Speed reducer shell
By setting reinforcement ribs in the circumference of the installation through hole of the reducer housing and using the groove structure to make them directly in contact with lubricating oil and air, the problem of poor increase in the weight of the housing and heat dissipation effect in the prior art is solved. , achieving high rigidity and excellent heat dissipation performance of the shell.
Patent Information
- Application Number
- CN202421251725.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing reducer shells increase the weight and manufacturing cost of the shell in the reinforcement rib structural design, and the internal rib strips cannot directly contact the external air, resulting in poor heat dissipation effect.
A reducer housing is designed, by providing reinforcement ribs along the outer wall of the circumference of the installation through holes, and using the structures of the first groove and the second groove, the reinforcement ribs and the connecting rib plate are alternately connected to form the inner cavity of the shell. Ensure that the three sides of the reinforcement ribs can be in direct contact with the lubricant and external air, thereby improving heat dissipation performance.
Effectively avoid the increase in the weight of the shell caused by the addition of reinforcement ribs, improve the overall rigidity of the shell, and significantly improve the heat dissipation performance. The effective heat exchange area is increased through the direct contact between the reinforcement ribs and air, achieving the best heat dissipation Effect.
Smart Images
Figure CN222254994U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducers, in particular to a reducer housing. Background Art
[0002] The reducer housing is the housing structure for installing the reducer transmission mechanism and its accessories. It is mainly used to carry and contain various components. Compared with traditional models, new energy vehicles have higher requirements for the rigidity and heat dissipation performance of the reducer housing.
[0003] In order to improve the rigidity and heat dissipation performance of the reducer housing, a reinforcing rib structure is usually designed on the reducer housing. The current common reinforcing rib structure is to add a plurality of raised ribs arranged along the radial direction of the bearing hole on the two side surfaces of the cavity wall between the bearing hole of the housing and the circumferential inner wall of the housing, and these ribs are evenly spaced along the circumference of the bearing hole.
[0004] However, during the production process of the shell, the design of the above-mentioned reinforcing rib structure will increase the weight of the shell, resulting in higher manufacturing costs and prone to local casting defects; at the same time, during actual use, the ribs arranged inside the shell cannot directly contact the external air, the effective heat exchange area of the shell cannot be increased, and the improvement in the heat dissipation effect of the shell is not obvious. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a reducer housing, aiming to solve the technical problem that the reinforcing rib structure in the reducer housing of the prior art will increase the weight of the housing during the production process of the housing, resulting in higher manufacturing costs and easy formation of local casting defects; in actual use, the ribs arranged inside the housing cannot directly contact the outside air, the effective heat exchange area of the housing cannot be increased, and the improvement of the heat dissipation effect of the housing is not obvious.
[0006] The purpose of the utility model is to provide a reducer housing, including a housing body, the housing body is provided with a mounting through hole, the circumferential outer wall of the mounting through hole is provided with a plurality of spaced reinforcing ribs extending along the radial direction of the mounting through hole toward the circumferential inner wall of the housing body, the reinforcing ribs are provided with a first groove, two adjacent reinforcing ribs are connected by a connecting rib plate to form a second groove, the notch of the first groove is arranged in the opposite direction to the notch of the second groove, a plurality of the reinforcing ribs and a plurality of the connecting rib plates are alternately connected in sequence along the circumference of the mounting through hole to form two side inner cavities of the housing body arranged along the axial direction of the mounting through hole.
[0007] Compared with the existing reducer housing, the beneficial effect of the reducer housing of the utility model is that: the inner cavity of the housing is formed by a plurality of reinforcing ribs and a plurality of connecting rib plates connected alternately in sequence along the circumference of the mounting through hole. The inner cavity structure of the reducer housing of the utility model has the structural characteristics of the reinforcing ribs, and no additional reinforcing ribs are required, which avoids the problem of significant increase in the weight of the housing caused by the additional reinforcing ribs. The connection design of the reinforcing ribs and the connecting rib plates can ensure that the forces on both sides of the housing bearing seat are balanced during use, thereby improving the overall rigidity of the housing. Further, a first groove is provided on the reinforcing rib, and a second groove is provided between two adjacent reinforcing ribs, so that the three inner sides and three outer sides of the reinforcing ribs can be directly in contact with the lubricating oil and the external air respectively. Specifically, in actual use, the three inner sides of the reinforcing ribs are in direct contact with the reducer lubricating oil, and the heat from the lubricating oil is first transferred to the three inner sides of the reinforcing ribs, and then directly transferred to the external air through the three outer sides of the reinforcing ribs. The effective heat exchange area on both sides of the axial direction of the mounting through hole on the housing is increased, thereby significantly improving the heat dissipation performance of the housing and achieving the best heat dissipation effect.
[0008] In addition, the reducer housing according to the utility model may also have the following additional technical features:
[0009] Further, the reinforcing rib includes a first rib plate, and second rib plates extending outwardly from both sides of the first rib plate along the axial direction of the mounting through hole, and the first rib plate and the two second rib plates are connected to form the first groove;
[0010] One end of the second rib plate away from the first rib plate is connected to the connecting rib plate, and the connecting rib plate and the two second rib plates are connected to form the second groove.
[0011] Furthermore, the mounting through hole includes a first opening end and a second opening end, the aperture of the first opening end is smaller than the aperture of the second opening end, one end of the first rib is connected to the circumferential outer wall of the first opening end, and the other end of the first rib is connected to the circumferential inner wall of the shell body; one end of the connecting rib is connected to the circumferential outer wall of the second opening end, and the other end of the connecting rib is connected to the circumferential inner wall of the shell body.
[0012] Further, the notch of the first groove is arranged on the same side as the second opening end, and the notch of the second groove is arranged on the same side as the first opening end.
[0013] Furthermore, the first rib is inclined from the circumferential outer wall of the first opening end toward the circumferential inner wall of the shell body.
[0014] Further, in the axial direction of the mounting through hole, a connection between the first rib plate and the circumferential outer wall of the first opening end is higher than a connection between the first rib plate and the circumferential inner wall of the shell body.
[0015] Furthermore, the connecting ribs are arranged horizontally.
[0016] Furthermore, the plate widths of the first rib plate and the connecting rib plate gradually increase along the radial direction of the mounting through hole.
[0017] Furthermore, the groove depths of the first groove and the second groove are both smaller than the hole depth of the mounting through hole.
[0018] Furthermore, in the radial direction of the mounting through hole, a partition rib is provided on one side of the mounting through hole, and the partition rib is an arc-shaped plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional structural diagram of the reducer housing of the utility model at a first viewing angle;
[0020] Figure 2 It is a structural schematic diagram of the reducer housing of the utility model;
[0021] Figure 3 for Figure 2 The cross-sectional structure diagram at AA in the middle;
[0022] Figure 4 It is a three-dimensional structural diagram of the reducer housing of the utility model at a second viewing angle.
[0023] Among them, the above-mentioned drawings include the following figure marks: 1-shell body; 11-installation through hole; 2-reinforcement rib; 21-first rib plate; 22-second rib plate; 3-connecting rib plate; 201-first groove; 202-second groove; 4-partitioning rib plate.
[0024] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0028] See also Figures 1 to 4 The reducer housing of the utility model includes a housing body 1, which is provided with a mounting through hole 11. The circumferential outer wall of the mounting through hole 11 is provided with a plurality of spaced reinforcing ribs 2 extending along the radial direction of the mounting through hole 11 toward the circumferential inner wall of the housing body 1. The reinforcing ribs 2 are provided with a first groove 201. Two adjacent reinforcing ribs 2 are connected by a connecting rib plate 3 to form a second groove 202. The notch of the first groove 201 is arranged in the opposite direction to the notch of the second groove 202. The plurality of reinforcing ribs 2 and the plurality of connecting rib plates 3 are alternately connected in sequence along the circumference of the mounting through hole 11 to form two side inner cavities of the housing body 1 arranged along the axial direction of the mounting through hole 11.
[0029] As an example, the reinforcing rib 2 includes a first rib plate 21, and second rib plates 22 extending outwardly from both sides of the first rib plate 21 along the axial direction of the mounting through hole 11, the first rib plate 21 and the two second rib plates 22 are connected to form a first groove 201; the end of the second rib plate 22 away from the first rib plate 21 is connected to the connecting rib plate 3, and the connecting rib plate 3 and the two second rib plates 22 are connected to form a second groove 202. Among them, the mounting through hole 11 includes a first opening end and a second opening end, and the aperture of the first opening end is smaller than the aperture of the second opening end. As a specific example, in this embodiment, the first opening end is used to install an oil seal, and the second opening end is used to install a bearing. Further, the circumferential outer wall of the first opening end extends outwardly along the radial direction of the opening with multiple first rib plates 21, that is, one end of the first rib plate 21 is connected to the circumferential outer wall of the first opening end, and the other end of the first rib plate 21 is connected to the circumferential inner wall of the shell body 1. The circumferential outer wall of the second opening end has a plurality of connecting ribs 3 extending outwardly along the radial direction of the opening, that is, one end of the connecting rib 3 is connected to the circumferential outer wall of the second opening end, and the other end of the connecting rib 3 is connected to the circumferential inner wall of the shell body 1. It should be noted that in the circumferential direction of the mounting through hole 11, the first rib 21 and the connecting rib 3 are staggered.
[0030] Further, the notch of the first groove 201 is arranged on the same side as the second opening end, and the notch of the second groove 202 is arranged on the same side as the first opening end.
[0031] In this embodiment, the first rib 21 is arranged at an angle. Specifically, the first rib 21 is inclined from the circumferential outer wall of the first opening end toward the circumferential inner wall of the shell body 1. Furthermore, in the axial direction of the mounting through hole 11, the connection between the first rib 21 and the circumferential outer wall of the first opening end is higher than the connection between the first rib 21 and the circumferential inner wall of the shell body 1.
[0032] Furthermore, the plate width of the first rib plate 21 gradually increases along the radial direction of the mounting through hole 11. As a specific example, in the present embodiment, the first rib plate 21 is an inclined trapezoidal plate, the upper bottom edge of the trapezoidal plate is connected to the circumferential outer wall of the first opening end, and the lower bottom edge is connected to the circumferential inner wall of the shell body 1, and the waist edges on both sides extend along the axial direction of the mounting through hole 11 toward the direction of the second opening end with a second rib plate 22.
[0033] Furthermore, the connecting rib plate 3 is horizontally arranged, and the plate width of the connecting rib plate 3 gradually increases along the radial direction of the mounting through hole 11. As a specific example, in the present embodiment, the connecting rib plate 3 is a horizontally arranged trapezoidal plate, and its two side waist edges are respectively connected to the side edges of the second rib plate 22 away from the first rib plate 21. It should be noted that, in the circumferential direction of the mounting through hole 11, the plate width of the connecting rib plate 3 is smaller than the plate width of the first rib plate 21. In other words, in the circumferential direction of the mounting through hole 11, the slot width of the second groove 202 is smaller than the slot width of the first groove 201.
[0034] Furthermore, the depths of the first groove 201 and the second groove 202 are both smaller than the depth of the mounting through hole 11 .
[0035] Furthermore, in the radial direction of the mounting through hole 11, a partition rib plate 4 is further provided on one side of the mounting through hole 11, and the partition rib plate 4 is an arc-shaped plate. As a specific example, in this embodiment, the arc center of the partition rib plate 4 is located on the side where the mounting through hole 11 is located, the partition rib plate 4 penetrates the inner cavity on both sides of the shell body 1, and the plate width of the partition rib plate 4 along the axial direction of the mounting through hole 11 is greater than the hole depth of the mounting through hole 11, such as Figure 1 and Figure 4 As shown in the figure, the partition rib 4 divides the first groove 201 and the second groove 202 located on the radial side of the mounting through hole 11 into two parts, and the partition rib 4 is higher than the first rib 21 and the connecting rib 3, thereby playing the role of oil blocking.
[0036] During actual use, the beneficial effect of the reducer housing of the utility model is that: by arranging multiple reinforcing ribs 2 and multiple connecting rib plates 3 which are alternately connected in sequence along the circumference of the mounting through hole 11, an inner cavity between the circumferential outer wall of the mounting through hole 11 and the circumferential inner wall of the housing is formed. That is to say, the inner cavity structure of the reducer housing of the utility model itself has the structural characteristics of reinforcing ribs, and there is no need to add additional reinforcing ribs, thereby avoiding a significant increase in the weight of the housing caused by the additional addition of reinforcing ribs. In the utility model, the cross-section of two adjacent reinforcing ribs 2 when connected by the connecting rib plates 3 is an S-shaped structure. Such a structure can ensure that the two sides of the axial direction of the mounting through hole 11 on the housing, that is, the two sides of the housing bearing seat, are subjected to balanced force during use, thereby improving the overall rigidity of the housing. Furthermore, a first groove 201 is provided on the reinforcing rib 2, and a second groove 202 is provided between two adjacent reinforcing ribs 2, so that the two sides of the reinforcing rib 2 can be directly in contact with the lubricating oil and the external air respectively. The first groove 201 is used to store the lubricating oil, and the second groove 202 is used as a heat dissipation groove to improve the heat dissipation effect of the shell. Specifically, during use, the lubricating oil is fully in contact with the three side groove walls of the first groove 201. In other words, the three inner sides of the reinforcing rib 2 are in direct contact with the lubricating oil of the reduction gearbox. The heat from the lubricating oil is first transferred to the three inner sides of the reinforcing rib 2, and then directly transferred to the external air through the three outer sides of the reinforcing rib 2. The effective heat exchange area on both sides of the axial direction of the mounting through hole 11 on the shell is increased, thereby significantly improving the heat dissipation performance of the shell and achieving the best heat dissipation effect.
[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A reducer housing, characterized in that: It includes a shell body, which is provided with a mounting through hole, and the circumferential outer wall of the mounting through hole is provided with a plurality of spaced reinforcing ribs extending along the radial direction of the mounting through hole toward the circumferential inner wall of the shell body, the reinforcing ribs are provided with a first groove, and two adjacent reinforcing ribs are connected by a connecting rib plate to form a second groove, and the notch of the first groove is arranged in the opposite direction to the notch of the second groove, and a plurality of the reinforcing ribs and a plurality of the connecting rib plates are alternately connected in sequence along the circumference of the mounting through hole to form two side inner cavities of the shell body arranged along the axial direction of the mounting through hole.
2. The reducer housing according to claim 1, characterized in that: The reinforcing rib comprises a first rib plate and second rib plates extending outwardly from both sides of the first rib plate along the axial direction of the mounting through hole, and the first rib plate and the two second rib plates are connected to form the first groove; One end of the second rib plate away from the first rib plate is connected to the connecting rib plate, and the connecting rib plate and the two second rib plates are connected to form the second groove.
3. The reducer housing according to claim 2, characterized in that: The mounting through hole includes a first opening end and a second opening end, the aperture of the first opening end is smaller than the aperture of the second opening end, one end of the first rib is connected to the circumferential outer wall of the first opening end, and the other end of the first rib is connected to the circumferential inner wall of the shell body; one end of the connecting rib is connected to the circumferential outer wall of the second opening end, and the other end of the connecting rib is connected to the circumferential inner wall of the shell body.
4. The reducer housing according to claim 3, characterized in that: The notch of the first groove is arranged on the same side as the second opening end, and the notch of the second groove is arranged on the same side as the first opening end.
5. The reducer housing according to claim 3, characterized in that: The first rib is inclined from the circumferential outer wall of the first opening end toward the circumferential inner wall of the shell body.
6. The reducer housing according to claim 5, characterized in that: In the axial direction of the mounting through hole, a connection between the first rib plate and the circumferential outer wall of the first opening end is higher than a connection between the first rib plate and the circumferential inner wall of the shell body.
7. The reducer housing according to claim 3, characterized in that: The connecting ribs are arranged horizontally.
8. The reducer housing according to claim 2, characterized in that: The plate widths of the first rib plate and the connecting rib plate gradually increase along the radial direction of the mounting through hole.
9. The reducer housing according to claim 1, characterized in that: The groove depths of the first groove and the second groove are both smaller than the hole depth of the mounting through hole.
10. The reducer housing according to claim 1, characterized in that: In the radial direction of the installation through hole, a partition rib plate is further provided on one side of the installation through hole, and the partition rib plate is an arc-shaped plate.