阅读说明：本技术 一种工程建设用筛沙装置 (Engineering construction is with screening sand device ) 是由 柳长江 于 2020-05-04 设计创作，主要内容包括：本发明公开了一种工程建设用筛沙装置,具体涉及工程建设设备领域,包括机架,所述机架的内侧固定安装有下端座,且机架的另一端焊接有进料室,所述进料室的两侧外侧壁分别固定设有上端座和进料斗,所述上端座和下端座之间设有筛笼,所述机架位于筛笼下方设有输送带,且输送带与筛笼固定连接同一驱动组件；所述进料室的顶端固定设有驱动电机,所述驱动电机的驱动端固定连接有第一皮带轮组,所述第一皮带轮组的主动端和从动端均固定设有导流推杆,且导流推杆的外表面焊接有推板。本发明中,通过对进料处的设计,使得该装置可避免沙石混合物进料时造成进料处的堵塞问题,保证筛沙操作的顺利进行,提高了筛沙工作效率。(The invention discloses a sand screening device for engineering construction, and particularly relates to the field of engineering construction equipment, which comprises a rack, wherein a lower end seat is fixedly arranged on the inner side of the rack, a feeding chamber is welded at the other end of the rack, the outer side walls of two sides of the feeding chamber are respectively and fixedly provided with an upper end seat and a feeding hopper, a screen cage is arranged between the upper end seat and the lower end seat, a conveying belt is arranged below the screen cage on the rack, and the conveying belt and the screen cage are fixedly connected with a same driving assembly; the top of feed chamber is fixed and is equipped with driving motor, driving motor's the first pulley group of drive end fixedly connected with, the drive end and the driven end of first pulley group are all fixed and are equipped with the water conservancy diversion push rod, and the outer surface welding of water conservancy diversion push rod has the push pedal. According to the sand screening device, due to the design of the feeding part, the problem of blockage of the feeding part caused by feeding of a sand-stone mixture can be solved, the smooth operation of sand screening is ensured, and the sand screening work efficiency is improved.)

1. The utility model provides a screening sand device for engineering construction, includes frame (1), its characterized in that: a lower end seat (2) is fixedly arranged on the inner side of the frame (1), a feeding chamber (5) is welded at the other end of the frame (1), the outer side walls of the two sides of the feeding chamber (5) are respectively and fixedly provided with an upper end seat (4) and a feeding hopper (6), a screen cage (3) is arranged between the upper end seat (4) and the lower end seat (2), and the two ends of the screen cage (3) along the transverse direction are both provided with connecting ends (18), the upper end seat (4) and the lower end seat (2) have the same structure, and the inner side walls are respectively provided with rolling bearings (14) which are sleeved with the connecting ends (18), the connecting ends (18) at the two ends of the screen cage (3) are respectively provided with a feed inlet (19) and a large-particle discharge outlet (20), a conveyer belt (8) is arranged below the screen cage (3) of the frame (1), the conveying belt (8) and the screen cage (3) are fixedly connected with the same driving component;

the both sides of feed chamber (5) link up with feeder hopper (6) and feed inlet (19) mutually respectively, and the fixed driving motor (9) that is equipped with in top of feed chamber (5), the first pulley group (10) of drive end fixedly connected with of driving motor (9), the drive end and the driven end of first pulley group (10) are all fixed and are equipped with water conservancy diversion push rod (12), and the outer skin weld of water conservancy diversion push rod (12) has push pedal (13).

2. The sand screening device for engineering construction according to claim 1, wherein: and the joints of the diversion push rods (12) and the driving shaft of the driving motor (9) are provided with couplings (11).

3. The sand screening device for engineering construction according to claim 1, wherein: the inner sides of the upper end seat (4) and the lower end seat (2) are provided with mounting holes (21), and the upper end seat (4) and the lower end seat (2) are respectively fixed with the frame (1) and the feeding chamber (5) through the mounting holes (21) by bolts.

4. The sand screening device for engineering construction according to claim 1, wherein: the bottom of upper end seat (4) and lower extreme seat (2) all is the slope setting towards conveyer belt (8).

5. The sand screening device for engineering construction according to claim 4, wherein: the drive assembly sets up conveyer belt (8) including setting up conveyer roller (7) between frame (1) and on conveyer roller (7), the one end external surface of conveyer roller (7) is fixed and is equipped with second pulley group (17).

6. The sand screening device for engineering construction according to claim 5, wherein: the driving end of the second belt pulley set (17) is fixedly provided with a servo motor (15), and an output shaft of the servo motor (15) is fixedly provided with a meshing gear set (16).

7. The sand screening device for engineering construction according to claim 6, wherein: the driven end of the meshing gear set (16) is sleeved with the end part of the screen cage (3).

8. The sand screening device for engineering construction according to claim 1, wherein: the outer side wall of one side of the rack (1) close to the lower end seat (2) is provided with a through hole communicated with the large particle discharge hole (20).

Technical Field

The embodiment of the invention relates to the field of engineering construction equipment, in particular to a sand screening device for engineering construction.

Background

The engineering construction refers to the new construction, the extension and the reconstruction of engineering projects such as building engineering, line pipeline and equipment installation engineering, building decoration and fitment engineering and the like, is a general name of the basic production process for forming fixed assets and other construction works related to the basic production process, sand and stones essential for the infrastructure in the engineering construction need to be screened when being actually used so as to ensure that large-particle sand and stones can be removed so as to ensure the structural stability when the sand and stones are used for the infrastructure construction, and the equipment for screening the sand is called a sand screening machine.

Disclosure of Invention

Therefore, the embodiment of the invention provides a sand screening device for engineering construction, wherein a sand and stone mixture enters a feeding chamber through a feeding chamber and a flow guide push rod, a driving motor is started to drive a first belt pulley group to rotate and then drive two flow guide push rods to rotate, a push plate pushes the sand and stone mixture to enter a screen cage from the feeding port, the accumulation and blockage problems of large-particle sand and stone at the feeding position are avoided, the device can avoid the blockage problem of the feeding position when the sand and stone mixture is fed through the design of the feeding position, the smooth operation of sand screening is ensured, the sand screening working efficiency is improved, the problems that the feeding port of the existing sand screening machine is long and thin, large-particle stones mixed in the sand and stone easily cause the blockage problem of the feeding port, the equipment is stopped, and the smooth operation of a sand screening process is influenced are solved.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a sand screening device for engineering construction comprises a rack, wherein a lower end seat is fixedly mounted on the inner side of the rack, a feeding chamber is welded at the other end of the rack, an upper end seat and a feeding hopper are fixedly arranged on the outer side walls of two sides of the feeding chamber respectively, a screen cage is arranged between the upper end seat and the lower end seat, connecting ends are arranged at two transverse ends of the screen cage respectively, the upper end seat and the lower end seat are consistent in structure, rolling bearings sleeved with the connecting ends are arranged on the inner side walls of the upper end seat and the lower end seat respectively, a feeding hole and a large-particle discharging hole are formed in the connecting ends of two ends of the screen cage respectively, a conveying belt is arranged below the screen cage and fixedly connected;

the both sides of feed chamber link up with feeder hopper and feed inlet respectively mutually, and the fixed driving motor that is equipped with in top of feed chamber, the first belt pulley group of driving motor's drive end fixedly connected with, the drive end and the driven end of first belt pulley group are all fixed and are equipped with the water conservancy diversion push rod, and the outer skin weld of water conservancy diversion push rod has the push pedal.

Furthermore, the joints of the diversion push rods and the driving shaft of the driving motor are provided with couplings.

Further, the inner sides of the upper end seat and the lower end seat are further provided with mounting holes, and the upper end seat and the lower end seat are respectively fixed with the frame and the feeding chamber through the mounting holes by bolts.

Further, the bottom of upper end seat and lower end seat all is to the conveyer belt and is the slope setting.

Further, drive assembly sets up the conveyer belt including setting up the conveying roller between the frame and on the conveying roller, the one end external surface of conveying roller is fixed and is equipped with second pulley group.

Furthermore, a servo motor is fixedly arranged at the driving end of the second belt pulley group, and an output shaft of the servo motor is fixedly provided with a meshing gear group.

Further, the driven end of the meshing gear set is sleeved with the end part of the screen cage.

Furthermore, the outer side wall of one side of the rack, which is close to the lower end seat, is provided with a through hole communicated with the large-particle discharge hole.

The embodiment of the invention has the following advantages:

1. through the feed chamber and the water conservancy diversion push rod that set up, the gravel and sand mixture gets into in the feed chamber, start driving motor and make its first pulley group of drive rotate the back and drive two water conservancy diversion push rods and rotate the back, the push pedal promotes during the gravel and sand mixture gets into the screen cage from the feed inlet, the grit of having avoided great granule is in the accumulation jam problem of feed department, through the design to feed department, cause the jam problem of feed department when making the device can avoid the feeding of gravel and sand mixture, guarantee going on smoothly of screening sand operation, the efficiency of screening sand work is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a front view provided by the present invention;

FIG. 2 is an enlarged view of the portion A in FIG. 1 according to the present invention;

FIG. 3 is a front view of a screen cage assembly provided by the present invention;

FIG. 4 is a side view of a lower end block provided by the present invention;

fig. 5 is a perspective view of the guide push rod provided by the present invention;

in the figure: 1. a frame; 2. a lower end seat; 3. a screen cage; 4. an upper end seat; 5. a feed chamber; 6. a feed hopper; 7. a conveying roller; 8. a conveyor belt; 9. a drive motor; 10. a first pulley set; 11. a coupling; 12. a flow guide push rod; 13. pushing the plate; 14. a rolling bearing; 15. a servo motor; 16. a meshing gear set; 17. a second pulley set; 18. a connecting end; 19. a feed inlet; 20. a large particle discharge port; 21. and (7) installing holes.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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 the attached drawings 1-5 of the specification, the sand sieving device for engineering construction in the embodiment comprises a frame 1, wherein a lower end seat 2 is fixedly installed on the inner side of the frame 1, a feeding chamber 5 is welded at the other end of the frame 1, the outer side walls of two sides of the feeding chamber 5 are respectively and fixedly provided with an upper end seat 4 and a feeding hopper 6, a sieve cage 3 is arranged between the upper end seat 4 and the lower end seat 2, connecting ends 18 are respectively arranged at two transverse ends of the sieve cage 3, the upper end seat 4 and the lower end seat 2 are consistent in structure, the inner side walls of the upper end seat 4 and the lower end seat 2 are respectively provided with a rolling bearing 14 sleeved with the connecting ends 18, the connecting ends 18 at two ends of the sieve cage 3 are respectively provided with a feeding port 19 and a large-particle discharging port 20, a conveyer belt 8 is arranged below the sieve cage;

the both sides of feed chamber 5 link up with feeder hopper 6 and feed inlet 19 respectively mutually, and the fixed driving motor 9 that is equipped with in top of feed chamber 5, the first belt pulley group 10 of driving motor 9's drive end fixedly connected with, the drive end and the driven end of first belt pulley group 10 are all fixed and are equipped with water conservancy diversion push rod 12, and the outer skin weld of water conservancy diversion push rod 12 has push pedal 13.

Furthermore, the joints of the diversion push rods 12 and the driving shaft of the driving motor 9 are provided with couplings 11.

Further, the inner sides of the upper end seat 4 and the lower end seat 2 are further provided with mounting holes 21, and the upper end seat 4 and the lower end seat 2 are respectively fixed with the frame 1 and the feeding chamber 5 through the mounting holes 21 by bolts.

Further, the bottom of upper end seat 4 and lower end seat 2 all is the slope setting towards conveyer belt 8, and the convenient sand grain that falls from sieve cage 3 concentrates the centre department that falls into conveyer belt 8.

Further, the driving assembly comprises conveying rollers 7 arranged between the frames 1, conveying belts 8 are arranged on the conveying rollers 7, and a second belt pulley set 17 is fixedly arranged on the outer surface of one end of each conveying roller 7.

Further, a servo motor 15 is fixedly arranged at the driving end of the second pulley set 17, and a meshing gear set 16 is fixedly arranged at the output shaft of the servo motor 15.

Further, the driven end of the meshing gear set 16 is sleeved with the end of the screen cage 3.

Further, a through hole communicated with the large particle discharge hole 20 is formed in the outer side wall of one side, close to the lower end seat 2, of the rack 1.

In the embodiment of the invention, the specific components of the frame 1 are configured as follows according to mass percentage:

carbon: 0.002% -0.05%, silicon: 0.03% -0.90%, manganese: 0.03% -0.23%, phosphorus: 0.001% -0.003%, sulfur: 0.001% -0.020%, chromium: 12% -20%, nickel: 1% -8%, aluminum: 0.001% -0.2%, nitrogen: 0.001% -0.020%, oxygen: 0.001% -0.015%, copper: 0.001% -8%, tungsten: 0.001% -6%, vanadium: 0.001% -0.8%, niobium: 0.001% -0.30%, calcium: 0.001% -0.10%, magnesium: 0.001% -0.10%, boron: 0.001% -0.020%, molybdenum: 2% -10%, the balance being iron and indispensable impurities;

correspondingly, a coating is sprayed on the metal material, and the coating comprises 3.5 wt% of NiCr, 36.2O36 and the balance of Al2O 3;

the specific smelting process comprises the following steps: according to the normal smelting process of cast steel, melting the components of carbon, manganese, chromium, nickel, vanadium, boron, phosphorus, sulfur, molybdenum and the like according to the formula proportion, discharging, feeding a boron material by using a refining furnace under the condition of introducing argon in the whole process and stirring, and controlling the discharging temperature to be 1600 ℃; feeding the B material of nano-grade powder, and refining by using a furnace after the B material is discharged; casting into a primary part; performing isothermal nitriding treatment on the surface of a primary part at 500 ℃, firstly, preserving heat for 16h, adopting a lower ammonia decomposition rate (18%), namely a nitrogen absorption stage, then improving the ammonia decomposition rate to 35%, preserving heat for 70h, namely a diffusion stage, and finally, performing nitrogen annealing treatment 3h before nitriding is finished, wherein the ammonia decomposition rate is improved to 70%, and the nitrogen annealing temperature is improved to 500 ℃; then plasma spraying the coating on the contact surface of the substrate to finish the process;

in this embodiment, the components of the frame 1 cooperate with each other to improve the corrosion resistance and fatigue resistance of the frame 1. For example, the arrangement of chromium greatly improves the corrosion resistance of a metal material, the manganese element can greatly improve the fatigue performance, the manganese contained in the material can enable accessories to deform uniformly, and meanwhile, cracks can be formed in the whole crystal grains instead of being concentrated at the boundary, on the other hand, the manganese contained is also the resistance of crack propagation, when the tips of the cracks are expanded to a manganese-containing phase, the cracks can deflect, the crack expansion path is increased, and therefore the fracture toughness and the fatigue resistance of the material are improved. The hardenability can be improved by adding a boron material into the components, and the action mechanism is as follows: boron is partially polymerized in an austenite boundary, carbon and phosphorus in the components have important influence on the hardenability of the boron-improving accessory, and the hardenability of the rack 1 is obviously improved and stabilized by utilizing the composite action of multiple elements, so that the method has very important significance for the close association of the subsequent nitriding treatment of the rack 1;

the frame 1 may be made of martensitic stainless steel, or may be made of other types, which are not described herein, but are not intended to limit the present invention.

In the embodiment of the present invention, the rack 1 is designed to be waterproof, and a waterproof layer is disposed on the rack 1 to prolong the service life of the whole rack 1, wherein:

the waterproof layer of the rack 1 adopts the following raw materials in parts by weight:

1 to 5 parts of nickel slag with the grain diameter of 1 to 8 microns, 5 to 8 parts of silicon dioxide with the grain diameter of 1 to 10 microns, 5 to 8 parts of cowhide with the grain diameter of 1 to 10 microns, 5 to 10 parts of pigment with the grain diameter of 1 to 10 microns, 50 to 60 parts of amino resin, 2 to 6 parts of dicumyl peroxide, 2 to 6 parts of pine tar, 2 to 6 parts of sodium carboxymethylcellulose and 1 to 4 parts of propylene glycol butyl ether;

the preparation method comprises the following steps: mixing the nickel slag, the silicon dioxide, the cow leather, the pigment, the amino resin, the dicumyl peroxide, the pine tar, the sodium carboxymethylcellulose and the propylene glycol butyl ether in parts by weight at the temperature of between 150 and 185 ℃, and stirring for 4 to 6 hours to obtain the composite material.

The implementation scenario is specifically as follows:

when the invention is used, a sand and stone mixture to be screened is loaded at the upper end opening of the feed hopper 6, then the sand and stone mixture enters the feed chamber 5, the driving motor 9 is started to drive the first belt pulley group 10 to rotate and then drive the two diversion push rods 12 to rotate, the push plates 13 on the diversion push rods 12 push the sand and stone mixture to enter the screen cage 3 from the feed port 19, the screen cage 3 is driven to rotate by the driving component, the servo motor 15 drives the second belt pulley group 17 and the meshing gear group 16 to simultaneously rotate, as the two ends of the screen cage 3 are respectively provided with the connecting ends 18 which are sleeved with the upper end seat 4 and the rolling bearings 14 on the inner side of the lower end seat 2, the screen cage 3 can rotate under the driving of the meshing gear group 16, so that the sand and stone mixture rolls in the screen holes 3, finer sand grains fall onto the conveyer belt 8 from the screen cage 3, and the second belt pulley group 17 drives the conveyer roller 7 to drive the conveyer belt 8 to, make 8 belts of conveyer belt sand grains carry out the unloading, simultaneously, the grit of remaining great granule falls down from one side of frame 1 along with the rotation of sieve cage 3 from large granule discharge gate 20 under the influence of self gravity, accomplishes whole sieve husky operation promptly, through the design to feeding department for the device causes the jam problem of feeding department when can avoiding the feeding of sand and stone mixture, guarantees going on smoothly of sieve husky operation, has improved sieve husky work efficiency.

The working principle is as follows:

referring to the attached drawings 1-5 of the specification, after sand and stone mixture enters a feeding chamber 5, a driving motor 9 is started to drive a first belt pulley group 10 to rotate and then drive two diversion push rods 12 to rotate, a push plate 13 pushes the sand and stone mixture to enter a screen cage 3 from a feeding port 19, the problem of accumulation and blockage of large-particle sand and stone at the feeding position is avoided, meanwhile, a servo motor 15 drives a second belt pulley group 17 and a meshing gear group 16 to rotate simultaneously, the screen cage 3 can rotate to enable the sand and stone mixture to roll in screen holes 3, fine sand particles fall onto a conveying belt 8 from the screen cage 3, meanwhile, the second belt pulley group 17 drives a conveying roller 7 to drive the conveying belt 8 to convey, the conveying belt 8 carries sand particles to carry out blanking, meanwhile, the large-particle sand and stone remained in the screen cage 3 falls from one side of a rack 1 from a large-particle discharging port 20 under the influence of self gravity along with the rotation of the screen cage 3, accomplish whole sieve husky operation promptly, through the design to feeding department for the device can avoid causing the jam problem of feeding department when the gravel and sand mixture feeding, guarantees going on smoothly of sieve husky operation, has improved sieve husky work efficiency.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.