Double-shaft crusher for producing solid alternative fuel
By adjusting the gap between the cutter rollers using a hydraulic system, the wear problem caused by the screw drive method is solved, thus achieving equipment stability and extending its lifespan.
Patent Information
- Application Number
- CN202423027238.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing twin-shaft crusher uses a screw drive method to adjust the gap between the cutter rollers, which causes a large frictional force between the cutter roller connecting parts and the screw. Long-term use may lead to wear and affect the stability and service life of the equipment.
A hydraulic system is used to adjust the gap between the cutter rollers. Through the hydraulic storage component and the position adjustment component, the hydraulic oil absorbs the reaction force to prevent the cutter rollers from shifting due to the reaction force and avoid wear.
It reduces wear on the cutter roller, improving the operational stability and service life of the equipment.
Smart Images

Figure CN223788635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of twin-shaft crushers, specifically a twin-shaft crusher for the production of solid alternative fuels. Background Technology
[0002] The twin-shaft crusher is a high-efficiency solid waste treatment equipment. It uses two relatively rotating cutter shafts to shear, squeeze and tear materials, breaking large pieces of material into small particles. It overcomes the limitation of other types of crushers that can only handle brittle and hard materials. In addition, the twin-shaft crusher also features low speed and high torque.
[0003] A twin-shaft crusher is a piece of equipment used for the production of solid alternative fuels. It uses two relatively rotating cutter shafts to shear, tear and crush materials, processing large materials such as household waste and industrial waste into smaller particles for further recycling or use as fuel.
[0004] In existing twin-shaft crushers, the distance between the two cutter rollers is usually adjusted by a screw drive to adjust the distance according to the size of the object being shredded. This method is convenient and quick to operate. However, when processing harder objects, the cutter rollers experience a large reaction force, which leads to a large friction between the connecting parts of the cutter rollers and the screw. Long-term use and high friction may cause wear on the connecting parts of the cutter rollers and the screw, thus affecting the stability and service life of the equipment. Therefore, a twin-shaft crusher for the production of solid alternative fuels is proposed to address the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a twin-shaft crusher for the production of solid alternative fuels, in order to solve the problem that when adjusting by means of a screw drive, the cutter roller is subjected to a large reaction force, which will cause a large friction between the connecting parts of the cutter roller and the screw. Long-term use and high friction may lead to wear of the connecting parts of the cutter roller and the screw, thereby affecting the stability and service life of the equipment.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A twin-shaft crusher for producing solid alternative fuels includes a feed inlet and a crusher assembly. The crusher assembly is fixedly connected to the bottom of the feed inlet. A hydraulic storage assembly is fixedly connected to the inside of the crusher assembly. A position adjustment assembly is fixedly connected to one side of the hydraulic storage assembly. The crusher assembly includes a crushing box with a track groove on its inner side. A housing is slidably connected to the inner side of the track groove in the crushing box. A drive motor is fixedly connected to the inner side of the housing. A cutter roller is fixedly connected to the end of the drive motor's main shaft. Electric telescopic rods are fixedly connected to the left and right sides of the crushing box. A connecting strip is fixedly connected to one side of the electric telescopic rod. A fixed... The cylinder shell, the hydraulic storage assembly includes a guide rod, a rubber plug fixedly connected to one side of the guide rod, the outer side of the rubber plug being in contact with the inner side of the oil shell, an oil storage channel being opened on the inner side of the oil shell, an oil passage being fixedly connected to the side of the oil shell near the position adjustment assembly, the position adjustment assembly includes a spring shell, a first spring being fixedly connected to the inner side of one end of the spring shell, a double column rod being fixedly connected to one end of the first spring, a rubber ring being fixedly connected to the outer side of the double column rod, a cut-off nozzle being fixedly connected to the inner side of the spring shell, a cut-off opening being opened on the inner side of the cut-off nozzle, the inner side of the cut-off nozzle being in contact with the outer side of the magnetic sealing block, a second spring being fixedly connected to one side of the magnetic sealing block, and an electromagnet being fixedly connected to one side of the second spring.
[0008] As a further optimization of this utility model, the inner side of the feed inlet is hollow, the inner side of the crushing box is hollow, the shape of the track groove is a three-section rectangle, and the track groove is connected to the inside of the crushing box.
[0009] As a further optimization of this utility model, the following features are provided: limit sliders are fixedly connected to the top and bottom of the housing; an installation groove is provided on the inner side of the housing near the drive motor; both ends of the cutter roller are movable inside the rail groove; one side of the housing is fixedly connected to one side of the double column rod; and the outer side of the spring shell is fixedly connected to the inner side of the fixed cylinder shell.
[0010] As a further optimization of this utility model, the oil shell is a hollow cylinder, the oil shell is connected to the inside of the oil pipe, the outer side of the rubber plug is fitted to the inner side of the oil storage channel opened in the oil shell, the oil storage channel is filled with hydraulic oil, and one side of the guide rod is fixedly connected to one side of the connecting strip.
[0011] As a further optimization of this utility model, the spring shell has two cylindrical grooves on its inner side, the grooves of the spring shell penetrate one end of the spring shell, the double column rod is cylindrical at both ends, the rubber ring fits against the inner side of the spring shell, and one end of the double column rod protrudes from the outside of the spring shell.
[0012] As a further optimization of this utility model, the inner side of the cut-off nozzle is hollow, the outer side of the spring shell is fixedly connected to the outer side of the oil pipe, a through hole is opened on the inner side of the spring shell near the oil pipe, the oil pipe communicates with the inside of the cut-off nozzle through the through hole of the spring shell, the cut-off port communicates with the inside of the cut-off nozzle, and the cut-off port penetrates the inner side of the cut-off nozzle.
[0013] As a further optimization of this utility model, the magnetic sealing block near the through hole of the spring shell is spherical, the end of the magnetic sealing block near the second spring is cylindrical, the magnetic sealing block slides inside the through-hole, the spherical part of the magnetic sealing block blocks the through hole of the spring shell, and the cylindrical part of the magnetic sealing block blocks the through-hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, by incorporating a crusher assembly, a hydraulic storage assembly, and a position adjustment assembly, the device adjusts the distance between the two cutter rollers via a hydraulic system. This avoids the traditional lead screw adjustment method, significantly reducing the wear on the traditional lead screw and its connecting parts caused by the reaction force when the cutter rollers crush objects. The limiting effect of the hydraulic oil absorbs the reaction force, preventing the cutter rollers from shifting due to the reaction force, thereby avoiding wear on the equipment body. This adjustment method ensures the stability of the equipment operation and improves its service life. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the crushing box structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the electric telescopic pole structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting strip structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the oil storage channel structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the rubber stopper structure of this utility model;
[0022] Figure 7 This is a schematic diagram of the spring shell structure of this utility model;
[0023] Figure 8 This utility model Figure 7 A schematic diagram of the structure at point A.
[0024] In the diagram: 1. Feed inlet;
[0025] 2. Crusher components; 21. Crushing box; 22. Track groove; 23. Machine casing; 24. Drive motor; 25. Cutter roller; 26. Electric telescopic rod; 27. Connecting strip; 28. Fixed cylinder shell;
[0026] 3. Hydraulic storage assembly; 31. Guide rod; 32. Rubber plug; 33. Oil tank; 34. Oil reservoir; 35. Oil passage;
[0027] 4. Position adjustment assembly; 41. Spring housing; 42. First spring; 43. Double column rod; 44. Rubber ring; 45. Through / Break nozzle; 46. Through / Break outlet; 47. Magnetic sealing block; 48. Second spring; 49. Electromagnet. Detailed Implementation
[0028] 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.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] Please see Figure 1-8 This utility model provides a technical solution:
[0031] A twin-shaft crusher for solid alternative fuel production includes a feed inlet 1 and a crusher assembly 2. The crusher assembly 2 is fixedly connected to the bottom of the feed inlet 1. A hydraulic storage assembly 3 is fixedly connected to the inside of the crusher assembly 2. A position adjustment assembly 4 is fixedly connected to one side of the hydraulic storage assembly 3. The crusher assembly 2 includes a crushing box 21. A track groove 22 is opened inside the crushing box 21. A housing 23 is slidably connected to the inside of the track groove 22. A drive motor 24 is fixedly connected to the inside of the housing 23. A cutter roller 25 is fixedly connected to the end of the main shaft of the drive motor 24. Electric telescopic rods 26 are fixedly connected to the left and right sides of the crushing box 21. A connecting strip 27 is fixedly connected to one side of the electric telescopic rod 26. A solid cylinder shell 28 is fixedly connected to the inside of the track groove 22 of the crushing box 21. The hydraulic storage assembly 3 includes a guide rod 31, a rubber plug 32 fixedly connected to one side of the guide rod 31, the outer side of the rubber plug 32 being in contact with the inner side of the oil shell 33, an oil storage channel 34 being opened on the inner side of the oil shell 33, an oil passage pipe 35 being fixedly connected to the side of the oil shell 33 near the position adjustment assembly 4, the position adjustment assembly 4 includes a spring shell 41, a first spring 42 being fixedly connected to the inner side of one end of the spring shell 41, a double column rod 43 being fixedly connected to one end of the first spring 42, a rubber ring 44 being fixedly connected to the outer side of the double column rod 43, a cut-off nozzle 45 being fixedly connected to the inner side of the spring shell 41, a cut-off opening 46 being opened on the inner side of the cut-off nozzle 45, the inner side of the cut-off nozzle 45 being in contact with the outer side of the magnetic sealing block 47, a second spring 48 being fixedly connected to one side of the magnetic sealing block 47, and an electromagnet 49 being fixedly connected to one side of the second spring 48.
[0032] As a further implementation of this scheme, the inner side of the feed inlet 1 is hollow, the inner side of the crushing box 21 is hollow, the shape of the track groove 22 is a three-section rectangle, the track groove 22 is connected to the inside of the crushing box 21, the top and bottom of the housing 23 are fixedly connected to limit sliding strips, the inner side of the housing 23 near the drive motor 24 is provided with an installation groove, the two ends of the cutter roller 25 are movable inside the track groove 22, one side of the housing 23 is fixedly connected to one side of the double column rod 43, the outer side of the spring shell 41 is fixedly connected to the inner side of the fixed cylinder shell 28. Under the pushing action of the double column rod 43, the housing 23 can drive the drive motor 24 and the cutter roller 25 to move, which plays a role in limiting the movement of the housing 23 and improving the stability of the housing 23.
[0033] As a further implementation of this scheme, the oil shell 33 is a hollow cylinder. The oil shell 33 is internally connected to the oil pipe 35. The outer side of the rubber plug 32 is fitted with the inner side of the oil storage channel 34 opened in the oil shell 33. Hydraulic oil is installed inside the oil storage channel 34. One side of the guide rod 31 is fixedly connected to one side of the connecting strip 27. Two cylindrical grooves are opened on the inner side of the spring shell 41. The grooves of the spring shell 41 penetrate one end of the spring shell 41. The double column rod 43 is cylindrical at both ends. The rubber ring 44 is fitted with the inner side of the spring shell 41. One end of the double column rod 43 protrudes from the outside of the spring shell 41. After the electric telescopic rod 26 is started, the hydraulic oil inside the oil storage channel 34 enters the spring shell 41 when the guide rod 31 and the rubber plug 32 are pushed. Thus, the position between the two cutter rollers 25 is adjusted under the push of the hydraulic oil.
[0034] As a further implementation of this solution, the inner side of the cut-off nozzle 45 is hollow, and the outer side of the spring shell 41 is fixedly connected to the outer side of the oil pipe 35. A through hole is opened on the inner side of the spring shell 41 near the oil pipe 35. The oil pipe 35 communicates with the inside of the cut-off nozzle 45 through the through hole of the spring shell 41. The cut-off port 46 communicates with the inside of the cut-off nozzle 45 and penetrates the inner side of the cut-off nozzle 45. The magnetic sealing block 47 is spherical near the through hole of the spring shell 41, and cylindrical at one end near the second spring 48. The magnetic sealing block 47 slides inside the cut-off nozzle 45. The spherical part of the magnetic sealing block 47 blocks the through hole of the spring shell 41, and the cylindrical part of the magnetic sealing block 47 blocks the cut-off port 46. This can prevent the cutter roller 25 from shifting due to the reaction force and prevent wear on the equipment body, ensuring the stability of equipment operation and improving service life.
[0035] Workflow: When adjusting the distance between the two cutter rollers 25 to prevent the reaction force of the cutter rollers 25 from affecting the stability of the equipment, the distance between the two cutter rollers 25 needs to be adjusted. At the same time, the two electric telescopic rods 26 are activated. The electric telescopic rods 26 drive the connecting plate 27 to move in the direction of the electric telescopic rods 26. The connecting plate 27 drives the guide rod 31 and the rubber plug 32 to move. The rubber plug 32 slides inside the oil storage channel 34 opened in the oil tank 33. Under the push of the guide rod 31, the hydraulic oil inside the oil storage channel 34 enters from the oil pipe 35. Inside the through hole of the spring housing 41, under the action of hydraulic oil, the magnetic sealing block 47 disengages from the through hole of the spring housing 41. The magnetic sealing block 47 compresses the second spring 48, causing the second spring 48 to deform. Under the action of the elastic force of the second spring 48, the ball of the magnetic sealing block 47 remains in place to seal the through hole of the spring housing 41. At this time, hydraulic oil flows into the interior of the spring housing 41 from inside the cut-off nozzle 45 and the cut-off port 46. Under the action of the hydraulic oil, the double-column rod 43 is pushed towards the direction of the housing 23. The rubber ring 44 seals the space between the double-column rod 43 and the spring housing 41. The double-column rod 43 causes the first spring 42 to deform. Under the elastic tension of the first spring 42, the double-column rod 43 continues to move in the direction of the first spring 42. At this time, under the pushing action of the double-column rod 43, the two cutter rollers 25 can be brought closer to each other, completing the adjustment of the cutter rollers 25. When the distance needs to be readjusted, the electromagnet 49 is activated to magnetically attract the magnetic blocking block 47. The magnetic blocking block 47 moves in the direction of the electromagnet 49, moving the magnetic blocking block 47 away from the through hole and the through-hole 45 of the spring shell 41. Under the elastic tension of the first spring 42, the through-hole is opened. The double column rod 43 resets the cutter roller 25, thereby readjusting the distance between the cutter rollers 25. When crushing objects, the drive motor 24 drives the cutter roller 25. The combined action of the two cutter rollers 25 achieves the crushing effect. During the crushing process, when the cutter roller 25 is subjected to a reaction force, the hydraulic oil inside the first spring 42 is blocked, and the double column rod 43 will not be able to move. This prevents the cutter roller 25 from displacing due to the reaction force and from causing wear on the equipment body, ensuring the stability of equipment operation and improving service life.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A twin-shaft crusher for the production of solid alternative fuels, comprising a feed inlet (1) and a crusher assembly (2), characterized in that: The bottom end of the feed inlet (1) is fixedly connected to a crusher assembly (2), the inside of the crusher assembly (2) is fixedly connected to a hydraulic storage assembly (3), and one side of the hydraulic storage assembly (3) is fixedly connected to a position adjustment assembly (4). The crusher assembly (2) includes a crushing box (21), the inside of the crushing box (21) is provided with a track groove (22), the inside of the track groove (22) of the crushing box (21) is slidably connected to a housing (23), the inside of the housing (23) is fixedly connected to a drive motor (24), the end of the main shaft of the drive motor (24) is fixedly connected to a cutter roller (25), the left and right sides of the crushing box (21) are both fixedly connected to an electric telescopic rod (26), one side of the electric telescopic rod (26) is fixedly connected to a connecting strip (27), the inside of the track groove (22) of the crushing box (21) is fixedly connected to a solid cylinder shell (28), the hydraulic storage assembly (3) includes a guide rod (31), the guide rod (31) A rubber plug (32) is fixedly connected to one side. The outer side of the rubber plug (32) is in contact with the inner side of the oil shell (33). An oil storage channel (34) is opened on the inner side of the oil shell (33). An oil passage pipe (35) is fixedly connected to the side of the oil shell (33) near the position adjustment component (4). The position adjustment component (4) includes a spring shell (41). A first spring (42) is fixedly connected to the inner side of one end of the spring shell (41). A double column rod (43) is fixedly connected to one end of the first spring (42). A rubber ring (44) is fixedly connected to the outer side of the double column rod (43). A through-stop nozzle (45) is fixedly connected to the inner side of the spring shell (41). A through-stop opening (46) is opened on the inner side of the through-stop nozzle (45). The inner side of the through-stop nozzle (45) is in contact with the outer side of the magnetic sealing block (47). A second spring (48) is fixedly connected to one side of the magnetic sealing block (47). An electromagnet (49) is fixedly connected to one side of the second spring (48).
2. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The inside of the feed inlet (1) is hollow, the inside of the crushing box (21) is hollow, the opening shape of the track groove (22) is a three-section rectangle, and the track groove (22) is connected to the inside of the crushing box (21).
3. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The top and bottom of the housing (23) are fixedly connected to limit slide bars. The inner side of the housing (23) near the drive motor (24) is provided with an installation groove. The two ends of the cutter roller (25) are movable inside the rail groove (22). One side of the housing (23) is fixedly connected to one side of the double column rod (43). The outer side of the spring shell (41) is fixedly connected to the inner side of the solid cylinder shell (28).
4. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The oil shell (33) is a hollow cylinder. The oil shell (33) is connected to the inside of the oil pipe (35). The outer side of the rubber plug (32) is attached to the inner side of the oil storage channel (34) opened in the oil shell (33). Hydraulic oil is provided inside the oil storage channel (34). One side of the guide rod (31) is fixedly connected to one side of the connecting strip (27).
5. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The inner side of the spring shell (41) is provided with two cylindrical grooves. The grooves of the spring shell (41) penetrate one end of the spring shell (41). The double column rod (43) is cylindrical at both ends. The rubber ring (44) fits against the inner side of the spring shell (41). One end of the double column rod (43) protrudes from the outside of the spring shell (41).
6. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The inner side of the cut-off nozzle (45) is hollow. The outer side of the spring shell (41) is fixedly connected to the outer side of the oil pipe (35). The inner side of the spring shell (41) near the oil pipe (35) has a through hole. The oil pipe (35) communicates with the inside of the cut-off nozzle (45) through the through hole of the spring shell (41). The cut-off port (46) communicates with the inside of the cut-off nozzle (45). The cut-off port (46) penetrates the inner side of the cut-off nozzle (45).
7. The twin-shaft crusher for producing solid alternative fuels according to claim 1, characterized in that: The magnetic sealing block (47) is spherical near the through hole of the spring shell (41), and cylindrical near the end of the magnetic sealing block (47) near the second spring (48). The magnetic sealing block (47) slides inside the through-hole (45). The spherical part of the magnetic sealing block (47) blocks the through hole of the spring shell (41), and the cylindrical part of the magnetic sealing block (47) blocks the through-hole (46).