Wheel axle grinding machine tool

Abstract

The utility model discloses a wheel axle grinding machine tool, which relates to the technical field of hub processing, and comprises a bearing disc, four telescopic arms in a vertical angle circular array are arranged below the bearing disc, a driving box is arranged below the bearing disc, and the outer surface of each telescopic arm is fixedly connected with a protective shell. The wheel dull polish device is reasonable in design structure, when the bearing disc is tightly attached to the surface of a wheel, the telescopic arm can drive the protective shell and the grinding wheel to be attached to the surface of the wheel together through cooperation of the bearing disc, the telescopic arm, the protective shell, the grinding wheel and the dull polish strip, and the bearing disc drives the wheel and an axle to rotate at a high speed; when the cutting knife encounters a sudden hole, offset friction force between the cutting knife and the axle is increased, so that resistance of the axle and wheels is increased, the resistance is larger than friction force between the frosted strip and the grinding wheel at the moment, the rotating speed of the wheels and the axle is lower than that of the bearing disc, the resistance of the cutting knife is reduced, and the service life of the cutting knife is prolonged. And therefore, the conditions of tool collision and tool breakage are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing, in particular to a wheel axle grinding machine tool. Background Art

[0002] At present, due to the interference fit between the wheels and axles of the train, special tooling or hydraulic devices are required for disassembly. During the disassembly process, the minimum force required for disassembly needs to be estimated based on the installation force required for the bearing to overcome the interference fit. Therefore, in order to shorten the time for refurbishing train wheels and axles, the wheels and axles are usually polished and cut simultaneously.

[0003] Usually, the wheel and axle are fixed before grinding. In order to prevent the center of the wheel and axle from shifting during cutting, the wheel and axle are tightly clamped. However, new problems arise. Since there are screw holes and other irregular holes reserved for installation on the surface of the wheel and axle, when the cutting knife moves quickly, the irregular holes that appear instantly on the grinding body will cause the blade to resonate. If the resonance frequency is too high, the machine tool will hit the knife or break the knife. To this end, we provide a wheel axle grinding machine to solve the above problems. Summary of the invention

[0004] 1) Technical issues solved

[0005] The utility model aims to make up for the deficiencies of the prior art and provides a wheel axle grinding machine.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel axle grinding machine, comprising a carrying plate, four telescopic arms in a vertically angled circular array are arranged below the carrying plate, a drive box is arranged below the carrying plate, the outer surface of the telescopic arm is fixedly connected to a protective shell, and a grinding wheel and a grinding strip are respectively arranged inside the protective shell.

[0008] Furthermore, the outer surface of the telescopic arm is fixedly connected to a slide rod and a machine strip, the bottom surface of the supporting plate is fixedly connected to a disc, the bottom end of the disc is rotatably connected to a gear 1, the outer surface of the gear 1 and the outer surface of the machine strip are meshed with each other, and the outer surface of the slide rod 1 is slidably connected to the inner wall of the machine strip.

[0009] Furthermore, a protection rail is fixedly connected to the outer surface of the machine bar, a slide is slidably connected to the outer surface of the protection rail, and the outer surface of the slide is fixedly connected to the bottom surface of the carrier plate.

[0010] Furthermore, the bottom surface of the gear one is rotatably connected to a base frame, the outer surface of the base frame is fixedly connected to a load-bearing rod, the top end of the load-bearing rod is fixedly connected to the bottom surface of the carrier plate, the bottom surface of the base frame is fixedly connected to a rotating frame, the bottom surface of the rotating frame is rotatably connected to the outer surface of a driving box, a motor is installed inside the driving box, and the output end of the motor is fixedly connected to the bottom surface of the base frame.

[0011] Furthermore, the protective shell is rotatably connected to a contact wheel, the inner side of the contact wheel is provided with teeth, the grinding wheel is rotatably connected to the inner surface of the protective shell, the grinding wheel is fixedly connected to a gear 2 on a side away from the protective shell, and the outer surface of the gear 2 is meshed with the outer surface of the teeth.

[0012] Furthermore, the inner top wall of the protective shell is fixedly connected to a fixing plate, the inner wall of the fixing plate is slidably connected to an extension rod, one end of the extension rod is fixedly connected to the outer surface of the frosted strip, the outer surface of the extension rod is provided with a flange, and the outer surface of the extension rod is sleeved with a spring.

[0013] Furthermore, a tightening rod is fixedly connected to the outer surface of one of the telescopic arms, and a fixing seat is slidably connected to the outer surface of the tightening rod, and the outer surface of the fixing seat is fixedly connected to the bottom surface of the carrying plate, and one end of the tightening rod is fixedly connected to a limiting plate, and a spring 2 is sleeved on the outer surface of the tightening rod, and one end of the spring 2 is fixedly connected to the outer surface of the limiting plate, and the other end of the spring 2 is fixedly connected to the outer surface of the fixing seat.

[0014] III) Beneficial effects:

[0015] Compared with the prior art, the wheel axle grinding machine has the following beneficial effects:

[0016] The utility model cooperates between the carrying plate, the telescopic arm, the protective shell, the grinding wheel and the grinding strip. When the carrying plate is tightly attached to the surface of the wheel, the telescopic arm can drive the protective shell and the grinding wheel to be close to the surface of the wheel. The carrying plate drives the wheel and the axle to rotate at a high speed. When the cutting knife encounters a hole that suddenly appears, the cutting knife will increase the offset friction with the axle, thereby increasing the resistance of the axle and the wheel. At this time, the resistance will be greater than the friction between the grinding strip and the grinding wheel, thereby making the rotation speed of the wheel and the axle lower than the carrying plate itself, thereby reducing the resistance of the cutting knife, and thus reducing the occurrence of knife collision and knife breakage.

[0017] The utility model cooperates between the second spring, the limit plate, the tightening rod and the telescopic arm. The second spring can always push the limit plate, so that the limit plate can drive the telescopic arm to move into the inside of the equipment through the tightening rod. When the telescopic arm moves inward, it can drive all other telescopic arms to move together, thereby being able to fix wheels of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the protective shell in the utility model;

[0021] Figure 4 It is a schematic diagram of the transmission structure in the utility model.

[0022] In the figure: 1. carrier plate; 2. telescopic arm; 3. protective shell; 4. grinding wheel; 5. grinding strip; 6. slide bar 1; 7. machine strip; 8. disc; 9. gear 1; 10. protection rail; 11. slide; 12. base frame; 13. load-bearing rod; 14. rotating frame; 15. motor; 16. contact wheel; 17. teeth; 18. gear 2; 19. fixed plate; 20. extension rod; 21. flange; 22. spring 1; 23. tightening rod; 24. fixed seat; 25. limit plate; 26. spring 2; 27. drive box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-4 As shown, the utility model provides a technical solution: a wheel axle grinding machine, comprising a supporting plate 1, four telescopic arms 2 in a vertically angled circular array are arranged below the supporting plate 1, a driving box 27 is arranged below the supporting plate 1, the outer surface of the telescopic arm 2 is fixedly connected to a protective shell 3, and a grinding wheel 4 and a grinding strip 5 are respectively arranged inside the protective shell 3. When the supporting plate 1 is tightly attached to the surface of the wheel, the telescopic arm 2 can drive the protective shell 3 and the grinding wheel 4 to be close to the surface of the wheel, and the supporting plate 1 drives the wheel and the axle to rotate at a high speed. When the cutting knife encounters a hole that suddenly appears, the cutting knife will increase the offset friction with the axle, thereby increasing the resistance of the axle and the wheel. At this time, the resistance will be greater than the friction between the grinding strip 5 and the grinding wheel 4, thereby making the rotation speed of the wheel and the axle lower than the supporting plate 1 itself, thereby reducing the resistance of the cutting knife, and thereby reducing the occurrence of knife collision and knife breakage.

[0025] The outer surface of the telescopic arm 2 is fixedly connected with a slide bar 6 and a machine strip 7, the bottom surface of the supporting plate 1 is fixedly connected with a disc 8, the bottom end of the disc 8 is rotatably connected with a gear 9, the outer surface of the gear 9 and the outer surface of the machine strip 7 are meshed with each other, the outer surface of the slide bar 6 and the inner wall of the machine strip 7 are slidably connected, the inside of the disc 8 is filled with copper, because the density of copper is heavier than that of steel, so when the supporting plate 1 rotates at high speed, the disc 8 plays a certain stability, when any telescopic arm 2 moves, it can drive all other telescopic arms 2 to move together through the machine strip 7 and the gear 9.

[0026] The outer surface of the machine strip 7 is fixedly connected to a protective rail 10, and the outer surface of the protective rail 10 is slidably connected to a slide 11. The outer surface of the slide 11 is fixedly connected to the bottom surface of the supporting plate 1. When the machine strip 7 moves, it can drive the protective rail 10 to slide on the slide 11. The slide 11 is located between the slide 11 and the machine strip 7, and a linear bearing is installed to ensure that the machine strip 7 remains stable when moving.

[0027] The bottom surface of gear 19 is rotatably connected to the base frame 12, and the outer surface of the base frame 12 is fixedly connected to the load-bearing rod 13, and the top of the load-bearing rod 13 is fixedly connected to the bottom surface of the carrying plate 1, and the bottom surface of the base frame 12 is fixedly connected to the rotating frame 14, and the bottom surface of the rotating frame 14 is rotatably connected to the outer surface of the driving box 27. A motor 15 is installed inside the driving box 27, and the output end of the motor 15 is fixedly connected to the bottom surface of the base frame 12. The motor 15 can drive the carrying plate 1 to rotate at a high speed through the base frame 12. When the base frame 12 rotates, the rotating frame 14 can provide a supporting function for the carrying plate 1, and the load-bearing rod 13 can share the weight of the carrying plate 1.

[0028] The protective shell 3 is internally rotatably connected to a contact wheel 16, an inner side of which is provided with teeth 17, a grinding wheel 4 is rotatably connected to the inner surface of the protective shell 3, a side of the grinding wheel 4 which is located away from the protective shell 3 and is fixedly connected to a gear 2 18, an outer surface of the gear 2 18 and an outer surface of the teeth 17 are meshed with each other, a rubber ring is sleeved on the surface of the contact wheel 16, the rubber ring can increase the friction between the contact wheel 16 and the wheel body, and when the contact wheel 16 rotates, it can drive the gear 2 18 through the machine bar 7 to drive the grinding wheel 4 to rotate together.

[0029] The inner top wall of the protective shell 3 is fixedly connected with a fixing plate 19, and the inner wall of the fixing plate 19 is slidably connected with an extension rod 20. One end of the extension rod 20 is fixedly connected to the outer surface of the frosting strip 5. The outer surface of the extension rod 20 is provided with a flange 21. The outer surface of the extension rod 20 is sleeved with a spring 22. The spring 22 can always push the flange 21 to ensure that the flange 21 can drive the extension rod 20 to stay as far away from the frosting strip 5 as possible. The extension rod 20 can pull the frosting strip 5 when moving, thereby increasing the friction between the frosting strip 5 and the grinding wheel 4.

[0030] The outer surface of the telescopic arm 2 is fixedly connected with a tightening rod 23, and the outer surface of the tightening rod 23 is slidably connected with a fixing seat 24, the outer surface of the fixing seat 24 is fixedly connected to the bottom surface of the carrying plate 1, one end of the tightening rod 23 is fixedly connected to the limiting plate 25, and the outer surface of the tightening rod 23 is sleeved with a spring 26, one end of the spring 26 is fixedly connected to the outer surface of the limiting plate 25, and the other end of the spring 26 is fixedly connected to the outer surface of the fixing seat 24, the spring 26 can always push the limiting plate 25, so that the limiting plate 25 can drive the telescopic arm 2 to move into the inside of the equipment through the tightening rod 23, when the telescopic arm 2 moves inward, it can drive all other telescopic arms 2 to move together, so as to fix wheels of different diameters.

[0031] Working principle: When the equipment is needed, first place the equipment horizontally and install it in a fixed position on the grinding machine, and align the wheel with the carrier plate 1. The spring 26 pushes the limit plate 25 to make the tightening rod 23 drive the telescopic arm 2 to move inward until the contact wheel 16 is close to the outer surface of the wheel. Then turn on the motor 15, and the motor 15 drives the carrier plate 1 and the telescopic arm 2 to make the wheel start to rotate. At this time, the cutting knife begins to contact the wheel. At the beginning of contact, due to the large friction between the cutting knife and the axle, the resistance of the axle increases and its speed is reduced. When the resistance of the axle and the wheel is greater than the sum of the friction of the four friction wheels and the four friction strips, the friction wheel will start to rotate, so that the speed of the wheel is lower than that of the carrier plate 1. When the friction between the axle and the cutting knife tends to be stable, the resistance of the axle will gradually be lower than the sum of the friction of the four friction wheels and the four friction strips, so that the speed of the friction wheel is gradually reduced to a stop, so that the speed of the wheel and the axle gradually becomes consistent with the speed of the carrier plate 1.

Claims

1. A wheel axle grinding machine, comprising a carrier plate (1), characterized in that: Four telescopic arms (2) in a vertical circular array are arranged below the carrier plate (1); a drive box (27) is arranged below the carrier plate (1); a protective shell (3) is fixedly connected to the outer surface of the telescopic arm (2); and a grinding wheel (4) and a grinding strip (5) are respectively arranged inside the protective shell (3).

2. A wheel axle grinding machine according to claim 1, characterized in that: The outer surface of the telescopic arm (2) is fixedly connected to a slide rod (6) and a machine strip (7); the bottom surface of the supporting plate (1) is fixedly connected to a disc (8); the bottom end of the disc (8) is rotatably connected to a gear (9); the outer surface of the gear (9) and the outer surface of the machine strip (7) are meshed with each other; the outer surface of the slide rod (6) and the inner wall of the machine strip (7) are slidably connected.

3. A wheel axle grinding machine according to claim 2, characterized in that: The outer surface of the machine bar (7) is fixedly connected to a protection rail (10), the outer surface of the protection rail (10) is slidably connected to a slide frame (11), and the outer surface of the slide frame (11) is fixedly connected to the bottom surface of the carrier plate (1).

4. A wheel axle grinding machine according to claim 2, characterized in that: The bottom surface of the gear 1 (9) is rotatably connected to a base frame (12), the outer surface of the base frame (12) is fixedly connected to a load-bearing rod (13), the top end of the load-bearing rod (13) is fixedly connected to the bottom surface of the carrier plate (1), the bottom surface of the base frame (12) is fixedly connected to a rotating frame (14), the bottom surface of the rotating frame (14) is rotatably connected to the outer surface of a driving box (27), a motor (15) is installed inside the driving box (27), and the output end of the motor (15) is fixedly connected to the bottom surface of the base frame (12).

5. The wheel axle grinding machine according to claim 1, characterized in that: A contact wheel (16) is rotatably connected inside the protective shell (3), and teeth (17) are arranged on the inner side of the contact wheel (16). The grinding wheel (4) is rotatably connected to the inner surface of the protective shell (3), and a second gear (18) is fixedly connected to a side of the grinding wheel (4) that is away from the contact with the protective shell (3), and the outer surface of the second gear (18) is meshed with the outer surface of the teeth (17).

6. A wheel axle grinding machine according to claim 5, characterized in that: The inner top wall of the protective shell (3) is fixedly connected to a fixing plate (19), the inner wall of the fixing plate (19) is slidably connected to an extension rod (20), one end of the extension rod (20) is fixedly connected to the outer surface of the frosting strip (5), the outer surface of the extension rod (20) is provided with a flange (21), and the outer surface of the extension rod (20) is sleeved with a spring 1 (22).

7. The wheel axle grinding machine according to claim 1, characterized in that: The outer surface of one of the telescopic arms (2) is fixedly connected to a tightening rod (23), the outer surface of the tightening rod (23) is slidably connected to a fixing seat (24), the outer surface of the fixing seat (24) is fixedly connected to the bottom surface of the supporting plate (1), one end of the tightening rod (23) is fixedly connected to a limiting plate (25), the outer surface of the tightening rod (23) is sleeved with a second spring (26), one end of the second spring (26) is fixedly connected to the outer surface of the limiting plate (25), and the other end of the second spring (26) is fixedly connected to the outer surface of the fixing seat (24).

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