Construction engineering construction crushing device

Abstract

The utility model discloses a crushing device for construction engineering construction, which belongs to the technical field of crushing and comprises a mounting frame, a crushing mechanism fixedly mounted at the top of the mounting frame and used for crushing gravel and a screening mechanism arranged on the mounting frame and used for screening the gravel. The screening mechanism comprises a supporting plate fixedly installed on the installation frame, a telescopic rod fixedly installed on the top of the supporting plate, a first spring arranged on the telescopic rod in a sleeving mode, a screening box fixedly installed at the movable end of the telescopic rod, a sliding strip fixedly installed in the screening box and a screening plate installed in the screening box in a sliding mode. Through cooperative use of all the devices, the screen plate can be fixed into the screen box through the fixing rods, so that crushed sand and gravel are screened, meanwhile, a worker can move the screen plate out of the interior of the screen box by adjusting the fixing rods, and the sand and gravel still needing to be crushed again can be conveniently collected.

Description

Technical Field

[0001] This utility model relates to the field of crushing technology, specifically a crushing device for construction engineering. Background Art

[0002] Due to their good hardness and stable chemical properties, sand and gravel are often used as high-quality building materials and concrete raw materials in housing, roads, highways, railways, engineering and other fields. Due to the shortage of sand and gravel resources, people have begun to use crushed stone obtained from crushed construction waste to replace sand and gravel in order to meet the demand for sand and gravel in construction projects.

[0003] An investigation revealed that a Chinese utility model patent discloses a construction crushing device (publication number: CN221433229U), comprising a housing, an internal crushing mechanism, a filtering mechanism below the crushing mechanism, a motor, the back of the motor being fixedly connected to the inner wall of the housing, a rotating shaft being fixedly connected to the output end of the motor, a small gear being fixedly connected through the middle of the rotating shaft, and the end of the rotating shaft being fixedly rotatably connected to the inner wall of the housing; and a support roller shaft, the inner wall of which is fixedly connected through the outer wall of the rotating shaft.

[0004] In the aforementioned patent, the raw materials such as sand and gravel are fully crushed by a crushing mechanism, and the incompletely crushed sand and gravel are screened by a filter screen. Then, the incompletely crushed sand and gravel need to be crushed again. Since the filter screen is located inside the outer shell of the device, the incompletely crushed sand and gravel remains on the filter screen inside the outer shell after screening. When removing the sand and gravel from the filter screen, the space is limited, which may make it more troublesome for the staff to handle.

[0005] Therefore, this utility model provides a construction crushing device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a construction crushing device for construction projects, which aims to solve the problems mentioned in the background art.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a construction crushing device, which includes a mounting frame, a crushing mechanism fixedly installed on the top of the mounting frame for crushing sand and gravel, and a screening mechanism set on the mounting frame for screening sand and gravel.

[0010] The screening mechanism includes a support plate fixedly installed on the mounting frame, a telescopic rod fixedly installed on the top of the support plate, a first spring sleeved on the telescopic rod, a screen box fixedly installed on the movable end of the telescopic rod, a slide bar fixedly installed inside the screen box, and a screen plate slidably installed inside the screen box.

[0011] As a preferred technical solution of this application, one end of the first spring is fixedly connected to the support plate, and the other end of the first spring is fixedly connected to the screen box. Vibration motors are fixedly connected to both sides of the screen box. A sliding groove for the screen plate to slide is opened on the screen box, and one side of the screen plate is in contact with one side of the slide bar.

[0012] As a preferred technical solution of this application, the crushing mechanism includes a crushing box fixedly installed on the top of the mounting frame, a crushing shaft rotatably installed inside the crushing box, and a discharge hopper fixedly installed at the bottom of the crushing box.

[0013] As a preferred technical solution of this application, a drive motor is fixedly connected to the crushing box, both ends of the crushing shaft pass through the crushing box, one end of the crushing shaft is fixedly connected to the output end of the drive motor, and the other end of the crushing shaft is fixedly connected to a gear. The inner cavity of the discharge hopper is connected to the inner cavity of the crushing box.

[0014] As a preferred technical solution of this application, an installation block and a limiting block are fixedly connected to one side of the sieve box. A fixing rod for fixing the sieve plate is movably connected to the installation block. A second spring is sleeved on the fixing rod. One end of the second spring is fixedly connected to the fixing rod, and the other end of the second spring is fixedly connected to the installation block. A slot adapted to the fixing rod is opened on the sieve plate.

[0015] As a preferred technical solution of this application, a collection box is movably connected to the mounting frame, the collection box is located directly below the screen box, and the discharge hopper is located directly above the screen box.

[0016] (3) Beneficial effects

[0017] This utility model has a simple structure and is easy to use. By setting up a sieve box, a sieve plate and a fixing rod, the sieve plate can be fixed inside the sieve box by the fixing rod, so as to screen the crushed sand and gravel. At the same time, the operator can adjust the fixing rod to move the sieve plate out of the sieve box, so as to collect the sand and gravel that still need to be crushed again. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a construction crushing device;

[0019] Figure 2 This is a schematic diagram of the installation of a screen box in a construction crushing device.

[0020] Figure 3This is a schematic diagram of the installation of a screen plate in a construction crushing device.

[0021] Figure 4 This is a schematic diagram of the installation of the crushing shaft in a construction crushing device.

[0022] Figure 5 for Figure 3 Enlarged view of point A in the image.

[0023] In the picture:

[0024] 1. Mounting frame; 2. Crushing box; 3. Screen box; 4. Sliding bar; 5. Screen plate; 6. Vibrating motor; 7. Support plate; 8. Telescopic rod; 9. First spring; 10. Fixing rod; 11. Second spring; 12. Mounting block; 13. Limiting block; 14. Discharge hopper; 15. Crushing shaft; 16. Drive motor; 17. Gear; 18. Collection box. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] This utility model provides a construction crushing device, such as... Figure 1 , Figure 2 and Figure 3 As shown, the crushing device includes a mounting frame 1, a crushing mechanism fixedly mounted on the top of the mounting frame 1 for crushing sand and gravel, and a screening mechanism set on the mounting frame 1 for screening sand and gravel.

[0027] The screening mechanism includes a support plate 7 fixedly installed on the mounting frame 1, a telescopic rod 8 fixedly installed on the top of the support plate 7, a first spring 9 sleeved on the telescopic rod 8, a screen box 3 fixedly installed on the movable end of the telescopic rod 8, a slide bar 4 fixedly installed inside the screen box 3, and a screen plate 5 slidably installed inside the screen box 3.

[0028] One end of the first spring 9 is fixedly connected to the support plate 7, and the other end of the first spring 9 is fixedly connected to the sieve box 3. Vibration motors 6 are fixedly connected to both sides of the sieve box 3. A sliding groove for the sieve plate 5 to slide is opened on the sieve box 3, and one side of the sieve plate 5 is in contact with one side of the slide bar 4.

[0029] When in use, the crushing device first crushes the sand and gravel. The crushed sand and gravel fall into the screen box 3. The screen box 3 is equipped with a screen plate 5, which can screen the sand and gravel. Larger sand and gravel will remain in the screen box 3. The screen plate 5 can be removed from the inside of the screen box 3, which makes it convenient for the staff to handle the larger sand and gravel in the screen box 3.

[0030] The sieve box 3 and sieve plate 5 rely on the vibrating motor 6 to achieve the vibrating screening of sand and gravel. The sliding bar 4 provides convenience for the sieve plate 5 to be installed inside the sieve box 3 and can also support the sieve plate 5, improving the stability of the sieve plate 5. The first spring 9 plays a certain role in buffering when the sieve box 3 vibrates, improving the service life of the sieve box 3. The telescopic rod 8 is used to preset the vibration trajectory of the sieve box 3, improving the stability of the sieve box 3 during vibration.

[0031] Furthermore, in order for the sand and gravel to be crushed, such as Figure 1 , Figure 2 and Figure 4 As shown, the crushing mechanism includes a crushing box 2 fixedly installed on the top of the mounting frame 1, a crushing shaft 15 rotatably installed inside the crushing box 2, and a discharge hopper 14 fixedly installed at the bottom of the crushing box 2.

[0032] A drive motor 16 is fixedly connected to the crushing box 2. Both ends of the crushing shaft 15 pass through the crushing box 2. One end of the crushing shaft 15 is fixedly connected to the output end of the drive motor 16, and the other end of the crushing shaft 15 is fixedly connected to a gear 17. The inner cavity of the discharge hopper 14 is connected to the inner cavity of the crushing box 2.

[0033] The sand and gravel are fed into the crushing box 2. There are two crushing shafts 15 inside the crushing box 2. Gears 17 are installed on both crushing shafts 15 and the two gears 17 mesh with each other. When one crushing shaft 15 rotates, it can drive the other crushing shaft 15 to rotate together through the influence of the gear 17. The two crushing shafts 15 rotate in opposite directions, thereby realizing the crushing of the sand and gravel in the crushing box 2.

[0034] The drive motor 16 is installed on the crushing box 2, providing a stable guarantee for its own operation. The drive motor 16 is only connected to one crushing shaft 15. After the drive motor 16 is started, under the influence of the gear 17, the drive motor 16 can drive the two crushing shafts 15 to rotate in opposite directions, thereby crushing sand and gravel.

[0035] It should be noted that, in order for the sieve plate 5 to be fixed, such as Figure 1 , Figure 3 and Figure 5As shown, a mounting block 12 and a limiting block 13 are fixedly connected to one side of the sieve box 3. A fixing rod 10 for fixing the sieve plate 5 is movably connected to the mounting block 12. A second spring 11 is sleeved on the fixing rod 10. One end of the second spring 11 is fixedly connected to the fixing rod 10, and the other end of the second spring 11 is fixedly connected to the mounting block 12. A slot adapted to the fixing rod 10 is opened on the sieve plate 5.

[0036] Before installing the screen plate 5 inside the screen box 3, the fixing rod 10 needs to be pulled upward and rotated so that the limiting block 13 abuts against the handle on the fixing rod 10, providing installation space for the screen plate 5. After the screen plate 5 is completely inserted into the screen box 3, the fixing rod 10 is rotated by the handle on the fixing rod 10, and the fixing rod 10 moves downward and inserts into the slot on the screen plate 5, thereby fixing the screen plate 5. The second spring 11 can always push the fixing rod 10 through its own force, so that the fixing rod 10 is stably inserted into the slot. When it is necessary to remove the screen plate 5, simply pull upward and rotate the fixing rod 10 so that the limiting block 13 abuts against the handle on the fixing rod 10, and the fixed screen plate 5 can be released.

[0037] Furthermore, to facilitate the handling of the crushed sand and gravel by staff, such as... Figure 1 , Figure 2 and Figure 4 As shown, a collection box 18 is movably connected to the mounting frame 1. The collection box 18 is located directly below the screen box 3, and the discharge hopper 14 is located directly above the screen box 3.

[0038] After being crushed in the crushing box 2, the sand and gravel will pass through the discharge hopper 14 into the screen box 3. After screening, the smaller sand and gravel will fall into the collection box 18 for the staff to handle, while the larger sand and gravel will remain in the screen box 3. At this time, the staff can replace the collection box 18 and then remove the screen plate 5 in the screen box 3, so that the larger sand and gravel will fall into the collection box 18 for further crushing.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A construction crushing device, characterized in that: The crushing device includes a mounting frame (1), a crushing mechanism fixedly mounted on the top of the mounting frame (1) for crushing sand and gravel, and a screening mechanism set on the mounting frame (1) for screening sand and gravel. The screening mechanism includes a support plate (7) fixedly installed on the mounting frame (1), a telescopic rod (8) fixedly installed on the top of the support plate (7), a first spring (9) sleeved on the telescopic rod (8), a screen box (3) fixedly installed on the movable end of the telescopic rod (8), a slide bar (4) fixedly installed inside the screen box (3), and a screen plate (5) slidably installed inside the screen box (3).

2. The construction crushing device according to claim 1, characterized in that: One end of the first spring (9) is fixedly connected to the support plate (7), and the other end of the first spring (9) is fixedly connected to the sieve box (3). Vibration motors (6) are fixedly connected to both sides of the sieve box (3). A sliding groove for sliding the sieve plate (5) is provided on the sieve box (3). One side of the sieve plate (5) is in contact with one side of the slide bar (4).

3. The construction crushing device according to claim 1, characterized in that: The crushing mechanism includes a crushing box (2) fixedly installed on the top of the mounting frame (1), a crushing shaft (15) rotatably installed inside the crushing box (2), and a discharge hopper (14) fixedly installed at the bottom of the crushing box (2).

4. A construction crushing device according to claim 3, characterized in that: A drive motor (16) is fixedly connected to the crushing box (2). Both ends of the crushing shaft (15) pass through the crushing box (2). One end of the crushing shaft (15) is fixedly connected to the output end of the drive motor (16). The other end of the crushing shaft (15) is fixedly connected to a gear (17). The inner cavity of the discharge hopper (14) is connected to the inner cavity of the crushing box (2).

5. A construction crushing device according to claim 1, characterized in that: A mounting block (12) and a limiting block (13) are fixedly connected to one side of the sieve box (3). A fixing rod (10) for fixing the sieve plate (5) is movably connected to the mounting block (12). A second spring (11) is sleeved on the fixing rod (10). One end of the second spring (11) is fixedly connected to the fixing rod (10), and the other end of the second spring (11) is fixedly connected to the mounting block (12). A slot adapted to the fixing rod (10) is opened on the sieve plate (5).

6. A construction crushing device according to claim 3, characterized in that: A collection box (18) is movably connected to the mounting frame (1), the collection box (18) is located directly below the screen box (3), and the discharge hopper (14) is located directly above the screen box (3).

Images