Single-section type hanging bracket transmission shaft

Abstract

The utility model discloses a single-section type hanging bracket transmission shaft, belongs to the technical field of transmission structures, and provides a transmission shaft easier to install. The transmission shaft comprises a first hollow shaft and a second hollow shaft, an optical shaft is fixedly connected between the first hollow shaft and the second hollow shaft, and the optical shaft is suitable for being matched with a hanging bracket to form a rotating pair; the end, back to the optical axis, of the first hollow shaft is provided with a connecting disc suitable for being connected with the output end of a speed reducer, and the end, back to the optical axis, of the second hollow shaft is provided with a universal hinge frame. According to the transmission shaft, the inserted spline groove structure is formed in the end of the shaft body, so that the transmission shaft can be inserted and positioned with the output end of the speed reducer in advance during installation, the overall position of the transmission shaft can be slightly adjusted when the other end of the transmission shaft is installed, the installation flexibility is effectively improved, and the installation process is more convenient; the polished shaft structure with the limiting rings at the two ends is arranged in the middle section of the transmission shaft, so that the transmission shaft is more stable after being matched with the hanging bracket, and the hanging bracket is restrained to play.

Description

Technical Field

[0001] This application relates to the field of transmission structure technology, and in particular to a single-section hanger transmission shaft. Background Technology

[0002] Driveshaft is one of the important components of the power system. For example, in front-engine, rear-wheel-drive vehicles, the distance between the engine and the rear wheels is relatively far, so a longer driveshaft is required. However, a longer driveshaft is not convenient to install. Summary of the Invention

[0003] The purpose of this application is to provide a drive shaft that is easier to install.

[0004] To achieve the above objectives, this application provides a single-section hanger drive shaft: comprising a first hollow shaft and a second hollow shaft, with a light shaft fixedly connected between the first hollow shaft and the second hollow shaft, the light shaft being adapted to cooperate with the hanger to form a rotating pair, the end of the first hollow shaft facing away from the light shaft having a connecting plate adapted to connect to the output end of a reducer, and the end of the second hollow shaft facing away from the light shaft having a universal hinge adapted to rotatably connect with a cross shaft, thereby forming a universal joint with the connecting shaft.

[0005] As a preferred embodiment, the connecting plate has a spline groove in the center that communicates with the interior of the first hollow shaft, which is suitable for insertion into the spline shaft end of the reducer output end to achieve pre-positioning during installation.

[0006] As a preferred embodiment, the diameter of the connecting disc is larger than that of the first hollow shaft, and the connecting disc has bolt holes extending through both ends of the first hollow shaft on the portion extending beyond the outer side of the first hollow shaft, allowing bolts and other connecting components to pass through for fastening.

[0007] As a preferred embodiment, a first limiting ring is provided between the first hollow shaft and the optical axis. The diameter of the first limiting ring is larger than the outer diameter of the first hollow shaft, and the diameter of the optical axis is smaller than the outer diameter of the first hollow shaft, forming a stepped structure.

[0008] As a preferred embodiment, a second limiting ring is provided between the second hollow shaft and the optical shaft. The diameter of the second limiting ring is larger than the outer diameter of the second hollow shaft, and the diameter of the optical shaft is smaller than the outer diameter of the second hollow shaft, thus forming a stepped structure.

[0009] As a preferred embodiment, the axes of the connecting disc, the first hollow shaft, the first limiting ring, the second limiting ring, the optical axis, and the second hollow shaft are collinear to ensure the concentricity of the entire shaft.

[0010] As a preferred embodiment, the connecting disc, the first hollow shaft, the first limiting ring, the second limiting ring, the optical shaft, the second hollow shaft, and the universal hinge are an integral structure to ensure the uniformity of materials and thus ensure the overall structural strength.

[0011] As a preferred embodiment, the universal hinge has a relief groove at one end facing away from the second hollow shaft, and a hinge hole communicating with the relief groove is provided on the outer side of the universal hinge for mounting the cross shaft structure.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By opening a spline groove structure at the end of the shaft, the drive shaft can be pre-positioned with the output end of the reducer during installation. This allows for slight adjustments to the overall position of the drive shaft when installing the other end, effectively improving installation flexibility and making the installation process more convenient.

[0014] (2) By configuring a light shaft structure with limit rings at both ends in the middle section of the drive shaft, the drive shaft and the hanger are more stable after they are combined. The hanger not only provides lifting force to the drive shaft, but also provides constraint to the hanger to suppress forward and backward movement. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the single-section hanger drive shaft.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the single-section hanger drive shaft.

[0017] Figure 3 This is a first three-dimensional sectional view of the overall structure of the single-section hanger drive shaft.

[0018] Figure 4 This is a second perspective sectional view of the overall structure of the single-section hanger drive shaft.

[0019] Figure 5 This is a planar sectional view of the drive shaft of the single-section hanger.

[0020] In the figure: 1. Connecting plate; 101. Spline groove; 102. Bolt hole; 2. First hollow shaft; 3. First limiting ring; 4. Second limiting ring; 5. Optical shaft; 6. Second hollow shaft; 7. Universal hinge; 701. Relief groove; 702. Hinge hole. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] like Figure 1-5 The single-section hanger drive shaft shown includes a cylindrical first hollow shaft 2 and a second hollow shaft 6. Both the first hollow shaft 2 and the second hollow shaft 6 have cylindrical hollow cavities. A light shaft 5 is fixedly connected between the first hollow shaft 2 and the second hollow shaft 6. Specifically, a first limiting ring 3 is provided between the first hollow shaft 2 and the light shaft 5, and the diameter of the first limiting ring 3 is larger than the outer diameter of the first hollow shaft 2, while the diameter of the light shaft 5 is smaller than the outer diameter of the first hollow shaft 2. A second limiting ring 4 is provided between the second hollow shaft 6 and the light shaft 5, and the diameter of the second limiting ring 4 is larger than the outer diameter of the second hollow shaft 6, while the diameter of the light shaft 5 is smaller than the outer diameter of the second hollow shaft 6. In practice, the inner and outer diameters of the first hollow shaft 2 and the second hollow shaft 6 are usually equal, and the diameters of the first limiting ring 3 and the second limiting ring 4 are equal. The light shaft 5 is used to cooperate with the hanger to form a rotating pair, thereby improving the stability of the entire drive shaft during configuration.

[0026] The first hollow shaft 2 has a connecting plate 1 at the end facing away from the optical shaft 5, which is used to connect to the output end of the reducer. The center of the connecting plate 1 has a spline groove 101 that communicates with the inside of the first hollow shaft 2, which is used to engage with the spline shaft end of the reducer output end. The diameter of the connecting plate 1 is significantly larger than that of the first hollow shaft 2. The part of the connecting plate 1 that extends beyond the outer side of the first hollow shaft 2 has bolt holes 102 that pass through both ends. There are several bolt holes 102, which are equidistantly arranged around the axis of the connecting plate 1. It should be noted that the axes of the connecting plate 1, the first hollow shaft 2, the first limiting ring 3, the second limiting ring 4, the optical shaft 5, and the second hollow shaft 6 are collinear, so that the drive shaft will be more stable when rotating.

[0027] The second hollow shaft 6 has a universal hinge 7 at one end facing away from the optical shaft 5. The connecting plate 1, the first hollow shaft 2, the first limiting ring 3, the second limiting ring 4, the optical shaft 5, the second hollow shaft 6 and the universal hinge 7 are an integral structure made by cutting. The universal hinge 7 has a relief groove 701 at one end facing away from the second hollow shaft 6 for placing the cross shaft. The outer side of the universal hinge 7 has a hinge hole 702 that communicates with the relief groove 701. The universal hinge 7 is suitable for rotating connection with the cross shaft through the hinge hole 702, thereby forming a universal joint structure with another shaft that receives power.

[0028] Installation method: During installation, first, insert the spline groove 101 of the connecting plate 1 into the output end of the reducer for pre-positioning. Then, put the hanger over the optical shaft 5. The part where the hanger and the optical shaft 5 cooperate is similar to a clamp structure. The inner wall of the clamp is coated with lubricating oil and is restricted between the first limit ring 3 and the second limit ring 4. Next, use a cross shaft to connect the universal hinge 7 to the connecting shaft. Finally, use bolts to pass through the bolt holes 102 to fix the connecting plate 1 to the output end of the reducer, and the installation is completed.

[0029] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A single-section hanger drive shaft, characterized in that: It includes a first hollow shaft (2) and a second hollow shaft (6), with an optical shaft (5) fixedly connected between the first hollow shaft (2) and the second hollow shaft (6). The optical shaft (5) is adapted to cooperate with the hanger to form a rotating pair. The end of the first hollow shaft (2) facing away from the optical shaft (5) has a connecting plate (1), which is adapted to be connected to the output end of the reducer. The end of the second hollow shaft (6) facing away from the optical shaft (5) has a universal hinge (7), which is adapted to be rotatably connected to the cross shaft.

2. The single-section hanger drive shaft as described in claim 1, characterized in that: The connecting plate (1) has a spline groove (101) in the center that communicates with the interior of the first hollow shaft (2), which is suitable for insertion into the spline shaft end of the reducer output end.

3. The single-section hanger drive shaft as described in claim 2, characterized in that: The diameter of the connecting disc (1) is larger than that of the first hollow shaft (2), and the connecting disc (1) has bolt holes (102) extending through both ends on the part of the connecting disc (1) that extends beyond the outer side of the first hollow shaft (2).

4. The single-section hanger drive shaft as described in any one of claims 1 to 3, characterized in that: A first limiting ring (3) is provided between the first hollow shaft (2) and the optical shaft (5). The diameter of the first limiting ring (3) is greater than the outer diameter of the first hollow shaft (2), and the diameter of the optical shaft (5) is smaller than the outer diameter of the first hollow shaft (2).

5. The single-section hanger drive shaft as described in claim 4, characterized in that: A second limiting ring (4) is provided between the second hollow shaft (6) and the optical shaft (5). The diameter of the second limiting ring (4) is greater than the outer diameter of the second hollow shaft (6), and the diameter of the optical shaft (5) is smaller than the outer diameter of the second hollow shaft (6).

6. The single-section hanger drive shaft as described in claim 5, characterized in that: The axes of the connecting disc (1), the first hollow shaft (2), the first limiting ring (3), the second limiting ring (4), the optical axis (5), and the second hollow shaft (6) are collinear.

7. The single-section hanger drive shaft as described in claim 6, characterized in that: The connecting plate (1), the first hollow shaft (2), the first limiting ring (3), the second limiting ring (4), the optical shaft (5), the second hollow shaft (6), and the universal hinge (7) are an integral structure.

8. The single-section hanger drive shaft as described in claim 7, characterized in that: The universal hinge (7) has a relief groove (701) at one end facing away from the second hollow shaft (6), and the outer side of the universal hinge (7) has a hinge hole (702) that connects to the relief groove (701).

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