Three-rotor fine crusher with adjustable granularity

Abstract

The three-rotor fine crusher comprises a primary crushing assembly and a secondary crushing assembly which are sequentially arranged from top to bottom in the longitudinal direction, the primary crushing assembly crushes material blocks and conveys the crushed material blocks to the secondary crushing assembly, and the secondary crushing assembly comprises rotor bodies which are arranged in pairs at the same horizontal position; the rotating directions of the rotor bodies arranged in pairs are opposite, overturning mechanisms are arranged on the two sides of the rotor bodies arranged in pairs, impact parts matched with the rotor bodies are arranged in the overturning mechanisms, and the impact parts adjust the matching gaps between the impact parts and the rotor bodies through adjusting devices; according to the utility model, a three-rotor fine crushing structure is formed by the rotor body and the primary crushing assembly which are opposite in rotating direction, so that large materials can be crushed, the feeding particle size can be increased, the yield of the crusher can be increased, and the discharging particle size can be adjusted according to actual requirements by adjusting a matching gap; therefore, the problem that the discharging granularity is difficult to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher equipment, and particularly relates to a three-rotor fine crusher with adjustable particle size. Background Art

[0002] The impact crusher is a kind of material processing equipment mainly applied to metallurgy, chemical industry, building materials, hydropower and other industries that often need to relocate operations. The impact crusher uses impact energy to complete material crushing.

[0003] At present, the impact crusher has single-rotor and double-rotor structural forms. The single-rotor structural form of the impact crusher is the earliest and most classic. The crushing of materials is realized through the comprehensive action of forces such as the impact of the plate hammers on the rotor, the rebound of the impact plate, the mutual collision of materials, and the grinding of the sizing plate. The double-rotor crusher is based on the single-rotor crusher and adds a co-rotating rotor, that is, two rotors are used in series.

[0004] In recent years, with the expansion of the scale of the material crushing and processing production line, the impact crusher needs to meet greater production capacity. At present, in domestic and foreign double-rotor fine crushers, the two crushing rotors are divided into upper and lower levels. There are problems such as small crushing output, relatively small feed particle size, easy occurrence of large materials that cannot be crushed, and difficult adjustment of the discharge particle size. Content of the Utility Model

[0005] The purpose of the utility model is to provide a three-rotor fine crusher with adjustable particle size. The device divides the crusher into upper and lower levels. The upper-level primary crushing component crushes large materials to increase the feed particle size. The lower-level secondary crushing component uses rotor bodies and places the two rotor bodies at the same horizontal level. When working, the two rotor bodies rotate in opposite directions, which is equivalent to two impact crushers working simultaneously, increasing the output of the crusher. And each rotor body in the lower level is provided with an adjustment device, and the discharge particle size can be adjusted according to actual needs.

[0006] To achieve the above technical purpose, the utility model is realized through the following technical solutions:

[0007] A three-rotor fine crusher with adjustable particle size includes a primary crushing component and a secondary crushing component arranged successively from top to bottom longitudinally. The primary crushing component crushes the material blocks and transports them to the secondary crushing component;

[0008] Wherein, the secondary crushing component includes rotor bodies arranged in pairs at the same horizontal level. The rotor bodies arranged in pairs rotate in opposite directions, and a flipping mechanism is arranged on both sides of the rotor bodies arranged in pairs. A counterattack part matching the rotor body is arranged in the flipping mechanism, and the matching gap between the counterattack part and the rotor body is adjusted by an adjustment device.

[0009] As a further technical solution of the three-rotor fine crusher, the secondary crushing assembly further includes a fixed frame, the flipping mechanism includes a flipping frame body, and the fixed frame includes an upper frame body and a lower frame body;

[0010] Wherein, an installation platform matching the primary crushing assembly is arranged on the upper part of the upper frame body, the flipping frame body is rotationally connected to the lower frame body through a rotating part, and a hydraulic assembly is also hinged between the flipping frame body and the lower frame body, and the hydraulic assembly rotates the flipping mechanism towards the outside of the rotor body.

[0011] As a further technical solution of the three-rotor fine crusher, a plurality of first observation windows are arranged on the upper frame body.

[0012] As a further technical solution of the three-rotor fine crusher, a plurality of second observation windows are arranged on the flipping frame body.

[0013] As a further technical solution of the three-rotor fine crusher, a positioning assembly is arranged between the counterattack part and the flipping frame body;

[0014] Wherein, the positioning assembly includes a set screw and a positioning adjustment seat, the positioning adjustment seats are arranged in pairs on both sides of the counterattack part, one end of the set screw is threadedly connected to the positioning adjustment seat, and the other end of the set screw passes through the flipping frame body.

[0015] As a further technical solution of the three-rotor fine crusher, the positioning assembly further includes a positioning sleeve and a hanging shaft;

[0016] Wherein, the positioning sleeve is arranged in the middle of the positioning adjustment seat, both ends of the hanging shaft are arranged between the positioning sleeves, and the positioning sleeve and the end of the hanging shaft are locked by an internal hexagon socket head screw.

[0017] As a further technical solution of the three-rotor fine crusher, a plurality of cushion block groups are arranged on both sides of the positioning sleeve, and the end of the set screw abuts against the surface of the cushion block group.

[0018] As a further technical solution of the three-rotor fine crusher, the counterattack part includes a counterattack frame and a counterattack plate, and the counterattack plate is arranged on the counterattack frame and located between the counterattack frame and the rotor body;

[0019] Wherein, a plurality of counterattack plates are provided, and the plurality of counterattack plates are connected to the counterattack frame through a bolt assembly.

[0020] As a further technical solution of the three-rotor fine crusher, the adjusting device includes a screw sleeve and an adjusting screw. One end of the adjusting screw is connected to the counterattack part, and the other end of the adjusting screw passes through the flipping mechanism and is screwed tightly with the screw sleeve.

[0021] As a further technical solution of the three-rotor fine crusher, the matching gap between the counterattack part and the rotor body is 20mm - 86.6mm.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] 1. The present invention provides a three-rotor fine crusher with adjustable particle size, which includes a primary crushing assembly and a secondary crushing assembly arranged vertically from top to bottom. The secondary crushing assembly includes rotor bodies arranged in pairs at the same horizontal position, and the rotor bodies arranged in pairs rotate in opposite directions. The rotor bodies rotating in opposite directions and the primary crushing assembly form a three-rotor fine crushing structure, which can not only crush large materials and increase the feed particle size, but also increase the output of the crusher.

[0024] 2. In the present invention, flipping mechanisms are arranged on both sides of the rotor bodies arranged in pairs. The flipping mechanisms realize the function of rotating the flipping mechanisms outward to the rotor bodies through hydraulic components, and can be cleaned in time when a jamming phenomenon occurs.

[0025] 3. In the present invention, the flipping mechanisms are provided with counterattack parts matching the rotor bodies. The counterattack parts adjust the matching gap between the counterattack parts and the rotor bodies through an adjusting device. By adjusting the matching gap, the discharged particle size can be adjusted according to actual needs, thus solving the problem of difficult adjustment of the discharged particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not limit the embodiments of the present invention. In the drawings:

[0027] Figure 1 is a front view structural schematic diagram of the three-rotor fine crusher provided by the present invention in the open / closed state of the flipping mechanism;

[0028] Figure 2 is a side view structural schematic diagram of the three-rotor fine crusher provided by the present invention;

[0029] Figure 3 is a front view structural schematic diagram of the secondary crushing assembly provided by the present invention;

[0030] Figure 4 is a structural schematic diagram of the fixed frame provided by the present invention;

[0031] Figure 5 Schematic diagram of the flipping mechanism provided by the present utility model;

[0032] Figure 6 Side view structural diagram of the flipping mechanism provided by the present utility model;

[0033] Figure 7 Front view structural diagram of the counterattack frame provided by the present utility model;

[0034] Figure 8 is Figure 7 Cross-sectional structural diagram of the marked A-A in

[0035] Figure 9 is Figure 7 Enlarged structural diagram of the marked I in

[0036] Figure 10 Structural diagram of the counterattack frame when it is in the minimum working position;

[0037] Figure 11 Structural diagram of the counterattack frame when it is in the maximum working position.

[0038] Labels and corresponding component names in the drawings:

[0039] 1 - Primary crushing component;

[0040] 2 - Secondary crushing component, 2.1 - Installation table, 2.2 - First observation window, 2.3 - Upper frame body, 2.4 - Lower frame body, 2.5 - First connection hole, 2.6 - Second connection hole;

[0041] 3 - Flipping mechanism, 3.1 - Flipping frame body, 3.2 - Counterattack part, 3.2.1 - Set screw, 3.2.2 - Positioning and adjusting seat, 3.2.3 - Pad group, 3.2.4 - Positioning sleeve, 3.2.5 - Counterattack frame, 3.2.6 - Counterattack plate, 3.2.7 - Bolt assembly, 3.2.8 - Hanging shaft, 3.2.9 - Cover plate, 3.2.10 - Socket head cap screw, 3.3 - Positioning component, 3.4 - Rotating part, 3.5 - Second observation window;

[0042] 4 - Hydraulic component, 5 - Underframe;

[0043] 6 - Adjusting device, 6.1 - Guard, 6.2 - Nut sleeve, 6.3 - Adjusting screw;

[0044] 7 - Rotor body, 8 - Material block, 9 - Belt assembly, 10 - First driving component, 11 - Second driving component. Detailed implementation manners

[0045] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as limiting the present utility model.

[0046] Embodiment:

[0047] This embodiment provides a three-rotor fine crusher with adjustable particle size. As Figures 1 - 3 and Figure 5 shown, it includes a primary crushing assembly 1 and a secondary crushing assembly 2 arranged on a chassis 5. The primary crushing assembly 1 is a single-tooth roll crusher or other roll crushers. The primary crushing assembly 1 is connected to the output end of a first driving assembly 10 through a belt assembly 9. The secondary crushing assembly 2 is a double-rotor impact crusher or other impact crushers. The secondary crushing assembly 2 is driven by a second driving assembly 11.

[0048] Meanwhile, the primary crushing assembly 1 and the secondary crushing assembly 2 are arranged vertically from top to bottom in sequence. The primary crushing assembly 1 crushes the material block 8 and conveys it to the secondary crushing assembly 2, and the secondary crushing assembly 2 crushes the material block 8 again. Among them, the secondary crushing assembly 2 includes rotor bodies 7 arranged in pairs at the same horizontal level. The rotor bodies 7 arranged in pairs rotate in opposite directions. The rotor bodies 7 rotating in opposite directions and the primary crushing assembly 1 form a three-rotor fine crushing structure, which can increase the output of the crusher while crushing large pieces of materials and increasing the feeding particle size. And flipping mechanisms 3 are arranged on both sides of the rotor bodies 7 arranged in pairs. An impact part 3.2 matching the rotor body 7 is arranged in the flipping mechanism 3. The matching gap between the impact part 3.2 and the rotor body 7 is adjusted by an adjusting device 6.

[0049] Specifically, please refer to as Figures 4 - 6 shown. The secondary crushing assembly 2 further includes a fixed frame. The flipping mechanism 3 includes a flipping frame body 3.1. The fixed frame includes an upper frame body 2.3 and a lower frame body 2.4.

[0050] Among them, an installation table 2.1 matching the primary crushing component 1 is provided at the upper part of the upper frame body 2.3. There are 2 first observation windows 2.2 provided on the upper frame body 2.3 for observing the internal situation. The lower part of the upper frame body 2.3 is connected to the lower frame body 2.4 by bolts. A first connection hole 2.5 for bearing the rotor body 7 is provided at the joint of the lower frame body 2.4 and the upper frame body 2.3. Second connection holes 2.6 are provided on both sides of the lower frame body 2.4. A rotating part 3.4 matching the second connection hole 2.6 is provided on the lower side of the flipping frame body 3.1. There are 2 second observation windows 3.5 provided in the middle of the flipping frame body 3.1 for observing the internal situation. And a hydraulic component 4 is hinged between the flipping frame body 3.1 and the lower frame body 2.4. The hydraulic component 4 rotates the flipping mechanism 3 outward to the rotor body 7, so that when a jamming phenomenon occurs, the device can be opened in time for cleaning.

[0051] In this embodiment, please refer to Figures 5 - 9 As shown, a positioning component 3.3 is provided between the counterattack part 3.2 and the flipping frame body 3.1;

[0052] Specifically, the above-mentioned positioning component 3.3 includes set screws 3.2.1, positioning adjustment seats 3.2.2, positioning sleeves 3.2.4 and hanging shafts 3.2.8. The positioning adjustment seats 3.2.1 are arranged in pairs on both sides of the counterattack part 3.1. The positioning sleeve 3.2.4 is arranged in the middle of the positioning adjustment seat 3.2.2. Both ends of the hanging shaft 3.2.8 are arranged between the positioning sleeves 3.2.2. The positioning sleeve 3.2.2 and the end of the hanging shaft 3.2.8 are locked by hexagon socket head cap screws 3.2.10;

[0053] At the same time, several pad groups 3.2.3 are provided on both sides of the positioning sleeve 3.2.4, and the thickness of the pad groups can be adjusted according to actual needs. The outside of the positioning sleeve 3.2.4 is covered and protected by a cover plate 3.2.9. One end of the above-mentioned set screw 3.2.1 is threadedly connected to the positioning adjustment seat 3.2.2, and the end of the set screw 3.2.1 abuts against the surface of the pad group 3.2.3. The other end of the set screw 3.2.1 passes through the flipping frame body 3.1, and the end of the set screw 3.2.1 passing through the flipping frame body 3.1 synchronously positions and adjusts the counterattack part 3.2 through a nut screwing-in and adjusting device 6.

[0054] Among them, please refer to Figure 8 As shown, the above-mentioned counterattack part 3.2 includes a counterattack frame 3.2.5 and a counterattack plate 3.2.6. The counterattack plate 3.2.6 is arranged on the counterattack frame 3.2.5 and is located between the counterattack frame 3.2.5 and the rotor body 7. A plurality of the counterattack plates 3.2.6 are evenly arranged. The plurality of counterattack plates 3.2.6 are connected to the counterattack frame 3.2.5 by bolt assemblies 3.2.7. In this way, when the counterattack plate 3.2.6 is damaged, it is not necessary to replace all of them, and only the damaged part needs to be replaced.

[0055] In this embodiment, for the specific structure of the adjusting device 6, please refer to Figures 10 - 11 As shown, the adjusting device 6 includes a shield 6.1, a screw sleeve 6.2 and an adjusting screw 6.3. The screw sleeve 6.2 and the adjusting screw 6.3 are both arranged in the shield 6.1. One end of the adjusting screw 6.3 is connected to the counter-attack frame 3.2.5, and the other end of the adjusting screw 6.3 passes through the flipping frame body 3.1 and is screwed tightly with the screw sleeve 6.2. A plurality of nuts are threadedly connected to the outer side of the screw sleeve 6.2. By adjusting the screwing length of the nuts and the screw sleeve 6.2, the matching gap between the counter-attack part 3.2 and the rotor body 7 is adjusted to be between 20 mm and 86.6 mm. In this embodiment, the discharging particle size can be controlled within the range of 3 mm to 70 mm by adjusting the matching gap, thus solving the problem of difficult adjustment of the discharging particle size.

[0056] The above specific implementation manners further elaborate on the purpose, technical solutions and beneficial effects of the present utility model. It should be understood that the above is only the specific implementation manners of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A three-rotor fine crusher with adjustable particle size, characterized in that: It comprises a primary crushing assembly (1) and a secondary crushing assembly (2) which are arranged in sequence from top to bottom in the longitudinal direction, wherein the primary crushing assembly (1) crushes the material block (8) and then transports it to the secondary crushing assembly (2); The secondary crushing assembly (2) comprises rotor bodies (7) arranged in pairs at the same horizontal position, the rotor bodies (7) arranged in pairs have opposite rotation directions, and a turning mechanism (3) is arranged on both sides of the rotor bodies (7) arranged in pairs, and a counterattack part (3.2) matching with the rotor body (7) is arranged in the turning mechanism (3), and the counterattack part (3.2) is used to adjust the matching gap between the counterattack part (3.2) and the rotor body (7) through an adjustment device (6).

2. A three-rotor fine crusher with adjustable particle size according to claim 1, characterized in that: The secondary crushing assembly (2) also includes a fixed frame, the turning mechanism (3) includes a turning frame (3.1), and the fixed frame includes an upper frame (2.3) and a lower frame (2.4); The upper part of the upper frame (2.3) is provided with a mounting platform (2.1) matching the primary crushing assembly (1); the flip frame (3.1) is rotatably connected to the lower frame (2.4) via a rotating part (3.4); and a hydraulic assembly (4) is hinged between the flip frame (3.1) and the lower frame (2.4); the hydraulic assembly (4) causes the flip mechanism (3) to rotate toward the outside of the rotor body (7).

3. A three-rotor fine crusher with adjustable particle size according to claim 2, characterized in that: A plurality of first observation windows (2.2) are provided on the upper frame (2.3).

4. The three-rotor fine crusher with adjustable particle size according to claim 2, characterized in that: The flip frame (3.1) is provided with a plurality of second observation windows (3.5).

5. The three-rotor fine crusher with adjustable particle size according to claim 2, characterized in that: A positioning assembly (3.3) is provided between the counterattack portion (3.2) and the flip frame (3.1); The positioning assembly (3.3) comprises a set screw (3.2.1) and a positioning adjustment seat (3.2.2); the positioning adjustment seats (3.2.2) are arranged in pairs on both sides of the counterattack part (3.2); one end of the set screw (3.2.1) is threadedly connected to the positioning adjustment seat (3.2.2); and the other end of the set screw (3.2.1) passes through the flip frame (3.1).

6. A three-rotor fine crusher with adjustable particle size according to claim 5, characterized in that: The positioning assembly (3.3) also includes a positioning sleeve (3.2.4) and a hanging shaft (3.2.8); The positioning sleeve (3.2.4) is arranged in the middle of the positioning adjustment seat (3.2.2), the two ends of the hanging shaft (3.2.8) are arranged between the positioning sleeves (3.2.4), and the positioning sleeve (3.2.4) and the end of the hanging shaft (3.2.8) are locked by a hexagon socket head screw (3.2.10).

7. A three-rotor fine crusher with adjustable particle size according to claim 6, characterized in that: A plurality of pad groups (3.2.3) are arranged on both sides of the positioning sleeve (3.2.4), and the ends of the set screws (3.2.1) are pressed against the surfaces of the pad groups (3.2.3).

8. The three-rotor fine crusher with adjustable particle size according to claim 1, characterized in that: The impact part (3.2) comprises an impact frame (3.2.5) and an impact plate (3.2.6), wherein the impact plate (3.2.6) is arranged on the impact frame (3.2.5) and is located between the impact frame (3.2.5) and the rotor body (7); There are multiple impact plates (3.2.6), and the multiple impact plates (3.2.6) are connected to the impact frame (3.2.5) via a bolt assembly (3.2.7).

9. The three-rotor fine crusher with adjustable particle size according to claim 1, characterized in that: The adjusting device (6) comprises a screw sleeve (6.2) and an adjusting screw (6.3), one end of the adjusting screw (6.3) is connected to the counter-attack part (3.2), and the other end of the adjusting screw (6.3) passes through the turning mechanism (3) and is screwed together with the screw sleeve (6.2).

10. The three-rotor fine crusher with adjustable particle size according to claim 9, characterized in that: The matching gap between the counterattack part (3.2) and the rotor body (7) is 20 mm to 86.6 mm.

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