Movable cone type crushing and screening station with three layers of screening systems

Abstract

The utility model discloses a movable conical crushing and screening station with a three-layer screening system, which relates to the technical field of engineering machinery and comprises a main frame, a feeding mechanism, a conical crushing main machine, a screening system, an engine assembly, an electrical system assembly, a hydraulic system and a lubricating system. The cavity type of the crushing main machine is optimized, the design of the high-strength wear-resistant lining plate is adopted, and the whole machine can simultaneously discharge three types of finished products through crushing and screening. Meanwhile, the crushing and screening device is not limited to mine stone processing and can also be applied to other crushing and screening effects, and stone is conveyed out through different conveyors, so that unnecessary equipment investment can be greatly reduced, the whole crushing and screening operation is more compact, and the whole crushing and screening operation is more convenient and faster; the problems that when materials with three particle sizes need to be processed, equipment distribution is loose and not integrated, and unqualified semi-finished products cannot be efficiently treated are solved, and maintenance cost increase, labor cost increase and energy waste caused by machine increase are relatively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a mobile cone crushing and screening station with a three-layer screening system. Background Art

[0002] In the application of fixed station mining of sand and gravel aggregates in mines, when high requirements are made on the particle shape of the crushed sand and gravel aggregates, fixed cone crushing stations are usually used on site as secondary crushing or terminal crushing. The crushed sand and gravel aggregates need to be transported and screened at the same time. Therefore, the equipment involved in the sand and gravel aggregates in mines is trivial and scattered, and the overall transfer and installation are relatively complicated and cumbersome. At the same time, the infrastructure cost is large, the maintenance cost is also high, and the discharge efficiency is low. If it is applied to occasions that require multi-stage crushing and more types of crushers need to be configured, the disadvantages of inconvenience in movement are more obvious, and the ore transportation distance is long and difficult to adjust. Therefore, some parts of the fixed cone crushing station are integrated on a frame, and a mobile mechanism is set at the bottom for movement.

[0003] However, the above-mentioned mobile crushing station cannot realize screening and material return when the user has higher requirements on particle shape, and performs secondary crushing, resulting in poor particle shape and uneven size of the output stone in the occasions with high requirements on particle shape. The quarry has to configure another screening host, in which the large materials or stones that do not meet the requirements are transported to the feed hopper of the crushing station or other crushers through loaders for secondary crushing and shaping, which increases energy consumption and maintenance costs. Even if no reshaping is required, when the construction department needs to classify and output products according to particle size, especially when three types of particle sizes are required, it is impossible to screen the output materials according to the particle size. In this way, the quarry still needs to configure another screening host with two or three layers of screens to perform screening operations before the final required products can be obtained. However, the current mobile crushing and screening stations with screening functions can only be installed with screening hosts with one or two layers of screens due to the limitations of the overall structure, and the screening effect is not good, which wastes resources too much. Utility Model Content

[0004] The purpose of the utility model is to provide a mobile cone crushing and screening station with a three-layer screening system to solve the problems raised by the above-mentioned background technology that the secondary crushing of unqualified materials on the market is relatively cumbersome, and at the same time, an external screening host is required when screening materials of three particle sizes.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile cone crushing and screening station with a three-layer screening system, comprising:

[0006] A main frame, wherein a walking mechanism for movement is provided at the bottom of the main frame;

[0007] A feeding mechanism, the feeding mechanism is installed on the main frame and is used for feeding raw materials;

[0008] A cone crushing host, wherein the cone crushing host is mounted on the main frame, and the outlet of the feeding mechanism is connected to the inlet of the cone crushing host;

[0009] A screening system, wherein the inlet of the screening system is connected to the outlet of the cone crusher mainframe, and a folding mechanism is provided on the screening system, through which the screening system is connected to the mainframe; the screening system is provided with four groups of discharge ports for respectively discharging four kinds of granular materials with different specifications, wherein one group of discharge ports is a return mechanism and the outlet is connected to the inlet of the feed mechanism for returning the semi-finished product to the secondary crushing;

[0010] An engine assembly, the engine assembly is installed on the main frame on one side of the cone crusher main machine, and is used to provide power for the whole machine;

[0011] An electrical system assembly, which is installed on the main frame and is used to provide power to the entire machine's electrical components;

[0012] A hydraulic system, wherein the hydraulic system is installed inside the main frame and the oil outlets are respectively connected to the oil inlets of the feed mechanism, the cone crusher mainframe and the screening system;

[0013] A lubrication system is installed inside the main frame, and an oil outlet of the lubrication system is connected to an oil inlet of a lubrication oil circuit of the cone crusher main frame.

[0014] Preferably, the feeding mechanism includes a feeding conveyor, which is hinged to the main frame through a feeding lifting bracket, the other end of the feeding lifting bracket is hinged to a feeding lifting cylinder, and the feeding lifting cylinder is hinged to the main frame. The height of the feeding conveyor close to the cone crusher main frame is adjusted by the feeding lifting cylinder, and a feeding hopper is also installed at the end of the feeding conveyor away from the feeding lifting cylinder.

[0015] Preferably, the screening system comprises a main conveyor with one end hinged to the main frame near the discharge port of the cone crushing main frame, the other end of the main conveyor is close to the feed port of the screening main frame, the screening main frame is connected to the screening frame through a vibration reduction connection, the folding mechanism is installed on the screening frame, and the screening frame is turned around the hinge of the main frame through the folding mechanism;

[0016] Wherein, a coarse material conveyor is arranged at the coarse material discharge port of the screening host, a medium material conveyor is arranged at the medium material discharge port of the screening host, and a screening conveyor is arranged at the fine material discharge port of the screening host;

[0017] The intermediate material conveyor, the coarse material conveyor and the screening conveyor are all hinged to the screening frame.

[0018] Preferably, the screening system further comprises a supporting mechanism, which comprises a supporting cylinder hinged to one end of the screening frame close to the main frame and a screening leg hinged to the other end of the screening frame.

[0019] Preferably, the return mechanism includes a transfer conveyor installed at the semi-finished product discharge port of the screening main machine, the other end of the transfer conveyor is connected to the return conveyor, the end of the return conveyor is located on the feeding conveyor, and the return conveyor is installed on the main frame by adjusting the supporting structure.

[0020] Preferably, the adjustable support structure includes a transverse support of the main frame near the return conveyor, and the return conveyor is hinged to the main frame through the transverse support. An adjusting cylinder is hinged near the other end of the return conveyor, and the other end of the adjusting cylinder is hinged to the main frame. The return conveyor can be made to perform circular motion around the transverse support hinge by adjusting the adjusting cylinder. An inclined support is also installed between the return conveyor and the main frame as support.

[0021] Preferably, the folding mechanism includes a connecting pin for hingedly connecting the main frame to the screening frame and a pull rod for pulling and adjusting the screening frame, the pull rod is hinged to the main frame and the screening frame through the pulling pin, a pulling cylinder is also installed between the main frame and the screening frame, the screening frame is driven to perform circular motion around the hinge axis of the connecting pin by the extension and retraction of the pulling cylinder, and a limit pin for limiting the circular motion of the screening frame is also installed between the main frame and the screening frame near the connecting pin.

[0022] Preferably, the folding mechanism also includes a folding cylinder for folding the intermediate material conveyor, the coarse material conveyor and / or the screening conveyor, the intermediate material conveyor, the coarse material conveyor and / or the screening conveyor are hinged to the folding cylinder, and the other end of the folding cylinder is hinged to the screening frame.

[0023] Preferably, the screening host is connected to the screening frame via a spring.

[0024] Preferably, the feeding conveyor is also equipped with an electromagnetic iron remover for removing metal objects in the raw materials.

[0025] Preferably, the cone crusher mainframe and / or the electrical system assembly are connected to the mainframe via a shock absorber.

[0026] Preferably, the walking mechanism is a walking crawler, which is connected by welding a crawler beam to the bottom of the main frame.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] The utility model adopts a cone crusher main unit, the cavity of the crusher main unit is optimized and a high-strength wear-resistant lining plate is used. The whole machine can produce three finished materials at the same time through crushing and screening. Energy saving, green and environmental protection, and not limited to stone processing in mines, can also be applied to other crushing and screening functions, reducing the waste of resources, and transporting them through different conveyors, which can greatly reduce unnecessary equipment investment, making the crushing and screening operation more compact and more convenient to move as a whole, solving the problems of loose and non-integrated equipment distribution and unqualified semi-finished materials that cannot be efficiently processed when processing materials of three particle sizes in the prior art, and relatively reducing the increase in maintenance costs, labor costs and energy waste caused by adding machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a mobile cone crushing and screening stand with a three-layer screening system according to the utility model;

[0030] Figure 2 This is a schematic diagram of the overall structure of a mobile cone crushing and screening station with a three-layer screening system according to the utility model;

[0031] Figure 3 This is a schematic diagram of the screening system structure of a mobile cone crushing and screening station containing a three-layer screening system of the utility model;

[0032] Figure 4 The utility model is a schematic diagram of the structure of the return mechanism of a mobile cone crushing and screening station with a three-layer screening system.

[0033] In the figure: 1. Main frame; 2. Feed hopper; 3. Feeding conveyor; 4. Cone crushing mainframe; 5. Engine assembly; 6. Main conveyor; 7. Screening mainframe; 8. Transfer conveyor; 9. Intermediate material conveyor; 10. Coarse material conveyor; 11. Screening conveyor; 12. Returning material conveyor; 13. Electrical system assembly; 14. Electromagnetic iron remover; 15. Walking track; 16. Feeding lifting cylinder; 17. Feeding lifting bracket; 18. Supporting cylinder; 19. Screening legs; 20. Connecting pin; 21. Pulling pin; 22. Pulling cylinder; 23. Pull rod; 24. Lubrication system; 25. Hydraulic system; 26. Screening frame; 27. Folding cylinder; 28. Lateral support; 29. ​​Adjusting cylinder; 30. Oblique support; 31. Limiting pin. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Example

[0036] See also Figure 1-Figure 4 , a mobile cone crushing and screening station with a three-layer screening system, combined with Figure 1 and Figure 2 As shown, it is composed of a main frame 1, a feeding mechanism, a cone crusher mainframe 4, a screening system, an engine assembly 5, an electrical system assembly 13, a lubrication system 24 and a hydraulic system 25;

[0037] The bottom of the main frame 1 is welded with a crawler beam to install a walking crawler 15 for the movement of the whole machine.

[0038] The feeding mechanism is installed on the main frame 1 for feeding the raw materials;

[0039] In a specific implementation, the feed conveyor 3 of the feeding mechanism is hinged to the main frame 1 through a feed lifting bracket 17, the other end of the feed lifting bracket 17 is hinged to a feed lifting cylinder 16, and the feed lifting cylinder 16 is hinged to the main frame 1. The height of the feed conveyor 3 close to the cone crusher main frame 4 is adjusted by the feed lifting cylinder 16, and the feed hopper 2 is installed at the end of the feed conveyor 3 away from the feed lifting cylinder 16. An electromagnetic iron remover 14 is also fixedly installed on the feed conveyor 3 by bolts to remove metal objects in the raw materials.

[0040] The cone crusher mainframe 4 is installed below the right discharge port of the feed conveyor 3 and is fixed to the mainframe 1 through a shock absorber;

[0041] One end of the main conveyor 6 of the screening system is hinged on the main frame 1 near the discharge port of the cone crushing host 4, and the other end is close to the feed port of the screening host 7. The screening host 7 is connected to the screening frame 26 through a spring, and the folding mechanism is installed on the screening frame 26, and the screening frame 26 is flipped around the hinge of the main frame 1 through the folding mechanism; the bottom of the screening frame 26 near one end of the main frame 1 is hinged to the support cylinder 18, and the other end of the screening frame 26 is hinged to the screening leg 19, which is used to support the screening system after the screening system is unfolded.

[0042] In the specific implementation, the folding mechanism hinges the main frame 1 and the screening frame 26 through the connecting pin 20, and the pull rod 23 pulls the end of the screening frame 26 away from the connecting pin 20 to make the screening frame 26 tilt. The pull rod 23 is hinged to the main frame 1 and the screening frame 26 through the pulling pin 21. A pulling cylinder 22 is also installed between the main frame 1 and the screening frame 26. The screening frame 26 is driven to make a circular motion around the hinge axis of the connecting pin 20 by the extension and contraction of the pulling cylinder 22. A limit pin 31 is also installed between the main frame 1 and the screening frame 26 near the connecting pin 20 for limiting the circular motion of the screening frame 26.

[0043] like Figure 3 As shown, the folding mechanism also includes a folding cylinder 27 for folding the intermediate material conveyor 9, the coarse material conveyor 10 and / or the screening conveyor 11. The intermediate material conveyor 9, the coarse material conveyor 10 and / or the screening conveyor 11 are hinged to the folding cylinder 27, and the other end of the folding cylinder 27 is hinged to the screening frame 26.

[0044] The screening main machine 7 of the screening system is provided with four groups of discharge ports to discharge four different specifications of granular materials respectively, one of which is a return mechanism and the outlet is connected to the inlet of the feed mechanism to return the semi-finished product to the secondary crushing;

[0045] In specific implementation, Figure 4 As shown, the transfer conveyor 8 of the return mechanism is installed at the semi-finished product discharge port of the screening main machine 7, and the other end of the transfer conveyor 8 is connected to the return conveyor 12. The end of the return conveyor 12 is located on the feeding conveyor 3. The return conveyor 12 is hinged to the main frame 1 through a transverse support 28. The return conveyor 12 is hinged with an adjusting cylinder 29 near the other end, and the other end of the adjusting cylinder 29 is hinged to the main frame 1. The return conveyor 12 is made to perform a circular motion around the hinge point of the transverse support 28 by adjusting the adjusting cylinder 29. An inclined support 30 is also installed between the return conveyor 12 and the main frame 1 as a support.

[0046] The other three output ports are: a coarse material conveyor 10 is provided at the coarse material outlet of the screening main machine 7 for transporting the coarse material after screening, a medium material conveyor 9 is provided at the medium material outlet of the screening main machine 7 for transporting the medium material after screening, and a screening conveyor 11 is provided at the fine material outlet of the screening main machine 7 for transporting the fine material after screening; the medium material conveyor 9, the coarse material conveyor 10 and the screening conveyor 11 are all hinged to the screening frame 26.

[0047] The engine assembly 5 is installed on the main frame 1 on the right side of the cone crusher main machine 4 to provide power for the whole machine;

[0048] The electrical system assembly 13 is mounted on the main frame 1 below the engine assembly 5 through a shock absorber, and is used to provide power to the entire machine's electrical components;

[0049] The hydraulic system 25 is installed inside the main frame 1 and the oil outlet is connected to the oil inlets of the feed mechanism, the cone crusher mainframe 4 and the screening system components respectively;

[0050] The lubrication system 24 is installed inside the main frame 1, and the oil outlet of the lubrication system 24 is connected to the oil inlet of the lubrication oil circuit of the cone crusher main frame 4.

[0051] In this embodiment, the layout and installation of the electrical system assembly 13, the hydraulic system 25 and the lubrication system 24 in the device can be selected and set by those skilled in the art according to actual working conditions, and no detailed description is given here.

[0052] It should be noted that:

[0053] When the mobile cone crushing and screening station with a three-layer screening system is in operation: sand and gravel aggregates or ores are fed into the feed hopper 2 by the upper-level crushing equipment or excavator, and are transported to the cone crushing host 4 through the feeding conveyor 3, which is not limited to the above-mentioned raw materials. In this process, the metal substances in the raw materials are sucked out by the electromagnetic iron remover 14 to prevent unnecessary damage to the cone crushing host 4. Then, the raw materials after impurities are crushed by the cone crushing host 4, and the discharge port of the cone crushing host 4 discharges the crushed raw materials to the main conveyor 6 and transports them to the screening host 7 for screening. Among them, the particle shape requirements of the screen are selected and set by technicians in this field according to the actual particle shape requirements, and will not be described in detail here.

[0054] The screening host 7 screens the crushed raw materials into four different specifications: semi-finished materials, coarse materials, medium materials and fine materials. The semi-finished materials are returned to the feeding conveyor 3 for secondary crushing through the transfer conveyor 8 and the return conveyor 12, while the coarse materials, medium materials and fine materials are transported from the medium material conveyor 9, the coarse material conveyor 10 and the screening conveyor 11 respectively, thus completing the entire crushing, screening, semi-finished product return and transportation operations.

[0055] It should be noted that:

[0056] When it is necessary to disassemble the screening system, the supporting cylinder 18 is retracted, the pulling pin 21 on the pull rod 23 is removed to release the pulling of the pull rod 23, and the limit pin 31 between the main frame 1 and the screening frame 26 is removed. At the same time, the pulling cylinder 22 is extended to make the screening branch legs 19 contact the ground for support, and the connecting pin 20 is disassembled. The pulling cylinder 22 is started to continue to extend so that the screening frame 26 is separated from the main frame 1. After separation, the pulling cylinder 22 is retracted, and the folding cylinder 27 is started to drive the intermediate material conveyor 9, the coarse material conveyor 10 and the screening conveyor 11 to flip and fold around the hinge point, and the quick-connect connectors with the hydraulic system 25 and the electrical system assembly 13 on the screening system are removed. The whole machine moves toward the feed hopper 2 through the walking track 15 to realize the overall separation of the screening system from the main frame. When it is necessary to install the screening system, the technicians in this field can complete the installation by reversing the above process, which will not be described in detail here.

[0057] It should be noted that:

[0058] The cone crusher main unit 4 in this embodiment is made of high-strength wear-resistant material for operation and is not limited to the processing of mining stones. Those skilled in the art can also use it in crushing and screening operations such as urban construction waste recycling.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mobile cone crushing and screening station with a three-layer screening system, characterized in that: include: A main frame (1), wherein a walking mechanism for movement is provided at the bottom of the main frame (1); A feeding mechanism, the feeding mechanism being mounted on the main frame (1) and used for feeding raw materials; A cone crushing main machine (4), the cone crushing main machine (4) being mounted on the main frame (1), and the outlet of the feeding mechanism being connected to the inlet of the cone crushing main machine (4); A screening system, wherein the inlet of the screening system is connected to the outlet of the cone crusher mainframe (4), and a folding mechanism is provided on the screening system, through which the screening system is connected to the mainframe (1); the screening system is provided with four groups of discharge ports for respectively discharging four types of granular materials with different specifications, one of which is a return port and the outlet of which is connected to the inlet of the feed mechanism for returning the semi-finished product for secondary crushing; An engine assembly (5), the engine assembly (5) being mounted on the main frame (1) on one side of the cone crusher main machine (4) and being used to provide power for the entire machine; An electrical system assembly (13), the electrical system assembly (13) being mounted on the main frame (1) and used to provide power to the entire machine's electrical components; A hydraulic system (25), the hydraulic system (25) being installed inside the main frame (1) and having an oil outlet respectively connected to the oil inlets of the feed mechanism, the cone crusher mainframe (4) and various components of the screening system; A lubrication system (24), the lubrication system (24) being installed inside the main frame (1), the oil outlet of the lubrication system (24) being connected to the oil inlet of the lubrication oil circuit of the cone crusher main machine (4).

2. The mobile cone crushing and screening station with a three-layer screening system according to claim 1 is characterized in that: The feeding mechanism comprises a feeding conveyor (3), wherein the feeding conveyor (3) is hinged to the main frame (1) via a feeding lifting bracket (17), the other end of the feeding lifting bracket (17) is hinged to a feeding lifting cylinder (16), and the feeding lifting cylinder (16) is hinged to the main frame (1), and the height of the feeding conveyor (3) close to the cone crusher main frame (4) is adjusted by the feeding lifting cylinder (16), and a feeding hopper (2) is also installed at the end of the feeding conveyor (3) away from the feeding lifting cylinder (16).

3. The mobile cone crushing and screening station with a three-layer screening system according to claim 2 is characterized in that: The screening system comprises a main conveyor (6) having one end hinged to the main frame (1) near the discharge port of the cone crushing main frame (4), the other end of the main conveyor (6) being near the feed port of the screening main frame (7), the screening main frame (7) being connected to the screening frame (26) via a vibration-damping connection, the folding mechanism being mounted on the screening frame (26), and the screening frame (26) being turned around the hinge of the main frame (1) via the folding mechanism; Wherein, a coarse material conveyor (10) is provided at the coarse material discharge port of the screening main machine (7), a medium material conveyor (9) is provided at the medium material discharge port of the screening main machine (7), and a screening conveyor (11) is provided at the fine material discharge port of the screening main machine (7); The intermediate material conveyor (9), the coarse material conveyor (10) and the screening conveyor (11) are all hinged to the screening frame (26).

4. The mobile cone crushing and screening station with a three-layer screening system according to claim 3 is characterized in that: The screening system further comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting cylinder (18) hinged to one end of the screening frame (26) close to the main frame (1) and a screening leg (19) hinged to the other end of the screening frame (26).

5. The mobile cone crushing and screening station with a three-layer screening system according to claim 4 is characterized in that: The material return mechanism comprises a transfer conveyor (8) installed at the semi-finished product discharge port of the screening mainframe (7), the other end of the transfer conveyor (8) is connected to a material return conveyor (12), the end of the material return conveyor (12) is located on the feeding conveyor (3), and the material return conveyor (12) is installed on the mainframe (1) by adjusting the supporting structure.

6. The mobile cone crushing and screening station with a three-layer screening system according to claim 5 is characterized in that: The adjustable support structure comprises a transverse support (28) of the main frame (1) near the return material conveyor (12), and the return material conveyor (12) is hinged to the main frame (1) through the transverse support (28). An adjustable oil cylinder (29) is hinged near the other end of the return material conveyor (12), and the other end of the adjustable oil cylinder (29) is hinged to the main frame (1). By adjusting the adjustable oil cylinder (29), the return material conveyor (12) is made to perform circular motion around the hinge point of the transverse support (28). An inclined support (30) is also installed between the return material conveyor (12) and the main frame (1) as a support.

7. The mobile cone crushing and screening station with a three-layer screening system according to claim 6 is characterized in that: The folding mechanism comprises a connecting pin (20) for hingedly connecting the main frame (1) to the screening frame (26) and a pull rod (23) for pulling and adjusting the screening frame (26); the pull rod (23) is hingedly connected to the main frame (1) and the screening frame (26) via a pulling pin (21); a pulling cylinder (22) is installed between the main frame (1) and the screening frame (26); the screening frame (26) is driven to perform circular motion around the hinge axis of the connecting pin (20) by the extension and retraction of the pulling cylinder (22); and a limiting pin (31) is installed between the main frame (1) and the screening frame (26) near the connecting pin (20) for limiting the screening frame (26) to perform circular motion.

8. The mobile cone crushing and screening station with a three-layer screening system according to claim 7 is characterized in that: The folding mechanism further comprises a folding cylinder (27) for folding the intermediate material conveyor (9), the coarse material conveyor (10) and / or the screening conveyor (11); the intermediate material conveyor (9), the coarse material conveyor (10) and / or the screening conveyor (11) are hinged to the folding cylinder (27), and the other end of the folding cylinder (27) is hinged to the screening frame (26).

9. The mobile cone crushing and screening station with a three-layer screening system according to claim 8, characterized in that: The screening host (7) is connected to the screening frame (26) via a spring.

10. The mobile cone crushing and screening station with a three-layer screening system according to any one of claims 2 to 9, characterized in that: The feed conveyor (3) is also equipped with an electromagnetic iron remover (14) for removing metal objects from the raw materials.

11. The mobile cone crushing and screening station with a three-layer screening system according to claim 10, characterized in that: The cone crusher mainframe (4) and / or the electrical system assembly (13) are connected to the mainframe (1) via a shock absorber.

12. The mobile cone crushing and screening station with three-layer screening system according to claim 11, characterized in that: The walking mechanism is a walking crawler (15) which is connected by welding a crawler beam to the bottom of the main frame (1).

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