Crawler belt moving type screening station with adjustable screening angle and adjusting method of crawler belt moving type screening station

Abstract

The invention belongs to the technical field of screening equipment, and relates to a crawler belt moving type screening station with an adjustable screening angle and an adjusting method thereof.The crawler belt moving type screening station comprises a rack, a feeding conveyor, a first adjusting structure, a second adjusting structure and a third adjusting structure, a screen frame is hinged to the rack, and the screen frame is used for installing a vibrating screen; the feeding conveyor comprises a feeding conveyor front section arranged above the vibrating screen and a feeding conveyor rear section movably connected with the feeding conveyor front section, the first adjusting structure is arranged between the screen frame and the machine frame, and the screen frame can be subjected to vertical angle adjustment along the hinge point of the screen frame and the machine frame under the action of the first adjusting structure. The second adjusting structure is used for adjusting a gap between the front section of the feeding conveyor and the vibrating screen, and the third adjusting structure is used for being matched with the first adjusting structure and / or the second adjusting structure to adjust the angle of the front section of the feeding conveyor. The device has the advantages of being simple in structure, convenient to operate, wide in application scene, high in equipment working efficiency, good in economical efficiency and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of screening equipment, and in particular relates to a crawler mobile screening station with adjustable screening angle and an adjustment method thereof. Background Art

[0002] The crawler mobile screening station consists of a hopper, a feeding conveyor, a feeding conveyor head support rod, a vibrating screen, a top finished product conveyor, a middle finished product conveyor, a bottom finished product conveyor, a finished product conveyor under the screen, a crawler frame, a screen frame, and a screen frame support rod.

[0003] When the crawler mobile screening station is working, it is necessary to determine the appropriate screening angle according to the nature of the screened material and the size of the screen used. In order to ensure that the screening rate meets the requirements for aggregate use, materials that are not easy to separate (such as materials with high mud and water content) require more time to be screened on the screening machine compared to materials that are easy to separate (such as dry sand or loose gravel).

[0004] In addition, the type and size of the screen will also affect the selection of the screening angle. Generally, square mesh screens require a smaller screening angle than slot screens, and harp-type metal mesh screens require a very large angle. Choosing the correct screening angle can greatly increase production.

[0005] However, the screening angles of the existing mobile screening stations on the market are not adjustable, which greatly limits the main performance of the mobile screening stations, such as the processing capacity. Summary of the invention

[0006] The purpose of the present invention is to solve the defects and shortcomings in the prior art and to design a crawler mobile screening station with adjustable screening angle and an adjustment method thereof.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a crawler mobile screening station with adjustable screening angle, comprising:

[0008] A frame, on which a screen frame is hinged, and the screen frame is used to install a vibrating screen;

[0009] A feeding conveyor, the feeding conveyor comprising a front section of the feeding conveyor arranged above the vibrating screen, and a rear section of the feeding conveyor movably connected to the front section of the feeding conveyor;

[0010] A first adjustment structure, wherein the first adjustment structure is arranged between the screen frame and the frame, and the screen frame can be adjusted up and down along the hinge point between the screen frame and the frame under the action of the first adjustment structure;

[0011] A second adjustment structure, the second adjustment structure is arranged between the screen frame and the front section of the feeding conveyor, and is used to adjust the gap between the front section of the feeding conveyor and the vibrating screen;

[0012] The third adjustment structure is arranged between the front section of the feeding conveyor and the rear section of the feeding conveyor, and is used to cooperate with the first adjustment structure and / or the second adjustment structure to adjust the angle of the front section of the feeding conveyor.

[0013] Preferably, the first adjustment structure includes an oil cylinder and a limiting device, and the limiting device achieves limiting cooperation with the porous tube on the oil cylinder through a first positioning pin.

[0014] Preferably, the second adjustment structure includes an adjusting oil cylinder, an adjusting sleeve and a limiting member arranged on the adjusting sleeve.

[0015] Preferably, the adjusting sleeve has a plurality of adjusting holes distributed along its telescopic direction, and the limiting member is a second positioning pin matched with the adjusting hole.

[0016] Preferably, the third adjustment structure includes a first adjustment plate and a second adjustment plate respectively connecting the front section of the feeding conveyor and the rear section of the feeding conveyor, and the position of the first adjustment plate and the second adjustment plate is limited by a third positioning pin.

[0017] Preferably, the frame is also connected to a traveling system and a power system.

[0018] An adjustment method for the above crawler mobile screening station includes a screening angle adjustment method and a screen mesh angle adjustment method.

[0019] Preferably, the screening angle adjustment method comprises the following steps:

[0020] S1. Check the equipment and remove the third positioning pin;

[0021] S2. Remove the first positioning pin and move the limiting device to a suitable position;

[0022] S3, drive the screen frame through the oil cylinder to drive the vibrating screen and the front section of the feeding conveyor to adjust the angle;

[0023] S4. After completing the angle adjustment, reinstall the third positioning pin.

[0024] Preferably, the screen angle adjustment method comprises the following steps:

[0025] a1. Check the equipment to ensure that the third positioning pin is installed stably;

[0026] a2. Remove the limiter and the first positioning pin, and move the limiter to a suitable position;

[0027] a3. Use the oil cylinder to drive the vibrating screen to adjust the gap between it and the front section of the feeding conveyor;

[0028] a4. After completing the adjustment, reinstall the limiter and the first positioning pin.

[0029] After adopting the above technical solution, the crawler mobile screening station with adjustable screening angle and the adjustment method thereof provided by the present invention have the following beneficial effects:

[0030] (1) The present invention adopts a hinged design between the screen frame and the frame, and a design of a movable connection between the front section of the feeding conveyor and the rear section of the feeding conveyor, so that the screen frame and the front section of the feeding conveyor can be simultaneously adjusted up and down by the first adjustment structure, that is, the screening angle can be adjusted according to actual needs, the application scenarios are wide, and the equipment has high working efficiency;

[0031] (2) The present invention can adjust the gap between the vibrating screen and the front section of the feeding conveyor through the design of the second adjustment structure, thereby adjusting the screen angle to meet the needs of different products. At the same time, it is easy to replace screens with different apertures or clean the screens, which is more economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a schematic structural diagram of a crawler mobile screening station with adjustable screening angle.

[0033] Among them: frame 1, screen frame 2, vibrating screen 3, feeding conveyor 4, front section 41 of feeding conveyor, rear section 42 of feeding conveyor, first adjusting structure 5, oil cylinder 51, limiting device 52, first positioning pin 53, porous tube 54, second adjusting structure 6, adjusting sleeve 61, limiting member 62, third adjusting structure 7. DETAILED DESCRIPTION

[0034] The present invention is further described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0040] The present invention provides a crawler mobile screening station with adjustable screening angle, such as Figure 1 As shown, it includes a frame 1, a feeding conveyor 4, a first adjustment structure 5, a second adjustment structure 6 and a third adjustment structure 7. A screen frame 2 is hinged on the frame 1, and the screen frame 2 is used to install a vibrating screen 3. The feeding conveyor 4 includes a feeding conveyor front section 41 arranged above the vibrating screen 3, and a feeding conveyor rear section 42 movably connected to the feeding conveyor front section 41.

[0041] The first adjustment structure 5 is arranged between the screen frame 2 and the frame 1. The screen frame 2 can be adjusted up and down along the hinge point between it and the frame 1 under the action of the first adjustment structure 5. Specifically, the first adjustment structure 5 includes a cylinder 51 and a limit device 52. The limit device 52 realizes limit cooperation with the porous tube 54 on the cylinder 51 through a first positioning pin 53.

[0042] The second adjustment structure 6 is arranged between the screen frame 2 and the front section 41 of the feeding conveyor, and is used to adjust the gap between the front section 41 of the feeding conveyor and the vibrating screen 3. Specifically, the second adjustment structure 6 includes an adjusting cylinder, an adjusting sleeve 61 and a limiting member 62 arranged on the adjusting sleeve 61. The adjusting sleeve 61 has a plurality of adjustment holes distributed along its telescopic direction, and the limiting member 62 uses a second positioning pin that matches the adjustment hole.

[0043] The third adjustment structure 7 is arranged between the front section 41 of the feeding conveyor and the rear section 42 of the feeding conveyor, and is used to cooperate with the first adjustment structure 5 and / or the second adjustment structure 6 to adjust the angle of the front section 41 of the feeding conveyor. Specifically, the third adjustment structure 7 includes a first adjustment plate and a second adjustment plate respectively connected to the front section 41 of the feeding conveyor and the rear section 42 of the feeding conveyor, and the position of the first adjustment plate and the second adjustment plate is limited by a third positioning pin. Through the above design, the angles of the feeding conveyor and the screen can be adjusted separately or simultaneously, which can meet different actual needs.

[0044] Furthermore, the frame 1 is also connected to a traveling system and a power system.

[0045] The present invention provides an adjustment method for the above-mentioned crawler mobile screening station with adjustable screening angle, including a screening angle adjustment method and a screen angle adjustment method, which are specifically as follows:

[0046] When the screening angle needs to be adjusted, first check the equipment, then remove the third positioning pin of the third adjustment structure 7, remove the first positioning pin 53 of the first adjustment structure 5, move the limiting device 52 to a suitable position, and drive the screen frame 2 through the oil cylinder 51 to drive the vibrating screen 3 and the front section 41 of the feeding conveyor to adjust the angle together. After completing the angle adjustment, install the third positioning pin and the first positioning pin 53 at the current position.

[0047] When the screen needs to be replaced, first check the equipment to ensure that the third positioning pin is installed and fixed, remove the limiter 62 and the first positioning pin 53, and then move the limiter 52 to a suitable position. Drive the screen frame 2 through the cylinder 51 to drive the vibrating screen 3 to adjust the angle. At this time, the gap between the vibrating screen 3 and the front section 41 of the feeding conveyor will become larger or smaller. After reaching the required position, install the limiter 62 and the first positioning pin 53.

[0048] To sum up, the crawler mobile screening station with adjustable screening angle and the adjustment method thereof provided by the present invention have simple structure and easy operation, and at the same time realize the adjustable functions of screening angle and screen angle. It has the advantages of wide application scenarios, high equipment working efficiency, good economy, etc., has great market value, and deserves wide promotion and application.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crawler mobile screening station with adjustable screening angle, characterized in that: include: A frame (1), a screen frame (2) being hingedly connected to the frame (1), and the screen frame (2) being used for installing a vibrating screen (3); A feeding conveyor (4), the feeding conveyor (4) comprising a feeding conveyor front section (41) arranged above the vibrating screen (3), and a feeding conveyor rear section (42) movably connected to the feeding conveyor front section (41); A first adjustment structure (5), the first adjustment structure (5) being arranged between the screen frame (2) and the frame (1), and the screen frame (2) being capable of being adjusted up and down along a hinge point between the screen frame (2) and the frame (1) under the action of the first adjustment structure (5); A second adjustment structure (6), the second adjustment structure (6) being arranged between the screen frame (2) and the front section (41) of the feeding conveyor, and being used for adjusting the gap between the front section (41) of the feeding conveyor and the vibrating screen (3); The third adjustment structure (7) is arranged between the front section (41) of the feeding conveyor and the rear section (42) of the feeding conveyor, and is used to cooperate with the first adjustment structure (5) and / or the second adjustment structure (6) to adjust the angle of the front section (41) of the feeding conveyor.

2. The crawler mobile screening station with adjustable screening angle according to claim 1, characterized in that: The first adjustment structure (5) comprises an oil cylinder (51) and a limiting device (52), wherein the limiting device (52) achieves limiting cooperation with a porous tube (54) on the oil cylinder (51) through a first positioning pin (53).

3. The crawler mobile screening station with adjustable screening angle according to claim 1, characterized in that: The second adjustment structure (6) comprises an adjustment oil cylinder, an adjustment sleeve (61) and a limiting member (62) arranged on the adjustment sleeve (61).

4. The crawler mobile screening station with adjustable screening angle according to claim 3, characterized in that: The adjusting sleeve (61) has a plurality of adjusting holes distributed along its telescopic direction, and the limiting member (62) is a second positioning pin matched with the adjusting hole.

5. The crawler mobile screening station with adjustable screening angle according to claim 1, characterized in that: The third adjustment structure (7) comprises a first adjustment plate and a second adjustment plate respectively connected to the front section (41) of the feeding conveyor and the rear section (42) of the feeding conveyor, and the position of the first adjustment plate and the second adjustment plate is limited by a third positioning pin.

6. The crawler mobile screening station with adjustable screening angle according to claim 1, characterized in that: The frame (1) is also connected to a walking system and a power system.

7. A method for adjusting a crawler mobile screening station with adjustable screening angle according to any one of claims 1 to 6, characterized in that: The adjustment method includes a screening angle adjustment method and a screen angle adjustment method.

8. The method for adjusting a crawler mobile screening station with adjustable screening angle according to claim 7, characterized in that: The screening angle adjustment method comprises the following steps: S1. Check the equipment and remove the third positioning pin; S2, remove the first positioning pin (53) and move the limiting device (52) to a suitable position; S3, driving the screen frame (2) through the oil cylinder (51) to drive the vibrating screen (3) and the front section of the feeding conveyor (41) to adjust the angle together; S4. After completing the angle adjustment, reinstall the third positioning pin.

9. The method for adjusting a crawler mobile screening station with adjustable screening angle according to claim 7, characterized in that: The screen angle adjustment method comprises the following steps: a1. Check the equipment to ensure that the third positioning pin is installed stably; a2. Remove the limiting member (62) and the first positioning pin (53), and move the limiting device (52) to a suitable position; a3. The oil cylinder (51) drives the screen frame (2) to drive the vibrating screen (3) to adjust the gap between the vibrating screen (3) and the front section (41) of the feeding conveyor; a4. After the adjustment is completed, reinstall the limiter (62) and the first positioning pin (53).

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