Gravel discharging device for cement-stabilized layer burdening

Abstract

The utility model relates to a gravel blanking device for cement-stabilized layer batching, which belongs to the technical field of cement-stabilized layer batching, and comprises a blanking hopper, a feed port and a blanking port, a filter screen is mounted in the feed port, four corners of the bottom of the filter screen are fixedly connected with shaking springs, and the shaking springs are fixedly connected with the blanking port. And the inner wall of the feeding hole is fixedly connected with a fixed plate. Through cooperative use of the filter screen, the shaking mechanism and the dredging mechanism, in the gravel discharging process, gravel with the particle size not meeting the batching requirement in gravel can be filtered, meanwhile, in the filtering process, the filter screen shakes under the action of the shaking mechanism, filter holes of the filter screen are prevented from being blocked by the gravel, and the filtering quality of the gravel is improved. And in the shaking process of the filter screen, the dredging mechanism can move up and down back and forth in the discharging opening to dredge the discharging opening, the discharging opening is prevented from being blocked by gravel, and construction continuity is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water stable layer batching technical field, concretely relates to a sandstone unloading device for water stable layer batching. BACKGROUND

[0002] Water stable layer is usually composed of granular material and mortar volume, the granular material is graded gravel, and the mortar volume includes water and cementitious material. The cementitious material is composed of cement and possible mixed materials. The mix proportion of the water stable layer should be previously tested in the laboratory to determine the cement content and the ratio of coarse and fine aggregates, and at the same time, the maximum dry density is determined. The common mix proportion of water stable material is 1:1:1:1.3, in which the cement content is about 5%. Raw material requirements: cement: ordinary portland cement with strength grade of 32.5 or 42.5 should be used, and the initial setting time should be greater than three hours, and the final setting time should be greater than six hours and less than ten hours. Water: it should meet the current "Drinking Water Health Standards" (GB5749), or non-drinking water with water quality inspection. Coarse aggregate: hard rock or gravel processed from gravel, or natural gravel should be used. The coarse aggregate should meet the requirements of crushing value, needle flake content, dust content and soft stone content. Fine aggregate: clean, dry, non-weathered and non-impure material with appropriate particle size distribution should be used. The particle size of the fine aggregate should meet the engineering requirements and have stable gradation.

[0003] At present, in the process of unloading sandstone for water stable layer batching, the particle size of sandstone needs to be ensured. Large particle size of sandstone can easily affect the flowability and easy compactibility of the mixture, and can also easily cause the mixing equipment to be stuck in the presence of large particle size sandstone, thereby affecting the service life of the mixing equipment. In addition, in the process of unloading sandstone, the sandstone may contain a certain amount of moisture, which can cause the sandstone to aggregate and block the discharge port, thereby affecting the continuity of construction. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the above problems and provides a sandstone unloading device for water stable layer batching with simple structure and reasonable design.

[0005] The utility model realizes the above-mentioned purposes through the following technical solutions:

[0006] A sandstone unloading device for water stable layer batching, comprising a discharge hopper, a feed inlet and a discharge port, a filter screen is installed in the feed inlet, a shaking spring is fixedly connected to the bottom of the filter screen at each corner, a fixed plate is fixedly connected to the inner wall of the feed inlet, the shaking spring is fixedly connected to the top of the fixed plate, a shaking mechanism is installed on the feed inlet, the filter screen shakes the sandstone under the action of the shaking mechanism, a dredging mechanism is fixedly connected to the bottom of the filter screen, and the dredging part of the dredging mechanism is located in the discharge port to dredge the discharge port.

[0007] As a further optimization scheme of the utility model, the feed inlet is fixedly connected at the top of the lower hopper, the lower discharge port is fixedly connected at the bottom of the lower hopper, and the lower hopper is fixedly connected with supporting legs on both sides.

[0008] As a further optimization scheme of the utility model, the shaking mechanism comprises a motor mounted on the sidewall of the feed inlet, the output end of the motor is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a vibrating block, the outer wall of the vibrating block is fixedly connected with a protruding portion, the rotating shaft penetrates through the feed inlet and is rotatably connected with the feed inlet, and the protruding portion is arranged at the bottom of the filter screen.

[0009] As a further optimization scheme of the utility model, the bottom of the filter screen is fixedly connected with a vibrating rod, the vibrating rod is arranged opposite to the top of the vibrating block, and the vibrating rod is matched with the protruding portion.

[0010] As a further optimization scheme of the utility model, the dredging mechanism comprises a connecting rod fixedly connected at the bottom of the filter screen, the connecting rod is fixedly connected with a dredging frame, and the dredging frame is arranged in the lower discharge port.

[0011] As a further optimization scheme of the utility model, the part of the connecting rod arranged in the lower discharge port and the dredging frame jointly form a dredging portion.

[0012] The utility model discloses the beneficial effect lies in: the utility model discloses the cooperation of filter screen, shaking mechanism and dredging mechanism, in the process of sandstone discharging, can filter the sandstone of the particle size that does not meet the batching requirement in the sandstone, simultaneously in the process of filtering, make the filter screen produce the shaking under the action of shaking mechanism, prevent the filter hole of filter screen from being blocked by sandstone, influence filtering efficiency, and in the process of filter screen shaking, will make dredging mechanism move up and down in lower discharge port, dredge lower discharge port, prevent lower discharge port from being blocked by sandstone, guarantee the continuity of construction. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole front three-dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is the whole three-dimensional structure schematic diagram of the utility model from the bottom;

[0015] Figure 3 It is the three-dimensional structure schematic diagram of the utility model partially cut open;

[0016] Figure 4 It is the three-dimensional structure schematic diagram of the shaking mechanism and the dredging mechanism of the utility model from the bottom.

[0017] In the figure: 101, discharge hopper; 102, feed port; 103, discharge port; 2, support leg; 301, motor; 302, rotating shaft; 303, vibration block; 304, protrusion; 401, filter screen; 402, shaking spring; 403, fixing plate; 404, connecting rod; 405, dredging frame; 406, vibration rod. DETAILED DESCRIPTION

[0018] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figures 1-4 As shown, a sand and gravel feeding device for water-stabilizing layer preparation includes a feeding hopper 101, a feeding port 102 and a feeding port 103. A filter screen 401 is installed in the feeding port 102. The four corners of the bottom of the filter screen 401 are fixedly connected with shaking springs 402. The inner wall of the feeding port 102 is fixedly connected with a fixing plate 403. There are four fixing plates 403. The shaking springs 402 are fixedly connected to the top of the fixing plate 403. A shaking mechanism is installed on the feeding port 102. The filter screen 401 shakes the sand and gravel under the action of the shaking mechanism. The bottom of the filter screen 401 is fixedly connected with a dredging mechanism, and the dredging part of the dredging mechanism is located in the feeding port 103, which is used to dredge the feeding port 103. The feeding port 102 is fixedly connected to the top of the feeding hopper 101, and the feeding port 103 is fixedly connected to the bottom of the feeding hopper 101. Both sides of the feeding hopper 101 are fixedly connected with support legs 2.

[0021] When in use, the discharge device is mounted on the conveying equipment so that the discharge port 103 is facing the conveying equipment, and then the shaking mechanism is started, and the sand and gravel used for the water-stable layer ingredients can be fed from the feed port 102, so that the sand and gravel fall on the filter screen 401. The operation of the shaking mechanism will drive the filter screen 401 to shake up and down under the action of the shaking spring 402, and filter the large-sized sand and gravel that do not meet the particle size requirements in the sand and gravel, so that the sand and gravel that meet the particle size requirements pass through the filter screen 401 into the discharge hopper 101, and then fall on the conveying equipment through the discharge port 103. In the process of shaking the filter screen 401, the dredging mechanism will be driven to shake, so that the dredging part of the dredging mechanism will dredge the discharge port 103, and prevent the discharge port 103 from being blocked by sand and gravel.

[0022] The sand and stone that does not meet the particle size requirement is filtered, the particle size of the sand and stone is ensured, the flowability and the easy compactibility of the mixture are prevented from being affected by the sand and stone with large particle size, the mixing equipment is prevented from being stuck due to the existence of the sand and stone with large particle size, the mixing equipment is well protected, the sand and stone is prevented from blocking the discharge port 103, and the continuity of construction is ensured.

[0023] As shown in Figure 3 and Figure 4 , the shaking mechanism comprises a motor 301 mounted on the side wall of the feeding port 102, the output end of the motor 301 is fixedly connected with a rotating shaft 302, the outer wall of the rotating shaft 302 is fixedly connected with a vibrating block 303, the vibrating block 303 is provided in two and located at the two ends of the rotating shaft 302, the outer wall of the vibrating block 303 is fixedly connected with a protruding part 304, the rotating shaft 302 penetrates through the feeding port 102 and is rotationally connected with the feeding port 102, the protruding part 304 is arranged at the bottom of the filter screen 401, the bottom of the filter screen 401 is fixedly connected with a vibrating rod 406, the vibrating rod 406 is arranged opposite to the top of the vibrating block 303, and the vibrating rod 406 is matched with the protruding part 304.

[0024] In use, before the sand and stone starts to be discharged, the motor 301 is started, in the process that the sand and stone is discharged and filtered by the filter screen 401, the rotating shaft 302 drives the vibrating block 303 to rotate due to the working of the motor 301, the protruding part 304 intermittently lifts the vibrating rod 406, the filter screen 401 is lifted, the shaking spring 402 is stretched, the vibrating rod 406 is suddenly moved downward under the action of the shaking spring 402 when the vibrating rod 406 is separated from the protruding part 304, the filter screen 401 is shaken, and the process is repeated until all the sand and stone is discharged, so that the filtering efficiency of the filter screen 401 is ensured.

[0025] As shown in Figures 2-4 , the dredging mechanism comprises a connecting rod 404 fixedly connected at the bottom of the filter screen 401, and a dredging frame 405 fixedly connected on the connecting rod 404, the dredging frame 405 is located in the discharge port 103, and the part of the connecting rod 404 located in the discharge port 103 and the dredging frame 405 jointly form a dredging part.

[0026] In use, when the filter screen 401 shakes, the dredging frame 405 is driven by the connecting rod 404 to move up and down in the discharge port 103, the sand and stone that may be blocked in the discharge port 103 is cut, so that the discharge port 103 is dredged, and the continuity of construction is ensured.

[0027] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A sand and gravel dispensing device for water stable layering, comprising a dispensing hopper (101), a feed inlet (102) and a dispensing outlet (103), characterized in that: The filter screen (401) is installed in the feeding port (102), the bottom of the filter screen (401) is fixedly connected with a shaking spring (402), the inner wall of the feeding port (102) is fixedly connected with a fixed plate (403), the shaking spring (402) is fixedly connected to the top of the fixed plate (403), a shaking mechanism is installed on the feeding port (102), the filter screen (401) shakes the sand and gravel under the action of the shaking mechanism, the bottom of the filter screen (401) is fixedly connected with a dredging mechanism, and the dredging part of the dredging mechanism is located in the discharging port (103) and is used for dredging the discharging port (103).

2. A sand underfeed device for water stable layer formulation according to claim 1, characterized in that: The feeding port (102) is fixedly connected to the top of the discharging hopper (101), the discharging port (103) is fixedly connected to the bottom of the discharging hopper (101), and the two sides of the discharging hopper (101) are fixedly connected with supporting legs (2).

3. A sand underfeed device for water stable layer formulation according to claim 1, characterized in that: The shaking mechanism comprises a motor (301) installed on the side wall of the feeding port (102), the output end of the motor (301) is fixedly connected with a rotating shaft (302), the outer wall of the rotating shaft (302) is fixedly connected with a vibrating block (303), the outer wall of the vibrating block (303) is fixedly connected with a protruding part (304), the rotating shaft (302) penetrates through the feeding port (102) and is rotationally connected with the feeding port (102), and the protruding part (304) is arranged at the bottom of the filter screen (401).

4. A sand and aggregate dispensing apparatus for water stable layering according to claim 3, wherein: The bottom of the filter screen (401) is fixedly connected with a vibrating rod (406), the vibrating rod (406) is arranged opposite to the top of the vibrating block (303), and the vibrating rod (406) is matched with the protruding part (304).

5. A sand underfeed device for water stable layer formulation according to claim 1, characterized in that: The dredging mechanism comprises a connecting rod (404) fixedly connected to the bottom of the filter screen (401), the connecting rod (404) is fixedly connected with a dredging frame (405), and the dredging frame (405) is located in the discharging port (103).

6. A sand underfeed device for water stable layer formulation according to claim 5, characterized in that: The part, where the connecting rod (404) is located in the discharging port (103), and the dredging frame (405) jointly constitute a dredging part.

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