Grinding equipment for bearing ring of needle bearing
By installing high wear-resistant rubber bolts on the inner wall of the bearing ring and using body vibration grinding equipment, the problem of high hardness but high brittleness during the grinding process is solved, breakage or cracks of the bearing ring is avoided, and its integrity and service life are ensured.
Patent Information
- Application Number
- CN202421427540.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
After the bearing ring is processed, the hardness is high but brittle. When grinding with a grinder, collisions between the bearing rings are prone to occur, resulting in breakage or cracks and scrapping.
A bearing ring grinding equipment for needle roller bearings is designed. By setting high wear-resistant rubber bolts on the inner wall of the bearing ring, fixing the bearing ring position, and using body vibration to vibrate the abrasive in the processing chamber to avoid collision of the bearing ring.
It effectively avoids fracture or cracks caused by vibration during the grinding process, ensuring the integrity and service life of the bearing ring.
Smart Images
Figure CN222661245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing production and processing, in particular to a bearing ring grinding device for a needle roller bearing. Background Art
[0002] Needle roller bearings are roller bearings with cylindrical rollers. Relative to their diameter, the rollers are thin and long. Such rollers are called needle rollers. Despite their small cross-section, the bearings still have a high load-bearing capacity. When their inner diameter size and load capacity are the same as those of other types of bearings, their outer diameter is the smallest. They are particularly suitable for support structures with limited radial mounting dimensions.
[0003] The bearing rings are usually formed directly by turning, casting or cold forging. There will be burrs or curling on the surface of the formed bearing rings, and they need to be polished before use. The existing polishing methods mostly use grinders with abrasives to polish large quantities of bearing rings. However, in actual use, since the bearing rings are not subjected to heat treatment or other methods to strengthen their own strength after processing, they are relatively hard but brittle. During the use of the grinder, it is inevitable that the bearing rings will collide with each other during vibration. If a large number of bearing rings are polished at the same time, the probability of collision is relatively high, and the bearing rings may break or crack, resulting in scrapping. Utility Model Content
[0004] The purpose of the utility model is to solve the following problems existing in the prior art:
[0005] In actual use, since the bearing rings are not subjected to heat treatment or other methods to strengthen their own strength after processing, they are inherently hard but brittle. During the use of the grinder, it is inevitable that the bearing rings will collide with each other during the vibration process. If a large number of bearing rings are ground at the same time, the probability of collision is high, and the bearing rings may break or crack, resulting in scrapping.
[0006] In order to solve the problems existing in the prior art, the utility model provides a bearing ring grinding device for a needle roller bearing, including a machine body, a processing chamber is arranged on the top of the machine body, an extension part is arranged inside the processing chamber, mounting grooves are opened on the top of the processing chamber and on the surface of the extension part, a mounting frame is clamped inside the mounting groove, a grille is arranged on the inner wall of the mounting frame, and a rubber plug is arranged on the surface of the grille.
[0007] The utility model provides a bearing ring grinding device for a needle roller bearing.
[0008] Furthermore, the extension portion inside the processing chamber is connected to the machine body, and the extension portion is cylindrical as a whole.
[0009] Furthermore, the processing chamber as a whole is a bowl-shaped structure, and an annular protrusion is provided on one side of the top close to the inner wall.
[0010] Furthermore, the mounting grooves are respectively arranged on the annular protrusion and the surface of the extended part of the inner wall of the processing chamber, and there are multiple mounting grooves, which are arranged radially.
[0011] Furthermore, the installation frame is a frame-like structure with a rectangular top and a bottom adapted to the inner wall of the processing chamber, the top of the installation frame extends to the outside of the processing chamber, and a pull rope is provided on the top.
[0012] Furthermore, the grille is a mesh grille composed of a plurality of cross-shaped bars, and a plurality of rectangular perforations are left on the surface of the grille.
[0013] Furthermore, the rubber plugs are arranged at each intersection of the grid, and the distance between every two rubber plugs is greater than the bearing ring.
[0014] Furthermore, the rubber plug is made of a highly wear-resistant rubber material, and the end thereof is spherical.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] When the utility model is used, the rubber plug arranged along the grille surface of the installation frame of the bearing ring is first inserted, the rubber plug supports the bearing ring on the inner wall of the bearing ring, and the bearing ring is fixed in position, and then the machine body is started, and the machine body causes the abrasive in the processing chamber to vibrate through the extension part, at which time the bearing ring sleeved on the outer side of the rubber plug will not be displaced due to the restriction of the rubber plug, and thus will not collide with each other, thus avoiding damage and breakage, and the abrasive in the processing chamber can pass through the grille in the installation frame during the vibration process, and will not block the movement of the abrasive, and at the same time, the contact area between the rubber plug and the bearing ring is small, and the abrasive can completely contact with the bearing ring without affecting the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a top view schematic diagram of the processing chamber of the utility model;
[0019] Figure 3 This is a schematic diagram of the installation frame of the utility model;
[0020] Figure numerals: 1, machine body; 2, processing chamber; 3, extension part; 4, mounting groove; 5, mounting frame; 6, grille; 7, rubber plug. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0022] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.
[0023] Example 1
[0024] like Figure 1-3 As shown, a needle bearing ring grinding device comprises a body 1, a processing chamber 2 is arranged on the top of the body 1, the processing chamber 2 is a bowl-shaped structure as a whole, and an annular protrusion is arranged on the side of the top close to the inner wall, an extension part 3 is arranged inside the processing chamber 2, the extension part 3 inside the processing chamber 2 is connected to the body 1, and the extension part 3 is cylindrical as a whole, and mounting grooves 4 are opened on the top of the processing chamber 2 and the surface of the extension part 3, and the mounting grooves 4 are respectively arranged on the annular protrusion on the inner wall of the processing chamber 2 and the surface of the extension part 3, and there are a plurality of mounting grooves 4, which are arranged radially, and the mounting grooves 4 are respectively arranged on the annular protrusion on the inner wall of the processing chamber 2 The surface of the rising and extending part 3 is provided with a plurality of mounting grooves 4 which are arranged radially. A mounting frame 5 is clamped inside the mounting groove 4. The mounting frame 5 is a frame-like structure with a rectangular top and a bottom that is adapted to the inner wall of the processing chamber 2. The top of the mounting frame 5 extends to the outside of the processing chamber 2, and a pull rope is arranged on the top. A grille 6 is arranged on the inner wall of the mounting frame 5. The grille 6 is a mesh grille composed of a plurality of cross-shaped rods, and a plurality of rectangular perforations are left on the surface of the grille 6. A rubber plug 7 is arranged on the surface of the grille 6. The rubber plug 7 is arranged at each intersection position of the grille 6, and the distance between each two rubber plugs 7 is greater than the bearing ring. The rubber plug 7 is made of a highly wear-resistant rubber material, and the end thereof is spherical.
[0025] Description of the working principle: First, insert the rubber plug 7 arranged on the surface of the grille 6 of the mounting frame 5 into the bearing ring. The rubber plug 7 supports the bearing ring on the inner wall of the bearing ring to fix the position of the bearing ring. Then insert the mounting frame 5 into the mounting groove 4, and fill the abrasive into the processing chamber 2. The machine body 1 causes the abrasive in the processing chamber 2 to vibrate through the extension part 3. At this time, the bearing ring sleeved on the outside of the rubber plug 7 will not be displaced due to the restriction of the rubber plug 7, so they will not collide with each other, avoiding damage and breakage.
[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A needle bearing ring grinding device, comprising a body (1), characterized in that: The machine body (1) is provided with a processing chamber (2) on the top, an extension portion (3) is provided inside the processing chamber (2), a mounting groove (4) is provided on the top of the processing chamber (2) and on the surface of the extension portion (3), a mounting frame (5) is clamped inside the mounting groove (4), a grille (6) is provided on the inner wall of the mounting frame (5), and a rubber plug (7) is provided on the surface of the grille (6).
2. The needle roller bearing ring grinding device according to claim 1, characterized in that: The extension part (3) inside the processing chamber (2) is connected to the machine body (1), and the extension part (3) is cylindrical as a whole.
3. The needle roller bearing ring grinding device according to claim 1, characterized in that: The processing chamber (2) is a bowl-shaped structure as a whole, and a circular protrusion is arranged on one side of the top close to the inner wall.
4. A needle roller bearing ring grinding device according to any one of claims 2-3, characterized in that: The mounting grooves (4) are respectively arranged on the annular protrusion on the inner wall of the processing chamber (2) and the surface of the extension part (3), and there are a plurality of mounting grooves (4) which are arranged radially.
5. The needle roller bearing ring grinding device according to claim 1, characterized in that: The installation frame (5) is a frame-like structure with a rectangular top and a bottom that fits the inner wall of the processing chamber (2). The top of the installation frame (5) extends to the outside of the processing chamber (2) and a pull rope is provided on the top.
6. The needle roller bearing ring grinding device according to claim 1, characterized in that: The grille (6) is a mesh grille composed of a plurality of cross-shaped bars, and a plurality of rectangular perforations are left on its surface.
7. The needle roller bearing ring grinding device according to claim 6, characterized in that: The rubber plugs (7) are arranged at each intersection of the grid (6), and the distance between every two rubber plugs (7) is greater than the bearing ring.
8. The needle roller bearing ring grinding device according to claim 1, characterized in that: The rubber plug (7) is made of a highly wear-resistant rubber material, and its end is spherical.