A switching shaft structure with quick dismounting function

Abstract

This invention relates to the field of high-pressure roller mill technology, specifically a quick-assembly and disassembly adapter shaft structure. The adapter shaft includes an adapter shaft and an adapter flange. The adapter flange is fitted onto the outside of the main shaft through mounting holes. A bearing is fitted onto the main shaft, and the adapter flange is detachably connected to the outer end face of the bearing. One end of the adapter shaft has a flange structure matching the adapter flange and a stop structure matching the main shaft. The adapter shaft is detachably connected to the adapter flange via the flange structure and mounted on the input end of the main shaft via the stop structure. The other end of the adapter shaft is connected to a reducer. Keyway structures are correspondingly provided on the adapter flange, adapter shaft, and main shaft. The adapter flange and main shaft, and the adapter shaft and main shaft, are connected to each other via connecting keys located within the keyway structures. This invention enables quick assembly and disassembly, saving the workload of disassembling and assembling the reducer locking disc when the high-pressure roller mill is shut down for maintenance or replacement of important components.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-pressure roller mills, and specifically relates to a converter shaft structure with quick assembly and disassembly function. Background Technology

[0002] High-pressure roller mills, as key equipment in the fine and ultrafine crushing processes of mineral processing, have been widely used and recognized by the metal, non-metal mining, cement and building materials industries at home and abroad. Users have also clearly realized in the long-term use that maintaining good roller surface condition and reducing downtime are the key to ensuring the high-pressure roller mill's operating rate and product stability.

[0003] Typically, the drive system of a high-pressure roller mill is separate from the main equipment. The drive motor transmits power to the reducer via a universal coupling, and the reducer is fixed to the main shaft, forming an integral part of the high-pressure roller mill. If, during equipment use, it is necessary to repair or replace important components such as the roller system, main shaft, roller surface, or bearings, the reducer must be removed first. The reducer of a high-pressure roller mill is usually fixed to the input end of the roller system's main shaft using a locking disc. Coaxiality between the reducer and the main shaft is achieved by adjusting the tightening force of the locking disc bolts. This connection method requires installers to have considerable experience. Under ideal conditions, completing the locking and installation of a pair of reducer locking discs takes at least three days, and disassembling a single reducer takes at least one day. This means that the process of disassembling and assembling the reducer during each maintenance shutdown consumes a significant amount of time, severely impacting equipment maintenance efficiency. Utility Model Content

[0004] This invention addresses the aforementioned problems and overcomes the shortcomings of existing technologies by providing a transfer shaft structure with quick disassembly and assembly capabilities. This invention enables quick disassembly and assembly, eliminating the need to disassemble and assemble the reducer locking disc when the high-pressure roller mill is shut down for maintenance or replacement of important components, thus greatly shortening downtime and improving equipment maintenance efficiency and operating rate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] This utility model provides a quick-assembly / disassembly adapter shaft structure, characterized in that it includes an adapter shaft and an adapter flange. The adapter flange is provided with a mounting hole that matches the main shaft. The adapter flange is fitted onto the outside of the main shaft through the mounting hole. A bearing is fitted onto the main shaft. The adapter flange is detachably connected to the outer end face of the bearing. One end of the adapter shaft is provided with a flange structure that matches the adapter flange and a stop structure that matches the main shaft. The adapter shaft is detachably connected to the adapter flange through the flange structure and installed at the input end of the main shaft through the stop structure. The other end of the adapter shaft is connected to a reducer. The adapter flange, the adapter shaft, and the main shaft are all provided with corresponding keyway structures. The adapter flange and the main shaft, and the adapter shaft and the main shaft are all connected to each other by connecting keys provided in the keyway structures.

[0007] Furthermore, the keyway structure on the main shaft is a horizontal keyway radially disposed on the end face of the main shaft, the keyway structure of the adapter shaft is disposed on the inner circle and the inner end face corresponding to the horizontal keyway, and the keyway structure of the adapter flange is disposed on the inner circle and corresponds to the horizontal keyway.

[0008] Furthermore, the keyway structure on the main shaft is an elongated keyway arranged along the axial direction of the main shaft, and the keyway structures of the adapter flange and the adapter shaft are both arranged along the axial direction of the main shaft on their inner circles, and correspond to the elongated keyway.

[0009] Furthermore, the connecting surface of the adapter flange and the end face of the spindle presses against the inner ring of the bearing to fix the bearing.

[0010] The beneficial effects of this utility model.

[0011] After the adapter shaft and the locking disc of the reducer are installed, they form an integral structure, avoiding damage to the reducer and shaft head caused by repeated disassembly and assembly of the locking disc. Through the dual positioning of the stop structure and keyway structure and the installation form of the flange structure, it has the advantages of accurate coaxial positioning, reliable torque transmission, and convenient disassembly and installation. On-site disassembly and assembly are convenient. By disassembling the connection between the adapter shaft and the adapter flange, the adapter shaft and the reducer can be quickly disconnected from the main body of the equipment, saving the workload of disassembling and assembling the reducer locking disc, greatly reducing downtime, and improving equipment maintenance efficiency and operating rate. Attached Figure Description

[0012] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0013] Figure 1 This is a schematic diagram of the overall installation structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the first keyway structure of this utility model.

[0015] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure along direction A.

[0016] Figure 4 This is a schematic diagram of the first keyway structure of the adapter shaft of this utility model.

[0017] Figure 5 This is a schematic diagram of the first type of keyway structure adapter flange of this utility model.

[0018] Figure 6 This is a schematic diagram of the overall structure of the second keyway structure of this utility model.

[0019] Figure 7 This is a utility model Figure 6 A schematic diagram of the BB-oriented structure.

[0020] Figure 8 This is a schematic diagram of the adapter shaft structure of the second keyway structure of this utility model.

[0021] Figure 9 This is a schematic diagram of the second type of keyway structure of the adapter flange of this utility model.

[0022] The markings in the diagram are as follows: 1 is the adapter shaft, 2 is the adapter flange, 3 is the main shaft, 4 is the bearing, 5 is the flange structure, 6 is the stop structure, 7 is the reducer, 8 is the keyway structure, and 9 is the connecting key. Detailed Implementation

[0023] Combined with appendix Figure 1 As shown, this embodiment provides a quick-assembly and disassembly adapter shaft structure, including an adapter shaft 1 and an adapter flange 2. The adapter flange 2 is provided with mounting holes that match the main shaft 3. The adapter flange 2 is sleeved on the outside of the main shaft 3 through the mounting holes. A bearing 4 is connected to the main shaft 3. The adapter flange 2 is detachably connected to the outer end face of the bearing 4, and the connecting surface between the adapter flange 2 and the end face of the main shaft 3 presses against the inner ring of the bearing 4, replacing the method of using a bearing 4 locking ring to fix the bearing 4 in the prior art.

[0024] One end of the adapter shaft 1 is provided with a flange structure 5 that matches the adapter flange 2 and a stop structure 6 that matches the main shaft 3. The adapter shaft 1 is detachably connected to the adapter flange 2 by bolts through the flange structure 5 and installed at the input end of the main shaft 3 through the stop structure 6.

[0025] The other end of the adapter shaft 1 is connected to the reducer 7. After the locking disc of the reducer 7 and the adapter shaft 1 are installed, they can form an integral structure, avoiding damage to the reducer 7 and the shaft head caused by repeated disassembly and reassembly of the locking disc.

[0026] The adapter flange 2, adapter shaft 1 and main shaft 3 are provided with keyway structures 8 respectively. The adapter flange 2 and main shaft 3, and the adapter shaft 1 and main shaft 3 are all connected to each other by connecting keys 9 provided in the keyway structure 8.

[0027] The keyway structure 8 can be configured in the following two ways: Combined with appendix Figure 2 , 3 As shown in Figures 4 and 5, the keyway structure 8 on the main spindle 3 is a horizontal keyway that is radially arranged on the end face of the main spindle 3. The keyway structure 8 of the adapter shaft 1 is arranged on the inner circle and the inner end face corresponding to the horizontal keyway. The keyway structure 8 of the adapter flange 2 is arranged on the inner circle and corresponds to the horizontal keyway.

[0028] Combined with appendix Figure 6 , 7 As shown in Figures 8 and 9, the keyway structure 8 on the main shaft 3 is a long keyway arranged along the axial direction of the main shaft 3. The keyway structures 8 of the adapter flange 2 and the adapter shaft 1 are both arranged along the axial direction of the main shaft 3 on their inner circles and correspond to the long keyway.

[0029] One, two, or more keyway structures 8 can be arranged according to equipment specifications and the magnitude of transmitted torque, etc., and the number of connecting keys 9 matches the number of keyway structures 8. Through the mutually matching stop structure 6 and key connection structure, the concentricity of the adapter shaft 1, adapter flange 2, and main shaft 3 is ensured, and torque transmission is achieved, resulting in accurate coaxial positioning and reliable torque transmission.

[0030] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. An adapter shaft structure with quick disassembly function, characterized in that, The system includes a transition shaft (1) and a transition flange (2). The transition flange (2) has a mounting hole that matches the main shaft (3). The transition flange (2) is fitted onto the outside of the main shaft (3) through the mounting hole. A bearing (4) is connected to the main shaft (3). The transition flange (2) is detachably connected to the outer end face of the bearing (4). One end of the transition shaft (1) is provided with a flange structure (5) that matches the transition flange (2) and a stop structure (6) that matches the main shaft (3). The adapter shaft (1) is detachably connected to the adapter flange (2) via the flange structure (5) and installed at the input end of the main shaft (3) via the stop structure (6). The other end of the adapter shaft (1) is connected to the reducer (7). The adapter flange (2), the adapter shaft (1) and the main shaft (3) are simultaneously provided with keyway structures (8). The adapter flange (2) and the main shaft (3) and the adapter shaft (1) and the main shaft (3) are all connected to each other by connecting keys (9) provided in the keyway structure (8).

2. The adapter shaft structure with quick disassembly function according to claim 1, characterized in that, The keyway structure (8) on the main shaft (3) is a horizontal keyway that is radially arranged on the end face of the main shaft (3). The keyway structure (8) of the adapter shaft (1) is arranged on the inner circle and the inner end face corresponding to the horizontal keyway. The keyway structure (8) of the adapter flange (2) is arranged on the inner circle and corresponds to the horizontal keyway.

3. The adapter shaft structure with quick disassembly function according to claim 1, characterized in that, The keyway structure (8) on the main shaft (3) is a long keyway arranged along the axial direction of the main shaft (3). The keyway structures (8) of the adapter flange (2) and the adapter shaft (1) are both arranged along the axial direction of the main shaft (3) on their inner circles and correspond to the long keyway.

4. The adapter shaft structure with quick assembly and disassembly function according to claim 1, characterized in that, The connecting surface of the adapter flange (2) and the end face of the main shaft (3) presses against the inner ring of the bearing (4) to fix the bearing (4).

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