A double rotor pulverizer with replaceable wear liner

Abstract

The utility model discloses a replaceable wear -resistant lining plate's double rotor rubbing crusher relates to material rubbing equipment technical field, and this rubbing crusher includes rubbing crusher casing, the wear -resistant lining plate of extractable installation in casing, fixed mechanism and cleaning mechanism, the fixed mechanism includes the connecting strip of handle connection and triangular bolt, and the quick unlocking is realized to triangular bolt by pulling handle and making the wear -resistant lining plate and implement, the cleaning mechanism includes the long strip brush of elastic setting, and when the wear -resistant lining plate is extracted, the surface is scraped and cleaned to it, and the rubbing crusher still includes the rotating mechanism of main rotating column linkage drive, and through the periodic impact casing, makes the spring vibration of wear -resistant lining plate back to clean up the problem of accumulated material. The utility model combines the quick disassembly of wear -resistant lining plate, and the combination of scraping cleaning and on -line vibration cleaning has solved the wear -resistant lining plate replacement cumbersome, and the problem that residual material is difficult to clean up, has promoted maintenance efficiency and equipment operation reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of material crushing and processing equipment, and in particular to a dual-rotor crusher with replaceable wear-resistant liners. Background Technology

[0002] Crushers are key pieces of equipment widely used in mining, chemical, building materials, and agriculture, used to process lumpy materials into powders or granules of the required particle size. During the operation of a crusher, the high-speed moving material causes severe impact and wear on the inner wall of the crusher casing. To protect the casing and extend the service life of the equipment, replaceable wear-resistant liners are usually installed on the inner wall of the casing.

[0003] Wear-resistant liners, as vulnerable parts directly subjected to material wear, require regular inspection and replacement. In existing technologies, wear-resistant liners are mostly fastened to the crusher housing from the inside or outside with numerous bolts. This method of fixing liner plates requires operators to enter the crusher or, within the limited external space, individually remove and install a large number of bolts. The entire process is not only time-consuming and labor-intensive, but also significantly extends equipment downtime for maintenance, directly impacting production efficiency.

[0004] Furthermore, after prolonged use, a large amount of fine powdery or sticky material will firmly adhere to the working surface of the wear-resistant liner. Existing equipment does not consider effective cleaning of these deposits when replacing the liner. Operators often need to painstakingly remove the liner and then perform additional manual scraping or cleaning, which further increases the complexity and workload of maintenance, making the liner replacement and cleaning process inefficient.

[0005] Therefore, this utility model proposes a dual-rotor crusher with replaceable wear-resistant liners to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a dual-rotor crusher with replaceable wear-resistant liners, aiming to improve the technical problems of cumbersome replacement of wear-resistant liners and difficulty in cleaning the residue accumulation on the surface and back of the liner in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dual-rotor pulverizer with replaceable wear-resistant liners, comprising: a base, a pulverizer housing disposed on the base, and a wear-resistant liner removably installed inside the pulverizer housing, wherein a rotating column driven by a power mechanism is rotatably connected inside the pulverizer housing; and a fixing mechanism and a cleaning mechanism, wherein the fixing mechanism includes a connecting strip fixedly connected to a handle, and a triangular pin is fixed on the connecting strip; the cleaning mechanism includes a brush mounting plate elastically movable above the pulverizer housing, wherein a long brush is fixed at the bottom of the brush mounting plate, the position of the long brush corresponding to the removal path of the wear-resistant liner; the triangular pin is insertably and detachably inserted through the side wall of the pulverizer housing to abut against or detach from the wear-resistant liner; and the brush mounting plate is elastically connected to the pulverizer housing by a second spring and a spring plate.

[0008] Preferably, a U-shaped frame is also fixed on the connecting strip. The U-shaped frame contains a first spring and a connecting post. The connecting post passes through the crusher housing and cooperates with the U-shaped frame to guide and position the movement of the connecting strip.

[0009] Preferably, the cleaning mechanism further includes a baffle slidably disposed on the crusher housing and a top plate fixed on the crusher housing, the baffle being used to control the lateral movement of the brush mounting plate and the top plate being used to limit the vertical movement range of the brush mounting plate.

[0010] Preferably, the dual-rotor pulverizer with replaceable wear-resistant liners further includes a vibration mechanism for vibrating and cleaning the wear-resistant liners.

[0011] Preferably, the vibration mechanism includes a third spring and a buffer plate disposed between the back of the wear-resistant liner and the crusher housing.

[0012] Preferably, the rotating mechanism further includes a reciprocating threaded rod, on which a sleeve and a sleeve post are threadedly engaged. The sleeve reciprocates under the drive of the reciprocating threaded rod and impacts the triangular block inside the crusher housing.

[0013] Preferably, a fourth pulley is coaxially fixed on the rotating column, and a third pulley is coaxially fixed on the reciprocating threaded rod. The fourth pulley is connected to the third pulley via a secondary belt.

[0014] Preferably, the outer wall of the casing is fixed with a triangular block, and the rotating mechanism further includes a fixing plate fixed to the connecting plate by bolts. The fixing plate is disposed adjacent to the outer wall of the crusher housing and is used to fix the casing when replacing the wear-resistant plate.

[0015] Preferably, the crusher housing is further provided with a crushing mechanism, which includes a plurality of rotor discs fixed on the rotating column and crushing hammers rotatably connected between adjacent rotor discs via shafts.

[0016] Preferably, the power mechanism includes a motor fixed on the base and a first pulley, and a second pulley is coaxially fixed on the rotating column. The first pulley is connected to the second pulley via a main belt.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of cumbersome replacement steps, unreliable fixing, and inability to clean the attached residue on the working surface of the liner during disassembly by setting a pin-type fixing mechanism that can be controlled by a handle and an elastic brush cleaning mechanism that is linked to the replacement action of the wear-resistant liner. It achieves quick disassembly and locking of the wear-resistant liner, and simultaneously completes the scraping and cleaning of the liner surface during the replacement process, which significantly improves maintenance efficiency and cleaning effect. 2. This utility model solves the problem in the prior art where the gap between the wear-resistant liner and the shell of the crusher is prone to accumulating powder and is difficult to clean online, affecting the long-term stable operation of the equipment. It achieves continuous and automatic vibration cleaning of the back of the wear-resistant liner without stopping the equipment, effectively preventing material blockage and ensuring crushing efficiency and equipment reliability. Attached Figure Description

[0018] Figure 1 This is a perspective view of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model. Figure 2 This is a schematic diagram of the base of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model. Figure 3 This is a schematic diagram of the crushing mechanism of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model. Figure 4 This is a schematic diagram of the internal structure of a dual-rotor crusher housing with replaceable wear-resistant liners proposed in this utility model. Figure 5 This is a schematic diagram of the cleaning mechanism of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model. Figure 6 This is a schematic diagram of the rotating mechanism of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model.

[0019] Figure 7This is a schematic diagram of the fixing mechanism of a dual-rotor crusher with replaceable wear-resistant liners proposed in this utility model.

[0020] Legend: 1. Base; 2. Power mechanism; 201. Motor; 202. First pulley; 203. Main belt; 204. Second pulley; 3. Crusher housing; 4. Crushing mechanism; 401. Rotating column; 402. Rotor disc; 403. Crushing hammer; 404. Shaft; 5. Fixing mechanism; 501. Handle; 502. Connecting bar; 503. Triangular pin; 504. U-shaped frame; 505. First spring; 506. Connecting column; 6. Rotating mechanism; 601. Reciprocating threaded rod; 6 02. Third pulley; 603. Fourth pulley; 604. Secondary belt; 605. Sleeve box; 606. Sleeve column; 607. Triangular block; 608. Fixing plate; 609. Connecting plate; 610. Bolt; 611. Hole; 7. Wear-resistant liner; 8. Cleaning mechanism; 801. Spring plate; 802. Second spring; 803. Brush mounting plate; 804. Long strip brush; 805. Baffle; 806. Top plate; 9. Vibration mechanism; 901. Third spring; 902. Buffer plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-7 The present invention provides an embodiment of a dual-rotor pulverizer with replaceable wear-resistant liners, comprising a base 1, a pulverizer housing 3 fixedly mounted on the base 1, a power mechanism 2 mounted on the base 1, a pulverizing mechanism 4 and wear-resistant liners 7 both disposed inside the pulverizer housing 3, the wear-resistant liners 7 being replaceably mounted on the inner wall of the pulverizer housing 3, and a fixing mechanism 5 for locking the wear-resistant liners 7 and a cleaning mechanism 8 for cleaning the wear-resistant liners 7 being provided on the outside of the pulverizer housing 3; Specifically, the power mechanism 2 includes a motor 201 fixed to the base 1 and a first pulley 202 coaxially fixed to the output shaft of the motor 201. The crushing mechanism 4 includes a rotating column 401 rotatably connected to the inside of the crusher housing 3. A second pulley 204 is coaxially fixed to one end of the rotating column 401. The first pulley 202 is connected to the second pulley 204 via a main belt 203, so that the rotating column 401 is driven to rotate by the motor 201. Through the coordinated operation of the fixing mechanism 5 and the cleaning mechanism 8, the wear-resistant liner 7 can be conveniently replaced and effectively cleaned. The fixing mechanism 5 includes a handle 501, a connecting strip 502 and a triangular pin 503. One end of the connecting strip 502 is fixedly connected to the handle 501. The triangular pin 503 is fixedly set on the connecting strip 502 and can be inserted and removed through the side wall of the crusher housing 3. When it is necessary to fix the wear-resistant liner 7, push the handle 501 so that the end of the triangular pin 503 abuts against the outer side wall of the wear-resistant liner 7, thereby forming a limit lock on the wear-resistant liner 7. When it is necessary to replace, pull out the handle 501 to disengage the triangular pin 503 from the wear-resistant liner 7. Meanwhile, the cleaning mechanism 8 is set on the upper part of the crusher housing 3 and is directly opposite the extraction path of the wear-resistant liner 7. The cleaning mechanism 8 includes a brush mounting plate 803, a long brush 804, a second spring 802 and a spring plate 801. The long brush 804 is fixedly installed at the bottom of the brush mounting plate 803. The brush mounting plate 803 is elastically connected to the upper structure of the crusher housing 3 through the second spring 802 and the spring plate 801, so that during the process of the wear-resistant liner 7 being extracted, the long brush 804 can always adhere to the surface of the wear-resistant liner 7 under the elastic force of the second spring 802 and scrape off the attached material residue. The rotating column 401 is not only fixed with the second pulley 204, but also with the fourth pulley 603 coaxially fixed; the rotating mechanism 6 includes a reciprocating threaded rod 601, a third pulley 602, a secondary belt 604, a sleeve 605, a sleeve column 606, a triangular block 607, a fixing plate 608, a connecting plate 609, and bolts 610. The third pulley 602 is coaxially fixed to one end of the reciprocating threaded rod 601. The fourth pulley 603 is connected to the third pulley 602 through the secondary belt 604. The sleeve 605 and the sleeve column 606 are threadedly engaged on the reciprocating threaded rod 601. The triangular block 607 is fixed on the outer wall of the sleeve 605. In the assembled state, when the rotating column 401 rotates, the power is transmitted to the third pulley 602 through the fourth pulley 603 and the auxiliary belt 604, which in turn drives the reciprocating threaded rod 601 to rotate. Due to the special thread structure of the reciprocating threaded rod 601, the sleeve 605 and the sleeve column 606 will make reciprocating linear motion on the reciprocating threaded rod 601. At the same time, the fixing plate 608 is fixed to the connecting plate 609 by bolts 610. The connecting plate 609 is fixed to the outer wall of the crusher housing 3. During the reciprocating motion of the sleeve 605, the triangular block 607 on the sleeve 605 will periodically strike the crusher housing 3. The impact force generated by the reciprocating impact is transmitted to the crusher housing 3, and further triggers the vibration mechanism 9 set between the wear-resistant liner 7 and the crusher housing 3. The vibration mechanism 9 includes a third spring 901 and a buffer plate 902. The buffer plate 902 is set between the third spring 901 and the crusher housing 3. The other end of the third spring 901 abuts against the back of the wear-resistant liner 7. The impact causes the third spring 901 to vibrate violently at high frequency, thereby causing the wear-resistant liner 7 to vibrate together and shake off the material residue attached to the back of the wear-resistant liner 7. To enhance the stability and feel of the fixing mechanism 5 during locking and unlocking operations, a U-shaped frame 504 is also fixed on the connecting bar 502. The U-shaped frame 504 houses a first spring 505 and a connecting post 506. One end of the connecting post 506 passes through the crusher housing 3, and the other end of the connecting post 506 abuts against the first spring 505 inside the U-shaped frame 504, so that the handle 501 has a phased positioning effect when it is pulled out or pushed in. In order to precisely control the movement of the cleaning mechanism 8 and protect the long brush 804, the cleaning mechanism 8 also includes a baffle 805 and a top plate 806. The baffle 805 is slidably disposed on the crusher housing 3. By pushing and pulling the baffle 805, the lateral movement of the brush mounting plate 803 can be controlled, so that the long brush 804 can accurately fit or detach from the wear-resistant liner 7. The top plate 806 is fixed on the crusher housing 3 and located above the brush mounting plate 803. It is used to limit the vertical movement range of the brush mounting plate 803 under the elastic force of the second spring 802, so as to avoid excessive compression and damage to the long brush 804. The vibration mechanism 9 also includes a buffer plate 902, which is located between the third spring 901 and the crusher housing 3 to buffer and transmit vibration. The impact structure of the pushing mechanism 6 is as follows: a triangular block 607 is fixed on the outer wall of the sleeve 605, and a fixing plate 608 is fixed on the outer wall of the crusher housing 3 by bolts 610 through a connecting plate 609 with multiple holes 611. The fixing plate 608 is positioned directly opposite the reciprocating motion path of the triangular block 607 and is used to fix the sleeve when replacing the wear-resistant plate. The specific structure of the crushing mechanism 4 is as follows: multiple rotor disks 402 are coaxially fixed on the rotating column 401 by key connection or interference fit; multiple crushing hammers 403 are arranged between two adjacent rotor disks 402; and multiple crushing hammers 403 are rotatably connected to the rotor disks 402 by the same shaft 404. The multiple rotor disks 402 are also connected together by the shaft 404 to ensure that all crushing hammers 403 rotate synchronously at high speed.

[0023] Working principle: After the equipment is started, the motor 201 runs and drives the second pulley 204 to rotate through the first pulley 202 and the main belt 203. The second pulley 204 drives the rotating column 401 to rotate at high speed. The rotor disc 402 and the crushing hammer 403 fixed on the rotating column 401 move synchronously at high speed, impacting and crushing the material entering the crusher housing 3. When it is necessary to replace or clean the wear-resistant liner 7, first pull out the baffle 805, so that under the elastic force of the second spring 802, the brush mounting plate 803 drives the long strip brush 804 to move downward and fit against the upper surface of the wear-resistant liner 7. Then, pull the handle 501 outward. The handle 501 drives the triangular pin 503 out of the side wall of the crusher housing 3 through the connecting strip 502, releasing the lock on the wear-resistant liner 7. Pull the wear-resistant liner 7 upward. During the pulling process, the long strip brush 804 will scrape the surface of the wear-resistant liner 7 to remove the attached residue. After the replacement is completed, put the new or cleaned wear-resistant liner 7 back in, and then push the handle 501 and the baffle 805 back in sequence to complete the replacement and locking. During normal operation of the equipment, the rotating column 401 drives the crushing mechanism 4 to work, and also drives the reciprocating threaded rod 601 to rotate synchronously through the coaxially fixed fourth pulley 603, auxiliary belt 604 and third pulley 602. As the reciprocating threaded rod 601 rotates, the sleeve 605 threaded on the reciprocating threaded rod 601 will reciprocate linearly along the axial direction of the reciprocating threaded rod 601. During the reciprocating motion, the triangular block 607 fixed on the sleeve 605 will periodically collide with the fixed plate 608 fixed on the outside of the crusher housing 3. The vibration is transmitted through the crusher housing 3 to the vibration mechanism 9 located on the back of the wear-resistant liner 7, causing the third spring 901 to vibrate at high frequency, thereby shaking off the material accumulated on the back of the wear-resistant liner 7, realizing online automatic cleaning.

Claims

1. A dual-rotor crusher with replaceable wear-resistant liners, comprising: The system comprises a base (1), a crusher housing (3) disposed on the base (1), and a wear-resistant liner (7) removably installed inside the crusher housing (3), wherein a rotating column (401) driven by a power mechanism (2) is rotatably connected inside the crusher housing (3), and is characterized in that it further comprises: The fixing mechanism (5) and the cleaning mechanism (8) include a connecting strip (502) fixedly connected to the handle (501), and a triangular pin (503) fixed on the connecting strip (502). The triangular pin (503) can be inserted and removed through the side wall of the crusher housing (3) to abut against or detach from the wear-resistant liner (7). The cleaning mechanism (8) includes a brush mounting plate (803) that is elastically movable above the crusher housing (3). A long brush (804) is fixed at the bottom of the brush mounting plate (803). The position of the long brush (804) corresponds to the removal path of the wear-resistant liner (7). The brush mounting plate (803) is elastically connected to the crusher housing (3) by a second spring (802) and a spring plate (801).

2. A dual-rotor pulverizer with replaceable wear-resistant liners according to claim 1, characterized in that: A U-shaped frame (504) is also fixed on the connecting strip (502). The U-shaped frame (504) contains a first spring (505) and a connecting post (506). The connecting post (506) passes through the crusher housing (3) and cooperates with the U-shaped frame (504) to guide and position the movement of the connecting strip (502).

3. A dual-rotor crusher with replaceable wear-resistant liners according to claim 1, characterized in that: The cleaning mechanism (8) further includes a baffle (805) slidably disposed on the crusher housing (3) and a top plate (806) fixed on the crusher housing (3). The baffle (805) is used to control the lateral movement of the brush mounting plate (803), and the top plate (806) is used to limit the vertical movement range of the brush mounting plate (803).

4. A dual-rotor crusher with replaceable wear-resistant liners according to claim 1, characterized in that: The dual-rotor crusher also includes a rotating mechanism (6) and a vibration mechanism (9) for vibrating and cleaning the wear-resistant liner (7).

5. A dual-rotor crusher with replaceable wear-resistant liners according to claim 4, characterized in that: The vibration mechanism (9) includes a third spring (901) and a buffer plate (902) disposed between the back of the wear-resistant liner (7) and the crusher housing (3).

6. A dual-rotor pulverizer with replaceable wear-resistant liners according to claim 5, characterized in that: The rotating mechanism (6) includes a reciprocating threaded rod (601), on which a sleeve (605) and a sleeve (606) are threadedly fitted. The sleeve (605) reciprocates under the drive of the reciprocating threaded rod (601) and impacts the triangular block (607) inside the crusher housing (3), so as to cause the wear-resistant liner (7) to vibrate through the vibration mechanism (9).

7. A dual-rotor pulverizer with replaceable wear-resistant liners according to claim 6, characterized in that: A fourth pulley (603) is coaxially fixed on the rotating column (401), and a third pulley (602) is coaxially fixed on the reciprocating threaded rod (601). The fourth pulley (603) is connected to the third pulley (602) via a secondary belt (604).

8. A dual-rotor crusher with replaceable wear-resistant liners according to claim 6, characterized in that: The outer wall of the sleeve (605) is fixed with a triangular block (607). The rotating mechanism (6) also includes a fixing plate (608) fixed to the connecting plate (609) by bolts (610). The fixing plate (608) is disposed adjacent to the outer wall of the crusher housing (3) and is used to fix the sleeve (605) when replacing the wear-resistant plate. The connecting plate (609) has a hole (611) inside.

9. A dual-rotor crusher with replaceable wear-resistant liners according to claim 1, characterized in that: The crusher housing (3) is also provided with a crushing mechanism (4), which includes a plurality of rotor discs (402) fixed on the rotating column (401) and crushing hammers (403) rotatably connected between adjacent rotor discs (402) via shafts (404).

10. A dual-rotor crusher with replaceable wear-resistant liners according to claim 1, characterized in that: The power mechanism (2) includes a motor (201) fixed on the base (1) and a first pulley (202). A second pulley (204) is coaxially fixed on the rotating column (401). The first pulley (202) is connected to the second pulley (204) via a main belt (203).

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