Rock and soil grinding device for road and bridge laying

Abstract

The utility model discloses a road and bridge laying rock-soil grinding device and belongs to the technical field of road and bridge equipment. A screening net is arranged in a shell, a crushing plate is connected with the shell and provided with a first crushing protruding block, a rotating rod is connected with a motor, the first motor is fixed to the shell, a conical crushing roller is fixed to the rotating rod, a second crushing protruding block is arranged on the conical crushing roller, a crushing cutter is connected with the rotating rod, and the rotating rod penetrates through the screening net and is connected with a grinding ball. The screening net is used in cooperation with the dredging mechanism, the dredging mechanism is connected with the rotating rod, the grinding ball is used in cooperation with the grinding mechanism, the grinding mechanism is connected with the shell through a bearing, the grinding mechanism is provided with a discharging port and extends out of the shell, the grinding ball is provided with an auger, the auger extends to the discharging port, and the shell is provided with a feeding port. The grinding device has excellent performance and remarkable beneficial effects in the aspects of improving the grinding efficiency and quality, realizing continuous automatic operation, reducing the maintenance cost, enhancing the adaptability to different construction environments and the like, and is an indispensable efficient tool in modern road and bridge construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge equipment, in particular to a rock and soil grinding device for road and bridge paving. Background Art

[0002] In modern road and bridge construction, the processing of geotechnical materials is a key link to ensure engineering quality and construction efficiency. Traditionally, geotechnical grinding mainly relies on crushing machinery and manual screening. Although this method is feasible to a certain extent, it has many shortcomings. First, its efficiency is low and it is difficult to meet the needs of large-scale construction; second, the uniformity and fineness of geotechnical particles are difficult to ensure, which directly affects the bearing capacity and durability of road and bridge foundations.

[0003] In recent years, with the continuous advancement of technology, some new solutions have emerged in the field of geotechnical grinding. For example, the utility model patent with the authorization announcement number CN218531184U, namely "a geotechnical grinding device for road and bridge paving", has improved the problem that large rock blocks are difficult to grind in traditional methods. However, although it has improved the grinding efficiency to a certain extent, there are still some significant limitations. Specifically, the crushing blades of the device are in direct contact with larger and faster rock blocks, which increases the wear rate of the crushing blades, which not only increases maintenance costs, but may also affect the construction progress; in addition, when screening through the screening net, the mesh is easy to be blocked, resulting in unsatisfactory screening effect, which further affects the processing quality of geotechnical materials. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model provides a rock and soil grinding device for road and bridge paving.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a road and bridge paving rock and soil grinding device, including a shell, a screening net, a crushing plate, a rotating rod, a motor 1, a conical crushing drum, a bearing, a grinding ball, a screw dragon, a discharge port, a feed port, a grinding mechanism, a plurality of crushing protrusions 1, a plurality of crushing protrusions 2, a plurality of crushing knives and a plurality of dredging mechanisms;

[0006] A screening net is horizontally fixed in the shell, and a crushing plate is provided above the screening net, and the outer wall of the crushing plate is fixedly connected to the inner wall of the shell, and the inner wall of the crushing plate is evenly provided with a plurality of crushing protrusions 1, one end of the rotating rod is fixedly connected to the output shaft of the motor, and the motor is fixed on the shell, and a conical crushing drum is fixed on the outer wall of the rotating rod, and a plurality of crushing protrusions 2 are evenly distributed on the conical crushing drum, and the plurality of crushing protrusions 2 are used in conjunction with the plurality of crushing protrusions 1, and a plurality of crushing knives are provided between the conical crushing drum and the screening net, and the plurality of crushing knives are fixedly connected to the rotating rod, and the other end of the rotating rod slides through the screening net and is fixedly connected to the grinding ball, and the lower end of the screening net is used in conjunction with a plurality of dredging mechanisms, and the plurality of dredging mechanisms are all rotatably connected to the rotating rod, and the grinding balls are used in conjunction with the grinding mechanisms, and the grinding mechanisms are rotatably connected to the shell through bearings, and a discharge port is provided on the grinding mechanism and extends outside the shell, and a screw dragon is provided at the lower end of the grinding ball, and the screw dragon extends to the discharge port, and a feed port is provided at the upper end of the shell.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. Efficient crushing: This device adopts a multi-stage crushing mechanism. First, the initial crushing is carried out through the precise coordination of the crushing protrusion one and multiple crushing protrusions two, which effectively reduces the volume of the rock and soil blocks; then, multiple crushing knives relay for secondary crushing, which not only improves the crushing efficiency, but also avoids damage and wear caused by direct contact between the crushing knives and large pieces of rock and soil.

[0009] 2. Fine grinding: The precise matching of the hemispherical grinding shell and the grinding balls of this device realizes the fine grinding of rock and soil blocks, ensuring that the particles reach the particle size required by the design and significantly improving the grinding quality.

[0010] 3. Intelligent screening and anti-blocking technology: The screening net in this device only allows qualified smaller rock and soil blocks to pass through; in order to solve the common screen blockage problem in traditional equipment, a dredging mechanism is specially designed, which automatically penetrates into and cleans the rock and soil blocks blocked in the mesh of the screening net through the convex thorns on the rotating roller, effectively preventing blockage, ensuring the continuity of screening and the stable operation of the equipment, and improving the reliability of the equipment and the convenience of maintenance.

[0011] 4. Fully automated continuous operation: The entire grinding device realizes a fully automated continuous operation process from feeding, crushing, screening, grinding to discharging, completely getting rid of the constraints of manual intervention. Users only need to continue to add rock and soil blocks to the feed port, and the device can automatically complete all subsequent processing steps, greatly improving work efficiency and construction progress. This continuous operation capability not only improves construction efficiency, but also reduces labor costs, making it an ideal choice for modern road and bridge construction.

[0012] In summary, the utility model demonstrates excellent performance and significant beneficial effects in improving grinding efficiency and quality, realizing continuous automated operation, reducing maintenance costs, and enhancing adaptability to different construction environments. It is an indispensable and efficient tool in modern road and bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the utility model. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] This embodiment describes a rock and soil grinding device for road and bridge paving, including a housing 1, a screening net 2, a crushing plate 3, a rotating rod 5, a motor 6, a conical crushing drum 7, a bearing 12, a grinding ball 13, a screw 18, a discharge port 19, a feed port 20, a grinding mechanism, a plurality of crushing protrusions 14, a plurality of crushing protrusions 28, a plurality of crushing knives 11 and a plurality of dredging mechanisms;

[0016] A screening net 2 is fixed horizontally in the shell 1, a crushing plate 3 is arranged above the screening net 2, the outer wall of the crushing plate 3 is fixedly connected to the inner wall of the shell 1, a plurality of crushing protrusions 4 are evenly distributed on the inner wall of the crushing plate 3, one end of the rotating rod 5 is fixedly connected to the output shaft of the motor 6, the motor 6 is fixed on the shell 1, a conical crushing drum 7 is fixed on the outer wall of the rotating rod 5, a plurality of crushing protrusions 8 are evenly distributed on the conical crushing drum 7, the plurality of crushing protrusions 8 are used in conjunction with the plurality of crushing protrusions 4, and a plurality of crushing knives are arranged between the conical crushing drum 7 and the screening net 2 11, the multiple crushing knives 11 are fixedly connected to the rotating rod 5, the other end of the rotating rod 5 slides through the screening net 2 and is fixedly connected to the grinding ball 13, the lower end of the screening net 2 is used in conjunction with a plurality of dredging mechanisms, the multiple dredging mechanisms are all rotatably connected to the rotating rod 5, the grinding ball 13 is used in conjunction with the grinding mechanism, the grinding mechanism is rotatably connected to the shell 1 through a bearing 12, a discharge port 19 is provided on the grinding mechanism and extends to the outside of the shell 1, a screw dragon 18 is provided at the lower end of the grinding ball 13, the screw dragon 18 extends to the discharge port 19, and a feed port 20 is provided at the upper end of the shell 1.

[0017] Each of the dredging mechanisms comprises a rotating roller 9 and a plurality of convex thorns 10;

[0018] One end of the rotating roller 9 is rotatably connected to the rotating rod 5 , and a plurality of convex thorns 10 matching the meshes of the screening net 2 are evenly distributed on the outer wall of the rotating roller 9 , and the plurality of convex thorns 10 are used in conjunction with the holes of the screening net 2 .

[0019] The grinding mechanism includes a hemispherical grinding shell 14, a gear ring 15, a gear 16 and a motor 2 17;

[0020] The hemispherical grinding shell 14 is rotatably connected to the inner bottom surface of the shell 1 through a bearing 12, and a gear ring 15 is fixedly mounted on the outer wall of the hemispherical grinding shell 14. The gear ring 15 is meshed with a gear 16, and the gear 16 is fixedly connected to the output shaft of the motor 2 17. The motor 2 17 is fixed on the shell 1. The hemispherical grinding shell 14 is used in conjunction with the grinding ball 13. A discharge port 19 is provided at the lower end of the hemispherical grinding shell 14 and extends to the outside of the shell 1.

[0021] When the utility model is used, the rock blocks to be ground enter the shell 1 through the feed port 20, and they first encounter a plurality of crushing protrusions 4 fixed on the inner wall of the crushing plate 3. At the same time, the motor 6 is started to drive the rotating rod 5 to rotate, thereby rotating the conical crushing drum 7. The plurality of crushing protrusions 8 on the conical crushing drum 7 cooperate with the crushing protrusions 4 on the crushing plate 3 to perform preliminary crushing and rolling on the rock blocks; the rock blocks after preliminary crushing fall onto the screening net 2, and the qualified smaller rock blocks fall into the hemispherical grinding shell 14 below through the mesh of the screening net 2. For the rock blocks that fail to pass through the screening net 2, they will be further crushed by the plurality of crushing knives 11 arranged between the conical crushing drum 7 and the screening net 2 until their size is sufficient to pass through the screening net 2; in order to prevent the rock blocks from clogging the mesh of the screening net 2, the device is designed with a plurality of dredging mechanisms, each of which includes a rotating roller 9 and a plurality of convex thorns 10. As the rotating rod 5 rotates, the rotating roller 9 also rotates, and the convex thorns 10 thereon will The mesh of the screening net 2 is inserted into the mesh of the screening net 2 to effectively clear the holes that may be blocked; when the qualified rock and soil blocks fall into the hemispherical grinding shell 14, the motor 2 17 is started to rotate the gear 16, thereby driving the gear ring 15 and the hemispherical grinding shell 14 meshing therewith to rotate. The rotation direction of the hemispherical grinding shell 14 is opposite to that of the grinding ball 13. At this time, the grinding ball 13 is driven by the rotation of the rotating rod 5. The relative movement between the two grinds the rock and soil blocks finely until the required particle size is reached. The good rock and soil blocks are discharged through the discharge port 19 at the lower end of the hemispherical grinding shell 14. In order to prevent the discharge port 19 from being blocked, an auger 18 is provided at the lower end of the grinding ball 13. As the grinding ball 13 rotates, the auger 18 also rotates synchronously to push the ground rock and soil blocks smoothly to the outside of the discharge port 19. Since the feeding, crushing, screening, grinding and discharging of the rock and soil blocks are carried out continuously during the entire grinding process, new rock and soil blocks can be continuously added to the feed port 20 to achieve efficient and continuous grinding operations.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms of assembly without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalents of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A rock and soil grinding device for road and bridge paving, characterized in that: It comprises a housing (1), a screening net (2), a crushing plate (3), a rotating rod (5), a motor (6), a conical crushing drum (7), a bearing (12), a grinding ball (13), an auger (18), a discharge port (19), a feed port (20), a grinding mechanism, a plurality of crushing protrusions (4), a plurality of crushing protrusions (8), a plurality of crushing knives (11) and a plurality of dredging mechanisms; A screening net (2) is fixed horizontally in the shell (1), a crushing plate (3) is provided above the screening net (2), the outer wall of the crushing plate (3) is fixedly connected to the inner wall of the shell (1), a plurality of crushing protrusions (4) are evenly distributed on the inner wall of the crushing plate (3), one end of the rotating rod (5) is fixedly connected to the output shaft of a motor (6), the motor (6) is fixed on the shell (1), a conical crushing roller (7) is fixedly mounted on the outer wall of the rotating rod (5), a plurality of crushing protrusions (8) are evenly distributed on the conical crushing roller (7), the plurality of crushing protrusions (8) are used in conjunction with the plurality of crushing protrusions (4), a plurality of crushing protrusions are provided between the conical crushing roller (7) and the screening net (2). The crushing knives (11) are fixedly connected to the rotating rod (5); the other end of the rotating rod (5) slides through the screening net (2) and is fixedly connected to the grinding ball (13); the lower end of the screening net (2) is used in conjunction with a plurality of dredging mechanisms; the plurality of dredging mechanisms are all rotatably connected to the rotating rod (5); the grinding ball (13) is used in conjunction with the grinding mechanism; the grinding mechanism is rotatably connected to the shell (1) through a bearing (12); a discharge port (19) is provided on the grinding mechanism and extends to the outside of the shell (1); a screw dragon (18) is provided at the lower end of the grinding ball (13); the screw dragon (18) extends to the discharge port (19); and a feed port (20) is provided at the upper end of the shell (1).

2. A rock and soil grinding device for road and bridge paving according to claim 1, characterized in that: Each of the dredging mechanisms comprises a rotating roller (9) and a plurality of ridges (10); One end of the rotating roller (9) is rotatably connected to the rotating rod (5); the outer wall of the rotating roller (9) is evenly provided with a plurality of convex thorns (10) matching the mesh holes of the screening net (2); the plurality of convex thorns (10) are used in conjunction with the holes of the screening net (2).

3. The rock and soil grinding device for road and bridge paving according to claim 1, characterized in that: The grinding mechanism comprises a hemispherical grinding shell (14), a gear ring (15), a gear (16) and a second motor (17); The hemispherical grinding shell (14) is rotatably connected to the inner bottom surface of the housing (1) via a bearing (12); a gear ring (15) is fixedly mounted on the outer wall of the hemispherical grinding shell (14); the gear ring (15) is meshingly connected to a gear (16); the gear (16) is fixedly connected to an output shaft of a second motor (17); the second motor (17) is fixed to the housing (1); the hemispherical grinding shell (14) is used in conjunction with the grinding ball (13); a discharge port (19) is provided at the lower end of the hemispherical grinding shell (14) and extends to the outside of the housing (1).

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