CN109731777B - Sand and stone screening device - Google Patents
Sand and stone screening device Download PDFInfo
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- CN109731777B CN109731777B CN201910223271.6A CN201910223271A CN109731777B CN 109731777 B CN109731777 B CN 109731777B CN 201910223271 A CN201910223271 A CN 201910223271A CN 109731777 B CN109731777 B CN 109731777B
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Abstract
The invention discloses a sand screening device, which comprises a frame body with a rectangular structure as a whole, and is characterized in that the frame body comprises one or more frame body units with a rectangular structure as a whole; the frame body units are arranged in a stacking manner in the vertical direction and are connected with opposite end surfaces; screens with a plate-shaped structure are respectively arranged in the frame body units, and the pore diameters of the screens in the vertical downward direction are sequentially reduced; and each screen cloth all is slope downward setting, and the side that is relative with the screen cloth lower extreme on the support body unit is open structure in order to form the grit export, the grit export is used for linking with the put into of grit holding device. The invention has the advantages of simple structure, convenient use and low use cost.
Description
Technical Field
The invention belongs to the technical field of construction machinery equipment, and particularly relates to a sand and stone screening device.
Background
Soft foundation treatment, also called soft foundation treatment, is a process for treating the soft foundation to make the settlement become strong enough and to improve the consolidation degree and stability of the soft foundation to the design requirements in order to prevent accidents such as instability of the building caused by the sinking and pulling crack of the foundation after the building if the foundation is not strong enough before the building.
The stone throwing and silt squeezing is to throw a certain amount of broken stone from the middle to two sides at the bottom of the roadbed, and the silt is squeezed out of the roadbed range so as to improve the roadbed strength. The broken stone is preferably made of large stone blocks which are not easy to be weathered, and the size of the broken stone is generally not smaller than 0.15m. The process mainly has the following problems in the construction process: because the particle size distribution of the raw materials is uneven, cavities are easy to generate, the cavities cannot be absolutely compact, the construction quality is reduced, sedimentation is easy to generate in the later stage, and particularly, the method is particularly obvious in areas with abundant groundwater. Therefore, it is necessary to sort the raw materials by particle size in construction.
The existing equipment is used for screening and classifying raw materials according to particle sizes, but the equipment is complex in structure, high in manufacturing cost, high in use cost and inconvenient to use. If the raw materials are manually screened and classified according to the particle size, time and labor are wasted.
Therefore, how to provide a sand screening device with simple structure, convenient use and low use cost becomes a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a grit sieving mechanism that simple structure facilitates the use, use cost is low.
In order to solve the technical problems, the invention adopts the following technical scheme:
the sand and stone screening device comprises a frame body with a rectangular structure as a whole, and is characterized in that the frame body comprises one or more frame body units with a rectangular structure as a whole; the frame body units are arranged in a stacking manner in the vertical direction and are connected with opposite end surfaces; screens with a plate-shaped structure are respectively arranged in the frame body units, and the pore diameters of the screens in the vertical downward direction are sequentially reduced; and each screen cloth all is slope downward setting, and the side that is relative with the screen cloth lower extreme on the support body unit is open structure in order to form the grit export, the grit export is used for linking with the put into of grit holding device.
Therefore, when the sand and stone screening device is used, sand and stone to be screened are placed in the screen corresponding to the uppermost frame body unit only manually or by adopting transmission equipment, the sand and stone are obliquely arranged when placed in the screen corresponding to the frame body unit, the sand and stone can roll on the screen under the action of self gravity, the grain size of the sand and stone is smaller than the aperture of the corresponding screen in the rolling process, the sand and stone can fall onto the screen corresponding to the next frame body unit from the mesh of the screen, and the sand and stone which does not fall out from the sand and stone outlet corresponding to one end of the screen, which is obliquely downward, slides out and is correspondingly collected in the sand and stone containing device; and sand falling into the next frame body unit continues to be screened. The device has the advantages of convenient operation in the use process, simple structure, low use cost and low labor input; and can conveniently screen out sand with various particle sizes.
As optimization, the frame body unit comprises an upper layer frame body unit, a middle layer frame body unit and a lower layer frame body unit which are vertically arranged in a stacked mode; the screen comprises an upper screen, a middle screen and a lower screen which are sequentially and correspondingly arranged in the upper frame unit, the middle frame unit and the lower frame unit; the pore diameters of the upper layer screen mesh, the middle layer screen mesh and the lower layer screen mesh are sequentially reduced.
In this way, the upper layer frame body unit, the middle layer frame body unit and the lower layer frame body unit are vertically arranged in a lamination manner; the upper screen, the middle screen and the lower screen are correspondingly arranged, and the pore diameters of the upper screen, the middle screen and the lower screen are sequentially reduced; can screen and obtain the grit of four kinds of different particle diameters, the design is more reasonable, can be better satisfy the user demand.
As optimization, the lower end of the upper screen is arranged opposite to the front side or the rear side of the frame body; the lower end of the middle layer screen mesh and the lower end of the lower layer screen mesh are arranged in one-to-one correspondence with the left side surface and the right side surface of the frame body.
Thus, the lower end of the upper screen is arranged opposite to the front side or the rear side of the frame body; the lower end of the middle layer screen mesh and the lower end of the lower layer screen mesh are arranged on the left side surface and the right side surface of the frame body in one-to-one correspondence; make corresponding three grit export orientation different positions, can conveniently set up grit holding device more, layout design is more reasonable.
As optimization, the lower end of the upper screen is arranged opposite to the front side surface of the frame body; the lower end of the middle layer screen and the lower end of the lower layer screen are sequentially arranged corresponding to the left side face and the right side face of the frame body.
Like this, the design is more reasonable, can conveniently arrange grit holding device more.
As optimization, the screen comprises a supporting frame with a rectangular frame structure, a screen structure is arranged inside the supporting frame, the screen structure comprises one or more transverse pull ropes arranged at intervals longitudinally and one or more longitudinal pull ropes arranged at intervals transversely, and the transverse pull ropes and the longitudinal pull ropes are lapped to form a sequential well lattice shape.
Like this, the structure of screen cloth is simpler, can more targeted change the screen cloth, reduces the use cost of whole device.
As optimization, the transverse pull ropes and the longitudinal pull ropes are both steel wire rope structures.
Therefore, the transverse pull rope and the longitudinal pull rope are both of steel wire rope structures, and the device has a certain buffering effect and is more reasonable in design.
As an optimization, the support frame comprises two transverse support rods and two longitudinal support rods; and the two transverse supporting rods and the two longitudinal supporting rods are connected to form a rectangular frame structure.
Like this, the structure is simpler, and the design is more reasonable.
As optimization, the frame body unit comprises an upper rectangular frame and a lower rectangular frame which are vertically arranged at intervals; the four corners of the upper rectangular frame are respectively connected and fixed with an upper connecting rod which is vertically downward, and the four corners of the lower rectangular frame are respectively connected and fixed with a lower connecting rod which is vertically upward; a vertical spring mechanism is arranged between the upper connecting rod and the lower connecting rod which are opposite to each other, and the upper working end and the lower working end of the spring mechanism are respectively connected with the upper connecting rod and the lower connecting rod and provide vertical push-pull acting force.
In the actual use process, the shapes of the sand stones needing to be screened are irregular, and when the sand stones are screened by the device with the structure, the problem exists that part of sand stones cannot roll along the inclined direction of the screen even under the action of self gravity when the sand stones fall onto the corresponding screen; and part of sand and stone are blocked when passing through the sieve holes of the sieve because the sand and stone have almost large pore diameters. When the above problem takes place, just need to shut down, then the manual adoption instrument of staff promotes corresponding grit, causes to waste time and energy, has reduced grit screening efficiency.
In this way, after the screen mesh corresponding to the frame body unit is impacted by the gravity of the sand stone, the screen mesh is connected between the upper connecting rod and the lower connecting rod corresponding to the upper rectangular frame and the lower rectangular frame through the vertical spring mechanism, so that the upper connecting rod and the lower connecting rod corresponding to the upper rectangular frame can vertically reciprocate and generate vertical vibration, and the vibration device can enable the vibration of the whole screen mesh to be more severe, sand stone clamping stagnation and the inside of the screen mesh can be better avoided, and sand stone can better pass through the screen holes of the screen mesh; and enabling sand on the screen to roll better in the oblique direction of the screen; thereby achieving the advantages of saving manpower and improving screening efficiency.
As optimization, the frame body unit is correspondingly provided with a vibration device; the vibrating device comprises two vibrating motors, wherein the vibrating motors are connected and fixed on a group of sides of the frame body unit, which are perpendicular to the sand outlet, in a one-to-one correspondence manner.
Thus, the vibrating device adopts the vibrating motor and has the advantage of simple structure. In the specific implementation, the vibration motor can be correspondingly arranged on each frame body unit, and the vibration motor can also be correspondingly arranged on one of the frame body units.
As optimization, a vertical mounting plate is connected between the upper rectangular frame and the lower rectangular frame, and the vibration motor is mounted and fixed on the mounting plate.
Like this, simple structure can make things convenient for vibrating motor's installation fixed.
As optimization, the lower end of the upper connecting rod is fixedly connected with a first connecting block and a second connecting block which are horizontal and are arranged at intervals along the vertical direction; the upper end of the lower connecting rod is fixedly connected with a third connecting block and a fourth connecting block which are horizontal and are vertically arranged at intervals; the spring mechanism comprises a vertical spiral spring; the upper end of the spiral spring passes through the abdication hole on the second connecting block and is connected to the lower surface of the first connecting block; the lower end of the spiral spring passes through the abdication hole on the third connecting block and is connected to the upper surface of the fourth connecting block; the spiral spring is internally provided with a vertical guide rod, the upper end of the guide rod passes through a guide hole on the first connecting block and extends upwards to the upper surface of the first connecting block, and the lower end of the guide rod passes through a guide hole on the fourth connecting block and extends downwards to the lower surface of the fourth connecting block; and the upper end and the lower end of the guide rod are respectively provided with a limiting structure, and the working ends of the limiting structures are correspondingly abutted and supported on the upper surface of the first connecting block and the lower surface of the fourth connecting block and limit the vertical movement of the guide rod.
In this way, the structure of the spring mechanism is simpler. When in use, the vertical movement range can be well limited; and through setting up coil spring for above-mentioned device is when using, after the grit is put into from the top, coil spring atress back can make the screen cloth that corresponds reciprocate in vertical, and produces vertical direction's vibration, and the design is more reasonable.
As optimization, the guide rod is of a hollow pipe structure; the limiting structure comprises a vertical threaded rod arranged in the guide rod, and two ends of the threaded rod respectively exceed the upper end face and the lower end face of the guide rod; an upper adjusting nut and a lower adjusting nut are respectively connected with the upper end face and the lower end face of the guide rod at intervals in a threaded manner at the upper end and the lower end of the threaded rod; the lower end face of the upper adjusting nut is fixedly connected with an upper adjusting pipe which is arranged downwards, the upper adjusting pipe is sleeved at the upper end of the connecting rod in a vertically sliding way, and the lower end face of the upper adjusting pipe is propped against and supported on the upper surface of the first connecting plate; the upper end face of the lower adjusting nut is fixedly connected with a lower adjusting pipe which is arranged upwards, the lower adjusting pipe is sleeved at the lower end of the connecting rod in a vertically sliding mode, and the upper end face of the lower adjusting pipe is abutted and supported on the lower surface of the fourth connecting plate.
Like this, when screening the grit, the particle diameter scope of grit is different, and the vertical direction that its needs produces reciprocating motion and vibration are different, and above-mentioned device can reach the grit of different scope particle diameter through using the screen cloth of different apertures and screen. But how to make the support body unit can adapt to the grit of different scope particle diameters to carry out the screening, just becomes another technical problem that needs to solve. Through adjusting nut and lower adjusting nut with corresponding promotion upper adjusting pipe and lower adjusting pipe, can compress coil spring for it can be better filters the grit of different scope particle diameter, makes the adaptability of whole device stronger, facilitates the use more, has still reduced its use cost.
As optimization, the upper connecting rod and the lower connecting rod are both angle steel structures arranged vertically; the first connecting block and the second connecting block are welded and connected to the inner side of the right angle on the upper connecting rod; the third connecting block and the fourth connecting block are all welded on the right-angle inner side on the lower connecting rod.
Therefore, the structure is simpler, and the whole device is convenient to process and manufacture.
As an optimization, the spiral spring comprises a first spiral spring, a second spiral spring and a third spiral spring which are coaxially arranged and vertically stacked.
Thus, a first coil spring, a second coil spring, and a third coil spring are provided; the opposite ends of the first spiral spring, the second spiral spring and the third spiral spring are connected, and the elastic coefficients are arranged in different ways; the whole design is more reasonable, and vibration can be generated vertically better.
As optimization, a first gasket and a second gasket are respectively arranged between the first spiral spring and the second spiral spring and between the second spiral spring and the third spiral spring, and the first gasket and the second gasket are respectively sleeved on the guide rod in a vertically sliding way; the lower end of the first spiral spring and the upper end of the second spiral spring are respectively abutted and supported on the upper surface and the lower surface of the first gasket; the lower end of the second spiral spring and the upper end of the third spiral spring are respectively abutted and supported on the upper surface and the lower surface of the second gasket.
Like this, the design is more reasonable, can make things convenient for first coil spring, second coil spring and third coil spring's connection more.
As an optimization, the diameters of the first gasket and the second gasket are smaller than the diameters of the yielding holes on the second connecting block and the third connecting block.
Thus, the design is more reasonable.
Drawings
Fig. 1 is a front view (only one set of vibration motors is shown) of an embodiment of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of the structure of the screen of fig. 1.
Fig. 5 is a schematic view of the spring mechanism of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The specific implementation method comprises the following steps: as shown in fig. 1 to 5, the sand screening device comprises a frame body 1 with a rectangular overall structure, wherein the frame body comprises one or more frame body units 2 with a rectangular overall structure; the frame body units 2 are arranged in a stacking manner in the vertical direction and are connected with opposite end surfaces; the frame body units 2 are respectively internally provided with screens 3 which are integrally in a flat plate structure, and the apertures of the screens 3 in the vertical downward direction are sequentially reduced; and each screen 3 is inclined downwards, and the side face opposite to the lower end of the screen on the frame unit 2 is in an open structure to form a sand outlet, and the sand outlet is used for being connected with an inlet of a sand containing device.
Therefore, when the sand and stone screening device is used, sand and stone to be screened are placed in the screen corresponding to the uppermost frame body unit only manually or by adopting transmission equipment, the sand and stone are obliquely arranged when placed in the screen corresponding to the frame body unit, the sand and stone can roll on the screen under the action of self gravity, the grain size of the sand and stone is smaller than the aperture of the corresponding screen in the rolling process, the sand and stone can fall onto the screen corresponding to the next frame body unit from the mesh of the screen, and the sand and stone which does not fall out from the sand and stone outlet corresponding to one end of the screen, which is obliquely downward, slides out and is correspondingly collected in the sand and stone containing device; and sand falling into the next frame body unit continues to be screened. The device has the advantages of convenient operation in the use process, simple structure, low use cost and low labor input; and can conveniently screen out sand with various particle sizes.
In this embodiment, the frame unit 2 includes an upper layer frame unit 4, a middle layer frame unit 5 and a lower layer frame unit 6 that are vertically stacked; the screen 3 comprises an upper screen 7, a middle screen 8 and a lower screen 9 which are sequentially and correspondingly arranged in the upper frame unit, the middle frame unit and the lower frame unit; the pore diameters of the upper layer screen mesh, the middle layer screen mesh and the lower layer screen mesh are sequentially reduced.
In this way, the upper layer frame body unit, the middle layer frame body unit and the lower layer frame body unit are vertically arranged in a lamination manner; the upper screen, the middle screen and the lower screen are correspondingly arranged, and the pore diameters of the upper screen, the middle screen and the lower screen are sequentially reduced; can screen and obtain the grit of four kinds of different particle diameters, the design is more reasonable, can be better satisfy the user demand.
In the specific embodiment, the lower end of the upper screen 7 is arranged opposite to the front side or the rear side of the frame body; the lower end of the middle layer screen 8 and the lower end of the lower layer screen 9 are arranged in one-to-one correspondence with the left side surface and the right side surface of the frame body.
Thus, the lower end of the upper screen is arranged opposite to the front side or the rear side of the frame body; the lower end of the middle layer screen mesh and the lower end of the lower layer screen mesh are arranged on the left side surface and the right side surface of the frame body in one-to-one correspondence; make corresponding three grit export orientation different positions, can conveniently set up grit holding device more, layout design is more reasonable.
In the specific embodiment, the lower end of the upper screen 7 is arranged opposite to the front side surface of the frame body; the lower end of the middle layer screen 8 and the lower end of the lower layer screen 9 are sequentially arranged corresponding to the left side surface and the right side surface of the frame body.
Like this, the design is more reasonable, can conveniently arrange grit holding device more.
In this embodiment, the screen 3 includes a supporting frame 10 with a rectangular frame structure, a screen structure is disposed inside the supporting frame, the screen structure includes one or more longitudinal pull ropes 11 disposed at intervals longitudinally, and one or more longitudinal pull ropes 12 disposed at intervals transversely, where the transverse pull ropes and the longitudinal pull ropes overlap to form a sequential well lattice shape.
Like this, the structure of screen cloth is simpler, can more targeted change the screen cloth, reduces the use cost of whole device. In the concrete implementation, the longitudinal pull ropes and the transverse pull ropes can be reinforced.
In this embodiment, the transverse pull rope 11 and the longitudinal pull rope 12 are both steel wire rope structures.
Therefore, the transverse pull rope and the longitudinal pull rope are both of steel wire rope structures, and the device has a certain buffering effect and is more reasonable in design.
In this embodiment, the supporting frame 10 includes two transverse supporting rods 13 and two longitudinal supporting rods 14; and the two transverse supporting rods and the two longitudinal supporting rods are connected to form a rectangular frame structure.
Like this, the structure is simpler, and the design is more reasonable.
In this embodiment, the frame unit 2 includes an upper rectangular frame 15 and a lower rectangular frame 16 vertically arranged at intervals; the four corners of the upper rectangular frame are respectively connected and fixed with an upper connecting rod 17 which is vertically downward, and the four corners of the lower rectangular frame are respectively connected and fixed with a lower connecting rod 18 which is vertically upward; a vertical spring mechanism is arranged between the opposite group of upper connecting rods and the lower connecting rods, and the upper working end and the lower working end of the spring mechanism are respectively connected with the upper connecting rods and the lower connecting rods and provide vertical push-pull acting force; the frame body unit is correspondingly provided with a vibrating device.
In the actual use process, the shapes of the sand stones needing to be screened are irregular, and when the sand stones are screened by the device with the structure, the problem exists that part of sand stones cannot roll along the inclined direction of the screen even under the action of self gravity when the sand stones fall onto the corresponding screen; and part of sand and stone are blocked when passing through the sieve holes of the sieve because the sand and stone have almost large pore diameters. When the above problem takes place, just need to shut down, then the manual adoption instrument of staff promotes corresponding grit, causes to waste time and energy, has reduced grit screening efficiency.
In this way, after the screen mesh corresponding to the frame body unit is impacted by the gravity of the sand stone, the screen mesh is connected between the upper connecting rod and the lower connecting rod corresponding to the upper rectangular frame and the lower rectangular frame through the vertical spring mechanism, so that the upper connecting rod and the lower connecting rod corresponding to the upper rectangular frame can vertically reciprocate and generate vertical vibration, and the vibration device can enable the vibration of the whole screen mesh to be more severe, sand stone clamping stagnation and the inside of the screen mesh can be better avoided, and sand stone can better pass through the screen holes of the screen mesh; and enabling sand on the screen to roll better in the oblique direction of the screen; thereby achieving the advantages of saving manpower and improving screening efficiency. In the concrete implementation, the lower end of the screen is hinged on the lower rectangular frame and can vertically rotate, and the upper end of the screen is lapped on the upper rectangular frame, so that the screen can better generate vibration.
In this embodiment, the vibration device includes a vibration motor 19, and the vibration motor is fixed on a group of sides perpendicular to the sand outlet on the frame unit in a two-to-one corresponding connection manner.
Thus, the vibrating device adopts the vibrating motor and has the advantage of simple structure. In the specific implementation, the vibration motor can be correspondingly arranged on each frame body unit, and the vibration motor can also be correspondingly arranged on one of the frame body units.
In this embodiment, a vertical mounting plate 20 is connected between the upper rectangular frame 15 and the lower rectangular frame 16, and the vibration motor 19 is mounted and fixed on the mounting plate.
Like this, simple structure can make things convenient for vibrating motor's installation fixed.
In the specific embodiment, a first connecting block 21 and a second connecting block 22 which are horizontal and are arranged at intervals along the vertical direction are fixedly connected at the lower end of the upper connecting rod 17; a third connecting block 23 and a fourth connecting block 24 which are horizontally and vertically arranged at intervals are fixedly connected to the upper end of the lower connecting rod 18; the spring mechanism comprises a vertical coil spring 25; the upper end of the spiral spring 25 passes through the relief hole on the second connecting block 22 and is connected to the lower surface of the first connecting block 21; the lower end of the coil spring 25 passes through the relief hole on the third connecting block 23 and is connected to the upper surface of the fourth connecting block 24; the spiral spring is internally provided with a vertical guide rod 26, the upper end of the guide rod 26 passes through a guide hole on the first connecting block and extends upwards to the upper surface of the first connecting block, and the lower end of the guide rod 26 passes through a guide hole on the fourth connecting block and extends downwards to the lower surface of the fourth connecting block; and the upper end and the lower end of the guide rod are respectively provided with a limiting structure, and the working ends of the limiting structures are correspondingly abutted and supported on the upper surface of the first connecting block and the lower surface of the fourth connecting block and limit the vertical movement of the guide rod.
In this way, the structure of the spring mechanism is simpler. When in use, the vertical movement range can be well limited; and through setting up coil spring for above-mentioned device is when using, after the grit is put into from the top, coil spring atress back can make the screen cloth that corresponds reciprocate in vertical, and produces vertical direction's vibration, and the design is more reasonable.
In this embodiment, the guide rod 26 has a hollow tube structure; the limiting structure comprises a vertical threaded rod 27 arranged in the guide rod, and two ends of the threaded rod 27 respectively exceed the upper end face and the lower end face of the guide rod; an upper adjusting nut 28 and a lower adjusting nut 29 are respectively connected with the upper end face and the lower end face of the guide rod 26 at intervals in a threaded manner at the upper end and the lower end of the threaded rod; an upper adjusting pipe 30 which is fixedly arranged downwards is connected to the lower end face of the upper adjusting nut, the upper adjusting pipe is sleeved at the upper end of the connecting rod in a vertically sliding way, and the lower end face of the upper adjusting pipe is propped against and supported on the upper surface of the first connecting plate; the upper end face of the lower adjusting nut is fixedly connected with the lower adjusting pipe 31 which is arranged upwards, the lower adjusting pipe is sleeved at the lower end of the connecting rod in a vertically sliding mode, and the upper end face of the lower adjusting pipe is abutted and supported on the lower surface of the fourth connecting plate.
Like this, when screening the grit, the particle diameter scope of grit is different, and the vertical direction that its needs produces reciprocating motion and vibration are different, and above-mentioned device can reach the grit of different scope particle diameter through using the screen cloth of different apertures and screen. But how to make the support body unit can adapt to the grit of different scope particle diameters to carry out the screening, just becomes another technical problem that needs to solve. Through adjusting nut and lower adjusting nut with corresponding promotion upper adjusting pipe and lower adjusting pipe, can compress coil spring for it can be better filters the grit of different scope particle diameter, makes the adaptability of whole device stronger, facilitates the use more, has still reduced its use cost.
In this embodiment, the upper connecting rod 17 and the lower connecting rod 18 are all vertically arranged angle steel structures; the first connecting block 21 and the second connecting block 22 are both welded on the inner side of the right angle on the upper connecting rod; the third connecting block 23 and the fourth connecting block 24 are both welded on the right-angle inner side of the lower connecting rod.
Therefore, the structure is simpler, and the whole device is convenient to process and manufacture.
In this embodiment, the coil springs 25 include a first coil spring 32, a second coil spring 33, and a third coil spring 34 that are coaxially disposed and vertically stacked.
Thus, a first coil spring, a second coil spring, and a third coil spring are provided; the opposite ends of the first spiral spring, the second spiral spring and the third spiral spring are connected, and the elastic coefficients are arranged in different ways; the whole design is more reasonable, and vibration can be generated vertically better.
In the present embodiment, a first gasket and a second gasket are respectively arranged between the first coil spring 32 and the second coil spring 33 and between the second coil spring 33 and the third coil spring 34, and the first gasket and the second gasket are respectively sleeved on the guide rod in a vertically sliding manner; the lower end of the first spiral spring and the upper end of the second spiral spring are respectively abutted and supported on the upper surface and the lower surface of the first gasket; the lower end of the second spiral spring and the upper end of the third spiral spring are respectively abutted and supported on the upper surface and the lower surface of the second gasket.
Like this, the design is more reasonable, can make things convenient for first coil spring, second coil spring and third coil spring's connection more.
In this embodiment, the diameters of the first gasket and the second gasket are smaller than the diameters of the relief holes on the second connection block and the third connection block.
Thus, the design is more reasonable.
Claims (7)
1. The sand and stone screening device comprises a frame body (1) with a rectangular structure as a whole, and is characterized in that the frame body comprises one or more frame body units (2) with a rectangular structure as a whole; the frame body units (2) are arranged in a stacking manner in the vertical direction and are connected with opposite end surfaces; screens (3) with a whole flat plate structure are respectively arranged in the frame body units (2), and the pore diameters of the screens (3) in the vertical downward direction are sequentially reduced; the screens (3) are obliquely downwards arranged, the side surface of the frame body unit (2) opposite to the lower end of the screen is in an open structure so as to form a sand outlet, and the sand outlet is used for being connected with an inlet of a sand containing device;
the frame body unit (2) comprises an upper rectangular frame (15) and a lower rectangular frame (16) which are vertically arranged at intervals; an upper connecting rod (17) which is vertically downward is respectively connected and fixed at four corners of the upper rectangular frame, and a lower connecting rod (18) which is vertically upward is respectively connected and fixed at four corners of the lower rectangular frame; a vertical spring mechanism is arranged between the opposite group of upper connecting rods and the lower connecting rods, and the upper working end and the lower working end of the spring mechanism are respectively connected with the upper connecting rods and the lower connecting rods and provide vertical push-pull acting force;
the frame body unit is correspondingly provided with a vibrating device; the vibrating device comprises two vibrating motors (19), wherein the vibrating motors are connected and fixed on a group of sides of the frame body unit, which are perpendicular to the sand outlet, in a one-to-one correspondence manner;
a vertical mounting plate (20) is connected between the upper rectangular frame (15) and the lower rectangular frame (16), and the vibration motor (19) is fixedly arranged on the mounting plate;
the lower end of the screen (3) is hinged with the lower rectangular frame (16), and the upper end of the screen is overlapped with the upper rectangular frame (15);
the lower end of the upper connecting rod (17) is fixedly connected with a first connecting block (21) and a second connecting block (22) which are horizontal and are arranged at intervals along the vertical direction; the upper end of the lower connecting rod (18) is fixedly connected with a third connecting block (23) and a fourth connecting block (24) which are horizontal and are vertically arranged at intervals; the spring mechanism comprises a vertical spiral spring (25); the upper end of the spiral spring (25) passes through a yielding hole on the second connecting block (22) and is connected to the lower surface of the first connecting block (21); the lower end of the spiral spring (25) passes through a yielding hole on the third connecting block (23) and is connected to the upper surface of the fourth connecting block (24); the spiral spring is internally provided with a vertical guide rod (26), the upper end of the guide rod (26) passes through a guide hole on the first connecting block and extends upwards to the upper surface of the first connecting block, and the lower end of the guide rod (26) passes through a guide hole on the fourth connecting block and extends downwards to the lower surface of the fourth connecting block; the upper end and the lower end of the guide rod are respectively provided with a limiting structure, and the working ends of the limiting structures are correspondingly abutted and supported on the upper surface of the first connecting block and the lower surface of the fourth connecting block and limit the vertical movement of the guide rod;
the guide rod (26) is of a hollow pipe structure; the limiting structure comprises a vertical threaded rod (27) arranged in the guide rod, and two ends of the threaded rod (27) respectively exceed the upper end face and the lower end face of the guide rod; an upper adjusting nut (28) and a lower adjusting nut (29) are respectively connected with the upper end face and the lower end face of the guide rod (26) at intervals in a threaded manner at the upper end and the lower end of the threaded rod; an upper adjusting pipe (30) which is fixedly arranged downwards is connected to the lower end face of the upper adjusting nut, the upper adjusting pipe is sleeved at the upper end of the connecting rod in a vertically sliding way, and the lower end face of the upper adjusting pipe is abutted and supported on the upper surface of the first connecting plate; a lower adjusting pipe (31) which is fixedly arranged upwards is connected to the upper end face of the lower adjusting nut, the lower adjusting pipe is sleeved at the lower end of the connecting rod in a vertically sliding way, and the upper end face of the lower adjusting pipe is abutted and supported on the lower surface of the fourth connecting plate;
the upper connecting rod (17) and the lower connecting rod (18) are both angle steel structures arranged vertically; the first connecting block (21) and the second connecting block (22) are welded and connected to the inner side of the right angle on the upper connecting rod; the third connecting block (23) and the fourth connecting block (24) are welded and connected to the inner side of the right angle on the lower connecting rod;
the spiral spring (25) comprises a first spiral spring (32), a second spiral spring (33) and a third spiral spring (34) which are coaxially arranged and vertically stacked, wherein the elastic coefficients of the first spiral spring (32), the second spiral spring (33) and the third spiral spring (34) are different from each other;
a first gasket and a second gasket are respectively arranged between the first spiral spring (32) and the second spiral spring (33) and between the second spiral spring (33) and the third spiral spring (34), and the first gasket and the second gasket are respectively sleeved on the guide rod in a vertically sliding way; the lower end of the first spiral spring and the upper end of the second spiral spring are respectively abutted and supported on the upper surface and the lower surface of the first gasket; the lower end of the second spiral spring and the upper end of the third spiral spring are respectively abutted and supported on the upper surface and the lower surface of the second gasket;
the diameters of the first gasket and the second gasket are smaller than the diameters of the yielding holes on the second connecting block and the third connecting block.
2. The sand screening device according to claim 1, wherein the frame unit (2) comprises an upper frame unit (4), a middle frame unit (5) and a lower frame unit (6) which are vertically stacked; the screen (3) comprises an upper screen (7), a middle screen (8) and a lower screen (9) which are sequentially and correspondingly arranged in the upper frame unit, the middle frame unit and the lower frame unit; the pore diameters of the upper layer screen mesh, the middle layer screen mesh and the lower layer screen mesh are sequentially reduced.
3. The sand screening device according to claim 2, characterized in that the lower end of the upper screen (7) is arranged opposite to the front side or the rear side of the frame body; the lower end of the middle layer screen (8) and the lower end of the lower layer screen (9) are arranged in one-to-one correspondence with the left side surface and the right side surface of the frame body.
4. A sand screening apparatus according to claim 3, characterized in that the lower end of the upper screen (7) is arranged against the front side of the frame body; the lower end of the middle layer screen (8) and the lower end of the lower layer screen (9) are sequentially arranged corresponding to the left side surface and the right side surface of the frame body.
5. The sand screening device according to claim 1, characterized in that the screen (3) comprises a rectangular frame structure supporting frame (10), a screen structure is arranged in the supporting frame, the screen structure comprises one or more longitudinal and spaced transverse pull ropes (11) and one or more longitudinal and spaced longitudinal pull ropes (12), and the transverse pull ropes and the longitudinal pull ropes are lapped to form a sequential well lattice shape.
6. The sand screening device according to claim 5, characterized in that the transverse pull rope (11) and the longitudinal pull rope (12) are both of a wire rope structure.
7. The sand screening device according to claim 5, characterized in that the support frame (10) comprises two transverse support bars (13) and two longitudinal support bars (14); and the two transverse supporting rods and the two longitudinal supporting rods are connected to form a rectangular frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910223271.6A CN109731777B (en) | 2019-03-22 | 2019-03-22 | Sand and stone screening device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910223271.6A CN109731777B (en) | 2019-03-22 | 2019-03-22 | Sand and stone screening device |
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| CN109731777A CN109731777A (en) | 2019-05-10 |
| CN109731777B true CN109731777B (en) | 2023-06-16 |
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Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291798B (en) * | 2013-05-29 | 2015-11-18 | 南京航空航天大学 | A kind of preload adjustable bidirectional elastic support device |
| CN205308767U (en) * | 2015-12-18 | 2016-06-15 | 北京砼友混凝土浇筑技术有限公司 | High -efficient detachable building sieve |
| WO2017118376A1 (en) * | 2016-01-05 | 2017-07-13 | The Hong Kong University Of Science And Technology | Bi-linear energy dissipating and shock absorbing device for cable subjected to tension |
| KR101684386B1 (en) * | 2016-02-18 | 2016-12-08 | 천계성 | Sand impurity removal device |
| CN106499244B (en) * | 2016-10-17 | 2020-11-13 | 安徽信泽科技有限公司 | Three-dimensional shock isolation device with adjustable vertical early rigidity |
| CN106285149A (en) * | 2016-10-17 | 2017-01-04 | 安徽信泽科技有限公司 | A kind of three-dimensional isolation device that can regulate vertical rigidity in early days |
| CN206253347U (en) * | 2016-11-30 | 2017-06-16 | 上海长赋机械科技有限公司 | A kind of laboratory test sieve |
| CN206346104U (en) * | 2016-12-26 | 2017-07-21 | 西南交通大学 | A kind of bridge shockproof device |
| CN208261211U (en) * | 2018-01-22 | 2018-12-21 | 天津广坤腾阳建筑安装有限公司 | A kind of sand separating equipment for building |
| CN108412949B (en) * | 2018-03-27 | 2019-09-20 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The rigidity dynamic vibration absorbers such as a kind of pipeline is adaptive |
| CN108644330A (en) * | 2018-06-01 | 2018-10-12 | 杨玲玲 | A kind of tensioner apparatus of bidirectional self-adaptive damping |
| CN108838071A (en) * | 2018-07-06 | 2018-11-20 | 山东理工大学 | A kind of multistage sieve mine equipment of industrial ore excavation |
| CN109058263A (en) * | 2018-09-30 | 2018-12-21 | 苏州创而丰五金科技有限公司 | A kind of flexible connection metalwork |
| CN209736037U (en) * | 2019-03-22 | 2019-12-06 | 中冶建工集团有限公司 | Grit sieving mechanism |
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