Four-point contact ball bearing rolling element removal device

Abstract

The present invention discloses a device for removing rolling elements of a four-point contact ball bearing, which comprises a disassembly table, a disassembly cylinder and a fixture. The disassembly cylinder and the fixture are both arranged on the disassembly table. The fixture includes a fixture column and a gripping head for gripping bearing steel balls. The gripping head is installed on the outer side wall of the lower end of the fixture column. The cylinder body of the disassembly cylinder is fixedly installed at a position on the disassembly table close to the disassembly cylinder, and the push rod is arranged towards the fixture column. The device for removing rolling elements of the four-point contact ball bearing of the present invention can effectively grasp the steel balls in the bearing through the setting of the gripping head, and then realize the stable and reliable disassembly of the steel balls by the pushing mode of the push rod of the disassembly cylinder.

Description

Technical Field

[0001] The present invention relates to a demolition device, and more specifically to a rolling element demolition device for four-point contact ball bearings. Background Art

[0002] For the demolition of the integral copper cage rolling elements of four-point contact ball bearings, the bearing is usually erected and dropped onto a rubber platform, and the rolling elements are separated from the cage by their own inertia. However, this method has certain drawbacks, resulting in contact damage on the contact surfaces of the raceway and rolling elements during subsequent inspection processes, and thus the accurate performance parameter evaluation of the bearing cannot be carried out. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a rolling element demolition device for four-point contact ball bearings that can disassemble the bearing more safely.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A rolling element demolition device for four-point contact ball bearings, including a disassembly table, a disassembly cylinder, and a fixture. The disassembly cylinder and the fixture are both arranged on the disassembly table. The fixture includes a fixture column and a gripping head for gripping the bearing steel balls. The gripping head is installed on the outer side wall of the lower end of the fixture column. The cylinder body of the disassembly cylinder is fixedly installed at a position on the disassembly table close to the disassembly cylinder, and the push rod is arranged towards the fixture column. During demolition, the bearing is sleeved on the fixture column and placed on the disassembly table. The gripping head grips the inner steel balls of the bearing, and the disassembly cylinder extends to push the push rod to move the bearing on the disassembly table.

[0005] As a further improvement of the present invention, the gripping head includes a gripping tube and an adsorption rubber head. One end of the gripping tube is installed on the outer side wall of the lower end of the fixture column. The adsorption rubber head is embedded in the end of the gripping tube facing away from the fixture column, and one end of the adsorption rubber head is a suction cup structure, and this suction cup structure is outside the gripping tube for sucking the steel balls inside the bearing.

[0006] As a further improvement of the present invention, an air passage is opened inside the adsorption rubber head. The fixture column is hollow, and a sealing piston is arranged in the fixture column in a liftable manner. The fixture column, the gripping tube, and the air passage are interconnected.

[0007] As a further improvement of the present invention, a push-pull rod is coaxially fixed to the upper end of the sealing piston. A push-pull disk is coaxially fixed to the upper end of the push-pull rod. A spring is coaxially sleeved on the push-pull rod. The upper end of the spring abuts against the lower end surface of the push-pull disk, and the lower end of the spring abuts against the upper end surface of the fixture column.

[0008] As a further improvement of the present invention, an adjustment hole is provided on the disassembly table, threaded adjustment pieces are fixed at the upper and lower ends of the adjustment hole, threads are provided on the outer side wall of the fixture column near the lower end, the fixture column is inserted into the adjustment hole and is threadedly connected to the threaded adjustment pieces, and an adjustment edge extends on the outer side wall of the upper end of the fixture column.

[0009] As a further improvement of the present invention, a push plate is fixedly connected to the push rod of the disassembly cylinder, and a clamping manipulator for clamping the outer side wall of the bearing is provided on the side of the push plate facing away from the cylinder body of the disassembly cylinder. This clamping manipulator is used to clamp the outer side wall of the bearing and drive the bearing to rotate.

[0010] As a further improvement of the present invention, the clamping manipulator includes a left clamping plate, a right clamping plate and a telescopic motor. The telescopic motor is a double-shaft motor, telescopic lead screws are coaxially fixed on two rotating shafts, and the body of this telescopic motor is fixedly installed at the center position of the push plate. The left clamping plate and the right clamping plate are slidably arranged at the left and right ends of the push plate, and the telescopic lead screws respectively penetrate into the left clamping plate and the right clamping plate to drive the left clamping plate and the right clamping plate to slide relatively or away from each other, so as to clamp or release the bearing.

[0011] As a further improvement of the present invention, both the left clamping plate and the right clamping plate are arc-shaped, and rolling shaft groups are rotatably provided on the opposite sides of the left clamping plate and the right clamping plate, and a drive motor for driving the rolling shaft group to rotate is fixed on the left clamping plate.

[0012] As a further improvement of the present invention, a driven plate is connected to the center position on the side of the push plate facing away from the disassembly cylinder through a spring, and a driven shaft group is rotatably provided on the side of the driven plate facing away from the push plate. When the push plate is clamped with the bearing by the cooperation of the left clamping plate and the right clamping plate, the driven shaft group abuts against the outer side wall of the bearing.

[0013] The beneficial effect of the present invention is that through the setting of the grasping head, the effect of effectively grasping the steel balls in the bearing can be achieved, and through the setting of the disassembly cylinder, the effect of pushing the bearing to slide through the push rod can be effectively achieved, so that the grasping head can grab the steel balls from the bearing. Compared with the existing technology, it is more stable and reliable during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the rolling element removal device for a four-point contact ball bearing of the present invention;

[0015] Figure 2 is Figure 1 the internal structural schematic diagram of the fixture column in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0017] Referring to Figures 1 to 2 As shown, a rolling element removal device for a four-point contact ball bearing according to this embodiment includes a disassembly table 1, a disassembly cylinder 2, and a fixture 3. The disassembly cylinder 2 and the fixture 3 are both arranged on the disassembly table 1. The fixture 3 includes a fixture column 31 and a gripping head 32 for gripping bearing steel balls. The gripping head 32 is installed on the outer side wall of the lower end of the fixture column 31. The cylinder body of the disassembly cylinder 2 is fixedly installed at a position on the disassembly table 1 close to the disassembly cylinder 2, and the push rod is arranged towards the fixture column 31. During disassembly, the bearing is sleeved on the fixture column 31 and placed on the disassembly table 1. The gripping head 32 grips the steel balls inside the bearing. The disassembly cylinder 2 extends to push the push rod to push the bearing to slide on the disassembly table. During the process of using the removal device in this embodiment, only by the action of the gripping head 32 can the steel balls inside the bearing be effectively grasped. When the gripping head 32 grasps the steel balls inside the bearing, only by extending the push rod of the disassembly cylinder 2 can the bearing be pushed to slide on the disassembly table 1, thereby achieving the effect of separating the steel balls from the bearing, and the separation process is more stable and reliable.

[0018] As a specific improvement embodiment, the gripping head 32 includes a gripping tube 321 and an adsorption rubber head 322. One end of the gripping tube 321 is installed on the outer side wall of the lower end of the fixture column 31. The adsorption rubber head 322 is embedded at one end of the gripping tube 321 facing away from the fixture column 31, and one end of the adsorption rubber head 322 is a suction cup structure, and this suction cup structure is outside the gripping tube 321 for sucking the steel balls inside the bearing. Through the above structure setting, the effect of grasping the bearing steel balls can be effectively achieved by setting the adsorption rubber head 322 in the gripping head 32 and then generating negative pressure through the adsorption rubber head 322. Such a structure is simple and easy to implement.

[0019] As a specific improvement embodiment, an air vent passage 323 is opened inside the adsorption rubber head 322. The fixture column 31 is hollow. A sealing piston 311 is arranged in the fixture column 31 in a liftable manner. The fixture column 31, the gripping tube 321, and the air vent passage 323 are interconnected. Through the above structure setting, the effect of generating negative pressure in the air vent passage 323 by the movement of the sealing piston 311 in the fixture column 31 can be effectively achieved.

[0020] As a specific embodiment of the improvement, a push-pull rod 312 is coaxially fixed to the upper end of the sealing piston 3l1, a push-pull disk 313 is coaxially fixed to the upper end of the push-pull rod 312, a spring is coaxially sleeved on the push-pull rod 312, the upper end of the spring abuts against the lower end surface of the push-pull disk 313, and the lower end of the spring abuts against the upper end surface of the fixture column 31. Through the arrangement of the push-pull disk 313 and the push-pull rod 312, the effect of driving the sealing piston 3l1 to slide up and down can be simply and effectively realized. At the same time, through the arrangement of the spring, when a negative pressure is generated by pulling up the sealing piston 311, due to other factors such as actual materials, it is impossible for the fixture column 31 to achieve an absolutely sealed effect. Therefore, by the action of the spring force, an upward pulling force can be provided to the sealing piston 311, so that the sealing piston 311 can effectively provide a continuous negative pressure effect.

[0021] As a specific embodiment of the improvement, an adjustment hole 11 is opened on the disassembly table 1, threaded adjustment pieces 12 are fixed to the upper and lower ends of the adjustment hole 11, threads are provided on the outer side wall of the fixture column 31 near the lower end, the fixture column 31 is inserted into the adjustment hole 11 and is threadedly connected to the threaded adjustment pieces 12, and an adjustment edge 314 extends on the outer side wall of the upper end of the fixture column 31. Through the arrangement of the above structure, the effect of adjusting the height of the grasping head 32 can be realized by the cooperation of the threaded adjustment pieces 12 and the fixture column 31, so that the disassembly device of this embodiment can be applied to more bearings of different sizes.

[0022] As a specific embodiment of the improvement, a push plate 21 is fixedly connected to the push rod of the disassembly cylinder 2, and a clamping manipulator 22 for clamping the outer side wall of the bearing is provided on the side of the push plate 21 facing away from the cylinder body of the disassembly cylinder 2. The clamping manipulator 22 is used to clamp the outer side wall of the bearing and drive the bearing to rotate. Through the arrangement of the clamping manipulator 22, after removing one steel ball, the negative pressure can be released by pressing down the push-pull rod 312, and then the second steel ball can be removed by rotating the bearing and grasping the adjacent steel ball by the grasping head 32.

[0023] As a specific embodiment of the improvement, the clamping manipulator 22 includes a left clamping plate 221, a right clamping plate 222 and a telescopic motor 223. The telescopic motor 223 is a double-shaft motor, and telescopic lead screws are coaxially fixed to the two rotating shafts. The body of the telescopic motor 223 is fixedly installed at the center of the push plate 21. The left clamping plate 221 and the right clamping plate 222 are slidably arranged at the left and right ends of the push plate 21, and the telescopic lead screws are respectively inserted into the left clamping plate 221 and the right clamping plate 222 to drive the left clamping plate 221 and the right clamping plate 222 to slide relative to or away from each other, so as to clamp or loosen the bearing. Through the arrangement of the above structure, the effect of constructing the clamping manipulator 22 can be effectively realized.

[0024] As a specific embodiment of the improvement, both the left clamping plate 221 and the right clamping plate 222 are arc-shaped. A rolling shaft group 4 is rotatably provided on one side of the left clamping plate 221 and the right clamping plate 222 facing each other. A driving motor 41 for driving the rotation of the rolling shaft group 4 is fixed on the left clamping plate 221. The rolling shaft group 4 in this embodiment is two roller shafts arranged side by side. There is a certain gap between the two roller shafts. Since the outer side wall of the bearing is arc-shaped, part of the outer side wall will enter the gap. In this way, the effect of clamping the outer side wall of the bearing can be achieved by the cooperation of the two roller shafts. And through the setting of the driving motor 41, the effect of driving the rolling shaft group 4 to roll can be effectively achieved. Therefore, by the action of the driving motor 41, when the left clamping plate 221 and the right clamping plate 222 cooperate to clamp the bearing, the rotation of the bearing can be realized by the rotation of the rolling shaft group 4, making the overall rotation process more stable and reliable. Among them, two driving motors 41 in this embodiment can be provided, which are respectively arranged on the left clamping plate 221 and the right clamping plate 222 to better drive the rotation of the bearing.

[0025] As a specific embodiment of the improvement, a driven plate 211 is connected by a spring at the center of the side of the push plate 21 facing away from the disassembly cylinder 2. A driven shaft group is rotatably provided on the side of the driven plate 211 facing away from the push plate 21. When the push plate 21 is clamped by the left clamping plate 221 and the right clamping plate 222 to hold the bearing, the driven shaft group abuts against the outer side wall of the bearing. Through the setting of the driven plate 211 and the driven shaft group, it can effectively cooperate with the rolling shaft group 4 on the left clamping plate 221 and the right clamping plate 222 to better clamp the outer side wall of the bearing.

[0026] In summary, the disassembly device of this embodiment first uses the grasping head 32 to grasp the steel balls of the bearing, and then realizes the smooth and reliable disassembly of the steel balls from the bearing by the pushing of the push rod of the disassembly cylinder 2.

[0027] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A rolling element removal device for a four-point contact ball bearing, comprising a disassembly table (1), a disassembly cylinder (2) and a fixture (3), wherein the disassembly cylinder (2) and the fixture (3) are both arranged on the disassembly table (1), and it is characterized in that: The fixture (3) includes a fixture column (31) and a gripping head (32) for gripping bearing steel balls. The gripping head (32) is installed on the outer side wall of the lower end of the fixture column (31). The cylinder block of the disassembling cylinder (2) is fixedly installed at a position on the disassembling table (1) close to the disassembling cylinder (2). The push rod is arranged towards the fixture column (31). During disassembly, the bearing sleeve is placed on the fixture column (31) and on the disassembling table (1). The gripping head (32) grips the steel balls inside the bearing. The disassembling cylinder (2) extends the push rod to push the bearing to slide on the disassembling table. A push plate (21) is fixedly connected to the push rod of the disassembling cylinder (2). On the side of the push plate (21) facing away from the cylinder block of the disassembling cylinder (2), there is a clamping manipulator (22) for clamping the outer side wall of the bearing. This clamping manipulator (22) is used to clamp the outer side wall of the bearing and then drive the bearing to rotate. The clamping manipulator (22) includes a left clamping plate (221), a right clamping plate (222), and a telescopic motor (223). The telescopic motor (223) is a double-shaft motor. Telescopic lead screws are coaxially fixed on the two rotating shafts. The body of this telescopic motor (223) is fixedly installed at the center position of the push plate (21). The left clamping plate (221) and the right clamping plate (222) are slidably arranged at the left and right ends of the push plate (21). The telescopic lead screws are respectively inserted into the left clamping plate (221) and the right clamping plate (222) to drive the left clamping plate (221) and the right clamping plate (222) to slide relatively or away from each other, thereby clamping or loosening the bearing. The left clamping plate (221) and the right clamping plate (222) are both arc-shaped. On the side of the left clamping plate (221) and the right clamping plate (222) facing each other, there is a rolling shaft group (4) rotatably arranged. A driving motor (41) for driving the rolling shaft group (4) to rotate is fixed on the left clamping plate (221).

2. The rolling element removal device for a four-point contact ball bearing according to claim 1, wherein: The gripping head (32) includes a gripping tube (321) and an adsorption rubber head (322). One end of the gripping tube (321) is installed on the outer side wall of the lower end of the fixture column (31). The adsorption rubber head (322) is embedded at one end of the gripping tube (321) facing away from the fixture column (31), and one end of this adsorption rubber head (322) is a suction cup structure, and this suction cup structure is outside the gripping tube (321) for sucking the steel balls inside the bearing.

3. The rolling element removal device for four-point contact ball bearings according to claim 2, characterized in that: An air passage (323) is opened inside the adsorption rubber head (322). The fixture column (31) is hollow. A sealing piston (311) is arranged in the fixture column (31) in a liftable manner. The fixture column (31), the gripping tube (321), and the air passage (323) are interconnected.

4. The rolling element removal device for a four-point contact ball bearing according to claim 3, wherein: A push-pull rod (312) is coaxially fixed to the upper end of the sealing piston (311). A push-pull disc (313) is coaxially fixed to the upper end of the push-pull rod (312). A spring is coaxially sleeved on the push-pull rod (312). The upper end of the spring abuts against the lower end surface of the push-pull disc (313), and the lower end of the spring abuts against the upper end surface of the fixture column (31).

5. The rolling element removal device for four-point contact ball bearings according to claim 4, characterized in that: The disassembling table (1) is provided with an adjusting hole (11). Thread adjusting pieces (12) are fixed at the upper and lower ends of the adjusting hole (11). Threads are provided on the outer side wall of the fixture column (31) near the lower end. The fixture column (31) is inserted into the adjusting hole (11) and is in threaded connection with the thread adjusting pieces (12). An adjusting edge (314) extends on the outer side wall of the upper end of the fixture column (31).

6. The rolling element removal device for four-point contact ball bearings according to claim 5, characterized in that: A driven plate (211) is connected by a spring at the center of the side of the pushing plate (21) facing away from the disassembling cylinder (2). A driven shaft group is rotatably provided on the side of the driven plate (211) facing away from the pushing plate (21). When the pushing plate (21) is clamped by the left clamping plate (221) and the right clamping plate (222) to hold the bearing, the driven shaft group abuts against the outer side wall of the bearing.

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