Half shaft structure and vehicle
By adopting the design of shaft structure and fixed joint connection with sliding components in the automobile half shaft, the existing half shaft has solved the problem of small movement range and swing angle, achieving large distance telescopic and high-election universalization, suitable for vehicle testing and inspection.
Patent Information
- Application Number
- CN202421733996.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The moving range and swing angle of the existing automobile half-axle are small, and large-distance expansion cannot be achieved, resulting in low degree of universalization, which is not conducive to vehicle testing.
The shaft structure including the first shaft and the second shaft is adopted, and the shaft slides in the axial direction through a sliding assembly, and the fixed joints are connected at both ends of the shaft to increase the swing angle of the half shaft.
The large distance expansion and contraction of the shaft is achieved, the swing angle and degree of universalization of the half-axle are increased, which adapts to the adjustment of vehicle needs, and facilitates vehicle testing and inspection.
Smart Images
Figure CN222756365U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile half-axles, in particular to a half-axle structure and a vehicle. Background Art
[0002] Independent suspension passenger cars need to undergo a series of tests before they are put on the market. However, since the need for suspension adjustment and subsequent plans are not yet clear, a highly adaptable automobile half-axle is needed to develop and use the suspension and half-axle travel.
[0003] In the prior art, the automobile half-axles used in passenger cars with independent suspension structures generally adopt a fixed constant velocity universal joint (referred to as fixed joint) + a telescopic constant velocity universal joint (referred to as mobile joint) or a mobile joint + a mobile joint to achieve torque transmission. However, the rotation angle of the fixed joint is about 45°, the rotation angle of the mobile joint is about 26°, and the movement amount is about 60mm. Therefore, the movement range and swing angle of the automobile half-axles in the prior art are relatively small, and large-distance telescopic movement cannot be achieved, resulting in a low degree of commonality, which is not conducive to vehicle testing. Utility Model Content
[0004] The embodiments of the utility model provide a half-axle structure and a vehicle to solve the problem that the moving range and swing angle of the automobile half-axle are small, and a large distance extension and retraction cannot be achieved, resulting in a low degree of commonality and being unfavorable for vehicle testing.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] The utility model embodiment provides a half-axle structure, comprising:
[0007] A shaft, the shaft comprising a first shaft and a second shaft, wherein a first end of the first shaft and a first end of the second shaft are connected via a sliding assembly, wherein the first shaft can slide axially relative to the second shaft via the sliding assembly;
[0008] Two fixing joints, the second end of the first shaft is connected to one of the fixing joints, and the second end of the second shaft is connected to the other of the fixing joints.
[0009] Optionally, the fixing joint is provided with an internal spline, and the second end of the first shaft rod and the second end of the second shaft rod are respectively provided with an external spline;
[0010] Wherein, through the cooperation of the internal spline and the external spline, the first shaft rod and the second shaft rod are respectively connected to the corresponding fixing joint.
[0011] Optionally, the fixed section includes:
[0012] A fixed joint body, the fixed joint body being connected to the first shaft rod or the second shaft rod;
[0013] A dust cover, one end of which is sleeved on the fixed joint body, and the other end of which is sleeved on a part of the first shaft rod, or the other end of which is sleeved on the second shaft rod and a part of the sliding component in sequence.
[0014] Optionally, the sliding component is a sliding spline or a linear bearing.
[0015] Optionally, an internal spline is provided on the inner side of the sliding assembly;
[0016] One end of the first shaft is provided with an external spline, and the first shaft is connected to one end of the sliding assembly through the cooperation of the external spline and the internal spline;
[0017] One end of the second shaft is provided with an external spline, and the second shaft is connected to the other end of the sliding assembly through the cooperation of the external spline with the internal spline.
[0018] Optionally, the end face of the fixing joint is a toothed flange structure, wherein the end face is a side facing away from the shaft rod.
[0019] An embodiment of the utility model further provides a vehicle, comprising a half-axle structure as described in any one of the above items.
[0020] The beneficial effect of the present invention is that a fixed joint (i.e., a fixed constant velocity universal joint) is respectively connected to both ends of the shaft rod, which can increase the swing angle of the half-axle. In addition, the shaft rod includes a first shaft rod and a second shaft rod, and the first shaft rod and the second shaft rod are connected by a sliding assembly. Through the sliding assembly, the first shaft rod can slide axially relative to the second shaft rod, that is, the shaft rod can be extended and retracted over a large distance along the axial direction. Therefore, the half-axle structure of the embodiment of the present invention has a high degree of commonality, which is conducive to vehicle testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A structural schematic diagram showing a semi-axle structure provided by the utility model.
[0022] Description of reference numerals:
[0023] 1. Shaft; 2. Sliding assembly; 3. Fixed joint; 4. End face; 31. Dust cover. DETAILED DESCRIPTION
[0024] In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the utility model. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the utility model. In addition, for clarity and brevity, the description of known functions and structures is omitted.
[0025] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0026] In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
[0027] like Figure 1 As shown, the utility model provides a half-axle structure for the problem that the moving range and swing angle of the automobile half-axle are small, and a large distance telescopic extension cannot be achieved, resulting in a low degree of generalization and being unfavorable for vehicle testing, including:
[0028] A shaft 1, comprising a first shaft and a second shaft, wherein a first end of the first shaft and a first end of the second shaft are connected via a sliding assembly 2, wherein the first shaft can slide axially relative to the second shaft via the sliding assembly 2;
[0029] Two fixing nodes 3 , the second end of the first shaft is connected to one of the fixing nodes 3 , and the second end of the second shaft is connected to the other of the fixing nodes 3 .
[0030] In the embodiment of the utility model, the shaft 1 includes a first shaft and a second shaft, and the first end of the first shaft and the first end of the second shaft are connected by a sliding assembly 2 ( Figure 1The shaft rod on the left side of the middle sliding component 2 is the first shaft rod, and the second shaft rod is not shown in the figure). Through the sliding component 2, the first shaft rod can slide axially relative to the second shaft rod, that is, the shaft rod 1 can achieve a large distance extension and retraction along the axial direction. In addition, the second end of the first shaft rod is connected to a fixed node 3 (that is, a fixed constant velocity universal joint), and the second end of the second shaft rod is connected to another fixed node 3 (a part of the first shaft rod is wrapped in the fixed node 3, and the second shaft rod is completely wrapped in the fixed node 3, so the second shaft rod is not shown). A fixed node 3 is respectively connected to both ends of the shaft rod 1, which can increase the half-axis swing angle and increase the half-axis swing angle to about 45°.
[0031] Therefore, the half-axle structure provided in the embodiment of the utility model has a high degree of commonality, a large swing angle of the half-axle, and can achieve large-distance extension and retraction. During vehicle testing (such as early suspension verification of the vehicle), it can adapt to the continuous adjustment of vehicle needs, and can also upgrade the half-axle structure to a detection means. By performing detection (such as detection of wear conditions) through the half-axle structure provided in this embodiment, the use range of the suspension and the half-axle can be fed back.
[0032] Optionally, the fixing section 3 is provided with an internal spline, and the second end of the first shaft rod and the second end of the second shaft rod are respectively provided with an external spline;
[0033] Wherein, through the cooperation of the internal spline and the external spline, the first shaft rod and the second shaft rod are respectively connected to the corresponding fixing joint 3.
[0034] In the embodiment of the utility model, the first shaft rod and the second shaft rod are connected to the fixing section 3 in a manner of internal and external spline matching, which is convenient for installation and disassembly.
[0035] Optionally, the fixing section 3 includes:
[0036] A fixed joint body, the fixed joint body being connected to the first shaft rod or the second shaft rod;
[0037] A dust cover 31, one end of the dust cover 31 is sleeved on the fixed joint body, and the other end of the dust cover 31 is sleeved on a part of the first shaft rod, or the other end of the dust cover 31 is sleeved on the second shaft rod and a part of the sliding component 2 in sequence.
[0038] In the embodiment of the utility model, the connection method between the fixing section 3 and the shaft rod is specifically described as follows: Figure 1As shown, for the fixed section 3 and the first shaft, the fixed section body is connected to the first shaft, one end of the dust cover 31 is sleeved on the fixed section body, and the other end is sleeved on part of the first shaft, which has a dustproof effect; for the fixed section 3 and the second shaft, the fixed section body is connected to the second shaft, one end of the dust cover 31 is sleeved on the fixed section body, and the other end is sleeved on the second shaft and part of the sliding assembly 2 in sequence, which has a dustproof effect. It can be seen from the above structure that the second shaft is completely wrapped in the dust cover 31 and is fixed relative to the sliding assembly 2, and the first shaft is partially wrapped in the dust cover 31 and can slide axially relative to the sliding assembly 2.
[0039] Optionally, the sliding component 2 is a sliding spline or a linear bearing.
[0040] In the embodiment of the utility model, the sliding component 2 is a sliding spline or a linear bearing, which can realize a large distance extension and retraction of the shaft rod 1 and increase the use range of the half shaft, but the utility model is not limited to this. The sliding component 2 can also be other components as long as it can produce the same technical effect.
[0041] Optionally, an internal spline is provided on the inner side of the sliding component 2;
[0042] One end of the first shaft is provided with an external spline, and the first shaft is connected to one end of the sliding component 2 through the cooperation of the external spline and the internal spline;
[0043] One end of the second shaft rod is provided with an external spline, and the second shaft rod is connected to the other end of the sliding component 2 through the cooperation of the external spline and the internal spline.
[0044] In an embodiment of the utility model, one of the connection methods between the shaft rod 1 and the sliding component 2 is described. The shaft rod 1 and the sliding component 2 can be connected by internal and external splines (for example, when the sliding component 2 is a sliding spline). The internal and external splines can realize axial movement of the first shaft rod relative to the second shaft rod, thereby realizing a large axial extension and retraction distance of the shaft rod 1 and increasing the use range of the half shaft.
[0045] Optionally, the end surface 4 of the fixing section 3 is a toothed flange structure, wherein the end surface 4 is a surface facing away from the shaft rod 1 .
[0046] In the embodiment of the utility model, the fixing section 3 is connected to the outside through the end surface 4. The end surface 4 adopts a toothed flange structure, which complies with existing standards and general serialization requirements and is easy to disassemble and assemble.
[0047] An embodiment of the utility model further provides a vehicle, comprising a half-axle structure as described in any one of the above items.
[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0050] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0052] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications are also within the protection scope of the present invention.
Claims
1. A half-axle structure, characterized in that: include: A shaft (1), the shaft comprising a first shaft and a second shaft, the first end of the first shaft and the first end of the second shaft being connected via a sliding assembly (2), wherein the first shaft can slide axially relative to the second shaft via the sliding assembly (2); Two fixing sections (3), the second end of the first shaft rod is connected to one of the fixing sections (3), and the second end of the second shaft rod is connected to the other of the fixing sections (3).
2. The half-axle structure according to claim 1, characterized in that: The fixing joint (3) is provided with an internal spline, and the second end of the first shaft rod and the second end of the second shaft rod are respectively provided with an external spline; Wherein, through the cooperation of the internal spline and the external spline, the first shaft rod and the second shaft rod are respectively connected to the corresponding fixing joint (3).
3. The semi-axle structure according to claim 1 or 2, characterized in that: The fixing section (3) comprises: A fixed joint body, the fixed joint body being connected to the first shaft rod or the second shaft rod; A dust cover (31), one end of the dust cover (31) is sleeved on the fixed joint body, and the other end of the dust cover (31) is sleeved on a portion of the first shaft rod, or the other end of the dust cover (31) is sleeved on the second shaft rod and a portion of the sliding component (2) in sequence.
4. The half-shaft structure according to claim 1, characterized in that: The sliding component (2) is a sliding spline or a linear bearing.
5. The half-shaft structure according to claim 1, characterized in that: The inner side of the sliding component (2) is provided with an internal spline; One end of the first shaft is provided with an external spline, and the first shaft is connected to one end of the sliding component (2) through the cooperation of the external spline and the internal spline; One end of the second shaft is provided with an external spline, and the second shaft is connected to the other end of the sliding component (2) through the cooperation of the external spline and the internal spline.
6. The half-shaft structure according to claim 1, characterized in that: The end surface (4) of the fixing section (3) is a toothed flange structure, wherein the end surface (4) is the side facing away from the shaft (1).
7. A vehicle, characterized in that: Comprising the semi-axle structure as claimed in any one of claims 1 to 6.