Gravel mixing equipment for constructional engineering

Abstract

The utility model relates to the technical field of gravel mixing, in particular to gravel mixing equipment for constructional engineering. According to the technical scheme, the device comprises a stirring barrel, a feeding hopper is arranged at the top of the stirring barrel, a rotating shaft is arranged at the position, located in the stirring barrel, of the output end of a motor, stirring blades are arranged on the outer ring of the rotating shaft, a crushing mechanism is arranged on the side, located on the outer wall, of the stirring barrel, and a screen is connected to the top end of a moving rod. Four same damping assemblies are arranged on the top face of the screen, a material receiving frame is arranged on the outer ring of the transverse rod, and a vibration motor is arranged on the bottom face of the screen. Through the arrangement of the screen and the crushing mechanism, screening can be carried out before mixing, screened large-particle gravel is crushed and then mixed, the mixing uniformity and efficiency are improved, through the arrangement of the damping assembly and the material receiving frame, the gravel can be prevented from directly acting on the screen, the screen is protected, and the service life of the gravel is prolonged. And the use function of the screen is further improved.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel mixing technology, and in particular to a sand and gravel mixing equipment for construction engineering. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various buildings and their ancillary facilities and the installation of supporting lines, pipelines and equipment. Construction engineering sand and gravel mixing equipment, usually called sand and gravel mixing machinery or sand and gravel mixers, is a mechanical device used to uniformly mix two or more materials such as sand, stone, cement, water, etc. The particle size of the sand and gravel mixture may have a certain impact on the efficiency and quality of mixing. Before mixing, the sand and gravel need to be screened. At the same time, the equipment may be damaged when dumping sand and gravel. Therefore, it is necessary to propose a construction engineering sand and gravel mixing equipment. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the background technology by proposing a sand and gravel mixing device for construction engineering.

[0004] The technical solution of this utility model: A sand and gravel mixing device for construction engineering, including a mixing tank, a feed hopper at the top of the mixing tank, a motor at the bottom of the mixing tank, a rotating shaft inside the mixing tank at the output end of the motor, mixing blades on the outer ring of the rotating shaft, a discharge port at the bottom of the mixing tank on one side of the motor, a support on the outer wall of the mixing tank, a crushing mechanism on one side of the outer wall of the mixing tank, and multiple sets of limiting blocks connected to one side of the inner wall of the mixing tank. Each limiting block has a sliding rod at its top, and a screen is connected to the top of each sliding rod. Four identical reducing devices are provided on the top surface of the screen. The vibration damping assembly includes a T-shaped block and a base plate. Connecting rods are provided on both sides of the T-shaped block and the base plate. Sliding frames are provided on both sides of the T-shaped block. A sliding block is slidably mounted on the inner side of each sliding frame. A guide rod is provided on one side of each sliding frame, passing through the sliding block and fixedly connected to the T-shaped block. A spring is provided at the opposite end of the guide rod. A damper is provided between the T-shaped block and the base plate. A common support frame is provided on the top surface of each vibration damping assembly. A cross-shaped support column is provided on the top surface of the support frame. The cross-shaped support column includes a vertical rod and a horizontal rod. A receiving frame is provided around the outer ring of the horizontal rod. A vibration motor is provided on the bottom surface of the screen.

[0005] Preferably, the crushing mechanism includes a crushing box fixedly installed on one side of the mixer, and two sets of crushing rollers are rotatably installed inside the crushing box. Each crushing roller is connected to a gear at one end, and the gears mesh with each other on the sides that are close to each other. One end of one crushing roller is connected to a drive motor, and a feed inlet is opened on one side of the mixing tank corresponding to the crushing box.

[0006] Preferably, a guide plate is provided near the inner wall of the mixing tank, and the guide plate extends into the crushing mechanism through the feed inlet.

[0007] Preferably, the rotating receiving frame includes a sleeve rotatably disposed on the outer ring of the crossbar, the outer surface of the sleeve being uniformly provided with multiple sets of material plates, and a rubber sleeve being sleeved and connected between the sleeve and the crossbar.

[0008] Preferably, springs are sleeved and connected to both ends of the movable rod, and the ends of the springs that are close to each other are fixedly connected to the limiting block. A limiting plate is connected to the bottom end of the movable rod, and the bottom end of the lower spring is connected to the limiting plate.

[0009] Preferably, the discharge port is provided with a discharge pipe, and a valve is provided on the outer ring of the discharge pipe.

[0010] Preferably, the receiving rack is located below the feed hopper near the feed inlet.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] This invention, through the setting of a screen and a crushing mechanism, allows for screening before mixing, separating out large particles of sand and gravel for crushing before mixing, thereby improving the uniformity and efficiency of mixing. The setting of shock-absorbing components and a receiving rack can prevent sand and gravel from directly acting on the screen, thus protecting the screen and further enhancing its functionality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0015] Figure 3 This is a partial structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the shock absorption component in this utility model.

[0017] Reference numerals in the attached diagram: 1. Mixing tank; 2. Feed hopper; 3. Motor; 4. Rotating shaft; 5. Mixing blade; 6. Discharge port; 7. Support; 8. Limiting block; 9. Moving rod; 10. Screen; 11. Shock absorption assembly; 111. T-block; 112. Base plate; 113. Connecting rod; 114. Sliding frame; 115. Sliding block; 116. Guide rod; 117. Spring 1; 118. Damper; 12. Support frame; 13. Cross support column; 15. Receiving frame; 16. Vibration motor; 17. Crushing box; 18. Crushing roller; 19. Spring 2. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figures 1 to 4 As shown, the present invention proposes a sand and gravel mixing equipment for construction engineering, including a mixing tank 1, a feeding hopper 2 at the top of the mixing tank 1, the feeding hopper 2 being fixedly connected to the mixing tank 1, a motor 3 at the bottom of the mixing tank 1, the motor 3 being fixedly connected to the mixing tank 1, a rotating shaft 4 located inside the mixing tank 1 at the output end of the motor 3, the rotating shaft 4 being rotatably connected to the bottom of the mixing tank 1, a stirring blade 5 on the outer ring of the rotating shaft 4, the stirring blade 5 being fixedly connected to the rotating shaft 4, the stirring blade 5 being shaped like a trident, the special-shaped stirring blade 5 can increase the contact area between the stirring blade 5 and the sand and gravel material, and improve the mixing efficiency, a discharge port 6 located at the bottom of the mixing tank 1 on one side of the motor 3, the discharge port 6 being provided with a discharge pipe, the discharge pipe being fixedly connected to the mixing tank 1, a valve on the outer ring of the discharge pipe, the valve being fixedly connected to the discharge pipe, the discharge can be controlled by the valve;

[0021] A support 7 is provided on the outer wall of the mixing tank 1. The support 7 is fixedly connected to the mixing tank 1. The support 7 provides necessary support and stability to the mixing tank 1 to ensure smooth mixing. A crushing mechanism is provided on one side of the outer wall of the mixing tank 1. The crushing mechanism includes a crushing box 17 fixedly installed on one side of the mixing tank 1. Two sets of crushing rollers 18 are rotatably installed inside the crushing box 17. A gear is connected to one end of each crushing roller 18, and the gears mesh with each other on the sides closest to each other. One end of one crushing roller 18 is connected to a drive motor. A feed port is opened on one side of the mixing tank 1 corresponding to the crushing box 17. Since this is an existing mature technology, it is not described in detail in the specification. Multiple sets of limiting blocks 8 are connected to one side of the inner wall of the mixing tank 1. Each limiting block 8 has a sliding rod 9 at its top. Both ends of the moving rod 9 are fitted with springs 19. The ends of the springs 19 that are close to each other are fixedly connected to the limiting blocks 8. A limiting plate is connected to the bottom of the moving rod 9. The limiting plate is fixedly connected to the moving rod 9. The bottom end of the spring 19 located below is connected to the limiting plate. A screen 10 is connected to the top of the moving rod 9. A guide plate is set near the inner wall of the screen 10. The screen 10 is fixedly connected to the guide plate. The guide plate extends into the crushing mechanism through the feed port. By setting up the crushing mechanism and the guide plate, the large particles of sand and gravel screened out can be introduced into the crushing box 17 for crushing. After crushing, the materials are mixed, which can improve the uniformity of material mixing.

[0022] Four identical shock-absorbing components 11 are provided on the top surface of the screen 10. Each shock-absorbing component 11 includes a T-block 111 and a base plate 112. Connecting rods 113 are provided on both sides of the T-block 111 and the base plate 112. The connecting rods 113 are rotatably connected to the T-block 111 and the base plate 112. Sliding frames 114 are provided on both sides of the T-block 111. The sliding frames 114 are fixedly connected to the T-block 111. A sliding block 115 is slidably provided on the inner side of the sliding frame 114. A guide rod 116 is provided on one side of the sliding frame 114. The end of the guide rod 116 near the sliding frame 116 is connected to... The sliding frame 116 is fixedly connected. The guide rod 116 passes through the sliding block 115 and is fixedly connected to the T-block 111 at one end. The guide rod 116 and the sliding block 115 are slidably connected. A spring 117 is provided at the opposite end of the guide rod 116. The spring 117 is fixedly connected to the sliding frame 116. A damper 118 is provided between the T-block 111 and the base plate 112. The damper 118 is fixedly connected to the T-block 111. By setting the shock absorption component 11, the impact of sand and gravel on the screen 10 can be reduced, the screen 10 can be protected, and the service life of the screen 10 can be extended.

[0023] The top surface of the shock absorber 11 is provided with a support frame 12, which is fixedly connected to the top surface of the shock absorber 11. A cross-shaped support column 13 is provided on the top surface of the support frame 12, and is fixedly connected to the top surface of the support frame 12. The cross-shaped support column 13 includes a vertical rod and a horizontal rod, which are rotatably connected. A receiving frame 15 is provided on the outer ring of the horizontal rod. The receiving frame 15 includes a sleeve rotatably disposed on the outer ring of the horizontal rod. Multiple distribution plates are evenly distributed on the outer surface of the sleeve, and the distribution plates are fixedly connected to the sleeve. A rubber sleeve is fitted between the sleeve and the horizontal rod. The setting can increase the friction between the sleeve and the crossbar. The receiving rack 15 is set below the feed hopper 2 near the feed inlet, so that after the sand and gravel fall onto the receiving rack 15, they are poured onto the screen 10 on the side away from the feed inlet. The bottom surface of the screen 10 is equipped with a vibration motor 16, which is fixedly connected to the screen 10. Through the setting of the vibration motor 16 and the receiving rack 15, the vibration motor 16 can drive the screen 10 to vibrate, so that the sand and gravel are more fully dispersed, improving the screening efficiency and accuracy. The receiving rack 15 prevents the sand and gravel from acting directly on the screen 10.

[0024] In this embodiment, during use, the sand and gravel mixing equipment for construction projects pours sand and gravel from the feed hopper 2 at the top of the mixing tank 1, and the sand and gravel fall onto the receiving frame 15 located below the feed hopper 2. The impact force generated by the falling sand and gravel acts on the four connected damping components 11 through the support frame 12 connected to the receiving frame 15. The impact force causes the T-block 111 to move downwards. The connecting rod 113 rotatably connected to the T-block 111 and the base plate 112 pushes the sliding block 115 to slide linearly to both sides along the guide rod 116 within the sliding frame 114. The spring 117, in conjunction with the damper 118 located between the T-block 111 and the base plate 112, applies a force opposite to the movement of the T-block 111, which can consume some energy and reduce vibration, thereby playing a role in damping the screen 10. The receiving frame 15 then pours the sand and gravel onto the screen 10. On the screen 10, the vibrating motor 16 installed at the bottom of the screen 10 vibrates the screen 10. Under the action of the spring 19, the limiting block 8 and the moving rod 9, the screen 10 is kept vibrating in the mixing tank 1. The vibrating screen 10 screens the sand and gravel, separating out the large particles in the sand and gravel. Under the action of the vibrating motor 16, the large particles enter the crushing box 17 along the guide plate fixedly connected to the screen 10. Then, the crushing roller 18 in the crushing box 17 crushes the sand and gravel. After crushing, the sand and gravel enter the mixing tank 1 through the feed port at the bottom of the crushing box 17. The output end of the motor 3 at the bottom of the mixing tank 1 drives the fixedly connected rotating shaft 4 to rotate. The rotating shaft 4 drives the special-shaped stirring blade 5 to rotate, mixing the sand and gravel in the mixing tank 1. After mixing, the sand and gravel is discharged through the discharge port 6.

[0025] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A construction site sand and gravel mixing plant comprising a mixing drum (1), characterised in that: The mixing tank (1) is provided with a feed hopper (2) at the top and a motor (3) at the bottom. The output end of the motor (3) is located inside the mixing tank (1) and a rotating shaft (4) is provided. The outer ring of the rotating shaft (4) is provided with a stirring blade (5). A discharge port (6) is provided on one side of the motor (3) at the bottom of the mixing tank (1). A support (7) is provided on the outer wall of the mixing tank (1). A crushing mechanism is provided on one side of the outer wall of the mixing tank (1). Multiple sets of limiting blocks (8) are connected to one side of the inner wall of the mixing tank (1). A moving rod (9) is slidably provided on the top of each limiting block (8). A screen (10) is connected to the top of the moving rod (9). Four identical shock-absorbing components (11) are provided on the top surface of the screen (10). Each shock-absorbing component (11) includes a T-shaped block (111) and a base plate (112). Connecting rods (113) are provided on both sides of the T-block (111) and the base plate (112). Sliding frames (114) are provided on both sides of the T-block (111). A sliding block (115) is slidably provided on the inner side of the sliding frame (114). A guide rod (116) is provided on one side of the sliding frame (114). The guide rod (116) passes through the sliding block (115) and is fixedly connected to the T-block (111). A spring (117) is provided at the opposite end of the guide rod (116). A damper (118) is provided between the T-block (111) and the base plate (112). The top surface of the shock absorption assembly (11) is provided with the same support frame (12). The top surface of the support frame (12) is provided with a cross support column (13). The cross support column (13) includes a vertical rod and a horizontal rod. A receiving frame (15) is provided on the outer ring of the horizontal rod. A vibration motor (16) is provided on the bottom surface of the screen (10).

2. A construction site sand and gravel mixing apparatus according to claim 1, wherein The crushing mechanism includes a crushing box (17) fixedly installed on one side of the mixing tank (1). Two sets of crushing rollers (18) are rotatably installed inside the crushing box (17). One end of each crushing roller (18) is connected to a gear, and the gears mesh with each other on the side closest to each other. One end of one crushing roller (18) is connected to a drive motor. A feed inlet is opened on one side of the mixing tank (1) corresponding to the crushing box (17).

3. A construction site sand and gravel mixing apparatus as claimed in claim 2, wherein, The screen (10) is provided with a guide plate near the inner wall of the mixing tank (1), and the guide plate extends into the crushing mechanism through the feed port.

4. A construction site sand and gravel mixing apparatus as claimed in claim 1, wherein, The receiving rack (15) includes a sleeve rotatably disposed on the outer ring of the crossbar. Multiple sets of material plates are evenly disposed on the outer surface of the sleeve, and a rubber sleeve is sleeved and connected between the sleeve and the crossbar.

5. A construction site sand and gravel mixing apparatus as claimed in claim 1, wherein, Both ends of the moving rod (9) are fitted with springs (19). The ends of the springs (19) that are close to each other are fixedly connected to the limiting block (8). The bottom end of the moving rod (9) is connected to a limiting plate, and the bottom end of the springs (19) located below is connected to the limiting plate.

6. A construction site sand and gravel mixing apparatus as claimed in claim 1, wherein, The discharge port (6) is provided with a discharge pipe, and a valve is provided on the outer ring of the discharge pipe.

7. A construction site sand and gravel mixing apparatus as claimed in claim 1, wherein, The material receiving rack (15) is arranged below the inlet hopper (2) near the inlet opening.

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