Bevel gear shaft assembly, speed reducer and driving assembly
By providing splines on the inner wall of the output bevel gear and interfering to the output shaft, the problem of insufficient transmission strength of the output bevel gear in the prior art is solved, and higher transmission strength and load-bearing capacity are achieved, while reducing machining difficulty.
Patent Information
- Application Number
- CN202421894632.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-06
AI Technical Summary
In the prior art, the flat key connection between the output bevel gear and the output shaft leads to a reduction in transmission strength and a small wall thickness, making it difficult to meet the needs of diverse application scenarios.
The connection between the output bevel gear and the output shaft is achieved by providing splines near the inner wall of the discharge end and fixing the output bevel gear to the output shaft through spline interference.
It effectively improves the transmission strength of the output bevel gear, improves the gear module and output torque, thereby improving the load-bearing capacity of the reducer, and reduces the requirements of spline machining accuracy, avoiding the defect of structural limitations that cannot be processed.
Smart Images
Figure CN222894605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of driving equipment, in particular to a bevel gear shaft component, a speed reducer and a driving assembly. Background Art
[0002] With the rapid development of the application of precision planetary reducer products, in order to adapt to diversified application scenarios, a planetary reducer with a right-angle output structure has been produced, with planetary transmission input and spiral output bevel gear right-angle output.
[0003] In the related art, a flat key is used to connect the output bevel gear and the output shaft, and a flat keyway needs to be provided in both the inner hole of the output bevel gear and the outer circle of the output shaft. This will make the wall thickness between the bottom of the flat keyway of the output bevel gear and the tooth root too small, resulting in a significant reduction in the transmission strength of the output bevel gear. Utility Model Content
[0004] The main purpose of the utility model is to provide a bevel gear shaft assembly, a reducer and a drive assembly, aiming at improving the transmission strength of the output bevel gear.
[0005] In order to achieve the above-mentioned purpose, the utility model proposes a bevel gear shaft assembly, comprising:
[0006] An output shaft, wherein the outer wall of the mounting section of the output shaft is a smooth wall surface before assembly, and the outer wall of the output shaft has a convex ring, and the convex ring is used to axially position the output bevel gear;
[0007] The output bevel gear is sleeved on the mounting section of the output shaft, the loading end of the output bevel gear abuts against the convex ring, the inner wall of the output bevel gear close to the discharge end is provided with a spline, and the output bevel gear is fixed on the output shaft by interference fit of the spline.
[0008] In one embodiment, the tooth height of the spline is defined as H, which satisfies: 0.4 mm ≤ H ≤ 0.8 mm;
[0009] And / or, the spline is an involute spline.
[0010] In one embodiment, a positioning step is provided on the inner wall of the output bevel gear close to the loading end, and the positioning step is located on a side of the spline close to the loading end;
[0011] Wherein, the positioning step is interference fit with the output shaft and abuts against the convex ring.
[0012] In one embodiment, the positioning step is an annular step extending along the circumference of the output bevel gear, the inner diameter of the positioning step is larger than the inner diameter of the spline, and the inner wall of the positioning step is a smooth wall surface.
[0013] In one embodiment, the inner wall of the output bevel gear has a chip groove, and the chip groove is located on a side of the spline close to the loading end.
[0014] In one embodiment, the chip groove is arranged between the positioning step and the spline;
[0015] And / or, the chip groove is an annular groove and is extended along the circumference of the output bevel gear.
[0016] In one embodiment, a chip angle is provided on a side of the chip groove close to the spline.
[0017] In order to achieve the above object, the utility model also proposes a reducer, comprising:
[0018] Box;
[0019] A bearing, the bearing is installed in the box and connected to the inner wall of the box;
[0020] The bevel gear shaft assembly mentioned above, wherein the bevel gear shaft assembly is arranged in the housing, and the output shaft passes through the bearing;
[0021] An input shell, the input shell is arranged on one side of the box body;
[0022] An input bevel gear is disposed in the input housing and meshes with the output bevel gear.
[0023] In one embodiment, the bearing comprises a first bearing and a second bearing;
[0024] A first end cover is provided at one end of the box body, the output bevel gear is provided between the first end cover and the convex ring, the first bearing is provided between the first end cover and the output bevel gear, and the first end cover is provided with a first locking member, and the first locking member is used to adjust the position of the first end cover to fix the first bearing and the output bevel gear;
[0025] And / or, a second end cover is provided at the other end of the housing, a protrusion is provided on the outer periphery of the output shaft, the second bearing is provided between the second end cover and the protrusion, and the second end cover is provided with a second locking piece, and the second locking piece is used to adjust the position of the second end cover to fix the second bearing.
[0026] In order to achieve the above-mentioned purpose, the utility model also proposes a driving assembly, including a motor and the above-mentioned reducer, wherein the motor drives the reducer to work.
[0027] The technical solution of the utility model is to provide a spline on the inner wall of the output bevel gear near the discharge end, and fix the output bevel gear on the output shaft through the spline interference fit, so as to realize the connection between the output bevel gear and the output shaft in the way of spline and interference fit. Since the tooth height required by the spline is much smaller than the groove depth required by the flat keyway, it can ensure that the wall thickness between the ring gear and the tooth root of the output bevel gear is large enough, thereby effectively improving the transmission strength of the output bevel gear, increasing the gear module of the output bevel gear, increasing the output torque of the output bevel gear, and thus improving the load-bearing capacity of the reducer.
[0028] In addition, since the output bevel gear is fixed on the output shaft by spline interference fit, there is no need to set external splines on the outer periphery of the output shaft, that is, the outer wall of the mounting section of the output shaft is a smooth wall before assembly. Compared with the internal and external spline connection method, it can effectively reduce the requirements for the processing accuracy of the splines set on the output bevel gear, avoid defects that cannot be processed due to structural limitations, and ensure the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0030] Figure 1 A schematic structural diagram of an embodiment of a bevel gear shaft assembly provided by the utility model before assembly;
[0031] Figure 2 A cross-sectional view of an embodiment of a bevel gear shaft assembly provided by the utility model;
[0032] Figure 3 for Figure 2 A partial enlarged view of the middle A;
[0033] Figure 4 A schematic structural diagram of a reducer according to an embodiment of the present invention;
[0034] Figure 5 A cross-sectional view of an embodiment of a reducer provided by the utility model.
[0035] Description of Figure Numbers:
[0036]
[0037]
[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0039] 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 of 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.
[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0042] With the rapid development of the application of precision planetary reducer products, in order to adapt to diversified application scenarios, a planetary reducer with a right-angle output structure has been produced, with planetary transmission input and spiral output bevel gear right-angle output.
[0043] In the related art, a flat key is used to connect the output bevel gear and the output shaft, and a flat keyway needs to be provided in both the inner hole of the output bevel gear and the outer circle of the output shaft. This will make the wall thickness between the bottom of the flat keyway of the output bevel gear and the tooth root too small, resulting in a significant reduction in the strength of the output bevel gear.
[0044] Based on the above problems, the utility model proposes a bevel gear shaft assembly, aiming to improve the transmission strength of the output bevel gear.
[0045] See also Figures 1 to 3In one embodiment of the utility model, the bevel gear shaft assembly 10 may include an output shaft 11 and an output bevel gear 12; the output bevel gear 12 is sleeved on the mounting section of the output shaft 11, and the inner wall of the output bevel gear 12 is provided with a spline 121, and the spline 121 is interference fit with the output shaft 11.
[0046] In this embodiment, the output shaft 11 can be a hollow shaft or a solid shaft, and the specific one can be determined according to actual conditions, and this embodiment of the specification does not limit this.
[0047] In this embodiment, since the spline 121 is interference fit with the output shaft 11 , the outer wall of the output shaft 11 is used to assemble the output bevel gear 12 and is smoothly arranged, and there is no need to arrange an external spline corresponding to the output bevel gear 12 .
[0048] In this embodiment, the output bevel gear 12 and the output shaft 11 are coaxially arranged, which can reduce the energy loss of the cylindrical gear pair in the existing design and improve the transmission efficiency.
[0049] In this embodiment, if Figure 1 and 2 As shown, the loading end 12a of the output bevel gear 12 is the end that is first inserted into the output shaft 11 during the process of installing the output bevel gear 12 into the output shaft 11; the unloading end 12b of the output bevel gear 12 is the end that is first detached from the output shaft 11 during the process of disassembling the output bevel gear 12.
[0050] In this embodiment, a full circle of splines 121 may be provided on the inner wall of the discharge end 12b, or a plurality of sections of splines 121 distributed at circumferential intervals may be provided on the inner wall of the discharge end 12b.
[0051] In this embodiment, the outer wall of the output shaft 11 has a convex ring 112. When the output bevel gear 12 is inserted into the mounting section of the output shaft 11, the insertion end 12a of the output bevel gear 12 abuts against the convex ring 112, so as to axially position the output bevel gear 12 through the convex ring 112 to improve the installation reliability of the output bevel gear 12. In addition, before assembly, the outer wall of the mounting section of the output shaft 11 is a smooth wall surface, and there is no need to set an external spline on the outer periphery of the output shaft 11. Compared with the internal and external spline connection method, the processing accuracy requirements of the spline 121 set on the output bevel gear 12 can be effectively reduced, thereby avoiding the defects that cannot be processed due to structural limitations and ensuring the product qualification rate.
[0052] It should be noted that the installation section of the output shaft 11 refers to a section of the output shaft 11 used for installing the output bevel gear 12 .
[0053] The technical solution of the utility model is to provide a spline 121 on the inner wall of the output bevel gear 12 near the discharge end 12b, and make the output bevel gear 12 interference fixed on the output shaft 11 through the spline 121, so as to realize the connection between the output bevel gear 12 and the output shaft 11 in the way of spline 121 and interference fit. Since the tooth height required by the spline 121 is much smaller than the groove depth required by the flat keyway, it can ensure that the wall thickness between the ring gear and the tooth root of the output bevel gear 12 is large enough, thereby effectively improving the transmission strength of the output bevel gear 12, increasing the gear module of the output bevel gear 12, increasing the output torque of the output bevel gear 12, and thus improving the load-bearing capacity of the reducer 100.
[0054] In addition, since the output bevel gear 12 is fixed on the output shaft 11 by interference fit through the spline 121, there is no need to set an external spline on the outer periphery of the output shaft 11, that is, the outer wall of the mounting section of the output shaft 11 is a smooth wall surface before assembly. Compared with the internal and external spline connection method, the processing accuracy requirements of the spline 121 set on the output bevel gear 12 can be effectively reduced, avoiding the defects of structural limitations that cannot be processed, and ensuring the product qualification rate.
[0055] It should be noted that in the prior art, when the output bevel gear 12 and the output shaft 11 are connected by a flat key, the symmetry requirement between the keyway of the output bevel gear 12 and the keyway of the output shaft 11 is very high, and the processing difficulty is large. Since the bevel gear shaft assembly 10 proposed in this solution does not need to be provided with an external spline on the outer periphery of the output shaft 11, it is not affected by the symmetry requirement of the keyway during assembly, and the processing accuracy requirement of the spline 121 is reduced, and the processing difficulty is low.
[0056] In this embodiment, the spline 121 and the output bevel gear 12 are an integrally formed structure, which can not only ensure the connection strength between the spline 121 and the output bevel gear 12 but also simplify the manufacturing process.
[0057] In actual application, the spline 121 can be a rectangular spline 121 or an involute spline 121, and of course can also be a raised structure of other shapes. The specific shape can be determined according to actual conditions, and the embodiments of this specification do not limit this.
[0058] See also Figure 3In one embodiment of the present invention, the tooth height of the spline 121 is defined as H, which satisfies: 0.4mm≤H≤0.8mm. Specifically, the tooth height of the spline 121 can be 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm. Of course, it can be understood that the tooth height of the spline 121 can also be set to other possible values according to the actual wall thickness of the output shaft 11, such as: 0.21mm, 0.34mm, 0.9mm, etc., and this embodiment of the present specification does not limit this. In this embodiment, the tooth height of the spline 121 is much smaller than the thickness of the flat keyway, so that the wall thickness at the root of the gear ring of the output shaft 11 can be effectively increased.
[0059] In this embodiment, when the tooth height of the spline 121 is too small, the interference fit between the output bevel gear 12 and the output shaft 11 cannot be guaranteed, thereby affecting the connection reliability between the output bevel gear 12 and the output shaft 11; and when the tooth height of the spline 121 is too large, the wall thickness between the ring gear and the tooth root of the output bevel gear 12 will be reduced, thereby affecting the transmission strength of the output bevel gear 12.
[0060] Furthermore, the tooth height H of the spline 121 may preferably be 0.5 mm.
[0061] See also Figure 3 In one embodiment of the present invention, the spline 121 is an involute spline 121 .
[0062] With such an arrangement, the use of the involute spline 121 can make the output bevel gear 12 have a large number of teeth, a thick tooth root, a strong load-bearing capacity, easy automatic centering, and high installation accuracy; and the involute spline 121 is more convenient to use cold rubbing, cold beating, cold extrusion and other chipless processing methods, with high production efficiency, high accuracy, and material saving.
[0063] See also Figure 3 In one embodiment of the utility model, a positioning step 124 may be further provided on the inner wall of the output bevel gear 12 near its loading end 12a, and the positioning step 124 is located on the side of the spline 121 near the loading end 12a; wherein the positioning step 124 is interference fit with the output shaft 11 and abuts against the convex ring 112.
[0064] With such arrangement, during assembly, the positioning step 124 can guide the output bevel gear 12 to be smoothly installed on the output shaft, and the positioning between the output bevel gear 12 and the output shaft 11 can be achieved through the interference fit between the positioning step 124 and the output shaft 11, without the need for manual observation and alignment, which is more convenient and quick.
[0065] In this embodiment, the positioning step 124 may be an annular step disposed around the circumference of the output bevel gear 12 ; or, the positioning step 124 may be a small boss extending along the circumference of the output bevel gear 12 .
[0066] In this embodiment, the positioning step 124 is arranged close to the loading end of the output bevel gear 12, and the spline 121 is arranged away from the loading end of the output bevel gear 12. In this way, during the assembly process, the end of the output bevel gear 12 provided with the positioning step 124 can be pressed into the output shaft 11 first, so as to be positioned under the interference fit between the positioning step 124 and the output shaft 11, and the output bevel gear 12 is continued to be pressed into, so that the end of the output bevel gear 12 provided with the spline 121 is pressed into the output shaft 11 to complete the assembly.
[0067] See also Figure 3 In one embodiment of the utility model, the positioning step 124 is an annular step extending along the circumference of the output bevel gear 12, the inner diameter of the positioning step 124 is larger than the inner diameter of the spline 121, and the inner wall of the positioning step 124 is a smooth wall surface.
[0068] With such a configuration, the inner wall of the positioning step 124 can be a circular hole wall, which is equivalent to positioning the output bevel gear 12 by realizing an interference fit between the positioning step 124 and the output shaft 11, so that the positioning effect between the output bevel gear 12 and the output shaft 11 can be improved. In addition, during assembly, the positioning step 124 can guide the output bevel gear 12 to be smoothly installed on the output shaft, and the positioning between the output bevel gear 12 and the output shaft 11 can be realized through the interference fit between the positioning step 124 and the output shaft 11, without the need for manual observation and alignment, which is more convenient and quick; and the smooth wall surface of the positioning step 124 can reduce the friction with the output shaft 11 during the assembly process, so as to facilitate the assembly of the output bevel gear 12 and the output shaft 11.
[0069] See also Figure 3 In one embodiment of the present invention, the inner wall of the output bevel gear 12 has a chip groove 122, and the chip groove 122 is located on the side of the spline 121 close to the loading end 12a.
[0070] In this arrangement, since the output bevel gear 12 and the output shaft 11 are fitted with interference fit, the spline 121 on the inner side of the output bevel gear 12 will rub against the outer periphery of the output shaft 11 during the assembly process to generate debris. In this way, when the output bevel gear 12 and the output shaft 11 rotate, the debris can be thrown toward the chip groove 122 during the rotation process to be collected in the chip groove 122, thereby avoiding the problem of the generated debris affecting the assembly quality.
[0071] In actual application, the chip groove 122 can be an annular groove, which is arranged around the circumference of the output bevel gear 12; or, the chip groove 122 can also be a small groove extending along the circumference of the output bevel gear 12. The specific shape of the chip groove 122 can be set according to actual conditions, and the embodiments of this specification do not limit this.
[0072] See also Figure 3 In one embodiment of the utility model, the chip groove 122 is arranged between the positioning step 124 and the spline 121 , so that during the assembly process, the debris generated by the friction between the spline 121 and the output shaft 11 can more easily enter the chip groove 122 .
[0073] See also Figure 3 In one embodiment of the present invention, the chip groove 122 is an annular groove and extends along the circumference of the output bevel gear 12 .
[0074] In this arrangement, since the spline 121 is a full circle of splines 121 extending along the circumference of the output bevel gear 12, the chip groove 122 is also extended along the circumference of the output bevel gear 12, so that the chips generated by the friction between the spline 121 and the output shaft 11 can be fully collected by the chip groove 122.
[0075] See also Figure 3 In one embodiment of the present invention, a chip angle 123 is provided on one side of the chip groove 122 close to the spline 121 .
[0076] With such arrangement, during the assembly process, the design of the chip angle 123 can play a guiding role, so that the spline 121 of the output bevel gear 12 can be better installed into the output shaft 11, and the assembly reliability can be improved.
[0077] See also Figure 4 and Figure 5 The utility model also proposes a reducer 100, which includes a housing 20, a bearing, a bevel gear shaft assembly 10, an input housing 40, and an input bevel gear 50. The specific structure of the bevel gear shaft assembly 10 refers to the above embodiment. Since the reducer 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0078] Among them, the bearing is installed in the box body 20 and connected to the inner wall of the box body 20; the bevel gear shaft assembly 10 is arranged in the box body 20, and the output shaft 11 is passed through the bearing; the input housing 40 is arranged on one side of the box body 20; the input bevel gear 50 is arranged in the input housing 40 and meshes with the output bevel gear 12.
[0079] It can be understood that when the input bevel gear 50 rotates, the output bevel gear 12 can be driven to rotate, and the output shaft 11 can be driven to rotate under the rotation of the output bevel gear 12.
[0080] In this embodiment, the output bevel gear 12 is installed in the housing 20 through a bearing, so that the output bevel gear 12 is supported and fixed by the bearing, thereby ensuring the installation reliability of the output bevel gear 12; similarly, the input bevel gear 50 can be installed in the input housing 40 through an input bearing, so that the input bevel gear 50 is supported and fixed by the input bearing, thereby ensuring the installation reliability of the input bevel gear 50.
[0081] See also Figure 5 , in one embodiment of the utility model, the bearing includes a first bearing 31 and a second bearing 32;
[0082] A first end cover 60 is provided at one end of the housing 20, the output bevel gear 12 is provided between the first end cover 60 and the convex ring 112, the first bearing 31 is provided between the first end cover 60 and the output bevel gear 12, and the first end cover 60 is provided with a first locking member 61, which is used to adjust the position of the first end cover 60 to fix the first bearing 31 and the output bevel gear 12;
[0083] And / or, a second end cover 70 is provided at the other end of the housing 20, a protrusion 113 is provided on the outer periphery of the output shaft 11, the second bearing 32 is provided between the second end cover 70 and the protrusion 113, and the second end cover 70 is provided with a second locking member 71, which is used to adjust the position of the second end cover 70 to fix the second bearing 32.
[0084] With such arrangement, the position of the first end cover 60 can be adjusted by the first locking member 61 to clamp the first bearing 31 and the output bevel gear 12 between the first end cover 60 and the convex ring 112, thereby adjusting the position of the first bearing 31 and the output bevel gear 12. This eliminates the need to add an adjustment gasket between the housing 20 and the first end cover 60, reduces the size measurement of axially related components (the first end cover 60, the first bearing 31, the output bevel gear 12), and improves assembly efficiency.
[0085] Similarly, the position of the second end cover 70 can be adjusted by the second locking member 71 to clamp the second bearing 32 between the second end cover 70 and the second protrusion 113. The position of the second bearing 32 can be adjusted without adding an adjustment gasket between the housing 20 and the second end cover 70, thereby improving assembly efficiency.
[0086] Exemplarily, the first locking member 61 and the second locking member 71 may both be locking nuts.
[0087] The utility model also proposes a drive assembly, which includes a motor and a reducer 100. The specific structure of the reducer 100 refers to the above embodiment. Since the drive assembly adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0088] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A bevel gear shaft assembly, characterized in that: include: An output shaft, wherein the outer wall of the mounting section of the output shaft is a smooth wall surface before assembly, and the outer wall of the output shaft has a convex ring, and the convex ring is used to axially position the output bevel gear; The output bevel gear is sleeved on the mounting section of the output shaft, the loading end of the output bevel gear abuts against the convex ring, the inner wall of the output bevel gear close to the discharge end is provided with a spline, and the output bevel gear is fixed on the output shaft by interference fit of the spline.
2. The bevel gear shaft assembly according to claim 1, characterized in that: The tooth height of the spline is defined as H, which satisfies: 0.4 mm ≤ H ≤ 0.8 mm; And / or, the spline is an involute spline.
3. The bevel gear shaft assembly according to claim 1, characterized in that: The inner wall of the output bevel gear close to the loading end is provided with a positioning step, and the positioning step is located on a side of the spline close to the loading end; Wherein, the positioning step is interference fit with the output shaft and abuts against the convex ring.
4. The bevel gear shaft assembly according to claim 3, characterized in that: The positioning step is an annular step extending along the circumference of the output bevel gear, the inner diameter of the positioning step is larger than the inner diameter of the spline, and the inner wall of the positioning step is a smooth wall surface.
5. The bevel gear shaft assembly according to claim 3, characterized in that: The inner wall of the output bevel gear is provided with a chip groove, and the chip groove is located on a side of the spline close to the loading end.
6. The bevel gear shaft assembly according to claim 5, characterized in that: The chip groove is arranged between the positioning step and the spline; And / or, the chip groove is an annular groove and is extended along the circumference of the output bevel gear.
7. The bevel gear shaft assembly according to claim 5, characterized in that: A chip angle is provided on one side of the chip groove close to the spline.
8. A reducer, characterized in that: include: Box; A bearing, the bearing is installed in the box and connected to the inner wall of the box; The bevel gear shaft assembly according to any one of claims 1 to 7, wherein the bevel gear shaft assembly is disposed in the housing, and the output shaft passes through the bearing; An input shell, the input shell is arranged on one side of the box body; An input bevel gear is disposed in the input housing and meshes with the output bevel gear.
9. The reducer according to claim 8, characterized in that: The bearing comprises a first bearing and a second bearing; A first end cover is provided at one end of the box body, the output bevel gear is provided between the first end cover and the convex ring, the first bearing is provided between the first end cover and the output bevel gear, and the first end cover is provided with a first locking member, and the first locking member is used to adjust the position of the first end cover to fix the first bearing and the output bevel gear; And / or, a second end cover is provided at the other end of the housing, a protrusion is provided on the outer periphery of the output shaft, the second bearing is provided between the second end cover and the protrusion, and the second end cover is provided with a second locking piece, and the second locking piece is used to adjust the position of the second end cover to fix the second bearing.
10. A drive assembly, characterized in that: It comprises a motor and a reducer as claimed in claim 8 or 9, wherein the motor drives the reducer to work.