Driving wheel half shaft connecting structure convenient to disassemble and assemble

Abstract

The utility model provides a driving wheel half shaft connecting structure convenient to disassemble and assemble, which relates to the technical field of driving wheel half shaft connection and comprises a main driving shaft, a connecting shaft and an auxiliary driving shaft and further comprises a connecting assembly and a lantern ring installed in the middle of the surface of the connecting shaft in a sleeved mode. The two connecting assemblies are arranged and located at the two ends of the lantern ring respectively, the rotating bevel gear rings on the multiple telescopic arms in the same connecting assembly rotate at the same speed in the same direction, it is guaranteed that inserting blocks on the telescopic arms are connected with the telescopic arms in an inserted mode, and therefore it is guaranteed that the inserting blocks cannot rotate, and lead screws fixed to the inserting blocks cannot rotate either. Therefore, the rotating bevel gear rings installed on all the telescopic arms on the same connecting assembly are utilized to rotate, the screw rod in threaded connection can drive the inserting blocks fixed to the screw rod to move relative to the center shaft of the lantern ring, and all the inserting blocks on the same connecting assembly can enter and exit from the main driving shaft or the auxiliary driving shaft at the same time. And the connecting shaft and the main driving shaft or the auxiliary driving shaft can be quickly disassembled and assembled conveniently.

Description

Technical Field

[0001] This utility model relates to the field of drive wheel half-shaft connection technology, and in particular to a drive wheel half-shaft connection structure that is easy to disassemble and assemble. Background Technology

[0002] The drive wheel half-shaft is the shaft that connects the differential and the drive wheel. It is responsible for transmitting the torque output by the differential to the drive wheel, thereby driving the car forward or backward. When in use, a corresponding connection structure is required to realize the power transmission.

[0003] For example, a drive shaft and shaft connection structure, disclosed in CN220151746U, has a secondary drive shaft on the side of the main drive shaft, and the secondary drive shaft has a cavity inside. A connecting shaft is installed in the cavity, and a shaft rod is fixed on the connecting shaft. A fixing ring one is fixed on the secondary drive shaft, and a crossbar is fixed on the side of the fixing ring one. A fixing ring two is fixed on the main drive shaft, and a through hole is opened on the side of the fixing ring two. The crossbar passes through the through hole. When the secondary drive shaft and the connecting shaft are connected, the crossbar can be pushed to adjust the distance between the secondary drive shaft and the main drive shaft. After the secondary drive shaft is sleeved on the connecting shaft, the first limiting bolt is rotated to lock the crossbar, and the second limiting bolt is rotated to lock the connecting shaft and the secondary drive shaft. Then, the protective cover is rotated to move along the thread line towards the end closer to the fixed plate, so that the protective cover abuts against the fixed plate, thereby protecting the second limiting bolt.

[0004] Existing technology uses several limiting bolts to fix the relative position of the crossbar and the main drive shaft, and uses the fixing ring to fix the auxiliary drive shaft and the fixing ring to fix the relative position of the crossbar to fix the relative position of the main drive shaft and the auxiliary drive shaft. It also uses several limiting bolts to fix the relative position of the connecting shaft and the auxiliary drive shaft. Therefore, when disassembling and assembling the drive wheel half shaft, it is necessary to disassemble multiple limiting bolts and limiting bolts in sequence, which affects the disassembly and assembly speed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a drive wheel half-shaft connection structure that is easy to disassemble and assemble.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a drive wheel half-shaft connection structure that is easy to assemble and disassemble, including a main drive shaft, a connecting shaft, and a secondary drive shaft, and further including a connecting assembly and a collar sleeved and installed at the middle position of the connecting shaft surface:

[0007] The connecting assembly comprises two components, each located at one end of a collar. Each component includes several elastic swing arms arranged in a circular array. One side of each elastic swing arm is hinged to the outer wall of the collar, and a telescopic arm is slidably mounted on the inner arc surface of the elastic swing arm. A plug is inserted into the edge of the inner arc surface of the telescopic arm. One plug on one connecting assembly is used to insert into the outer wall of the main drive shaft, and another plug on the other connecting assembly is used to insert into the outer wall of the auxiliary drive shaft. A lead screw, penetrating the inner arc surface of the telescopic arm, is fixedly connected to the surface of each plug. A rotating bevel gear ring, threadedly connected to the lead screw, is rotatably connected to the outer arc surface of the telescopic arm. The rotating bevel gear rings on the telescopic arms of the same connecting assembly rotate at the same speed and in the same direction. The two connecting assemblies are respectively used to fix the connecting shaft to the main drive shaft and to the auxiliary drive shaft.

[0008] Preferably, a telescopic rod is installed between the elastic swing arm and the outer arc apex of the telescopic arm. The inner movable rod end and the outer cylinder end of the telescopic rod are respectively rotatably connected to the outer arc surfaces of the telescopic arm and the elastic swing arm, and a bevel gear block is installed at the through end. The bevel gear block at the movable rod end of the telescopic rod meshes with the rotating bevel gear ring on the same telescopic arm, and the bevel gear blocks at the cylinder ends of the telescopic rod rotate at the same speed.

[0009] Preferably, an internal threaded ring is threadedly connected to the surface of the collar near any connecting component. One end of the internal threaded ring is fixedly connected to a limiting ring for forcing the elastic swing arm to be coaxially arranged with the collar. A connecting bevel gear ring that meshes with the bevel gear block at the end of the cylinder of the elastic swing arm on the same connecting component is rotatably connected to the outside of the limiting ring.

[0010] Preferably, an adjusting screw is rotatably connected to the middle position of the arc apex of the outer arc surface of the elastic swing arm, and the middle position of the arc apex of the outer arc surface of the elastic swing arm is hollowed out. One side of the arc apex of the outer arc surface of the telescopic arm extends outward through the hollowed-out part of the elastic swing arm and is threadedly connected to the surface of the adjusting screw. One end of the adjusting screw passes through the elastic swing arm and is also fixedly installed with a bevel gear block.

[0011] Preferably, the outer arc surface of the elastic swing arm is also rotatably connected to a connecting bevel gear ring, and the connecting bevel gear ring on the elastic swing arm is meshed with the bevel gear block on the adjusting screw.

[0012] Preferably, an anti-slip bevel gear ring is rotatably connected to the outer wall of the collar near the middle position, and a rotating bevel gear ring is also rotatably connected to the middle position of the outer side of the collar. Several rotating bevel gear rings on the collar are meshed with the anti-slip bevel gear rings and are also threaded with a lead screw inside. The lead screw on the collar is used to insert into the outer wall of the connecting shaft.

[0013] Preferably, the end of the lead screw on the collar is fixedly installed with a guide member inserted into the outer wall of the collar, and the outer wall of the collar is fitted with a retaining ring for inserting into a plurality of guide members, and a plurality of spring rods are provided between the outer side of the retaining ring and the outer wall of the collar.

[0014] Preferably, the retaining ring and the collar are coaxially arranged and inserted into the outer wall of the collar.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the rotating bevel gear rings on several telescopic arms in the same connecting assembly rotate at the same speed and in the same direction. Moreover, the insertion of the plug on the telescopic arm and the telescopic arm ensures that the plug will not rotate. Therefore, the screw fixed to the plug will not rotate. Thus, by rotating the rotating bevel gear rings installed on all the telescopic arms in the same connecting assembly, the screw connected to the thread can drive the plug fixed to it to move relative to the central axis of the collar. This allows all the plugs on the same connecting assembly to simultaneously enter and exit the main drive shaft or the auxiliary drive shaft, facilitating the quick assembly and disassembly of the connecting shaft from the main drive shaft or the auxiliary drive shaft.

[0017] 2. In this utility model, by rotating the combined connecting bevel gear ring, the meshing bevel gear block can drive the corresponding adjusting screw to rotate, which can realize the movement of the threaded telescopic arm relative to the elastic swing arm, and can realize the simultaneous extension and retraction of all telescopic arms in the same connecting assembly. This facilitates the adjustment of the position of the insert block on the same connecting assembly according to the position of the connecting shaft between the main drive shaft and the auxiliary drive shaft. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a drive wheel half-shaft connection structure that is easy to disassemble and assemble is provided for this utility model;

[0019] Figure 2 This utility model provides a structural diagram of a drive wheel half-shaft connection assembly that is easy to assemble and disassemble;

[0020] Figure 3 This utility model proposes a drive wheel half-shaft connection structure that is easy to assemble and disassemble. Figure 2 A schematic diagram of the cross-sectional structure;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0023] Figure 6 for Figure 3 Enlarged view of point C in the middle.

[0024] Legend: 1. Main drive shaft; 2. Collar; 3. Secondary drive shaft; 4. Anti-slip bevel gear ring; 5. Rotating bevel gear ring; 6. Guide component; 7. Lead screw; 8. Snap ring; 9. Spring rod; 10. Internal threaded ring; 11. Telescopic arm; 12. Elastic swing arm; 13. Adjusting screw; 14. Telescopic rod; 15. Insert block; 16. Connecting shaft; 17. Bevel gear block; 18. Restricting ring; 19. Connecting bevel gear ring. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figure 1 - Figure 6 As shown, a drive wheel half-shaft connection structure that is easy to assemble and disassemble includes a main drive shaft 1, a connecting shaft 16, and a secondary drive shaft 3, and also includes a connecting assembly and a collar 2 sleeved and installed at the middle position of the surface of the connecting shaft 16.

[0028] The connecting assembly has two components, located at both ends of the collar 2. Each component includes several elastic swing arms 12 arranged in a circular array about the central axis of the collar 2. One side of each elastic swing arm 12 is hinged to the outer wall of the collar 2, and a telescopic arm 11 is slidably mounted on its inner arc surface. A retaining spring is installed at the hinge point of the elastic swing arm 12, ensuring that the elastic swing arm 12 is perpendicular to the central axis of the collar 2 when no external force is applied. This allows for easy removal of the connecting shaft 16 when the main drive shaft 1 and the auxiliary drive shaft 3 are fixed in position. A plug 15 is inserted into the inner arc edge of the telescopic arm 11. One plug 15 on the connecting assembly is used to insert into the outer wall of the main drive shaft 1, and the other plug 15 on the connecting assembly is used to insert into the auxiliary drive shaft 3. The drive shaft 3 is inserted into the outer wall. The insert block 15 is fixedly connected to a lead screw 7 that passes through the inner arc surface of the telescopic arm 11. The outer arc surface of the telescopic arm 11 is rotatably connected to a rotating bevel ring 5 that is threadedly connected to the lead screw 7. The rotating bevel rings 5 ​​on several telescopic arms 11 in the same connecting assembly rotate at the same speed and in the same direction. The insertion of the insert block 15 and the telescopic arm 11 here ensures that the insert block 15 will not rotate. Therefore, the lead screw 7 fixed to the insert block 15 will not rotate. Therefore, by rotating the rotating bevel ring 5 installed on the telescopic arm 11, the threaded lead screw 7 can drive the insert block 15 fixed to it to move relative to the central axis of the collar 2. This allows the insert block 15 to enter and exit the main drive shaft 1 or the auxiliary drive shaft 3. The two connecting assemblies are used to fix the connecting shaft 16 to the main drive shaft 1 and to the auxiliary drive shaft 3, respectively.

[0029] Furthermore, a telescopic rod 14 is installed between the outer arc apex of the elastic swing arm 12 and the telescopic arm 11. The inner movable rod end and the outer cylinder end of the telescopic rod 14 are respectively rotatably connected to the outer arc surfaces of the telescopic arm 11 and the elastic swing arm 12, and a bevel gear block 17 is installed at the through end. The bevel gear block 17 at the movable rod end of the telescopic rod 14 meshes with the rotating bevel gear ring 5 on the same telescopic arm 11. The bevel gear blocks 17 at the cylinder ends of several telescopic rods 14 rotate at the same speed. In actual use, according to the distance of the connecting shaft 16 between the main drive shaft 1 and the auxiliary drive shaft 3, the corresponding insertion block 15 in the connecting assembly is positioned at the insertion position on the main drive shaft 1 and the auxiliary drive shaft 3. The distance will change, so the position of the insert block 15 on the telescopic arm 11 can be adjusted by sliding the telescopic arm 11 relative to the elastic swing arm 12 and along the central axis of the collar 2. When the telescopic arm 11 slides relative to the elastic swing arm 12, the corresponding telescopic rod 14 will slide. As shown in the figure, since the telescopic rod 14 is rectangular, it can only slide relative to the telescopic arm 11 and cannot rotate relative to it. Therefore, when the bevel gear block 17 at the cylinder end of the telescopic rod 14 rotates at the same speed, the bevel gear block 17 at the end of the movable rod inside the telescopic rod 14 will rotate under the driving action of the telescopic rod 14, thereby realizing the rotation of the rotating bevel gear ring 5 on the same telescopic arm 11 that is correspondingly meshed.

[0030] Furthermore, an internal threaded ring 10 is threadedly connected to the surface of the collar 2 near any connecting component. One end of the internal threaded ring 10 is fixedly connected to a limiting ring 18 for forcing the elastic swing arm 12 to be coaxially arranged with the collar 2. The outer side of the limiting ring 18 is rotatably connected to a connecting bevel gear ring 19 that meshes with the bevel gear block 17 at the cylinder end of the elastic swing arm 12 on the same connecting component. By rotating the internal threaded ring 10, the internal threaded ring 10 moves closer to the connecting component. The inner wall of the limiting ring 18 slides into the outer arc surface of several elastic swing arms 12. Therefore, when the internal threaded ring 10 drives the limiting ring 18 to move towards the end of the collar 2, the limiting ring 18 will force the elastic swing arm 12 to swing until its central axis coincides with the central axis of the collar 2. At this time, the connecting bevel gear ring 19 on the limiting ring 18 meshes with the bevel gear block 17 at the cylinder end of the elastic swing arm 12. Therefore, by rotating the connecting bevel gear ring 19 on the limiting ring 18, the insert block 15 on the telescopic arm 11 within the same connecting component can be synchronously extended and retracted, which facilitates faster disassembly and assembly.

[0031] Furthermore, an adjusting screw 13 is rotatably connected to the middle of the arc apex of the outer arc surface of the elastic swing arm 12, and the middle of the arc apex of the outer arc surface of the elastic swing arm 12 is hollowed out. One side of the arc apex of the outer arc surface of the telescopic arm 11 extends outward through the hollowed-out area of ​​the elastic swing arm 12 and is threadedly connected to the surface of the adjusting screw 13. One end of the adjusting screw 13 passes through the elastic swing arm 12 and is also fixedly mounted with a bevel gear block 17. A connecting bevel gear ring 19 is also rotatably connected to the outer arc surface of the elastic swing arm 12, and the connecting bevel gear ring 19 on the elastic swing arm 12 meshes with the bevel gear block 17 on the adjusting screw 13. In this scheme, the connecting bevel gear rings 19 can be segmented, ensuring that the elastic swing arms 12 can rotate smoothly to a vertical position. After the central axis coincides with the central axis of the collar 2, the segmented connecting bevel gear rings 19 are recombined into a complete ring. Therefore, by rotating the combined connecting bevel gear rings 19, the meshing bevel gear block 17 can drive the corresponding adjusting screw 13 to rotate, thereby enabling the threaded telescopic arm 11 to move relative to the elastic swing arm 12, and thus enabling all telescopic arms 11 in the same connecting assembly to extend and retract simultaneously.

[0032] Furthermore, an anti-slip bevel ring 4 is rotatably connected to the outer wall of the collar 2 near the middle position, and a rotating bevel ring 5 is also rotatably connected to the middle position of the outer side of the collar 2. Several rotating bevel rings 5 ​​on the collar 2 are engaged with the anti-slip bevel rings 4 and are also internally threaded with a lead screw 7. The lead screw 7 on the collar 2 is used to insert into the outer wall of the connecting shaft 16. A guide 6 inserted into the outer wall of the collar 2 is fixedly installed at the end of the lead screw 7 on the collar 2. A retaining ring 8 is sleeved on the outer wall of the collar 2 for inserting into several guide 6. Several spring rods 9 are provided between the outer side of the retaining ring 8 and the outer wall of the collar 2. The retaining ring 8 is coaxially arranged with the collar 2 and inserted into the outer wall of the collar 2. (Refer to...) Figure 4One of the lead screws 7 located on the telescopic arm 11 is also equipped with a guide 6 and a corresponding spring rod 9. The difference is that the telescopic end of the spring rod 9 on the telescopic arm 11 is directly engaged with the surface of the guide 6, thus fixing the position of the guide 6 and the corresponding insert block 15 on the telescopic arm 11. Figure 6 The telescopic end of the spring rod 9 set on the collar 2 pushes the retaining ring 8 to insert into the ends of several guide members 6, thereby fixing the relative position of the guide members 6 and the outer wall of the collar 2, thus ensuring that the lead screw 7 on the collar 2 and the outer wall of the connecting shaft 16 are always in an inserted state. In addition, the guide members 6 can also be connected to the rotating bevel ring 5 by rotating the anti-slip bevel ring 4 when the retaining ring 8 and the guide members 6 are not in contact. This allows the lead screw 7, which is threadedly connected to the rotating bevel ring 5, to rise and fall relative to the central axis of the connecting shaft 16 under the restriction of the guide members 6 as the rotating bevel ring 5 rotates, thus allowing the lead screw 7 on the collar 2 to enter and exit the connecting shaft 16.

[0033] Working principle: In the initial state, the collar 2 is fixed on the connecting shaft 16. The elastic swing arm 12 is set perpendicular to the central axis of the connecting shaft 16 under the torque of the snap ring. The connecting shaft 16 is placed between the main drive shaft 1 and the auxiliary drive shaft 3. The internal thread ring 10 is rotated to move the internal thread ring 10 closer to the connecting assembly. The set limiting ring 18 forces the elastic swing arm 12 to swing until its central axis coincides with the central axis of the collar 2. After the central axis coincides with the central axis of the collar 2, the segmented connecting bevel rings 19 are reassembled into a complete ring. Therefore, by rotating the combined connecting bevel ring 19, under the transmission action of the corresponding position adjusting screw 13, the inserts 15 on the telescopic arm 11 in the same connecting assembly can be synchronously extended and retracted to align with the insertion position on the main drive shaft 1 or the auxiliary drive shaft 3. By rotating the connecting bevel ring 19 on the limiting ring 18, the inserts 15 on the telescopic arm 11 in the same connecting assembly can be synchronously extended and retracted, so that all the inserts 15 in the same connecting assembly can simultaneously enter and exit the corresponding main drive shaft 1 or the auxiliary drive shaft 3.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0035] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drive wheel half-shaft connection structure that is easy to assemble and disassemble, comprising a main drive shaft (1), a connecting shaft (16), and a secondary drive shaft (3), characterized in that: It also includes a connecting assembly and a collar (2) fitted and mounted on the middle of the surface of the connecting shaft (16): The connecting components are provided in two parts, located at both ends of the collar (2). Each connecting component includes several elastic swing arms (12) arranged in a circular array. One side of each elastic swing arm (12) is hinged to the outer wall of the collar (2), and a telescopic arm (11) is slidably mounted on the inner arc surface of the elastic swing arm (12). A plug (15) is inserted into the edge of the inner arc surface of the telescopic arm (11). One plug (15) on the connecting component is used to insert into the outer wall of the main drive shaft (1), and the other plug (15) on the connecting component... For insertion into the outer wall of the auxiliary drive shaft (3), the insert (15) is fixedly connected to a lead screw (7) that penetrates the inner arc surface of the telescopic arm (11), and the outer arc surface of the telescopic arm (11) is rotatably connected to a rotating bevel ring (5) that is threadedly connected to the lead screw (7). The rotating bevel rings (5) on several telescopic arms (11) in the same connecting assembly rotate at the same speed and in the same direction. The two connecting assemblies are respectively used to fix the connecting shaft (16) and the main drive shaft (1) and to fix the connecting shaft (16) and the auxiliary drive shaft (3).

2. The easily detachable drive wheel half-shaft connection structure according to claim 1, characterized in that: A telescopic rod (14) is installed between the outer arc surface apex of the elastic swing arm (12) and the telescopic arm (11). The inner movable rod end and the outer cylinder end of the telescopic rod (14) are respectively rotatably connected to the outer arc surface of the telescopic arm (11) and the elastic swing arm (12), and a bevel gear block (17) is installed at the through end. The bevel gear block (17) at the movable rod end of the telescopic rod (14) meshes with the rotating bevel gear ring (5) on the same telescopic arm (11), and the bevel gear blocks (17) at the cylinder ends of several telescopic rods (14) rotate at the same speed.

3. The easily detachable drive wheel half-shaft connection structure according to claim 1, characterized in that: The collar (2) is threaded with an internal threaded ring (10) near any connecting component. One end of the internal threaded ring (10) is fixedly connected to a limiting ring (18) for forcing the elastic swing arm (12) to be coaxially arranged with the collar (2). The outer side of the limiting ring (18) is rotatably connected to a connecting bevel gear ring (19) that meshes with the bevel gear block (17) at the cylinder end of the elastic swing arm (12) on the same connecting component.

4. The easily detachable drive wheel half-shaft connection structure according to claim 1, characterized in that: The elastic swing arm (12) has an adjusting screw (13) rotatably connected at the middle of the arc top of its outer arc surface, and the middle of the arc top of its outer arc surface is hollowed out. The telescopic arm (11) extends outward from one side of the arc top of its outer arc surface, passes through the hollowed-out part of the elastic swing arm (12), and is threadedly connected to the surface of the adjusting screw (13). One end of the adjusting screw (13) passes through the elastic swing arm (12) and is also fixedly installed with a bevel gear block (17).

5. The easily detachable drive wheel half-shaft connection structure according to claim 4, characterized in that: The outer arc surface of the elastic swing arm (12) is also rotatably connected to a connecting bevel gear ring (19), and the connecting bevel gear ring (19) on the elastic swing arm (12) is meshed with the bevel gear block (17) on the adjusting screw (13).

6. The easily detachable drive wheel half-shaft connection structure according to claim 1, characterized in that: The outer wall of the collar (2) is rotatably connected to an anti-slip bevel ring (4) near the middle position. The outer side of the collar (2) is also rotatably connected to a rotating bevel ring (5). Several rotating bevel rings (5) on the collar (2) are meshed with the anti-slip bevel rings (4) and are also threaded with a lead screw (7) inside. The lead screw (7) on the collar (2) is used to insert into the outer wall of the connecting shaft (16).

7. The easily detachable drive wheel half-shaft connection structure according to claim 6, characterized in that: The end of the lead screw (7) on the collar (2) is fixedly installed with a guide (6) inserted into the outer wall of the collar (2). The outer wall of the collar (2) is fitted with a retaining ring (8) for inserting into several guides (6). Several spring rods (9) are provided between the outer side of the retaining ring (8) and the outer wall of the collar (2).

8. The easily detachable drive wheel half-shaft connection structure according to claim 7, characterized in that: The retaining ring (8) is coaxially arranged with the collar (2) and inserted into the outer wall of the collar (2).

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