Rapidly turnable rocker arm device

Abstract

The present application relates to vertical roller mill technical field, specifically to a kind of quick turning out rocker arm device, including stand and the upper end of stand is rotatably connected with swing arm, the free end of swing arm is connected with roll shaft arm and roll shaft arm is pitch deflection relative to swing arm;Roll shaft arm is connected with grinding roller assembly and drives grinding roller assembly synchronous pitch, grinding roller assembly is also provided with locking assembly matched with swing arm, locking assembly is used to lock grinding roller assembly with swing arm and keep fixed;The lower of roll shaft arm is also provided with drive assembly, and the drive assembly is used to exert longitudinal deflection force to roll shaft arm.The present application is simplified by the structure of stand, reduces connecting fastener, and is adjusted to roll shaft assembly by the cooperation of swing arm, roll shaft arm, more flexible and convenient, fast and efficient in specific use process.

Description

Technical Field

[0001] This invention relates to the field of vertical roller mill technology, and more specifically to a device for quickly flipping out a rocker arm. Background Technology

[0002] Vertical roller mill technology has a history of over 100 years. Currently, the mainstream loading devices are represented by the LM orthogonal shaft structure from Loesche GmbH (Germany) and the MVR parallel shaft structure from Flünchen GmbH (Germany). The LM orthogonal shaft structure means that the swing arm's rotation axis and the grinding roller axis are arranged at a 90° angle during operation, while the MVR parallel shaft structure means that the swing arm's rotation axis and the grinding roller axis are arranged parallel to each other. The LM orthogonal shaft structure allows for quick removal of the grinding roller components during maintenance. In the MVR parallel shaft structure, the grinding roller components are connected to the swing arm by a single swing arm, and the bearing housing is secured to the support column by numerous bolts. A support hinge is provided between the bearing housing and the support column. Because the MVR parallel shaft structure uses many bolts to secure the bearing housing, each time the grinding roller components are removed for maintenance, a significant amount of time is required to disassemble or tighten these bolts. Routine maintenance also requires frequent inspection of these bolts, and the limited space for bolt installation below and in front of the swing arm increases the complexity and inconvenience of maintenance. In addition, there is another solution similar to the MVR parallel shaft structure, a new material grinding device (see patent application number CN201320085774.X), which has similar problems to those mentioned above in actual use.

[0003] It is evident that the rocker arm structure of the current vertical roller mill still has room for improvement. Adjustments and optimizations should be made to enhance operational flexibility, ease of use, and reduce maintenance difficulty. Therefore, a more reasonable technical solution is needed to address the technical problems existing in the current technology. Summary of the Invention

[0004] To overcome at least one of the defects mentioned above, this invention proposes a quick-opening rocker arm device. By adjusting the structure of the rocker arm device, the number of connecting and assembling components is reduced, making it easier to open the device and also easier to maintain.

[0005] To achieve the above-mentioned technical effects, the rocker arm device disclosed in this invention can adopt the following technical solution:

[0006] A quick-opening rocker arm device includes a column with a rocker arm rotatably connected to its upper end. The free end of the rocker arm is connected to a roller arm, which tilts relative to the rocker arm. The roller arm is connected to a grinding roller assembly and drives the grinding roller assembly to tilt synchronously. The grinding roller assembly is also provided with a locking component that cooperates with the rocker arm to lock and fix the grinding roller assembly to the rocker arm. A drive component is also provided below the roller arm to apply a longitudinal deflection force to the roller arm.

[0007] The aforementioned rocker arm device, through the cooperation of the column and the rocker arm, enables the rocker arm to flip, thereby achieving the roller-turning operation. The tilting and deflection of the roller shaft arm and the rocker arm allow for the adjustment of the grinding roller assembly's deflection and working pressure. The integrated column structure avoids the need for excessive connecting fasteners, making roller-turning and deflection adjustments simpler, more flexible, and quicker to use.

[0008] Furthermore, in this invention, the cooperation method between the rocker arm and the roller arm can adopt multiple schemes and is not limited to one. Here, we optimize and propose one feasible option: the rocker arm is provided with a shaft hole, and the roller arm is provided with a hinge shaft corresponding to the pin hole. The hinge shaft cooperates with the shaft hole and drives the roller arm to deflect relative to the rocker arm. When this scheme is adopted, the hinge shaft can be secured by a lock nut after cooperating with the pin hole, preventing the hinge shaft from coming out of the pin hole.

[0009] Furthermore, after the roller arm and the rocker arm deflect relative to each other to a certain angle, they can be locked in place. This can be achieved through various methods and is not limited to a single approach. Here, we optimize the design and propose one feasible option: the rocker arm is also provided with a socket, and the roller arm is provided with a corresponding pin structure. When the roller arm deflects and the pin structure aligns with the socket, the roller arm is fixed relative to the rocker arm. With this design, a protruding structure can be formed on the rocker arm, and the socket is positioned on this protruding structure; the protruding structure and the socket are integrally formed to create a single structure.

[0010] Furthermore, the mating method between the grinding roller assembly and the roller arm can be achieved through various structures and is not limited to one. Here, we optimize and propose one feasible option: the roller arm is provided with a mounting sleeve hole, and the grinding roller assembly includes a roller shaft that is fixedly fitted with the mounting sleeve hole. When adopting this solution, the roller shaft and the mounting sleeve hole can be an interference fit or a clearance fit and fixed by a setter.

[0011] Furthermore, the locking assembly can be constructed in various forms and is not limited to a single one. Here, we optimize and propose one feasible option: the locking assembly includes a connecting ring connected to the roller shaft, with an extension formed on the connecting ring that corresponds to and engages with the rocker arm. The extension engages with the rocker arm via a detachable fitting. In this configuration, the extension and the connecting ring are integrally formed.

[0012] Furthermore, the engagement between the rocker arm and the grinding roller assembly can be configured in various ways and is not limited to a single form. Here, we optimize the design and propose one feasible option: the rocker arm is provided with a locking hole, and the extension engages with the locking hole via a locking pin to fix the roller shaft to the rocker arm. With this design, the roller shaft is locked when the locking pin engages with the locking hole, and unlocked when the locking pin disengages from the locking hole.

[0013] Furthermore, the drive assembly, used to provide driving force and deflect the roller arm, can employ various methods. Here, we optimize and propose one feasible option: the drive assembly includes a drive rod, the bottom of which is hinged and fixed, and the top of which is hinged to the roller arm for extending and retracting the roller arm. In this configuration, the drive rod can be a hydraulic rod.

[0014] Furthermore, the arrangement of the rocker arm is not limited to a single method. Here, we propose one feasible option: the rocker arm engages with the upper end of the column via a rotary shaft, and the upper end of the column is equipped with a bearing seat, which engages with the rotary shaft via a bearing. With this design, the bearing seat and the column are integrally formed.

[0015] Furthermore, the rocker arm and the column are rotatably coupled. In order to maintain the angle of the rocker arm and prevent accidental deflection of the rocker arm, an optimization is proposed here, and one feasible option is: the rocker arm is provided with a flip-limiting hole, and the column is provided with a flip-stop pin; when the flip-stop pin and the flip-limiting hole are aligned and engaged, the rocker arm remains fixed relative to the column; when the flip-stop pin and the flip-limiting hole are separated, the rocker arm rotates relative to the column.

[0016] Furthermore, in order to better connect the rocker arm, an optimization is proposed here, and one feasible option is: a limiting shoulder is provided on the rotary shaft, which cooperates with the rocker arm and limits the axial position of the rocker arm on the rotary shaft.

[0017] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this invention include:

[0018] This invention simplifies the structure of the column, reduces the number of connecting fasteners, and achieves adjustment of the roller assembly through the cooperation of the swing arm and roller arm, making it more flexible, convenient, quick and efficient in actual use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the rocker arm device from one perspective.

[0021] Figure 2 This is a schematic diagram of the overall structure of the rocker arm device from another perspective.

[0022] Figure 3 This is a top view of the rocker arm device.

[0023] Figure 4 This is a cross-sectional schematic diagram of the rocker arm device.

[0024] Figure 5 This is an exploded view of the rocker arm device.

[0025] Figure 6 This is a schematic diagram of the rocker arm.

[0026] Figure 7 This is a schematic diagram of the roller arm.

[0027] Figure 8 This is a schematic diagram of the connecting ring.

[0028] In the above attached figures, the meanings of each number are as follows:

[0029] 1. Column; 2. Bearing housing; 3. Rocker arm; 301. Insertion hole; 302. Shaft hole; 303. Locking hole; 304. Tilting limit hole; 4. Roller arm; 401. Hinge shaft; 402. Mounting sleeve hole; 5. Grinding roller assembly; 501. Roller shaft; 6. Drive assembly; 7. Rotary shaft; 8. Connecting ring; 801. Extension; 802. Butt hole; 9. Locking pin; 10. Tilting stop pin. Detailed Implementation

[0030] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0031] To address the numerous shortcomings of existing rocker arm technologies, such as inconvenient operation and cumbersome use, the following embodiments are optimized to resolve these deficiencies.

[0032] Example

[0033] like Figures 1 to 8As shown, this embodiment provides a quick-opening rocker arm device, including a column 1 with a rocker arm 3 rotatably connected to the upper end of the column 1. The free end of the rocker arm 3 is connected to a roller arm 4, and the roller arm 4 tilts relative to the rocker arm 3. The roller arm 4 is connected to a grinding roller assembly 5 and drives the grinding roller assembly 5 to tilt synchronously. The grinding roller assembly 5 is also provided with a locking component that cooperates with the rocker arm 3. The locking component is used to lock the grinding roller assembly 5 and the rocker arm 3 and keep them fixed. A drive component 6 is also provided below the roller arm 4. The drive component 6 is used to apply a longitudinal deflection force to the roller arm 4.

[0034] The rocker arm device disclosed in this embodiment enables the rocker arm 3 to flip, thereby achieving the roller flipping operation, through the cooperation of the column 1 and the rocker arm 3. The tilting and deflection of the roller shaft arm 4 and the rocker arm 3 allow for the adjustment of the deflection of the grinding roller assembly 5, thus adjusting the deflection and working pressure of the grinding roller. The integral column 1 structure avoids the need for excessive connecting fasteners, making the roller flipping operation and deflection adjustment simpler, more flexible, and quicker to use.

[0035] In this embodiment, the cooperation between the rocker arm 3 and the roller arm 4 can adopt multiple schemes and is not limited to one. This embodiment optimizes and adopts one feasible option: the rocker arm 3 is provided with a shaft hole 302, and the roller arm 4 is provided with a hinge shaft 401 corresponding to the pin hole. The hinge shaft 401 cooperates with the shaft hole 302 and drives the roller arm 4 to deflect relative to the rocker arm 3. When this scheme is adopted, the hinge shaft 401 can be secured by a lock nut after cooperating with the pin hole to prevent the hinge shaft 401 from coming out of the pin hole.

[0036] After the roller arm 4 and the rocker arm 3 are deflected relative to each other to a certain angle, they can be locked in place. This can be achieved through various methods and is not limited to a single solution. This embodiment optimizes the solution and adopts one feasible option: the rocker arm 3 is also provided with a socket 301, and the roller arm 4 is provided with a pin structure corresponding to the socket 301. When the roller arm 4 deflects and the pin structure aligns with the socket 301, the roller arm 4 is fixed relative to the rocker arm 3. With this solution, a protruding structure can be formed on the rocker arm 3, and the socket 301 is placed on the protruding structure; the protruding structure and the socket 301 are integrally formed to create a single structure.

[0037] The mating method between the grinding roller assembly 5 and the roller arm 4 can be achieved through various structures and is not limited to one. This embodiment optimizes and adopts one feasible option: the roller arm 4 is provided with a mounting sleeve hole 402, and the grinding roller assembly 5 includes a roller shaft 501, which is fixedly fitted with the mounting sleeve hole 402. When this scheme is adopted, the roller shaft 501 and the mounting sleeve hole 402 can be an interference fit or a clearance fit and fixed by a fastener.

[0038] The locking assembly can be constructed in various forms and is not limited to a single one. This embodiment optimizes and adopts one feasible option: the locking assembly includes a connecting ring 8 connected to the roller 501, and an extension 801 corresponding to and cooperating with the rocker arm 3 is formed on the connecting ring 8. The extension 801 cooperates with the rocker arm 3 through a detachable fitting. When this solution is adopted, the extension 801 and the connecting ring 8 are integrally formed.

[0039] The cooperation between the rocker arm 3 and the grinding roller assembly 5 can be constructed in various forms and is not limited to a single one. This embodiment optimizes and adopts one feasible option: the rocker arm 3 is provided with a locking hole 303, and the extension 801 cooperates with the locking hole 303 through a locking pin 9 to fix the roller shaft 501 to the rocker arm 3. When this scheme is adopted, the roller shaft 501 is locked when the locking pin 9 is engaged with the locking hole 303, and the roller shaft 501 is unlocked when the locking pin 9 is separated from the locking hole 303.

[0040] Preferably, the connecting ring 8 is provided with a mating hole 802 for the locking pin 9 to pass through and mate with the locking hole 303.

[0041] The drive assembly 6 provides driving force and deflects the roller arm 4. Various schemes can be adopted; this embodiment optimizes and uses one feasible option: the drive assembly 6 includes a drive rod, the bottom of which is hinged and fixed, and the top of which is hinged to the roller arm 4 for extending and retracting the roller arm 4. When using this scheme, the drive rod can be a hydraulic rod.

[0042] The arrangement of the rocker arm 3 is not limited to a single method. This embodiment optimizes the arrangement and adopts one feasible option: the rocker arm 3 is connected to the upper end of the column 1 via a rotary shaft 7, and the upper end of the column 1 is provided with a bearing seat 2, which is connected to the rotary shaft 7 via a bearing. When this solution is adopted, the bearing seat 2 and the column 1 are integrally formed.

[0043] The rocker arm 3 and the column 1 are rotatably coupled. In order to maintain the angle of the rocker arm 3 and prevent the rocker arm 3 from deflecting unexpectedly, this embodiment is optimized and adopts one of the feasible options: the rocker arm 3 is provided with a flip-limiting hole 304, and the column 1 is provided with a flip-stop pin 10; when the flip-stop pin 10 and the flip-limiting hole 304 are aligned and engaged, the rocker arm 3 remains fixed relative to the column 1; when the flip-stop pin 10 and the flip-limiting hole 304 are separated, the rocker arm 3 rotates relative to the column 1.

[0044] To better connect the rocker arm 3, this embodiment is optimized and adopts one of the feasible options: the rotary shaft 7 is provided with a limiting shoulder, which cooperates with the rocker arm 3 and limits the axial position of the rocker arm 3 on the rotary shaft 7.

[0045] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.

Claims

1. A quick-opening rocker arm device, characterized in that: The system includes a column (1) with a rocker arm (3) rotatably connected to its upper end. A roller arm (4) is connected to the free end of the rocker arm (3), and the roller arm (4) tilts relative to the rocker arm (3). The rocker arm (3) has a shaft hole (302), and the roller arm (4) has a hinge shaft (401) corresponding to the shaft hole (302). The hinge shaft (401) engages with the shaft hole (302) and drives the roller arm (4) to tilt relative to the rocker arm (3). The shaft arm (4) is connected to the grinding roller assembly (5) and drives the grinding roller assembly (5) to pitch synchronously. The shaft arm (4) is provided with a mounting sleeve hole (402). The grinding roller assembly (5) includes a roller shaft (501) and the roller shaft (501) is fixed in place with the mounting sleeve hole (402). The grinding roller assembly (5) is also provided with a locking component that cooperates with the rocker arm (3). The locking component is used to lock and fix the grinding roller assembly (5) and the rocker arm (3). The locking component includes a connecting... A connecting ring (8) is formed on the roller shaft (501), and an extension (801) is formed on the connecting ring (8) to cooperate with the rocker arm (3). The extension (801) cooperates with the rocker arm (3) through a detachable fitting. The rocker arm (3) is provided with a locking hole (303). The extension (801) cooperates with the locking hole (303) through a locking pin (9) and fixes the roller shaft (501) and the rocker arm (3). A roller shaft arm (4) is also provided below the roller shaft arm (4). The drive assembly (6) is used to apply a longitudinal deflection force to the roller arm (4); the swing arm (3) is provided with a flipping limit hole (304), and the column (1) is provided with a flipping stop pin (10); when the flipping stop pin (10) and the flipping limit hole (304) are aligned and engaged, the swing arm (3) remains fixed relative to the column (1); when the flipping stop pin (10) and the flipping limit hole (304) are separated, the swing arm (3) flips relative to the column (1).

2. The quick-opening rocker arm device according to claim 1, characterized in that: The swing arm (3) is also provided with a socket (301), and the roller arm (4) is provided with a pin structure corresponding to the socket (301). When the roller arm (4) deflects and the pin structure is matched with the socket (301), the roller arm (4) is fixed relative to the swing arm (3).

3. The quick-opening rocker arm device according to claim 1, characterized in that: The drive assembly (6) includes a drive rod, the bottom of which is hinged and fixed, and the top of which is hinged to the roller arm (4) for extending and retracting the drive roller arm (4).

4. The quick-opening rocker arm device according to claim 1, characterized in that: The swing arm (3) is connected to the upper end of the column (1) via a rotary shaft (7). The upper end of the column (1) is provided with a bearing seat (2) which is connected to the rotary shaft (7) via a bearing.

5. The quick-opening rocker arm device according to claim 4, characterized in that: The rotary shaft (7) is provided with a limiting shoulder, which cooperates with the rocker arm (3) and limits the axial position of the rocker arm (3) on the rotary shaft (7).

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