Sand making machine for constructional engineering

Abstract

The utility model discloses a sand making machine for constructional engineering, which comprises a base, a square sand crushing box and a spring, the square sand crushing box and the spring are arranged at the top end of the base, and the top end of the sand crushing box is communicated with a feeding box; an upper sieve plate and a lower sieve plate are movably arranged in the sand crushing box; the high parts of the upper sieve plate and the lower sieve plate are rotationally arranged on the inner wall of the sand crushing box through hinges; a fixed block is horizontally mounted on the inner wall of the sand crushing box; the fixing blocks are fixedly connected with the upper sieve plate and the lower sieve plate through springs respectively; a sand crushing mechanism is arranged at the upper end in the sand crushing box; through the upper sieve plate and the lower sieve plate which are connected through a hinge, the upper sieve plate and the lower sieve plate can shake, filtration of the broken sand is accelerated, and the screening efficiency is improved; crushed sand blocked by the upper sieve plate and the lower sieve plate is conveyed into the feeding box and is crushed again, so that labor force is saved, and time and labor are saved; the device is simple in structure, convenient to operate and worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and in particular to a sand making machine for construction engineering. Background Art

[0002] A large amount of sand and gravel is needed in construction projects, but the sand and gravel that can be directly obtained is limited, so sand making is needed. The equipment used for sand making is a sand making machine, which crushes the material.

[0003] However, the existing sand making machines for construction projects still have some drawbacks. When using traditional sand making machines for construction projects, the uncrushed materials need to be manually sorted out and manually put back into the feed box for secondary crushing, which is labor-intensive, time-consuming and labor-intensive. In addition, the machine needs to be stopped during sorting, which reduces production efficiency. For this reason, we propose a sand making machine for construction projects. Utility Model Content

[0004] The purpose of the utility model is to provide a sand making machine for construction engineering to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand making machine for construction engineering, which comprises a base and a square sand crushing box and a spring arranged at the top of the base, the top of the sand crushing box is connected with a feed box; an upper screen plate and a lower screen plate are movably arranged inside the sand crushing box; the upper and lower screen plates are rotatably arranged on the inner wall of the sand crushing box through hinges; a fixed block is horizontally installed on the inner wall of the sand crushing box; the fixed block is fixedly connected to the upper and lower screen plates respectively through springs; a sand crushing mechanism is arranged at the upper end of the sand crushing box; and a conveying mechanism is arranged at both ends of the sand crushing box;

[0006] The conveying mechanism includes conveying boxes fixedly installed on both sides of the crushed sand box, and the interiors of the two conveying boxes are provided with rotating rods that rotate through bearings; the outer walls of the two rotating rods are provided with spiral conveying blades; an inclined material guide pipe is inserted at the top of the conveying box; the end of the material guide pipe away from the conveying box is connected to the feed box.

[0007] Preferably, the sand crushing mechanism comprises two rotating shafts rotating at the same level, the outer walls of the two rotating shafts are provided with sand crushing rollers, the two rotating shafts penetrate the sand crushing box and extend to the outer wall and are respectively equipped with gears; the two gears are meshed with each other.

[0008] Preferably, a second motor is installed at the rear of the sand crushing box; the output end of the second motor is drivingly connected to one of the rotating shafts.

[0009] Preferably, the lowest ends of the upper and lower sieve plates are connected to the interior of the lower end of the conveying box; a plurality of mesh holes are arranged on the upper and lower sieve plates, and the mesh holes on the upper sieve plate are larger than the mesh holes on the lower sieve plate, and the upper and lower sieve plates are arranged oppositely.

[0010] Preferably, two limit plates are installed on the inner wall of the crushing sand box; a protective pad is installed at the bottom end of the limit plate, and the protective pad is a rubber pad; the inclination and direction of the two limit plates are respectively consistent with the upper sieve plate and the lower sieve plate.

[0011] Preferably, meshing blocks are provided on both sides of the two sand crushing rollers inside the crushing box; and a guide plate is provided below the lower screen plate inside the crushing box.

[0012] Beneficial effects: Compared with the prior art, the beneficial effects of the utility model are: through the arrangement of the upper sieve plate, the lower sieve plate, the fixed block, the spring, the limit plate and the protective pad, the crushed sand is filtered, and the upper sieve plate and the lower sieve plate connected by the hinge enable the upper sieve plate and the lower sieve plate to shake, thereby accelerating the filtering of the crushed sand and improving the screening efficiency; by installing a conveying mechanism on both sides of the crushed sand box, the crushed sand blocked by the upper sieve plate and the lower sieve plate is conveyed to the feed box, and the crushing operation is carried out again, saving labor, time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a sand making machine for construction engineering proposed by the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the top view of the structure of a sand making machine for construction engineering.

[0015] Figure 3 This is a schematic diagram of the enlarged structure of point A of a sand making machine for construction engineering proposed by the utility model.

[0016] In the attached drawings: 1-base, 2-sand crushing box, 3-feeding box, 4-upper screen plate, 5-lower screen plate, 6-fixed block, 7-spring, 8-limiting plate, 9-protective pad, 10-conveying box, 11-rotating rod, 12-spiral conveying blade, 13-material guide pipe, 14-motor 1, 15-rotating shaft, 16-sand crushing roller, 17-gear, 18-motor 2, 19-meshing block, 20-guide plate. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0019] Example

[0020] Please refer to the attached drawings of the specification. In the embodiment of the utility model, a sand making machine for construction engineering includes a base 1 and a square sand crushing box 2 and a spring 7 arranged at the top of the base 1. The top of the sand crushing box 2 is connected to a feed box 3; an upper screen plate 4 and a lower screen plate 5 are movably arranged inside the sand crushing box 2; the upper screen plate 4 and the lower screen plate 5 are rotatably arranged on the inner wall of the sand crushing box 2 through hinges; a fixed block 6 is horizontally installed on the inner wall of the sand crushing box 2; the fixed block 6 and the upper screen plate 4 and the lower screen plate 5 are respectively fixed by springs 7. The sand crushing box 1 is fixedly connected; a sand crushing mechanism is arranged at the upper end of the inner side of the sand crushing box 1; conveying mechanisms are arranged at both ends of the sand crushing box 2; the conveying mechanism comprises conveying boxes 10 fixedly mounted on both sides of the sand crushing box 2, and rotating rods 11 are arranged inside the two conveying boxes 10 for rotation through bearings; spiral conveying blades 12 are arranged on the outer walls of the two rotating rods 11; an inclined guide pipe 13 is inserted at the top of the conveying box 10; the end of the guide pipe 13 away from the conveying box 10 is connected to the feed box 3, and the sand crushing mechanism comprises two A rotating shaft 15 rotating at the same level, the outer walls of the two rotating shafts 15 are both provided with a crushing sand roller 16, the two rotating shafts 15 penetrate the crushing sand box 1 and extend to the outer wall and are respectively provided with gears 17; the two gears 17 are meshed with each other and a motor 18 is installed behind the crushing sand box 1; the output end of the motor 18 is connected to one of the rotating shafts 15 in a transmission manner, and the lowest ends of the upper sieve plate 4 and the lower sieve plate 5 are connected to the lower end of the conveying box 10; the upper sieve plate 4 and the lower sieve plate 5 are provided with a plurality of mesh holes, and the mesh holes are arranged on the upper sieve plate 4 and the lower sieve plate 5. The mesh holes on the upper sieve plate 4 are larger than the mesh holes on the lower sieve plate 5, and the upper sieve plate 4 and the lower sieve plate 5 are arranged oppositely. Two limit plates 8 are installed on the inner wall of the crushing sand box 2; a protective pad 9 is installed at the bottom end of the limit plate 8, and the protective pad 9 is a rubber pad; the inclination and direction of the two limit plates 8 are respectively consistent with the upper sieve plate 4 and the lower sieve plate 5, and the interior of the crushing sand box 1 is provided with engaging blocks 19 on both sides of the two crushing sand rollers 16; the interior of the crushing sand box 1 is provided with a guide plate 20 below the lower sieve plate 5.

[0021] Usage process:

[0022] When in use, start the motor 14 and the motor 2 18, and drop the small stones to be crushed from the feed box 3 into the crushing sand box 1. The motor 2 18 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the gear 17 connected thereto to rotate, and the gear 17 drives another gear 17 to rotate. The two gears 17 mesh and rotate, so that the two crushing sand rollers 16 rotate to crush the stones. The crushed sand falls on the upper sieve plate 4 and the lower sieve plate 5 for filtering. The crushed sand falls on the upper sieve plate 4 and the lower sieve plate 5 to generate force, so that The upper sieve plate 4 and the lower sieve plate 5 shake, and the spring 7 contracts, so that the crushed sand is filtered quickly, and the blocked crushed sand slides into the corresponding conveying box 10 through the inclination of the upper sieve plate 4 and the lower sieve plate 5, and the rotating rod 11 is driven to rotate by the motor 14, so that the spiral conveying blade 12 conveys the uncrushed crushed sand to the guide pipe 13, and enters the feed box 3 again through the inclination of the guide pipe 13 for re-crushing. After the crushing is completed, the crushed sand is transported out through a box or a conveying mechanism set under the guide plate 20.

[0023] In the above process, the crushed sand is filtered by setting the upper sieve plate, the lower sieve plate, the fixed block, the spring, the limit plate and the protective pad, and the upper sieve plate and the lower sieve plate connected by the hinge enable the upper sieve plate and the lower sieve plate to shake, thereby accelerating the filtering of the crushed sand and improving the screening efficiency; by installing a conveying mechanism on both sides of the crushing sand box, the crushed sand blocked by the upper sieve plate and the lower sieve plate is conveyed to the feed box, and the crushing operation is carried out again, saving labor, time and effort; the present application has a simple structure, strong practicality, and simple operation, which is worthy of promotion.

[0024] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A sand making machine for construction engineering, characterized in that: It comprises a base and a square sand crushing box and a spring arranged at the top of the base, the top of the sand crushing box is connected with a feed box; the upper screen plate and the lower screen plate are movably arranged inside the sand crushing box; the upper and lower screen plates are rotatably arranged on the inner wall of the sand crushing box through hinges; a fixed block is horizontally installed on the inner wall of the sand crushing box; the fixed block is fixedly connected to the upper and lower screen plates through springs respectively; a sand crushing mechanism is arranged at the upper end of the sand crushing box; and conveying mechanisms are arranged at both ends of the sand crushing box; The conveying mechanism includes conveying boxes fixedly installed on both sides of the crushed sand box, and the interiors of the two conveying boxes are provided with rotating rods that rotate through bearings; the outer walls of the two rotating rods are provided with spiral conveying blades; an inclined material guide pipe is inserted at the top of the conveying box; the end of the material guide pipe away from the conveying box is connected to the feed box.

2. A sand making machine for construction engineering according to claim 1, characterized in that: The sand crushing mechanism comprises two rotating shafts rotating at the same level, the outer walls of the two rotating shafts are provided with sand crushing rollers, the two rotating shafts penetrate the sand crushing box and extend to the outer walls and are respectively provided with gears; the two gears are meshed with each other.

3. A sand making machine for construction engineering according to claim 2, characterized in that: A second motor is installed behind the sand crushing box; an output end of the second motor is drivingly connected to one of the rotating shafts.

4. A sand making machine for construction engineering according to claim 1, characterized in that: The lowest ends of the upper and lower sieve plates are connected to the interior of the lower end of the conveying box; a plurality of mesh holes are arranged on the upper and lower sieve plates, and the mesh holes on the upper sieve plate are larger than the mesh holes on the lower sieve plate, and the upper and lower sieve plates are arranged oppositely.

5. A sand making machine for construction engineering according to claim 1, characterized in that: Two limit plates are installed on the inner wall of the crushing sand box; a protective pad is installed at the bottom end of the limit plate, and the protective pad is a rubber pad; the inclination and direction of the two limit plates are respectively consistent with the upper screen plate and the lower screen plate.

6. A sand making machine for construction engineering according to claim 1, characterized in that: Engaging blocks are arranged on both sides of the two sand crushing rollers inside the crushing sand box; and a guide plate is arranged below the lower screen plate inside the crushing sand box.

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