Concrete raw material screening device

Abstract

The utility model discloses a concrete raw material screening device which comprises a screening device working plane. A mounting rod is mounted on the working plane of the material screening device, a vibrating screen device is arranged on the working plane of the material screening device, a cleaning device is arranged on the working plane of the material screening device, a trowelling device is arranged on the working plane of the material screening device, and a feeding hopper is mounted above the working plane of the material screening device; according to the vibrating screen, raw materials are poured into the vibrating screen through the feeding hopper, the vibrator drives the vibrating screen bottom plate to vibrate, so that the first vibrating screen side plate drives the first vibrating screen mesh and the second vibrating screen mesh to vibrate, the raw materials smaller than the corresponding hole diameter fall down through the holes in the first vibrating screen mesh and the second vibrating screen mesh, and therefore the purpose of classified screening is achieved; the lifting lead screw rotates to drive the upper plate of the connecting plate to ascend, the upper plate of the connecting plate drives the first cleaning fixing plate and the second cleaning fixing plate to ascend, and therefore the first cleaning rod and the second cleaning rod are used for cleaning meshes of the first vibrating screen and the second vibrating screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete processing technical field, concretely is a kind of concrete raw material screening device. BACKGROUND

[0002] The announcement No. CN214917995U is a kind of concrete raw material grading screening device, including screening machine body, and the machine case for providing power is installed on the surface of screening machine body, and the feeding port for feeding is installed on the upper surface of screening machine body, further including the air inlet fan installed on the upper surface of screening machine body, the lower surface of air inlet fan is equipped with wind deflector, and the first fixed screen and the second fixed screen are installed in the inside of screening machine body, the upper surface of first fixed screen and second fixed screen is respectively fixedly connected with first vibrating screen and second vibrating screen by a plurality of springs, the upper surface of first fixed screen and second fixed screen is all provided with a plurality of fixed rods, when screen hole is blocked, it can be cleaned by the structure of itself, and manpower is saved.

[0003] The above-mentioned device, when working, if feeding is too fast, the raw materials will all fall in the communicating position, when the raw materials are accumulated too much, the efficiency and effect of screening will be affected, and the mesh cleaning device of the above-mentioned device utilizes the vibration screen blockage to increase its own quality, and simultaneously cooperates with the air force to press down the vibration screen to make the mesh cooperate with the fixed rod to achieve the cleaning effect, if the spring elasticity is too large, the air force cannot press down the screen, if the spring elasticity is too small, when there is concrete raw material above the screen, it will be pressed down by the weight of raw material, then the mesh will be blocked by the fixed rod when working, and the raw materials cannot pass through the mesh smoothly, so a kind of concrete raw material screening device is needed to meet people's needs. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of concrete raw material screening device to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of concrete raw material screening device, including screening device working plane;The installation rod is installed on the screening device working plane, the screening device working plane is equipped with vibrating screen device, the screening device working plane is equipped with cleaning device, the screening device working plane is equipped with trowelling device, the screening device working plane is installed with feeding hopper above;

[0006] Preferably, the vibrating screen device includes vibrating screen bottom plate, the vibrating screen bottom plate is installed above screening device working plane, the first vibrating screen side plate is installed on the both sides of vibrating screen bottom plate, the second vibrating screen side plate is installed on one side of vibrating screen bottom plate, the vibrating screen top plate is installed on the first vibrating screen side plate, and the vibrator is installed at the bottom of vibrating screen bottom plate.

[0007] Preferably, a first vibrating screen net is installed between the two first vibrating screen side plates, a second vibrating screen net is installed below the first vibrating screen net, and a material falling inclined plate is installed on the vibrating screen bottom plate.

[0008] Preferably, the cleaning device comprises a first cleaning fixed plate, the first cleaning fixed plate is installed below the first vibrating screen net, a first cleaning rod is installed on the first cleaning fixed plate, a second cleaning fixed plate is installed below the second vibrating screen net, and a second cleaning rod is installed on the second cleaning fixed plate.

[0009] Preferably, cleaning plate connecting grooves are formed in the first vibrating screen net, the second vibrating screen net and the vibrating screen top plate, cleaning plate connecting plates are installed above and below the first cleaning fixed plate, and the cleaning plate connecting plate below the first cleaning fixed plate is connected with the second cleaning fixed plate through the second vibrating screen net.

[0010] Preferably, a connecting plate upper plate is installed on the cleaning plate connecting plate above the first cleaning fixed plate, a lifting motor is installed on the vibrating screen top plate, a lifting lead screw is installed on the lifting motor, a hole is formed in the connecting plate, and the lifting lead screw is installed in the hole.

[0011] Preferably, the troweling device comprises a baffle connecting plate, the baffle connecting plate is installed below the vibrating screen top plate, a troweling plate is installed on one side of the baffle connecting plate, and an adjusting knob is installed on the baffle connecting plate.

[0012] Preferably, a groove is formed in the troweling plate, a baffle spring is installed in the groove, an upper baffle is installed on the baffle spring, a hole is formed in the vibrating screen top plate, and the adjusting knob is installed in the hole.

[0013] Preferably, a damping spring is installed on the mounting rod, a mounting block is installed on one side of the first vibrating screen side plate, and the mounting block is installed on the damping spring.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) The utility model discloses a material screening device, which comprises a vibrating screen bottom plate, first vibrating screen side plates, a first vibrating screen net, a second vibrating screen net, a vibrating screen top plate, a material falling inclined plate, a first cleaning fixed plate, a first cleaning rod, a second cleaning fixed plate, a second cleaning rod, a cleaning plate connecting plate, a connecting plate upper plate, a lifting motor, a lifting lead screw, a baffle connecting plate, a troweling plate, an adjusting knob, a damping spring and a mounting block.

[0016] (2) During operation, the raw materials at the feed port are smoothed by means of a trowel to prevent the raw materials from piling up too thickly at the same location. The height of the trowel can be adjusted by turning the knob to move the baffle connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a concrete raw material screening device proposed by the present utility model;

[0018] Figure 2 This is a structural diagram of the first vibrating screen and the falling inclined plate of a concrete raw material screening device proposed by the present invention;

[0019] Figure 3 This is a structural diagram of a cleaning plate, connecting plate, lifting motor and other structures of a concrete raw material screening device proposed by the present invention;

[0020] Figure 4 This is a structural schematic diagram of a concrete raw material screening device proposed by the present invention, including a trowel plate, a baffle connecting plate and other structures.

[0021] In the figure: 1. Working plane of screening device; 2. Vibrating screen device; 3. Cleaning device; 4. Smoothing device; 5. Feed hopper; 6. Mounting rod; 7. Shock-absorbing spring; 8. Mounting block; 20. First vibrating screen; 21. Second vibrating screen; 22. Vibrating screen bottom plate; 23. First vibrating screen side plate; 24. Second vibrating screen side plate; 25. Vibrator; 26. Blanking inclined plate; 27. Vibrating screen top plate; 30. First cleaning fixed plate; 31. First cleaning rod; 32. Second cleaning fixed plate; 33. Second cleaning rod; 34. Cleaning plate connecting plate; 35. Cleaning plate connecting groove; 36. Connecting plate upper plate; 37. Lifting motor; 38. Lifting screw; 40. Adjusting knob; 41. Smoothing plate; 42. Upper baffle; 43. Baffle spring; 44. Baffle connecting plate. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Please refer to Figures 1-4The utility model provides a technical scheme: a kind of concrete raw material screening device, including screening device work plane 1;In order to prevent the influence of screening of raw material over-thickness on screen, mounting rod 6 is installed on screening device work plane 1, screening device work plane 1 is equipped with sieve shaker 2, screening device work plane 1 is equipped with cleaning device 3, screening device work plane 1 is equipped with trowelling device 4, feeding hopper 5 is installed above screening device work plane 1, screening is carried out by sieve shaker 2, clogging screen is cleaned by cleaning device 3, avoid raw material over-thickness on screen by trowelling device 4;

[0024] In order to realize the function of screening, the vibrating screen device 2 comprises a vibrating screen bottom plate 22 installed above the screening device working plane 1, two first vibrating screen side plates 23 installed on the vibrating screen bottom plate 22, a second vibrating screen side plate 24 installed on one side of the vibrating screen bottom plate 22, a vibrating screen top plate 27 installed on the first vibrating screen side plate 23, a vibrator 25 installed at the bottom of the vibrating screen bottom plate 22, a first vibrating screen mesh 20 installed between the two first vibrating screen side plates 23, a second vibrating screen mesh 21 installed below the first vibrating screen mesh 20, a material falling inclined plate 26 installed on the vibrating screen bottom plate 22, and a cleaning device 3 comprising a first cleaning fixed plate 30 installed below the first vibrating screen mesh 20, a first cleaning rod 31 installed on the first cleaning fixed plate 30, a second cleaning fixed plate 32 installed below the second vibrating screen mesh 21, a second cleaning rod 33 installed on the second cleaning fixed plate 32, cleaning plate connecting grooves 35 opened on the first vibrating screen mesh 20, the second vibrating screen mesh 21 and the vibrating screen top plate 27, cleaning plate connecting plates 34 installed above and below the first cleaning fixed plate 30, the cleaning plate connecting plate 34 below the first cleaning fixed plate 30 connected with the second cleaning fixed plate 32 through the second vibrating screen mesh 21, a connecting plate upper plate 36 installed on the cleaning plate connecting plate 34 above the first cleaning fixed plate 30, a lifting motor 37 installed on the vibrating screen top plate 27, a lifting lead screw 38 installed on the lifting motor 37, a hole opened on the connecting plate upper plate 36, the lifting lead screw 38 installed in the hole, a damping spring 7 installed on the mounting rod 6, a mounting block 8 installed on one side of the first vibrating screen side plate 23, the mounting block 8 installed on the damping spring 7, the raw materials poured into the first vibrating screen mesh 20 above through the feeding hopper 5, the vibrating screen bottom plate 22 vibrated by the vibrator 25, the first vibrating screen mesh 20 and the second vibrating screen mesh 21 vibrated by the first vibrating screen side plate 23, the raw materials smaller than the aperture of the first vibrating screen mesh 20 falling onto the second vibrating screen mesh 21 through the holes on the first vibrating screen mesh 20, the raw materials smaller than the aperture of the second vibrating screen mesh 21 falling onto the material falling inclined plate 26 through the holes on the second vibrating screen mesh 21, and finally falling into the collection frame through the material falling inclined plate 26, so as to realize the purpose of grading and screening, when the screen holes are blocked, the connecting plate upper plate 36 is lifted by the rotation of the lifting lead screw 38, the first cleaning fixed plate 30 and the second cleaning fixed plate 32 are lifted by the connecting plate upper plate 36, and the mesh holes of the first vibrating screen mesh 20 and the second vibrating screen mesh 21 are cleaned by the first cleaning rod 31 and the second cleaning rod 33.

[0025] Example 2: as Figures 1-4, in order to avoid the raw materials to accumulate in the same position too thick, the leveling device 4 includes a baffle connecting plate 44, the baffle connecting plate 44 is installed below the sieve top plate 27, the baffle connecting plate 44 is installed with a leveling plate 41 on one side, the baffle connecting plate 44 is installed with an adjusting knob 40, the leveling plate 41 is provided with a groove, the groove is installed with a baffle spring 43, the baffle spring 43 is installed with an upper baffle 42, the sieve top plate 27 is provided with a hole, the adjusting knob 40 is installed in the hole, in the working process, the raw materials of the feed inlet are leveled by the leveling plate 41, the raw materials that are too thick are blocked by the leveling plate 41, the raw materials at the bottom pass through the gap between the leveling plate 41 and the first sieve screen 20, so that the raw materials can be prevented from accumulating in the same position too thick, the height of the leveling plate 41 can be adjusted by moving the baffle connecting plate 44 through the adjusting knob 40, and the remaining features are the same as those in example 1.

[0026] The working principle is that: the raw materials are poured into the first sieve screen 20 through the feeding hopper 5, the vibration of the sieve bottom plate 22 is driven by the vibrator 25, so that the first sieve screen 20 and the second sieve screen 21 are vibrated through the first sieve screen side plate 23, the raw materials smaller than the aperture of the first sieve screen 20 will fall onto the second sieve screen 21 through the holes on the first sieve screen 20, the raw materials smaller than the aperture of the second sieve screen 21 will fall onto the material falling inclined plate 26 through the holes on the second sieve screen 21, and finally fall into the collecting frame through the material falling inclined plate 26, so as to realize the purpose of grading screening, when the screen hole is blocked, the first cleaning fixed plate 30 and the second cleaning fixed plate 32 are lifted through the lifting of the connecting plate upper plate 36 driven by the lifting screw 38, so that the mesh holes of the first sieve screen 20 and the second sieve screen 21 are cleaned by the first cleaning rod 31 and the second cleaning rod 33, in the working process, the raw materials of the feed inlet are leveled by the leveling plate 41, the raw materials that are too thick are blocked by the leveling plate 41, the raw materials at the bottom pass through the gap between the leveling plate 41 and the first sieve screen 20, so that the raw materials can be prevented from accumulating in the same position too thick, the height of the leveling plate 41 can be adjusted by moving the baffle connecting plate 44 through the adjusting knob 40.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A concrete raw material screening device, comprising a screening device working plane (1); characterized in that: A mounting rod (6) is installed on the working plane (1) of the screening device, a vibrating screen device (2) is provided on the working plane (1) of the screening device, a cleaning device (3) is provided on the working plane (1) of the screening device, a leveling device (4) is provided on the working plane (1) of the screening device, and a feed hopper (5) is installed above the working plane (1) of the screening device; The vibrating screen device (2) comprises a vibrating screen bottom plate (22), the vibrating screen bottom plate (22) being mounted above a working plane (1) of the screening device, first vibrating screen side plates (23) being mounted on both sides of the vibrating screen bottom plate (22), a second vibrating screen side plate (24) being mounted on one side of the vibrating screen bottom plate (22), a vibrating screen top plate (27) being mounted on the first vibrating screen side plate (23), and a vibrator (25) being mounted on the bottom of the vibrating screen bottom plate (22).

2. A concrete raw material screening device according to claim 1, characterized in that: A first vibrating screen mesh (20) is installed between the two first vibrating screen side plates (23), a second vibrating screen mesh (21) is installed below the first vibrating screen mesh (20), and a blanking inclined plate (26) is installed on the vibrating screen bottom plate (22).

3. The concrete raw material screening device according to claim 2, characterized in that: The cleaning device (3) comprises a first cleaning fixed plate (30), the first cleaning fixed plate (30) being mounted below a first vibrating screen (20), a first cleaning rod (31) being mounted on the first cleaning fixed plate (30), a second cleaning fixed plate (32) being mounted below the second vibrating screen (21), and a second cleaning rod (33) being mounted on the second cleaning fixed plate (32).

4. The concrete raw material screening device according to claim 3, characterized in that: The first vibrating screen (20), the second vibrating screen (21) and the vibrating screen top plate (27) are all provided with cleaning plate connecting grooves (35), and the first cleaning fixed plate (30) is provided with cleaning plate connecting plates (34) above and below. The cleaning plate connecting plate (34) below the first cleaning fixed plate (30) passes through the second vibrating screen (21) and is connected to the second cleaning fixed plate (32).

5. The concrete raw material screening device according to claim 4, characterized in that: A connecting plate upper plate (36) is installed on the cleaning plate connecting plate (34) above the first cleaning fixed plate (30), a lifting motor (37) is installed on the vibrating screen top plate (27), a lifting screw (38) is installed on the lifting motor (37), a hole is opened on the connecting plate upper plate (36), and the lifting screw (38) is installed in the hole.

6. The concrete raw material screening device according to claim 1, characterized in that: The smoothing device (4) includes a baffle connecting plate (44), the baffle connecting plate (44) is installed below the vibrating screen top plate (27), a smoothing plate (41) is installed on one side of the baffle connecting plate (44), and an adjusting knob (40) is installed on the baffle connecting plate (44).

7. The concrete raw material screening device according to claim 6, characterized in that: A groove is formed in the trowel plate (41), a baffle spring (43) is installed in the groove, an upper baffle (42) is installed on the baffle spring (43), a hole is formed in the vibrating screen top plate (27), and the adjusting knob (40) is installed in the hole.

8. The concrete raw material screening device according to claim 1, characterized in that: A shock-absorbing spring (7) is installed on the mounting rod (6), a mounting block (8) is installed on one side of the first vibration screen side plate (23), and the mounting block (8) is installed on the shock-absorbing spring (7).

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