A mining geological excavation stone crushing and screening device

Abstract

The present invention relates to the technical field of stone crushing and screening, and discloses a stone crushing and screening device for mining geological excavation, comprising a crushing end shell, the front side surface of the crushing end shell is fixedly connected to a supporting frame, the inner side of the supporting frame is fixedly connected to a sub-screening end shell, the front end of the sub-screening end shell is fixedly connected to a discharging end shell, the top of the crushing end shell is fixedly connected to a hopper, the rear end inner wall of the sub-screening end shell is fixedly connected to a crushing jaw plate, a guide plate is arranged below the crushing jaw plate, a crushing mechanism is arranged inside the crushing end shell, a sub-screening mechanism is arranged inside the sub-screening end shell, and a discharging mechanism is arranged inside the discharging end shell; the crushing mechanism comprises a supporting frame, and the present invention can enlarge the gap between the extrusion jaw plate and the crushing jaw plate, avoid the large blocks of stone piled up in the hopper from being stuck by the movement of the extrusion jaw plate, and improve the unloading efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stone crushing and screening, in particular to a stone crushing and screening device for mining geological excavation. Background Art

[0002] Mining geological excavation refers to the extraction of ore or stone by mining and digging in a specific mining area. The main purpose of this process is to obtain the required mineral resources. Screening is the process of separating the crushed stone according to particle size, usually using equipment such as vibrating screens or drum screens. The purpose of screening is mainly to obtain stone specifications that meet market demand and avoid mixing fine and coarse materials.

[0003] The patent with announcement number CN221816230U discloses a stone crushing and screening device, which belongs to the field of screening technology; it includes: a box body, a feed hopper is arranged on the top of the box body, the box body is a cavity structure, and the inside of the box body is sequentially provided with a crushing component, a screening net 1 and a screening net 2 from top to bottom, the top of the screening net 1 is slidably connected with a scraper 1, and the top of the screening net 2 is slidably connected with a scraper 2, and a feed port 1 and a feed port 2 are respectively opened on the inner wall of one side of the box body, the feed port 1 is adapted to the screening net 1, and the feed port 2 is adapted to the screening net 2, and a return mechanism is installed on the outer wall of one side of the box body. The material is crushed by the crushing component, and the crushed material is screened by screening nets 1 and 2. The accumulated material drives scraper 1 and scraper 2 to move through the driving mechanism, and the accumulated material is pushed into the collection box to avoid disassembly of screening nets 1 and 2. This patent also has the problem that large stone piles are easily stuck and affect the feeding efficiency. Therefore, it is necessary to design a stone crushing and screening device for mining geological excavation. Summary of the invention

[0004] The object of the present invention is to provide a mining geological excavation stone crushing and screening device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a mining geological excavation stone crushing and screening device, comprising a crushing end shell, the front side of the crushing end shell is fixedly connected to a support frame, the inner side of the support frame is fixedly connected to a sub-screening end shell, the front end of the sub-screening end shell is fixedly connected to a discharging end shell, the top of the crushing end shell is fixedly connected to a hopper, the rear end inner wall of the sub-screening end shell is fixedly connected to a crushing jaw plate, a guide plate is arranged below the crushing jaw plate, a crushing mechanism is arranged inside the crushing end shell, a sub-screening mechanism is arranged inside the sub-screening end shell, and a discharging mechanism is arranged inside the discharging end shell;

[0006] The crushing mechanism includes a support frame, a plurality of elastic telescopic rods are fixedly connected to the inner side of the support frame, the end of the elastic telescopic rod away from the support frame is fixedly connected to a jaw plate pressure block, a cavity is opened inside the jaw plate pressure block, and a swing block is fixedly connected to the inner wall of the cavity, a swing shaft is arranged at the axis center of the inner cavity of the jaw plate pressure block, a flip turning rod is hingedly connected to the middle inner part of the jaw plate pressure block, a pressure sliding rod is slidably connected to the rear end of the flip turning rod, the front bottom end of the jaw plate pressure block is hingedly connected to the extrusion jaw, and a trapezoidal block is fixedly connected to the rear side surface of the extrusion jaw.

[0007] The guide plate is fixedly connected to the screening end shell, the jaw plate pressure block is slidably connected to the crushing end shell, the support frame is fixedly connected to the crushing end shell, the outer surface of the swing shaft is provided with a protrusion, the swing shaft is rotatably connected to the crushing end shell, the flip turning rod is located below the jaw plate pressure block cavity, the pressure sliding rod is fixedly connected to the crushing end shell, the trapezoidal block is slidably connected to the jaw plate pressure block, and the end of the flip turning rod away from the pressure sliding rod is in contact with the trapezoidal block, and the excavated and crushed stones in the mine are put into the hopper, so that the large stones in the hopper fall between the crushing jaw plate and the jaw plate pressure block under the action of gravity. With the rotation of the swing shaft driven by the external motor, the swing shaft rotates one circle, and the swing block inside the jaw plate pressure block is pushed through the protrusion of the swing shaft every time it rotates one circle, so that the swing block is pressed and drives the jaw plate pressure block to move in the direction away from the support frame. At this time, the jaw plate pressure block moves and pulls the connected elastic telescopic rod to extend, so that the spring inside the elastic telescopic rod is in a tensioned state, The jaw plate pressure block is made to approach one side of the crushing jaw plate to squeeze the stone, and the swing shaft is used to rotate at a high speed to generate high-frequency jitter between the elastic telescopic rod and the jaw plate pressure block, thereby breaking the stone into small pieces of stone. At the same time, the jaw plate pressure block is used to move away from the supporting frame, so that the flip turning rod connected to the jaw plate pressure block is pulled by the pressure sliding rod, and the flip turning rod is made to slide along the outer side of the pressure sliding rod away from the pressure sliding rod. At this time, the flip turning rod is deflected under the action of the pressure sliding rod force, so that the other end of the flip turning rod contacts and squeezes the trapezoidal block, so that the extruded trapezoidal block is driven by the force to drive the extrusion jaw plate to deflect around the connection point of the jaw plate pressure block, so that the jaw plate pressure block is close to the crushing jaw plate, and the extrusion jaw plate first presses the large stone through deflection, and then squeezes the stone again through the jaw plate pressure block and the crushing jaw plate, thereby increasing the number of stone extrusion times. At the same time, when the extrusion jaw plate is reset, the gap between the extrusion jaw plate and the crushing jaw plate is enlarged, and the large stone blocks in the hopper are prevented from being stuck through the extrusion jaw plate activity, thereby improving the unloading efficiency.

[0008] According to the above technical scheme, the sub-screening mechanism includes a fixed push rod, and the fixed push rod is set at two places, and each of the fixed push rods is slidably connected to an inclined slot rod at one end away from the jaw plate pressure block, and the front side of each inclined slot rod is fixedly connected to a slide bar plate, and the top of each slide bar plate is slidably connected to a guide rod, and a coarse material box is fixedly connected between the two slide bar plates, and four material guide cone bars are slidably penetrated through the top surface of the coarse material box, and a plurality of slow resistance bars are fixedly connected on both sides of each material guide cone bar, and a hinge slot rod is fixedly connected to the bottom side of the front end of the slide bar plate, and the bottom end of the hinge slot rod is hingedly connected to a long hinge rod. The end of the long hinge rod away from the hinge slot rod is slidably connected with a flip slot rod, and the top of the flip slot rod is slidably connected with a fine material box, the fixed push rod is fixedly connected to the bottom end of the jaw plate pressure block, the guide rod is fixedly connected to the sub-screen end shell, the flip slot rod is rotatably connected to the sub-screen end shell, the fine material box is slidably connected to the sub-screen end shell, a spring is provided on the outer side of the guide rod, and the two ends of the spring are respectively fixedly connected to the guide rod and the sliding rod plate, and filter holes are provided on the upper surface of the coarse material box. When the jaw plate pressure block moves away from the supporting frame, the movement of the jaw plate pressure block drives the connected fixed push rod to move, thereby allowing the fixed push rod to move. The inclined slot rod is pushed and slides along the inclined slot rod. The movement of the inclined slot rod drives the connected slide bar plate to slide along the guide rod and pull the spring. At this time, the slide bar plate drives the connected coarse material box to move together. When the coarse material box drives the connected hinge slot rod to move, the hinge slot rod pulls the long hinge rod, and the long hinge rod pulls the flip slot rod to flip, so that the top of the flip slot rod drives the fine material box to move. At this time, the fine material box is opposite to the movement direction, and the stone crushed by the jaw plate block enters the coarse material box along the guide plate, and the coarse material box is made to reciprocate at a high frequency along the guide rod to separate the fine sand and stone crushed on the coarse material box, and the fine sand and stone enter the fine material box along the filter holes on the surface of the coarse material box. The fine material box moves with the movement of the coarse material box, and the fine sand and gravel are discharged through the discharge port opened on the bottom, while the stones and mixed mud blocks roll down along the inclined coarse material box, and the materials can be guided to the filter holes on the coarse material box through the guide cone bars connected to the fine material box, so that there is a gap between the stones and the filter holes of the coarse material box, so that the fine sand and gravel can pass through the filter holes of the coarse material box. The resistance bars connected to the guide cone bars can slow down the rolling speed of the falling stones, and at the same time, the resistance bars can slide in contact with the coarse material box, so that the blocked filter holes on the coarse material box can be vibrated off by sliding and beating, thereby avoiding the influence of blockage on the filtering effect.

[0009] The cam is connected to the bottom of the discharging opening, and the cam is connected to the bottom of the discharging opening by a spring, and the cam is connected to the bottom of the discharging opening by a spring. The movement of the rod drives the connected pressure inclined plate and inclined guide plate to move. At this time, the pressure inclined plate approaches one side of the baffle plate, and the mud and stone rolled down by the flipping rod enter the top of the inclined guide plate. As the crushing bars on the pressure inclined plate approach the baffle plate, they pressurize the stone and mud at the same time. After the mud is pressed, a part of it is crushed and discharged from the feeding trough on the side of the baffle plate, and the other part falls from the discharge end shell as the stone rolls along the top of the filter rod. The stone has high strength and moves upward along the inclined pressure inclined plate after being stressed. When the pressure inclined plate moves away from the baffle plate, the distance between the baffle plate and the pressure inclined plate increases, allowing the fallen stone to be discharged from the discharge trough along the inclined guide plate, realizing the separation of soil and stone, thereby simplifying the screening process, removing other debris besides stone, and improving the quality of stone.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0011] The present invention is provided with a support frame, an elastic telescopic rod, a jaw plate pressure block, a swing block, a swing shaft, a turning rod, a pressure sliding rod, a trapezoidal block, and an extruding jaw plate, so that the jaw plate pressure block is close to the crushing jaw plate, and the extruding jaw plate is deflected to firstly press the large block of stone, and then the jaw plate pressure block and the crushing jaw plate are used to squeeze the stone again, thereby increasing the number of stone squeezing times. At the same time, when the extruding jaw plate is reset, the gap between the extruding jaw plate and the crushing jaw plate is enlarged, and the large block of stone in the hopper is prevented from being stuck by the movement of the extruding jaw plate, thereby improving the material discharge efficiency.

[0012] The present invention is provided with a fixed push rod, an inclined slot rod, a sliding rod plate, a guide rod, a coarse material box, a guide cone bar, a slow resistance bar, a hinge slot rod, a long hinge rod, a flip slot rod, and a fine material box. The guide cone bar connected to the fine material box can guide the material to the filter hole on the coarse material box, so that there is a gap between the stone and the filter hole of the coarse material box, so that the fine sand and stone can pass through the filter hole of the coarse material box. The slow resistance bar connected to the guide cone bar slows down the rolling speed of the falling stone. At the same time, the slow resistance bar slides in contact with the coarse material box, so that the blocked filter hole on the coarse material box can be slapped to shake off the blocked material, thereby avoiding the influence of blockage on the filtering effect.

[0013] The present invention is provided with a pressure inclined plate, an inclined guide plate, a filter rod, a material baffle plate, a material threading trough, a material discharge trough and crushing strips. When the pressure inclined plate is away from the material baffle plate, the distance between the material baffle plate and the pressure inclined plate increases, so that fallen stones are discharged from the material discharge trough along the inclined guide plate, so as to realize the separation of soil and stone, thereby simplifying the screening process, removing other debris besides stone, and improving the quality of stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0017] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the mechanism position distribution structure of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the crushing mechanism of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the screening mechanism of the present invention;

[0021] Figure 6 This is a schematic diagram of the connecting structure of the guide cone bar of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the discharging mechanism of the present invention.

[0023] In the figure: 1, crushing end shell; 2, screening end shell; 3, hopper; 4, support frame; 5, crushing mechanism; 51, support frame; 52, elastic telescopic rod; 53, jaw plate pressure block; 54, swing block; 55, swing shaft; 56, flip turning rod; 57, pressure slide rod; 58, trapezoidal block; 59, squeeze jaw plate; 6, screening mechanism; 61, fixed push rod; 62, inclined slot rod; 63, slide plate; 64 , guide rod; 65, coarse material box; 66, guide cone bar; 67, slow resistance bar; 68, hinge slot rod; 69, long hinge rod; 610, flip slot rod; 611, fine material box; 7, discharge mechanism; 71, pressure ramp; 72, inclined guide plate; 73, filter rod; 74, baffle plate; 75, threading trough; 76, discharge trough; 77, crushing ribs; 8, discharge end shell; 9, guide plate; 10, crushing jaw plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7 The embodiment of the present invention is a mining geological excavation stone crushing and screening device, comprising a crushing end shell 1, a support frame 4 is fixedly connected to the front side of the crushing end shell 1, a sub-screening end shell 2 is fixedly connected to the inner side of the support frame 4, a discharging end shell 8 is fixedly connected to the front end of the sub-screening end shell 2, a hopper 3 is fixedly connected to the top of the crushing end shell 1, a crushing jaw plate 10 is fixedly connected to the inner wall of the rear end of the sub-screening end shell 2, a guide plate 9 is arranged below the crushing jaw plate 10, a crushing mechanism 5 is arranged inside the crushing end shell 1, a sub-screening mechanism 6 is arranged inside the sub-screening end shell 2, and a discharging mechanism 7 is arranged inside the discharging end shell 8;

[0026] The crushing mechanism 5 includes a support frame 51, on the inner side of which are fixedly connected a plurality of elastic telescopic rods 52, a jaw plate pressing block 53 being fixedly connected at one end of the elastic telescopic rod 52 away from the support frame 51, a cavity being provided inside the jaw plate pressing block 53, and a swing block 54 being fixedly connected to the inner wall of the cavity, a swing shaft 55 being arranged at the axis center of the inner cavity of the jaw plate pressing block 53, a flip turning rod 56 being hingedly connected inside the middle of the jaw plate pressing block 53, a pressure sliding rod 57 being slidably connected to the rear end of the flip turning rod 56, a squeezing jaw 59 being hingedly connected to the front bottom end of the jaw plate pressing block 53, and a trapezoidal block 58 being fixedly connected to the rear side of the squeezing jaw 59.

[0027] The guide plate 9 is fixedly connected to the sub-screening end shell 2, the jaw plate pressing block 53 is slidably connected to the crushing end shell 1, the support frame 51 is fixedly connected to the crushing end shell 1, the outer surface of the swing shaft 55 is provided with a protrusion, the swing shaft 55 is rotatably connected to the crushing end shell 1, the flip turning rod 56 is located below the cavity of the jaw plate pressing block 53, the pressure sliding rod 57 is fixedly connected to the crushing end shell 1, the trapezoidal block 58 is slidably connected to the jaw plate pressing block 53, and the end of the flip turning rod 56 away from the pressure sliding rod 57 is fitted with the trapezoidal block 58, and the jaw plate pressing block 53 moves away from the support frame 51, so that the flip turning rod 56 connected to the jaw plate pressing block 53 is pulled by the pressure sliding rod 57, and the flip turning rod 56 slides along the outer side of the pressure sliding rod 57 The extrusion jaw 59 is moved away from the pressure slide 57. At this time, the flipping turning rod 56 is deflected under the action of the pressure slide 57, so that the other end of the flipping turning rod 56 contacts and squeezes the trapezoidal block 58, so that the extrusion trapezoidal block 58 is driven by the force to drive the extrusion jaw 59 to deflect around the connection point of the jaw plate pressure block 53, so that the jaw plate pressure block 53 is close to the crushing jaw 10, and the extrusion jaw 59 is deflected to first apply pressure to the large pieces of stone, and then the jaw plate pressure block 53 and the crushing jaw 10 are used to squeeze the stone again, thereby increasing the number of stone squeezing times. At the same time, when the extrusion jaw 59 is reset, the gap between the extrusion jaw 59 and the crushing jaw 10 is enlarged, and the large pieces of stone in the hopper 3 are prevented from being stuck by the movement of the extrusion jaw 59, thereby improving the unloading efficiency.

[0028] The screening mechanism 6 includes a fixed push rod 61, which is provided at two locations. An end of each fixed push rod 61 away from the jaw plate pressure block 53 is slidably connected to a chute rod 62, a front side of each chute rod 62 is fixedly connected to a slide plate 63, a top end of each slide plate 63 is slidably connected to a guide rod 64, a coarse material box 65 is fixedly connected between the two slide plates 63, four material guide cone bars 66 are slidably penetrated on the top surface of the coarse material box 65, a plurality of slow resistance bars 67 are fixedly connected on both sides of each material guide cone bar 66, and a front side of the slide plate 63 is fixedly connected to the guide rod 64. The bottom side of the end is fixedly connected with a hinge slot rod 68, the bottom end of the hinge slot rod 68 is hingedly connected with a long hinge rod 69, the end of the long hinge rod 69 away from the hinge slot rod 68 is slidably connected with a flip slot rod 610, the top of the flip slot rod 610 is slidably connected with a fine material box 611, the fixed push rod 61 is fixedly connected to the bottom end of the jaw plate pressure block 53, the guide rod 64 is fixedly connected to the sub-screen end shell 2, the flip slot rod 610 is rotatably connected to the sub-screen end shell 2, the fine material box 611 is slidably connected to the sub-screen end shell 2, and a spring is arranged on the outer side of the guide rod 64, and the two ends of the spring are respectively The coarse material box 65 is fixedly connected to the guide rod 64 and the slide plate 63, and the upper surface of the coarse material box 65 is provided with filter holes. The stones crushed by the jaw plate pressure block 53 enter the coarse material box 65 along the guide plate 9, and the coarse material box 65 is made to reciprocate at a high frequency along the guide rod 64 to separate the fine sand and stone crushed on the coarse material box 65, and the fine sand and stone enter the fine material box 611 along the filter holes on the surface of the coarse material box 65, and the fine material box 611 moves with the movement of the coarse material box 65, and the fine sand and stone are discharged through the discharge port opened on the bottom surface, while the stone and the mixed mud blocks are discharged. The material will roll down along the inclined coarse material box 65, and the material can be guided to the filter holes on the coarse material box 65 through the material guide cone bar 66 connected to the fine material box 611, so that there is a gap between the stone and the filter holes of the coarse material box 65, so that the fine sand and gravel can pass through the filter holes of the coarse material box 65. The slow-down bar 67 connected to the material guide cone bar 66 can slow down the rolling speed of the falling stones, and at the same time, the slow-down bar 67 can slide in close contact with the coarse material box 65, so that the blocked filter holes on the coarse material box 65 can be shaken off by sliding and beating, thereby avoiding the influence of blockage on the filtering effect.

[0029] The discharging mechanism 7 includes a pressure inclined plate 71, the bottom end of the pressure inclined plate 71 is fixedly connected to an inclined guide plate 72, the inner side of the inclined guide plate 72 is fixedly connected to a plurality of filter rods 73, the inner bottom surface of the discharging end shell 8 is fixedly connected to a baffle plate 74, the side of the baffle plate 74 is provided with a material passing groove 75, a side of the discharging end shell 8 is fixedly connected to a discharge groove 76, the front side of the pressure inclined plate 71 is fixedly connected to a crushing rib 77, the coarse material box 65 is fixedly connected to the pressure inclined plate 71, and the inclined guide plate 72 is connected from one end to the The thickness of the other end gradually decreases, and the top surface of the inclined guide plate 72 is an inclined slope, and a filter groove is provided on the upper surface of the inclined guide plate 72. The baffle plate 74 is slidably connected to the inclined guide plate 72. When the pressure inclined plate 71 moves away from the baffle plate 74, the distance between the baffle plate 74 and the pressure inclined plate 71 increases, allowing the fallen stones to be discharged from the discharge trough 76 along the inclined inclined guide plate 72, thereby realizing the separation of soil and stone, thereby simplifying the screening process, removing other debris besides stone, and improving the quality of stone.

[0030] Working principle: the crushed stones excavated from the mine are put into the hopper 3, so that the large stones in the hopper 3 fall between the crushing jaw 10 and the jaw block 53 under the action of gravity. As the swing shaft 55 is driven by the external motor, the swing shaft 55 rotates one circle, and the swing block 54 inside the jaw block 53 is pushed through the protrusion of the swing shaft 55. After the swing block 54 is compressed, it drives the jaw block 53 to move away from the support frame 51. At this time, the movement of the jaw block 53 pulls the connected elastic telescopic rod 52 to extend, so that the spring inside the elastic telescopic rod 52 is in a tension state, so that the jaw block 53 is close to one side of the crushing jaw 10 to squeeze the stone, and the high-speed rotation of the swing shaft 55 is used to generate high-frequency jitter between the elastic telescopic rod 52 and the jaw block 53, so that the stone is crushed into small pieces of stone. At the same time, the jaw block 53 is used to move away from the support frame The movement of the support frame 51 causes the flipping turning rod 56 connected to the jaw plate pressing block 53 to be pulled by the pressure sliding bar 57, allowing the flipping turning rod 56 to slide along the outer side of the pressure sliding bar 57 away from the pressure sliding bar 57. At this time, the flipping turning rod 56 is deflected under the action of the pressure sliding bar 57, allowing the other end of the flipping turning rod 56 to contact and squeeze the trapezoidal block 58, so that the extruded trapezoidal block 58 is forced to drive the extrusion jaw 59 to deflect around the connection point of the jaw plate pressing block 53, so that the jaw plate pressing block 53 is close to the crushing jaw plate 10, and the extrusion jaw plate 59 is deflected to first press the large block of stone, and then the jaw plate pressing block 53 and the crushing jaw plate 10 are used to squeeze the stone again, thereby increasing the number of stone squeezing times. At the same time, when the extrusion jaw plate 59 is reset, the gap between the extrusion jaw plate 59 and the crushing jaw plate 10 is enlarged, and the large block of stone in the hopper 3 is prevented from being stuck by the movement of the extrusion jaw plate 59, thereby improving the material discharge efficiency;

[0031] When the jaw plate pressing block 53 moves away from the supporting frame 51, the movement of the jaw plate pressing block 53 drives the connected fixed push rod 61 to move, so that the fixed push rod 61 pushes and slides along the inclined slot rod 62, and the movement of the inclined slot rod 62 drives the connected slide bar plate 63 to slide along the guide rod 64 and pull the spring. At this time, the slide bar plate 63 drives the connected coarse material box 65 to move together. When the coarse material box 65 drives the connected hinge slot rod 68 to move, the hinge slot rod 68 pulls the long hinge rod 69, and the long hinge rod 69 pulls the flip slot rod 610 to flip, so that the top of the flip slot rod 610 drives the fine material box 611 to move. At this time, the fine material box 611 is opposite to the movement direction, and the stone crushed by the jaw plate pressing block 53 enters the coarse material box 65 along the guide plate 9, and the coarse material box 65 is made to reciprocate at high frequency along the guide rod 64, The crushed fine sand and gravel are separated from the stone, and the fine sand and gravel enter the fine material box 611 along the filter holes on the surface of the coarse material box 65. The fine material box 611 moves with the movement of the coarse material box 65, and discharges the fine sand and gravel through the discharge port opened on the bottom surface, while the stone and mixed mud roll down along the inclined coarse material box 65. The guide cone bar 66 connected to the fine material box 611 can guide the material to the filter holes on the coarse material box 65, so that there is a gap between the stone and the filter holes of the coarse material box 65, so that the fine sand and gravel can pass through the filter holes of the coarse material box 65. The slow resistance bar 67 connected to the guide cone bar 66 slows down the rolling speed of the falling stone, and the slow resistance bar 67 slides in contact with the coarse material box 65, so that the blocked filter holes on the coarse material box 65 can be shaken off by sliding and beating, thereby avoiding the influence of blockage on the filtering effect;

[0032] When the turning rod 56 slides along the jaw plate pressure block 53 by pulling the spring through the connected swing block 54, the turning rod 56 moves and drives the connected pressure inclined plate 71 and inclined guide plate 72 to move. At this time, the pressure inclined plate 71 approaches the side of the baffle plate 74, and the mud and stone rolling down the turning rod 56 enter the upper part of the inclined guide plate 72. As the crushing strips 77 on the pressure inclined plate 71 approach the baffle plate 74, they pressurize the stone and mud at the same time. After the mud is pressed, a part of it is crushed and penetrates the material from the side of the baffle plate 74. The remaining part of the stones rolls along the filter rod 73 and falls from the discharge end shell 8. The stones are strong and move upward along the inclined pressure ramp 71 after being stressed. When the pressure ramp 71 moves away from the baffle plate 74, the distance between the baffle plate 74 and the pressure ramp 71 increases, allowing the fallen stones to be discharged from the discharge trough 76 along the inclined guide plate 72, thereby separating the soil and stones, thereby simplifying the screening process, removing other debris besides stones, and improving the quality of stones.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mining geological excavation stone crushing and screening device, comprising a crushing end shell (1), characterized in that: The front side of the crushing end shell (1) is fixedly connected to a support frame (4), the inner side of the support frame (4) is fixedly connected to a screening end shell (2), the front end of the screening end shell (2) is fixedly connected to a discharge end shell (8), the top of the crushing end shell (1) is fixedly connected to a hopper (3), the rear end inner wall of the screening end shell (2) is fixedly connected to a crushing jaw plate (10), a guide plate (9) is arranged below the crushing jaw plate (10), a crushing mechanism (5) is arranged inside the crushing end shell (1), a screening mechanism (6) is arranged inside the screening end shell (2), and a discharge mechanism (7) is arranged inside the discharge end shell (8); The crushing mechanism (5) comprises a support frame (51), a plurality of elastic telescopic rods (52) are fixedly connected to the inner side of the support frame (51), one end of the elastic telescopic rod (52) away from the support frame (51) is fixedly connected to a jaw plate pressing block (53), a cavity is provided inside the jaw plate pressing block (53), and a swing block (54) is fixedly connected to the inner wall of the cavity, a swing shaft (55) is arranged at the axis center of the inner cavity of the jaw plate pressing block (53), a flip turning rod (56) is hingedly connected to the middle of the jaw plate pressing block (53), a pressure sliding rod (57) is slidably connected to the rear end of the flip turning rod (56), a front bottom end of the jaw plate pressing block (53) is hingedly connected to an extrusion jaw (59), and a trapezoidal block (58) is fixedly connected to the rear side of the extrusion jaw (59); The screening mechanism (6) comprises a fixed push rod (61), wherein the fixed push rod (61) is provided at two locations, wherein one end of each fixed push rod (61) away from the jaw plate pressure block (53) is slidably connected to a chute rod (62), a front side of each chute rod (62) is fixedly connected to a slide plate (63), a top end of each slide plate (63) is slidably connected to a guide rod (64), a coarse material box (65) is fixedly connected between the two slide plates (63), four material guide cone bars (66) are slidably penetrated through the top surface of the coarse material box (65), and a plurality of slow resistance bars (67) are fixedly connected to both sides of each material guide cone bar (66); The fixed push rod (61) is fixedly connected to the bottom end of the jaw plate pressing block (53); The discharging mechanism (7) comprises a pressure inclined plate (71), the bottom end of the pressure inclined plate (71) is fixedly connected to an inclined guide plate (72), the inner side of the inclined guide plate (72) is fixedly connected to a plurality of filter rods (73), the inner bottom surface of the discharging end shell (8) is fixedly connected to a material baffle plate (74), a side surface of the material baffle plate (74) is provided with a material passing groove (75), one side surface of the discharging end shell (8) is fixedly connected to a discharge groove (76), and the front side surface of the pressure inclined plate (71) is fixedly connected to a crushing strip (77); The coarse material box (65) is fixedly connected to the pressure inclined plate (71).

2. The mining geological excavation stone crushing and screening device according to claim 1 is characterized by: The guide plate (9) is fixedly connected to the screening end shell (2), the jaw plate pressure block (53) is slidably connected to the crushing end shell (1), the support frame (51) is fixedly connected to the crushing end shell (1), a protrusion is provided on the outer surface of the swing shaft (55), and the swing shaft (55) is rotatably connected to the crushing end shell (1).

3. The mining geological excavation stone crushing and screening device according to claim 2 is characterized by: The flipping turning rod (56) is located below the cavity of the jaw plate pressure block (53), the pressure sliding rod (57) is fixedly connected to the crushing end shell (1), the trapezoidal block (58) is slidably connected to the jaw plate pressure block (53), and one end of the flipping turning rod (56) away from the pressure sliding rod (57) is in contact with the trapezoidal block (58).

4. The mining geological excavation stone crushing and screening device according to claim 3 is characterized by: A hinge slot rod (68) is fixedly connected to the bottom side of the front end of the slide bar plate (63); a long hinge rod (69) is hingedly connected to the bottom end of the hinge slot rod (68); an end of the long hinge rod (69) away from the hinge slot rod (68) is slidably connected to a flip slot rod (610); and a fine material box (611) is slidably connected to the top end of the flip slot rod (610).

5. The mining geological excavation stone crushing and screening device according to claim 4 is characterized by: The guide rod (64) is fixedly connected to the sub-screening end shell (2), the flip groove rod (610) is rotatably connected to the sub-screening end shell (2), the fine material box (611) is slidably connected to the sub-screening end shell (2), a spring is provided on the outer side of the guide rod (64), and the two ends of the spring are respectively fixedly connected to the guide rod (64) and the sliding rod plate (63), and the upper surface of the coarse material box (65) is provided with filter holes.

6. The mining geological excavation stone crushing and screening device according to claim 5, characterized in that: The thickness of the inclined guide plate (72) gradually decreases from one end to the other end, and the top surface of the inclined guide plate (72) is an inclined slope. A filter groove is provided on the upper surface of the inclined guide plate (72), and the material blocking plate (74) is slidably connected to the inclined guide plate (72).

Images