A roller press that is easy to maintain

Abstract

This application relates to a roller press that is easy to maintain, and pertains to the technical field of roller presses. The roller press includes a base; a first roller assembly including a first pressure roller, first support seats rotatably connected to both ends of the first pressure roller, and a first roller pressing sleeve sleeved outside the first pressure roller, the first support seats being slidably connected to the base along the axial direction of the first pressure roller; a second roller assembly including a second pressure roller, second support seats rotatably connected to both ends of the second pressure roller, a sliding seat slidably connected to the bottom end of the second support seats along the axial direction of the second pressure roller, and a second roller pressing sleeve sleeved outside the second pressure roller, the sliding seat being slidably connected to the base in a direction horizontal and perpendicular to the axis of the second pressure roller; and a locking assembly disposed between the first support seats and the base for locking the relative position of the first support seats and the base. This application has the effect of making the maintenance of the roller press more convenient.

Description

Technical Field

[0001] This application relates to the technical field of roller presses, and in particular to a roller press that is easy to maintain. Background Technology

[0002] A roller press, also known as an extrusion mill, roller mill, or double roller mill, is a new type of energy-saving cement grinding equipment developed internationally in the mid-1980s. It utilizes two counter-rotating rollers to compress materials under high pressure, achieving both crushing and grinding effects. In cement production, roller presses primarily replace traditional ball mill pre-grinding systems, featuring low energy consumption, high efficiency, low steel consumption, and low noise. After being extruded by a roller press, the material contains 20-35% fine particles (0.08mm) and 65-85% particles smaller than 2mm. The internal structure of the particles is filled with micro-cracks due to compression, greatly improving their grindability.

[0003] During daily use, roller presses inevitably experience wear on the rollers, affecting the grinding effect. Maintenance personnel need to remove the rollers for replacement or to weld a wear-resistant layer onto the roller surface. However, both the disassembly and installation processes are complex and cumbersome, affecting normal production operations. Summary of the Invention

[0004] To make the maintenance of the roller press more convenient, this application provides a roller press that is easy to maintain.

[0005] The roller press provided in this application, which is easy to maintain, adopts the following technical solution:

[0006] A roller press that is easy to maintain includes:

[0007] Base;

[0008] The first roller assembly includes a first pressure roller, a first support seat rotatably connected to both ends of the first pressure roller, and a first roller sleeve sleeved outside the first pressure roller. The first support seat is slidably connected to the base along the axial direction of the first pressure roller.

[0009] The second roller assembly includes a second pressure roller, a second support seat rotatably connected to both ends of the second pressure roller, a sliding seat slidably connected to the bottom end of the second support seat along the axial direction of the second pressure roller, and a second roller pressure sleeve sleeved outside the second pressure roller. The sliding seat is slidably connected to the base in a direction that is horizontal and perpendicular to the axis of the second pressure roller.

[0010] A snap-fit ​​assembly is disposed between the first support and the base to lock the relative positions of the first support and the base; it is also disposed between the second support and the sliding base to lock the relative positions of the second support and the sliding base.

[0011] The first hydraulic cylinder is located between the base and the sliding seat, and is used to move the sliding seat to adjust the distance between the first pressure roller and the second pressure roller.

[0012] By adopting the above technical solution, the first roller sleeve on the first pressure roller is used to directly contact the material. After wear occurs, the first roller sleeve can be replaced separately. The second roller sleeve on the second pressure roller works on the same principle. Compared with the traditional welding repair method, the maintenance time can be shortened. At the same time, the sliding support seat makes it easier to remove the first or second roller group from the base. The sliding seat also allows the gap between the two pressure rollers to be adjusted normally, which improves the maintenance efficiency of the roller press.

[0013] Optionally, the base is provided with a first guide rail for the first support seat to slide on; the sliding seat is provided with a second guide rail for the second support seat to slide on.

[0014] By adopting the above technical solution, the first guide rail can facilitate the sliding of the first support seat, and the second guide rail can facilitate the sliding of the second support seat, making the maintenance of the roller press more convenient and improving maintenance efficiency.

[0015] Optionally, a second hydraulic cylinder is provided between the second support and the base.

[0016] By adopting the above technical solution, the second hydraulic cylinder can push the upper part of the side wall of the second support seat and move the second support seat together with the first hydraulic cylinder, so that the second pressure roller is subjected to more uniform force during operation.

[0017] Optionally, the cylinder body end of the second hydraulic cylinder is connected to the base, the piston rod end is connected to a push-pull plate, and the side wall of the second support seat is provided with a sliding groove for the push-pull plate to slide. The push-pull plate is slidably connected to the second support seat along the axial direction of the second pressure roller.

[0018] By adopting the above technical solution, the push-pull plate slides into the slide groove, and the extension and retraction of the second hydraulic cylinder can drive the second support seat to slide. When the second support seat slides outward and the push-pull plate disengages from the second support seat, the connection between the second support seat and the second hydraulic cylinder can be released without affecting the use of the second hydraulic cylinder.

[0019] Optionally, the snap-fit ​​component includes:

[0020] Multiple levers are vertically slidably connected to the top of the sliding base.

[0021] The synchronizing screw is rotatably connected inside the sliding seat;

[0022] The lifting block is slidably connected in the sliding seat and threadedly connected to the synchronous screw. One end facing the locking rod has an inclined surface that abuts against the locking rod.

[0023] The lifting block is provided in multiple parts, and it abuts against each of the locking rods in sequence.

[0024] By adopting the above technical solution, when the synchronous screw rotates, the lifting block on the synchronous screw will move synchronously in one direction, and the inclined plane will lift the clamping rod and insert it into the second support seat, locking the positional relationship between the sliding seat and the second support seat, ensuring that the second support seat will not detach from the sliding seat when the roller press is working normally.

[0025] Optionally, the snap-fit ​​assembly further includes a first bevel gear connected to the synchronizing screw, a second bevel gear rotatably connected to the sliding seat, and a handle coaxially connected to the second bevel gear, wherein the first bevel gear meshes with the second bevel gear.

[0026] By adopting the above technical solution, the first bevel gear and the second bevel gear can play a transmission role. The handle allows the operator to easily adjust the synchronous screw. Turning the handle will make the synchronous screw rotate, which is convenient and quick.

[0027] Optionally, the snap-fit ​​assembly further includes a spring sleeved on the snap rod, the snap rod having a protruding ring, and the spring being disposed between the top of the protruding ring and the sliding seat.

[0028] By adopting the above technical solution, the spring continuously pushes the convex ring, pushing the locking rod into the sliding seat. When the lifting block does not lift the locking rod, the locking rod remains in the sliding seat, so that the sliding of the second support seat relative to the sliding seat is not affected and the sliding is normal.

[0029] Optionally, the second roller-pressed sleeve includes:

[0030] Multiple roller presses are provided, which are spliced ​​together along the circumferential side wall of the second press roller to form a complete cylinder, which is inserted into the second press roller, and has pressing grooves at both ends;

[0031] Two hoop rings are provided, which are respectively fitted onto both ends of the roller pressing plate and inserted into the pressing groove.

[0032] By adopting the above technical solution, multiple roller pressing plates are provided, which can be replaced when any roller pressing plate is worn too much, while the remaining roller pressing plates can continue to be used, thus improving the utilization rate of roller pressing plates. The clamping ring firmly fixes the position of the roller pressing plates, making the second roller pressing sleeve more robust and durable as a whole.

[0033] Optionally, the outer circumferential walls of the roller sheet and the hoop are provided with breaking nails.

[0034] By adopting the above technical solution, the crushing of nail columns can improve the grinding effect.

[0035] Optionally, the hoop is provided with multiple inserts, which are embedded in the second pressure roller and bolted to the second pressure roller.

[0036] By adopting the above technical solution, the insert plate can be embedded on the second pressure roller to make the hoop ring installation more secure, the force transmission is more efficient when the second pressure roller drives the hoop ring to rotate, and the bolt connection makes the hoop ring installation more convenient.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. The first roller sleeve on the first roller is used to directly contact the material. After wear occurs, the first roller sleeve can be replaced separately. The second roller sleeve on the second roller works on the same principle. Compared with the traditional welding repair method, the maintenance time can be shortened. At the same time, the sliding support makes it easier to remove the first roller group or the second roller group from the base. The sliding seat allows the gap between the two rollers to be adjusted normally, which improves the maintenance efficiency of the roller press.

[0039] 2. When the push-pull plate slides into the groove, the extension and retraction of the second hydraulic cylinder can drive the second support seat to slide. When the second support seat slides outward, causing the push-pull plate to disengage from the second support seat, the connection between the second support seat and the second hydraulic cylinder can be released without affecting the use of the second hydraulic cylinder.

[0040] 3. When the synchronous screw rotates, the lifting block on the synchronous screw will move synchronously in one direction, and the inclined plane will lift the locking rod and insert it into the second support seat, locking the positional relationship between the sliding seat and the second support seat, ensuring that the second support seat will not detach from the sliding seat when the roller press is working normally;

[0041] 4. Multiple roller pressing plates are provided, which can be replaced when any roller pressing plate is worn too much, while the remaining roller pressing plates can continue to be used, thus improving the utilization rate of roller pressing plates. The clamping ring firmly fixes the position of the roller pressing plates, making the second roller pressing sleeve more robust and durable as a whole. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0043] Figure 2 This is a schematic diagram showing the positional relationship between the first pressure roller and the second pressure roller in an embodiment of this application;

[0044] Figure 3 This is a schematic diagram of the connection structure of the snap-fit ​​component according to an embodiment of this application;

[0045] Figure 4 This is an exploded view of the second pressure roller and the second roller pressure sleeve in the embodiments of this application;

[0046] In the diagram, 1 is the base; 11 is the first guide rail; 2 is the first roller group; 21 is the first pressure roller; 22 is the first support seat; 23 is the first roller pressing sleeve; 3 is the second roller group; 31 is the second pressure roller; 32 is the second support seat; 321 is the slide groove; 33 is the sliding seat; 331 is the second guide rail; 34 is the second roller pressing sleeve; 341 is the roller pressing plate; 3411 is the pressing groove; 342 is the hoop ring; 3421 is the insert plate; 4 is the snap-fit ​​assembly; 41 is the snap rod; 411 is the convex ring; 42 is the synchronous screw; 43 is the lifting block; 431 is the inclined plane; 44 is the first bevel gear; 45 is the second bevel gear; 46 is the handle; 47 is the spring; 5 is the first hydraulic cylinder; 6 is the second hydraulic cylinder; 61 is the push-pull plate. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0048] This application proposes a roller press that is easy to maintain, referring to... Figure 1 and Figure 2 The system includes a base 1, a first roller group 2, a second roller group 3, a snap-fit ​​assembly 4, a first hydraulic cylinder 5, and a second hydraulic cylinder 6. The first roller group 2 is mounted on the machine base and includes a first pressure roller 21 and a first support seat 22, with the first support seat 22 slidably connected to the base 1. The second roller group 3 is mounted on the machine base and includes a sliding seat 33, a second support seat 32, and a second pressure roller 31, with the second support seat 32 slidably connected to the sliding seat 33. The first hydraulic cylinder 5 is located between the sliding seat 33 and the base 1. The second hydraulic cylinder 6 is located between the second support seat 32 and the machine base.

[0049] The first roller sleeve 23 on the first roller 21 is used to directly contact the material. After wear occurs, the first roller sleeve 23 can be replaced separately. The second roller sleeve 34 on the second roller 31 works on the same principle. Compared with the traditional welding repair method, the maintenance time can be shortened. At the same time, the sliding support seat makes it easier to remove the first roller group 2 or the second roller group 3 from the base 1. The sliding seat 33 allows the gap between the two rollers to be adjusted normally, which improves the maintenance efficiency of the roller press.

[0050] The base 1 is set on the working ground, with the bottom end for discharging the ground material and the top end for feeding. The first roller group 2 and the second roller group 3 are both mounted on the base 1. The first roller group 2 includes a first pressure roller 21, a first support seat 22, and a first roller pressing sleeve 23. The first support seat 22 is rotatably connected to both ends of the first pressure roller 21 and slidably connected to the base 1, and can slide along the axial direction of the first pressure roller 21. The first roller pressing sleeve 23 is sleeved on the first pressure roller 21 and is used to directly contact and grind the material. The base 1 is provided with a first guide rail 11, which is slidably connected to the first support seat 22. In this embodiment, three first guide rails 11 are provided.

[0051] The second roller assembly 3 includes a second pressure roller 31, a second support seat 32, a sliding seat 33, and a second roller pressing sleeve 34. The sliding seat 33 is slidably mounted on the base 1, with the sliding direction horizontal and perpendicular to the central axis of the first pressure roller 21. The second support seat 32 is slidably connected to the sliding seat 33, and a second guide rail 331 is provided on the sliding seat 33. The second support seat 32 is slidably connected to the second guide rail 331, allowing the second support seat 32 to slide along the axial direction of the second pressure roller 31. In this embodiment, three second guide rails 331 are provided. The second roller pressing sleeve 34 is sleeved on the second pressure roller 31.

[0052] The first hydraulic cylinder 5 is positioned between the sliding seat 33 and the base 1, used to move the sliding seat 33, thereby adjusting the distance between the first roller group 2 and the second roller group 3. The cylinder body of the second hydraulic cylinder 6 is mounted on the base 1, and a push-pull plate 61, which is rectangular, is welded to the piston rod end. The second support seat 32 has a sliding groove 321. The push-pull plate 61 slides into the sliding groove 321, and the extension and retraction of the second hydraulic cylinder 6 drives the second support seat 32 to slide. When the second support seat 32 slides outward, causing the push-pull plate 61 to disengage from the second support seat 32, the connection between the second support seat 32 and the second hydraulic cylinder 6 is released, without affecting the use of the second hydraulic cylinder 6.

[0053] Reference Figure 1 and Figure 3The locking assembly 4 includes a locking rod 41, a synchronizing screw 42, a lifting block 43, a first bevel gear 44, a second bevel gear 45, a handle 46, and a spring 47. The locking rod 41 is slidably connected to the top of the sliding seat 33 and extends upward through the second guide rail 331, inserting into the second support seat 32 to lock the relative position between the second support seat 32 and the sliding seat 33. A protruding ring 411 is provided on the circumferential side wall of the locking rod 41. The synchronizing screw 42 is rotatably connected within the sliding seat 33, with its central axis horizontal. Three lifting blocks 43 are provided, slidably connected within the sliding seat 33, and threadedly connected to the synchronizing screw 42. One section of the lifting block 43 has an inclined surface 431 for abutting against the locking rod 41. The first bevel gear 44 is coaxially keyed to the synchronizing screw 42, and the second bevel gear 45 is rotatably connected within the sliding seat 33, meshing with the first bevel gear 44. The handle 46 is detachably connected to the second bevel gear 45. Spring 47 is sleeved on the locking rod 41 and positioned between the top of the convex ring 411 and the sliding seat 33. Spring 47 continuously pushes the convex ring 411, pushing the locking rod 41 into the sliding seat 33. When the lifting block 43 does not lift the locking rod 41, it keeps the locking rod 41 in the sliding seat 33, so that the sliding of the second support seat 32 relative to the sliding seat 33 is not affected and can slide normally.

[0054] The first bevel gear 44 and the second bevel gear 45 provide transmission. The handle 46 allows the operator to easily adjust the synchronizing screw 42; turning the handle 46 rotates the synchronizing screw 42, which is convenient and quick. When the synchronizing screw 42 rotates, the lifting block 43 on the synchronizing screw 42 moves synchronously in one direction. The inclined surface 431 then lifts the locking rod 41 and inserts it into the second support seat 32, locking the positional relationship between the sliding seat 33 and the second support seat 32, ensuring that the second support seat 32 will not disengage from the sliding seat 33 when the roller press is working normally.

[0055] A snap-fit ​​assembly 4 is also provided between the base 1 and the first support 22. The structure is the same as that of the snap-fit ​​assembly 4 between the sliding seat 33 and the second support 32, and will not be described in detail here.

[0056] Reference Figure 2 and Figure 4The second roller pressing sleeve 34 includes roller pressing plates 341 and clamping rings 342. The roller pressing plates 341 are inserted into the second pressure roller 31, and multiple roller pressing plates 341 are joined together to form a complete cylindrical body, which is fitted over the second pressure roller 31. Each roller pressing plate 341 has a pressing groove 3411 at both ends. Two clamping rings 342 are provided, respectively fitted onto both ends of the roller pressing plate 341 and inserted into the pressing grooves 3411. The clamping rings 342 also have multiple inserts 3421, which are embedded in the second pressure roller 31 and bolted to it. The multiple roller pressing plates 341 allow for replacement when any one plate becomes heavily worn, while the remaining plates can continue to be used, improving the utilization rate of the roller pressing plates 341. The clamping rings 342 firmly fix the position of the roller pressing plates 341, making the second roller pressing sleeve 34 more robust and durable. The insert plate 3421, embedded in the second pressure roller 31, makes the installation of the hoop 342 more secure. When the second pressure roller 31 drives the hoop 342 to rotate, the force transmission is more efficient. The bolt connection makes the installation of the hoop 342 more convenient. Both the roller plate 341 and the hoop 342 are equipped with crushing spikes to improve powder efficiency and effect.

[0057] The structure and connection relationship of the first pressure roller 21 and the first pressure sleeve 23 are exactly the same as those of the second pressure roller 31 and the second pressure sleeve 34, and will not be described again.

[0058] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roll press facilitating maintenance, characterized by, Comprise: Base (1); First roller group (2), comprising a first compression roller (21), a first support seat (22) rotatably connected to both ends of the first compression roller (21), and a first roller sleeve (23) sleeved outside the first compression roller (21), the first support seat (22) is slidably connected to the base (1) along the axial direction of the first compression roller (21); Second roller group (3), comprising a second compression roller (31), a second support seat (32) rotatably connected to both ends of the second compression roller (31), a sliding seat (33) slidably connected to the bottom end of the second support seat (32) along the axial direction of the second compression roller (31), and a second roller sleeve (34) sleeved outside the second compression roller (31), the sliding seat (33) is slidably connected with the base (1) along the direction perpendicular to the axial direction of the second compression roller (31); The clamping assembly (4) is arranged between the first support seat (22) and the base (1) for locking the relative position of the first support seat (22) and the base (1); also arranged between the second support seat (32) and the sliding seat (33), for locking the relative position of the second support seat (32) and the sliding seat (33); The clamping assembly (4) comprises: Clamping rod (41), vertically slidably connected to the top end of the sliding seat (33), provided with a plurality of; Synchronous screw (42), rotatably connected in the sliding seat (33); Jack block (43), slidably connected in the sliding seat (33), threadedly connected with the synchronous screw (42), one end towards the clamping rod (41) is provided with an inclined surface (431) abutting the clamping rod (41); The jack block (43) is provided with a plurality of, sequentially abutting each clamping rod (41); The clamping assembly (4) further comprises a first bevel gear (44) connected with the synchronous screw (42), a second bevel gear (45) rotatably connected on the sliding seat (33), and a handle (46) coaxially connected with the second bevel gear (45), the first bevel gear (44) engages the second bevel gear (45); The clamping assembly (4) further comprises a spring (47) sleeved on the clamping rod (41), the clamping rod (41) is provided with a protruding ring (411), and the spring (47) is arranged between the top end of the protruding ring (411) and the sliding seat (33); First hydraulic cylinder (5), arranged between the base (1) and the sliding seat (33), for moving the sliding seat (33) to adjust the distance between the first compression roller (21) and the second compression roller (31).

2. A roll press according to claim 1, wherein The base (1) is provided with a first guide rail (11) for the sliding of the first support seat (22); the sliding seat (33) is provided with a second guide rail (331) for the sliding of the second support seat (32).

3. A roll press for facilitating maintenance in accordance with claim 1, wherein The second support seat (32) and the base (1) are provided with a second hydraulic cylinder (6).

4. A roll press for facilitating maintenance in accordance with claim 3, wherein The cylinder end of the second hydraulic cylinder (6) is connected with the base (1), the piston rod end is connected with a push-pull plate (61), the side wall of the second support seat (32) is provided with a sliding groove (321) for the sliding of the push-pull plate (61), and the push-pull plate (61) is slidably connected with the second support seat (32) along the axial direction of the second compression roller (31).

5. A roll press for facilitating maintenance in accordance with claim 1, wherein The second roller sleeve (34) comprises: Rolling pieces (341) are provided in plurality, and are spliced into a complete cylinder along the circumferential side wall of the second compression roller (31), and are inserted into the second compression roller (31), and two ends are provided with compression grooves (3411); The hoop rings (342) are provided in two, and are respectively sleeved on the two ends of the rolling pieces (341), and are inserted into the compression grooves (3411).

6. A roll press for facilitating maintenance in accordance with claim 5, wherein The circumferential outer side wall of the rolling piece (341) and the hoop ring (342) is provided with a broken nail column.

7. A roll press for facilitating maintenance in accordance with claim 5, wherein The hoop ring (342) is provided with a plurality of panels (3421), and the panel (3421) is embedded on the second compression roller (31) and is bolted with the second compression roller (31).

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