Elastic supporting seat for gear box

Abstract

The utility model discloses an elastic supporting seat for a gear box, which relates to the technical field of gear boxes, and comprises an elastic supporting seat arranged in a box body fixing groove, the elastic supporting seat comprises a supporting seat provided with a bearing mounting groove and a through hole, the bearing mounting groove is used for being matched with a bearing to mount so as to form axial limit on a rotating shaft, and the through hole is communicated with the bearing mounting groove. A rotating shaft penetrates through the through hole, and a plurality of auxiliary strip supports are arranged in the middle of the supporting seat. The elastic supporting seat is adopted to replace an original end cover to limit the bearing, radial vibration generated when the rotating shaft rotates is transmitted to the supporting seat, kinetic energy is absorbed through deformation of the auxiliary strip support, and when the rotating speed of the rotating shaft changes, the deformation degree of the auxiliary strip support also changes synchronously, so that the rotating speed of the rotating shaft is changed. The supporting rigidity of the auxiliary strip support is adjusted according to the rotating speed of the rotating shaft, and vibration during rotating of the rotating shaft is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to an elastic supporting seat for a gear box. Background Art

[0002] A gearbox generally includes a housing and a rotating shaft arranged inside the housing. The rotating shaft is divided into an input shaft and an output shaft according to its purpose. Both the output shaft and the input shaft are fixed in the housing through bearings. The bearings are generally installed in the fixing grooves on the end faces of the housing and then fixed with end covers. The setting of the bearings can not only reduce the wear of the rotating shaft, but also cooperate with the end covers to limit the rotating shaft.

[0003] The current technical problems are: radial vibration will be generated when the shaft rotates, which will in turn cause greater vibration to the bearings connected to the shaft, which will not only reduce the service life of the bearings, but also generate greater noise. When the speed changes, the radial vibration will also be in a fluctuating state. Although the traditional gearbox has an end cover and a bearing to limit the shaft, due to the rigid support structure of the end cover and the bearing, it cannot effectively buffer the changing radial vibration. Utility Model Content

[0004] The utility model aims to provide an elastic support seat for a gear box to solve the technical problem raised by the above background technology that the rotating shaft of the gear box in the current market will produce fluctuating radial vibration as the speed changes during operation, thereby generating vibration and noise.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elastic support seat for a gear box, comprising an elastic support seat arranged in a fixing groove of a box body, the elastic support seat comprising a support seat with a bearing mounting groove and a through hole, the bearing mounting groove is used to cooperate with the bearing installation to form an axial limit for the rotating shaft, the through hole is used to pass the rotating shaft, the support seat is provided with a plurality of auxiliary strip supports in the middle thereof, there are gaps between adjacent auxiliary strip supports, and radial vibration from the rotating shaft is absorbed by deformation of the auxiliary strip supports.

[0006] As a preferred technical solution of the utility model, the support seat is provided with a mounting structure on a side thereof away from the bearing mounting groove, so as to fix the support seat in the fixing groove.

[0007] As a preferred technical solution of the utility model, the mounting structure is a plurality of mounting holes opened at one end of the support seat, one end of a connecting piece is arranged in the mounting hole, and the other end of the connecting piece is connected to the box body.

[0008] As a preferred technical solution of the present utility model, the support seat is a circular ring structure, and the auxiliary strip supports are arranged in a ring shape about the center of the ring.

[0009] As a preferred technical solution of the utility model, the support seat is provided with an oil inlet for injecting lubricating oil on its outer surface near the bearing mounting groove, and the support seat is provided with an oil outlet hole connected to the oil inlet on its inner surface near the bearing mounting groove, and the oil outlet hole is aligned with the oil filling gap of the bearing.

[0010] As a preferred technical solution of the utility model, the support seat is provided with an annular groove at one end away from the bearing mounting groove, an oil seal is arranged in the annular groove, and a fixing piece for fastening the oil seal is arranged on the end surface of the support seat.

[0011] As a preferred technical solution of the utility model, the fixing member is an end cover with a bolt hole, the end cover has a through slot for the rotating shaft to pass through, a bolt is arranged in the bolt hole, and one end of the bolt is embedded in a bolt slot provided in the support seat.

[0012] As a preferred technical solution of the present utility model, the auxiliary bar support is arranged parallel to the rotating shaft.

[0013] As a preferred technical solution of the utility model, the auxiliary bar support is provided with a reinforcing rib plate at one end thereof away from the bearing mounting groove.

[0014] As a preferred technical solution of the present utility model, the depth of the bearing mounting groove is greater than or equal to the thickness of the bearing.

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

[0016] The utility model adopts an elastic support seat to replace the original end cover to limit the bearing, so that the radial vibration generated when the shaft rotates is transmitted to the support seat through the bearing, and the radial vibration from the shaft is absorbed by the deformation of the auxiliary strip support. When the rotation speed of the shaft changes, the deformation degree of the auxiliary strip support will also change synchronously, so as to adjust the support stiffness of the auxiliary strip support according to the rotation speed of the shaft, thereby significantly reducing the vibration of the shaft when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the assembly structure of the support base and the box body of the utility model.

[0020] In the figure: 1. Support seat; 2. Mounting hole; 3. Bearing mounting groove; 4. Auxiliary support; 5. Through hole; 6. Oil inlet; 7. Oil outlet; 8. Bearing; 9. Rotating shaft; 10. Box body; 11. Box body oil filling hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-3 The utility model provides a technical solution: an elastic support seat for a gear box, comprising an elastic support seat arranged in a fixing groove of a box body 10, the elastic support seat comprising a support seat 1 with a bearing installation groove 3 and a through hole 5, the bearing installation groove 3 is used to cooperate with the bearing 8 to form an axial limit for the rotating shaft 9, the through hole 5 is used to pass the rotating shaft 9, the support seat 1 is provided with a plurality of auxiliary strip supports 4 in the middle thereof, there are gaps between adjacent auxiliary strip supports 4, and the radial vibration from the rotating shaft 9 is absorbed by the deformation of the auxiliary strip supports 4;

[0023] The above technical solution can be used to buffer and absorb the radial vibration generated when the rotating shaft 9 rotates. During installation, the rotating shaft 9 with bearings 8 connected at both ends is first installed in the box body 10, and the support seat 1 is inserted into the fixing groove and fixed. The fixing method can adopt a conventional detachable method, such as bolt fixing, so that the bearing mounting groove 3 of the support seat 1 fits with the bearing 8. In order to reduce the wear between the bearing 8 and the bearing mounting groove 3, a gasket can also be added between the two. In this way, the installation is completed. When the rotating shaft 9 rotates, radial vibration will be generated, which will be transmitted to the support seat 1 through the bearing 8. The auxiliary strip support 4 in the middle of the support seat 1 absorbs the radial vibration from the rotating shaft 9 by deformation, and when the rotation speed of the rotating shaft 9 changes, the deformation degree of the auxiliary strip support 4 will also change synchronously, according to the rotation speed of the rotating shaft 9. Adjust the supporting stiffness of the auxiliary bar support 4, that is, when the rotating speed of the rotating shaft 9 is high, the greater the radial vibration of the rotating shaft 9, the deformation degree of the auxiliary bar support 4 will also increase accordingly, and more kinetic energy will be absorbed. On the contrary, when the rotating speed of the rotating shaft 9 is low, the deformation degree of the auxiliary bar support 4 will also decrease accordingly. When the rotating speed of the rotating shaft 9 is zero, the auxiliary bar support 4 will not deform. Therefore, the supporting stiffness of the auxiliary bar support 4 can be adjusted according to the actual working conditions, and the vibration of the rotating shaft 9 during rotation can be significantly reduced. In order to facilitate the vivid understanding of the principle of the auxiliary bar support 4, a bicycle used in daily life is used as an example for explanation. The principle of the auxiliary bar support 4 is somewhat similar to the auxiliary bar structure of the wheel of a bicycle, but the auxiliary bar support 4 is stronger than the auxiliary bar of a bicycle, so the degree of deformation during its operation is also relatively small, almost invisible to the naked eye.

[0024] like Figure 1 and Figure 3As shown, in this embodiment, the support seat 1 is provided with a mounting structure on a side thereof away from the bearing mounting groove 3, so as to fix the support seat 1 in the fixing groove; specifically, the mounting structure is a plurality of mounting holes 2 opened at one end of the support seat 1, one end of a connecting member is provided in the mounting hole 2, and the other end of the connecting member is connected to the box body 10, and the connecting member is preferably a bolt;

[0025] By adopting the above technical solution, the support base 1 can be installed in the fixing groove of the box body 10. During installation, after the support base 1 is embedded in the fixing groove, bolts are used to penetrate the installation hole 2 and screwed into the bolt groove on the surface of the box body 10, so that the support base 1 can be fixedly connected to the box body 10.

[0026] like Figure 1 and Figure 2 As shown, in this embodiment, the support seat 1 is a circular ring structure, and the auxiliary bar support 4 is arranged in a ring shape about the center of the ring; the auxiliary bar support 4 is arranged parallel to the rotating shaft 9; the auxiliary bar support 4 is provided with a reinforcing rib plate at one end thereof away from the bearing mounting groove 3;

[0027] The above technical solution can further improve the compressive strength of the auxiliary bar support 4. By adding reinforcing ribs, its impact resistance can be effectively improved, the root of the auxiliary bar support 4 can be prevented from breaking, and its service life can be increased.

[0028] like Figure 2 and Figure 3 As shown, in this embodiment, the support seat 1 is provided with an oil inlet 6 for injecting lubricating oil on its outer surface close to the bearing mounting groove 3, and the support seat 1 is provided with an oil outlet 7 connected with the oil inlet 6 on its inner surface close to the bearing mounting groove 3, and the oil outlet 7 is aligned with the oil filling gap of the bearing 8;

[0029] The above technical solution can facilitate lubrication and cooling of the bearing 8. By injecting lubricating oil into the oil filling hole 11 of the box body, the lubricating oil will flow into the oil outlet hole 7 along the oil inlet 6, and then flow into the oil filling gap of the bearing 8 through the oil outlet hole 7, thereby achieving lubrication and cooling of the bearing 8, which is relatively convenient.

[0030] like Figure 3 As shown, in this embodiment, the support seat 1 is provided with an annular groove at one end thereof away from the bearing mounting groove 3, an oil seal is arranged in the annular groove, and a fixing member for fastening the oil seal is arranged on the end surface of the support seat 1; specifically, the fixing member is an end cover provided with a bolt hole, the end cover is provided with a through groove for the rotating shaft 9 to pass through, a bolt is arranged in the bolt hole, and one end of the bolt is embedded in the bolt groove provided in the support seat 1;

[0031] The above technical solution can prevent the lubricating oil from leaking from the through hole 5 of the support seat 1. Since the through hole 5 and the rotating shaft 9 are clearance-matched, the lubricating oil usually flows out of the through hole 5 along the rotating shaft 9, causing oil stains to form on the end face of the support seat 1, which requires manual regular cleaning. In order to avoid and reduce the occurrence of this situation, an oil seal is added and fixed with an end cover, so that the gap between the through hole 5 and the rotating shaft 9 can be well blocked, so that the lubricating oil can stay inside the equipment for a longer time to exert its lubricating effect.

[0032] Working principle: When in use, first install the rotating shaft 9 with bearings 8 connected at both ends into the box body 10, insert the support seat 1 into the fixing groove, use bolts to penetrate the mounting holes 2 and screw into the bolt grooves on the surface of the box body 10, so that the support seat 1 can be fixedly connected to the box body 10 to complete the installation. When the rotating shaft 9 rotates, radial vibration will be generated, which will be transmitted to the support seat 1 through the bearing 8. The auxiliary strip support 4 in the middle of the support seat 1 absorbs the radial vibration from the rotating shaft 9 through deformation, and when the speed of the rotating shaft 9 changes, the deformation degree of the auxiliary strip support 4 will also change synchronously, so as to adjust the support stiffness of the auxiliary strip support 4 according to the speed of the rotating shaft 9. When lubricating and cooling the bearing 8, lubricating oil is injected into the oil filling hole 11 of the box body, and the lubricating oil will flow into the oil outlet hole 7 along the oil inlet 6, and then flow into the oil filling gap of the bearing 8 through the oil outlet hole 7, so as to realize lubrication and cooling of the bearing 8, which is more convenient.

[0033] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] 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. An elastic support seat for a gear box, characterized in that: The invention comprises an elastic support seat arranged in a fixing groove of a housing (10), the elastic support seat comprising a support seat (1) provided with a bearing installation groove (3) and a through hole (5), the bearing installation groove (3) being used for being installed in cooperation with a bearing (8) to form an axial limit for a rotating shaft (9), the through hole (5) being used for passing the rotating shaft (9), the support seat (1) being provided with a plurality of auxiliary strip supports (4) in the middle thereof, gaps being provided between adjacent auxiliary strip supports (4), and radial vibration from the rotating shaft (9) being absorbed by deformation of the auxiliary strip supports (4).

2. The elastic support seat for a gear box according to claim 1, characterized in that: The support seat (1) is provided with a mounting structure on a side thereof away from the bearing mounting groove (3) so as to fix the support seat (1) in the fixing groove.

3. The elastic support seat for a gear box according to claim 2, characterized in that: The mounting structure is a plurality of mounting holes (2) opened at one end of the support seat (1), one end of a connecting piece is arranged in the mounting hole (2), and the other end of the connecting piece is connected to the box body (10).

4. The elastic support seat for a gear box according to claim 1, characterized in that: The support seat (1) is a circular ring structure, and the auxiliary strip supports (4) are arranged in a ring shape about the center of the ring.

5. The elastic support seat for a gear box according to claim 1, characterized in that: The support seat (1) is provided with an oil inlet (6) for injecting lubricating oil on its outer surface near the bearing mounting groove (3), and the support seat (1) is provided with an oil outlet (7) connected to the oil inlet (6) on its inner surface near the bearing mounting groove (3), and the oil outlet (7) is aligned with the oil injection gap of the bearing (8).

6. The elastic support seat for a gear box according to claim 5, characterized in that: The support seat (1) is provided with an annular groove at one end thereof away from the bearing mounting groove (3), an oil seal is arranged in the annular groove, and a fixing piece for fastening the oil seal is arranged on the end surface of the support seat (1).

7. The elastic support seat for a gear box according to claim 6, characterized in that: The fixing member is an end cover with a bolt hole, the end cover is provided with a through slot for the rotating shaft (9) to pass through, a bolt is arranged in the bolt hole, and one end of the bolt is embedded in a bolt slot provided in the support seat (1).

8. The elastic support seat for a gear box according to claim 4, characterized in that: The auxiliary bar support (4) is arranged parallel to the rotating shaft (9).

9. The elastic support seat for a gear box according to claim 8, characterized in that: The auxiliary bar support (4) is provided with a reinforcing rib plate at one end thereof away from the bearing mounting groove (3).

10. The elastic support seat for a gear box according to claim 1, characterized in that: The depth of the bearing mounting groove (3) is greater than or equal to the thickness of the bearing (8).

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