Granularity-adjustable double-rotor impact crusher

By designing a dual-rotor impact crusher with adjustable particle size, the output increase and particle size adjustment are achieved using paired rotor bodies and flip mechanisms, which solves the problems of small output and difficult particle size adjustment in the prior art.

CN222984488UActive Publication Date: 2025-06-17MIANYANG JINTAI MECHANICAL EQUIP MFG
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Patent Information

Application Number
CN202421815362.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-06-17
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

The existing dual-rotor impact crusher has small output when processing large materials, difficult to adjust the discharge particle size, and the equipment covers a large area.

Method used

A double-rotor impact crusher with adjustable particle size is designed. By setting the rotor body in pairs at the same horizontal position, and setting the flip mechanism and adjustment device, the relative position adjustment of the rotor body and the gap adjustment of the impact part are realized, thereby improving the output of the crusher and the adjustability of the discharge particle size.

Benefits of technology

The output of the crusher is improved, the problem of difficulty in adjusting the discharge particle size is solved, and compared with the two independent single rotor counter-attack, the area covers a small area.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222984488U_ABST
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Abstract

The utility model discloses a granularity-adjustable birotor impact crusher, which comprises a bottom frame and a crushing assembly arranged on the bottom frame, the crushing assembly comprises rotor bodies arranged in pairs at the same horizontal position, the rotating directions of the rotor bodies arranged in pairs are opposite, and turnover mechanisms are arranged on the two sides of the rotor bodies arranged in pairs. A counterattack part matched with the rotor body is arranged in the turnover mechanism, and the counterattack part adjusts a matching gap between the counterattack part and the rotor body through an adjusting device; the two impact crushers work at the same time, the yield of the crusher is increased, the height of the whole crusher body is not increased, the occupied area of the crusher is smaller than that of two independent single-rotor impact crushers, the discharging granularity can be adjusted according to actual requirements by adjusting the matching gap, and therefore the problem that the discharging granularity is difficult to adjust is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of crusher equipment, in particular to a double-rotor impact crusher with adjustable particle size. Background Art

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

[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 achieved 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, the 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 a greater production capacity. At present, in domestic and foreign double-rotor fine crushers, the two crushing rotors are divided into upper and lower levels, resulting in 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 double-rotor impact crusher with adjustable particle size. The device adopts a double-rotor body and places the two rotor bodies opposite to each other 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 layer is provided with an adjusting 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 double-rotor impact crusher with adjustable particle size includes a chassis and a crushing assembly arranged on the chassis;

[0008] Wherein, the crushing assembly includes rotor bodies arranged in pairs at the same horizontal position. 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. An impact part matching the rotor body is arranged in the flipping mechanism, and the matching gap between the impact part and the rotor body is adjusted by an adjusting device.

[0009] As a further technical solution of the double-rotor fine crusher, the 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, the flipping frame body is rotationally connected to the lower frame body through a rotating part, and a hydraulic component is also hinged between the flipping frame body and the lower frame body, and the hydraulic component rotates the flipping mechanism towards the outside of the rotor body.

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

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

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

[0014] Wherein, the positioning component 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 double-rotor fine crusher, the positioning component 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 hexagonal socket head screw.

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

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

[0019] Wherein, a plurality of the 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 double-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 double-rotor fine crusher, the matching gap between the counterattack part and the rotor body is 20mm to 86.6mm.

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

[0023] 1. The utility model provides a double-rotor impact crusher with adjustable particle size, which includes a crushing assembly. The crushing assembly is provided with rotor bodies arranged in pairs at the same horizontal position, and the rotor bodies arranged in pairs rotate in opposite directions. In this way, it is equivalent to two impact crushers working simultaneously, increasing the output of the crusher, and the height of the entire crusher body will not increase, and it occupies less area than two independent single-rotor impact crushers;

[0024] 2. On both sides of the rotor bodies arranged in pairs in the utility model, a turning mechanism is provided. The turning mechanism realizes the function of turning the turning mechanism outward to the rotor body through a hydraulic assembly. When a jamming phenomenon occurs, it can be cleaned in time;

[0025] 3. The turning mechanism in the utility model is provided with a counterattack part matching the rotor body. The counterattack part adjusts the matching gap between the counterattack part and the rotor body through an adjusting device. By adjusting the matching gap, the discharge particle size can be adjusted according to actual needs, thus solving the problem of difficult adjustment of the discharge particle size. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 is a front view structural schematic diagram of a three-rotor fine crusher provided by the utility model in the open and closed states of the turning mechanism;

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

[0029] Figure 3 is a front view structural schematic diagram of the crushing assembly provided by the utility model;

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

[0031] Figure 5 is a schematic diagram of the turning mechanism provided by the utility model;

[0032] Figure 6 is a side view structural schematic diagram of the turning mechanism provided by the utility model;

[0033] Figure 7 is a front view structural schematic diagram of the counterattack frame provided by the utility model;

[0034] Figure 8 is Figure 7Schematic cross-sectional structure diagram marked A-A;

[0035] Figure 9 is Figure 7 Schematic enlarged structure diagram marked I in;

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

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

[0038] Markings in the attached drawings and corresponding component names:

[0039] 2 - Crushing component, 2.1 - Feeding port, 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;

[0040] 3 - Tipping mechanism, 3.1 - Tipping 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;

[0041] 4 - Hydraulic component, 5 - Underframe;

[0042] 6 - Adjusting device, 6.1 - Protective cover, 6.2 - Nut sleeve, 6.3 - Adjusting screw;

[0043] 7 - Rotor body, 8 - Material block, 9 - Belt assembly, 11 - First driving component. Detailed implementation manners

[0044] 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 in conjunction with embodiments and the attached 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.

[0045] Embodiment:

[0046] This embodiment provides a double-rotor counterattack crusher with adjustable particle size, as Figures 1 - 3 and Figure 5 shown, including an underframe 5 and a crushing component 2 arranged on the underframe 5. The crushing component 2 is a double-rotor counterattack crusher or other counterattack crushers, and the crushing component 2 is provided with driving force by a first driving component 11;

[0047] Among them, the crushing assembly 2 includes rotor bodies 7 arranged in pairs at the same horizontal position. The rotor bodies 7 arranged in pairs rotate in opposite directions. In this way, it is equivalent to two impact crushers working simultaneously, increasing the output of the crusher, and the height of the entire crusher body will not increase. It occupies less floor area than two independent single-rotor impact crushers. Moreover, 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.

[0048] Specifically, please refer to Figures 4 - 6 As shown, the 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;

[0049] Among them, a feed inlet 2.1 for feeding material blocks 8 is arranged at the upper part of the upper frame body 2.3. Two first observation windows 2.2 are arranged on the side wall surface of 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 carrying the rotor body 7 is arranged at the joint of the lower frame body 2.4 and the upper frame body 2.3. Second connection holes 2.6 are arranged on both sides of the lower frame body 2.4. A rotating part 3.4 matching the second connection hole 2.6 is arranged on the lower side of the flipping frame body 3.1. Two second observation windows 3.5 are arranged in the middle of the flipping frame body 3.1 for observing the internal situation. Moreover, a hydraulic assembly 4 is hinged between the flipping frame body 3.1 and the lower frame body 2.4. The hydraulic assembly 4 rotates the flipping mechanism 3 to the outside of the rotor body 7, so that when a jamming phenomenon occurs, the device can be opened in time for cleaning.

[0050] In this embodiment, please refer to Figures 5 - 9 As shown, a positioning assembly 3.3 is arranged between the impact part 3.2 and the flipping frame body 3.1;

[0051] Specifically, the positioning assembly 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 impact 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 socket head cap screws 3.2.10;

[0052] Meanwhile, several pad groups 3.2.3 are arranged 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 outer side 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 is synchronously positioned and adjusted for the counterattack part 3.2 through the nut screwing-in and adjusting device 6.

[0053] Among them, please refer to again 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 counterattack plates 3.2.6 are evenly arranged, and the plurality of counterattack plates 3.2.6 are connected to the counterattack frame 3.2.5 through 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.

[0054] 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 protective cover 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 protective cover 6.1. One end of the adjusting screw 6.3 is connected to the counterattack frame 3.2.5, and the other end of the adjusting screw 6.3 passes through the flipping frame body 3.1 and is threadedly tightened 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 nut and the screw sleeve 6.2, the purpose of adjusting the matching gap between the counterattack part 3.2 and the rotor body 7 to be between 20 mm and 86.6 mm is achieved. 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.

[0055] The above-mentioned specific implementation manners have further elaborated on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above is only the specific implementation manners of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A twin-rotor impact crusher with adjustable particle size, characterized in that: It comprises a base frame (5) and a crushing assembly (2) arranged on the base frame (5); The 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 twin-rotor impact crusher with adjustable particle size according to claim 1, characterized in that: The 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 flip frame (3.1) is rotatably connected to the lower frame (2.4) via a rotating part (3.4), and a hydraulic component (4) is hinged between the flip frame (3.1) and the lower frame (2.4), and the hydraulic component (4) causes the flip mechanism (3) to rotate toward the outside of the rotor body (7).

3. A twin-rotor impact 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. A twin-rotor impact 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 twin-rotor impact 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 twin-rotor impact 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 twin-rotor impact 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 twin-rotor impact 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 twin-rotor impact 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. A twin-rotor impact 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.