Overlimit material filtering device for aggregate hopper

Abstract

The utility model discloses an over-limit material filtering device for an aggregate hopper, which comprises a sieve plate arranged above the aggregate hopper, the aggregate hopper is arranged on a fixed frame, a fixed rotating shaft and a supporting rod which are fixed on the fixed frame are respectively and horizontally arranged on two sides of the aggregate hopper, and one side of the bottom of the sieve plate is fixedly connected with a shaft seat. The sieve plate is rotationally connected with the fixed rotating shaft through the shaft seat; the supporting rod is supported on the other side of the bottom of the sieve plate; a steel cable is connected to one side, corresponding to the supporting rod, of the sieve plate, bypasses a pulley mounted on a fixing frame above the sieve plate and is connected with a winch arranged on one side of the sieve plate. By arranging the winch, the winch pulls the steel cable upwards through the pulley, the sieve plate can be driven by the steel cable to turn over upwards around the fixed rotating shaft, overrun materials are poured down, manual climbing is not needed, the sieve plate cannot be damaged, and use is very convenient; therefore, the problem that the sieve plate above the existing aggregate hopper is difficult to clean down after filtering the overrun materials is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aggregate hoppers, in particular to an aggregate hopper over-limit material filtering device. Background Art

[0002] Cement and asphalt building material manufacturers load aggregate hoppers, using weighing conveyor belts installed below them to achieve automatic weighing and quantitative conveying. Aggregates are stored in a dedicated aggregate storage area within the factory and are deposited into the hoppers by forklifts. Since purchased aggregates are typically only briefly screened by the distributor, they often contain oversized aggregates. Directly adding aggregates to the hopper would affect the mix and production of cement and asphalt. Therefore, a sieve plate is installed above the hopper for filtration.

[0003] However, although the over-limit aggregates are filtered out, the aggregate hopper and the screen plate are at a certain height. It is troublesome to clean out the over-limit aggregates from above the screen plate. If they are not cleaned in time, it will affect the subsequent feeding for a long time. If they are cleaned manually, they need to climb high, which is troublesome and there are safety issues. If they are cleaned with a forklift, it is difficult to control the accuracy and the screen plate is easily damaged, which is insufficient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides an aggregate hopper over-limit material filtering device, which is used to solve the problem that the over-limit material is difficult to clean up after being filtered by the sieve plate above the existing aggregate hopper.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An aggregate hopper over-limit material filtering device comprises a sieve plate arranged above the aggregate hopper, the aggregate hopper being mounted on a fixed frame, a fixed rotating shaft and a support rod being horizontally arranged on both sides of the aggregate hopper, a shaft seat being fixedly connected to one side of the bottom of the sieve plate, the sieve plate being rotatably connected to the fixed rotating shaft via the shaft seat, and the support rod being supported on the other side of the bottom of the sieve plate;

[0007] A steel cable is connected to one side of the sieve plate corresponding to the support rod. The steel cable passes over a pulley installed on a fixed frame above the sieve plate and is connected to a winch provided on one side of the sieve plate.

[0008] Preferably, the sieve plate is arranged at an angle, and the height of the sieve plate on the side corresponding to the support rod is greater than the height of the sieve plate on the side corresponding to the fixed shaft.

[0009] Preferably, the winch is located on one side of the support rod corresponding to the sieve plate, and a side baffle is provided on the top of the aggregate hopper. The side baffle on the top of the side of the aggregate hopper corresponding to the support rod is supported below the sieve plate, and the distance between the side baffle located between the support rod and the fixed rotating shaft and the sieve plate does not exceed one centimeter.

[0010] Preferably, the screen plate includes a screen area and a dumping area, the screen area is located between the support rod and the fixed rotating shaft, and the dumping area is located outside the aggregate hopper and on a side of the fixed rotating shaft away from the support rod.

[0011] Preferably, the steel cable is connected to a connecting ear fixedly connected to the screen plate, and the steel cable includes a connecting cable and a traction cable. There are two connecting cables connected to the connecting ears symmetrically arranged on one side of the screen plate. The two connecting cables are commonly connected to one end of the traction cable and are connected to the winch through the traction cable.

[0012] Preferably, the pulley is located at a central position above the aggregate hopper and on a side of the aggregate hopper corresponding to the hoist, and the distance between the pulley and the screen plate is not less than the length of the screen plate.

[0013] Preferably, a rain shelter is installed on the top of the fixing frame and is located above the sieve plate and the pulley.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides a winch, which pulls the steel cable upwards through a pulley, and can drive the sieve plate to turn upwards around the fixed rotating shaft through the steel cable, so that the over-limit materials are dumped down. There is no need for manual climbing and the sieve plate will not be damaged. The use is very convenient, thereby solving the problem that the over-limit materials filtered by the sieve plate above the existing aggregate hopper are difficult to clean up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a partial cross-sectional view of the aggregate hopper and screen plate of the utility model;

[0018] Figure 3 This is a side view of the aggregate hopper and screen plate of the utility model;

[0019] Figure 4 This is a top view of the screen plate of the present invention.

[0020] In the figure: 1. Aggregate hopper; 101. Side baffle; 2. Screen plate; 201. Screen area; 202. Dumping area; 3. Fixed frame; 4. Fixed shaft; 5. Support rod; 6. Axle seat; 7. Steel cable; 701. Connecting cable; 702. Traction cable; 8. Pulley; 9. Winch; 10. Connecting ear; 11. Rain shelter. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-4 As shown, the utility model provides a technical solution: a device for filtering over-limit materials in an aggregate hopper, comprising a sieve plate 2 arranged above an aggregate hopper 1, the sieve plate 2 being arranged obliquely, and the height of the sieve plate 2 on the side corresponding to the support rod 5 being greater than the height on the side corresponding to the fixed rotating shaft 4, and a side baffle 101 being provided on the top of the aggregate hopper 1, the side baffle 101 on the top of the side corresponding to the support rod 5 of the aggregate hopper 1 being supported below the sieve plate 2, and the distance between the side baffle 101 located between the support rod 5 and the fixed rotating shaft 4 and the sieve plate 2 being no more than one centimeter;

[0023] The aggregate hopper 1 is mounted on a fixed frame 3. A fixed shaft 4 and a support rod 5 fixed to the fixed frame 3 are horizontally arranged on both sides of the aggregate hopper 1. A shaft seat 6 is fixedly connected to one side of the bottom of the sieve plate 2. The sieve plate 2 is rotatably connected to the fixed shaft 4 through the shaft seat 6. The support rod 5 is supported on the other side of the bottom of the sieve plate 2. The sieve plate 2 includes a screen area 201 and a dumping area 202. The screen area 201 is located between the support rod 5 and the fixed shaft 4. The dumping area 202 is located outside the aggregate hopper 1 and on the side of the fixed shaft 4 away from the support rod 5.

[0024] A steel cable 7 is connected to one side of the sieve plate 2 corresponding to the support rod 5. The steel cable 7 is connected to a connecting ear 10 fixedly connected to the sieve plate 2. The steel cable 7 includes a connecting cable 701 and a traction cable 702. The connecting cable 701 has two connecting ears 10 symmetrically arranged on one side of the sieve plate 2. The two connecting cables 701 are connected to one end of the traction cable 702 and are connected to the winch 9 through the traction cable 702.

[0025] The steel cable 7 passes over the pulley 8 installed on the fixed frame 3 above the sieve plate 2 and is connected to the winch 9 provided on one side of the sieve plate 2. The winch 9 is located on the side of the sieve plate 2 corresponding to the support rod 5. The pulley 8 is located at the central position above the aggregate hopper 1 and on the side of the winch 9 above the aggregate hopper 1. The distance between the pulley 8 and the sieve plate 2 is not less than the length of the sieve plate 2. A rain shelter 11 is installed on the top of the fixed frame 3 above the sieve plate 2 and the pulley 8.

[0026] Working principle:

[0027] After the excess aggregate is filtered on the sieve plate 2, the steel cable 7 is regularly wound through the winch 9. The steel cable 7 passes over the pulley 8 and pulls the sieve plate 2 upward, causing the sieve plate 2 to flip upward around the fixed rotating shaft 4, dumping the excess material. Then the steel cable 7 is unwound through the winch 9. Under the action of gravity of the sieve plate 2, the steel cable 7 is pulled downward to cooperate with the winch 9 to unwind, and the sieve plate 2 is flipped downward until it is placed on the support rod 5, completing the cleaning of the excess aggregate. The whole process does not require manual climbing and will not damage the sieve plate 2, so it is very convenient to use.

[0028] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aggregate hopper over-limit material filtering device, comprising a sieve plate (2) arranged above the aggregate hopper (1), characterized in that: The aggregate hopper (1) is mounted on a fixed frame (3), and a fixed rotating shaft (4) and a support rod (5) fixed to the fixed frame (3) are horizontally arranged on both sides of the aggregate hopper (1). One side of the bottom of the sieve plate (2) is fixedly connected to a shaft seat (6), and the sieve plate (2) is rotatably connected to the fixed rotating shaft (4) through the shaft seat (6). The support rod (5) is supported on the other side of the bottom of the sieve plate (2); A steel cable (7) is connected to one side of the sieve plate (2) corresponding to the support rod (5), and the steel cable (7) passes over a pulley (8) installed on a fixed frame (3) above the sieve plate (2) and is connected to a winch (9) provided on one side of the sieve plate (2).

2. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: The sieve plate (2) is arranged at an angle, and the height of the sieve plate (2) on the side corresponding to the support rod (5) is greater than the height on the side corresponding to the fixed rotating shaft (4).

3. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: The hoist (9) is located on a side of the sieve plate (2) corresponding to the support rod (5), and a side baffle (101) is provided on the top of the aggregate hopper (1). The side baffle (101) on the top of the side of the aggregate hopper (1) corresponding to the support rod (5) is supported below the sieve plate (2), and the distance between the side baffle (101) located between the support rod (5) and the fixed rotating shaft (4) and the sieve plate (2) does not exceed one centimeter.

4. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: The screen plate (2) comprises a screen area (201) and a dumping area (202), wherein the screen area (201) is located between the support rod (5) and the fixed rotating shaft (4), and the dumping area (202) is located outside the aggregate hopper (1) and on a side of the fixed rotating shaft (4) away from the support rod (5).

5. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: The steel cable (7) is connected to a connecting ear (10) fixedly connected to the screen plate (2). The steel cable (7) includes a connecting cable (701) and a traction cable (702). The connecting cable (701) has two connecting ears (10) symmetrically arranged on one side of the screen plate (2). The two connecting cables (701) are connected to one end of the traction cable (702) and are connected to the winch (9) through the traction cable (702).

6. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: The pulley (8) is located at a central position above the aggregate hopper (1) and on a side of the aggregate hopper (1) corresponding to the hoist (9), and the distance between the pulley (8) and the screen plate (2) is not less than the length of the screen plate (2).

7. The aggregate hopper over-limit material filtering device according to claim 1, characterized in that: A rain shelter (11) is installed on the top of the fixing frame (3) and is located above the sieve plate (2) and the pulley (8).

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