Tiltable movable grizzly structure

Abstract

The utility model discloses a tiltable movable grizzly structure, which comprises a barrel support frame, a plurality of grizzly screens, a plurality of grizzly screens, a plurality of grizzly screens, a plurality of grizzly screens and a plurality of grizzly screens, the multiple supporting columns are fixedly connected to the supporting frame, and the multiple supporting columns are used for supporting the supporting frame to form a material storage space; the grizzly frame is rotationally connected to the supporting frame, and the grizzly frame is provided with a first position and a second position; when the grizzly frame is located at the first position, the grizzly frame covers the blanking channel; when the grizzly frame is located at the second position, an angle is formed between the grizzly frame and the supporting frame; and the driving mechanism is connected to the grizzly frame and the supporting frame, and the driving mechanism is used for driving the grizzly frame to move from the first position to the second position or from the second position to the first position. The problems that in the prior art, impact force is large during feeding of a fixed and obliquely-placed grizzly screen, a supporting structure and a screen surface of the grizzly screen are both damaged, and the feeding amount cannot be too large are solved.

Description

Technical Field

[0001] The utility model relates to a tiltable moving grid screen structure and belongs to the technical field of stone screening devices. Background Art

[0002] The grating screen is often used for the preliminary screening of ore in the stone plant. It is used to screen out the large pieces of material in advance for separate processing, and the screened materials enter the next level of crushing equipment.

[0003] Commonly used grid screens are mostly fixed and tilted, so that small pieces of material can pass through the screen while large pieces of material can roll directly off the screen surface. However, the disadvantages of fixed and tilted grid screens are: the impact force is large when loading, which damages the support structure and screen surface of the screen, and the loading amount cannot be too large.

[0004] Therefore, the inventor proposes a tiltable moving grid screen structure to solve the above problems. Summary of the invention

[0005] The utility model aims to provide a tiltable movable grid screen structure to solve the problems in the prior art that the fixed tilted grid screen has a large impact force when loading materials, which damages the supporting structure and the screen surface of the screen, and the loading amount cannot be too large.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tiltable moving grid screen structure, comprising:

[0008] A support frame is formed with a material dropping channel, and the material dropping channel runs through the support frame;

[0009] A plurality of support columns are provided, each of which is fixedly connected to the support frame, and the plurality of support columns are used to support the support frame to form a material storage space;

[0010] A grizzly frame is rotatably connected to the support frame, and the grizzly frame has a first position and a second position;

[0011] When the grid screen frame is in the first position, the grid screen frame covers the material dropping channel;

[0012] When the grid screen frame is in the second position, the grid screen frame and the support frame are arranged at an angle;

[0013] A driving mechanism is connected to the grid screen frame and the supporting frame, and the driving mechanism is used to drive the grid screen frame from the first position to the second position or from the second position to the first position.

[0014] As a preferred example, the angle is 60 degrees.

[0015] As a preferred example, the driving mechanism is an electro-hydraulic push rod, which includes a piston cylinder and a piston rod, and the piston rod is slidably connected to the piston cylinder.

[0016] As a preferred example, the piston cylinder is hinged to the support frame, and the free end of the piston rod is hinged to the grid screen frame.

[0017] As a preferred example, the electro-hydraulic push rods are arranged in two groups, and the two groups of electro-hydraulic push rods are symmetrically arranged.

[0018] As a preferred example, it also includes a plurality of groups of bearing mounting seats, which are fixedly connected to the support frame, and a rotating shaft is installed on each group of the bearing mounting seats, and the rotating shaft is fixedly connected to the grid screen frame.

[0019] As a preferred example, a limit hole is provided on the rotating shaft, a limit pin is installed on the limit hole, and the limit pin is used to prevent the rotating shaft from moving.

[0020] As a preferred example, an oiling nozzle is provided on the bearing mounting seat.

[0021] As a preferred example, the grid screen frame is equipped with a vibration motor.

[0022] The beneficial effects of the utility model are:

[0023] During the material receiving and screening stage, the utility model has the grid screen frame in the first position, the screen surface is horizontal, and the ore is dumped onto the screen surface by a shovel truck. Small pieces of material quickly pass through the screen under the action of the vibration motor, and quickly fall into the storage space from the material dropping channel, while large pieces of material remain on the screen surface. During the material removal stage, after the material receiving and screening is completed, the electro-hydraulic push rod is turned on, and the grid screen frame is lifted upward with the rotating axis as the center under the action of the electro-hydraulic push rod, and finally reaches the second position. At this time, the grid screen frame is in the second position, the screen surface is tilted, and the inclination angle is 60°. At this time, large pieces of material will roll off the screen surface, thereby clearing the screen surface. The above process is continued to be repeated to achieve continuous operation. Thereby achieving the beneficial effects of reducing the impact force when feeding the grid screen and improving the efficiency of the grid screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 3 This is a schematic diagram of the structure when the grid screen frame of the utility model is located in the first position;

[0027] Figure 4It is a structural schematic diagram of the utility model when the grid screen frame is located in the second position.

[0028] In the figure: support frame 1, support column 2, grid screen frame 3, grid screen 4, pin shaft mounting seat 5, piston cylinder 6, piston rod 7, hose 8, electro-hydraulic control mechanism 9, bearing mounting seat 10, oiling nozzle 11, rotating shaft 12, limit pin 13, vibration motor 14, connecting arm 15. Implementation

[0029] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific illustrations.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the utility model. In order to simplify the disclosure of the embodiments of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the embodiments of the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the utility model provide examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0033] like Figure 1-Figure 4As shown, a tiltable moving grid screen structure comprises: a support frame 1, a support column 2, a grid screen frame 3, and a driving mechanism. The detailed description is as follows:

[0034] The support frame 1 is a square frame and is formed with a material dropping channel, and the material dropping channel runs through the support frame 1; four support columns 2 are provided, and the four support columns 2 are respectively fixedly connected to the four corners of the support frame 1, and the four support columns 2 are used to support the support frame 1 and form a storage space; the grid screen frame 3 is rotatably connected to the support frame 1, and a grid screen 4 is installed on the grid screen frame 3, and the grid screen frame 3 has a first position and a second position; when the grid screen frame 3 is in the first position, the grid screen frame 3 covers the material dropping channel, and when the grid screen frame 3 is in the second position, the grid screen frame 3 is set at an angle of 45 to 90 degrees with the support frame 1, and the angle is preferably 60 degrees. A vibration motor 14 is installed on the side wall of the grid screen frame 3. When the grid screen frame 3 is in the first position, the vibration motor 14 can quickly and effectively make the target material on the screen surface of the grid screen frame 3 pass through the grid screen 4 and fall into the storage space from the material dropping channel; when the grid screen frame 3 is in the second position, the vibration motor 14 can quickly separate the target material that fails to pass through the grid screen 4 from the screen surface of the grid screen frame 3.

[0035] The driving mechanism is installed between the grid screen frame 3 and the supporting frame 1, and the driving mechanism is used to drive the grid screen frame 3 from the first position to the second position or from the second position to the first position.

[0036] The driving mechanism described in this embodiment can be a driving mechanism such as a cylinder or an electro-hydraulic push rod. This article takes a split electro-hydraulic push rod as an example. The electro-hydraulic push rod includes a piston cylinder 6 and a piston rod 7, and the piston rod 7 is slidably connected to the piston cylinder 6. Two protrusions are symmetrically arranged on the piston cylinder 6. Through the two symmetrical protrusions arranged on the piston cylinder 6, the piston cylinder 6 is hinged to the side of the support frame 1, and the free end of the piston rod 7 is hinged to the pin of the pin mounting seat 5 installed on the side wall of the grid screen frame 3. The piston cylinder 6 is connected to the electro-hydraulic control mechanism 9 through a hose 8. In order to improve the stability of the grid screen 4 structure, the electro-hydraulic push rod is arranged in two groups, and the two groups of the electro-hydraulic push rods are symmetrically arranged.

[0037] In order to further improve the smoothness and service life of the connection between the support frame 1 and the grid screen frame 3, multiple groups of bearing mounting seats 10 are installed on the support frame 1, and the multiple groups of bearing mounting seats 10 are fixedly connected to one end surface of the support frame 1 at equal intervals, and each group of the bearing mounting seats 10 is installed with a rotating shaft 12, and the rotating shaft 12 is fixedly connected to the connecting arm 15 of the grid screen frame 3. The bearing mounting seat 10 is provided with an oiling nozzle 11, through which lubricating oil can be injected into the bearing mounting seat 10, reducing the friction between the rotating shaft 12 and the bearing mounting seat 10, thereby improving the service life of the rotating shaft 12.

[0038] As a further preferred example, in order to prevent the rotating shaft 12 from moving along the axial direction of the rotating shaft 12 , a limiting hole is provided on the rotating shaft 12 , and a limiting pin 13 is installed on the limiting hole.

[0039] Principle: 1) Material receiving and screening stage. At this time, the grid screen frame 3 is in the first position, the screen surface is horizontal, and the ore is dumped onto the screen surface by a shovel. Small pieces of material quickly pass through the screen under the action of the vibration motor 14, and quickly fall into the storage space from the material drop channel, while large pieces of material remain on the screen surface.

[0040] 2) Material removal stage. After the material is screened, the electro-hydraulic push rod is turned on, and the grid screen frame 3 is lifted upward with the rotating shaft 12 as the center under the action of the electro-hydraulic push rod, and finally reaches the second position. At this time, the grid screen frame 3 is in the second position, the screen surface is tilted, and the inclination angle is 60°. At this time, large pieces of material will roll off the screen surface, thereby clearing the screen surface.

[0041] 3) Continue to repeat the above two processes to achieve continuous operation.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tiltable moving grid screen structure, characterized in that: include: A support frame is formed with a material dropping channel, and the material dropping channel runs through the support frame; A plurality of support columns are provided, each of which is fixedly connected to the support frame and is used to support the support frame to form a material storage space; A grizzly frame is rotatably connected to the support frame, and the grizzly frame has a first position and a second position; When the grid screen frame is in the first position, the grid screen frame covers the material dropping channel; When the grid screen frame is in the second position, the grid screen frame and the support frame are arranged at an angle of 60 degrees; A driving mechanism is connected to the grid screen frame and the supporting frame, and the driving mechanism is used to drive the grid screen frame from the first position to the second position or from the second position to the first position.

2. The tiltable moving grid structure according to claim 1, characterized in that: The driving mechanism is an electro-hydraulic push rod, which includes a piston cylinder and a piston rod, and the piston rod is slidably connected to the piston cylinder.

3. The tiltable moving grid structure according to claim 2, characterized in that: The piston cylinder is hinged to the support frame, and the free end of the piston rod is hinged to the grid screen frame.

4. The tiltable moving grid structure according to claim 3, characterized in that: The electro-hydraulic push rods are arranged in two groups, and the two groups of electro-hydraulic push rods are arranged symmetrically.

5. The tiltable moving grid structure according to claim 4, characterized in that: It also includes a plurality of groups of bearing mounting seats, which are fixedly connected to the support frame, and a rotating shaft is installed on each group of the bearing mounting seats, and the rotating shaft is fixedly connected to the grid screen frame.

6. The tiltable moving grid structure according to claim 5, characterized in that: A limit hole is arranged on the rotating shaft, and a limit pin is installed on the limit hole, and the limit pin is used to prevent the rotating shaft from moving.

7. The tiltable moving grid structure according to claim 6, characterized in that: The bearing mounting seat is provided with an oil injection nozzle.

8. A tiltable moving grid structure according to any one of claims 1 to 7, characterized in that: The grid screen frame is equipped with a vibration motor.

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