Combined output thrust disc for vertical mill gearbox and vertical mill gearbox
By using a modular combination structure of labyrinth ring, grinding ring, and thrust disc, the problem of uncontrollable casting quality of the output thrust disc of a large vertical mill gearbox is solved, enabling low-cost, high-quality thrust disc manufacturing, simplifying the processing and improving product stability.
Patent Information
- Application Number
- CN202520452095.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In the existing technology, the output thrust disc used in the gearbox of a large vertical mill has a high scrap rate and high production cost due to uncontrollable casting quality, and the machining accuracy is uncontrollable, making it impossible to guarantee the production cycle.
The labyrinth ring, grinding ring and thrust disc are assembled in separate parts and fixed together by fasteners to form a combined output thrust disc. Each part is processed independently to reduce costs and improve accuracy.
A combined output thrust disc with simple structure, convenient processing and low cost has been realized. The product quality is stable and reliable, the performance is good, the production cost is reduced and the production cycle is guaranteed.
Smart Images
Figure CN223676789U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a thrust disc technical field, especially a combined output thrust disc for vertical mill gear box, vertical mill gear box. BACKGROUND
[0002] Vertical mill gear box, as the core equipment in powder processing flow, is widely used in metallurgy, building material, electric power and many other industrial fields. The output thrust disc for vertical mill gear box transmits the axial thrust generated by the rotor to the thrust bearing (or called thrust pad), thereby ensuring the stable operation of the mechanical equipment.
[0003] At present, the output thrust disc for vertical mill gear box is usually manufactured by using integral cast steel or cast iron. When facing large vertical mill gear box, the diameter size of the output thrust disc is large and the thickness size difference is large due to the particularity of the part structure, and no matter whether cast steel or cast iron is used, the casting quality is uncontrollable and the scrap rate is high.
[0004] In order to improve this situation, some manufacturers try to use forgings to manufacture relatively small size thrust disc. The forging can improve the internal defects of the material through the forging process. However, the production cost of the forging is much higher than that of the casting, especially for large thrust disc, the increase of the forging manufacturing cost is particularly significant, making the overall production cost difficult to control.
[0005] For large vertical mill gear box output thrust disc, whether it is integral casting or integral forging, the production cost of the vertical mill gear box is often high and the production cycle cannot be guaranteed due to uncontrollable machining precision or uncontrollable defects of raw materials. UTILITY MODEL CONTENTS
[0006] In order to solve the above technical problems, the utility model provides a combined output thrust disc for vertical mill gear box. On the other hand, a vertical mill gear box is also provided. The combined output thrust disc is formed in a split body, which is simple in structure, convenient to process, low in cost, stable and reliable in product quality, and good in use effect.
[0007] The technical problems solved by the utility model can be realized by the following technical solutions:
[0008] The first aspect of the utility model is to provide a combined output thrust disc for vertical mill gear box, which comprises a labyrinth ring, a grinding ring and a thrust disc. The labyrinth ring, the grinding ring and the thrust disc are formed in a split body. The labyrinth ring is fixed on the thrust disc by a first fastener. The grinding ring is fixed on the bottom of the thrust disc by a second fastener.
[0009] Preferably, the thrust disc is provided with a first assembly surface, the first assembly surface is opened along the circumference of the thrust disc, and the first assembly surface is L-shaped.
[0010] The labyrinth ring is provided with a second assembly surface and a third assembly surface, the second assembly surface is matched with the first assembly surface, and the third assembly surface is provided with a mounting positioning groove.
[0011] Preferably, the labyrinth ring is provided with a first mounting hole.
[0012] The thrust disc is provided with a first mounting groove corresponding to the first mounting hole, and the first fastener is fixed in the first mounting groove through the first mounting hole.
[0013] Preferably, the first fastener comprises a plurality of first fasteners, and the plurality of first fasteners are uniformly arranged.
[0014] Preferably, the first fastener is a screw.
[0015] Preferably, the thrust disc is provided with a second mounting hole.
[0016] The grinding ring is provided with a second mounting groove corresponding to the second mounting hole, and the second fastener is fixed in the second mounting groove through the second mounting hole.
[0017] Preferably, the second fastener comprises a plurality of second fasteners, and the plurality of second fasteners are uniformly arranged.
[0018] Preferably, the second fastener is a screw.
[0019] Preferably, the utility model further comprises:
[0020] A protective cover is arranged above the second fastener, the protective cover is matched with the thrust disc, and the upper surface of the protective cover is flush with the upper surface of the thrust disc.
[0021] The second aspect of the utility model provides a vertical mill gear box, which comprises a box body, a planet carrier, a thrust pad and a combined output thrust disc as described above, the box body is connected with the labyrinth ring, the thrust pad is connected with the grinding ring, and the planet carrier is connected with the center of the thrust disc.
[0022] The utility model technical scheme has the advantages or beneficial effects of:
[0023] The combined output thrust disc of the utility model is combined by the labyrinth ring, the grinding ring and the thrust disc formed in a split mode, has simple structure, is convenient to process, is low in cost, is stable and reliable in product quality, and has good use effect. DRAWINGS
[0024] Figure 1For the preferred embodiment of the utility model, the structural schematic view of the combined output thrust disc for the large vertical mill gear box,
[0025] Figure 2 For the preferred embodiment of the utility model, the structural schematic view of the combined output thrust disc for the large vertical mill gear box,
[0026] Mark explanation:
[0027] 100, combined output thrust disc, 1, labyrinth ring, 2, first fastener, 3, cover, 4, second fastener, 5, grinding ring, 6, thrust disc, 7, mounting positioning groove, 200, box, 300, thrust pad, 400, planet carrier. Specific implementation
[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0029] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0030] The utility model will be further described below in conjunction with the drawings and specific embodiments, but not as the limitation of the utility model.
[0031] Reference Figure 1 , the preferred embodiment of the utility model, based on the above-mentioned problems existing in the prior art, now provides a kind of combined output thrust disc 100 for vertical mill gear box, including labyrinth ring 1, grinding ring 5 and thrust disc 6, labyrinth ring 1, grinding ring 5 and thrust disc 6 are formed by split, labyrinth ring 1 is fixed on thrust disc 6 by first fastener 2, grinding ring 5 is fixed on the bottom of thrust disc 6 by second fastener 4.
[0032] Specifically, for the output thrust disc of large vertical mill gear box in the prior art, whether it is integral casting or integral forging, often because the machining precision is uncontrollable or the defects of raw materials are uncontrollable, leading to the problem that the production cost of vertical mill gear box is high, and the production cycle cannot be guaranteed.
[0033] The combined output thrust disc 100 for the vertical mill gear box in the embodiment mainly consists of three parts: the labyrinth ring 1, the grinding ring 5 and the thrust disc 6. After the labyrinth ring 1 is matched with the thrust disc 6, the first fastener 2 is used to uniformly fix the labyrinth ring 1 on the thrust disc; after the grinding ring 5 is matched with the thrust disc 6, the second fastener 4 is used to uniformly fix the grinding ring 5 on the thrust disc 6.
[0034] The three parts are formed by separate molding, that is, each part is manufactured as an independent component instead of the traditional integrated casting or integrated forging. The separate design simplifies the manufacturing process and reduces the technical difficulty. Moreover, each part can be processed independently, reducing the risk of overall scrapping due to large differences in diameter and thickness of a single part, and facilitating quality control and precision assurance.
[0035] Further, the labyrinth ring 1, the grinding ring 5 and the thrust disc 6 can be formed by forging or casting respectively, or suitable manufacturing methods can be selected according to needs, for example, the labyrinth ring 1 and the grinding ring 5 are formed by forging, and the thrust disc 6 is formed by casting. By selecting appropriate manufacturing methods, production costs are reduced.
[0036] The combined output thrust disc 100 for the vertical mill gear box in the embodiment is formed by the labyrinth ring 1, the grinding ring 5 and the thrust disc 6 formed by separate molding, which is simple in structure, convenient to process, low in cost, stable and reliable in product quality, and good in use effect.
[0037] As a preferred embodiment, the thrust disc 6 is provided with a first assembly surface, the first assembly surface is formed along the circumference of the thrust disc 6, and the first assembly surface is L-shaped.
[0038] The labyrinth ring 1 is provided with a second assembly surface and a third assembly surface, the second assembly surface is matched with the first assembly surface, and the third assembly surface is provided with a mounting positioning groove 7.
[0039] Specifically, in the embodiment, a first assembly surface is formed along the circumference of the top edge of the thrust disc 6, the assembly surface is L-shaped, the contact area of the assembly surface is increased, and the stability and sealing performance of assembly are improved.
[0040] In the assembly process, the second assembly surface of the labyrinth ring 1 is matched with the L-shaped first assembly surface of the thrust disc 6 to ensure that the labyrinth ring 1 and the thrust disc 6 are closely fitted; then the first fastener 2 is used to fix the labyrinth ring 1 on the thrust disc 6.
[0041] The labyrinth ring 1 is also provided with a mounting positioning groove 7, the mounting positioning groove 7 is used to be clamped with a clamping block on the upper end of the gear box body, and the mounting positioning groove 7 can be accurately positioned during installation to prevent displacement or loosening during operation.
[0042] As a preferred embodiment, the labyrinth ring 1 is provided with a first mounting hole.
[0043] The thrust disc 6 is provided with a first mounting slot corresponding to the first mounting hole, and the first fastener 2 is fixed in the first mounting slot through the first mounting hole.
[0044] The labyrinth ring 1 is provided with a first mounting hole, and the thrust disc 6 is provided with a first mounting slot corresponding to the first mounting hole. During assembly, the first fastener 2 (such as a bolt) passes through the first mounting hole of the labyrinth ring 1 and is fixed in the first mounting slot of the thrust disc 6. The specific implementation steps are as follows:
[0045] Specifically, in this embodiment, the labyrinth ring 1 is provided with a first mounting hole, which is arranged in a penetrating manner. The first mounting hole can include multiple first mounting holes, which are uniformly distributed along the circumference.
[0046] The thrust disc 6 is provided with a first mounting slot opening upward, and the position of the first mounting slot is aligned with the first mounting hole of the thrust disc 6. The shape and size of the first mounting slot are matched with the first mounting hole, so that the first fastener 2 can pass through and be fixed smoothly.
[0047] During assembly, the first fastener 2 passes through the first mounting hole of the labyrinth ring 1 and is screwed into the first mounting slot of the thrust disc 6, so as to ensure that the labyrinth ring 1 is fixed on the thrust disc 6.
[0048] As a preferred embodiment, the first fastener 2 includes multiple first fasteners 2, which are uniformly arranged.
[0049] As a preferred embodiment, the first fastener 2 is a screw. Of course, it should be understood that in other embodiments, other fasteners such as bolts can also be used.
[0050] As a preferred embodiment, the thrust disc 6 is provided with a second mounting hole.
[0051] The grinding ring 5 is provided with a second mounting slot corresponding to the second mounting hole, and the second fastener passes through the second mounting hole and is fixed in the second mounting slot.
[0052] Specifically, in this embodiment, the thrust disc 6 is provided with a second mounting hole, which is arranged in a penetrating manner. The second mounting hole can include multiple second mounting holes, which are uniformly distributed along the circumference.
[0053] The grinding ring 5 is provided with a second mounting slot opening upward, and the position of the second mounting slot is aligned with the second mounting hole of the thrust disc 6. The shape and size of the second mounting slot are matched with the second mounting hole, so that the second fastener 4 can pass through and be fixed smoothly.
[0054] During the assembly process, the first fastener 2 is used to pass through the first mounting hole of the labyrinth ring 1 and is screwed into the first mounting groove of the thrust disc 6, so as to ensure that the labyrinth ring 1 is fixed on the thrust disc 6.
[0055] As a preferred embodiment, the second fastener 4 comprises a plurality of second fasteners 4 which are uniformly arranged.
[0056] As a preferred embodiment, the second fastener 4 is a screw. Of course, it should be understood that other fasteners, such as bolts, etc., can also be used in other embodiments.
[0057] Further, the diameter of the second mounting hole is greater than the diameter of the first mounting hole, and the diameter of the second mounting groove is also greater than the diameter of the first mounting groove. In the embodiment, the first fastener 2 is preferably a small screw, and the second fastener 4 is preferably a large screw.
[0058] As a preferred embodiment, the second fastener 4 comprises a plurality of second fasteners 4 which are uniformly arranged.
[0059] The cover 3 is arranged above the second fastener 4, the cover 3 is matched with the thrust disc 6, and the upper surface of the cover 3 is flush with the upper surface of the thrust disc 6.
[0060] Specifically, in the embodiment, the cover 3 is arranged above the second fastener 4, and the shape of the cover 3 is matched with the shape of the second mounting hole of the thrust disc 6. The cover 3 is arranged above and covers the second fastener 4, so as to prevent the second fastener 4 from being eroded by the external environment (such as dust, oil stains, etc.) during operation, and prolong the service life of the fastener.
[0061] The utility model also provides a vertical mill gear box, including box body 200, planet carrier 400, thrust pad and the combined output thrust disc 100 like above, box body 200 is connected with labyrinth ring 1, thrust pad 300 is connected with mill ring 5, planet carrier 400 is connected with the central part of thrust disc 6.
[0062] The thrust pad 300, also known as a thrust bearing, is used to balance the axial thrust of the rotor.
[0063] Specifically, in the embodiment, the labyrinth ring 1, the mill ring 5 and the thrust disc 6 are combined and assembled to form the combined output thrust disc 100, and then the combined output thrust disc 100 is assembled with the vertical mill gear box.
[0064] During the assembly process, the mounting positioning groove 7 on the labyrinth ring 1 is clamped with the clamping block on the upper end of the box body 200; the thrust pad 300 is installed on the top of the box body 200, the bottom of the mill ring 5 is connected with the top of the thrust pad 300; the planet carrier 400 is installed in the box body 200, and the central part of the thrust disc 6 is connected with the planet carrier 400 by using a fastener such as a bolt.
[0065] The combination output thrust disc has the advantages of simple structure, convenient processing, low cost, stable and reliable product quality and good use effect.
[0066] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and those skilled in the art should realize that any equivalent replacement and obvious change obtained by using the content of the specification and drawings should be included in the protection scope of the utility model.
Claims
1. A combined output thrust disc for a vertical mill gear box, characterized by, Including the labyrinth ring (1), the grinding ring (5) and the thrust disc (6), the labyrinth ring (1), the grinding ring (5) and the thrust disc (6) are formed in parts, the labyrinth ring (1) is fixed on the thrust disc (6) by the first fastener (2), and the grinding ring (5) is fixed on the bottom of the thrust disc (6) by the second fastener (4).
2. The combined output thrust disc for a gear box of a vertical mill according to claim 1, characterized in that, The first assembly surface is arranged on the thrust disc (6), the first assembly surface is opened along the circumference of the thrust disc (6), and the first assembly surface is L-shaped. The second assembly surface and the third assembly surface are arranged on the labyrinth ring (1), the second assembly surface is matched with the first assembly surface, and the third assembly surface is provided with the mounting positioning groove.
3. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The first mounting hole is arranged on the labyrinth ring (1). The first mounting groove corresponding to the first mounting hole is arranged on the thrust disc (6), and the first fastener (2) is fixed in the first mounting groove through the first mounting hole.
4. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The first fastener (2) comprises a plurality of first fasteners (2), and the plurality of first fasteners (2) are uniformly arranged.
5. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The first fastener (2) is a screw.
6. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The second mounting hole is arranged on the thrust disc (6). The second mounting groove corresponding to the second mounting hole is arranged on the grinding ring (5), and the second fastener (4) is fixed in the second mounting groove through the second mounting hole.
7. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The second fastener (4) comprises a plurality of second fasteners (4), and the plurality of second fasteners (4) are uniformly arranged.
8. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, The second fastener (4) is a screw.
9. The combined output thrust disc for a gear box of a vertical mill according to claim 1, wherein, Further comprising: The cover (3) is arranged above the second fastener (4), the cover (3) is matched with the thrust disc (6), and the upper surface of the cover (3) is flush with the upper surface of the thrust disc (6).
10. A vertical mill gearbox, characterized by, The box body, the planet carrier, the thrust pad and the combined output thrust disc are arranged, the box body is connected with the labyrinth ring (1), the thrust pad is connected with the grinding ring (5), and the planet carrier is connected with the center of the thrust disc (6).