Gravel crushing and sorting device for road construction

Abstract

The broken stone crushing and sorting device for road construction comprises a screening box, a feeding shell is fixedly connected to the upper surface of the screening box, two crushing rollers are rotatably connected to the interior of the feeding shell, an auxiliary box is fixedly connected to the front face of the screening box, and an air suction pipe fixedly communicates with the upper surface of the auxiliary box; the end, away from the auxiliary box, of the air suction pipe fixedly communicates with the front face of the screening box, the bottom face of the auxiliary box fixedly communicates with a negative pressure pump, a collecting box is slidably connected into the auxiliary box, a filtering plate is arranged in the collecting box, and two positioning rods are slidably connected into the collecting box. According to the device, the problems that dust cannot be purified, a large amount of dust can be generated during stone processing or gravel sorting, the dust cannot be treated in time and floats in the air around the working environment, and the body of an operator is easily harmed when the operator inhales the dust for a long time are solved, and meanwhile, the pollution to the environment is reduced; the effect of improving the using effect of the broken stone crushing and sorting device is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, and in particular to a gravel crushing and sorting device for road construction. Background Art

[0002] Road literally means the infrastructure that provides various trackless vehicles and pedestrians with passage. According to its characteristics, it can be divided into highways, urban roads, rural roads, factory and mine roads, and forestry roads. Construction refers to the construction of the project according to the plan. Different road design grades have different requirements for the selection of stone for construction. Stone crushing and sorting equipment is needed when processing the stone.

[0003] The invention with the existing authorization announcement number CN210522620U discloses a gravel crushing and sorting device for road construction, including a screening box, the upper surface of the screening box is fixedly connected to a feed port, and crushing motors are fixedly installed on the left and right sides of the outer wall of the feed port. The output end of the crushing motor is connected to a transmission wheel, and a belt is installed on the transmission wheel. The other end of the belt is connected to a crushing wheel, and the crushing wheel is placed in the feed port.

[0004] Although the above-mentioned technical scheme can seal the feed port by installing a sealing plate at the opening of the feed port when crushing stones, so as to prevent stones from splashing out through the feed port and causing harm to surrounding workers, thereby improving the safety of the device, the above-mentioned technical scheme lacks the ability to purify dust during use. A large amount of dust will be generated during stone processing or gravel sorting. If the dust is not handled in time, it will float in the air around the working environment, and the operator may easily cause harm to the body if inhaled for a long time. At the same time, it also aggravates the pollution to the environment and reduces the use effect of the gravel crushing and sorting device. Therefore, technical personnel in this field provide a gravel crushing and sorting device for road construction to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0005] In view of this, it is necessary to provide a gravel crushing and sorting device for road construction to solve the problem that dust cannot be purified.

[0006] According to one aspect of the present invention, a gravel crushing and sorting device for road construction is provided, comprising: a screening box, the upper surface of the screening box is fixedly connected to a feed shell, two crushing rollers are rotatably connected inside the feed shell, the front of the screening box is fixedly connected to an auxiliary box, the upper surface of the auxiliary box is fixedly connected to an air suction pipe, one end of the air suction pipe away from the auxiliary box is fixedly connected to the front of the screening box, the bottom surface of the auxiliary box is fixedly connected to a negative pressure pump, the interior of the auxiliary box is slidably connected to a collecting box, a filter plate is provided inside the collecting box, two positioning rods are slidably connected to the interior of the collecting box, the right end of each positioning rod extends to the interior of the filter plate, the outer surface of each positioning rod is fixedly connected to an auxiliary ring, the left end of each auxiliary ring is fixedly connected to a return spring, the left end of each return spring is fixedly connected to the inner side wall of the collecting box, and the bottom surface of the screening box is fixedly connected to a discharge pipe.

[0007] According to some embodiments, two groups of support rods are fixedly connected to the bottom surface of the screening box, and a stabilizing ring is fixedly connected to the outer surface of each group of support rods.

[0008] According to some embodiments, two servo motors are fixedly connected to the right side of the screening box, and the right end of each of the crushing rollers is fixedly connected to the output end of the servo motor power.

[0009] According to some embodiments, an auxiliary bearing is sleeved on the outer surface of each of the pulverizing rollers, and each of the auxiliary bearings is embedded in the interior of the feed shell.

[0010] According to some embodiments, a screen is disposed inside the screening box, and a vibration exciter is fixedly connected to the bottom surface of the screen.

[0011] According to some embodiments, the left side surface of the screening box is fixedly connected to a collecting pipe, and the left end of the collecting pipe is fixedly connected to a feeding mechanism.

[0012] According to some embodiments, a fixing block is fixedly connected to the outer surface of the negative pressure pump, and the upper surface of the fixing block is fixedly connected to the bottom surface of the auxiliary box.

[0013] According to some embodiments, the left ends of the two positioning rods are commonly fixedly connected to a stopper, and the left side surface of the stopper is fixedly connected to a pulling handle.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By arranging a screening box, a feed shell, a crushing roller, an auxiliary box, an air suction pipe, a negative pressure pump, a collection box, a filter plate, a positioning rod, an auxiliary ring, a return spring and a discharge pipe, the crushed stone can be crushed by relying on the feed shell and the crushing roller, and the air in the auxiliary box can be extracted by using the negative pressure pump, so that the air pressure in the auxiliary box and the screening box are different, so that the air suction pipe continuously draws the dust-mixed air in the screening box into the auxiliary box, and relies on the filter plate to filter the dust in the collection box, and then the purified air is discharged through the negative pressure pump, and the positioning rod is pulled to move it from the filter plate The filter plate can be quickly removed from the collecting box for easy replacement and cleaning of the filter plate, thus avoiding the filtering effect being affected by dust. This solves the problem of lack of dust purification during use. A large amount of dust will be generated during stone processing or gravel sorting. If the dust is not handled in time, it will float in the air around the working environment, and the operator may be harmed by long-term inhalation. This reduces pollution to the environment and improves the use effect of the gravel crushing and sorting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a screening box of a gravel crushing and sorting device for road construction provided by the present invention; Figure 2 A schematic diagram of a cutaway three-dimensional structure of a feed shell of a gravel crushing and sorting device for road construction provided by the present invention; Figure 3 A schematic diagram of a cutaway three-dimensional structure of an auxiliary box of a gravel crushing and sorting device for road construction provided by the present invention; Figure 4 The present invention is a schematic diagram of a sectional three-dimensional structure of a collecting box of a gravel crushing and sorting device for road construction provided by the present invention.

[0017] In the figure: 1. screening box; 2. feed shell; 3. crushing roller; 4. auxiliary box; 5. suction pipe; 6. negative pressure pump; 7. collecting box; 8. filter plate; 9. positioning rod; 10. auxiliary ring; 11. reset spring; 12. discharge pipe; 13. support rod; 14. stabilizing ring; 15. servo motor; 16. auxiliary bearing; 17. screen; 18. exciter; 19. collecting pipe; 20. feeding mechanism; 21. fixing block; 22. stopper; 23. pulling handle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] See also Figures 1 to 4 The present invention provides a gravel crushing and sorting device for road construction, comprising a screening box 1, a feed shell 2 is fixedly connected to the upper surface of the screening box 1, two crushing rollers 3 are rotatably connected inside the feed shell 2, an auxiliary box 4 is fixedly connected to the front of the screening box 1, an air suction pipe 5 is fixedly connected to the upper surface of the auxiliary box 4, one end of the air suction pipe 5 away from the auxiliary box 4 is fixedly connected to the front of the screening box 1, a negative pressure pump 6 is fixedly connected to the bottom surface of the auxiliary box 4, a collecting box 7 is slidably connected inside the auxiliary box 4, a filter plate 8 is arranged inside the collecting box 7, two positioning rods 9 are slidably connected inside the collecting box 7, the right end of each positioning rod 9 extends to the inside of the filter plate 8, an auxiliary ring 10 is fixedly connected to the outer surface of each positioning rod 9, a reset spring 11 is fixedly connected to the left end of each auxiliary ring 10, the left end of each reset spring 11 is fixedly connected to the inner side wall of the collecting box 7, and a discharge pipe 12 is fixedly connected to the bottom surface of the screening box 1.

[0020] The air in the auxiliary box 4 is extracted by the suction force generated by the negative pressure pump 6, so that the suction pipe 5 continuously absorbs the air in the screening box 1 due to the negative pressure, and then the impurities in the air are filtered into the collection box 7 through the filter plate 8. The filtered air will be discharged by the negative pressure pump 6, and at the same time, the positioning rod 9 is pulled to move it out of the filter plate 8, and then the filter plate 8 is quickly disassembled, and the auxiliary ring 10 and the reset spring 11 can also push the positioning rod 9 to reset, which increases the convenience of installing the filter plate 8 and effectively increases the environmental protection capacity and use effect of the gravel crushing and sorting device for road construction.

[0021] Furthermore, two groups of support rods 13 are fixedly connected to the bottom surface of the screening box 1, and a stabilizing ring 14 is fixedly connected to the outer surface of each group of support rods 13. The screening box 1 is supported by the support rods 13, thereby improving the convenience of the screening box 1 in use, and the stabilizing ring 14 can also increase the contact area between the support rods 13 and the ground, thereby improving the stability during support.

[0022] Furthermore, two servo motors 15 are fixedly connected to the right side of the screening box 1, and the right end of each crushing roller 3 is fixedly connected to the output end of the servo motor 15. The servo motor 15 can provide a good power source for the crushing roller 3. The crushing roller 3 is driven by the servo motor 15 to rotate, and then the crushed stone is crushed by the rotating crushing roller 3, which increases the effect during use.

[0023] Furthermore, the outer surface of each crushing roller 3 is sleeved with an auxiliary bearing 16, and each auxiliary bearing 16 is embedded in the inside of the feed shell 2. The auxiliary bearing 16 can reduce the friction generated by the crushing roller 3 during rotation, making the crushing roller 3 more sensitive when rotating, and at the same time can also reduce the wear speed of the crushing roller 3 and increase the service life of the crushing roller 3.

[0024] Furthermore, a screen 17 is provided inside the screening box 1, and a vibrator 18 is fixedly connected to the bottom surface of the screen 17. The vibrator 18 drives the screen 17 to vibrate continuously, and then the screen 17 is used to filter the crushed gravel, so that the gravel that does not meet the standards remains above the screen 17 and is transmitted out of the screening box 1 through the slope of the screen 17.

[0025] Furthermore, the left side surface of the screening box 1 is fixedly connected to a collecting pipe 19, and the left end of the collecting pipe 19 is fixedly connected to a feeding mechanism 20. The collecting pipe 19 can accept crushed stones that do not meet the standards and transfer the crushed stones to the screening box 1 for secondary crushing through the feeding mechanism 20, thereby increasing the crushing effect during use.

[0026] Furthermore, a fixed block 21 is fixedly connected to the outer surface of the negative pressure pump 6, and the upper surface of the fixed block 21 is fixedly connected to the bottom surface of the auxiliary box 4. The fixed block 21 can provide a good force position for the negative pressure pump 6, increase the stability of the negative pressure pump 6 during use, prevent it from shaking, and increase the stability of the negative pressure pump 6 during operation.

[0027] Furthermore, the left ends of the two positioning rods 9 are fixedly connected with a block 22, and the left side of the block 22 is fixedly connected with a pulling handle 23. Through the cooperation of the block 22 and the pulling handle 23, a good force point can be provided for the positioning rod 9, thereby increasing the convenience when pulling the positioning rod 9 and improving the convenience during use.

[0028] Working principle: When in use, first connect the negative pressure pump 6, the servo motor 15, the vibrator 18 and the feeding mechanism 20 to the power supply. When the gravel needs to be crushed, pour the gravel into the feed shell 2, and then the servo motor 15 drives the crushing roller 3 to rotate, and then the two crushing rollers 3 are used to crush the gravel. The crushed gravel will fall above the screen 17. At this time, the vibrator 18 will drive the screen 17 to vibrate continuously, and discharge the qualified large and small gravel from the screening box 1 through the discharge pipe 12, so that the unqualified large and small stones can roll into the collecting pipe 19 due to the slope design of the screen 17, and then be sent back to the feed shell 2 for the second time through the feeding mechanism 20, and then be crushed for the second time. When it is necessary to purify the dust generated during the crushing process, start the negative pressure pump 6, and then rely on the negative pressure pump 6 to extract the air in the auxiliary box 4, and make the suction pipe 5 continue to suck the dust-mixed air in the screening box 1 due to the different air pressures. The filter plate 8 is then removed from the collecting box 7 by pulling the handle 23 out of the way, and the stopper 22 drives the two positioning rods 9 to move out of the filter plate 8, so that the filter plate 8 is not disturbed by the outside. At this time, the filter plate 8 can be quickly removed from the collecting box 7, and the reset spring 11 and the auxiliary ring 10 can cooperate to enable the positioning rod 9 to perform the reset function, thereby increasing the convenience of installing the filter plate 8, realizing the ability to quickly clean or replace the filter plate 8, and further increasing the effect of dust purification.

[0029] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

Claims

1. A gravel crushing and sorting device for road construction, characterized in that: The invention comprises a screening box (1), wherein a feed shell (2) is fixedly connected to the upper surface of the screening box (1), two crushing rollers (3) are rotatably connected inside the feed shell (2), an auxiliary box (4) is fixedly connected to the front of the screening box (1), an air suction pipe (5) is fixedly connected to the upper surface of the auxiliary box (4), an end of the air suction pipe (5) away from the auxiliary box (4) is fixedly connected to the front of the screening box (1), a negative pressure pump (6) is fixedly connected to the bottom surface of the auxiliary box (4), and a collecting box (7) is slidably connected inside the auxiliary box (4). A filter plate (8) is arranged inside the collection box (7), and two positioning rods (9) are slidably connected inside the collection box (7), and the right end of each positioning rod (9) extends into the interior of the filter plate (8), and the outer surface of each positioning rod (9) is fixedly connected to an auxiliary ring (10), and the left end of each auxiliary ring (10) is fixedly connected to a return spring (11), and the left end of each return spring (11) is fixedly connected to the inner side wall of the collection box (7), and the bottom surface of the screening box (1) is fixedly connected to a discharge pipe (12).

2. A gravel crushing and sorting device for road construction according to claim 1, characterized in that: Two groups of support rods (13) are fixedly connected to the bottom surface of the screening box (1), and a stabilizing ring (14) is fixedly connected to the outer surface of each group of support rods (13).

3. A gravel crushing and sorting device for road construction according to claim 1, characterized in that: Two servo motors (15) are fixedly connected to the right side of the screening box (1), and the right end of each crushing roller (3) is fixedly connected to the power output end of the servo motor (15).

4. A gravel crushing and sorting device for road construction according to claim 1, characterized in that: The outer surface of each of the pulverizing rollers (3) is sleeved with an auxiliary bearing (16), and each of the auxiliary bearings (16) is embedded in the interior of the feed shell (2).

5. The gravel crushing and sorting device for road construction according to claim 1, characterized in that: A screen (17) is provided inside the screening box (1), and a vibrator (18) is fixedly connected to the bottom surface of the screen (17).

6. A gravel crushing and sorting device for road construction according to claim 1, characterized in that: The left side surface of the screening box (1) is fixedly connected to a material collecting pipe (19), and the left end of the material collecting pipe (19) is fixedly connected to a material feeding mechanism (20).

7. A gravel crushing and sorting device for road construction according to claim 1, characterized in that: A fixing block (21) is fixedly connected to the outer surface of the negative pressure pump (6), and the upper surface of the fixing block (21) is fixedly connected to the bottom surface of the auxiliary box (4).

8. The gravel crushing and sorting device for road construction according to claim 1, characterized in that: The left ends of the two positioning rods (9) are commonly fixedly connected to a stopper (22), and the left side surface of the stopper (22) is fixedly connected to a pulling handle (23).

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