Inner ring press fitting device for tapered roller bearing

Abstract

The utility model relates to the technical field of inner ring press-fitting, and discloses an inner ring press-fitting device for a tapered roller bearing, which comprises a bearing plate, the top of the bearing plate is fixedly connected with a bearing column, the top of the bearing column is fixedly connected with a support plate, the top of the support plate is fixedly connected with an L-shaped connecting strip, and the L-shaped connecting strip is fixedly connected with the bearing column. An air cylinder is fixedly connected to the outer wall of one side of the L-shaped connecting strip, a motor is fixedly connected to the bottom of the supporting plate, the output end of the motor is located at the bottom of the supporting plate and penetrates through the top of the supporting plate, a connecting shaft is fixedly connected to the output end of the motor, and a transmission gear is fixedly connected to the outer wall of the connecting shaft; the four retainer clamping blocks jointly move towards the inner side to clamp the retainer, the second connecting strips move from the inner side to the outer side or from the outer side to the inner side, and the moving path of the first connecting strips is kept consistent with that of the second connecting strips, so that the inner ring is located above the retainer; and the centering degree of the inner ring and the retainer in the press-fitting process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of inner ring press-fitting, in particular to an inner ring press-fitting device for a tapered roller bearing. Background Art

[0002] The existing authorized patent number is CN 219062251 U, which is a device for pressing the inner ring of a tapered roller bearing. The device comprises a support frame, an electric push rod is arranged inside the support frame, a movable component is arranged at the bottom end of the electric push rod, two guide components are arranged on the movable component, the guide component is arranged in the support frame, a reset component is arranged under the support frame, two limit components are arranged on the reset component, both limit components are connected to the positioning blocks, the same adjustment component is arranged between the two positioning blocks, the adjustment component is arranged on the reset component, the same inner ring is arranged outside the two positioning blocks, a retaining frame is arranged on the support frame, and the retaining frame is arranged outside the inner ring.

[0003] The above-mentioned equipment has a reasonable structure. By setting a pressure plate, a rubber pad and an electric push rod, the extension of the electric push rod is controlled, and the telescopic electric push rod drives the rubber pad to move downward through the pressure plate. When the downwardly moving rubber pad contacts the inner ring, the downwardly moving pressure plate presses the inner ring into the retaining frame placed with the roller through the rubber pad. Because the rubber pad is arranged between the inner ring and the pressure plate, the rubber pad can protect the inner ring, so that the downwardly moving pressure plate will not contact the inner ring and cause damage to the inner ring. However, during use, the pressing mechanism of the existing inner ring pressing device is difficult to ensure the alignment of the inner ring and the retaining frame during the pressing process, and poor alignment is prone to occur, and it is difficult to press different bearings. Utility Model Content

[0004] The purpose of the utility model is to provide a press-fit device for the inner ring of a tapered roller bearing to solve the problems raised in the above-mentioned background technology.

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

[0006] include:

[0007] A load-bearing plate, the top of which is fixedly connected to a load-bearing column, the top of which is fixedly connected to a support plate, the top of which is fixedly connected to an L-shaped connecting strip, and one side outer wall of the L-shaped connecting strip is fixedly connected to a cylinder;

[0008] The bottom of the support plate is fixedly connected with a motor, and the output end of the motor is located at the bottom of the support plate and penetrates the top of the support plate. The output end of the motor is fixedly connected with a connecting shaft, and the outer wall of the connecting shaft is fixedly connected with a transmission gear.

[0009] As an optional technical solution, the top of the support plate is fixedly connected to a first connecting disk, the top of the first connecting disk is rotatably connected to a first gear, the first gear is meshingly connected to a toothed disk, the toothed disk is located at the top of the first connecting disk, and the toothed disk is meshingly connected to the transmission gear.

[0010] As an optional technical solution, a first connecting strip is slidably connected to the top of the toothed disc, a first rack is fixedly connected to the outer wall of the first connecting strip, and the first rack is meshingly connected to the first gear.

[0011] As an optional technical solution, a retaining frame clamping block is fixedly connected to an outer wall of one side of the first connecting strip, a limiting block is slidably connected to an outer wall of one side of the first connecting strip, and the bottom of the limiting block is fixedly connected to the top of the support plate, and a sliding groove is provided on the top of the first connecting strip.

[0012] As an optional technical solution, the inner wall of the sliding groove is slidably connected to a sliding block, the top of the sliding block is fixedly connected to a second connecting strip, one side outer wall of the second connecting strip is fixedly connected to an inner ring clamping block, and the other side outer wall of the second connecting strip is fixedly connected to a second rack.

[0013] As an optional technical solution, the second rack is meshedly connected with a second gear, the bottom of the second gear is fixedly connected with a second connecting disk, and the bottom of the second connecting disk is fixedly connected to the top of the support plate.

[0014] As an optional technical solution, the inner wall of the cylinder is slidably connected to a piston rod, the bottom of the piston rod is fixedly connected to a press block, and the bottom of the press block is fixedly connected to a press column.

[0015] As an optional technical solution, the top of the support plate is fixedly connected with a connecting block, the inner wall of the connecting block is rotatably connected to a limiting groove, the inner wall of the limiting groove is adaptively matched with a cross limiting block, and the cross limiting block is fixedly connected to the top of the connecting shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model moves from the inside to the outside or from the outside to the inside through the first connecting strip. When moving inward, the four retaining frame clamping blocks can move inward together to clamp the retaining frame. When the gear plate rotates, it can drive the second gear to rotate, thereby driving the second connecting strip to move from the inside to the outside or from the outside to the inside. The moving path of the second connecting strip is consistent with the first connecting strip, so that the inner ring is located above the retaining frame, ensuring the alignment of the inner ring and the retaining frame during the press-fitting process, avoiding poor alignment, improving the assembly accuracy and performance of the bearing, and being able to press-fit different bearings.

[0018] 2. The utility model can make the piston rod move up and down through the operation of the cylinder, and then the piston rod can drive the press-fitting block to press the inner ring downward, and the inner ring can be fully contacted through the press-fitting column. By reasonably arranging multiple press-fitting points, that is, multiple press-fitting columns, the pressure is evenly distributed on the inner ring of the bearing, which can improve the efficiency and uniformity of the press-fitting and avoid deflection or unevenness during the press-fitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 This is a schematic diagram of the first connecting bar structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second connecting strip of the utility model;

[0022] Figure 4 This is a schematic diagram of the split structure of the connecting strip of the utility model;

[0023] Figure 5 This is a schematic diagram of the cylinder structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the press-fit block structure of the utility model.

[0025] In the figure: 1. load-bearing plate; 2. load-bearing column; 3. support plate; 4. L-shaped connecting strip; 5. cylinder; 6. motor; 7. connecting shaft; 8. transmission gear; 9. first connecting disk; 10. first gear; 11. toothed disk; 12. first connecting strip; 13. first rack; 14. retaining frame clamping block; 15. limit block; 16. sliding groove; 17. sliding block; 18. second connecting strip; 19. inner ring clamping block; 20. second rack; 21. second gear; 22. second connecting disk; 23. piston rod; 24. press-fit block; 25. press-fit column; 26. connecting block; 27. limit groove; 28. cross limit block. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figures 1 to 6 , a device for pressing the inner ring of a tapered roller bearing, comprising a load-bearing plate 1, a load-bearing column 2 is fixedly connected to the top of the load-bearing plate 1, a support plate 3 is fixedly connected to the top of the load-bearing column 2, an L-shaped connecting strip 4 is fixedly connected to the top of the support plate 3, and a cylinder 5 is fixedly connected to the outer wall of one side of the L-shaped connecting strip 4;

[0030] A motor 6 is fixedly connected to the bottom of the support plate 3, and the output end of the motor 6 is located at the bottom of the support plate 3 and penetrates the top of the support plate 3. The output end of the motor 6 is fixedly connected to a connecting shaft 7, and a transmission gear 8 is fixedly connected to the outer wall of the connecting shaft 7.

[0031] The load-bearing plate 1 bears the load of the inner ring press-fitting device, the load-bearing column 2 bears the load of the support plate 3, the support plate 3 supports the L-shaped connecting strip 4, the position of the cylinder 5 is fixed by the L-shaped connecting strip 4, the piston rod 23 can be moved up and down by the cylinder 5, the position of the motor 6 is fixed by the support plate 3, and the output end of the motor 6 rotates to drive the connecting shaft 7 to rotate. While the connecting shaft 7 rotates, it drives the transmission gear 8 to rotate, and then drives the toothed disc 11 to rotate.

[0032] The top of the support plate 3 is fixedly connected to a first connecting disk 9, the top of the first connecting disk 9 is rotatably connected to a first gear 10, the first gear 10 is meshingly connected to a toothed disk 11, the toothed disk 11 is located on the top of the first connecting disk 9, and the toothed disk 11 is meshingly connected to the transmission gear 8.

[0033] The position of the first connecting disk 9 is fixed by the support plate 3 , and the rotation of the transmission gear 8 can drive the toothed disk 11 to rotate. When the toothed disk 11 rotates, it can drive the first gear 10 to rotate.

[0034] The top of the toothed disc 11 is slidably connected with a first connecting strip 12, an outer wall of the first connecting strip 12 is fixedly connected with a first rack 13, and the first rack 13 is meshingly connected with the first gear 10, an outer wall on one side of the first connecting strip 12 is fixedly connected with a retaining frame clamping block 14, an outer wall on one side of the first connecting strip 12 is slidably connected with a limiting block 15, and the bottom of the limiting block 15 is fixedly connected to the top of the support plate 3, and a sliding groove 16 is provided at the top of the first connecting strip 12.

[0035] Through the meshing connection between the first rack 13 and the first gear 10, the first gear 10 can drive the first connecting bar 12 to move from the inside to the outside or from the outside to the inside while rotating. When moving inward, the four retaining frame clamping blocks 14 can move inward together to clamp the retaining frame. The limit block 15 can enable the first connecting bar 12 to maintain a fixed sliding path while sliding, and the sliding groove 16 can enable the sliding block 17 to slide.

[0036] The inner wall of the sliding groove 16 is slidably connected with a sliding block 17, the top of the sliding block 17 is fixedly connected with a second connecting strip 18, the outer wall on one side of the second connecting strip 18 is fixedly connected with an inner ring clamping block 19, the outer wall on the other side of the second connecting strip 18 is fixedly connected with a second rack 20, the second rack 20 is meshingly connected with a second gear 21, the bottom of the second gear 21 is fixedly connected with a second connecting disk 22, and the bottom of the second connecting disk 22 is fixedly connected to the top of the support plate 3.

[0037] The sliding block 17 can slide on the inner wall of the sliding groove 16, so that the moving path of the second connecting bar 18 can be consistent with the first connecting bar 12. Through the meshing connection between the second rack 20 and the second gear 21, the gear plate 11 can drive the second gear 21 to rotate while rotating, thereby driving the second connecting bar 18 to move from the inside to the outside or from the outside to the inside. When moving inward, the four inner ring clamping blocks 19 can move inward together to clamp the inner ring.

[0038] The inner wall of the cylinder 5 is slidably connected with a piston rod 23 , the bottom of the piston rod 23 is fixedly connected with a press-fit block 24 , and the bottom of the press-fit block 24 is fixedly connected with a press-fit column 25 .

[0039] The operation of the cylinder 5 can cause the piston rod 23 to move up and down, and then the piston rod 23 can drive the press-fitting block 24 to press the inner ring downward, and the press-fitting column 25 can fully contact the inner ring.

[0040] The top of the support plate 3 is fixedly connected with a connecting block 26 , the inner wall of the connecting block 26 is rotatably connected with a limiting groove 27 , the inner wall of the limiting groove 27 is adaptively matched with a cross limiting block 28 , and the cross limiting block 28 is fixedly connected to the top of the connecting shaft 7 .

[0041] The position of the connecting block 26 can be fixed by the support plate 3, and the limiting groove 27 can be rotated by the connecting block 26. Since the state of the connecting shaft 7 is unstable, the connecting shaft 7 can be kept fixed from an unstable state through the adaptive matching between the limiting groove 27 and the cross limiting block 28, thereby keeping the positions of the first connecting bar 12 and the second connecting bar 18 fixed.

[0042] Working principle: when using the new inner ring press-fitting device for tapered roller bearings, the output end of the motor 6 is rotated to drive the connecting shaft 7 to rotate. When the connecting shaft 7 rotates, it drives the transmission gear 8 to rotate, and then drives the toothed disc 11 to rotate. Through the meshing connection between the first rack 13 and the first gear 10, the first gear 10 can drive the first connecting bar 12 to move from the inside to the outside or from the outside to the inside while rotating. When moving inward, the four retaining frame clamping blocks 14 can move inward together to clamp the retaining frame. When the toothed disc 11 rotates, it can drive the second gear 21 to rotate , and then drive the second connecting strip 18 to move from the inside to the outside or from the outside to the inside. The moving path of the second connecting strip 18 is consistent with the first connecting strip 12, so that the inner ring is located above the retaining frame, ensuring the alignment of the inner ring and the retaining frame during the press-fitting process. The operation of the cylinder 5 can make the piston rod 23 move up and down, and then the piston rod 23 can drive the press-fitting block 24 to press the inner ring downward. The press-fitting column 25 can fully contact the inner ring. By reasonably arranging multiple press-fitting points, that is, multiple press-fitting columns 25, the pressure is evenly distributed on the inner ring of the bearing, avoiding deflection or unevenness during the press-fitting process.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for pressing the inner ring of a tapered roller bearing, comprising a bearing plate (1), characterized in that: The top of the load-bearing plate (1) is fixedly connected to a load-bearing column (2), the top of the load-bearing column (2) is fixedly connected to a support plate (3), the top of the support plate (3) is fixedly connected to an L-shaped connecting strip (4), and one side outer wall of the L-shaped connecting strip (4) is fixedly connected to a cylinder (5); A motor (6) is fixedly connected to the bottom of the support plate (3), and an output end of the motor (6) is located at the bottom of the support plate (3) and penetrates the top of the support plate (3). A connecting shaft (7) is fixedly connected to the output end of the motor (6), and a transmission gear (8) is fixedly connected to the outer wall of the connecting shaft (7); The top of the support plate (3) is fixedly connected to a first connecting disk (9), the top of the first connecting disk (9) is rotatably connected to a first gear (10), the first gear (10) is meshingly connected to a toothed disk (11), the toothed disk (11) is located on the top of the first connecting disk (9), and the toothed disk (11) is meshingly connected to a transmission gear (8); The top of the toothed disc (11) is slidably connected to a first connecting bar (12), the outer wall of the first connecting bar (12) is fixedly connected to a first rack (13), and the first rack (13) is meshingly connected to the first gear (10); A retaining frame clamping block (14) is fixedly connected to an outer wall of one side of the first connecting strip (12); a limiting block (15) is slidably connected to an outer wall of one side of the first connecting strip (12); the bottom of the limiting block (15) is fixedly connected to the top of the support plate (3); and a sliding groove (16) is provided on the top of the first connecting strip (12); The inner wall of the sliding groove (16) is slidably connected to a sliding block (17), the top of the sliding block (17) is fixedly connected to a second connecting strip (18), one side outer wall of the second connecting strip (18) is fixedly connected to an inner ring clamping block (19), and the other side outer wall of the second connecting strip (18) is fixedly connected to a second rack (20); The second rack (20) is meshingly connected with a second gear (21), the bottom of the second gear (21) is fixedly connected with a second connecting disk (22), and the bottom of the second connecting disk (22) is fixedly connected to the top of the support plate (3).

2. The inner ring press-fitting device for a tapered roller bearing according to claim 1, characterized in that: The inner wall of the cylinder (5) is slidably connected to a piston rod (23), the bottom of the piston rod (23) is fixedly connected to a press block (24), and the bottom of the press block (24) is fixedly connected to a press column (25).

3. The inner ring press-fitting device for a tapered roller bearing according to claim 1, characterized in that: The top of the support plate (3) is fixedly connected with a connecting block (26), the inner wall of the connecting block (26) is rotatably connected with a limiting groove (27), the inner wall of the limiting groove (27) is adaptively matched with a cross limiting block (28), and the cross limiting block (28) is fixedly connected to the top of the connecting shaft (7).

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