Bevel gear for speed reducer

Abstract

The utility model discloses a bevel gear for a speed reducer, relates to the field of gears of speed reducers, and solves the problems that the meshing stability of the conventional two-cambered-surface cone is limited, the occupied space in a speed reduction box is large, and the practicability needs to be improved, the following scheme is adopted: the bevel gear comprises a gear handle and a bevel gear on the front side of the gear handle, the outer edge of the bevel gear is provided with a front edge and a rear edge, and the outer wall of the bevel gear is further provided with a meshing groove penetrating through the front edge. The included angle between the front edge and the horizontal plane is 33 degrees, and the included angle between the rear edge and the horizontal plane is 66 degrees. According to the bevel gear for the speed reducer, through the radian and shape arrangement of the front edge and the rear edge on the bevel gear, the space occupancy rate of the bevel gear can be reduced to the maximum extent under the condition that the bevel gear is conical, the occupied space in a reduction gearbox is reduced, and practicability is improved; and therefore, the meshing transmission stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of reducer gears, in particular to a bevel gear for a reducer. Background Art

[0002] Bevel gears are also called bevel gears or bevel gears. They are used for transmission between intersecting shafts. Compared with cylindrical gears, they can change the transmission direction. The single-stage transmission ratio can be up to 6 and the maximum is 8. Bevel gears are mainly used for transmission between two intersecting shafts. The angle between the two shafts is usually 90°, but can also be less than 90°. Bevel gears are mostly used in high-speed and heavy-load situations. They have the advantages of stable transmission and high load-bearing capacity.

[0003] After searching, the application with patent application number 202120829806.7 discloses a bevel gear structure for a reducer, including a gear body, a rotating shaft is arranged at the bottom end of the gear body, a circular gear body is fixedly arranged at the bottom of the outer end surface of the rotating shaft, a through groove is opened at the bottom end of the rotating shaft, a toothed disc is arranged at the upper end of the rotating shaft, a mounting groove is opened at the lower end surface of the gear body corresponding to the toothed disc, a plurality of connecting rods are arranged at the top of the mounting groove, a plurality of through holes are opened on the toothed disc corresponding to the plurality of connecting rods, the connecting rod extends downward and passes through the toothed disc, a fixing block is arranged at the bottom end of the connecting rod, the fixing block and the connecting rod are threadedly connected, gear teeth are arranged at the outer end of the gear body, the gear teeth are evenly distributed in groups of two, and the angle between the two adjacent groups of gear teeth is 72°. The design of the circular gear body improves practicality; the design of the toothed disc facilitates disassembly; the design of the gear teeth reduces costs;

[0004] The above application documents improve practicality by setting the angle and the circular gear body, but still use the double-sided cone, which always makes the contact surface unstable during meshing, affecting the transmission efficiency. At the same time, the inclination angle of the umbrella body is not limited, and its own size is not restricted, which easily occupies a large amount of space in the reduction box, and its practicality still needs to be improved.

[0005] Therefore, we proposed a bevel gear for a speed reducer. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a bevel gear for a reducer, which solves the problem that the existing two-arc cone meshing has limited stability and occupies more space in the reduction box, and its practicality needs to be improved.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: a bevel gear for a reducer, comprising a gear handle and a bevel gear on the front side thereof, the outer edge of the bevel gear is provided with a front edge and a rear edge, and the outer wall of the bevel gear is also provided with a meshing groove penetrating the edge of the front edge;

[0008] The angle between the front edge and the horizontal plane is 33°, and the angle between the rear edge and the horizontal plane is 66°;

[0009] The meshing groove is an irregular tapered groove, the left side wall of the meshing groove is a vertical side wall, and the right side wall of the meshing groove is an oblique side wall.

[0010] Preferably, the outer wall of the bevel gear is provided with twenty to thirty groups of meshing grooves distributed in an annular shape;

[0011] The arrangement of each group of meshing grooves can ensure stable meshing between adjacent bevel gears, thereby ensuring the transmission effect.

[0012] Preferably, the inclination of the oblique side wall in the engagement groove is 33°;

[0013] The setting of the inclination of the side wall of the meshing groove can increase the contact area during meshing and stabilize the meshing effect.

[0014] Preferably, the bevel gear meshes with another set of bevel gears of the same arc;

[0015] Among them, the arc walls of the meshing grooves in adjacent bevel gears are in contact and mesh with each other, and the vertical walls increase their contact area to ensure transmission stability.

[0016] Preferably, a through slot is formed on the inner side of the gear handle and the bevel gear, and the gear handle and the bevel gear are fitted on the drive shaft through the slot.

[0017] The utility model provides a bevel gear for a reducer, which has the following beneficial effects:

[0018] The bevel gear for the reducer can minimize its space occupancy rate when it is conical by setting the curvature and shape of the front and rear edges of the bevel gear, reduce the space occupied in the reduction box, and increase practicality. The setting of the meshing groove shape can ensure the contact area of ​​the other side when it is meshing, thereby ensuring the stability of the meshing transmission. At the same time, the angle setting is suitable for application-specific meshing to ensure transmission stability, solving the problem that the existing two-arc cone meshing has limited stability and occupies more space in the reduction box, and its practicality needs to be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model from an oblique perspective;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model from the rear;

[0022] Figure 4 It is a schematic structural diagram of the utility model from the side.

[0023] In the figure: 1, gear handle; 2, bevel gear; 21, front edge; 22, rear edge; 3, meshing groove. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a bevel gear for a reducer, comprising a gear handle 1 and a bevel gear 2 on the front side thereof, the outer edge of the bevel gear 2 is provided with a front edge 21 and a rear edge 22, and the outer wall of the bevel gear 2 is also provided with a meshing groove 3 that passes through the edge of the front edge 21; the angle between the front edge 21 and the horizontal plane is 33°, and the angle between the rear edge 22 and the horizontal plane is 66°; the meshing groove 3 is an anomalous conical groove, the left side wall of the meshing groove 3 is a vertical side wall, and the right side wall of the meshing groove 3 is an oblique side wall;

[0026] Among them, the bevel gear used in the reducer can maximize the reduction of its space occupancy rate when it is conical by setting the curvature and shape of the front edge 21 and the rear edge 22 on the bevel gear 2, reduce the space occupied in the reduction box, and increase practicality. The shape setting of the meshing groove 3 can ensure the contact area of ​​the other side when it is meshed, thereby ensuring the stability of the meshing transmission. At the same time, the angle setting is suitable for application-specific meshing to ensure transmission stability, solving the problem that the existing two-arc cone meshing has limited stability and occupies more space in the reduction box, and its practicality needs to be improved.

[0027] Embodiment 2:

[0028] Twenty to thirty groups of meshing grooves 3 are arranged in an annular shape on the outer wall of the bevel gear 2; wherein, the arrangement of each group of meshing grooves 3 can ensure stable meshing between adjacent bevel gears 2, thereby ensuring the transmission effect.

[0029] The inclination of the oblique side wall in the meshing groove 3 is 33°; wherein, the setting of the inclination of the side wall of the meshing groove 3 can increase the contact area during meshing and the effect of stabilizing the meshing.

[0030] The bevel gear 2 meshes with another set of bevel gears 2 of the same arc; wherein the arc walls of the meshing grooves 3 in adjacent bevel gears 2 are in contact and mesh with each other, and the vertical walls increase the contact area to ensure transmission stability.

[0031] A through slot is formed on the inner side of the gear handle 1 and the bevel gear 2, and the gear handle 1 and the bevel gear 2 are fitted with the driving shaft through the slot.

[0032] The working principle and use process of the utility model are as follows: when the device is needed to work, the meshing grooves 3 between two adjacent groups of bevel gears 2 are meshed, the oblique walls in the adjacent meshing grooves 3 are in contact, and the vertical walls are in direct contact and meshed to ensure the meshing stability. At the same time, the setting of the arc of the front edge 21 and the rear edge 22 can maximize the reduction of the occupancy rate of the inner space of the reduction box body and increase practicality.

[0033] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bevel gear for a reducer, characterized in that: It comprises a gear handle (1) and a bevel gear (2) on the front side thereof, wherein the outer edge of the bevel gear (2) is provided with a front edge (21) and a rear edge (22), and the outer wall of the bevel gear (2) is also provided with a meshing groove (3) penetrating the edge of the front edge (21); The angle between the front edge (21) and the horizontal plane is 33°, and the angle between the rear edge (22) and the horizontal plane is 66°; The meshing groove (3) is an irregular tapered groove, the left side wall of the meshing groove (3) is a vertical side wall, and the right side wall of the meshing groove (3) is an oblique side wall.

2. A bevel gear for a reducer according to claim 1, characterized in that: Twenty to thirty groups of meshing grooves (3) distributed in an annular shape are provided on the outer wall of the bevel gear (2).

3. The bevel gear for a reducer according to claim 1, characterized in that: The inclination of the oblique side wall in the engagement groove (3) is 33°.

4. The bevel gear for a reducer according to claim 1, characterized in that: The bevel gear (2) meshes with another set of bevel gears (2) of the same arc.

5. The bevel gear for a reducer according to claim 1, characterized in that: A through-going slot is provided on the inner side of the gear handle (1) and the bevel gear (2), and the gear handle (1) and the bevel gear (2) are fitted onto the drive shaft through the slot.

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