A sand and gravel sorting machine for construction

Abstract

This invention discloses a sand and gravel separator for construction, belonging to the field of sand and gravel vibrating screens. The sand and gravel separator for construction uses a sliding rod slidably connected inside a sliding sleeve fixedly installed at the bottom of the lower screen frame. A vibrating motor is installed at the bottom of the sliding rod, so that the vibration force generated by the vibrating motor causes a set of overlapping plates to vibrate up and down, thereby driving the T-shaped support rod and the screen plate to vibrate, realizing the active vibration function of the screen plate body. Simultaneously, a rotary vibrating motor is installed at the bottom of the lower screen frame, giving the sand and gravel separator the effect of dual vibration of the screen plate body and the overall circular screen structure composed of several screen plates, improving the vibration effect and facilitating rapid screening of sand and gravel materials.

Description

Technical Field

[0001] The invention relates to the field of sand and gravel vibrating screens, and more specifically, to a sand and gravel separator for construction. Background Art

[0002] In the construction industry, sand and gravel are indispensable basic materials. With the continuous development of construction projects and the increasing requirements for construction quality, the screening and grading of sand and gravel have become crucial. The rotary vibrating screen uses a vibrating motor as a power source, and uses a unique vibration method to quickly screen sand and gravel on the screen surface. It can effectively separate sand and gravel particles of different particle sizes, remove impurities and unqualified particles, and provide high-quality sand and gravel materials that meet standards for construction projects.

[0003] Although the existing rotary vibrating screen has good screening function, its screen is mostly directly installed on the screen frame, and can only rely on the vibration of the screen frame to provide driving force for the vibration of the screen. The screen body cannot actively vibrate, which is not conducive to the rapid screening of sand and gravel materials. Therefore, we proposed a sand and gravel sorting machine for construction to solve the above problems. Summary of the invention

[0004] Technical problem to be solved: In view of the problems existing in the prior art, the purpose of the present invention is to provide a sand and gravel sorting machine for construction construction, which connects a sliding rod by sliding inside a sliding sleeve fixedly installed at the bottom of the lower screen frame, and installs a vibration motor at the bottom of the sliding rod, so that the vibration force generated by the vibration motor can cause the sliding rod to vibrate up and down, and then the top of the sliding rod contacts one end of the T-shaped support rod through a group of overlapping pieces, and the other end of the T-shaped support rod is rotatably connected to the inner wall of the lower screen frame, so that the vibration force generated by the vibration motor can cause the T-shaped support rod to vibrate, and then drive the sieve plate installed on the top of the T-shaped support rod to vibrate, thereby realizing the active vibration function of the sieve plate body, and at the same time, a rotary vibration motor is also installed at the bottom of the lower screen frame, so that the sand and gravel sorting machine has the effect of double vibration of the sieve plate body vibration and the circular screen structure composed of several sieve plate bodies as a whole, thereby improving the vibration effect and facilitating the rapid screening of sand and gravel materials.

[0005] Technical solution: To solve the above problems, the present invention adopts the following technical solution.

[0006] A sand and gravel sorting machine for construction, comprising an upper screen frame, a lower screen frame and a base frame, wherein the outer walls of the upper screen frame and the lower screen frame are fixedly welded by a plurality of connecting arms, and a discharge gap is provided between the upper screen frame and the lower screen frame, a motor bracket is fixedly welded to the bottom of the edge of the lower screen frame, a plurality of springs are used to fix the bottom of the circular edge of the motor bracket and the top edge of the base frame, and a rotary vibration motor is fixedly installed on the motor bracket;

[0007] A plurality of sieve plates are arranged inside the lower screen frame, and a circular sieve structure is formed between the plurality of sieve plates, expansion gaps are arranged between two adjacent sieve plates, T-shaped support rods are fixedly installed on the bottom of the plurality of sieve plates by screws, a sliding sleeve is fixedly welded to the bottom of the lower screen frame by a group of cross beams, a sliding rod is slidably connected inside the sliding sleeve, a group of lap plates are fixedly welded to the top of the sliding rod, one end of a plurality of T-shaped support rods extend between the group of lap plates, a base plate is fixedly welded to the bottom end of the sliding rod, a vibration motor is fixedly installed on the base plate, and support springs are sleeved on the sliding rods at the top and bottom of the sliding sleeve.

[0008] Furthermore, the bottom of the other end of each of the T-shaped support rods is fixedly welded with an ear piece, and the ear piece is rotatably connected to an ear seat via a pin, and one side of the ear seat is fixedly welded to the top of the inner wall of the lower screen frame.

[0009] Furthermore, a plurality of limit screws are fixedly installed on the outer wall of the slide rod at the top of the slide sleeve, the bottom of the limit screws is in contact with the top edge of the slide sleeve, and the T-shaped support rod is in a horizontal state.

[0010] Furthermore, the outer wall diameters of the upper screen frame and the lower screen frame are equal, the diameter of the screen plate is larger than the outer wall diameter of the lower screen frame, and the outer edge of the screen plate extends to the outside through the discharge gap.

[0011] Furthermore, the distance between a group of the overlapping pieces is greater than the sum of the thicknesses of the sieve plate and the T-shaped support rod.

[0012] Furthermore, two adjacent sieve plates located at the expansion gap are fixed and adhered by rubber sheets.

[0013] Furthermore, an upper hopper is fixedly mounted on the upper screen frame, and a conical cover is provided at the center of the bottom of the upper hopper. The bottom of the inner wall of the conical cover is fixedly mounted corresponding to the top of the overlapping piece, and the diameter of the bottom edge of the conical cover is larger than the diameter of the outer edge of the overlapping piece.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0015] In this scheme, a sliding rod is slidably connected inside a sliding sleeve fixedly installed at the bottom of the lower screen frame, and a vibration motor is installed at the bottom of the sliding rod, so that the vibration force generated by the vibration motor can cause the sliding rod to vibrate up and down, and then the top of the sliding rod contacts one end of a T-shaped support rod through a set of overlapping plates, and the other end of the T-shaped support rod is rotationally connected to the inner wall of the lower screen frame, so that the vibration force generated by the vibration motor can cause the T-shaped support rod to vibrate, and then drive the screen plate installed on the top of the T-shaped support rod to vibrate, thereby realizing the active vibration function of the screen plate body, and at the same time, a rotary vibration motor is also installed at the bottom of the lower screen frame, so that the sand and gravel sorting machine has the effect of double vibration of the screen plate body and the circular screen structure composed of several screen plate bodies, thereby improving the vibration effect and facilitating the rapid screening of sand and gravel materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the internal structure of the lower screen frame of the present invention.

[0018] Figure 3 It is a schematic diagram of the T-shaped support rod connection structure of the present invention.

[0019] Figure 4 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0020] Figure 5 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0021] Description of the numbers in the figure:

[0022] 1. Upper screen frame; 2. Lower screen frame; 3. Base frame; 4. Connecting arm; 5. Discharge gap; 6. Motor bracket; 7. Spring; 8. Rotary vibration motor; 9. Screen plate; 10. Expansion gap; 11. T-shaped support rod; 1101. Ear piece; 1102. Ear seat; 12. Crossbeam; 13. Sliding sleeve; 14. Sliding rod; 15. Overlapping piece; 16. Vibration motor; 17. Support spring; 18. Limit screw; 19. Upper hopper; 20. Conical cover. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-Figure 5A sand and gravel sorting machine for construction, comprising an upper screen frame 1, a lower screen frame 2 and a base frame 3, the outer walls of the upper screen frame 1 and the lower screen frame 2 are fixedly welded by a plurality of connecting arms 4, and a discharge gap 5 is provided between the upper screen frame 1 and the lower screen frame 2, a motor bracket 6 is fixedly welded at the bottom of the edge of the lower screen frame 2, a plurality of springs 7 are used to fix the bottom of the circular edge of the motor bracket 6 and the top edge of the base frame 3, and a rotary vibration motor 8 is fixedly installed on the motor bracket 6;

[0025] A plurality of sieve plates 9 are arranged inside the lower sieve frame 2, and a circular sieve structure is formed between the plurality of sieve plates 9, a telescopic gap 10 is arranged between two adjacent sieve plates 9, a T-shaped support rod 11 is fixedly installed at the bottom of the plurality of sieve plates 9 by screws, a sliding sleeve 13 is fixedly welded at the bottom of the lower sieve frame 2 by a group of cross beams 12, a sliding rod 14 is slidably connected inside the sliding sleeve 13, a group of lap plates 15 is fixedly welded at the top of the sliding rod 14, one end of the plurality of T-shaped support rods 11 extends between the group of lap plates 15, a base plate is fixedly welded at the bottom end of the sliding rod 14, a vibration motor 16 is fixedly installed on the base plate, and a support spring 17 is sleeved on the sliding rod 14 at the top and bottom of the sliding sleeve 13;

[0026] The bottom of the other end of the several T-shaped support rods 11 is fixedly welded with an ear piece 1101, and the ear piece 1101 is rotatably connected with an ear seat 1102 through a pin, and one side of the ear seat 1102 is fixedly welded to the top of the inner wall of the lower screen frame 2.

[0027] The working principle of this kind of sand and gravel separator for construction is:

[0028] First, the rotary vibration motor 8 and the vibration motor 16 are powered on and kept in operation, and then the sand and gravel materials are added into the upper hopper 19. At this time, the sand and gravel materials fall down and flow evenly to the top of the plurality of sieve plates 9 through the distribution effect of the conical cover 20. At the same time, the vibration motor 16 generates a vibration force to cause the slide bar 14 to reciprocate up and down inside the slide sleeve 13, and drives a group of lap plates 15 to vibrate up and down. At this time, since one end of a plurality of T-shaped support rods 11 extends between a group of lap plates 15, and a plurality of T-shaped support rods 1 The other end of the lap joint 1101 is rotatably connected to the inner wall of the lower screen frame 2 through the ear piece 1101 and the ear seat 1102, so when a group of lap joints 15 vibrate up and down, one end of a plurality of T-shaped support rods 11 can be driven to vibrate up and down, so that the screen plate 9 installed on the T-shaped support rod 11 can achieve the effect of autonomous vibration, and then the sand and gravel materials with smaller particle sizes can pass through the sieve holes on the screen plate 9 and fall down, and finally fall through the bottom of the base frame 3, while the sand and gravel materials with larger particle sizes cannot pass through the sieve holes on the screen plate 9 and can only be discharged through the discharge gap 5, thereby completing the screening process of the sand and gravel materials;

[0029] While the screen plate 9 vibrates autonomously, the vibration force generated by the rotary vibration motor 8 is transmitted to the lower screen frame 2 through the motor bracket 6, causing the lower screen frame 2 to vibrate as a whole, thereby prompting the circular screen structure composed of several screen plates 9 to vibrate as a whole, achieving a double vibration effect and accelerating the screening efficiency.

[0030] Embodiment 2: In view of the above embodiment 1, further description is given, referring to Figure 2-Figure 5 , a plurality of limit screws 18 are fixedly installed on the outer wall of the slide bar 14 located at the top of the slide sleeve 13, the bottom of the limit screw 18 is in contact with the top edge of the slide sleeve 13, and the T-shaped support rod 11 is in a horizontal state. The installation of the limit screw 18 can control the falling position of the slide bar 14 and a group of overlap plates 15 when they vibrate up and down, so that when one end of the T-shaped support rod 11 falls to the lowest position, the T-shaped support rod 11 can be kept in a horizontal state, thereby keeping the screen plate 9 in a horizontal state, preventing the sand and gravel materials from easily flowing back and falling through the gaps between the group of overlap plates 15 when the end of the screen plate 9 close to the group of overlap plates 15 falls too low, resulting in incomplete screening of the sand and gravel materials finally screened;

[0031] The outer wall diameters of the upper screen frame 1 and the lower screen frame 2 are equal, the diameter of the screen plate 9 is larger than the outer wall diameter of the lower screen frame 2, and the outer edge of the screen plate 9 extends to the outside through the discharge gap 5. The setting of the discharge gap 5 can discharge the sand and gravel materials with larger particle sizes at the top of the screen plate 9, and completely distinguish them from the sand and gravel materials discharged from the bottom of the screen plate 9 and the bottom of the base frame 3;

[0032] The distance between a group of lap pieces 15 is greater than the sum of the thicknesses of the sieve plate 9 and the T-shaped support rod 11, which can increase the redundant space between a group of lap pieces 15 to prevent interference between the sieve plate 9 and one end of the T-shaped support rod 11 when vibrating between a group of lap pieces 15 (and it should be noted that the amplitude of the sliding rod 14 driven up and down by the vibration motor 16 should be controlled to prevent the amplitude from being too large and the distance a group of lap pieces 15 rises too high, causing one end of the T-shaped support rod 11 to be out of contact with a group of lap pieces 15). The two adjacent sieve plates 9 located at the position of the expansion gap 10 are fixed and pasted by rubber sheets, and the setting of the expansion gap 10 can not interfere with the vibration activity between the two adjacent sieve plates 9. The rubber sheet has a stretching property and can cover the expansion gap 10 to prevent sand and gravel materials from leaking through the expansion gap 10.

[0033] An upper hopper 19 is fixedly installed on the upper screen frame 1, and a conical cover 20 is arranged at the center position of the bottom of the upper hopper 19. The bottom of the inner wall of the conical cover 20 is fixedly installed with the top of the corresponding overlapping piece 15, and the bottom edge diameter of the conical cover 20 is larger than the outer edge diameter of the overlapping piece 15. The setting of the upper hopper 19 is convenient for the discharge of sand and gravel materials at the center position of the lower screen frame 2, thereby increasing the residence time of the sand and gravel materials on the screen plate 9, and the conical cover 20 re-scatters the sand and gravel materials discharged at the center position of the lower screen frame 2 to avoid the gaps of a group of overlapping pieces 15.

[0034] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand and gravel separator for construction, comprising an upper screen frame (1), a lower screen frame (2) and a base frame (3), characterized in that: The outer walls of the upper screen frame (1) and the lower screen frame (2) are fixedly welded via a plurality of connecting arms (4), and a discharge gap (5) is provided between the upper screen frame (1) and the lower screen frame (2). A motor bracket (6) is fixedly welded to the bottom of the edge of the lower screen frame (2), and a plurality of springs (7) are fixedly installed between the bottom of the circular edge of the motor bracket (6) and the top edge of the base frame (3), and a rotary vibration motor (8) is fixedly installed on the motor bracket (6); A plurality of sieve plates (9) are arranged inside the lower sieve frame (2), and a circular sieve structure is formed between the plurality of sieve plates (9), an expansion gap (10) is arranged between two adjacent sieve plates (9), and the two adjacent sieve plates (9) located at the position of the expansion gap (10) are fixed and glued by rubber sheets, and a T-shaped support rod (11) is fixedly installed at the bottom of the plurality of sieve plates (9) by screws, and a sliding sleeve (13) is fixedly welded at the center of the bottom of the lower sieve frame (2) through a group of cross beams (12), and the sliding sleeve (13) is slidably connected inside. A slide bar (14) is provided, a group of overlapping plates (15) is fixedly welded on the top of the slide bar (14), one end of a plurality of the T-shaped support bars (11) extends between the group of overlapping plates (15), a base plate is fixedly welded on the bottom end of the slide bar (14), a vibration motor (16) is fixedly mounted on the base plate, and support springs (17) are sleeved on the slide bar (14) located at the top and bottom of the sliding sleeve (13), and the distance between the group of overlapping plates (15) is greater than the sum of the thicknesses of the sieve plate (9) and the T-shaped support bars (11); The bottom of the other end of the plurality of T-shaped support rods (11) is fixedly welded with an ear piece (1101), and the ear piece (1101) is rotatably connected to an ear seat (1102) via a pin shaft, and one side of the ear seat (1102) is fixedly welded to the top of the inner wall of the lower screen frame (2). When the sand and gravel separator is working, the vibration motor (16) generates a vibration force to cause the slide bar (14) to move back and forth up and down inside the slide sleeve (13), and drives a group of overlap plates (15) to vibrate up and down. Since one end of the plurality of T-shaped support rods (11) extends to the group of overlap plates (15), The other ends of the plurality of T-shaped support rods (11) are rotatably connected to the inner wall of the lower screen frame (2) through the ear pieces (1101) and the ear seats (1102). When a group of overlapping pieces (15) vibrate up and down, one end of the plurality of T-shaped support rods (11) can be driven to vibrate up and down, thereby causing the screen plates (9) installed on the T-shaped support rods (11) to achieve the effect of autonomous vibration. The vibration force generated by the rotary vibration motor (8) is transmitted to the lower screen frame (2) through the motor bracket (6), thereby causing the lower screen frame (2) to vibrate as a whole, thereby causing the circular screen structure formed between the plurality of screen plates (9) to vibrate as a whole. A plurality of limit screws (18) are fixedly mounted on the outer wall of the slide rod (14) located at the top of the slide sleeve (13), the bottom of the limit screw (18) is in contact with the top edge of the slide sleeve (13), and the T-shaped support rod (11) is in a horizontal state.

2. A sand and gravel separator for construction according to claim 1, characterized in that: The outer wall diameters of the upper screen frame (1) and the lower screen frame (2) are equal, the diameter of the screen plate (9) is larger than the outer wall diameter of the lower screen frame (2), and the outer edge of the screen plate (9) extends to the outside through the discharge gap (5).

3. A sand and gravel separator for construction according to claim 1, characterized in that: An upper hopper (19) is fixedly mounted on the upper screen frame (1), and a conical cover (20) is provided at the center position of the bottom of the upper hopper (19). The bottom of the inner wall of the conical cover (20) is fixedly mounted corresponding to the top of the overlapping piece (15), and the diameter of the bottom edge of the conical cover (20) is greater than the diameter of the outer edge of the overlapping piece (15).

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