CN114042616A - Grit sieving mechanism that building engineering used - Google Patents
Grit sieving mechanism that building engineering used Download PDFInfo
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- CN114042616A CN114042616A CN202111270170.8A CN202111270170A CN114042616A CN 114042616 A CN114042616 A CN 114042616A CN 202111270170 A CN202111270170 A CN 202111270170A CN 114042616 A CN114042616 A CN 114042616A
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- sand
- plate
- transmission
- screen device
- fixedly mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/06—Cone or disc shaped screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and discloses a sand screening device for constructional engineering, which comprises a base, wherein a position, close to one end, of the top of the base is fixedly provided with a stone storage groove, a generatrix positioned at the top of the outer surface of a screen device keeps a thirty-degree included angle with a plane where the top of the base is positioned, so that large-grained stones cannot pass through the screen and move towards one side with a larger pipe diameter under the action of component force of centrifugal force, and small-grained sand grains slide under the action of component force of centrifugal force and pass through the screen and are screened out, so that the sand grains can be better screened out from the inside of the screen device, the sand screening efficiency of the device is improved, the stones in the sand grains can continuously move to one side with a larger caliber along with the rotation of the screen device and are finally discharged out of the screen device, and the problem that the sand screening efficiency of a traditional sand screening machine is continuously reduced due to the fact that a large amount of stones stay in the traditional sand screening machine due to the adoption of a cylindrical sand screening net is avoided, the stability of the device operation has been improved.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a sand and stone screening device for constructional engineering.
Background
Can often use various engineering equipment on building engineering, wherein the screening sand machine is wherein an equipment of very important, and the structure mainly has driving system, the screen cloth, support and transportation equipment constitute, drive columniform screen cloth through driving system and filter the grit in the net, the sand of normal size can spill in the small opening of screen cloth in the grit, and the great stone of granule can be stayed in the screen cloth, can be carried away and pile up in other positions along with transportation equipment, this is the most extensive screening sand device of application range at present, has simple structure, high durability and convenient use, advantages such as low cost.
Although the existing sand screening device has many advantages, the parallel-prevention cylindrical screen can cause that the stones piled inside cannot be discharged, the excessive stones can prevent the sand with normal size from leaking from the leakage hole, the screening efficiency is reduced, the stones piled inside must be cleaned manually, if the accumulated stones are prevented from being cleaned in an inclined mode by utilizing a sliding mode, partial sand is discharged along with the stones, and waste is caused.
Disclosure of Invention
Aiming at the defects of the existing sand and stone screening device for the constructional engineering in the background technology in the using process, the invention provides the sand and stone screening device for the constructional engineering, which has the advantage of synchronously discharging stones in the sand screening process and solves the problem that the stones which cannot be screened out cannot be normally discharged by the traditional equipment.
The invention provides the following technical scheme: a gravel screening device for constructional engineering comprises a base, wherein a gravel storage groove is fixedly installed at the position, close to one end, of the top of the base, a support is fixedly installed at the position, close to the gravel storage groove, of the top of the base, a sand blocking plate is fixedly installed at the top of the support, the sand blocking plate is round in shape, a sleeve is fixedly installed at the lower end of the sand blocking plate, a blanking hole is formed in the top of the sleeve, a blanking pipe is fixedly installed on the outer surface of the sleeve and at the position, located at the top of the blanking hole, of the sleeve, a screen device is movably adjusted inside the sleeve, a transmission device is fixedly installed at one end of the screen device, a cushion block is fixedly installed at the position, close to the other end, of the top of the cushion block, a power machine is fixedly installed at one end of a power machine output shaft and fixedly connected with one end of the transmission device, and a sand dividing plate is fixedly installed at the position, located right below the screen device, of the top of the base, the cross section of the sand separating plate is triangular.
Preferably, the axes of the sand blocking plate, the sleeve, the screen device, the transmission device and the power machine are all on the same central line.
Preferably, a generatrix of the outer surface of the screen device, which is positioned at the bottom, is parallel to a plane of the top of the base, and an included angle of thirty degrees is kept between the generatrix of the outer surface of the screen device, which is positioned at the top, and the plane of the top of the base.
Preferably, the screen cloth device includes the connecting plate, one side fixed mounting of connecting plate has transmission, the opposite side fixed mounting of connecting plate has just sieve pole and just sieves the pole and distribute with the mode of annular array for first, the axis of just sieving the pole and the contained angle between the plane of connecting plate one side are fifteen degrees, the one end fixed mounting of just sieving the pole has an inner fixed plate, connecting plate and inner fixed plate activity are cup jointed in telescopic inside, the one end fixed mounting of inner fixed plate has dead lever and dead lever to distribute with the mode of annular array, interconnect and constitute a round platform column structure between one side fixed mounting of dead lever and screen cloth and the dead lever, the one end fixed mounting of dead lever has an outer fixed plate, fixed mounting has balancing weight and balancing weight to correspond with transmission on the inner wall of outer fixed plate.
Preferably, the transmission device comprises a transmission plate, one side of the transmission plate is fixedly connected with the connecting plate, a limiting shaft sleeve is fixedly mounted at the position, located at the center, of the other side of the transmission plate, a limiting rotating shaft is movably sleeved inside the limiting shaft sleeve, a spring seat is fixedly mounted at one end of the limiting rotating shaft, a transmission spring is fixedly mounted at one side of the spring seat and at the position, located at the outer side of the limiting rotating shaft, of the position, one end of the transmission spring is fixedly connected with the transmission plate, the other side of the spring seat is fixedly connected with one end of the output shaft of the power machine, and the connecting position between the transmission spring and the transmission plate corresponds to the balancing weight.
Preferably, the output rotating speed of the power machine is n, and when the rotating speed of the screen device reaches n, the sand and stones inside the screen device synchronously rotate with the screen device under the action of centrifugal force.
The invention has the following beneficial effects:
1. the invention fixedly installs the transmission spring on one side of the spring seat and the position outside the limit rotating shaft, and one end of the transmission spring is fixedly connected with the transmission plate, so that the transmission plate is not in rigid connection with the spring seat for transmission, the torque formed by the rotation of the spring seat can be released by the transmission spring and can not be completely transmitted to the transmission plate in the process that the power machine drives the spring seat to rotate, the rotating speeds of the transmission plate and the screen device are always unequal to the rotating speed of the power machine, if the connecting point of the transmission spring and the transmission plate is positioned at the bottom of the transmission plate (the position of A point shown in figure 7), the torque direction points to the horizontal left direction in figure 7, and the gravity direction and the torque direction form a ninety-degree included angle, so that the gravity can not obstruct the rotation of the transmission plate, if the connecting point of the transmission spring and the transmission plate is positioned at the left side of the transmission plate (the position of B point shown in figure 7) along with the rotation of the transmission plate, at this time, the torque direction is directed to the vertically upward direction in fig. 7, the gravity direction and the torque direction form an included angle of one hundred eighty degrees, the resistance is maximum and the rotating speed is slowest, so that the rotating speed is reduced and the rotating speed is less than n in the process of rotating from the point A to the point B, if the connecting point of the transmission spring and the transmission plate along with the rotation of the transmission plate is positioned at the top of the transmission plate (such as the point C shown in fig. 7), the torque direction is directed to the horizontal rightward direction in fig. 7, the gravity direction and the torque direction form an included angle of ninety degrees, so that the gravity does not hinder the rotation of the transmission plate, so that the rotating speed is increased and the rotating speed is less than n in the process of rotating from the point B to the point C, if the connecting point of the transmission spring and the transmission plate along with the rotation of the transmission plate is positioned at the right side of the transmission plate (such as the point D shown in fig. 7), the torque direction is directed to the vertically downward direction in fig. 7, and the gravity direction is a zero-degree included angle in the torque direction, the resultant force of the torque and the gravity is the largest and the rotating speed is the fastest at the moment, so that the rotating speed is accelerated and is greater than n in the process of rotating from the point C to the point D, if the connecting point of the transmission spring and the transmission plate is positioned at the bottom of the transmission plate again along with the rotation of the transmission plate (the position of the point A shown in figure 7), the rotating speed is reduced and is greater than n in the process of rotating from the point D to the point A, the half-course rotating speed is greater than n in the whole rotating process, the other half-course rotating speed is less than n, because the rotating speed output by the power machine is n and the sand inside the screen device rotates synchronously under the action of the centrifugal force when the rotating speed of the screen device reaches n, the half-course rotating speed is less than n, the sand rolls over on the bottom position of the inner cavity of the screen device to screen the sand, the half-course rotating speed is greater than n, the sand can rotate together with the screen device under the action of the centrifugal force, at the moment, an included angle of thirty degrees is kept between a bus located at the top of the outer surface of the screening device and a plane where the top of the base is located, large-particle stones cannot move towards one side with a larger pipe diameter under the action of component force of centrifugal force through the screening device, small-particle sands slide under the action of component force of centrifugal force and pass through the screening device and are screened out, the sands can be better screened out from the inside of the screening device, the sand screening efficiency of the device is improved, meanwhile, unqualified stones in the sands can continuously move towards one side with a larger pipe diameter along with the rotation of the screening device, the sands are finally discharged from the screening device and fall into a stone storage groove, the problem that the sand screening efficiency of a traditional sand screening machine is continuously reduced due to the fact that a large number of stones are remained in the traditional sand screening machine due to the adoption of a cylindrical sand screening net is avoided, and the running stability of the device is improved.
2. According to the sand separating device, the axes of the sand blocking plate, the sleeve, the screen device, the transmission device and the power machine are all on the same central line, so that sand thrown out of the top of the screen device by the screen device is blocked by the sand blocking plate and slides to the top of the sand separating plate from two sides of the screen device in the process that the rotating speed of the screen device is greater than n, the phenomenon that the sand thrown out of the top of the screen device cannot be concentrated and scattered to cause that the subsequent concentration is needed to waste labor force is avoided, and the use cost of the device is reduced.
3. According to the invention, the primary screening rods are fixedly arranged on the other side of the connecting plate and are distributed in the annular array mode, so that sand can pass through the primary screening of the primary screening rods before entering the screen device, the screen is prevented from being damaged due to the fact that large-particle stones enter the screen device, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic view of a structural screen apparatus of the present invention;
FIG. 4 is a schematic cross-sectional view of a structural screen apparatus of the present invention;
FIG. 5 is a schematic view of a transmission of the present invention;
FIG. 6 is a schematic cross-sectional view of a transmission constructed in accordance with the present invention;
FIG. 7 is a schematic view of the position of the connection between the transmission plate and the transmission spring according to the present invention;
FIG. 8 is a schematic diagram of the actual rotational speed of the structure of the present invention.
In the figure: 1. a base; 2. a stone storage tank; 3. a support; 4. a sand blocking plate; 5. a sleeve; 6. a blanking hole; 7. a discharging pipe; 8. a screen device; 81. a connecting plate; 82. primary screening rods; 83. an inner fixing plate; 84. fixing the rod; 85. screening a screen; 86. an outer fixing plate; 9. a transmission device; 91. a drive plate; 92. a limiting shaft sleeve; 93. a limiting rotating shaft; 94. a spring seat; 95. a transmission spring; 10. cushion blocks; 11. a power machine; 12. and (5) separating the sand.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a sand screening device for construction engineering comprises a base 1, a stone storage groove 2 is fixedly installed at a position close to one end of the top of the base 1, a bracket 3 is fixedly installed at a position close to the stone storage groove 2 at the top of the base 1, a sand blocking plate 4 is fixedly installed at the top of the bracket 3, the sand blocking plate 4 is in a circular truncated cone shape, a sleeve 5 is fixedly installed at one end with a smaller caliber of the sand blocking plate 4, a blanking hole 6 is formed at the top of the sleeve 5, a blanking pipe 7 is fixedly installed at a position on the outer surface of the sleeve 5 and at the top of the blanking hole 6, a screen device 8 is movably adjusted inside the sleeve 5, a transmission device 9 is fixedly installed at one end of the screen device 8, a cushion block 10 is fixedly installed at a position close to the other end of the top of the base 1, a power machine 11 is fixedly installed at the top of the cushion block 10, one end of an output shaft of the power machine 11 is fixedly connected with one end of the transmission device 9, the sand separating plate 12 is fixedly arranged at the top of the base 1 and at the position right below the screen device 8, and the cross section of the sand separating plate 12 is triangular.
Referring to fig. 1-2, the axes of the sand-blocking plate 4, the sleeve 5, the screen device 8, the transmission device 9 and the power machine 11 are all on the same central line, so that sand thrown out from the top of the screen device 8 by the screen device 8 in the process of rotating at a speed greater than n is blocked by the sand-blocking plate 4 and falls off from the two sides of the screen device 8 to the top of the sand-separating plate 12, thereby avoiding the waste of labor force caused by subsequent concentration due to the fact that the sand thrown out from the top of the screen device 8 cannot be concentrated and scattered everywhere, and reducing the use cost of the device.
Referring to fig. 1-2, the generatrix of the outer surface of the screen device 8 at the bottom is parallel to the plane of the top of the base 1, and the generatrix of the outer surface of the screen device 8 at the top is at an angle of thirty degrees to the plane of the top of the base 1.
Referring to fig. 1-4, the screen device 8 includes a connection plate 81, a transmission device 9 is fixedly installed on one side of the connection plate 81, a primary screen rod 82 is fixedly installed on the other side of the connection plate 81, and the primary screen rods 82 are distributed in an annular array manner, so that sand material can pass through the primary screen of the primary screen rod 82 before entering the screen device 8, and the screen 85 is prevented from being damaged due to large-sized stones entering the inside of the screen device 8, thereby prolonging the service life of the device, an included angle between the axis of the primary screen rod 82 and the plane on one side of the connection plate 81 is fifteen degrees, an inner fixing plate 83 is fixedly installed on one end of the primary screen rod 82, the connection plate 81 and the inner fixing plate 83 are movably sleeved inside the sleeve 5, a fixing rod 84 is fixedly installed on one end of the inner fixing plate 83, the fixing rods 84 are distributed in an annular array manner, a screen 85 is fixedly installed on one side of the fixing rod 84, and the screen 85 and the fixing rod 84 are connected with each other to form a circular truncated cone-shaped structure, one end of the fixing rod 84 is fixedly provided with an outer fixing plate 86, the inner wall of the outer fixing plate 86 is fixedly provided with a balancing weight 87, and the balancing weight 87 corresponds to the transmission device 9.
Referring to fig. 4-8, the transmission device 9 includes a transmission plate 91, one side of the transmission plate 91 is fixedly connected to the connection plate 81, a limiting shaft sleeve 92 is fixedly installed at a position of the other side of the transmission plate 91 at the center, a limiting rotation shaft 93 is movably sleeved inside the limiting shaft sleeve 92, one end of the limiting rotation shaft 93 is fixedly installed with a spring seat 94, a transmission spring 95 is fixedly installed at a position of one side of the spring seat 94 and outside the limiting rotation shaft 93, and one end of the transmission spring 95 is fixedly connected to the transmission plate 91, so that the transmission plate 91 is not rigidly connected to the spring seat 94, a torque formed by rotation of the spring seat 94 during rotation of the spring seat 94 driven by the power machine 11 is released by the transmission spring 95 and cannot be completely transmitted to the transmission plate 91, and the rotation speeds of the transmission plate 91 and the screen device 8 are always unequal to the rotation speed of the power machine 11, if the connection point of the transmission spring 95 and the transmission plate 91 is located at the bottom of the transmission plate 91 (i.e., the position of the point a shown in fig. 7), the direction of the torque is oriented in the horizontal leftward direction in fig. 7, and the direction of the gravity forms an included angle of ninety degrees with the direction of the torque, so that the gravity does not hinder the rotation of the transmission plate 91, if the connection point of the transmission spring 95 and the transmission plate 91 along with the rotation of the transmission plate 91 is located at the left side of the transmission plate 91 (i.e., the position of the point B shown in fig. 7), the direction of the torque is oriented in the vertical upward direction in fig. 7, and the direction of the gravity forms an included angle of one hundred eighty degrees with the direction of the torque, the resistance is the greatest and the rotation speed is the slowest, so that the rotation speed is reduced and less than n in the process of rotating from the point a to the point B, if the connection point of the transmission spring 95 and the transmission plate 91 along with the rotation of the transmission plate 91 is located at the top of the transmission plate 91 (i.e., the position of the point C shown in fig. 7), at this time, the torque direction is directed to the horizontal rightward direction in fig. 7, and the gravity direction forms a ninety degree angle with the torque direction, so that the gravity does not hinder the rotation of the transmission plate 91, and the rotation speed is increased and less than n in the process of rotating from the point B to the point C, if the connection point of the transmission plate 91 and the transmission spring 95 is located on the right side of the transmission plate 91 (as shown in the position D in fig. 7) along with the rotation of the transmission plate 91, and the torque direction is directed to the vertical downward direction in fig. 7, and the gravity direction forms a zero degree angle with the torque direction, the resultant force of the torque and the gravity is maximum and the rotation speed is fastest, so that the rotation speed is increased and greater than n in the process of rotating from the point C to the point D, and if the connection point of the transmission spring 95 and the transmission plate 91 is located on the bottom of the transmission plate 91 again (as shown in fig. 7), so that the rotation speed is decreased and greater than n in the process of rotating from the point D to the point a, the half-way rotating speed is larger than n in the whole rotating process, the other half-way rotating speed is smaller than n, because the rotating speed output by the power machine 11 is n and the sand inside the screen device 8 synchronously rotates with the screen device 8 under the action of centrifugal force when the rotating speed of the screen device 8 reaches n, the half-way rotating speed is smaller than n, the sand can roll upwards at the bottom of the inner cavity of the screen device 8 to screen the sand, the half-way rotating speed is larger than n, the sand can rotate along with the screen device 8 under the action of centrifugal force, at the moment, an included angle of thirty degrees is kept between a bus at the top of the outer surface of the screen device 8 and the plane at the top of the base 1, large-sized stones cannot move towards one side with a larger pipe diameter under the action of the centrifugal force, and small-sized sands slide under the action of the component force of the centrifugal force and pass through the screen 85 to be screened out, therefore, sand grains can be better screened out from the inside of the screen device 8, the sand screening efficiency of the device is improved, meanwhile, unqualified stones in the sand grains can continuously move to one side with a larger caliber along with the rotation of the screen device 8, and finally are discharged from the screen device 8 and fall into the stone storage groove 2, the problem that the sand screening efficiency of a traditional sand screening machine is continuously reduced due to the fact that a large number of stones are remained in the traditional sand screening machine due to the adoption of a cylindrical sand screening net is avoided, the running stability of the device is improved, an included angle of thirty degrees is kept between a bus located at the top of the outer surface of the screen device 8 and a plane located at the top of the base 1, the other side of the spring seat 94 is fixedly connected with one end of an output shaft of the power machine 11, and the connection position between the transmission spring 95 and the transmission plate 91 corresponds to the balancing weight 87.
Referring to fig. 1-2, when the power machine 11 outputs n rotation speed and the rotation speed of the screen device 8 reaches n, the sand inside rotates synchronously with the screen device 8 under the action of centrifugal force.
The using method of the invention is as follows:
in the using process, the sand material passes through the primary screen of the primary screen rod 82 before entering the screen device 8, the power machine 11 drives the spring seat 94 to rotate so as to drive the transmission spring 95 to rotate, thereby driving the transmission plate 91 and the screen device 8 to rotate, because the transmission plate 91 is not in rigid connection with the spring seat 94, the torque formed by the rotation of the spring seat 94 in the process that the power machine 11 drives the spring seat 94 to rotate can be released through the transmission spring 95 and can not be completely transmitted to the transmission plate 91, so that the rotating speeds of the transmission plate 91 and the screen device 8 are always unequal to the rotating speed of the power machine 11, if the connection point of the transmission spring 95 and the transmission plate 91 is positioned at the bottom of the transmission plate 91 (as shown in the position of a shown in fig. 7), at this time, the torque direction is in the horizontal leftward direction in fig. 7, and the gravity direction forms a ninety degrees angle with the torque direction, so that gravity does not hinder the rotation of the transmission plate 91, if the connection point of the transmission spring 95 and the transmission plate 91 along with the rotation of the transmission plate 91 is located at the left side of the transmission plate 91 (as shown in the position of point B in fig. 7), at this time, the torque direction is directed in the vertical upward direction in fig. 7, and the gravity direction and the torque direction form an included angle of one hundred eighty degrees, at this time, the resistance is maximum, and the rotation speed is slowest, so that the rotation speed is reduced and less than n in the process of rotating from point a to point B, if the connection point of the transmission spring 95 and the transmission plate 91 along with the rotation of the transmission plate 91 is located at the top of the transmission plate 91 (as shown in the position of point C in fig. 7), at this time, the torque direction is directed in the horizontal right direction in fig. 7, and the gravity direction and the torque direction form an included angle of ninety degrees, so that gravity does not hinder the rotation of the transmission plate 91 from point B to point C, so that the rotation speed is increased and the rotation speed is less than n in the process of rotating from point B to point C, if the connection point of the transmission spring 95 and the transmission plate 91 is located on the right side of the transmission plate 91 (as shown in the position D in fig. 7) along with the rotation of the transmission plate 91, the torque direction is directed to the vertically downward direction in fig. 7, and the gravity direction forms a zero-degree included angle with the torque direction, at this time, the resultant force of the torque and the gravity is the largest and the rotating speed is the fastest, so that the rotating speed is increased and is greater than n in the process of rotating from the point C to the point D, if the connection point of the transmission spring 95 and the transmission plate 91 along with the rotation of the transmission plate 91 is located at the bottom of the transmission plate 91 again (as shown in the position a in fig. 7), so that the rotating speed is decreased and is greater than n in the process of rotating from the point D to the point a, so that half-way rotating speed is greater than n in the whole rotating process, and the half-way rotating speed is less than n, because the rotating speed output by the power machine 11 and the rotating speed of the screen device 8 reaches n, the internal sand rotates synchronously with the screen device 8 under the action of centrifugal force, so that the half-way rotating speed is less than n, the sand and stone can roll up at the bottom of the inner cavity of the screen device 8 to screen the sand and stone, the half-way rotating speed is greater than n, the sand and stone can rotate along with the screen device 8 under the action of centrifugal force, at the moment, an included angle of thirty degrees is kept between a bus positioned at the top of the outer surface of the screen device 8 and a plane where the top of the base 1 is positioned, so that large-sized stones cannot pass through the screen 85 and move toward the side having a larger pipe diameter by the component force of the centrifugal force, while small particles of sand slide through the screen 85 and are screened out under the component force of the centrifugal force, so that sand particles can be better screened out from the inside of the screen device 8, and sand thrown out of the top of the screen device 8 by the screen device 8 in the process that the rotating speed is greater than n can be blocked by the sand blocking plate 4 and slide to the top of the sand separating plate 12 from two sides of the screen device 8.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a grit sieving mechanism that building engineering used, includes base (1), its characterized in that: the sand storage device is characterized in that a stone storage groove (2) is fixedly mounted at the position, close to one end, of the top of the base (1), a support (3) is fixedly mounted at the position, close to the stone storage groove (2), of the top of the base (1), a sand blocking plate (4) is fixedly mounted at the top of the support (3), the sand blocking plate (4) is in a round table shape, a sleeve (5) is fixedly mounted at one end, with a smaller caliber, of the sand blocking plate (4), a blanking hole (6) is formed in the top of the sleeve (5), a blanking pipe (7) is fixedly mounted at the position, located at the top of the blanking hole (6), of the outer surface of the sleeve (5), a screen device (8) is movably adjusted in the sleeve (5), a transmission device (9) is fixedly mounted at one end of the screen device (8), and a cushion block (10) is fixedly mounted at the position, close to the other end, of the top of the base (1), the sand separating device is characterized in that a power machine (11) is fixedly mounted at the top of the cushion block (10), one end of an output shaft of the power machine (11) is fixedly connected with one end of a transmission device (9), a sand separating plate (12) is fixedly mounted at the top of the base (1) and at a position right below the screen device (8), and the cross section of the sand separating plate (12) is triangular.
2. The sand screening device for the constructional engineering according to claim 1, wherein: the axes of the sand blocking plate (4), the sleeve (5), the screen device (8), the transmission device (9) and the power machine (11) are all on the same central line.
3. The sand screening device for the constructional engineering according to claim 1, wherein: the bus at the bottom of the outer surface of the screen device (8) is parallel to the plane at the top of the base (1), and the bus at the top of the outer surface of the screen device (8) and the plane at the top of the base (1) form an included angle of thirty degrees.
4. The sand screening device for the constructional engineering according to claim 1, wherein: the screen device (8) comprises a connecting plate (81), a transmission device (9) is fixedly mounted on one side of the connecting plate (81), a primary screening rod (82) and the primary screening rod (82) are fixedly mounted on the other side of the connecting plate (81) and distributed in an annular array mode, an included angle between the axis of the primary screening rod (82) and the plane on one side of the connecting plate (81) is fifteen degrees, an inner fixing plate (83) is fixedly mounted at one end of the primary screening rod (82), the connecting plate (81) and the inner fixing plate (83) are movably sleeved in the sleeve (5), a fixing rod (84) and the fixing rod (84) are fixedly mounted at one end of the inner fixing plate (83) and distributed in the annular array mode, a screen (85) and the fixing rod (84) are fixedly mounted on one side of the fixing rod (84), connected with each other and form a circular truncated cone-shaped structure, one end of the fixing rod (84) is fixedly provided with an outer fixing plate (86), the inner wall of the outer fixing plate (86) is fixedly provided with a balancing weight (87), and the balancing weight (87) corresponds to the transmission device (9).
5. The sand screening device for the constructional engineering according to claim 4, wherein: the transmission device (9) comprises a transmission plate (91), one side of the transmission plate (91) is fixedly connected with the connecting plate (81), the other side of the transmission plate (91) is located at the center, a limiting shaft sleeve (92) is fixedly mounted on the position, at the center, of the other side of the transmission plate (91), a limiting rotating shaft (93) is movably sleeved inside the limiting shaft sleeve (92), a spring seat (94) is fixedly mounted at one end of the limiting rotating shaft (93), a transmission spring (95) and one end of the transmission spring (95) are fixedly connected with the transmission plate (91) on the position, at one side of the spring seat (94), located on the outer side of the limiting rotating shaft (93), of the transmission spring (95) and the other end of an output shaft of the power machine (11), and the connection position between the transmission spring (95) and the transmission plate (91) corresponds to the balancing weight (87).
6. The sand screening device for the constructional engineering according to claim 1, wherein: the rotating speed output by the power machine (11) is n, and when the rotating speed of the screen device (8) reaches n, the sand and stones inside the screen device (8) synchronously rotate with the screen device (8) under the action of centrifugal force.
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| CN202111270170.8A CN114042616B (en) | 2021-10-29 | 2021-10-29 | Grit sieving mechanism that building engineering used |
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| CN202111270170.8A CN114042616B (en) | 2021-10-29 | 2021-10-29 | Grit sieving mechanism that building engineering used |
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| CN202951622U (en) * | 2012-10-15 | 2013-05-29 | 山东鲁一机械有限公司 | Rotary screen |
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| CN108655007A (en) * | 2018-07-10 | 2018-10-16 | 杨永红 | A kind of hydraulic engineering construction sand screening installation |
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| CN210449783U (en) * | 2019-06-01 | 2020-05-05 | 西安科技大学 | A simple open-air sand screening machine for civil engineering |
| CN211707326U (en) * | 2019-11-21 | 2020-10-20 | 武汉田田药业有限公司 | Dregs of a decoction screening filter equipment |
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2021
- 2021-10-29 CN CN202111270170.8A patent/CN114042616B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202951622U (en) * | 2012-10-15 | 2013-05-29 | 山东鲁一机械有限公司 | Rotary screen |
| CN203209296U (en) * | 2013-04-08 | 2013-09-25 | 赛铂(广州)机电科技有限公司 | Multistage rotary screening machine |
| CN208066706U (en) * | 2018-01-23 | 2018-11-09 | 新昌县舍典农业开发有限公司 | A kind of drum type sand screening machine |
| CN108655007A (en) * | 2018-07-10 | 2018-10-16 | 杨永红 | A kind of hydraulic engineering construction sand screening installation |
| CN210449783U (en) * | 2019-06-01 | 2020-05-05 | 西安科技大学 | A simple open-air sand screening machine for civil engineering |
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| CN114042616B (en) | 2023-01-24 |
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