Double-gate four-rod discharging structure of double-roller machine
By designing a double-gate, four-bar feeding structure for the roller mill, the size of the feed inlet is adjusted, solving the problem of mismatched feeding speed in the roller sand making machine, and achieving flexible control of the feeding speed and stable operation of the equipment.
Patent Information
- Application Number
- CN202423227306.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The feed inlet size of existing roller sand making machines is fixed, and the feed speed cannot be adjusted as needed, resulting in mismatched feed speeds and easy problems such as idling or blockage.
A double-gate four-rod feeding structure for a roller mill is designed. By cooperating with the left and right moving feeding guide gates and telescopic rods, the dynamic opening and closing of the feed inlet is realized, the feeding speed is adjusted, and idling and blockage are avoided.
The adjustable feed inlet size ensures matching feed speed, avoids idling and blockage, and improves the accuracy of feed control and the service life of the equipment.
Smart Images
Figure CN223915476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of roll type sand making machine, especially a double-gate four-bar unloading structure of a roll mill. BACKGROUND
[0002] The roll type sand making machine usually includes fixed rollers and movable rollers, and the material is fed from above the two rollers, is continuously taken into the roller by the extrusion roller, and is discharged from the machine with ideal particle size. The stone is crushed into sand by the relative movement of the two rollers. The patent number CN202021220681X of the Chinese patent document was granted on April 13, 2021, and the "roll type sand making machine" was announced. The application includes a vertical frame, a first rolling roller, a second rolling roller and a driving motor, a rolling channel is formed between the first rolling roller and the second rolling roller, the first rolling roller is rotatably connected to the frame, the driving motor is connected to the frame, the driving motor is used to drive the first rolling roller to rotate, the frame is provided with a plurality of supporting feet, the supporting feet include a bottom plate, a raised plate, a top plate and a stand column arranged in sequence from bottom to top, and the bottom plate is provided with a positioning ring. The deficiency of the roll type sand making machine in the prior art is that the size of the feed inlet remains unchanged, so that the feeding speed cannot be adjusted as needed. SUMMARY
[0003] The utility model aims at providing a double-gate four-bar unloading structure of a roll mill with adjustable feeding speed, solving the problem that the size of the feed inlet of the existing sand making machine cannot be adjusted to meet the need of feeding speed adjustment.
[0004] The above technical problems are solved by the following technical solution: a double-gate four-bar feeding structure for a roller mill, including a frame and a feed cylinder located above two grinding cylinders on the frame. The feed cylinder contains a left movable feeding guide gate hinged to the frame and a right movable feeding guide gate hinged to the frame. The left movable feeding guide gate is hinged to one end of a left first connecting rod, and the other end of the left first connecting rod is hinged to one end of a left second connecting rod and one end of a left telescopic rod. The other ends of the left second connecting rod and the left telescopic rod are both hinged to the frame. The left first link, the left second link, and one end of each link are connected to the frame to form a four-bar linkage. The right moving feed guide gate is hinged to one end of the right first link. The other end of the right first link is hinged to one end of the right second link and one end of the right telescopic rod. The other ends of the right second link and the right telescopic rod are both hinged to the frame. The left and right moving feed guide gates form a dynamic feed inlet. In use, the left and right moving feed guide gates are driven to swing by the left and right telescopic rods, thereby changing the opening and closing size of the dynamic feed inlet. This controls the feeding speed, prevents the roller mill from running dry without material, and avoids blockages in the feed cylinder. Without material, the feed cylinder is easily damaged when material is fed again, and this also prevents jamming when material is encountered. The existing feeds are all of constant size, which cannot solve the above problems.
[0005] Preferably, the feed cylinder is equipped with a right-feeding guide gate and a left-feeding guide gate. The right-feeding guide gate is located above the right-moving feeding guide gate, with its lower end lower than the lower end of the left-moving feeding guide gate and extending to the left beyond the right-feeding guide gate. The left-feeding guide gate is located above the left-moving feeding guide gate, with its lower end lower than the lower end of the left-moving feeding guide gate and extending to the right beyond the left-feeding guide gate. A static feed inlet is formed between the right-feeding guide gate and the left-feeding guide gate. This design reduces the effort required to drive the left and right-moving feeding guide gates to swing.
[0006] Preferably, the frame is hinged to the left movable feeding guide gate via a left first forward-backward hinge axis. The left movable feeding guide gate is hinged to the left first connecting rod via a left second forward-backward hinge axis. The left first connecting rod is hinged to the left second connecting rod and the left telescopic rod via a left third forward-backward hinge axis. The left second connecting rod is hinged to the frame via a left fourth forward-backward hinge axis. The left telescopic rod is hinged to the frame via a left fifth forward-backward hinge axis. The frame is also hinged to the right movable feeding guide gate via a right first forward-backward hinge axis. The right movable feeding guide gate is hinged to the right first connecting rod via a right second forward-backward hinge axis. The right first connecting rod is hinged to the right second connecting rod and the right telescopic rod via a right third forward-backward hinge axis. The right second connecting rod is hinged to the frame via a right fourth forward-backward hinge axis. The right telescopic rod is hinged to the frame via a right fifth forward-backward hinge axis. This design minimizes wobbling during the movable feeding guide gate's swing, improving the accuracy of feeding control.
[0007] Preferably, the telescopic rod is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder; the right telescopic rod is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.
[0008] Preferably, the hinge point between the left first link and the left moving feeding guide gate is located above the hinge point between the left moving feeding guide gate and the frame, and the hinge point between the right first link and the right moving feeding guide gate is located above the hinge point between the right moving feeding guide gate and the frame. This design allows for a longer lever arm for the telescopic rod drive, thereby reducing the force required to open and close the moving feeding guide gate.
[0009] Preferably, the frame has a left longitudinal beam, with a right connecting lug on the right side and a left connecting lug on the left side. The left movable feed guide gate is hinged to the right connecting lug of the left longitudinal beam, and the left second connecting rod is hinged to the left connecting lug of the left longitudinal beam. The frame also has a right longitudinal beam, with a right connecting lug on the right side and a left connecting lug on the left side. The right movable feed guide gate is hinged to the left connecting lug of the right longitudinal beam, and the right second connecting rod is hinged to the right connecting lug of the right longitudinal beam. This design prevents damage to the connection between the movable feed guide gate and the frame.
[0010] Preferably, the left second link is a curved rod structure bending towards the left longitudinal beam, and the right second link is a curved rod structure bending towards the right longitudinal beam. This avoids interference between the longitudinal beam and the second link while maintaining a compact structure.
[0011] Preferably, the left longitudinal beam includes a left longitudinal flat tube, an upper left longitudinal strip fixed to the upper surface of the left longitudinal flat tube, and a lower left longitudinal strip fixed to the lower surface of the left longitudinal flat tube. The left connecting lug of the left longitudinal beam is simultaneously connected to the left longitudinal flat tube, the upper left longitudinal strip, and the lower left longitudinal strip. The right longitudinal beam includes a right longitudinal flat tube, an upper right longitudinal strip fixed to the upper surface of the right longitudinal flat tube, and a lower right longitudinal strip fixed to the lower surface of the right longitudinal flat tube. The right connecting lug of the right longitudinal beam is simultaneously connected to the right longitudinal flat tube, the upper right longitudinal strip, and the lower right longitudinal strip. The connecting lug can strengthen the longitudinal beam, thereby increasing its strength while reducing its weight.
[0012] The beneficial effect of this utility model is that the size of the feed inlet can be adjusted, thereby changing the feeding speed by changing the size of the feed inlet. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a partial schematic diagram of the present invention.
[0015] In the diagram: 1. Frame; 2. Feed cylinder; 3. Left longitudinal beam; 4. Right connecting lug of left longitudinal beam; 5. Left longitudinal flat tube; 6. Upper left longitudinal strip; 7. Lower left longitudinal strip; 8. First left front-to-back hinge shaft; 9. Left moving feed guide gate; 10. Second left front-to-back hinge shaft; 11. First left connecting rod; 12. Third left front-to-back hinge shaft; 13. Second left connecting rod; 14. Left telescopic rod; 15. Fourth left front-to-back hinge shaft; 16. Fifth left front-to-back hinge shaft; 33. Left feed guide gate; 17. Right longitudinal beam; 18. Right longitudinal... 19. Right connecting lug of beam section, 20. Left connecting lug of right longitudinal beam section, 21. Right longitudinal flat tube, 22. Right upper longitudinal strip, 23. Right lower longitudinal strip, 24. Right first front-to-back hinge shaft, 25. Right moving material guide gate, 26. Right second front-to-back hinge shaft, 27. Right first connecting rod, 28. Right third front-to-back hinge shaft, 29. Right second connecting rod, 30. Right fourth front-to-back hinge shaft, 31. Right material guide gate, 32. Right fifth front-to-back hinge shaft, 34. Static feed inlet, 35. Dynamic feed inlet, 36. Compactor cylinder, 58. Detailed Implementation
[0016] 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.
[0017] See Figure 1 and Figure 2A double-gate four-bar feeding structure for a roller mill includes a frame 1 and a feed cylinder 2 positioned above two rolling cylinders 58 on the frame. The frame has a left longitudinal beam 3, with a right connecting lug 4 on the right side and a left connecting lug 5 on the left side. The left longitudinal beam includes a left longitudinal flat tube 6, an upper left longitudinal strip 7 fixed to the upper surface of the left longitudinal flat tube, and a lower left longitudinal strip 8 fixed to the lower surface of the left longitudinal flat tube. The left connecting lug of the left longitudinal beam is simultaneously connected to the left longitudinal flat tube, the upper left longitudinal strip, and the lower left longitudinal strip. A left movable feeding guide gate 10 is provided inside the feed cylinder, hinged to the right connecting lug of the left longitudinal beam via a left first forward / backward hinge shaft 9. The left moving feed guide gate is hinged to the left first connecting rod 12 via the left second forward / backward hinge shaft 11. The left first connecting rod is hinged to the left second connecting rod 14 and the left telescopic rod 15 via the left third forward / backward hinge shaft 13. The left second connecting rod is hinged to the left connecting lug of the left longitudinal beam via the left fourth forward / backward hinge shaft 16. The left telescopic rod is hinged to the frame via the left fifth forward / backward hinge shaft 33. The moving feed guide gate, the left first connecting rod, and one end of the left second connecting rod are connected to the frame to form a four-bar linkage. The left telescopic rod is an electric cylinder, hydraulic cylinder, or pneumatic cylinder; in this embodiment, it is an electric cylinder. The hinge point between the left first connecting rod and the left moving feed guide gate is located above the hinge point between the left moving feed guide gate and the frame. The left second connecting rod is a curved rod structure bending towards the left longitudinal beam. A left feed guide gate 17 is estimated to be located inside the feed cylinder. The left feeding guide gate is located above the left moving feeding guide gate. The lower end of the left moving feeding guide gate is lower than the lower end of the left feeding guide gate, and the lower end of the left moving feeding guide gate extends to the right beyond the left feeding guide gate.
[0018] The frame is equipped with a right longitudinal beam 18, with a right connecting lug 19 on the right side and a left connecting lug 20 on the left side. The right longitudinal beam includes a right longitudinal flat tube 21, an upper right longitudinal strip 22 fixed to the upper surface of the right longitudinal flat tube, and a lower right longitudinal strip 23 fixed to the lower surface of the right longitudinal flat tube. The right connecting lug of the right longitudinal beam is connected to the right longitudinal flat tube, the upper right longitudinal strip, and the lower right longitudinal strip. The feed cylinder is equipped with a right movable feeding guide gate 25, which is hinged to the left connecting lug of the right longitudinal beam via a right first forward and backward hinge shaft 24. The right movable feeding guide gate is hinged to the right first connecting rod 27 via a right second forward and backward hinge shaft 26. The right first connecting rod is hinged to the right second connecting rod 29 and the right telescopic rod 30 via a right third forward and backward hinge shaft 28. The right second connecting rod is hinged to the right connecting lug of the right longitudinal beam via a right fourth forward and backward hinge shaft 31. The moving feed guide gate, the first right connecting rod, one end of the second right connecting rod, and the frame form a four-bar linkage. The right telescopic rod is an electric cylinder, hydraulic cylinder, or pneumatic cylinder. The hinge point between the first right connecting rod and the right moving feed guide gate is located above the hinge point between the right moving feed guide gate and the frame. The second right connecting rod is a curved rod structure bending towards the right longitudinal beam. A right feed guide gate 32 is estimated to be located inside the feed cylinder. The right feed guide gate is located above the right moving feed guide gate, with its lower end lower than the lower end of the right moving feed guide gate, and its lower end extending to the left beyond the right feeding guide gate. The right telescopic rod and the fifth right forward / backward hinge shaft 34 are hinged together with the frame.
[0019] A static feed inlet 35 is formed between the right and left feed guide gates. A dynamic feed inlet 36 is formed between the left and right moving feed guide gates.
[0020] In use, the left and right telescopic rods drive the left and right moving guide gates to swing, thereby changing the opening and closing size of the dynamic feed port and controlling the feeding speed.
[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0022] 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 double-gate four-bar feeding structure for a roller mill, comprising a frame and a feed cylinder disposed above two grinding cylinders on the frame, characterized in that, The feed cylinder is equipped with a left movable discharge guide gate hinged to the frame and a right movable discharge guide gate hinged to the frame. The left movable discharge guide gate is hinged to one end of the left first connecting rod, the other end of the left first connecting rod is hinged to one end of the left second connecting rod and one end of the left telescopic rod, and the other ends of the left second connecting rod and the left telescopic rod are both hinged to the frame. The movable discharge guide gate, one end of the left first connecting rod, one end of the left second connecting rod, and the frame form a four-bar linkage structure. The right moving feed guide gate is hinged to one end of the right first link. The other end of the right first link is hinged to one end of the right second link and one end of the right telescopic rod. The other ends of the right second link and the right telescopic rod are both hinged to the frame. The moving feed guide gate, the right first link, the right second link, and one end of the frame are connected to form a four-bar linkage structure. The other end of the right telescopic rod is hinged to the frame. A dynamic feed inlet is formed between the left moving feed guide gate and the right moving feed guide gate.
2. The double-gate four-bar feeding structure for a roller mill according to claim 1, characterized in that, The feed cylinder is equipped with a right discharge guide gate and a left discharge guide gate. The right discharge guide gate is located above the right moving discharge guide gate, and the lower end of the right moving discharge guide gate is lower than the lower end of the right discharge guide gate. The lower end of the right moving discharge guide gate extends to the left beyond the right discharge guide gate. The left discharge guide gate is located above the left moving discharge guide gate, and the lower end of the left moving discharge guide gate is lower than the lower end of the left discharge guide gate. The lower end of the left moving discharge guide gate extends to the right beyond the left discharge guide gate. A static feed inlet is formed between the right discharge guide gate and the left discharge guide gate.
3. A double-gate four-bar feeding structure for a roller mill according to claim 1 or 2, characterized in that, The frame is hinged to the left moving feed guide gate via a left first forward-backward hinge axis. The left moving feed guide gate is hinged to the left first connecting rod via a left second forward-backward hinge axis. The left first connecting rod is hinged to the left second connecting rod and the left telescopic rod via a left third forward-backward hinge axis. The left second connecting rod is hinged to the frame via a left fourth forward-backward hinge axis. The left telescopic rod is hinged to the frame via a left fifth forward-backward hinge axis. The frame is hinged to the right moving feed guide gate via a right first forward-backward hinge axis. The right moving feed guide gate is hinged to the right first connecting rod via a right second forward-backward hinge axis. The right first connecting rod is hinged to the right second connecting rod and the right telescopic rod via a right third forward-backward hinge axis. The right second connecting rod is hinged to the frame via a right fourth forward-backward hinge axis. The right telescopic rod is hinged to the frame via a right fifth forward-backward hinge axis.
4. A double-gate four-bar feeding structure for a roller mill according to claim 1 or 2, characterized in that, The left telescopic rod is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder, and the right telescopic rod is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.
5. A double-gate four-bar feeding structure for a roller mill according to claim 1 or 2, characterized in that, The hinge point between the left first link and the left moving unloading guide gate is located above the hinge point between the left moving unloading guide gate and the frame, and the hinge point between the right first link and the right moving unloading guide gate is located above the hinge point between the right moving unloading guide gate and the frame.
6. A double-gate four-bar feeding structure for a roller mill according to claim 1 or 2, characterized in that, The frame is provided with a left longitudinal beam, and the right side of the left longitudinal beam is provided with a right connecting lug and the left side is provided with a left connecting lug. The left moving feed guide gate is hinged to the right connecting lug of the left longitudinal beam, and the left second link is hinged to the left connecting lug of the left longitudinal beam. The frame is provided with a right longitudinal beam, and the right side of the right longitudinal beam is provided with a right connecting lug and the left side is provided with a left connecting lug. The right moving feed guide gate is hinged to the left connecting lug of the right longitudinal beam, and the right second link is hinged to the right connecting lug of the right longitudinal beam.
7. The double-gate four-bar feeding structure for a roller mill according to claim 6, characterized in that, The left second link is a curved rod structure that bends toward the left longitudinal beam, and the right second link is a curved rod structure that bends toward the right longitudinal beam.
8. The double-gate four-bar feeding structure for a roller mill according to claim 6, characterized in that, The left longitudinal beam includes a left longitudinal flat tube, an upper left longitudinal strip fixed to the upper surface of the left longitudinal flat tube, and a lower left longitudinal strip fixed to the lower surface of the left longitudinal flat tube. The left connecting lug of the left longitudinal beam is simultaneously connected to the left longitudinal flat tube, the upper left longitudinal strip, and the lower left longitudinal strip. The right longitudinal beam includes a right longitudinal flat tube, an upper right longitudinal strip fixed to the upper surface of the right longitudinal flat tube, and a lower right longitudinal strip fixed to the lower surface of the right longitudinal flat tube. The right connecting lug of the right longitudinal beam is simultaneously connected to the right longitudinal flat tube, the upper right longitudinal strip, and the lower right longitudinal strip.