Elastic collar press-fitting device for needle bearing

Abstract

The utility model relates to the technical field of bearing accessories, in particular to an elastic check ring press-fitting device for a needle bearing. An elastic check ring belongs to spring steel and has high elasticity, the problems of risks such as pressing deviation and splashing, low pressing speed, low product quality and the like are easily caused during press fitting, and the elastic check ring is easily deformed, the clearance is small or a bearing is stuck due to excessive press-in. An elastic check ring press fitting device for a needle bearing comprises a positioning mechanism, a check ring and a bearing, the positioning mechanism is provided with a flat pressing mechanism, the flat pressing mechanism comprises a positioning plate and a pressing head, one end of the pressing head is provided with a notch for pressing, and the positioning plate is detachably connected with the pressing head; the positioning plate is sleeved with a guide column, and an anti-overpressure mechanism is arranged below the positioning mechanism. The tool is reasonable in structure, the elastic check ring can be accurately installed in the needle bearing more quickly and efficiently, and the requirements for easy operation, high efficiency and high quality are met while the elastic check ring is installed in the bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing accessories, and more specifically to a press-fitting device for an elastic retaining ring of a needle roller bearing. Background Art

[0002] Spherical needle roller bearing is a special needle roller bearing, also known as roller bearing. It is mainly composed of an outer ring with an outer spherical surface, an inner ring with a raised chamfer on the inner diameter, several needle rollers and two elastic retaining rings. Roller bearings are widely used in the transmission system of the automotive industry because of their flexible rotation, maintenance-free, compact structure, easy assembly, large load-bearing capacity, low noise, long life, good stability and many other advantages.

[0003] Elastic retaining rings are made of spring steel and have strong elasticity. When they are manually pressed, they are prone to dangers such as deviation and splashing. The pressing speed is slow and the product quality is low. At the same time, when pressing, excessive pressing is prone to occur, resulting in deformation of the elastic retaining ring, small clearance or bearing jamming. Utility Model Content

[0004] The purpose of the utility model is to provide a press-fitting device for elastic retaining rings for needle roller bearings which is easy to operate, high-efficiency and high-quality in view of the deficiencies in the prior art.

[0005] A press-fit device for an elastic retaining ring for a needle roller bearing comprises a positioning mechanism, a retaining ring and a bearing. The positioning mechanism is provided with a flat pressing mechanism, which comprises a positioning plate and a pressure head. A notch is provided at one end of the pressure head for pressing, and the positioning plate and the pressure head are detachably connected. A guide column is sleeved on the positioning plate, and an anti-overpressure mechanism is provided below the positioning mechanism. The lower end of the guide column is sleeved on the anti-overpressure mechanism. The positioning mechanism comprises a guide section, a transition section and a press-fit section. The utility model has a reasonable structure and can more quickly and efficiently install the elastic retaining ring correctly into the interior of the needle roller bearing, and can meet the requirements of easy operation, high efficiency and high quality while installing it into the interior of the bearing. And by adjusting the stroke of the pressure head, the press-fitting of elastic retaining rings of different heights and thicknesses can be met.

[0006] As a further improvement and supplement to the above solution, the utility model also includes the following additional technical features:

[0007] The overpressure prevention mechanism includes a bottom plate and an overpressure prevention positioning block, and the overpressure prevention positioning block is set higher than the bottom plate. The correct position of the press-fitting is ensured. An overpressure prevention mechanism is set at the bottom of the positioning block, which is integrated with the bottom plate and also realizes the coaxiality. When the elastic retaining ring is press-fitted, it can realize the bearing positioning function and prevent the elastic retaining ring from being over-pressed.

[0008] The positioning plate and the pressure head are connected by threads. A threaded hole is opened in the center of the flat pressing mechanism to realize rigid connection with the pressure head and realize coaxial center.

[0009] The number of guide pillars is 2, which ensures linear motion.

[0010] The guide section is a cone-shaped setting with a large top and a small bottom. The guiding effect is good, the elastic retaining ring gradually becomes smaller along the axial direction after entering the guide block, so that it can smoothly enter the bearing retaining ring groove.

[0011] The following beneficial effects can be achieved by using the utility model: the utility model has a reasonable structure, can more quickly and efficiently install the elastic retaining ring into the needle roller bearing, and can achieve the requirements of easy operation, high efficiency and high quality when installing the retaining ring into the bearing.

[0012] This device uses a manipulator to place the needle roller bearing under the positioning mechanism, and puts the elastic retaining ring above the positioning mechanism. By applying pressure to the flat pressing mechanism, the pressure head steadily presses the elastic retaining ring downward into the needle roller bearing under the action of the guide mechanism. By adjusting the stroke of the pressure head, it can meet the needs of press-fitting elastic retaining rings of different heights and thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 It is a top view of the utility model.

[0016] Figure 4 It is a left view of the utility model.

[0017] Figure 5 It is a structural schematic diagram of the positioning mechanism 3 in the utility model.

[0018] Figure 6 It is a structural schematic diagram of the overpressure prevention mechanism 4 in the utility model. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-6 As shown, the utility model is a press-fitting device for an elastic retaining ring for a needle roller bearing.

[0021] The circlip press-fitting device for needle roller bearings described in this embodiment comprises a positioning mechanism 3, a circlip 5 and a bearing 6. The positioning mechanism 3 is provided with a flat pressing mechanism 2, which comprises a positioning plate 21 and a pressure head 22. A notch is provided at one end of the pressure head 22 for pressing. The positioning plate 21 and the pressure head 22 are detachably connected. A guide column 1 is sleeved on the positioning plate 21. An overpressure prevention mechanism 4 is provided below the positioning mechanism 3. The lower end of the guide column 1 is sleeved on the overpressure prevention mechanism 4. The positioning mechanism 3 comprises a guide section 31, a transition section 32 and a press-fitting section 33. A bearing 6 with a clamp is placed in the press-fitting section 33. The diameter of the transition section 32 is consistent with the diameter of the small end of the guide section 31. The diameter of the press-fitting section 33 is larger than the diameter of the guide section 31. In this embodiment, the positioning mechanism 3 is a cylindrical structure.

[0022] The head of the pressing head is designed with a special cutout. When the circlip is pressed, the two sides of the opening of the circlip are displaced up and down along the cutout of the pressing head, so that the circlip can smoothly enter the positioning mechanism 3.

[0023] Furthermore, the overpressure prevention mechanism 4 includes a bottom plate 41 and an overpressure prevention positioning block 42, and the overpressure prevention positioning block 42 is arranged higher than the bottom plate 41. In this embodiment, the bottom plate 41 and the overpressure prevention positioning block 42 are an integrated structure.

[0024] Furthermore, the positioning plate 21 and the pressure head 22 are connected via threads.

[0025] Furthermore, the number of the guide pillars 1 is 2. The guide pillars 1 are located on the left and right sides and are symmetrically arranged.

[0026] Furthermore, the guide section 31 is configured as a tapered inner hole that is larger at the top and smaller at the bottom.

[0027] When the needle roller bearing circlip press-fitting device is used, the needle roller bearing is placed under the bearing positioning and circlip guide fixture, the circlip is placed on the bearing positioning and circlip guide fixture, and the circlip is pressed into the needle roller bearing by applying pressure to the pressure head.

[0028] This device uses a manipulator to place the needle roller bearing under the positioning mechanism, and puts the elastic retaining ring above the positioning mechanism. By applying pressure to the flat pressing mechanism, the pressure head steadily presses the elastic retaining ring downward into the needle roller bearing under the action of the guide mechanism. By adjusting the stroke of the pressure head, it can meet the needs of press-fitting elastic retaining rings of different heights and thicknesses.

[0029] The above are preferred implementations of the present invention, which do not limit the protection scope of the present invention. Any modifications and improvements made by those skilled in the art based on the design ideas of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A press-fitting device for a needle roller bearing with an elastic retaining ring, comprising a positioning mechanism (3), an elastic retaining ring (5) and a bearing (6), characterized in that: The positioning mechanism (3) is provided with a flat pressing mechanism (2), the flat pressing mechanism (2) comprising a positioning plate (21) and a pressing head (22), one end of the pressing head (22) being provided with a notch for pressing, and the positioning plate (21) and the pressing head (22) being detachably connected; a guide column (1) is sleeved on the positioning plate (21), an overpressure prevention mechanism (4) is provided below the positioning mechanism (3), and the lower end of the guide column (1) is sleeved on the overpressure prevention mechanism (4); the positioning mechanism (3) comprises a guide section (31), a transition section (32) and a pressing section (33); The overpressure prevention mechanism (4) comprises a bottom plate (41) and an overpressure prevention positioning block (42), wherein the overpressure prevention positioning block (42) is arranged higher than the bottom plate (41); The guide section (31) is in a conical shape with a larger top and a smaller bottom.

2. The press-fitting device for a needle roller bearing elastic retaining ring according to claim 1, characterized in that: The positioning plate (21) and the pressure head (22) are connected via threads.

3. The press-fitting device for the elastic retaining ring of the needle roller bearing according to claim 1, characterized in that: The number of the guide pillars (1) is 2.

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