Plastic retainer for new energy automobile bearing

Abstract

The utility model discloses a plastic retainer for a new energy automobile bearing in the technical field of bearing retainers, which comprises a retainer body, the retainer body is annular, a plurality of ball pockets are arranged on one end face of the retainer body, the ball pockets are communicated with the inner side wall and the outer side wall of the retainer body, and a driving cavity is arranged on the end face of the retainer body. The extending direction of the driving cavities is perpendicular to the upper end face of the retainer body, the driving cavities are evenly distributed in the circumferential direction of the retainer body, and the driving cavities and the ball pockets are distributed at intervals. The two sides of each driving cavity are perpendicularly connected with abutting cavities in a penetrating mode, the sides, away from the driving cavities, of the abutting cavities communicate with the ball pockets, lifting cavities are formed in the retainer body, and the lifting cavities and the abutting cavities are perpendicularly communicated and are the same in number; abutting columns are slidably connected into the abutting cavities, fixing columns are slidably connected into the lifting cavities, the fixing columns are located above the abutting columns, and after the balls are installed in the ball pockets, the driving blocks are inserted into the driving cavities and drive the abutting columns on the two sides to abut against the balls so as to prevent the balls from being separated from the ball pockets.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing retainers, in particular to a plastic retainer for new energy vehicle bearings. Background Art

[0002] The existing Chinese patent with application number CN202123431526.X discloses a plastic retainer for new energy vehicle bearings, which adopts the technical solution of "a plurality of fixing devices are arranged on the connecting plate, the fixing device includes a limit block, a sliding groove is provided on the side of the connecting plate close to the extended card plate, the limit block is slidably matched with the sliding groove, a limiting groove is provided on the side of the extended card plate close to the limit block, the limit block can be inserted into the limit groove, and an installation groove is provided on the side of the sliding groove away from the limit groove, and a driving mechanism for driving the limit block to move is arranged in the installation groove", so as to achieve the effect of "when the connecting plate is corroded by lubricating oil, the limit block is driven to move by the driving mechanism, and when the limit block is separated from the limit groove, it is convenient to release the fixing of the connecting plate by the fixing device, and then it is convenient to replace the connecting plate".

[0003] However, the structure adopts a screw rod and a slider, which not only has a poor fixing effect, but also has a high manufacturing cost due to its small size. Therefore, the application prospect of this technical solution in actual production is limited. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic retainer for new energy vehicle bearings, so as to solve the problem that the above-mentioned structure adopts a screw rod and a slider, which not only has a poor fixing effect, but also has a high manufacturing cost due to its small size. Therefore, this technical solution has limited application prospects in actual production.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plastic cage for a new energy vehicle bearing comprises a cage body, the cage body is in a circular shape, and a plurality of ball pockets are provided on one end surface, the ball pockets are connected to the inner side wall and the outer side wall of the cage body, a drive cavity is provided on the end surface of the cage body, the drive cavity and the ball pockets are located on the same end surface of the cage body, the extension direction of the drive cavity is perpendicular to the upper end surface of the cage body, and is evenly distributed along the circumference of the cage body, and the drive cavity and the ball pockets are distributed at intervals;

[0007] Each of the two sides of the driving cavity is vertically connected with a top cavity, the top cavity is provided on the retainer body, and the side away from the driving cavity is connected with the ball pocket, and the retainer body is provided with a lifting cavity, the lifting cavity is vertically connected with the top cavity, and the number of the lifting cavity is the same;

[0008] A pushing column is slidably connected in the pushing cavity, and a fixed column is slidably connected in the lifting cavity. The fixed column is located above the pushing column. After the ball is installed in the ball pocket, the driving block is inserted into the driving cavity and drives the pushing columns on both sides to push the ball to prevent the ball from escaping from the ball pocket.

[0009] As a further solution of the utility model: the abutting column and the fixed column are both cylindrical structures, and a fixing cavity is opened on the side of the abutting column. The fixing cavity matches the fixed column. When the abutting column contacts the ball, the fixing cavity is located directly below the fixed column. Under the action of gravity, the fixed column falls into the fixing cavity to fix the position of the abutting column.

[0010] As a further solution of the utility model: a return mechanism is provided on the fixed column, and a return cavity corresponding to the lifting cavity is provided in the retaining frame body, the width of the return cavity is larger than the lifting cavity, and the upper end passes through the upper end surface of the retaining frame body; the return mechanism is located in the return cavity, and includes a limit block, a spring and a base, the limit block is fixedly mounted on the upper end surface of the fixed column and is slidably connected to the return cavity; one end of the spring is fixedly mounted on the side of the limit block away from the fixed column, and the other end is fixedly connected to the base, the base is used to block the opening of the lifting cavity and press the spring, and when the fixed cavity is located directly below the fixed column, the spring drives the fixed column to be inserted into the fixed cavity through the limit block to fix the position of the abutting column.

[0011] As a further solution of the utility model: the driving block and the driving cavity are both rectangular structures and are slidably connected. The driving block is provided with driving surfaces on two side surfaces close to the two abutting columns. The driving surfaces are located on the lower side of the driving block. The end of the abutting column close to the driving block is provided with a connecting surface with the same inclination angle as the driving surface. When the driving block is close to the abutting columns on both sides, the driving surface is slidably connected with the connecting surface to realize the synchronous driving of the two abutting columns by the driving block.

[0012] As a further solution of the utility model: an end of the abutting column away from the connecting surface is provided with an abutting surface matching the outer surface of the ball, so as to achieve stable abutment of the ball by the abutting column.

[0013] As a further solution of the utility model: a plurality of limit columns are provided on the outer surface of the top column, the side surface of the limit column is arc-shaped, and a limit groove corresponding to and matching the plurality of limit columns is opened in the top cavity. The plurality of limit columns slide along the limit groove to maintain the stability of the top column during the sliding process along the top cavity.

[0014] As a further solution of the utility model: a moving block is fixedly connected to the upper end of the driving block, and the moving block is used to move the driving block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model only needs to clamp the ball into the ball pocket, but since the retainer body is made of plastic, there is a risk that the ball will escape from the ball pocket.

[0017] The connection surface of the utility model can slide with the driving surface, and because the abutting cavity and the driving cavity are vertically connected, the driving block can drive the abutting columns on both sides to slide synchronously.

[0018] When the push-up column of the utility model contacts the ball, the fixing cavity is located directly below the fixing column. Under the action of gravity, the fixing column falls into the fixing cavity to fix the position of the push-up column. The above scheme not only has a good fixing effect, but also has a low manufacturing cost and can be applied in actual production.

[0019] The spring in the compressed state of the utility model can apply pressure to the fixed column through the limit block. When the fixed cavity moves to the bottom of the fixed column, the spring can drive the fixed column to be inserted into the fixed cavity through the limit block to fix the top column. The setting of the base can facilitate the installation of the spring and the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the driving block in the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model when the ball is not pressed against the top;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 It is a schematic diagram of the local structure of the utility model when the ball is pressed against the top;

[0025] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the supporting column and the fixing column in the utility model;

[0027] Figure 8 It is a side view of the top support column in the utility model;

[0028] Fig. 9 It is a schematic diagram of the partial structure of another situation in the utility model when the ball is not pressed against the top;

[0029] Fig.10 It is a schematic diagram of the local structure when abutting against a ball in another situation of the utility model.

[0030] In the figure: 1. retaining frame body; 11. driving chamber; 12. abutting chamber; 13. limiting groove; 14. lifting chamber; 15. returning chamber; 2. ball pocket; 3. driving block; 31. driving surface; 4. abutting column; 41. connecting surface; 42. abutting surface; 43. fixing chamber; 5. limiting column; 6. moving block; 7. fixing column; 8. returning mechanism; 81. limiting block; 82. spring; 83. base. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1

[0033] Plastic cages for new energy vehicle bearings, such as Figure 1-Figure 10 As shown, it includes a retainer body 1, which is in a circular ring shape and has a plurality of ball pockets 2 on one end surface. The ball pockets 2 are connected to the inner wall and the outer wall of the retainer body 1. When working, it is only necessary to insert the ball into the ball pocket 2. However, since the retainer body 1 is made of plastic, there is a risk that the ball will fall out of the ball pocket 2.

[0034] In this embodiment: a drive cavity 11 is opened on the end face of the retaining frame body 1, and the drive cavity 11 and the ball pocket 2 are located on the same end face of the retaining frame body 1. The extension direction of the drive cavity 11 is perpendicular to the upper end face of the retaining frame body 1, and is evenly distributed along the circumference of the retaining frame body 1, and the drive cavity 11 and the ball pocket 2 are spaced apart.

[0035] In the present embodiment: each driving cavity 11 is vertically connected with a top cavity 12 on both sides, the top cavity 12 is provided on the retaining frame body 1, and the side away from the driving cavity 11 is connected with the ball pocket 2, and a lifting cavity 14 is provided in the retaining frame body 1, the lifting cavity 14 is vertically connected with the top cavity 12, and the number of the lifting cavity 14 is the same.

[0036] In this embodiment: the driving block 3 and the driving cavity 11 are both rectangular structures and are slidably connected. The setting of the rectangular structure facilitates the driving block 3 to slide stably along the driving cavity 11 without deviation. The resisting column 4 is slidably connected in the resisting cavity 12. The driving block 3 can drive the resisting columns 4 on both sides to slide synchronously along the resisting cavity 12. The driving block 3 will not deviate, which is convenient for driving the resisting columns 4.

[0037] In this embodiment, a moving block 6 is fixedly connected to the upper end of the driving block 3 , and the moving block 6 is used to move the driving block 3 to drive the abutting column 4 .

[0038] In this embodiment: driving surfaces 31 are provided on the two side surfaces of the driving block 3 close to the two abutting columns 4, and the driving surfaces 31 are located on the lower side of the driving block 3. A connecting surface 41 with the same inclination angle as the driving surface 31 is provided on the end of the abutting columns 4 close to the driving block 3. When the driving block 3 is tightly attached to the abutting columns 4 on both sides, the driving surface 31 is slidably connected with the connecting surface 41 to realize the synchronous driving of the two abutting columns 4 by the driving block 3. With such arrangement, the connecting surface 41 can slide with the driving surface 31, and because the abutting cavity 12 is vertically connected with the driving cavity 11, the driving block 3 can drive the abutting columns 4 on both sides to slide synchronously.

[0039] In this embodiment: the end of the abutting column 4 away from the connecting surface 41 is provided with an abutting surface 42 matching the outer surface of the ball, so as to achieve stable abutment of the ball by the abutting column 4. After the ball is installed in the ball pocket 2, the driving block 3 is inserted into the driving cavity 11, and drives the abutting columns 4 on both sides to abut the ball to prevent the ball from escaping from the ball pocket 2. With this arrangement, the abutting surface 42 matches the outer surface of the ball and can stably abut the ball.

[0040] In this embodiment: a plurality of limiting columns 5 are provided on the outer surface of the top column 4, and the side surface of the limiting columns 5 is arc-shaped. A limiting groove 13 corresponding to and matching the plurality of limiting columns 5 is opened in the top cavity 12, and the extension direction of the limiting groove 13 is parallel to the top cavity 12. The plurality of limiting columns 5 slide along the limiting groove 13 to maintain the stability of the top column 4 during the sliding process along the top cavity 12. The side surface of the limiting column 5 is arc-shaped, which facilitates the limiting column 5 to slide along the length direction of the limiting groove 13 to maintain the stability of the top column 4 during the sliding process along the top cavity 12.

[0041] In this embodiment: a fixed column 7 is slidably connected in the lifting chamber 14, and the fixed column 7 is located above the top column 4. The top column 4 and the fixed column 7 are both cylindrical structures. A fixed cavity 43 is opened on the side of the top column 4, and the fixed cavity 43 matches the fixed column 7. When the top column 4 contacts the ball, the fixed cavity 43 is located directly below the fixed column 7. Under the action of gravity, the fixed column 7 falls into the fixed cavity 43 to fix the position of the top column 4. The above scheme not only has a good fixing effect, but also has a low manufacturing cost, and can be applied in actual production.

[0042] The working principle of this embodiment:

[0043] First, after the ball is inserted into the ball pocket 2, the driving block 3 is moved by the moving block 6, and the free end of the driving block 3 is inserted into the driving cavity 11. When the driving block 3 contacts the abutting column 4, the driving surfaces 31 on both sides of the driving block 3 will slide with the connecting surfaces 41 on both sides. The driving block 3 drives the abutting columns 4 on both sides to slide along the abutting cavity 12 synchronously, and the abutting columns 4 abut the ball through the abutting surfaces 42. At the same time, the fixed cavity 43 moves to the bottom of the fixed column 7. Under the action of gravity, the fixed column 7 falls into the fixed cavity 43 along the lifting cavity 14 to fix the abutting column 4.

[0044] Example 2

[0045] In this embodiment: a return mechanism 8 is provided on the fixed column 7, and a return cavity 15 corresponding to the lifting cavity 14 is provided in the retaining frame body 1. The width of the return cavity 15 is greater than the lifting cavity 14, and the upper end passes through the upper end surface of the retaining frame body 1. The return mechanism 8 can drive the fixed column 7 to be inserted into the fixed cavity 43 to fix the abutting column 4 when the fixed cavity 43 moves to the bottom of the fixed column 7; the width of the return cavity 15 is greater than the lifting cavity 14, which can prevent the return mechanism 8 from entering the lifting cavity 14.

[0046] In this embodiment: the return mechanism 8 is located in the return chamber 15, and includes a limit block 81, a spring 82 and a base 83. The limit block 81 is fixedly installed on the upper end surface of the fixed column 7 and is slidably connected to the return chamber 15. The limit block 81 slides along the return chamber 15 to maintain the stability of the fixed column 7 during the sliding process along the lifting chamber 14, and no jamming occurs.

[0047] In the present embodiment: one end of the spring 82 is fixedly mounted on the side of the limit block 81 away from the fixed column 7, and the other end is fixedly connected to the base 83. The base 83 is used to block the opening of the lifting chamber 14 and compress the spring 82. The spring 82 in a compressed state can apply pressure to the fixed column 7 through the limit block 81. When the fixed chamber 43 moves to the bottom of the fixed column 7, the fixed column 7 can be driven to insert into the fixed chamber 43 to fix the top column 4. The setting of the base 83 can facilitate the installation of the spring 82 and the limit block 81.

[0048] In this embodiment, when the fixing cavity 43 is located directly below the fixing column 7 , the spring 82 drives the fixing column 7 to be inserted into the fixing cavity 43 via the limiting block 81 , thereby fixing the position of the abutting column 4 .

[0049] The working principle of this embodiment:

[0050] First, after the ball is inserted into the ball pocket 2, the driving block 3 is moved by the moving block 6, and the free end of the driving block 3 is inserted into the driving cavity 11. When the driving block 3 contacts the abutting column 4, the driving surfaces 31 on both sides of the driving block 3 will slide with the connecting surfaces 41 on both sides. The driving block 3 drives the abutting columns 4 on both sides to slide along the abutting cavity 12 synchronously, and the abutting columns 4 abut the ball through the abutting surfaces 42. At the same time, the fixed cavity 43 moves to the bottom of the fixed column 7, and the spring 82 drives the fixed column 7 to be inserted into the fixed cavity 43 through the limit block 81 to fix the position of the abutting column 4.

[0051] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A plastic cage for a new energy vehicle bearing, comprising a cage body (1), wherein the cage body (1) is in a circular ring shape and has a plurality of ball pockets (2) on one end surface, wherein the ball pockets (2) are connected to the inner side wall and the outer side wall of the cage body (1), and wherein: A drive cavity (11) is provided on the end surface of the retainer body (1); the drive cavity (11) and the ball pocket (2) are located on the same end surface of the retainer body (1); the extension direction of the drive cavity (11) is perpendicular to the upper end surface of the retainer body (1) and is evenly distributed along the circumference of the retainer body (1); the drive cavity (11) and the ball pocket (2) are spaced apart; Each of the two sides of the driving cavity (11) is vertically connected with a top cavity (12), the top cavity (12) is provided on the retaining frame body (1), and the side away from the driving cavity (11) is connected to the ball pocket (2), and the retaining frame body (1) is provided with a lifting cavity (14), the lifting cavity (14) is vertically connected with the top cavity (12), and the number of the lifting cavity (14) is the same; The abutting cavity (12) is slidably connected with an abutting column (4), and the lifting cavity (14) is slidably connected with a fixing column (7), and the fixing column (7) is located above the abutting column (4). After the ball is installed in the ball pocket (2), the driving block (3) is inserted into the driving cavity (11) and drives the abutting columns (4) on both sides to abut the ball, so as to prevent the ball from escaping from the ball pocket (2).

2. The plastic retainer for new energy vehicle bearings according to claim 1 is characterized in that: The abutting column (4) and the fixing column (7) are both cylindrical structures. A fixing cavity (43) is provided on the side of the abutting column (4). The fixing cavity (43) matches the fixing column (7). When the abutting column (4) contacts the ball, the fixing cavity (43) is located directly below the fixing column (7). Under the action of gravity, the fixing column (7) falls into the fixing cavity (43) to fix the position of the abutting column (4).

3. The plastic retainer for new energy vehicle bearings according to claim 2 is characterized in that: A return mechanism (8) is provided on the fixing column (7), and a return cavity (15) corresponding to the lifting cavity (14) is provided in the retaining frame body (1), the return cavity (15) is wider than the lifting cavity (14), and the upper end thereof passes through the upper end surface of the retaining frame body (1); The return mechanism (8) is located in the return cavity (15) and comprises a limit block (81), a spring (82) and a base (83). The limit block (81) is fixedly mounted on the upper end surface of the fixed column (7) and is slidably connected to the return cavity (15); one end of the spring (82) is fixedly mounted on the side of the limit block (81) away from the fixed column (7), and the other end is fixedly connected to the base (83). The base (83) is used to block the opening of the lifting cavity (14) and press the spring (82). When the fixed cavity (43) is located directly below the fixed column (7), the spring (82) drives the fixed column (7) to be inserted into the fixed cavity (43) through the limit block (81) to fix the position of the abutting column (4).

4. The plastic retainer for new energy vehicle bearings according to claim 2 is characterized in that: The driving block (3) and the driving cavity (11) are both rectangular structures and are slidably connected. The driving block (3) is provided with driving surfaces (31) on two side surfaces close to the two abutting columns (4). The driving surfaces (31) are located on the lower side of the driving block (3). The ends of the abutting columns (4) close to the driving block (3) are provided with connecting surfaces (41) with the same inclination angle as the driving surfaces (31). When the driving block (3) is in close contact with the abutting columns (4) on both sides, the driving surfaces (31) are slidably connected with the connecting surfaces (41) to realize synchronous driving of the two abutting columns (4) by the driving block (3).

5. The plastic retainer for new energy vehicle bearings according to claim 3 is characterized in that: An end of the abutting column (4) away from the connecting surface (41) is provided with an abutting surface (42) matching the outer surface of the ball, so as to achieve stable abutment of the ball by the abutting column (4).

6. The plastic retainer for new energy vehicle bearings according to claim 4 is characterized in that: The outer surface of the abutting column (4) is provided with a plurality of limiting columns (5), the side surface of the limiting columns (5) is arc-shaped, and the abutting cavity (12) is provided with limiting grooves (13) corresponding to and matching the plurality of limiting columns (5). The plurality of limiting columns (5) slide along the limiting grooves (13) to maintain the stability of the abutting column (4) during the sliding process along the abutting cavity (12).

7. The plastic retainer for new energy vehicle bearings according to claim 6 is characterized in that: The upper end of the driving block (3) is fixedly connected to a moving block (6), and the moving block (6) is used to move the driving block (3).

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