Novel grinding wheel dismounting device

Abstract

The utility model relates to the technical field of roll grinders, and discloses a novel grinding wheel dismounting device which comprises a hanging rod and a connecting ring, a fixing disc is sleeved and mounted in the connecting ring, a connecting column is fixedly mounted at the top end of the fixing disc, and a hydraulic puller jack is in threaded connection with the upper portion of the fixing disc through the connecting column. According to the novel grinding wheel dismounting device, through the sliding design of the movable column and the fixed disc, it can be ensured that the grinding wheel chuck is horizontally pulled out, the situation that the grinding wheel chuck rubs against the main shaft, and consequently the main shaft is abnormally damaged is effectively avoided, meanwhile, the grinding wheel chuck dismounting assembly, the fixed disc, the countershaft disc and the hydraulic puller jack are each of a detachable design, maintenance and assembly are convenient, and the working efficiency is improved. The grinding wheel chuck is simple in structure and low in use cost, the rubber gasket made of rubber materials is adopted, a buffer component can be filled between the countershaft disc and the main shaft, the situation that the main shaft is damaged due to repeated disassembly of the grinding wheel chuck is avoided, and the disassembled grinding wheel chuck can be hoisted through a hoisting device through the hanging rod and does not need to be manually carried.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill grinding technology, specifically a novel grinding wheel disassembly device. Background Technology

[0002] In the roll grinding process, when the grinding machine operates on rolls with different roughness requirements, the grinding wheel, as the key abrasive tool that directly acts on the roll surface to achieve material removal and surface quality shaping, has a high degree of specificity and adaptability in its selection. When the required surface roughness of the roll changes, it is necessary to accurately switch to the appropriate grinding wheel grade to ensure that the grinding process can not only efficiently remove material, but also achieve the ideal surface roughness index. In the grinding wheel replacement process, the grinding wheel disassembly device plays an indispensable role.

[0003] However, most existing grinding wheel removal devices directly use a hydraulic mechanism to hold the spindle in place and then pull out the grinding wheel chuck in the opposite direction to remove the grinding wheel. Since there is no corresponding guiding mechanism, the grinding wheel chuck and the spindle will rub against each other during the removal process. Long-term use can easily lead to abnormal damage to the spindle and affect production efficiency. In addition, existing grinding wheel removal devices do not adopt a modular design, making it inconvenient to replace them after damage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a novel grinding wheel disassembly device to solve the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel grinding wheel disassembly device, comprising a hanging rod and a connecting ring, wherein a fixed plate is sleeved inside the connecting ring, a connecting column is fixedly installed at the top of the fixed plate, a hydraulic puller jack is threadedly connected above the fixed plate via the connecting column, a grinding wheel chuck disassembly assembly is provided inside the fixed plate, a shaft-aligning plate is provided at the lower part of the grinding wheel chuck disassembly assembly, a rubber gasket is provided at the lower part of the shaft-aligning plate, the grinding wheel chuck disassembly assembly is fixedly connected to the movable end of the hydraulic puller jack via a main locking bolt, the grinding wheel chuck disassembly assembly is fixedly connected to the shaft-aligning plate via a secondary locking bolt, and a threaded ring is also provided at the lower part of the outer side of the fixed plate.

[0008] Preferably, a connecting rod is fixedly installed at one end of the hanging rod, a connecting ring is fixedly installed at the other end of the hanging rod, and a lifting buckle is provided at the end of the connecting rod away from the hanging rod.

[0009] Through the technical scheme, the disassembled grinding disc chuck can be hoisted by the hoisting device without manual carrying, the labor intensity in the disassembling process is reduced, and the disassembling efficiency is improved.

[0010] Preferably, the grinding disc chuck disassembling assembly comprises a movable disc, a connecting bolt, a movable column and a sleeve disc, the movable disc is sleeved and installed outside the connecting column, the lower part of the movable disc is provided with the movable column, the end of the movable column away from the movable disc is fixedly installed with the sleeve disc, and the movable column and the movable disc are fixedly connected through the connecting bolt.

[0011] Preferably, the connecting bolt and the movable column are provided with four same ones, the four connecting bolts and the four movable columns are symmetrically distributed around the center line of the connecting column, the movable column penetrates through the fixed disc and extends to the inside of the fixed disc, and the movable column and the fixed disc are in sliding connection.

[0012] Through the technical scheme, in the process of disassembling the grinding disc chuck, the horizontal pulling out of the grinding disc chuck can be ensured through the sliding design of the movable column and the fixed disc, and the friction between the grinding disc chuck and the main shaft is effectively avoided, so that the abnormal damage of the main shaft is avoided.

[0013] Preferably, the bottom ends of the fixed disc, the sleeve disc and the counter shaft disc are in an open structure, the vertical center lines of the fixed disc, the sleeve disc and the counter shaft disc are located on the same vertical line, the sleeve disc and the counter shaft disc are located inside the fixed disc, and the counter shaft disc is located inside the sleeve disc.

[0014] Through the technical scheme, in use, the worker first twists the threaded ring at the lower part of the fixed disc into the threaded hole of the grinding disc chuck until the fixed disc is completely fastened with the grinding disc chuck, then uses the hydraulic puller to push the sleeve disc to move towards the direction of the main shaft, the sleeve disc also drives the counter shaft disc to move towards the direction of the main shaft until the rubber gasket is completely attached to the main shaft, then continues to use the hydraulic puller to apply a pushing force, the grinding disc chuck can be disassembled from the main shaft through the principle of action and reaction, then uses the hoisting rod, the connecting rod, the hoisting buckle and the connecting ring to hoist the grinding disc chuck away, at this time, the grinding disc can be disassembled, and in the process of disassembling the grinding disc chuck, the horizontal pulling out of the grinding disc chuck can be ensured through the sliding design of the movable column and the fixed disc, and the friction between the grinding disc chuck and the main shaft is effectively avoided, so that the abnormal damage of the main shaft is avoided.

[0015] Preferably, the rubber gasket is made of hard rubber material, the rubber gasket and the counter shaft disc are in adhesive connection, the threaded ring and the grinding disc chuck are in threaded connection, and the main locking bolt penetrates through the sleeve disc and the fixed disc and extends to the inside of the connecting column.

[0016] Through the technical scheme, the rubber gasket made of rubber material can fill a buffer component between the counter shaft disc and the main shaft, avoid damaging the main shaft by repeatedly disassembling the grinding wheel chuck, and improve practicality.

[0017] Compared with the prior art, the novel grinding wheel dismounting device has the following beneficial effects: the novel grinding wheel dismounting device is provided with a grinding wheel chuck dismounting assembly, the horizontal pulling-out of the grinding wheel chuck can be ensured through the sliding design of the movable column and the fixed disc, the friction between the grinding wheel chuck and the main shaft is effectively avoided, the abnormal damage of the main shaft is avoided, the practicality is improved, the grinding wheel chuck dismounting assembly, the fixed disc, the counter shaft disc and the hydraulic puller jack are all designed to be detachable, which is convenient for maintenance and assembly, has low use cost, the rubber gasket made of rubber material can fill a buffer component between the counter shaft disc and the main shaft, avoid damaging the main shaft by repeatedly disassembling the grinding wheel chuck, the dismounted grinding wheel chuck can be lifted by the lifting device through the design of the hanging rod, the connecting rod, the hoisting buckle and the connecting ring, and manual carrying is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 For the three-dimensional structure of the utility model Figure 1 ;

[0019] Figure 2 For the three-dimensional structure of the utility model Figure 2 ;

[0020] Figure 3 For the three-dimensional structure of the utility model

[0021] Figure 4 For the three-dimensional structure of the utility model

[0022] Figure 5 For the three-dimensional structure of the utility model Figure 1 ;

[0023] Figure 6 For the three-dimensional structure of the utility model Figure 2 ;

[0024] Figure 7 For the three-dimensional structure of the utility model

[0025] Among them: 1, hanging rod; 2, connecting rod; 3, hoisting buckle; 4, connecting ring; 5, fixed disc; 6, connecting column; 7, hydraulic puller jack; 8, grinding wheel chuck dismounting assembly; 801, movable disc; 802, connecting bolt; 803, movable column; 804, sleeve disc; 9, counter shaft disc; 10, rubber gasket; 11, main locking bolt; 12, vice locking bolt; 13, threaded ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment one

[0028] As shown in Figures 1-7 The utility model provides a novel grinding wheel dismounting device, including hanging pole 1 and connecting ring 4, the inside sleeve joint of connecting ring 4 is installed with fixed disc 5, and the top of fixed disc 5 is fixedly installed with connecting column 6, and the upper portion of fixed disc 5 is connected with hydraulic drawbar jack 7 through connecting column 6, and the inside of fixed disc 5 is provided with grinding wheel chuck dismounting assembly 8, and the lower part of grinding wheel chuck dismounting assembly 8 is provided with counter shaft disc 9, and the lower part of counter shaft disc 9 is provided with rubber pad 10, and grinding wheel chuck dismounting assembly 8 is fixedly connected with the movable end of hydraulic drawbar jack 7 through main locking bolt 11, and grinding wheel chuck dismounting assembly 8 and counter shaft disc 9 are fixedly connected through auxiliary locking bolt 12, and the lower portion of the outside of fixed disc 5 is further provided with screw ring 13, and one end of hanging pole 1 is fixedly installed with connecting rod 2, and the other end of hanging pole 1 is fixedly installed with connecting ring 4, and the end, away from hanging pole 1, of connecting rod 2 is provided with hoisting buckle 3. The advantage is that the dismounted grinding wheel chuck can be hoisted by hoisting device through the design of hanging pole 1, connecting rod 2, hoisting buckle 3 and connecting ring 4, manual carrying is not needed, the labor intensity in the process of dismounting is reduced, and the dismounting efficiency is improved.

[0029] Embodiment two

[0030] As shown in Figures 2-7 As an improvement on the previous embodiment.

[0031] Specifically, the grinding wheel chuck dismounting assembly 8 comprises a movable disc 801, connecting bolts 802, movable columns 803 and a sleeve disc 804, the movable disc 801 is sleeved and installed outside the connecting column 6, the lower part of the movable disc 801 is provided with the movable columns 803, the end of the movable columns 803 away from the movable disc 801 is fixedly installed with the sleeve disc 804, the movable columns 803 and the movable disc 801 are fixedly connected through the connecting bolts 802, the connecting bolts 802 and the movable columns 803 are all provided with four, the four connecting bolts 802 and the movable columns 803 are symmetrically distributed around the center line of the connecting column 6, the movable columns 803 penetrate through the fixed disc 5 and extend to the inside of the fixed disc 5, the movable columns 803 and the fixed disc 5 are in sliding connection, and the advantage is that, in the process of dismounting the grinding wheel chuck, the sliding design of the movable columns 803 and the fixed disc 5 can ensure that the grinding wheel chuck is pulled out horizontally, and the friction between the grinding wheel chuck and the main shaft is effectively avoided, so that the abnormal damage of the main shaft is avoided.

[0032] Embodiment three:

[0033] As shown in Figures 2-7 , as an improvement on the last embodiment.

[0034] Specifically, the fixed disc 5, the sleeve disc 804 and the bottom end of the counter shaft disc 9 are in an open structure, the vertical center lines of the fixed disc 5, the sleeve disc 804 and the counter shaft disc 9 are located on the same vertical line, the sleeve disc 804 and the counter shaft disc 9 are located inside the fixed disc 5, and the counter shaft disc 9 is located inside the sleeve disc 804, and the advantage is that, in use, the worker first screws the threaded ring 13 at the lower part of the fixed disc 5 into the threaded hole of the grinding wheel chuck until the fixed disc 5 is tightly fastened with the grinding wheel chuck, then uses the hydraulic puller jack 7 to push the sleeve disc 804 to move towards the direction of the main shaft, the sleeve disc 804 will also drive the counter shaft disc 9 to move towards the direction of the main shaft until the rubber gasket 10 is completely attached to the main shaft, then continues to use the hydraulic puller jack 7 to apply a pushing force, and through the principle of action and reaction, the grinding wheel chuck can be dismounted from the main shaft, then the grinding wheel chuck is hung off by using the hanging rod 1, the connecting rod 2, the hoisting buckle 3 and the connecting ring 4, at this time, the grinding wheel can be dismounted, and in the process of dismounting the grinding wheel chuck, the sliding design of the movable columns 803 and the fixed disc 5 can ensure that the grinding wheel chuck is pulled out horizontally, and the friction between the grinding wheel chuck and the main shaft is effectively avoided, so that the abnormal damage of the main shaft is avoided.

[0035] Specifically, the rubber gasket 10 is made of hard rubber material, the rubber gasket 10 and the counter shaft disc 9 are in adhesive connection, the threaded ring 13 and the grinding wheel chuck are in threaded connection, and the main locking bolt 11 penetrates through the sleeve disc 804 and the fixed disc 5 and extends to the inside of the connecting column 6, and the advantage is that the rubber gasket 10 made of rubber material can fill a buffer part between the counter shaft disc 9 and the main shaft, so that the main shaft is prevented from being damaged by dismounting the grinding wheel chuck for many times, and the practicability is improved.

[0036] Working principle: in use, the staff first fixes the lower threaded ring 13 of the fixed disc 5 to the threaded hole of the grinding disc chuck, and screws into the fixed disc 5 and the grinding disc chuck, and then uses the hydraulic puller jack 7 to push the sleeve disc 804 to move towards the main shaft, the sleeve disc 804 also drives the shaft disc 9 to move towards the main shaft, until the rubber pad 10 is completely attached to the main shaft, then continue to use the hydraulic puller jack 7 to apply a pushing force, through the principle of action and reaction, the grinding disc chuck can be disassembled from the main shaft, then use the hanging rod 1, connecting rod 2, lifting buckle 3 and connecting ring 4 to lift the grinding disc chuck, at this time the grinding wheel can be disassembled, in the process of disassembling the grinding disc chuck, through the sliding design of the movable column 803 and the fixed disc 5, it can ensure that the grinding disc chuck is pulled out horizontally, effectively avoid the friction between the grinding disc chuck and the main shaft, cause the abnormal damage of the main shaft, the overall design is reasonable, convenient to use, and the grinding disc chuck dismounting assembly 8, the fixed disc 5, the shaft disc 9 and the hydraulic puller jack 7 are all detachable design, which is convenient for maintenance and assembly, and the use cost is lower.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel grinding wheel disassembly device, comprising a hanging rod (1) and a connecting ring (4), characterized in that: A fixed plate (5) is fitted inside the connecting ring (4). A connecting column (6) is fixedly installed at the top of the fixed plate (5). A hydraulic puller jack (7) is threadedly connected above the fixed plate (5) through the connecting column (6). A grinding wheel chuck disassembly assembly (8) is provided inside the fixed plate (5). A shaft counter plate (9) is provided at the lower part of the grinding wheel chuck disassembly assembly (8). A rubber gasket (10) is provided at the lower part of the shaft counter plate (9). The moving end of the grinding wheel chuck disassembly assembly (8) and the hydraulic puller jack (7) are fixedly connected by a main locking bolt (11). The grinding wheel chuck disassembly assembly (8) and the shaft counter plate (9) are fixedly connected by a secondary locking bolt (12). A threaded ring (13) is also provided at the lower part of the outer side of the fixed plate (5).

2. The novel grinding wheel disassembly device according to claim 1, characterized in that: A connecting rod (2) is fixedly installed at one end of the hanging rod (1), and a connecting ring (4) is fixedly installed at the other end of the hanging rod (1). A lifting buckle (3) is provided at the end of the connecting rod (2) away from the hanging rod (1).

3. The novel grinding wheel disassembly device according to claim 1, characterized in that: The grinding wheel chuck disassembly assembly (8) includes a movable disc (801), a connecting bolt (802), a movable column (803), and an outer disc (804). The movable disc (801) is sleeved on the outside of the connecting column (6). The movable column (803) is provided at the lower part of the movable disc (801). The outer disc (804) is fixedly installed at the end of the movable column (803) away from the movable disc (801). The movable column (803) and the movable disc (801) are fixedly connected by the connecting bolt (802).

4. The novel grinding wheel disassembly device according to claim 3, characterized in that: There are four identical connecting bolts (802) and movable columns (803). The four connecting bolts (802) and movable columns (803) are symmetrically distributed around the center line of the connecting column (6). The movable column (803) passes through the fixed plate (5) and extends into the interior of the fixed plate (5). The movable column (803) and the fixed plate (5) are slidably connected.

5. A novel grinding wheel disassembly device according to claim 4, characterized in that: The bottom ends of the fixed disk (5), the outer disk (804) and the shaft-aligning disk (9) are open. The vertical center lines of the fixed disk (5), the outer disk (804) and the shaft-aligning disk (9) are located on the same vertical line. The outer disk (804) and the shaft-aligning disk (9) are both located inside the fixed disk (5), and the shaft-aligning disk (9) is located inside the outer disk (804).

6. A novel grinding wheel disassembly device according to claim 5, characterized in that: The rubber gasket (10) is made of hard rubber. The rubber gasket (10) is bonded to the shaft disc (9). The main locking bolt (11) passes through the outer disc (804) and the fixing disc (5) and extends into the interior of the connecting column (6).

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