Building raw material crushing equipment for civil engineering

Abstract

The utility model discloses building raw material crushing equipment for civil engineering, and relates to the technical field of civil engineering, the building raw material crushing equipment comprises a crushing box, a pair of blanking pipes and a pair of feeding boxes, the crushing box is provided with a group of supporting legs, the lower part of a box body of the crushing box is in an inverted circular truncated cone shape, and the lower part of the box body of the crushing box is provided with an inverted circular truncated cone; the pair of feeding boxes and the crushing box are communicated through the corresponding discharging pipes, and each feeding box is formed by being communicated with a circular box through a corresponding feeding opening. Raw materials are crushed into particles at a time through the pair of crushing plates, then the particles are crushed and scattered through the two groups of crushing cutters, the crushed small particles uniformly fall into the crushing box, the small particles are ground into powder through the grinding disc, and through the cooperation of the crushing structure and the grinding structure, the crushing efficiency is greatly improved. According to the building raw material crushing device, building raw materials of different sizes can be automatically crushed, manual preliminary crushing is not needed, manpower and time are saved, and waste concrete blocks in the building raw materials are recycled.

Description

Technical Field

[0001] This utility model relates to the technical field of civil engineering, specifically to a crushing equipment for building materials used in civil engineering. Background Technology

[0002] Civil engineering is a general term for the science and technology of constructing various land engineering facilities. It refers not only to the materials and equipment used, and the technical activities such as surveying, design, construction, maintenance, and repair, but also to the objects of engineering construction.

[0003] Recycled concrete refers to new concrete made by crushing, washing, and grading waste concrete blocks, mixing them with aggregates in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel (mainly coarse aggregates), and then adding cement and water. Therefore, achieving concrete recycling requires concrete crushing equipment to better pulverize the concrete for reuse. The processing of waste concrete blocks involves multiple crushing processes. However, because the size of the building materials, i.e., the waste concrete blocks, varies, the equipment often cannot operate smoothly due to the large size of the raw materials. This necessitates preliminary manual crushing by workers before the concrete blocks are actually crushed, which is time-consuming and labor-intensive. Summary of the Invention

[0004] To address the aforementioned problems, specifically those raised in the background section, this utility model proposes a crushing device for building materials used in civil engineering. The device includes a crushing chamber, a pair of feeding pipes, and a pair of feeding boxes. The crushing chamber is equipped with a set of support legs. The lower part of the crushing chamber is a frustum-shaped cylinder. The pair of feeding boxes are connected to the crushing chamber via corresponding feeding pipes. Each feeding box is connected to a circular box via a corresponding inlet. Both inlets are trapezoidal, with a corresponding rectangular opening on one side. A connecting plate is installed between the pair of feeding boxes. A crushing structure is installed inside each pair of feeding boxes, and a grinding structure is installed inside the crushing chamber.

[0005] The crushing structure includes a motor, a worm gear reducer, a shaft, two sets of crushing blades, bevel gear one, bevel gear two, two pairs of pulleys, a pair of belts, a pair of rotating rods, a pair of connecting rods, and a pair of crushing plates;

[0006] The motor is mounted on the upper side of the crushing box. The output end of the motor is connected to the worm gear reducer. The upper and lower ends of the worm gear reducer are respectively fixed with corresponding short shafts and long shafts. The short shaft passes through the connecting plate and is fixedly connected to the second bevel gear. The second bevel gear meshes with the first bevel gear. The shaft is fixedly connected to and passes through the shaft hole of the first bevel gear. The two ends of the shaft are connected to bearings and pass through the two ends of the corresponding feed boxes. The shaft and a pair of circular boxes are concentric. A set of symmetrically arranged crushing blades is fixedly connected to the outside of the shaft. Each set of crushing blades is located in the corresponding circular box. Each end is fixedly connected to a corresponding pulley, and two pulleys are connected to another pulley via corresponding belts. The central shafts of the other two pulleys are fixedly connected to corresponding round rods. A pair of round rods pass through corresponding sleeves, and a pair of sleeves are placed on one side of the corresponding trapezoidal feed inlet. The other ends of the pair of round rods are fixedly connected to corresponding rotating rods. The other ends of the pair of rotating rods are bearing-connected to one end of the corresponding connecting rod. The other ends of the pair of connecting rods pass through the corresponding rectangular opening and are movably connected to the corresponding crushing plate. The lower ends of the pair of crushing plates are bearing-connected to the bottom of the corresponding trapezoidal feed inlet.

[0007] A further feature of this invention is that the grinding structure includes a grinding disc;

[0008] The lower end of the long shaft is connected to and passes through the crushing box. The lower end of the long shaft is fixedly connected to the grinding disc. The lower side of the grinding disc is a frustum shape, which matches the bottom of the crushing box. A gap is left between the lower side of the grinding disc and the bottom of the crushing box.

[0009] A further feature of this invention is that the upper side of the grinding disc is conical, which facilitates the powder falling into the gap for grinding.

[0010] A further feature of this invention is that the bottom of the crushing box is provided with a discharge port.

[0011] A further feature of this invention is that a support frame is installed between the trapezoidal feed inlets of the pair of feed boxes and the crushing box.

[0012] The beneficial technical effects of this utility model are as follows: This utility model uses a pair of crushing plates to crush the raw materials into granules in the first stage, and then uses two sets of crushing blades to crush and disperse them in the second stage. The crushed small particles fall evenly into the crushing box, and the small particles are ground into powder by the grinding disc. Through the cooperation of the crushing structure and the grinding structure, it can realize the automatic crushing of building raw materials of different sizes without the need for manual preliminary crushing, saving manpower and time. It also enables the recycling of waste concrete blocks in building raw materials, reduces the emission of construction waste, and is beneficial to environmental protection. Attached Figure Description

[0013] Figure 1 A three-dimensional structural schematic diagram of this utility model is shown. Figure 1 .

[0014] Figure 2 A three-dimensional structural schematic diagram of this utility model is shown. Figure 2 .

[0015] Figure 3 This diagram shows a three-dimensional structural schematic of the feed box 1 of this utility model after being cut apart.

[0016] Figure 4 The diagram shows a three-dimensional structural schematic of the feed box 1 and the crushing box 5 after being cut apart.

[0017] Figure 5 A partial structural schematic diagram of this utility model is shown.

[0018] The attached diagram includes the following reference numerals: 1. Feed box; 2. Pulley; 3. Belt; 4. Feed pipe; 5. Crushing box; 6. Bevel gear one; 7. Bevel gear two; 8. Motor; 9. Crushing blade; 10. Shaft; 11. Worm gear reducer; 12. Grinding disc; 13. Crushing plate; 14. Connecting rod; 15. Rectangular opening; 16. Rotating rod. Detailed Implementation

[0019] The following is a reference to the appendix. Figures 1-5 The preferred embodiments of this utility model are described below. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0020] This utility model proposes a crushing device for building materials used in civil engineering. When using this device, the motor 8 is started, driving the worm gear reducer 11. The worm gear reducer 11 drives the short and long shafts to rotate. The short shaft drives the second bevel gear 7 to rotate, which in turn drives the meshing bevel gear 6 to rotate. The first bevel gear 6 drives the shaft 10 to rotate, which in turn drives a set of crushing blades 9 to rotate within the circular box of the feed box 1. The shaft 10 drives two pulleys 2 to rotate, which in turn drive another corresponding pulley 2 to rotate via corresponding belts 3. These two pulleys 2 drive corresponding round rods to rotate, which in turn drive corresponding rotating rods 16 to rotate. The rotation of the rotating rods 16 causes connecting rods 14 to oscillate back and forth within a rectangular opening 15. The connecting rods 14 cause corresponding crushing plates 13 to oscillate back and forth within the trapezoidal feed inlet of the feed box 1. Simultaneously, the long shaft drives the grinding... The grinding disc 12 rotates at the bottom of the crushing box 5. The collection box is placed at the discharge port of the crushing box 5. Waste concrete blocks are poured into the two feed boxes 1 at a uniform speed. A pair of crushing plates 13 crush the blocks into granules. The granular raw materials fall into the circular box, where they are further crushed and dispersed by two sets of crushing blades into small particles. The crushed particles fall evenly into the crushing box 5. The small particles slide along the upper conical surface of the grinding disc 12 to the outer ring of the grinding disc 12. The grinding disc 12 grinds the small particles into powder. The ground powder falls into the collection box through the discharge port. This device, through the combination of crushing and grinding structures, can automatically crush building materials of different sizes without the need for manual preliminary crushing, saving manpower and time. It also recycles waste concrete blocks from building materials, reduces the emission of construction waste, and is beneficial to environmental protection.

[0021] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0022] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A crushing device for building materials used in civil engineering, comprising a crushing box (5), a pair of feeding pipes (4) and a pair of feeding boxes (1), characterized in that: The crushing box (5) is provided with a set of support legs. The lower part of the crushing box (5) is an inverted frustum shape. A pair of feeding boxes (1) are connected to the crushing box (5) through the corresponding feeding pipe (4). Each feeding box (1) is connected to the circular box through the corresponding feeding port. A pair of feeding ports are trapezoidal feeding ports. A corresponding rectangular opening (15) is provided on one side of the pair of trapezoidal feeding ports. A connecting plate is installed between the pair of feeding boxes (1). A crushing structure is installed in each pair of feeding boxes (1). A grinding structure is installed in the crushing box (5). The crushing structure includes a motor (8), a worm gear reducer (11), a shaft (10), two sets of crushing blades (9), a bevel gear one (6), a bevel gear two (7), two pairs of pulleys (2), a pair of belts (3), a pair of rotating rods (16), a pair of connecting rods (14), and a pair of crushing plates (13). The motor (8) is mounted on the upper side of the crushing box (5). The output end of the motor (8) is connected to the worm gear reducer (11). The upper and lower ends of the worm gear reducer (11) are respectively fixed with corresponding short shafts and long shafts. The short shaft passes through the connecting plate and is fixedly connected to the bevel gear two (7). The bevel gear two (7) meshes with the bevel gear one (6). The shaft (10) is fixedly connected to and passes through the shaft hole of the bevel gear one (6). The two ends of the shaft (10) are connected to the bearings and pass through the two ends of the corresponding feed box (1). The shaft (10) and a pair of circular boxes are concentric. A set of symmetrically arranged crushing blades (9) are fixedly connected to the outside of the shaft (10). Each set of crushing blades (9) is located in the corresponding circular box. The two ends of the shaft (10) are respectively fixedly connected to one of the corresponding pulleys (2). The two pulleys (2) are connected to the other pulley (2) through the corresponding belt (3). The central shafts of the other two pulleys (2) are respectively fixedly connected to the corresponding round rods. A pair of round rods pass through the corresponding sleeves. The pair of sleeves are placed on one side of the corresponding trapezoidal feed inlet. The other end of the pair of round rods is respectively fixedly connected to the corresponding rotating rod (16). The other end of the pair of rotating rods (16) is connected to one end of the corresponding connecting rod (14) by a bearing. The other end of the pair of connecting rods (14) passes through the corresponding rectangular opening (15) and is movably connected to the corresponding crushing plate (13). The lower end of the pair of crushing plates (13) is connected to the bottom of the corresponding trapezoidal feed inlet by a bearing.

2. The building material crushing equipment for civil engineering according to claim 1, characterized in that: The grinding structure includes a grinding disc (12); The bearing at the lower end of the long shaft is connected to and passes through the crushing box (5). The lower end of the long shaft is fixedly connected to the grinding disc (12). The lower side of the grinding disc (12) is an inverted frustum shape, which matches the bottom of the crushing box (5). A gap is left between the lower side of the grinding disc (12) and the bottom of the crushing box (5).

3. The building material crushing equipment for civil engineering according to claim 2, characterized in that: The upper side of the grinding disc (12) is conical.

4. The building material crushing equipment for civil engineering according to claim 1, characterized in that: The bottom of the crushing box (5) is provided with a discharge port.

5. The building material crushing equipment for civil engineering according to claim 1, characterized in that: A support frame is installed between the trapezoidal feed inlets of the pair of feed boxes (1) and the crushing box (5).

Images