Differential spider for vehicle

Abstract

The utility model provides a vehicle differential spider which comprises a spider body, an extending shaft rod and a pressing oil outlet assembly, the spider body comprises a disc body and a plurality of shaft necks, the shaft necks are evenly distributed on the disc body, one end of the extending shaft rod is movably arranged in a containing groove formed in the shaft necks, and the extending shaft rod moves in the containing groove, so that the oil outlet assembly can be pressed on the spider body. The extension shaft rod is provided with a through groove, the pressing oil outlet assembly is provided with an extrusion part, the extrusion part is movably arranged in the through groove, and the shaft neck is provided with a liquid outlet hole communicated with the containing groove. According to the universal joint pin, oil liquid is extruded through the extrusion component, the oil liquid can overflow from the liquid outlet hole, so that the outer portion of the shaft neck is lubricated, the overall length of the shaft neck can be changed through cooperation of the extension shaft rod, and the problem that the universality is limited due to the fact that the size of an existing universal joint pin is fixed is solved.

Description

Technical Field

[0001] The present application relates to the technical field of cross shafts, and in particular to a cross shaft for a vehicle differential. Background Art

[0002] The automotive differential cross shaft is a key component in the differential. Its main function is to allow the left and right drive wheels to rotate at different speeds when the vehicle turns. However, the journal size of the existing cross shaft used to connect with the vehicle's transmission components is fixed in length. Different car models may require automotive differential cross shafts of different lengths to match their transmission system designs. As a result, auto repair shops and manufacturers need to stock cross shafts of different lengths for different models, which increases costs and limits their versatility and market adaptability. Utility Model Content

[0003] The purpose of the utility model is to provide a vehicle differential cross shaft in order to solve the above problems.

[0004] The technical solution of this application is achieved as follows:

[0005] The present application provides a cross shaft for a vehicle differential, comprising a cross shaft body, an extension shaft rod, and a press-discharge oil assembly. The cross shaft body comprises a disc body and a journal. The journals are provided with a plurality of journals evenly distributed on the disc body. The journals have a receiving groove. One end of the extension shaft rod is movably disposed in the receiving groove. The journals are provided with a liquid outlet hole connected to the receiving groove.

[0006] The inner wall of the receiving groove is provided with a thread groove, and the outer periphery of the extension shaft is provided with a convex thread matching the thread groove, and the extension shaft is threadedly connected to the shaft neck through the cooperation of the thread groove and the convex thread;

[0007] The extension shaft is provided with a through groove, and the oil pressing assembly is provided with an extrusion component, which is movably arranged in the through groove. When the extension shaft is located in the shaft neck, an oil storage area is formed between the extrusion component and the accommodating groove, and the liquid outlet is located in the oil storage area.

[0008] In one embodiment, the extrusion component includes a support rod and an annular stop pad, the support rod is movably disposed in the through groove, one end of the support rod extends to the outside of the extension shaft and is connected to the annular stop pad;

[0009] When the extended shaft is located in the shaft neck, the outer periphery of the annular retaining pad fits into the inner wall of the accommodating groove;

[0010] The oil storage area is located between the annular baffle and the end surface of the accommodating groove. The oil storage area increases or decreases by the movement of the support rod in the through groove.

[0011] In one embodiment, the outer circumference of the journal is provided with a plurality of oil storage grooves distributed at intervals, wherein one end of a group of oil storage grooves is connected to the liquid outlet.

[0012] In one embodiment, a plurality of guide grooves are provided on the outer periphery of the journal at intervals;

[0013] The guide groove is located between two adjacent groups of oil storage tanks, and both ends of the guide groove are respectively connected to the oil storage tanks.

[0014] In one embodiment, the extrusion component further comprises an elastic member, one end of the elastic member is connected to the extension shaft, and the other end is connected to the annular stopper;

[0015] The support rod is located in the elastic member;

[0016] The elastic member is deformed elastically to move the annular stop pad closer to or farther from the extension shaft.

[0017] In one embodiment, the length of the male thread is greater than the length of the thread groove.

[0018] In one embodiment, a slot is further provided on the extension shaft, and the slot is located in one group of adjacent oil storage grooves.

[0019] The advantages or beneficial effects of the above technical solution include at least:

[0020] The present application provides a cross shaft for a vehicle differential. A receiving groove is provided on the journal of the cross shaft body, and an extension shaft rod is moved and set in the receiving groove, thereby extending the length of the journal when connected to other components. The cross shaft is provided with a pressing oil outlet component. When oil is injected into the receiving groove, the oil is squeezed by pressing the extrusion component in the oil outlet component, so that the oil flows out from the liquid outlet hole of the journal, thereby completing the lubrication operation of the journal. The movement of the extension shaft rod can be adjusted according to the required length, thereby improving the overall application range of the cross shaft, improving the overall use flexibility of the cross shaft, and solving the problem that the existing cross shaft has a fixed length, which limits its versatility and market adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings illustrate exemplary embodiments of the present application and together with the description serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0022] Figure 1 A schematic diagram of the exploded structure of a vehicle differential cross shaft according to an embodiment of the present application is presented;

[0023] Figure 2 A schematic structural diagram of a cross-axis body according to an embodiment of the present application from one perspective is presented;

[0024] Figure 3 A structural schematic diagram of a vehicle differential cross shaft according to an embodiment of the present application from one perspective is presented;

[0025] Figure 4 A schematic cross-sectional view of the oil-discharging assembly installed on an extended shaft according to an embodiment of the present application is provided;

[0026] Figure 5 A schematic diagram of the structure of the oil-pressing assembly installed on the extension shaft according to an embodiment of the present application is presented;

[0027] Figure 6 The present application embodiment is presented Figure 1 A in the middle is an enlarged schematic diagram;

[0028] Reference numerals: 1, cross shaft body; 11, disk body; 12, journal; 121, receiving groove; 1211, thread groove; 122, liquid outlet; 123, oil storage tank; 124, guide groove;

[0029] 2. Extended shaft; 21. Male thread; 22. Through groove; 23. Notch;

[0030] 3. Press oil outlet assembly; 31. Extrusion component; 311. Support rod; 312. Annular baffle; 32. Elastic member. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although certain embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are for illustrative purposes only and are not intended to limit the scope of protection of the present application.

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be understood that the term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "several" mentioned in this application are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0035] The names of the messages or information exchanged between multiple devices in the embodiments of the present application are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0036] Reference Figures 1-6 A cross shaft for a vehicle differential includes a cross shaft body 1, an extension shaft rod 2, and a press-on oil outlet assembly 3. The cross shaft body 1 includes a disc body 11 and a journal 12. A plurality of journals 12 are provided and evenly distributed on the disc body 11. The journal 12 is used to connect with external vehicle components. The journal 12 has a receiving groove 121. One end of the extension shaft rod 2 is movably disposed in the receiving groove 121. The journal 12 is provided with a liquid outlet 122 connected to the receiving groove 121. After oil is injected into the receiving groove 121, the oil can be discharged through the liquid outlet 122.

[0037] The inner wall of the accommodating groove 121 is provided with a thread groove 1211, and the outer periphery of the extension shaft rod 2 is provided with a convex thread 21 matching the thread groove 1211. The extension shaft rod 2 is threadedly connected to the shaft neck 12 through the cooperation of the thread groove 1211 and the convex thread 21. The threaded connection can make the extension shaft rod 2 firmly installed on the shaft neck 12, so that when the extension shaft rod 2 is connected to the automobile component, it is not easy to shake and there is a risk of falling. The length of the convex thread 21 is greater than the length of the thread groove 1211. Since the convex thread 21 is located on the extension shaft rod 2, the longer convex thread 21 can enable the extension shaft rod 2 to be threadedly connected to different positions of the shaft neck 12.

[0038] The extension shaft 2 has a through groove 22, and the oil pressing assembly 3 is provided with an extrusion component 31. The extrusion component 31 is movably set in the through groove 22. When the extension shaft 2 is located in the shaft neck 12, an oil storage area is formed between the extrusion component 31 and the accommodating groove 121, and the liquid outlet 122 is located in the oil storage area.

[0039] Based on the above structure, by injecting part of the oil that needs to be lubricated into the accommodating groove 121 of the journal 12, and then threading the extension shaft rod 2 to the journal 12, and adjusting the part of the extension shaft rod 2 located outside the journal 12 according to the length required for connection, when the extension shaft rod 2 is located on the journal 12, one end of the extrusion component 31 is located outside the through groove 22. When the journal 12 needs to be lubricated, the extrusion component 31 is moved to squeeze the oil pressure, and the squeezed oil flows out to the outside of the journal 12 through the outlet hole 122, thereby completing the lubrication of the journal 12, further improving the lubrication effect during the installation of the cross shaft, and by separating the journal 12 and the extension shaft rod 2, the part of the extension shaft rod 2 located outside the journal 12 can be adjusted according to actual installation needs, so that it is suitable for different vehicle models, and solves the problem that the existing cross shaft is fixed in length and cannot be adjusted according to actual conditions, and has limitations in use.

[0040] In one embodiment, referring to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 The extrusion component 31 includes a support rod 311 and an annular stopper 312. The support rod 311 is movably arranged in the through groove 22. One end of the support rod 311 extends to the outside of the extension shaft 2 and is connected to the annular stopper 312. When the extension shaft 2 is located in the journal 12, the outer periphery of the annular stopper 312 is in contact with the inner wall of the accommodating groove 121. The arrangement of the annular stopper 312 in contact with the inner wall can block the oil and prevent the oil from overflowing.

[0041] The oil storage area is located between the annular baffle 312 and the end face of the accommodating groove 121. The oil storage area increases or decreases by moving the support rod 311 in the through groove 22. By pushing the support rod 311, the position of the annular baffle 312 can be changed. The change in the oil storage area depends on the required length of the shaft neck 12 when the cross shaft is connected to the outside.

[0042] In one embodiment, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 There are several oil storage grooves 123 distributed at intervals on the outer periphery of the journal 12, one end of one group of oil storage grooves 123 is connected to the liquid outlet 122, and the oil storage grooves 123 are designed to be concave inward, so when the oil flows out of the liquid outlet 122 into the oil storage grooves 123, the oil storage grooves 123 can collect the oil, thereby delaying the adhesion time of the oil on the outer periphery of the journal 12.

[0043] Several spaced-apart guide grooves 124 are also provided on the outer periphery of the journal 12. The guide grooves 124 are located between two adjacent groups of oil storage grooves 123. Both ends of the guide grooves 124 are respectively connected to the oil storage grooves 123. Since there are several oil storage grooves 123, in order to further optimize the movement path of the oil flowing out of the liquid outlet 122, the guide grooves 124 are provided so that the oil storage groove 123 close to the liquid outlet 122 can transport the oil to the remaining oil storage grooves 123 through the guide grooves 124, so that the lubricating oil can be evenly distributed on the journal 12.

[0044] In one embodiment, referring to Figure 1 、 Figure 4 and Figure 5 The extrusion component 31 further includes an elastic member 32, which is any one of a compression spring, a pressure spring or a torsion spring in the prior art. One end of the elastic member 32 is connected to the extension shaft 2, and the other end is connected to the annular stopper 312;

[0045] The support rod 311 is located inside the elastic member 32. The elastic deformation of the elastic member 32 causes the annular stopper 312 to move closer to or away from the extension shaft 2. The connection between the elastic member 32 and the annular stopper 312 allows the elastic member 32 to be stretched when the support rod 311 is pressed. When the pressure applied to the support rod 311 is released, the elastic member 32 is reset, thereby driving the position of the annular stopper 312 to be reset synchronously.

[0046] In one embodiment, referring to Figure 1-Figure 3 A slot 23 is also provided on the extension shaft 2. The slot 23 is located in one of the adjacent oil storage tanks 123. The slot 23 is used to install planetary gears or other gears connected to the cross shaft, so that the gear can be fastened to the journal 12 position of the cross shaft to ensure that the gear does not undergo relative displacement when running at high speed and bearing torque.

[0047] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position 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, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.

[0048] Those skilled in the art will appreciate that the above embodiments are intended only to clearly illustrate the present application and are not intended to limit the scope of the present application. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present application.

Claims

1. A cross shaft for a vehicle differential, characterized by: The cross shaft comprises a cross shaft body, an extension shaft rod and an oil pressing assembly. The cross shaft body comprises a disc body and a journal. The journals are provided with a plurality of journals and are evenly distributed on the disc body. The journals have a receiving groove. One end of the extension shaft rod is movably provided in the receiving groove. The journals are provided with a liquid outlet hole connected to the receiving groove. The inner wall of the accommodating groove is provided with a thread groove, and the outer periphery of the extension shaft is provided with a convex thread matching the thread groove, and the extension shaft is threadedly connected to the shaft neck through the cooperation of the thread groove and the convex thread; The extension shaft has a through groove, and the oil-pressing assembly is provided with an extrusion component, which is movably arranged in the through groove. When the extension shaft is located in the journal, an oil storage area is formed between the extrusion component and the accommodating groove, and the liquid outlet is located in the oil storage area.

2. The vehicle differential cross shaft according to claim 1, characterized in that: The extrusion component includes a support rod and an annular stop pad, the support rod is movably arranged in the through groove, one end of the support rod extends to the outside of the extension shaft and is connected to the annular stop pad; When the extension shaft is located in the shaft neck, the outer periphery of the annular retaining pad is in contact with the inner wall of the accommodating groove; The oil storage area is located between the annular blocking pad and the end surface of the accommodating groove. The oil storage area increases or decreases by the movement of the support rod in the through groove.

3. The vehicle differential cross shaft according to claim 1, characterized in that: The outer periphery of the journal is provided with a plurality of oil storage grooves distributed at intervals, wherein one end of a group of the oil storage grooves is communicated with the liquid outlet.

4. The vehicle differential cross shaft according to claim 3, characterized in that: A plurality of guide grooves distributed at intervals are also provided on the outer periphery of the journal; The guide groove is located between two adjacent groups of the oil storage grooves, and both ends of the guide groove are respectively communicated with the oil storage grooves.

5. The vehicle differential cross shaft according to claim 2, characterized in that: The extrusion component further includes an elastic member, one end of which is connected to the extension shaft, and the other end of which is connected to the annular stopper; The support rod is located in the elastic member; The elastic member is elastically deformed to move the annular stop pad closer to or farther away from the extension shaft.

6. The vehicle differential cross shaft according to claim 1, characterized in that: The length of the male thread is greater than the length of the thread groove.

7. The vehicle differential cross shaft according to claim 3, characterized in that: The extension shaft is further provided with a notch, and the notch is located in one group of adjacent oil storage tanks.

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