Screening hopper and screening device

Abstract

The utility model relates to the field of gravel separation, in particular to a screening hopper and a screening device, the screening hopper comprises a cavity and a screening mechanism, the cavity is provided with a containing space, a feeding port and a discharging port, the feeding port and the discharging port are both communicated with the containing space and are arranged in a staggered mode, and the screening mechanism is located in the containing space; the screening mechanism is provided with a feeding port, and the feeding port communicates with the feeding port. A vibration device is arranged in the cavity and is connected with the screening mechanism; the cavity is provided with a connecting part used for being connected with a mechanical arm of the excavator. The screening hopper is connected with the mechanical arm of the excavator, so that the excavator can screen gravels on a construction site, fine sand needed by directly-buried laying of the cable is obtained, purchasing and transporting of river sand are avoided, the construction cost of a project is reduced, construction delay caused by transportation difficulty is avoided, and the direct-buried laying efficiency of the cable is improved; the screening device comprises a screening hopper and an excavator, and a connecting part of the screening hopper is connected with a mechanical arm of the excavator.

Description

Technical Field

[0001] The utility model relates to the field of sand and gravel separation, in particular to a screening hopper and a screening device. Background Art

[0002] When laying photovoltaic lines, in order to prevent cable damage, most cables are buried directly below the ground, especially in frozen soil areas. The specification requires that when cables are directly buried in frozen soil areas, they should be buried below 1.96m in the frozen soil layer, and a fine sand layer or soft soil with a thickness of not less than 100mm should be laid on the upper and lower layers of the cables.

[0003] However, river sand is usually used for direct burial currently, and some projects require longer cables for direct burial, resulting in higher procurement and transportation costs for river sand. In particular, most frozen soil areas are located in remote areas, and untimely transportation of river sand will lead to delays in construction.

[0004] Therefore, there is an urgent need for a technical solution to solve the technical problems of high cost of direct burial of cables in frozen soil areas and difficulty in transporting river sand. Utility Model Content

[0005] The utility model aims to provide a screening hopper and a screening device to solve the technical problems that the direct burial laying cost of cables in frozen soil areas is high and the transportation of river sand is difficult.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A screening hopper comprises a cavity and a screening mechanism, wherein the cavity is provided with a containing space, a feed port and a discharge port, the feed port and the discharge port are both connected to the containing space, the feed port and the discharge port are staggered, and the screening mechanism is located in the containing space;

[0008] The screening mechanism is provided with a feed inlet, and the feed inlet is connected with the feed inlet;

[0009] The cavity is provided with a vibration device, and the vibration device is connected to the screening mechanism;

[0010] The cavity is provided with a connecting portion, and the connecting portion is used to connect the mechanical arm of the excavator.

[0011] The utility model discloses a screening hopper, wherein sand and gravel to be screened enter a screening mechanism located in a containing space from a feed port, the sand and gravel enter the screening mechanism from the feed port for screening, the screening mechanism continuously shakes through a vibration device to accelerate the screening process, thereby separating fine sand that meets the use requirements and discharges it from a cavity from a discharge port, and the sand and gravel remaining in the screening mechanism after screening is completed is discharged from the feed port, thereby realizing the screening of sand and gravel; the fine sand can be used for direct burial laying of cables, thereby avoiding the purchase of river sand and avoiding delays in the construction period caused by the transportation of river sand.

[0012] As a preferred solution of the utility model, the screening mechanism includes a cylindrical structure, the cylindrical structure is provided with a screening space and a plurality of penetrating screen holes, the screen holes are connected to the screening space, and the feed inlet is located at the end of the cylindrical structure. The screening mechanism is a cylindrical structure, and the sand and gravel move relative to the cylindrical structure in the screening space, so that the fine sand that meets the use requirements is screened out from the screen holes, and the large stones are left in the screening space, thereby achieving the separation of sand and gravel; the size of the screen holes can be set according to the use requirements.

[0013] As a preferred solution of the utility model, the vibration device includes a vibration motor, and the output end of the vibration motor is connected to the end of the cylindrical structure away from the feeding port. The output end of the vibration motor is connected to the center of the end surface of the cylindrical structure, so that the vibration motor can drive the cylindrical structure to shake.

[0014] As a preferred solution of the utility model, a quality detection device is provided at the output end, and the quality detection device is connected to the cylindrical structure. The quality detection device can monitor the quality of the cylindrical structure in real time. When the quality of the screened material no longer changes or changes very little, it is confirmed that the screening process has ended, and the screening is incomplete and the screening time process has occurred; the quality detection device is connected to an alarm device. When the quality of the screened material no longer changes or changes very little, the alarm device will sound an alarm to the operator, thereby reminding the operator to stop the vibration motor in time.

[0015] As a preferred solution of the utility model, the cavity includes a top plate, a front panel, a connecting rod and two oppositely arranged side panels, the connecting rod is oppositely arranged to the front panel, the top plate is connected to the side panels, the front panel is connected to the top plate, and the front panel is connected to the side panels; the top plate is provided with the connecting portion; the front panel is provided with the feed port; the screening mechanism is connected to the connecting rod. The top plate, the front panel, the connecting rod and the two oppositely arranged side panels together form a cavity with an empty bottom, and the empty position at the bottom of the cavity serves as a discharge port.

[0016] As a preferred solution of the utility model, the side plate is provided with a hollow part, and the hollow part is connected to the accommodation space. The side plate is provided with a hollow part, and fine sand can be discharged from the accommodation space through the hollow part of the side plate, which increases the discharge mode of fine sand and thus improves the screening efficiency of sand and gravel.

[0017] As a preferred solution of the utility model, the front panel is arranged with a plurality of bucket teeth, and adjacent bucket teeth are arranged at intervals. The bucket teeth are arranged to facilitate the excavation of sand and gravel, so that the screening hopper can perform excavation operations.

[0018] As a preferred solution of the utility model, the side of the front panel away from the screening mechanism is constructed as an arc surface, which is convenient for sand and gravel to enter the feed port from the arc surface, and convenient for operators to operate the screening hopper to dig sand and gravel.

[0019] As a preferred solution of the utility model, the connecting part includes a first hinge part and a second hinge part, and the first hinge part and the second hinge part can both be hinged to the mechanical arm. The first hinge part and the second hinge part can both be hinged to the mechanical arm, so that the mechanical arm can control the screening hopper to rotate within a certain range, so that the screening mechanism has an inclination when performing screening operations, and prevents sand and gravel from falling out of the feed port when screening sand and gravel.

[0020] A screening device comprises the above-mentioned screening hopper and an excavator, wherein the connecting part is connected to a mechanical arm of the excavator.

[0021] The utility model provides a screening device which is connected with the mechanical arm of the excavator through a screening hopper, so that the staff can obtain fine sand on-site at the direct burial laying site through the excavator, and the obtained fine sand can be used for the direct burial laying of cables.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0023] 1. The utility model provides a screening hopper, wherein the sand and gravel to be screened enter the screening mechanism located in the accommodating space from the feed port, and the sand and gravel enter the screening mechanism from the feed port for screening. The screening mechanism continuously shakes through a vibration device to accelerate the screening process, thereby separating the fine sand that meets the use requirements and discharging it from the discharge port. After the screening is completed, the sand and gravel remaining in the screening mechanism are discharged from the feed port, thereby realizing the screening of the sand and gravel; the fine sand can be used for the direct burial of cables, thereby avoiding the purchase of river sand and avoiding delays in the construction period caused by the transportation of river sand.

[0024] 2. The utility model provides a screening hopper with a simple structure, easy manufacturing and convenient use. The screening hopper is connected to the mechanical arm of the excavator, so that the excavator can screen sand and gravel at the construction site, thereby obtaining the fine sand required for direct buried cable laying, avoiding the purchase and transportation of river sand, reducing the construction cost of the project, avoiding construction delays caused by transportation difficulties, and improving the direct buried laying efficiency of the cable. It has good economic value and practical value.

[0025] 3. A screening device of the utility model is connected to the mechanical arm of the excavator through a screening hopper, so that the staff can obtain fine sand on-site at the direct burial laying site through the excavator. The obtained fine sand can be used for the direct burial laying of cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a screening hopper in Example 1;

[0027] Figure 2 is a structural schematic diagram of a screening hopper in Example 1;

[0028] Figure 3 is a structural schematic diagram of a screening hopper in Example 1;

[0029] Figure 4 is a schematic structural diagram of the vibration device of Example 1;

[0030] Figure 5 It is a structural schematic diagram of a screening device in Example 4.

[0031] icon:

[0032] 1- cavity, 2- screening mechanism, 3- feed port, 4- feed inlet, 5- connecting part, 6- vibration device, 7- bucket tooth, 8- connecting rod, 9- side plate, 10- top plate, 11- front panel, 12- discharge port, 13- mechanical arm, 14- quality detection device, 15- output shaft, 51- first hinge part, 52- second hinge part. DETAILED DESCRIPTION

[0033] The utility model is described in detail below in conjunction with the accompanying drawings.

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] Example 1

[0036] like Figure 1-Figure 4A screening hopper shown in the figure comprises a cavity 1 and a screening mechanism 2, wherein the cavity 1 is provided with a containing space, a feed port 3 and a discharge port 12, wherein the feed port 3 and the discharge port 12 are both connected to the containing space, the feed port 3 and the discharge port 12 are staggered, and the screening mechanism 2 is located in the containing space;

[0037] The screening mechanism 2 is provided with a feed inlet 4, and the feed inlet 4 is connected with the feed inlet 3;

[0038] The cavity 1 is provided with a vibration device 6, and the vibration device 6 is connected to the screening mechanism 2;

[0039] The cavity 1 is provided with a connecting portion 5, and the connecting portion 5 is used to connect to a mechanical arm 13 of an excavator.

[0040] The sand and gravel to be screened enter the screening mechanism 2 located in the accommodating space from the feed port 3, and the sand and gravel enter the screening mechanism 2 from the feed port 4 for screening. The screening mechanism 2 continuously shakes through the vibration device to accelerate the screening process, thereby separating the fine sand that meets the use requirements and discharging it from the discharge port 12 of the cavity 1. After the screening is completed, the sand and gravel remaining in the screening mechanism 2 are discharged from the feed port 3, thereby realizing the screening of the sand and gravel; the fine sand can be used for the direct burial of cables, thereby avoiding the purchase of river sand and avoiding delays in the construction period caused by the transportation of river sand.

[0041] Specifically, the screening mechanism 2 is a cylindrical structural member, and a cylindrical screening space is arranged on the cylindrical structural member. The cylindrical structural member is provided with a plurality of through sieve holes, which are connected to the screening space. The feed port 4 is located at the end of the cylindrical structural member, and the sieve holes are distributed on the side wall of the cylindrical structural member and the end face of the cylindrical structural member away from the feed port 4, so that the cylindrical structural member can perform screening operations on sand and gravel. When screening the sand and gravel, the fine sand that meets the requirements for direct burial of cables leaks out of the screening space through the sieve holes and is discharged from the cavity 1 from the discharge port 12, and the sand and gravel that do not meet the requirements for direct burial of cables remain in the screening space, and the sand and gravel that do not meet the requirements for direct burial of cables are poured out from the feed port 4 after the screening operation is completed.

[0042] Specifically, the screening mechanism 2 is rotatably connected to the cavity 1, and the cavity 1 is provided with a vibration motor as a vibration device 6, and the vibration motor is drivingly connected to the screening mechanism 2; an output shaft 15 is provided at the input end of the vibration motor, and a quality detection device 14 is provided on the output shaft 15, and the quality detection device 14 is connected to the end face of the cylindrical structure away from the feed port 4 and the connection is located at the center of the end face. The quality detection device 14 can monitor the quality of the cylindrical structure in real time. When the quality of the screened material no longer changes or changes very little, it is confirmed that the screening process has ended, and incomplete screening and screening time process have occurred.

[0043] Specifically, the discharge port 12 is located at the bottom of the cavity 1; the cavity 1 is composed of a top plate 10, a front panel 11, a connecting rod 8 and two oppositely arranged side panels 9, the connecting rod 8 is arranged opposite to the front panel 11, the top plate 10 is connected to the side panel 9, the front panel 11 is connected to the top plate 10, and the front panel 11 is connected to the side panel 9; the top plate 10 is provided with a connecting portion 5; the front panel 11 is provided with a feed port 3, and the screening mechanism 2 is connected to the connecting rod 8; the connecting rod 8 is provided with two, and the two connecting rods 8 are arranged in parallel, one end of the connecting rod 8 is connected to one of the side panels 9, and the other end is connected to the other side panel 9; the vibration motor is provided in the middle of the connecting rod 8, so that the vibration motor can drive the cylindrical structure to shake; the side of the front panel 11 away from the screening mechanism 2 is constructed as an arc surface, and the feed port 3 is provided at the center of the front panel 11.

[0044] Specifically, a plurality of bucket teeth 7 are arranged on the front panel 11, and adjacent bucket teeth 7 are arranged at intervals; the bucket teeth 7 are arranged at the bottom edge of the front panel 11; the bucket teeth 7 are pyramid-shaped structural members; through the arrangement of the bucket teeth 7, the screening hopper can perform excavation operations, and it is also convenient for operators to operate the screening hopper to obtain sand and gravel to be screened.

[0045] Specifically, the connecting part 5 includes a first hinged part 51 and a second hinged part 52, and both the first hinged part 51 and the second hinged part 52 can be hinged to the robot arm 13; the first hinged part 51 and the second hinged part 52 are arranged at intervals, and the first hinged part 51 and the second hinged part 52 are both rod-shaped structures, which are connected to the robot arm 13 through the first hinged part 51 and the second hinged part 52, so that the robot arm 13 can control the screening hopper to perform screening operations.

[0046] Preferably, the vibration motor is a hydraulic vibration motor.

[0047] A screening hopper of the present embodiment, when in use, the sand and gravel to be screened enter the screening space of the cylindrical structure from the feed port 3 and the feed inlet 4, and the cylindrical structure is rotated by controlling the hydraulic motor to make the fine sand that meets the requirements fall out of the sieve holes and be discharged from the cavity 1 from the discharge port 12 and the hollow part, and the larger sand and gravel remain in the screening space. After the screening operation is completed, the larger sand and gravel are discharged from the screening space through the feed port 3 and the feed inlet 4, so as to obtain fine sand for direct burial laying at the construction site.

[0048] Example 2

[0049] A screening hopper in this embodiment has a structure substantially the same as that of embodiment 1. The difference from embodiment 1 is that a hollow portion is provided on the side plate 9, and the hollow portion is connected to the accommodating space. Fine sand after screening can fall out from the hollow portion, which speeds up the separation of sand and gravel and improves the efficiency of sand and gravel separation.

[0050] Example 3

[0051] like Figure 5 The screening device shown includes a screening hopper of Example 1 / Example 2, and also includes an excavator, and the connecting part 5 is connected to the mechanical arm 13 of the excavator.

[0052] Specifically, the first hinged portion 51 is connected to the hydraulic rod of the mechanical arm 13, and the second hinged portion 52 is connected to the rod body of the mechanical arm 13, so that the screening hopper can be tilted to facilitate the excavation and screening operations.

[0053] By connecting the screening hopper to the mechanical arm 13 of the excavator, the staff can obtain fine sand on-site at the direct burial laying site through the excavator, and the obtained fine sand can be used for the direct burial laying of the cable.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screening hopper, characterized in that: The invention comprises a cavity (1) and a screening mechanism (2), wherein the cavity (1) is provided with a receiving space, a feed port (3) and a discharge port (12), the feed port (3) and the discharge port (12) are both connected to the receiving space, the feed port (3) and the discharge port (12) are staggered, and the screening mechanism (2) is located in the receiving space; The screening mechanism (2) is provided with a feed inlet (4), and the feed inlet (4) is connected to the feed inlet (3); The cavity (1) is provided with a vibration device (6), and the vibration device (6) is connected to the screening mechanism (2); The cavity (1) is provided with a connecting portion (5), and the connecting portion (5) is used to connect to a mechanical arm (13) of an excavator.

2. A screening hopper as claimed in claim 1, characterized in that: The screening mechanism (2) comprises a cylindrical structural member, the cylindrical structural member is provided with a screening material space and a plurality of penetrating screening holes, the screening holes are in communication with the screening material space, and the feed inlet (4) is located at the end of the cylindrical structural member.

3. A screening hopper as claimed in claim 2, characterized in that: The vibration device (6) comprises a vibration motor, wherein the output end of the vibration motor is connected to an end of the cylindrical structure away from the feed inlet (4).

4. A screening hopper as claimed in claim 3, characterized in that: The output end is provided with a quality detection device (14), and the quality detection device (14) is connected to the cylindrical structure.

5. A screening hopper as claimed in claim 1, characterized in that: The cavity (1) comprises a top plate (10), a front panel (11), a connecting rod (8) and two side panels (9) arranged opposite to each other, the connecting rod (8) and the front panel (11) are arranged opposite to each other, the top plate (10) and the side panels (9) are connected, the front panel (11) and the top plate (10) are connected, and the front panel (11) and the side panels (9) are connected; the top plate (10) is provided with the connecting portion (5); the front panel (11) is provided with the feed port (3), and the screening mechanism (2) is connected to the connecting rod (8).

6. A screening hopper as claimed in claim 5, characterized in that: The side plate (9) is provided with a hollow portion, and the hollow portion is communicated with the accommodating space.

7. A screening hopper as claimed in claim 5, characterized in that: The front panel (11) is provided with a plurality of bucket teeth (7) arranged in an arranged manner, and adjacent bucket teeth (7) are provided with intervals.

8. A screening hopper as claimed in claim 5, characterized in that: The side of the front panel (11) away from the screening mechanism (2) is constructed as a curved surface.

9. A screening hopper according to any one of claims 1 to 8, characterized in that: The connecting portion (5) comprises a first hinged portion (51) and a second hinged portion (52), and both the first hinged portion (51) and the second hinged portion (52) are capable of being hinged to the mechanical arm (13).

10. A material screening device, characterized in that: The invention comprises a screening hopper according to any one of claims 1 to 9, and further comprises an excavator, wherein the connecting portion (5) is connected to a mechanical arm (13) of the excavator.

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