Stone crusher for civil engineering

Abstract

The stone crusher for civil engineering comprises a box body, a sliding groove is formed in the inner wall of the box body, shaking mechanisms facilitating stone screening are arranged on the side wall of the box body, and each shaking mechanism comprises a mounting shell, a second motor, a rotating rod, a sector gear, an annular rack plate, an ejector rod, a supporting rod, a fixing rod, a spring and a fixing block. The mounting shell is fixedly connected to the side wall of the box body, the second motor is fixedly connected to the side wall of the mounting shell, the output end of the second motor is fixedly connected with the rotating rod, and the sector gear is fixedly connected to the end of the rotating rod. By designing the fan-shaped gear, the annular rack plate, the screen frame and other components, the second motor drives the fan-shaped gear to rotate and be meshed with the annular rack plate, so that the fan-shaped gear slides up and down, an ejector rod at the top of the fan-shaped gear impacts a supporting plate to slide upwards, and stones at the top of the screen frame can rapidly fall into a discharging opening through shaking; and the sieving efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a crusher for civil engineering. Background Technique

[0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to both the materials, equipment used, and the technical activities such as surveying, design, construction, maintenance, and repair, and also the objects of engineering construction.

[0003] For the current crushers, an existing crusher for civil engineering disclosed in the patent publication number "CN209423721U" screens the crushed stones by setting a leakage plate. However, the leakage plate is fixedly connected to the machine body, and only the crushed stones can fall through the sieve naturally. Its working efficiency is slow, the sieving effect is not good, and screening is still required for secondary crushing. Accordingly, this application proposes a crusher for civil engineering. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a crusher for civil engineering.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A crusher for civil engineering, including a box body. A chute is provided on the inner wall of the box body. A shaking mechanism for facilitating the screening of stones is provided on the side wall of the box body. Each group of the shaking mechanisms includes a mounting shell, a second motor, a rotating rod, a sector gear, an annular rack plate, a top rod, a support rod, a fixed rod, a spring, and a fixed block. The mounting shell is fixedly connected to the side wall of the box body. The second motor is fixedly connected to the side wall of the mounting shell. The output end of the second motor is fixedly connected to the rotating rod. The sector gear is fixedly connected to the end of the rotating rod. The rotating rod is rotatably connected inside the mounting shell. The sector gear meshes with the annular rack plate. The top rod is fixedly connected to the upper end of the annular rack plate. A slide rail is fixedly connected to the inner wall of the mounting shell. The annular rack plate is slidably connected to the side wall of the slide rail. The support rod slidably penetrates inside the chute. The fixed rod is fixedly connected to the top of the support rod. One end of the fixed rod away from the support rod is fixedly connected to the spring. The other end of the spring is fixedly connected to the bottom of the fixed block. The fixed block is fixedly connected to the side wall of the box body. A crushing mechanism for facilitating the crushing of stones is provided inside the box body.

[0007] Preferably, a screen frame is fixedly connected to the end of the support rod. A screen plate is slidably connected inside the screen frame. A groove is provided on the side wall of the screen plate. A screw rod is fixedly connected to the side wall of the screen frame. A nut is threadedly connected to the surface of the screw rod.

[0008] Preferably, the crushing mechanism includes a first motor, a connecting shaft, two crushing rollers, two belt pulleys and a belt. The first motor is fixedly connected to the side wall of the box body, and the crushing rollers are rotatably connected inside the box body. The output end of the first motor is fixedly connected to the connecting shaft, and the connecting shaft is fixedly connected to the adjacent crushing roller. One end of each of the two crushing rollers penetrates through the side wall of the box body, and the belt pulley is fixedly connected to the adjacent crushing roller through a short shaft. The two belt pulleys are connected by a belt transmission.

[0009] Preferably, a feed inlet is fixedly connected to the top of the box body, and a discharge outlet is provided at the bottom of the box body.

[0010] Preferably, support columns are fixedly connected to the bottom of the box body.

[0011] Preferably, an annular groove for facilitating the sliding of the sieve plate is provided inside the sieve frame.

[0012] The utility model has the following beneficial effects:

[0013] 1. By designing components such as a sector gear, an annular rack plate and a sieve frame, the second motor drives the sector gear to rotate and mesh with the annular rack plate, so that it slides up and down. The ejector rod at its top impacts the support plate and slides upward, enabling the stones on the top of the sieve frame to quickly fall into the discharge port through shaking, improving its screening efficiency.

[0014] 2. By designing components such as a sieve plate, a screw rod and a nut, by rotating the nut to separate it from the screw rod, the sieve plate can be quickly taken out of the sieve frame, facilitating the cleaning and replacement of the sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a gravel crusher for civil engineering proposed by the utility model;

[0016] Figure 2 is a schematic structural diagram of an installation shell, a second motor, a rotating rod, a sector gear, an annular rack plate, an ejector rod, a slide rail, a support rod, a fixed rod, a spring and a fixed block in the utility model;

[0017] Figure 3 is a schematic structural diagram of a sieve frame, a sieve plate, a groove, a screw rod and a nut in the utility model;

[0018] Figure 4 is a schematic structural diagram of a nut and a slider in the utility model.

[0019] In the figure: 1 box body, 101 slide, 2 feed port, 3 crushing roller, 301 first motor, 302 connecting shaft, 303 pulley, 304 belt, 4 mounting shell, 401 second motor, 402 rotating rod, 403 sector gear, 404 annular rack plate, 405 push rod, 406 slide rail, 407 support rod, 408 fixed rod, 409 spring, 410 fixed block, 5 screen frame, 501 screen plate, 502 groove, 503 screw, 504 nut, 6 discharge port, 7 pillar. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1 to 4 A stone crusher for civil engineering includes a box body 1, a slide groove 101 is opened on the inner wall of the box body 1, and a shaking mechanism for sieving stones is arranged on the side wall of the box body 1. Each shaking mechanism includes a mounting shell 4, a second motor 401, a rotating rod 402, a sector gear 403, an annular rack plate 404, a top rod 405, a supporting rod 407, a fixing rod 408, a spring 409 and a fixing block 410. The mounting shell 4 is fixedly connected to the side wall of the box body 1, and the second motor 401 The output end of the second motor 401 is fixedly connected to the side wall of the mounting shell 4, the sector gear 403 is fixedly connected to the end of the rotating rod 402, the rotating rod 402 is rotatably connected in the mounting shell 4, the sector gear 403 and the annular rack plate 404 are meshed with each other, the top rod 405 is fixedly connected to the upper end of the annular rack plate 404, the inner wall of the mounting shell 4 is fixedly connected with a slide rail 406, and the annular rack plate 404 is slidably connected to the side wall of the slide rail 406 , the support rod 407 slides through the inside of the slide 101, the fixed rod 408 is fixedly connected to the top of the support rod 407, the fixed rod 408 is fixedly connected to the spring 409 at one end away from the support rod 407, the other end of the spring 409 is fixedly connected to the bottom of the fixed block 410, the fixed block 410 is fixedly connected to the side wall of the box body 1, and the inside of the box body 1 is provided with a crushing mechanism for crushing stones. The crushing mechanism includes a first motor 301, a connecting shaft 302, two crushing rollers 3, two pulleys 303 and a belt 304. The first motor 301 is fixedly connected to the side wall of the box body 1, and the crushing roller 3 is rotatably connected in the box body 1. The output end of the first motor 301 is fixedly connected to the connecting shaft 302, and the connecting shaft 302 is fixedly connected to the adjacent crushing roller 3. One end of the two crushing rollers 3 runs through the side wall of the box body 1, and the pulley 303 is fixedly connected to the adjacent crushing roller 3 through a short shaft. The two pulleys 303 are connected by belt 304.

[0022] A protective plate is installed on the inner wall of the box body 1 to prevent stones from damaging the inner wall of the box body 1 during the crushing process, thereby increasing its service life.

[0023] The end of the support rod 407 is fixedly connected to the screen frame 5, and the screen plate 501 is slidably connected inside the screen frame 5. The side wall of the screen plate 501 is provided with a groove 502, and the side wall of the screen frame 5 is fixedly connected to a screw 503, and the surface of the screw 503 is threadedly connected with a nut 504. The top of the box body 1 is fixedly connected to the feed port 2, the bottom of the box body 1 is provided with a discharge port 6, the bottom of the box body 1 is fixedly connected to a support 7, and the inside of the screen frame 5 is provided with an annular groove for facilitating the sliding of the screen plate 501.

[0024] The top rod 405 is located at the middle of the bottom of the support rod 407, so that it is evenly stressed during the collision and more stable. Its feed port 2 and discharge port 6 are concave inside and convex outside, which is convenient for better loading and discharging.

[0025] In the utility model, firstly, stones are poured in from the feed port 2, and the first motor 301 is driven to rotate, and the connecting shaft 302 at the top drives the crushing roller 3 to rotate. At the same time, the two crushing rollers 3 inside the box body 1 rotate at the same time through the belt 304, so as to crush the stones and drop them onto the screen frame 5 at the bottom. The second motor 401 is started to rotate and drive the rotating rod 402 to rotate, and the fan gear 403 at the top also rotates accordingly. When the fan gear 403 is engaged with the rack of the right annular rack plate 404, the annular rack plate 404 slides upward through the slide rail 406, and hits the support rod 407 to make it force the compression spring 409 and slide on the slide rail 406, and at the same time drives the screen frame 5 to shake. When the fan gear 403 is engaged with the left annular rack plate 404, it slides downward. This is repeated so that the screen frame 5 can screen the crushed stones, and the screened stones are discharged from the discharge port 6.

[0026] When the sieve plate 501 and the sieve frame 5 need to be cleaned, the nut 504 is rotated to separate the nut 504 from the screw 503, and the sieve plate 501 can be taken out from the sieve frame 5 for cleaning. After cleaning, the groove 502 on the sieve plate 501 is aligned with the screw 503 and slid into the inside of the sieve frame 5, and fixed with the nut 504.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stone crusher for civil engineering, comprising a housing (1), characterized in that: The inner wall of the box body (1) is provided with a slide groove (101), and the side wall of the box body (1) is provided with a shaking mechanism for facilitating stone screening. Each group of the shaking mechanisms comprises a mounting shell (4), a second motor (401), a rotating rod (402), a sector gear (403), an annular rack plate (404), a top rod (405), a support rod (407), a fixing rod (408), a spring (409) and a fixing block (410). The mounting shell (4) is fixedly connected to the side wall of the box body (1), the second motor (401) is fixedly connected to the side wall of the mounting shell (4), the output end of the second motor (401) is fixedly connected to the rotating rod (402), the sector gear (403) is fixedly connected to the end of the rotating rod (402), and the rotating rod (402) is rotatably connected in the mounting shell (4). The sector gear (403) is meshed with the annular rack plate (404), the top rod (405) is fixedly connected to the upper end of the annular rack plate (404), the inner wall of the mounting shell (4) is fixedly connected with a slide rail (406), the annular rack plate (404) is slidably connected to the side wall of the slide rail (406), the support rod (407) slides through the inside of the slide groove (101), the fixed rod (408) is fixedly connected to the top of the support rod (407), the end of the fixed rod (408) away from the support rod (407) is fixedly connected to the spring (409), the other end of the spring (409) is fixedly connected to the bottom of the fixed block (410), the fixed block (410) is fixedly connected to the side wall of the box body (1), and the inside of the box body (1) is provided with a crushing mechanism for crushing stones.

2. A stone crusher for civil engineering according to claim 1, characterized in that: The end of the support rod (407) is fixedly connected to a screen frame (5), and a screen plate (501) is slidably connected inside the screen frame (5). The side wall of the screen plate (501) is provided with a groove (502). The side wall of the screen frame (5) is fixedly connected to a screw rod (503), and the surface of the screw rod (503) is threadedly connected to a nut (504).

3. A stone crusher for civil engineering according to claim 1, characterized in that: The crushing mechanism comprises a first motor (301), a connecting shaft (302), two crushing rollers (3), two pulleys (303) and a belt (304); the first motor (301) is fixedly connected to the side wall of a box body (1); the crushing roller (3) is rotatably connected in the box body (1); the output end of the first motor (301) is fixedly connected to the connecting shaft (302); the connecting shaft (302) is fixedly connected to adjacent crushing rollers (3); one end of the two crushing rollers (3) passes through the side wall of the box body (1); the pulley (303) is fixedly connected to the adjacent crushing rollers (3) via a short shaft; and the two pulleys (303) are connected by a belt (304).

4. A stone crusher for civil engineering according to claim 1, characterized in that: The top of the box body (1) is fixedly connected with a feed port (2), and the bottom of the box body (1) is provided with a discharge port (6).

5. A stone crusher for civil engineering according to claim 1, characterized in that: The bottom of the box body (1) is fixedly connected with a support column (7).

6. A stone crusher for civil engineering according to claim 2, characterized in that: The screen frame (5) is provided with an annular groove inside to facilitate the sliding of the screen plate (501).

Images