阅读说明：本技术 一种公路建设用砂石筛选装置 (Gravel screening device for highway construction ) 是由 曾勇 于 2020-07-02 设计创作，主要内容包括：本发明公开了一种公路建设用砂石筛选装置,包括底座、支撑柱和筛选框,筛选框顶部连接有进料斗,还包括第一筛板、排料通道和积料框,第一筛板倾斜安装在筛选框内且低端一侧的筛选框与排料通道一端相连通,排料通道另一端与积料框相连通,所述积料框通过支撑柱固定安装在底座上且底部与筛选框底部相连通,所述积料框内设置有筛分组件,所述筛分组件包括第二斜齿轮、驱动电机、从动轴、第二筛板、顶杆、齿条导柱和不完全齿轮,通过设置筛分组件,较小的砂石从筛孔落下,再从底部进入积料框底部；较大的砂石由排料通道排入第二筛板,顶杆顶端不停对第二筛板撞击产生振动,将未能从第一筛板上筛下的较小砂石落到积料框底部。(The invention discloses a gravel screening device for highway construction, which comprises a base, support columns and a screening frame, wherein the top of the screening frame is connected with a feed hopper, the gravel screening device also comprises a first screen plate, a material discharging channel and a material accumulating frame, the first screen plate is obliquely arranged in the screening frame, the screening frame on one side of the lower end of the first screen plate is communicated with one end of the material discharging channel, the other end of the material discharging channel is communicated with the material accumulating frame, the material accumulating frame is fixedly arranged on the base through the support columns, the bottom of the material accumulating frame is communicated with the bottom of the screening frame, a screening component is arranged in the material accumulating frame, the screening component comprises a second helical gear, a driving motor, a driven shaft, a second screen plate, a push rod, a rack guide pillar and an incomplete gear, and by arranging; the larger sand and stone are discharged into the second sieve plate through the discharge channel, the top end of the ejector rod ceaselessly impacts the second sieve plate to generate vibration, and the smaller sand and stone which cannot be screened from the first sieve plate fall to the bottom of the material accumulation frame.)

1. The utility model provides a grit sieving mechanism for highway construction, includes base (1), support column (2) and filter frame (3), filter frame (3) top is connected with feeder hopper (4), a serial communication port, still install first sieve (18) in filter frame (3) including the slope, arrange material passageway (24) and long-pending material frame (34), first sieve (18) slope is installed in filter frame (3) and sieve frame (3) and row material passageway (24) one end of low side are linked together, arrange the material passageway (24) other end and be linked together with long-pending material frame (34), long-pending material frame (34) are linked together through support column (2) fixed mounting on base (1) and bottom and filter frame (3) bottom, be provided with screening assembly in long-pending material frame (34), screening assembly includes second helical gear (15), driving motor (16), driven shaft (17), Second sieve (27), ejector pin (29), rack guide pillar (30) and incomplete gear (31), driving motor (16) fixed mounting is on base (1) and output fixed mounting has first helical gear (14), second helical gear (15) fixed mounting just is connected with first helical gear (14) meshing on driven shaft (17), a plurality of incomplete gear (31) fixed mounting are on driven shaft (17), rack guide pillar (30) upper end fixed mounting just with incomplete gear (31) intermittent type meshing in ejector pin (29) bottom, ejector pin (29) activity is run through long-pending material frame (34) and the upper end is located second sieve (27) below, second sieve (27) fixed mounting just is less than discharge passageway (24) in long-pending material frame (34).

2. Gravel screening device for road construction according to claim 1, characterised in that an inclined stop (35) is mounted at the bottom of the screening frame (3).

3. Gravel screening device for road construction according to claim 1, characterised in that the first screening deck (18) has two screening decks (18) each having a lower end connected to the discharge channel (24), and that the two screening decks (18) are arranged in parallel in the screening frame (3) and the screening holes of the first screening deck (18) located above are larger than the screening holes of the first screening deck (18) located below.

4. A sand and stone screening apparatus for road construction according to claim 3 wherein the second screen deck (27) has two and the holes correspond to the holes of the first screen deck (18), the carrier rod (29) movably penetrates the second screen deck (27) below and is provided with a fixing rod (32), and the fixing rod (32) is located below the second screen deck (27).

5. Gravel screening device for road construction according to claim 4, characterized in that the discharge opening (26) is provided at the bottom of the material accumulation frame (34) and at the side wall of the material accumulation frame (34) on the side of the second screen plate (27).

6. Gravel screening device for road construction according to claim 1, characterized in that an auxiliary plate (33) is arranged on the base (1), and the driven shaft (17) is rotatably mounted in the auxiliary plate (33) through a bearing.

7. Gravel screening device for road construction according to any of claims 1-6, characterized in that a baffle (5) is arranged under the feed hopper (4), and the feed opening of the baffle (5) is located on the high end side of the first screen deck (18).

8. The gravel screening device for road construction according to claim 1, wherein a vibration component is arranged in the screening frame (3), the vibration component comprises a driving shaft (9), a cam (10), a mounting plate (11), a reset spring (13), a first sieve plate (18), a rotating rod (19), a sliding chute (20), a sliding block (21), a rotating shaft (22), a beating ball (23), a discharging channel (24) and a second sieve plate (25), the driving shaft (9) is connected with a driving motor (16), the cam (10) is fixedly arranged on the driving shaft (9), the outer contour of the cam is in sliding contact with one side of the mounting plate (11), two push rods (12) are fixedly arranged on the other side of the mounting plate (11), the other ends of the push rods (12) movably penetrate through the side wall of the screening frame (3) and are hinged to the sliding block (21), and the sliding block (21) is movably arranged in the, spout (20) are seted up in dwang (19), dwang (19) are rotated through pivot (22) and are installed in screening case (3) and the upper end with strike ball (23) and be connected, fixed mounting has multiunit reset spring (13) between mounting panel (11) and screening frame (3) outer wall.

9. The gravel screening device for highway construction according to claim 7, wherein an intermittent blanking component is arranged in the screening frame (3), the intermittent blanking component comprises a plugging plate (6), a connecting rod (7) and a rotary disc (8), the rotary disc (8) is fixedly arranged at the top of the driving shaft (9), one end of the connecting rod (7) is eccentrically hinged to the periphery of the rotary disc (8), the other end of the connecting rod is hinged to the plugging plate (6), and the plugging plate (6) movably penetrates through the side wall of the screening frame (3) and intermittently plugs a blanking opening of the baffle plate (5).

Technical Field

The invention relates to the field of buildings, in particular to a sand screening device for highway construction.

Background

Need use the grit and need sieve the grit in highway construction, and common grit screening machine all utilizes the sieve of slope to sieve usually, and on the grit was poured into the sieve, at the rolling in-process of grit, thereby less grit falls from the sieve and realizes the screening, but at a large amount of grit roll in-process, a lot of less sands can not in time effectually fall from the sieve, lead to screening inefficiency and effect poor.

Disclosure of Invention

The invention aims to provide a sand screening device for highway construction, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a gravel screening device for highway construction comprises a base, support columns and a screening frame, wherein the top of the screening frame is connected with a feed hopper, the gravel screening device further comprises a first screen plate, a discharge channel and a material accumulation frame which are obliquely arranged in the screening frame, the first screen plate is obliquely arranged in the screening frame, the screening frame on one side of the lower end of the first screen plate is communicated with one end of the discharge channel, the other end of the discharge channel is communicated with the material accumulation frame, the material accumulation frame is fixedly arranged on the base through the support columns, the bottom of the material accumulation frame is communicated with the bottom of the screening frame, a screening assembly is arranged in the material accumulation frame and comprises a second helical gear, a driving motor, a driven shaft, a second screen plate, an ejector rod, a rack guide pillar and an incomplete gear, the driving motor is fixedly arranged on the base, the output end of the driving motor is fixedly provided with the first helical, the upper end of the rack guide post is fixedly arranged at the bottom of the ejector rod and is intermittently meshed with the incomplete gear, the ejector rod movably penetrates through the material accumulation frame, the upper end of the ejector rod is located below the second sieve plate, and the second sieve plate is fixedly arranged in the material accumulation frame and is lower than the discharge channel.

As a further scheme of the invention: and an inclined stop block is arranged at the bottom of the screening frame.

As a further scheme of the invention: first sieve has two and the low side all to be connected with discharge passage, and two first sieve parallel arrangement just are located the first sieve mesh of top and are greater than the sieve mesh of the first sieve in below in the screening frame.

As a further scheme of the invention: the second sieve has two and the sieve mesh is corresponding with two first sieve meshes, the ejector pin activity runs through the second sieve that is located the below and installs the dead lever, and the dead lever is located second sieve below.

As a further scheme of the invention: and discharge openings are formed in the bottom of the material accumulation frame and the side wall of the material accumulation frame on one side of the second sieve plate.

As a further scheme of the invention: an auxiliary plate is arranged on the base, and the driven shaft is rotatably arranged in the auxiliary plate through a bearing.

As a further scheme of the invention: the feeder hopper below is provided with the baffle, and the feed opening of baffle is located the high-end one side of first sieve.

As a further scheme of the invention: set up the vibrations subassembly in the screening frame, the vibrations subassembly includes driving shaft, cam, mounting panel, reset spring, first sieve, dwang, spout, slider, pivot, strikes and beats ball, discharge passage and second sieve, and the driving shaft is connected with driving motor, and cam fixed mounting is on the driving shaft and outline and mounting panel one side sliding contact, and mounting panel opposite side fixed mounting has two push rods, and the activity of the push rod other end runs through screening frame lateral wall and articulates with the slider, and slider movable mounting is in the spout, and the spout is seted up in the dwang, the dwang rotates through the pivot to be installed in the screening case and the upper end and is connected with knocking the ball, fixed mounting has multiunit reset spring between mounting panel and the screening frame outer wall.

As a further scheme of the invention: the screening frame is internally provided with an intermittent blanking assembly, the intermittent blanking assembly comprises a plugging plate, a connecting rod and a rotary table, the rotary table is fixedly installed at the top of the driving shaft, one end of the connecting rod is eccentrically hinged to the periphery of the rotary table, the other end of the connecting rod is hinged to the plugging plate, and the plugging plate movably penetrates through the side wall of the screening frame and intermittently plugs a baffle blanking opening.

Compared with the prior art, the invention has the beneficial effects that:

through the arrangement of the screening component, the sand falls onto the first screen plate, and the smaller sand falls from the screen holes and then enters the bottom of the material accumulation frame from the bottom; the larger gravel is discharged into the second sieve plate through the discharge channel, the driving motor works to drive the driven shaft to rotate through the gear set, and further through the intermittent matching of the incomplete gear and the rack guide post, the top end of the ejector rod continuously impacts the second sieve plate to generate vibration, and the smaller gravel which cannot be screened from the first sieve plate falls to the bottom of the material accumulation frame through sieve holes of the second sieve plate, so that the screening effect is improved;

due to the arrangement of the vibration assembly, the screening effect of the first screen plate is improved, and the practicability is improved;

the setting of intermittent type unloading subassembly is controlled the unloading speed of grit, prevents to block up, has further improved screening efficiency and practicality.

Drawings

Fig. 1 is a schematic structural diagram of a gravel screening device for road construction.

Fig. 2 is a schematic structural diagram of a cam and a mounting plate in the sand screening device for road construction.

Fig. 3 is a structural schematic diagram of a turntable and a connecting rod in the sand screening device for road construction.

FIG. 4 is a schematic structural diagram of a transfer rod and a knocking ball in the sand screening device for road construction.

Fig. 5 is a schematic structural diagram of an incomplete gear and rack guide column in the sand screening device for road construction.

In the figure: 1-base, 2-supporting column, 3-screening frame, 4-feeding hopper, 5-baffle, 6-blocking plate, 7-connecting rod, 8-rotary table, 9-driving shaft, 10-cam, 11-mounting plate, 12-push rod, 13-reset spring, 14-first helical gear, 15-second helical gear, 16-driving motor, 17-driven shaft, 18-first screen plate, 19-rotating rod, 20-sliding chute, 21-sliding block, 22-rotating shaft, 23-knocking ball, 24-discharging channel, 26-discharging opening, 27-second screen plate, 29-push rod, 30-rack guide post, 31-incomplete gear, 32-fixing rod, 33-auxiliary plate, 34-material-accumulating frame, etc, 35-stop.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.