Automatic adjusting device for counterattack plate
By combining connecting rods, contact plates, and bolts and nuts, the problem of loose nuts during the installation of the impact plate is solved, thereby improving the stability and fixing effect of the impact plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HUANGLONG INTELLIGENT BROKEN TECHNOLOGY LIMITED BY SHARE LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
AI Technical Summary
The existing impact plates are installed using bolts and nuts, but this method is difficult to use to secure them properly, causing the nuts to loosen easily and affecting the stability of the impact plate.
The system employs a combination structure of connecting rod, contact plate, and bolt and nut. The connecting rod is connected to the external thread, and the contact plate and bolt, in conjunction with the second nut, compress the first nut to reinforce the counter-attack plate and prevent loosening.
It effectively prevents the nuts from loosening, improves the stability and fixing effect of the impact plate, and extends its service life.
Smart Images

Figure CN224293390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of counter-attack plate technology, specifically to an automatic adjustment device for counter-attack plates. Background Technology
[0002] An impact crusher is a type of crushing machinery that uses impact energy to crush materials. Stone falls directly into the high-speed rotating rotor frame through the feed inlet at the top of the machine. The hammers provide centrifugal force to the material, which is then thrown against the front impact plate for crushing.
[0003] A known Chinese patent (application number: CN201921775026.8) discloses an automatically adjustable impact plate device. The upper impact plate mechanism includes an upper impact plate frame, a hydraulic adjustment device, and an auxiliary adjustment device. One end of the upper impact plate frame is hinged to the machine frame, and the other end is connected to the hydraulic adjustment device. An auxiliary adjustment device is located beside the hydraulic adjustment device and is connected to the upper impact plate frame. The hydraulic adjustment device includes a hydraulic cylinder, a hydraulic pump, and a hydraulic valve. The hydraulic pump is located on the outer surface of the machine frame, and its output end is connected to the hydraulic cylinder. The output end of the hydraulic cylinder is connected to the upper impact plate frame. A hydraulic pressure sensor is installed inside the hydraulic cylinder and is electrically connected to the hydraulic valve. The hydraulic pump and the hydraulic valve are also electrically connected. This invention has a simple structure and can automatically adjust the upper impact plate mechanism to meet production needs.
[0004] However, in implementing the relevant technology, the above-mentioned automatic adjustment counter-attack plate device has the following problems: In the existing method of installing the counter-attack plate, bolts and nuts are usually used together to install the counter-attack plate, but it is difficult to reinforce and fix the nuts. As a result, the nuts are prone to loosening over time, affecting the stability of the counter-attack plate. Therefore, an automatic adjustment device for the counter-attack plate is proposed. Utility Model Content
[0005] This utility model proposes an automatic adjustment device for impact plates, which solves the problem in the existing related technologies where impact plates are usually installed using bolts and nuts. However, it is difficult to reinforce and fix the nuts, which can easily loosen over time and affect the stability of the impact plate.
[0006] The technical solution of this utility model is as follows: an automatic adjustment device for a counter-attack plate, comprising: a frame;
[0007] The housing is mounted on the frame, and the interior of the housing is equipped with a counter-attack plate. A hydraulic adjustment device is mounted on the top of the housing, and a connecting block is mounted on the bottom of the hydraulic adjustment device.
[0008] Two fixed plates are fixedly installed on the top of the counterattack plate. A connecting rod is inserted into one side of the two fixed plates through a through hole. The two ends of the outer wall of the connecting rod are provided with external threads. Two first nuts are threaded to the outer side of the external threads. An abutment plate is provided on one side of the two first nuts. A bolt is threaded to the abutment plate. A second nut is threaded to the outer wall of the bolt.
[0009] Preferably, two hydraulic rods are hinged to each other on both sides of the frame, and the output ends of the two hydraulic rods are hinged to the housing.
[0010] Preferably, two strip plates are fixedly installed on the side of the frame opposite to the housing, and the two strip plates are connected by bolts.
[0011] Preferably, the outer wall of the housing is coated with an anti-rust coating, specifically an epoxy zinc-rich primer.
[0012] Preferably, the anti-rust coating is applied to the outer wall away from the housing, and the anti-corrosion coating is specifically a polyurethane topcoat.
[0013] Preferably, the outer wall of the impact plate is provided with a wear-resistant coating, specifically a tungsten carbide coating.
[0014] The working principle and beneficial effects of this utility model are as follows:
[0015] The impact plate is connected and fixed by inserting the connecting block into the fixing plate, passing the connecting rod through the connecting block and the fixing plate, and then screwing the first nut into the connecting rod to connect with the external thread. Next, the abutment plate is sleeved on the connecting rod and abuts against the first nut. Then, the bolt and the second nut are used to reinforce the two abutment plates. At the same time, the abutment plate squeezes the first nut, making the first nut more securely fixed to the impact plate, thus effectively preventing the first nut from loosening over time and affecting the stability of the impact plate. Attached Figure Description
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is a three-dimensional structural diagram of the counterattack plate proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the overall side view of the three-dimensional structure proposed in this utility model;
[0020] Figure 4 This is a three-dimensional cross-sectional view of the housing structure proposed in this utility model;
[0021] Figure 5 This utility model proposes Figure 1 Enlarged 3D structural diagram at point A;
[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the casing proposed in this utility model;
[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the counterattack plate proposed in this utility model.
[0024] In the diagram: 1. Frame; 2. Housing; 3. Impact plate; 4. Hydraulic adjustment device; 5. Connecting block; 6. Fixing plate; 7. Connecting rod; 8. External thread; 9. First nut; 10. Abutment plate; 11. Bolt; 12. Second nut; 13. Hydraulic rod; 14. Strip plate; 15. Anti-rust coating; 16. Anti-corrosion coating; 17. Wear-resistant coating. Detailed Implementation
[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0026] Please see Figure 1 - Figure 7 An automatic adjustment device for a counter-attack plate includes: a frame 1;
[0027] The housing 2 is mounted on the frame 1. The housing 2 has an internal counter-attack plate 3. The top of the housing 2 is equipped with a hydraulic adjustment device 4. The bottom of the hydraulic adjustment device 4 is equipped with a connecting block 5.
[0028] Two fixed plates 6 are fixedly installed on the top of the counterattack plate 3. A connecting rod 7 is inserted into one side of the two fixed plates 6 through a through hole. The two ends of the outer wall of the connecting rod 7 are provided with external threads 8. Two first nuts 9 are threaded to the outer side of the external threads 8. A contact plate 10 is provided on one side of the two first nuts 9. A bolt 11 is threaded to the contact plate 10. A second nut 12 is threaded to the outer wall of the bolt 11.
[0029] The technical solution provided by this utility model is as follows: by inserting the connecting block 5 into the fixing plate 6, then by passing the connecting rod 7 through the connecting block 5 and the fixing plate 6, and then by screwing the first nut 9 into the connecting rod 7 and threading it with the external thread 8, the impact plate 3 is connected and fixed. Next, the abutment plate 10 is sleeved on the connecting rod 7 and abuts against the first nut 9. Then, the bolt 11 and the second nut 12 are used to reinforce the two abutment plates 10. At the same time, the abutment plate 10 squeezes the first nut 9, making the first nut 9 more firmly fixed to the impact plate 3, thereby effectively preventing the first nut 9 from loosening over time and affecting the stability of the impact plate 3.
[0030] Furthermore, two hydraulic rods 13 are hinged to each other on both sides of the frame 1. The output ends of the two hydraulic rods 13 are hinged to the housing 2. Two strip plates 14 are fixedly installed on the side of the frame 1 opposite to the housing 2. The two strip plates 14 are connected to each other by bolts.
[0031] Specifically, by unscrewing the bolt from the strip plate 14, and then activating the hydraulic rod 13, the hydraulic rod 13 pushes the housing 2 upward, thus opening the housing 2. At this time, the internal components of the housing 2 can be inspected and repaired, effectively improving convenience.
[0032] Furthermore, the outer wall of the housing 2 is coated with an anti-rust coating 15, specifically an epoxy zinc-rich primer. The outer wall away from the housing 2 is coated with an anti-corrosion coating 16, specifically a polyurethane topcoat. The outer wall of the impact plate 3 is provided with a wear-resistant coating 17, specifically a tungsten carbide coating.
[0033] Specifically, the anti-rust coating 15 and anti-corrosion coating 16 applied to the housing 2 effectively prevent the intrusion of external corrosive media, which would cause the housing 2 to rust. The wear-resistant coating 17 improves the wear resistance of the impact plate 3, reduces the wear of the impact plate 3 by materials, and thus extends its service life.
[0034] The working principle of this utility model is as follows: By inserting the connecting block 5 into the fixing plate 6, and then passing the connecting rod 7 through the connecting block 5 and the fixing plate 6, the first nut 9 is screwed into the connecting rod 7 and threadedly connected to the external thread 8 to connect and fix the counterattack plate 3. Next, the abutment plate 10 is sleeved on the connecting rod 7 and abuts against the first nut 9. Then, the bolt 11 and the second nut 12 are used to reinforce the two abutment plates 10. At the same time, the abutment plate 10 squeezes the first nut 9, making the first nut 9 more firmly fixed to the counterattack plate 3, thereby effectively preventing the first nut 9 from loosening over time and affecting the stability of the counterattack plate 3.
[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An automatic adjustment device for a counter-attack plate, characterized in that, include: Rack (1); The housing (2) is mounted on the frame (1). The housing (2) has a counter-attack plate (3) inside. The top of the housing (2) has a hydraulic adjustment device (4) and the bottom of the hydraulic adjustment device (4) has a connecting block (5). Two fixed plates (6) are fixedly installed on the top of the counterattack plate (3). A connecting rod (7) is inserted into one side of the two fixed plates (6) through a through hole. The two ends of the outer wall of the connecting rod (7) are provided with external threads (8). Two first nuts (9) are threaded to the outer side of the external threads (8). A contact plate (10) is provided on one side of the two first nuts (9). A bolt (11) is threaded on the contact plate (10). A second nut (12) is threaded to the outer wall of the bolt (11).
2. The automatic adjustment device for a counter-attack plate according to claim 1, characterized in that: Two hydraulic rods (13) are hinged to each other on both sides of the frame (1), and the output ends of the two hydraulic rods (13) are hinged to the housing (2).
3. The automatic adjustment device for a counter-attack plate according to claim 2, characterized in that: Two strip plates (14) are fixedly installed on the side of the frame (1) opposite to the housing (2), and the two strip plates (14) are connected by bolts.
4. The automatic adjustment device for a counter-attack plate according to claim 1, characterized in that: The outer wall of the housing (2) is coated with an anti-rust coating (15), which is specifically an epoxy zinc-rich primer.
5. The automatic adjustment device for a counter-attack plate according to claim 4, characterized in that: The rust-proof coating (15) is coated with an anti-corrosion coating (16) on the outer wall away from the housing (2), and the anti-corrosion coating (16) is specifically a polyurethane topcoat.
6. The automatic adjustment device for a counter-attack plate according to claim 1, characterized in that: The outer wall of the counter-attack plate (3) is provided with a wear-resistant coating (17), which is specifically a tungsten carbide coating.