Hydraulic stone crushing equipment for roads and bridges

Abstract

The utility model belongs to the technical field of road and bridge construction, and discloses road and bridge hydraulic stone crushing equipment which comprises a device body, a feeding port is formed in the device body, a first crushing roller and a second crushing roller are rotationally connected into the device body, and a grid plate is slidably connected into the device body. A supporting plate is fixedly connected to the bottom of the grid plate, the problem that the crushing efficiency is not high when the size difference of stone is too large can be well solved through cooperation of the first crushing roller, the second crushing roller and the grid plate, small stone blocks and large stone blocks are separated through the grid plate, the small stone blocks directly enter the second crushing roller to be crushed, and the crushing efficiency is greatly improved. And large stones enter the first crushing roller for primary crushing and then enter the second crushing roller for secondary crushing, so that the large stones and small stones are separately crushed, and the crushing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge construction, in particular to a hydraulic stone crushing device for a road and bridge. Background Art

[0002] With the continuous improvement of living standards and the rapid development of urban construction, people have higher and higher requirements for the construction of municipal roads. As the foundation of the road surface and the main body of the road, the construction quality of the roadbed determines the completion quality of the entire road project. Stone is an indispensable main building material in road and bridge projects. Before the stone is put into construction and use, it is usually processed by stone crushing equipment to make its size meet the construction standards.

[0003] The existing stone crushing devices directly feed the stones into the crushing rollers for crushing during operation. The stones are of different sizes and have large differences in size. It is more difficult and slower to crush large stones, while it is easier and faster to crush small stones. When the two use the same crushing roller to crush the stones, they need to be crushed at the speed of the large stones, resulting in low efficiency. Therefore, a road and bridge hydraulic stone crushing equipment is proposed to address the above problems. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a road and bridge hydraulic stone crushing equipment, which can solve the problem of low crushing efficiency when the size difference of stones is too large.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road and bridge hydraulic stone crushing equipment, including a device main body, the device main body is provided with a feed port, a first crushing roller and a second crushing roller are rotatably connected inside the device main body, a grid plate is slidably connected inside the device main body, a support plate is fixedly connected to the bottom of the grid plate, a first motor and a second motor are respectively fixedly connected to the outside of the device main body, transmission rods are rotatably connected to both ends of the grid plate, a sliding rod is rotatably connected to one end of the transmission rod, a limiting block is fixedly connected to the side end of the support plate, and a discharge port is provided at the bottom of the device main body.

[0006] Preferably, the first pulverizing roller is located on the upper side of the second pulverizing roller, and the second pulverizing roller is located on the lower side of the grid plate.

[0007] Preferably, the grid plate is inclined and the side close to the first crushing roller is inclined downward, and the bottom of the grid plate is connected to the second crushing roller.

[0008] Preferably, the support plate is movably connected inside the device body, the first motor is transmission-connected to the first crushing roller, and the second motor is transmission-connected to the second crushing roller.

[0009] Preferably, the transmission rod is located on both sides of the first crushing roller, the sliding rod is slidably connected to the device body, and the limit block is located at one end of the support plate that is away from each other.

[0010] Preferably, the sliding rod is slidably connected to the limit block, and one end of the sliding rod abutting against the limit block is inclined and tilted downward toward the first crushing roller.

[0011] Preferably, when the first motor drives the grid plate to rotate, the grid plate drives the transmission rod to pull the sliding rod to move back and forth, and the sliding rod pushes the limit block to drive the grid plate to move upward.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model can effectively solve the problem of low crushing efficiency when the size difference of stones is too large through the cooperation of the first crushing roller, the second crushing roller and the grid plate. The small stones and the large stones are separated by the grid plate, and the small stones directly enter the second crushing roller for crushing, and the large stones enter the first crushing roller for primary crushing and then enter the second crushing roller for secondary crushing. The large stones and the small stones are crushed separately, which greatly improves the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a side partial cross-sectional view of the utility model;

[0016] Figure 3 This is a cross-sectional view of the grid plate of the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. Device body; 2. Feed inlet; 3. First crushing roller; 4. Second crushing roller; 5. Grid plate; 6. Support plate; 7. First motor; 8. Second motor; 9. Transmission rod; 10. Sliding rod; 11. Limit block; 12. Discharge outlet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4As shown, the utility model provides a road and bridge hydraulic stone crushing equipment, including a device body 1, the device body 1 is provided with a feed port 2, a first crushing roller 3 and a second crushing roller 4 are rotatably connected inside the device body 1, a grid plate 5 is slidably connected inside the device body 1, a support plate 6 is fixedly connected to the bottom of the grid plate 5, a first motor 7 and a second motor 8 are respectively fixedly connected to the outside of the device body 1, transmission rods 9 are rotatably connected to both ends of the grid plate 5, a sliding rod 10 is rotatably connected to one end of the transmission rod 9, a limited block 11 is fixedly connected to the side end of the support plate 6, and a discharge port 12 is provided at the bottom of the device body 1; by starting the first motor 7 and the second motor 8, stones are poured into the device from the feed port 2. The first motor 7 drives the first crushing roller 3 to rotate, and the first crushing roller 3 drives the sliding rod 10 to move through the transmission rod 9, and then the sliding rod 10 pushes the grid plate 5 to move upward. At this time, the stone passes through the grid plate 5, and the grid plate 5 is pressed down by the stone after the sliding rod 10 is reset, so that the grid plate 5 vibrates, and the small stones passing through the grid plate 5 are screened out and fall down. The screened stones directly enter the second crushing roller 4 for crushing, while the large stones roll down through the shaking of the grid plate 5, fall into the first crushing roller 3 for primary crushing, and then fall into the second crushing roller 4 for secondary crushing, so that the stones can be crushed into building stones of suitable sizes.

[0021] like Figure 2 and Figure 3 As shown, the first crushing roller 3 is located on the upper side of the second crushing roller 4, and the second crushing roller 4 is located on the lower side of the grid plate 5. The grid plate 5 is inclined and the side close to the first crushing roller 3 is inclined downward. The bottom of the grid plate 5 is connected to the second crushing roller 4. The support plate 6 is movably connected inside the device body 1. The first motor 7 is connected to the first crushing roller 3 by transmission, and the second motor 8 is connected to the second crushing roller 4 by transmission. By setting the first crushing roller 3 and the second crushing roller 4, the first crushing roller 3 performs the primary crushing of large stones, and the second crushing roller 4 performs the secondary crushing of small stones and stones that have been crushed primarily, so that the stones can be separated. To improve the crushing efficiency, a grid plate 5 is arranged on the upper side of the second crushing roller 4, so that when the stone passes through the grid plate 5, small pieces of stone are directly screened out by the grid plate 5 and fall into the second crushing roller 4 for crushing, while large pieces of stone enter the first crushing roller 3 for initial crushing to form small pieces of stone, which are then crushed for the second time by the second crushing roller 4. By arranging a support plate 6, the grid plate 5 can be pushed upward and then pressed downward by the stone to form a vibration, thereby preventing the stone from being stuck on the grid plate 5 and better screening out small pieces of stone. The first motor 7 and the second motor 8 are respectively used to drive the rotation of the second crushing roller 4 of the first crushing roller 3.

[0022] like Figure 3 and Figure 4As shown, the transmission rod 9 is located on both sides of the first crushing roller 3, the slide bar 10 is slidably connected to the device body 1, the limit block 11 is located at the end of the support plate 6 that is away from each other, the slide bar 10 is slidably connected to the limit block 11, and the end of the slide bar 10 abutting against the limit block 11 is inclined and tilted downward toward the first crushing roller 3. When the first motor 7 drives the grid plate 5 to rotate, the grid plate 5 drives the transmission rod 9 to pull the slide bar 10 to reciprocate, and the slide bar 10 pushes the limit block 11 to drive the grid plate 5 to move upward; through the transmission rod 9 and the slide bar 10, the transmission rod 9 moves with the first crushing roller 3. The crushing roller 3 rotates and moves, thereby driving the slide bar 10 to slide back and forth between the device body 1 and the limit block 11, so as to repeatedly push the limit block 11 to move upward, causing the grid plate 5 to shake. When the first motor 7 drives the grid plate 5 to rotate, the grid plate 5 drives the transmission rod 9 to pull the slide bar 10 to move back and forth. By setting the connecting surface of the slide bar 10 and the limit block 11 to an inclined shape and tilting downward toward the first crushing roller 3, when the slide bar 10 is pulled out again, it will push the limit block 11 to rise, and then the limit block 11 drives the grid plate 5 to move upward.

[0023] The working principle and use process of the utility model are as follows: when working, the first motor 7 and the second motor 8 are started, and stones are poured in from the feed port 2. The first motor 7 drives the first crushing roller 3 to rotate, and the first crushing roller 3 drives the sliding rod 10 to move through the transmission rod 9, and then the sliding rod 10 pushes the grid plate 5 to move upward. At this time, the stone passes through the grid plate 5, and the grid plate 5 is pressed down by the stone after the sliding rod 10 is reset, so that the grid plate 5 vibrates, and the small pieces of stone passing through the grid plate 5 are screened out and fall down. The screened stones directly enter between the second crushing rollers 4 for crushing, and the large pieces of stone roll downward through the shaking of the grid plate 5, fall into the first crushing rollers 3 for primary crushing, and then fall into the second crushing rollers 4 for secondary crushing, so that the stone can be crushed into building stones of suitable size.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic stone crushing device for roads and bridges, comprising a device body (1), characterized in that: The device body (1) is provided with a feed port (2), a first crushing roller (3) and a second crushing roller (4) are rotatably connected inside the device body (1), a grid plate (5) is slidably connected inside the device body (1), a support plate (6) is fixedly connected to the bottom of the grid plate (5), a first motor (7) and a second motor (8) are respectively fixedly connected to the outside of the device body (1), transmission rods (9) are rotatably connected to the two ends of the grid plate (5), one end of the transmission rod (9) is rotatably connected to a sliding rod (10), a side end of the support plate (6) is fixedly connected to a limiting block (11), and a discharge port (12) is provided at the bottom of the device body (1).

2. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: The first crushing roller (3) is located on the upper side of the second crushing roller (4), and the second crushing roller (4) is located on the lower side of the grid plate (5).

3. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: The grid plate (5) is inclined and the side close to the first crushing roller (3) is inclined downward, and the bottom of the grid plate (5) is connected to the second crushing roller (4).

4. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: The support plate (6) is movably connected inside the device body (1); the first motor (7) is transmission-connected to the first crushing roller (3); and the second motor (8) is transmission-connected to the second crushing roller (4).

5. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: The transmission rod (9) is located on both sides of the first crushing roller (3), the sliding rod (10) is slidably connected to the device body (1), and the limit block (11) is located at one end of the support plate (6) that is away from each other.

6. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: The sliding rod (10) is slidably connected to the limit block (11); one end of the sliding rod (10) abutting against the limit block (11) is inclined and tilted downward toward the first crushing roller (3).

7. The hydraulic stone crushing equipment for roads and bridges according to claim 1 is characterized by: When the first motor (7) drives the grid plate (5) to rotate, the grid plate (5) drives the transmission rod (9) to pull the sliding rod (10) to move back and forth, and the sliding rod (10) pushes the limit block (11) to drive the grid plate (5) to move upward.

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