CN111151445A - Civil engineering concrete mixer gravel particle size screening installation - Google Patents
Civil engineering concrete mixer gravel particle size screening installation Download PDFInfo
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- CN111151445A CN111151445A CN202010172366.2A CN202010172366A CN111151445A CN 111151445 A CN111151445 A CN 111151445A CN 202010172366 A CN202010172366 A CN 202010172366A CN 111151445 A CN111151445 A CN 111151445A
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- 238000012216 screening Methods 0.000 title claims abstract description 102
- 239000002245 particle Substances 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title claims description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 244000309464 bull Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 239000004576 sand Substances 0.000 description 1
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Classifications
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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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling 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
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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 field of civil engineering concrete mixing, in particular to a gravel particle size screening device of a civil engineering concrete mixer, which is provided with a feed inlet and a discharge outlet which are provided with frustum-shaped openings, wherein the shape and the size of the top end of the feed inlet are smaller than those of the bottom end of the feed inlet, and the shape and the size of the bottom end of the discharge outlet are smaller than those of the top end of the discharge outlet, so that gravel can conveniently enter and exit, a motor is used for driving a rotating rod to rotate through the arrangement of a first rotating groove, a second rotating groove, a first bearing, a second bearing and a rotating rod, the gravel is buffered and scattered before falling into a screening box and reaching a screening mechanism, so that the gravel can be conveniently screened, three groups of filter screens with different calibers can be used for multistage screening the gravel, the effect of gravel screening is improved, meanwhile, the mounting groove is, the filter screen is convenient to clean.
Description
Technical Field
The invention relates to the field of civil engineering concrete mixing, in particular to a gravel particle size screening device of a civil engineering concrete mixer.
Background
Civil engineering is a general term for scientific technology for building various land engineering facilities. It refers to both the materials, equipment used and the technical activities carried out such as surveying, designing, construction, maintenance, repair, etc., as well as the objects of engineering construction. I.e. various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage and protection projects, which are built on or under the ground, on land and directly or indirectly serve human life, production, military affairs and scientific research. In the civil engineering construction process, concrete is an important construction material, and the concrete is artificial stone which is prepared by using cement as a main cementing material, mixing water, sand, stones and chemical additives and mineral admixtures as necessary according to a proper proportion, uniformly stirring, densely forming, curing and hardening, and is widely applied to civil engineering. In the process of prefabricating the concrete, a plurality of working procedures are required, and strict requirements on the particle size of stones, gravels and the like are met, otherwise, the production quality of the concrete cannot meet the use requirements.
Application number is CN 201821447632.2's utility model for closest prior art, and disclose civil engineering concrete mixer gravel particle size screening installation, including the drive case, the dead axle rotates on the drive case to be connected with the pivot, has set gradually the third through the support under to from last on the drive case and has sieved the charging tray, second sieve charging tray and first sieve charging tray, be provided with respectively in the pivot with third sieve charging tray, the kickoff that second sieve charging tray and first sieve charging tray correspond, be provided with on the drive case and be used for shaking the material mechanism that shakes that prevents the jam to third sieve charging tray and second sieve charging tray. This civil engineering concrete mixer grit diameter screening installation utilizes from last to carrying out the classifying screen material to a plurality of sieve charging trays down to realize the screening of grit diameter, simple structure, convenient operation, shake the material mechanism and hit the sieve charging tray that will block up in the screen hole gravel shake out to corresponding, keep the high-efficient use that lasts of sieve charging tray, and help shaking the grit with higher speed from the sieve charging tray and improve screening efficiency. However, use the device to carry out concrete mixer gravel particle size screening, utilize the mode of shake to carry out supplementary screening, the device is in open environment, can produce the pollution to external environment in the use, the installation and the change of the screen cloth of being not convenient for simultaneously.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a civil engineering concrete mixer gravel particle size screening device which can solve the problems that auxiliary screening is carried out in a shaking mode, the device is in an open environment, the external environment is polluted in the using process, and meanwhile, the screen is inconvenient to install and replace.
The invention is realized by the following technical scheme:
the civil engineering concrete mixer gravel particle size screening device comprises a screening box, wherein a feed inlet is formed in the center of the top end of the screening box, a discharge outlet is formed in the center of the bottom end of the screening box, a square protective ring plate is fixed in the center of the bottom end of an inner cavity of the screening box, a mounting groove is formed in the inner wall of the square protective ring plate and comprises two sets of symmetrical side slots, a set of rear slots and a front slot, the side slots, the rear slots and the front slot are communicated and arranged, the front slot penetrates through the square protective ring plate, a first rotary groove is formed in the surface of the rear slot in the inner wall of the square protective ring plate, a second rotary groove is formed in the surface of the front slot in the inner wall of the square protective ring plate and is opposite to the first rotary groove, the second rotary groove penetrates through the square protective ring plate, a first bearing is arranged in the first rotary groove, and a second bearing is arranged in the, the utility model discloses a screening box, including first bearing, runner table wall, screening incasement wall, motor output end fixed connection runner, screening case lateral wall and mounting groove, the runner table wall is provided with the projection, be fixed with the motor on the screening incasement wall, motor output end fixed connection runner, the location cooperation that screening case lateral wall just is to the mounting groove has been seted up and has been run through the groove, the inside screening mechanism that pegs graft of mounting groove, screening mechanism is including square ring frame board and filter screen, hidden groove has been seted up at square ring frame board inner wall center, hidden inslot portion is fixed with ring oscillator, square ring frame board lateral wall symmetry is fixed with two sets of connecting rods, it has the fixed plate to peg graft through inslot portion, the fixed plate side is seted up with connecting rod complex spread groove, fixed plate outer wall center is fixed with the handle.
As a further improvement of the scheme, the feed inlet and the discharge outlet are both frustum-shaped openings, the shape and the size of the top end of the feed inlet are smaller than those of the bottom end of the feed inlet, the shape and the size of the top end of the discharge outlet are equal to those of the top end of the feed inlet, and the shape and the size of the bottom end of the discharge outlet are smaller than those of the top end of the discharge outlet.
As a further improvement of the above scheme, the height of the square protection ring plate is equal to the height of the inner cavity of the screening box, the shape and size of the horizontal section of the square protection ring plate are equal to the shape and size of the bottom end of the feed inlet, and the shape and size of the horizontal section of the square protection ring plate are smaller than the shape and size of the horizontal section of the inner cavity of the screening box.
As a further improvement of the scheme, the first rotary grooves are arranged on the side wall of the square protective ring plate at equal intervals, the second rotary grooves are matched with the first rotary grooves, the first bearings and the second bearings are sealing bearings, and the convex columns are uniformly arranged on the surface wall of the rotary rod in the circumferential direction.
As a further improvement of the scheme, the three groups of mounting grooves are arranged in the center of the side wall of the square protection ring plate at equal intervals, the three groups of penetrating grooves are arranged in the center of the side wall of the screening box at equal intervals, and each group of penetrating grooves are uniform and a group of mounting grooves are opposite.
As a further improvement of the above scheme, the shape and size of the square ring frame plate is equal to that of the mounting groove, the height of the filter screen is equal to that of the square ring frame plate, and the filter screen calibers in the screening mechanisms in the mounting grooves are different and are sequentially reduced from top to bottom.
As a further improvement of the above scheme, the width of the fixing plate is equal to the minimum vertical distance from the outer side surface of the through groove to the side surface of the mounting groove, the length of the fixing plate is equal to the length of the through groove, the depth of the connecting groove is greater than one half of the length of the connecting rod, and the height of the limiting plate is greater than the height of the fixing plate.
As a further improvement of the scheme, the limiting plates are symmetrically arranged by taking the centers of the outer side surfaces of the fixing plates as symmetrical centers, the outer side surfaces of the limiting plates and the surfaces of the handles are both provided with anti-slip pads, and the inner side surfaces of the limiting plates and the inner side surfaces of the fixing plates are friction surfaces.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging three sets of mounting grooves and three sets of screening mechanisms, and utilizing three sets of filter screens with different calibers, the gravel can be screened in multiple stages, so that the gravel screening effect is improved, and meanwhile, the mounting grooves enable the screening mechanisms to be inserted and fixed in the mounting grooves, so that the mounting and dismounting of the screening mechanisms are facilitated, and the filter screens are convenient to clean; through setting up fixed plate and limiting plate, utilize to rotate to connect and carry out spacing fixed at the limiting plate of screening case lateral wall to the fixed plate to fix screening mechanism.
2. According to the gravel screening device, the first rotating groove, the second rotating groove, the first bearing, the second bearing and the rotating rod are arranged, the rotating rod is driven to rotate by the motor, gravel is buffered and broken up before falling into the screening box and reaching the screening mechanism, and screening of the gravel is facilitated.
3. According to the invention, the feeding hole and the discharging hole are arranged to be frustum-shaped openings, the shape and the size of the top end of the feeding hole are smaller than those of the bottom end of the feeding hole, and the shape and the size of the bottom end of the discharging hole are smaller than those of the top end of the discharging hole, so that gravel can enter and exit conveniently.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of a square guard ring structure according to the present invention;
FIG. 4 is an enlarged view of part A of the present invention;
FIG. 5 is a schematic view of a rotating rod according to the present invention;
fig. 6 is a schematic structural view of a fixing plate according to the present invention.
The device comprises a screening box 1, a feeding port 2, a discharging port 3, a square protective ring plate 4, a side slot 5, a rear slot 6, a front slot 7, a first rotary groove 8, a second rotary groove 9, a first bearing 10, a second bearing 11, a rotary rod 12, a convex column 13, a motor 14, a penetrating groove 15, a square ring frame plate 16, a hidden groove 17, an annular oscillator 18, a filter screen 19, a connecting rod 20, a fixing plate 21, a connecting groove 22, a handle 23 and a limiting plate 24.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
The technical scheme of the invention is further explained by combining the attached drawings.
Example one
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a civil engineering concrete mixer gravel particle size screening device comprises a screening box 1, a feed inlet 2 is arranged at the center of the top end of the screening box 1, a discharge outlet 3 is arranged at the center of the bottom end of the screening box 1, the feed inlet 2 and the discharge outlet 3 are both frustum-shaped openings, the shape and size of the top end of the feed inlet 2 are smaller than those of the bottom end of the feed inlet 2, the shape and size of the top end of the discharge outlet 3 are equal to those of the top end of the feed inlet 2, and the shape and size of the bottom end of the discharge outlet 3 are smaller than those of the top end of the discharge outlet 3;
a square protection ring plate 4 is fixed at the center of the bottom end of an inner cavity of the screening box 1, the height of the square protection ring plate 4 is equal to that of the inner cavity of the screening box 1, the shape and the size of the horizontal section of the square protection ring plate 4 are equal to that of the bottom end of the feed port 2, the shape and the size of the horizontal section of the square protection ring plate 4 are smaller than those of the inner cavity of the screening box 1, mounting grooves are formed in the inner wall of the square protection ring plate 4, three groups of the mounting grooves are arranged at the center of the side wall of the square protection ring plate 4 at equal intervals, each mounting groove comprises two symmetrical groups of side slots 5, one group of rear slots 6 and a front slot 7, the side slots 5, the rear slots 6 and the front slots 7 are communicated, the front slots 7 penetrate through the square protection ring plate 4, a first rotary groove 8 is formed in the surface where the rear slots 6 are located on the inner wall of the square protection ring plate 4, a second rotary groove 9 is formed in, the first rotary groove 8 is arranged on the side wall of the square protection ring plate 4 at equal intervals, the second rotary groove 9 is matched with the first rotary groove 8, the second rotary groove 9 is arranged through the square protection ring plate 4, the first bearing 10 is arranged in the first rotary groove 8, the second bearing 11 is arranged in the second rotary groove 9, the first bearing 10 and the second bearing 11 are both sealing bearings, the circumference of the convex column 13 is uniformly arranged on the surface wall of the rotary rod 12, the rotary rod 12 is rotatably connected between the first bearing 10 and the second bearing 11, the surface wall of the rotary rod 12 is provided with the convex column 13, the inner wall of the screening box 1 is fixed with the motor 14, the output end of the motor 14 is fixedly connected with the rotary rod 12, through arranging the first rotary groove 8, the second rotary groove 9, the first bearing 10, the second bearing 11 and the rotary rod 12, the rotary rod 12 is driven to rotate by the motor 14, before the gravel falls into the screening box 1 and reaches the screening mechanism, the gravel is buffered and broken up, so that the gravel is conveniently screened;
the side wall of the screening box 1 is provided with through grooves 15 in a matching manner at positions opposite to the mounting grooves, the through grooves 15 are three groups of through grooves 15, the centers of the side walls of the screening box 1 are arranged at equal intervals, each group of through grooves 15 is uniform, and one group of mounting grooves are opposite, a screening mechanism is inserted in each mounting groove and comprises a square ring frame plate 16 and a filter screen 19, the shape and size of the square ring frame plate 16 are equal to the shape and size of the mounting groove, the height of the filter screen 19 is equal to the height of the square ring frame plate 16, the diameters of the filter screens 19 in the screening mechanisms in the three groups of mounting grooves are different and are sequentially reduced from top to bottom, a hidden groove 17 is formed in the center of the inner wall of the square ring frame plate 16, an annular oscillator 18 is fixed in the hidden groove 17, the screening mechanism is oscillated by the oscillator 18, and by the arrangement of the three groups of mounting, meanwhile, the installation groove is formed, so that the screening mechanism is inserted and fixed in the installation groove, the screening mechanism is convenient to install and detach, and the filter screen 19 is convenient to clean.
Example two
The second embodiment is a further improvement on the first embodiment.
As shown in fig. 1, 5 and 6, two groups of connecting rods 20 are symmetrically fixed on the outer side wall of the square ring frame plate 16, a fixing plate 21 is inserted into the through groove 15, the width of the fixing plate 21 is equal to the minimum vertical distance from the outer side surface of the through groove 15 to the side surface of the mounting groove, the length of the fixing plate 21 is equal to the length of the through groove 15, a connecting groove 22 matched with the connecting rod 20 is formed in the side surface of the fixing plate 21, the depth of the connecting groove 22 is greater than one half of the length of the connecting rod 20, a handle 23 is fixed at the center of the outer wall of the fixing plate 21, a limiting plate 24 is rotatably connected to the side wall of the screening box 1, the height of the limiting plate 24 is greater than the height of the fixing plate 21, the limiting plates 24 are symmetrically arranged with the center of the outer side surface of the, the fixed plate 21 is limited and fixed by the limiting plate 24 which is rotatably connected to the side wall of the screening box 1, so that the screening mechanism is fixed.
When in use, gravel falls into the screening box 1 from the feed port 2, firstly passes through the upper part of the first screening mechanism, before reaching the first screening mechanism, the rotating rod 12 is driven by the motor 14 to rotate, the gravel is buffered and broken up by the convex column 13, the screening of the screening mechanism is convenient, meanwhile, the gravel is prevented from causing larger impact on the screening mechanism, when the gravel reaches the first screening mechanism, preliminary screening is carried out under the vibration action of the oscillator 18 in the ring, the gravel after the first screening continuously falls down, the gravel sequentially passes through the second screening mechanism and the third screening mechanism, the rotating rod 12 is driven by the motor 14 to rotate in the period, the gravel is buffered and broken up by the convex column 13, and finally the gravel is discharged through the discharge port 3, when unqualified gravel in the screening box 1 needs to be cleaned, only the limiting plate 24 needs to be turned open, the fixing plate 21 is pulled out by the handle 23, utilize connecting rod 20 to take out screening mechanism, take out from the bottom up in proper order, unqualified gravel advances to cross discharge gate 3 and discharges. Through the arrangement of the feed inlet 2 and the discharge outlet 3 which are frustum-shaped openings, the shape and the size of the top end of the feed inlet 2 are smaller than those of the bottom end of the feed inlet 2, the shape and the size of the bottom end of the discharge outlet 3 are smaller than those of the top end of the discharge outlet 3, so that gravel can conveniently enter and exit, through the arrangement of the first rotary groove 8, the second rotary groove 9, the first bearing 10, the second bearing 11 and the rotary rod 12, the rotary rod 12 is driven to rotate by the motor 14, before the gravel falls into the screening box 1 and reaches the screening mechanism, the gravel is buffered and scattered, so that the gravel can be conveniently screened, through the arrangement of the fixed plate 21 and the limiting plate 24, the gravel can be screened in multiple stages, the effect of gravel screening is improved, meanwhile, the mounting groove is formed, so that the screening mechanism is inserted and fixed in the mounting groove, so that the mounting and dismounting of the screening mechanism are convenient, the cleaning of the, thereby fixing the screening mechanism.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a civil engineering concrete mixer grit particle size screening installation, includes screening case (1), its characterized in that: the feeding device is characterized in that a feeding hole (2) is formed in the center of the top end of the screening box (1), a discharging hole (3) is formed in the center of the bottom end of the screening box (1), a square protection ring plate (4) is fixed at the center of the bottom end of an inner cavity of the screening box (1), a mounting groove is formed in the inner wall of the square protection ring plate (4), the mounting groove comprises two groups of symmetrical side slots (5), one group of rear slots (6) and a front slot (7), the side slots (5), the rear slots (6) and the front slot (7) are communicated, the front slot (7) penetrates through the square protection ring plate (4), a first rotary groove (8) is formed in the surface where the rear slot (6) is located in the inner wall of the square protection ring plate (4), a second rotary groove (9) is formed in the surface where the front slot (7) is located and is opposite to the first rotary groove (8), the second rotary groove (9) penetrates through the square protective ring plate (4), a first bearing (10) is arranged inside the first rotary groove (8), a second bearing (11) is arranged inside the second rotary groove (9), a rotary rod (12) is rotatably connected between the first bearing (10) and the second bearing (11), a convex column (13) is arranged on the surface wall of the rotary rod (12), a motor (14) is fixed on the inner wall of the screening box (1), the output end of the motor (14) is fixedly connected with the rotary rod (12), a penetrating groove (15) is arranged at the position, right opposite to the mounting groove, of the side wall of the screening box (1) in a matching manner, a screening mechanism is inserted into the mounting groove and comprises a square ring frame plate (16) and a filter screen (19), a hidden groove (17) is arranged at the center of the inner wall of the square ring frame plate (16), and a ring oscillator (18) is fixed inside the hidden groove (17), the square ring frame plate is characterized in that two groups of connecting rods (20) are symmetrically fixed on the outer side wall of the square ring frame plate (16), a fixing plate (21) is inserted into the through groove (15), a connecting groove (22) matched with the connecting rods (20) is formed in the side face of the fixing plate (21), a handle (23) is fixed at the center of the outer wall of the fixing plate (21), and a limiting plate (24) is rotatably connected to the side wall of the screening box (1).
2. The civil engineering concrete mixer gravel particle size screening apparatus of claim 1, wherein: feed inlet (2) and discharge gate (3) are frustum type opening, the shape size on feed inlet (2) top is less than the shape size of feed inlet (2) bottom, the shape size on discharge gate (3) top equals the shape size on feed inlet (2) top, the shape size of discharge gate (3) bottom is less than the shape size on discharge gate (3) top.
3. The civil engineering concrete mixer gravel particle size screening apparatus of claim 2, wherein: the height of the square protective ring plate (4) is equal to the height of the inner cavity of the screening box (1), the shape and the size of the horizontal section of the square protective ring plate (4) are equal to the shape and the size of the bottom end of the feeding port (2), and the shape and the size of the horizontal section of the square protective ring plate (4) are smaller than the shape and the size of the horizontal section of the inner cavity of the screening box (1).
4. The civil engineering concrete mixer gravel particle size screening apparatus of claim 1, wherein: first runner (8) equidistant setting is in square protection crown plate (4) lateral wall, second runner (9) cooperation first runner (8) set up, first bearing (10) and second bearing (11) are sealed bearing, projection (13) circumference evenly sets up at bull stick (12) table wall.
5. The civil engineering concrete mixer gravel particle size screening apparatus of claim 1, wherein: the mounting grooves are arranged in the centers of the side walls of the square protective ring plates (4) in three groups at equal intervals, the through grooves (15) are arranged in the centers of the side walls of the screening boxes (1) in three groups at equal intervals, and each group of through grooves (15) are evenly arranged in a group of mounting grooves in a right-opposite mode.
6. The civil engineering concrete mixer gravel particle size screening apparatus of claim 5, wherein: the shape size of square ring frame board (16) equals the shape size of mounting groove, the height that highly equals square ring frame board (16) of filter screen (19), three groups filter screen (19) bore difference and top-down in the screening mechanism in the mounting groove diminish in proper order.
7. The civil engineering concrete mixer gravel particle size screening apparatus of claim 1, wherein: the width of the fixing plate (21) is equal to the minimum vertical distance from the outer side surface of the through groove (15) to the side surface of the mounting groove, the length of the fixing plate (21) is equal to the length of the through groove (15), the depth of the connecting groove (22) is greater than one half of the length of the connecting rod (20), and the height of the limiting plate (24) is greater than the height of the fixing plate (21).
8. The civil engineering concrete mixer gravel particle size screening apparatus of claim 1, wherein: the limiting plates (24) are symmetrically arranged by taking the centers of the outer side surfaces of the fixing plates (21) as symmetric centers, the outer side surfaces of the limiting plates (24) and the surfaces of the handles (23) are respectively provided with an anti-slip pad, and the inner side surfaces of the limiting plates (24) and the inner side surfaces of the fixing plates (21) are friction surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172366.2A CN111151445A (en) | 2020-03-12 | 2020-03-12 | Civil engineering concrete mixer gravel particle size screening installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172366.2A CN111151445A (en) | 2020-03-12 | 2020-03-12 | Civil engineering concrete mixer gravel particle size screening installation |
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| CN111151445A true CN111151445A (en) | 2020-05-15 |
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| CN202010172366.2A Pending CN111151445A (en) | 2020-03-12 | 2020-03-12 | Civil engineering concrete mixer gravel particle size screening installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324227A (en) * | 2020-11-23 | 2021-02-05 | 张冬晓 | Energy-saving multifunctional intelligent electric pole |
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