A movable stone screening device

Abstract

The present invention discloses a movable block stone screening device, including a movable frame and a screening mechanism arranged on the movable frame. The screening mechanism includes a first bin body, a screen plate and an adjusting component; the top of the first bin body has an input port, and one side has a first output port; the screen plate includes a frame, at least one first skeleton and at least one second skeleton, the frame is located between the input port and the first output port, at least one first skeleton and at least one second skeleton are crisscrossed and accommodated in the frame, and the frame is isolated to form a plurality of screen openings; the adjusting component is used to adjust the size of the screen opening. The screen plate of the movable block stone screening device of the present invention can perform simple preliminary screening on the block stone, and ensure the integrity and completeness of the block stone quality. At the same time, the size of the screen opening of the screen plate can be adjusted by the adjusting component, and the acceptance rate of the block stone quality is comprehensively improved. It has strong safety, applicability, and flexibility, and reduces the cost of labor and mechanical operation.

Description

Technical Field

[0001] The invention relates to the technical field of island tunnel engineering, and in particular to a movable block stone screening device. Background Art

[0002] Island tunnel projects often involve many types of block stones of different sizes, but the main quality problem of block stones in island tunnel projects is that the blocks picked are too broken and cannot meet the requirements of throwing stones into the sea. The corresponding blocks can be obtained through on-site blasting, but due to factors such as rock properties and manual picking, most of the blocks are difficult to meet on-site construction requirements. The risk factor of the on-site multi-level slope picking and loading and stacking cross-operation of the excavator manipulator is high, which is greatly affected by blasting, stone texture, mechanical damage and human factors. The long-term manual operation with a long sight distance and a large variety of block stone sizes have a great impact on the overall quality, making it difficult to ensure that the block stone particle size meets the quality requirements of island tunnel project construction. Summary of the invention

[0003] In order to solve the technical problem mentioned in the background technology that the blocks of stone picked up in the island tunnel project are too broken and the particle size of the blocks of stone does not meet the requirements for throwing stones into the sea, the present invention provides a movable block stone screening device.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A movable block stone screening device: comprising a movable frame and a screening mechanism arranged on the movable frame, wherein the screening mechanism comprises a first bin body, a screening plate and an adjusting assembly;

[0006] The first bin body has an input port on the top and a first output port on one side;

[0007] The sieve plate comprises a frame, at least one first frame and at least one second frame, the frame is located between the input port and the first output port, at least one first frame and at least one second frame are crisscrossed and accommodated in the frame, and the frame is isolated to form a plurality of sieve ports;

[0008] The adjusting component is used for adjusting the size of the sieve opening.

[0009] As a further improvement of the above scheme: the adjustment component includes at least one fixed plate, the fixed plate is arranged at the bottom of the second frame, the fixed plate is provided with at least one through hole, the first frame is inserted into the through hole, and the second frame can move relative to the axial direction of the first frame through the through hole.

[0010] As a further improvement of the above solution: the screening mechanism further includes a housing, a track block, a first clamping block, a self-locking component and an unlocking component;

[0011] The track block is inserted into the frame and can move axially along the first frame. One end of the track block is connected to the second frame. The shell is fixed to the other end of the track block. A first slot is provided at the bottom of the frame. The first block is provided on the shell.

[0012] The self-locking component is movably disposed in the housing, and is used to drive the first card block to be inserted into the first card slot;

[0013] The unlocking component can be movably arranged on the track block, and is used to act on the self-locking component to make the first locking block disengage from the first locking slot.

[0014] As a further improvement of the above solution: track grooves are provided on both sides of the frame body of the frame, the track grooves are parallel to the first frame, and the track blocks are movably clamped in the track grooves.

[0015] As a further improvement of the above solution: the self-locking assembly includes a second slider, a first connecting rod and a first spring;

[0016] The second slider is accommodated in the shell and can move vertically relative to the shell. The first connecting rod is fixedly inserted in the second slider. One end of the first connecting rod is used to drive the movement of the first card block. The first spring is used to drive the first card block to move toward the first card slot.

[0017] As a further improvement of the above solution: the unlocking assembly includes a ramp, a roller, a pull rod and a transmission component;

[0018] The inclined platform is accommodated in the shell, the roller is connected to the first connecting rod and is pressed by the inclined platform, the pull rod is inserted into the second frame, the transmission component is accommodated in the track block, and the pull rod drives the inclined platform to move in the axial direction of the second frame through the transmission component.

[0019] As a further improvement of the above solution: the movable block stone screening device also includes a second warehouse body, one side of the second warehouse body is connected to the first output port, and the other side is provided with a second output port, and the second output port is penetrated by a belt transmission component.

[0020] As a further improvement of the above scheme: the sieve plate is divided into a first sieve plate and a second sieve plate, the first sieve plate is arranged at the input port, the second sieve plate is accommodated in the first bin body, the second sieve plate is located below the first sieve plate, and one end of the second sieve plate is connected to the first output port.

[0021] As a further improvement of the above solution: a third output port is provided on the first bin body, the third output port is located below the second sieve plate, and a belt transmission component is passed through the third output port.

[0022] As a further improvement of the above scheme: the movable stone screening device also includes a moving mechanism, the moving mechanism includes a track wheel assembly and a power assembly, the track wheel assembly is arranged at the bottom of the movable frame, and the power assembly can provide power for the movement of the track wheel assembly.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The sieve plate of the movable stone screening device of the present invention can perform simple preliminary screening on the stones, thereby ensuring the integrity and completeness of the stone quality. At the same time, the size of the sieve opening of the sieve plate can be adjusted by adjusting the components, thereby comprehensively improving the acceptance rate of the stone quality. It has strong safety, applicability and flexibility, and reduces labor and mechanical operation costs.

[0025] The present invention realizes the quality control of the block stone picking of the island tunnel project and greatly improves the picking efficiency; it ensures the material supply and backfill quality of the island tunnel construction; it is suitable for picking raw stones of various specifications and types, and is controllable, adjustable and movable, which makes the picking of blocks of stone on the mining platform more convenient and safe, and ensures the quality and supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a movable block stone screening device provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of a partial three-dimensional structure of a movable block stone screening device;

[0028] Figure 3 for Figure 1 Schematic diagram of the top view of the middle sieve plate;

[0029] Figure 4 for Figure 3 Schematic diagram of the cross-section structure at CC in the middle;

[0030] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0031] Figure 6 for Figure 4 Schematic diagram of the structure of the part;

[0032] Figure 7 for Figure 6 A schematic diagram of the distribution state of the guide groove and the second clamping groove after the second skeleton is sheared and spread out along its axial direction;

[0033] Figure 8 for Figure 1 A schematic diagram of the structure of the bottom of the movable frame viewed from above;

[0034] Fig. 9 A schematic diagram of the three-dimensional structure of the equipment control chassis main body of the movable block stone screening device provided in an embodiment of the present invention.

[0035] Description of main symbols:

[0036] 10. Movable rack;

[0037] 20, first bin body; 21, first sieve plate; 211, frame; 212, first frame; 213, second frame; 214, fixing plate; 215, through hole; 216, track groove; 217, first slot; 22, second sieve plate; 23, second conveyor belt; 24, third output port;

[0038] 30. Second warehouse; 31. Second output port; 32. First conveyor belt;

[0039] 40. housing; 41. track block; 411. first slide slot; 42. connecting plate; 43. first clamping block; 44. second slider; 45. first connecting rod;

[0040] 50. fixed block; 51. first slider; 52. second connecting rod; 53. ramp; 54. roller; 55. guide groove; 56. second clamping groove; 57. second clamping block; 58. traction rope; 59. pull rod;

[0041] 60. Track wheel assembly;

[0042] 70. Equipment control chassis body; 71. Equipment control console; 72. Equipment indicator digital display screen. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0044] Please combine Figure 1 The movable block stone screening device includes a movable frame 10 and a screening mechanism, and the screening mechanism includes a first bin body 20, a screen plate and an adjusting component.

[0045] Please combine Figure 1 and Figure 2The movable frame 10 in this embodiment has an overall rectangular structure and serves as the substrate of the entire device. The first warehouse body 20 is arranged on the movable frame 10. The first warehouse body 20 has an input port (not marked) on the top and a first output port (not marked) on one side. The first warehouse body 20 is a semi-enclosed space mainly composed of four solid circular steel columns and three baffles (not marked), which can prevent stones from colliding and splashing during the screening process. The four solid circular steel columns can be installed on the top of the movable frame 10 by welding. The baffles can be connected between the columns by welding.

[0046] Please combine Figure 3 The screen plate includes a frame 211, at least one first frame 212 and at least one second frame 213. The frame 211 is located between the input port and the first output port. The screen plate can be used to screen the blocks of stone input into the first bin body 20, and the blocks of stone that meet the engineering quality requirements can be selected for the engineering needs of subsequent island tunnel projects.

[0047] At least one first skeleton 212 and at least one second skeleton 213 are crisscrossed and accommodated in the frame 211, and a plurality of sieve openings (not shown) are isolated in the frame 211. The adjustment component is used to adjust the size of the sieve opening, and the size of the sieve opening can be changed according to the different requirements of the block stones of the island tunnel project, and adjusted to different specifications of sieve plates for screening.

[0048] Please combine Figure 4 The adjustment assembly includes at least one fixing plate 214, which is disposed at the bottom of the second frame 213, and at least one through hole 215 is formed on the fixing plate 214. The first frame 212 is inserted into the through hole 215. The second frame 213 can move relative to the axial direction of the first frame 212 through the through hole 215 to adjust the size of the sieve opening. The number and position of the through holes 215 can correspond to the number and position of the first frame 212, and the size of the sieve opening can be adjusted by changing the distance between each second frame 213.

[0049] Please combine Figure 5 The screening mechanism further includes a housing 40, a track block 41, a first clamping block 43, a self-locking assembly and an unlocking assembly. The track block 41 is inserted into the frame 211 and can move axially along the first frame 212. In this embodiment, track grooves 216 are provided on both sides of the frame 211. The track grooves 216 are parallel to the first frame 212. The track block 41 is slidably clamped in the track grooves 216 so as to move relative to the first frame 212 together with the second frame 213.

[0050] One end of the track block 41 is connected to the second frame 213. In this embodiment, a slot (not shown) is provided on the track block 41 for inserting the second frame 213. The second frame 213 is inserted into the slot, which can make the synchronous movement of the track block 41 and the second frame 213 more stable.

[0051] The housing 40 is fixed to the other end of the track block 41 to move synchronously with the track block 41. The first clamping block 43 is arranged on the housing 40 and is located below the frame 211. A first clamping slot 217 is provided at the bottom of the frame 211. The first clamping slot 217 is an overall long strip-shaped slot body, and the first clamping slot 217 is parallel to the first frame 212. The top of the first clamping block 43 is always arranged opposite to the notch of the first clamping slot 217.

[0052] The self-locking assembly is movably disposed in the housing 40 to drive the first locking block 43 to lock into the first locking groove 217 to complete the fixation of the relative position between the second frame 213 and the first frame 212 .

[0053] The unlocking component is movably disposed on the track block 41 and is used to act on the self-locking component to disengage the first locking block 43 from the first locking groove 217 to release the fixed state between the second frame 213 and the first frame 212, so as to facilitate the adjustment of each second frame 213.

[0054] Please combine Figure 5 The self-locking assembly includes a second slider 44, a first connecting rod 45 and a first spring. The second slider 44 is received in the housing 40. The housing 40 is hollow, and the second slider 44 can slide vertically relative to the housing 40. The first connecting rod 45 is fixedly inserted in the second slider 44 to move synchronously with the first connecting rod 45. One end of the first connecting rod 45 is used to drive the movement of the first block 43.

[0055] In this embodiment, a connecting plate 42 is provided below the housing 40, and the bottom of the first connecting rod 45 penetrates to the outside of the bottom of the housing 40 and is connected to one side of the top of the connecting plate 42, and the first connecting rod 45 moves synchronously with the connecting plate 42. The other side of the top of the connecting plate 42 is connected to the bottom of the first clamping block 43, and moves synchronously with the first clamping block 43.

[0056] The first spring is used to drive the first clamping block 43 to move toward the first clamping slot 217. The first spring is sleeved on the outside of the first connecting rod 45, and the two ends of the first spring are respectively connected to the bottom of the second slider 44 and the inner bottom wall of the housing 40. When the first clamping block 43 is clamped in the first clamping slot 217, the first spring is in a compressed state.

[0057] Please combine Figures 5 to 7 The unlocking assembly includes a ramp 53, a roller 54, a pull rod 59 and a transmission component. The ramp 53 is accommodated in the housing 40, the roller 54 is connected to the first connecting rod 45 and is pressed on the ramp 53, the pull rod 59 is inserted on the second frame, and the transmission component is accommodated in the track block 41. The pull rod 59 drives the ramp 54 to move in the axial direction of the second frame through the transmission component.

[0058] The inclined platform 53 is used to apply a certain pressure to the roller 54, so that the roller 54 drives the first clamping block 43 to move in a direction away from the first clamping groove 217. The pull rod 59 drives the inclined platform 53 through the transmission component.

[0059] The ramp 53 is in a right-angle trapezoidal structure as a whole, and has an inclined surface at its bottom, and the inclined surface is inclined from top to bottom from its end close to the track block 41 toward its end away from the track block 41 .

[0060] The roller 54 in this embodiment is installed on the top of the first connecting rod 45 and moves synchronously with the first connecting rod 45. The roller 54 is squeezed by the inclined platform 53, forcing the first connecting rod 45 to drive the connecting plate 42 and the first clamping block 43 to move downward synchronously, so that the first clamping block 43 is disengaged from the first clamping groove 217. In this process, the first connecting rod 45 also drives the second slider 44 to move downward in the housing 40, and further compresses the first spring.

[0061] The pull rod 59 is inserted into the end of the second frame 213 away from the pressure component. In this embodiment, the end of the second frame 213 facing the track block 41 is an open end, and the other end is a closed end, and the interior is a hollow structure. The pull rod 59 is inserted into the closed end of the second frame 213, and the pull rod 59 can move or rotate relative to the axial direction of the second frame 213. A movable hole (not marked) is opened on the closed end, which allows the pull rod 59 to slide axially or rotate circumferentially.

[0062] One end of the pull rod 59 is connected to the transmission component, and the other end protrudes out of the second frame 213 and is equipped with a screw head (not shown) to facilitate the user to twist or pump the pull rod 59.

[0063] Please combine Figure 6 and Figure 7 A second clamping block 57 is provided on the pull rod 59, and the second clamping block 57 is fixed on the outside of the pull rod 59. A guide groove 55 is axially opened on the inner side of the second skeleton 213, and a second clamping groove 56 is circumferentially opened on the inner side of the second skeleton 213. The guide groove 55 is connected to the second clamping groove 56 at one end away from the pressure-applying component, and the second clamping block 57 is slidably matched with the guide groove 55 and the second clamping groove 56.

[0064] In this embodiment, when the pull rod 59 moves axially, the second block 57 is located in the guide groove 55 and slides relatively in the guide groove 55. When the second block 57 moves to the second groove 56, the second block 57 can slide in the second groove 56 to realize the rotation of the pull rod 59.

[0065] The transmission component includes a fixed block 50, a first slider 51, a second connecting rod 52 and a traction rope 58. A first slide groove 411 is provided on the side of the track block 41 away from the slot, the fixed block 50 is arranged in the first slide groove 411, the first slider 51 is arranged in the first slide groove 411, the first slider 51 is located on the side of the fixed block 50 close to the ramp 53, and the first slider 51 can slide relatively in the first slide groove 411. The second connecting rod 52 is fixedly inserted on the first slider 51, one end of the second connecting rod 52 is connected to the ramp 53 to drive the ramp 53 to move in the extension direction of the first slide groove 411, and the other end slides through the fixed block 50. One end of the traction rope 58 is bolted to the other end of the second connecting rod 52, and the other end is connected to the other end of the pull rod 59. The traction rope 58 is always kept in a tensioned state.

[0066] In this embodiment, a second spring is sleeved outside the second connecting rod 52, and two ends of the second spring are respectively connected to the opposite sides of the fixing block 50 and the first sliding block 51. When the second spring is not deformed, the ramp 53 does not squeeze the roller 54 to move downward.

[0067] The working method of the unlocking component in this embodiment is to first pull the pull rod 59 outward to drive the second connecting rod 52, the inclined platform 53, and the first sliding block 51 to move synchronously through the traction rope 58, so that the inclined platform 53 drives the first connecting rod 45, the connecting plate 42 and the first clamping block 43 to move downward synchronously through the roller 54, so that the first clamping block 43 is disengaged from the first clamping groove 217, so as to facilitate the movement of each second skeleton 213 on the first skeleton 212, thereby adjusting the size of the sieve mouth.

[0068] During the process of pulling out the pull rod 59, the second block 57 first moves in the guide groove 55. When the second block 57 moves to the second groove 56, the pull rod 59 is rotated to make the second block 57 slide in the second groove 56, so that the second block 57 and the guide groove 55 are misaligned, interfering with the axial movement of the pull rod 59, so that the position of the pull rod 59 remains unchanged, so that the first block 43 and the first groove 217 are always in a stable separation state, which is convenient for the subsequent adjustment of the position of the second skeleton 213. In addition, the withdrawal process of the pull rod 59 will also cause the first slider 51 to move and squeeze the second spring, causing the second spring to compress and deform, so that after the position of the second skeleton 213 is adjusted, when the pull rod 59 is pushed into the second skeleton 213, not only the traction rope is always kept in a tensioned state, but also the first slider 51, the second connecting rod 52 and the ramp 53 can be pushed back to the initial position by the released elastic force, so that the first clamping block 43 and the first clamping groove 217 are restored to the clamping state, thereby effectively fixing the second skeleton 213 after the position adjustment, which is safe, reliable, convenient and quick.

[0069] Please combine Figure 1 and Figure 2The movable block stone screening device also includes a second bin body 30. The second bin body 30 in this embodiment is mainly composed of four solid round steel columns and four baffles (not shown) to form a closed space, which can prevent the block stones from colliding and splashing during the block stone transmission process. The four solid round steel columns can be installed on the top of the movable frame 10 by welding. The baffles can be connected between the columns by welding. The top of the second bin body 30 is closed by a baffle.

[0070] One side of the second bin body 30 is connected to the first output port for receiving the blocks screened by the first bin body 20 , and the other side is provided with a second output port 31 , and a belt transmission component is passed through the second output port 31 .

[0071] Please combine Figure 1 and Figure 2 The sieve plate is divided into a first sieve plate 21 and a second sieve plate 22. In this embodiment, the sieve plates in the first bin body 20 can be installed by screw connection, which is convenient for disassembly and assembly. The second sieve plate 22 is arranged at an angle. The first sieve plate 21 is arranged at the input port to perform preliminary screening of the block stones. The second sieve plate 22 is accommodated in the first bin body 20. The second sieve plate 22 is located below the first sieve plate 21, and one end is connected to the first output port. The lower end of the second sieve plate 22 is located at the first output port. The lower end of the first conveyor belt 32 is located below the first output port.

[0072] The first bin body 20 is provided with a third output port 24, and the third output port 24 is located below the second sieve plate 22. The third output port 24 is provided with a belt transmission component.

[0073] Please combine Figure 8 The movable block stone screening device also includes a moving mechanism, which includes a track wheel assembly and a power assembly. The track wheel assembly 60 is arranged at the bottom of the movable frame 10, and the power assembly can provide power for the movement of the track wheel assembly 60. The track wheel assembly 60 may include multiple sets of track wheels, tracks and other structures. The power assembly may include an engine, equipment lines, belt drive equipment, and belt brackets. The engine is used to provide power for the movement of the track wheel assembly, so that the moving mechanism can adapt to the surrounding complex terrain and enhance the uphill and downhill ability of the equipment.

[0074] The belt transmission assembly in this embodiment includes a first transmission belt 32 and a second transmission belt 23. The first transmission belt 32 and the second transmission belt 23 can both be installed by a belt bracket. The belt driving device can drive the first transmission belt 32 and the second transmission belt 23 in the belt transmission assembly respectively.

[0075] The first conveyor belt 32 is installed at the second output port 31. The first conveyor belt 32 is tilted, with one end extending to the first output port to receive the screened blocks, and the other end located outside the second output port 31 to facilitate loading and transporting the blocks.

[0076] The second conveyor belt 23 is installed at the third output port 24. The second conveyor belt 23 can convey the crushed slag screened by the second screen plate 22 to the outside of the first bin body 20 for reuse in crushed stone processing production.

[0077] Please combine Fig. 9 In this embodiment, the movable block stone screening device also includes an equipment control chassis body 70, an equipment control operating table 71, and an equipment indicator digital display screen 72. The equipment control chassis body 70 is arranged on the movable frame 10, and the equipment control operating table 71 and the equipment indicator digital display screen 72 are both attached to the equipment control chassis body 70 to control the overall operation status of the device.

[0078] The movable block stone screening device of this embodiment is suitable for block stones with a particle size of 15-60cm. The construction steps of the device are as follows: first move the device to a reasonable position on the mining platform, adjust the size of the screen opening of each screen plate, start each conveyor belt through the main body of the equipment control box, move the shipping vehicle to the lower side of the high end of the first conveyor belt 32, select the crushed stones (rough selection) after blasting by the hook machine, put them into the first screen plate 21 on the first warehouse 20, sieve them by their own weight and fall into the second screen plate 22, pass through the second screen plate 22 at a certain slope, fall into the first output port to the first conveyor belt 32, and export the blocks that meet the requirements to the second warehouse 30. The shipping vehicle can pick up and ship the qualified blocks in front of the finished product belt. The filter residue that passes through the second screen plate 22 is exported from the first warehouse 20 through the second conveyor belt 23 and piled to one side for subsequent processing into crushed stones by the crushed stone production line.

[0079] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A movable block stone screening device, characterized in that: It comprises a movable frame and a screening mechanism arranged on the movable frame, wherein the screening mechanism comprises a first bin body, a screening plate and an adjusting assembly; The first bin body has an input port on the top and a first output port on one side; The sieve plate comprises a frame, at least one first frame and at least one second frame, the frame is located between the input port and the first output port, at least one first frame and at least one second frame are crisscrossed and accommodated in the frame, and the frame is isolated to form a plurality of sieve ports; The adjustment component is used to adjust the size of the sieve opening; The movable block stone screening device further comprises a second warehouse body, one side of the second warehouse body is connected to the first output port, and the other side of the second warehouse body is provided with a second output port, and the second output port is provided with a belt transmission component; The sieve plate is divided into a first sieve plate and a second sieve plate, the first sieve plate is arranged at the input port, the second sieve plate is accommodated in the first bin body, the second sieve plate is located below the first sieve plate, and one end of the second sieve plate is connected to the first output port; The screening mechanism also includes a housing, a track block, a first clamping block, a self-locking component and an unlocking component; The track block is inserted into the frame and can move axially along the first frame. One end of the track block is connected to the second frame. The shell is fixed to the other end of the track block. A first slot is provided at the bottom of the frame. The first block is provided on the shell. The self-locking component is movably disposed in the housing, and is used to drive the first card block to be inserted into the first card slot; The unlocking component is movably disposed on the track block, and is used to act on the self-locking component to make the first clamping block disengage from the first clamping slot; The self-locking assembly includes a second slider, a first connecting rod and a first spring; The second slider is accommodated in the housing, and the second slider can move vertically relative to the housing, the first connecting rod is fixedly inserted in the second slider, one end of the first connecting rod is used to drive the movement of the first clamping block, and the first spring is used to drive the first clamping block to move toward the first clamping slot; The unlocking assembly includes a ramp, a roller, a pull rod and a transmission component; The inclined platform is accommodated in the shell, the roller is connected to the first connecting rod and is pressed by the inclined platform, the pull rod is inserted into the second frame, the transmission component is accommodated in the track block, and the pull rod drives the inclined platform to move in the axial direction of the second frame through the transmission component.

2. The movable block stone screening device according to claim 1, characterized in that: The adjustment component includes at least one fixing plate, which is arranged at the bottom of the second frame. The fixing plate is provided with at least one through hole, the first frame is inserted into the through hole, and the second frame can move relative to the axial direction of the first frame through the through hole.

3. The movable block stone screening device according to claim 1, characterized in that: Track grooves are provided on both sides of the frame body, the track grooves are parallel to the first frame, and the track blocks are movably clamped in the track grooves.

4. The movable block stone screening device according to claim 1, characterized in that: The first warehouse body is provided with a third output port, the third output port is located below the second sieve plate, and a belt transmission component is passed through the third output port.

5. The movable block stone screening device according to claim 1, characterized in that: The movable block stone screening device also includes a moving mechanism, which includes a track wheel assembly and a power assembly. The track wheel assembly is arranged at the bottom of the movable frame, and the power assembly can provide power for the movement of the track wheel assembly.

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