Soft shaft assembly and vehicle

Abstract

The utility model relates to the field of vehicle, especially a kind of soft shaft assembly and vehicle.It is the soft shaft assembly including core wire and adjusting component, wherein core wire is used to be connected with operator end ball head;Adjusting component is used to connect core wire and transmission end shift ball head, adjusting component can make transmission end shift ball head rotate relative to core wire and can move along axial direction with core wire.When assembling, when transmission end shift ball head needs to be rotated, transmission end shift ball head can be directly rotated, transmission end shift ball head rotates relative to operator end ball head, and then the angle requirement of transmission end shift ball head when assembling can be met, without twisting core wire, the rotation of transmission end shift ball head can be realized, so the performance and service life of core wire can be improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and in particular to a flexible shaft assembly and a vehicle. Background Technology

[0002] Most of the manual transmission vehicles currently in production use a flexible shaft control system. In actual vehicle assembly, difficulties in overall vehicle space layout and poor assembly consistency result in inconsistent ball joint angles at the rear flexible shaft connecting to the transmission shift arm. Forcibly twisting the rear flexible shaft during assembly will cause adverse effects such as decreased performance and reduced lifespan.

[0003] Therefore, there is an urgent need for a flexible shaft assembly to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a flexible shaft assembly and vehicle that can rotate according to assembly requirements, thereby improving the service life of the flexible shaft.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, a flexible shaft assembly is provided, comprising:

[0007] Core wire, the core wire being used to connect to the ball head of the operator end;

[0008] An adjustment assembly is used to connect the core wire and the gearbox end shift ball joint. The adjustment assembly enables the gearbox end shift ball joint to rotate relative to the core wire and to move axially with the core wire.

[0009] As an optional technical solution for the above-mentioned flexible shaft assembly, the adjustment component includes:

[0010] A shift lever, which is fixedly connected to the shift ball joint at the transmission end;

[0011] The housing has one end fixedly connected to the ball joint of the operator, the shift lever is located inside the housing, the other part of the shift lever is located outside the housing, and the shift lever can rotate relative to the housing.

[0012] A clamping member is located inside the housing. One end of the clamping member abuts against the inner wall of the housing, and the other end of the clamping member abuts against the portion of the shift lever located inside the housing. The clamping member and the shift lever are coaxially arranged, and the clamping member has a tendency to push the shift lever against the housing.

[0013] As an optional technical solution for the aforementioned flexible shaft assembly, the clamping component includes a push rod spring.

[0014] As an optional technical solution for the above-mentioned flexible shaft assembly, the housing includes a housing body and a plug. The housing body has an opening at one end facing the ball end of the operator. The plug is disposed at the opening of the housing body and is fixedly connected to the housing body. The plug is fixedly connected to the ball end of the operator. A portion of the shift lever and the clamping member are located within the area enclosed by the housing body.

[0015] As an optional technical solution for the above-mentioned flexible shaft assembly, an oil hole is provided on the side wall of the housing body, the oil hole is connected to the area enclosed by the housing body, and the shift lever is located on the outer peripheral wall of the housing body and fits against the inner peripheral wall of the housing body.

[0016] As an optional technical solution for the aforementioned flexible shaft assembly, the shift lever includes a piston portion and a connecting portion, wherein the piston portion is located inside the housing body, and one end of the connecting portion is located outside the housing body.

[0017] As an optional technical solution for the above-mentioned flexible shaft assembly, the adjustment component further includes a first dust cover, which is disposed on the end of the housing body away from the blockage. The inner sidewall of the first dust cover has an oil guide groove, which communicates with the oil hole.

[0018] As an optional technical solution for the above-mentioned flexible shaft assembly, the flexible shaft assembly further includes a second dust cover, the adjustment component is located inside the second dust cover, and the gear shift ball head portion of the transmission end is located inside the second dust cover and is fixedly connected to the shift push rod.

[0019] As an optional technical solution for the above-mentioned flexible shaft assembly, the flexible shaft assembly further includes a covering layer, and the core wire is covered by the covering layer.

[0020] Secondly, a vehicle is provided, including the aforementioned flexible shaft assembly.

[0021] The above technical solution has at least the following advantages or beneficial effects:

[0022] The flexible shaft assembly and vehicle provided by this utility model include an adjustment component. The adjustment component enables the shift ball joint at the transmission end to rotate relative to the ball joint at the operator end and move axially with the core wire. Thus, when it is necessary to rotate the shift ball joint at the transmission end during assembly, the shift ball joint at the transmission end can be rotated directly relative to the ball joint at the operator end, thereby meeting the angle requirements of the shift ball joint at the transmission end during assembly. The rotation of the shift ball joint at the transmission end can be achieved without twisting the core wire, which can improve the performance and service life of the core wire. Attached Figure Description

[0023] Figure 1A front view of the flexible shaft assembly provided in an embodiment of this utility model;

[0024] Figure 2 for Figure 1 A partial sectional view at point A in the middle;

[0025] Figure 3 A schematic diagram of the blockage structure provided in an embodiment of this utility model;

[0026] Figure 4 A schematic diagram of the shell structure provided for an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the shift lever provided in an embodiment of the present utility model;

[0028] Figure 6 A first-view structural schematic diagram of the first dust cover provided in an embodiment of this utility model;

[0029] Figure 7 A second-view structural schematic diagram of the first dust cover provided in an embodiment of this utility model.

[0030] In the picture:

[0031] 1. Core wire; 2. Adjustment assembly; 21. Shift lever; 211. Piston part; 212. Connecting part; 22. Clamping part; 23. Housing body; 231. Oil hole; 24. Plug; 25. First dust cover; 3. Second dust cover; 4. Covering layer; 5. Protective tube; 10. Operator end ball joint; 20. Gearbox end shift ball joint. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] The gear selection and shifting mechanism connects the control lever and the transmission push rod via a flexible shaft, transmitting the operation of the control lever to the transmission push rod to achieve gear selection and shifting. The flexible shaft is typically made of steel wire rope. Due to the constraints of vehicle space layout, the flexible shaft may be subjected to torsional assembly during assembly. Prolonged exposure to torsional forces can affect the operability of gear selection and shifting; moreover, the flexible shaft is also prone to breakage and failure due to torsional forces.

[0037] like Figure 1As shown, the flexible shaft assembly includes a core wire 1 and an adjustment assembly 2, wherein the core wire 1 is used to connect to the ball joint 10 at the operator end; the adjustment assembly 2 is used to connect the core wire 1 and the shift ball joint 20 at the transmission end, and the adjustment assembly 2 enables the shift ball joint 20 at the transmission end to rotate relative to the core wire 1 and to move axially with the core wire 1.

[0038] The flexible shaft assembly includes an adjustment component 2, which enables the shift ball joint 20 at the gearbox end to rotate relative to the ball joint 10 at the operator end and move axially with the core wire 1. Thus, when it is necessary to rotate the shift ball joint 20 at the gearbox end during assembly, the shift ball joint 20 at the gearbox end can be rotated directly relative to the ball joint 10 at the operator end, thereby meeting the angle requirements of the shift ball joint 20 at the gearbox end during assembly. The rotation of the shift ball joint 20 at the gearbox end can be achieved without twisting the core wire 1, which can improve the performance and service life of the core wire 1.

[0039] The adjustment component 2 provided by this utility model is arranged between the core wire 1 and the shift ball head 20 at the gearbox end, which will not affect the external shape and structure of the flexible shaft assembly and ensure the interchangeability of the parts.

[0040] The mandrel is fitted with a protective tube 5, which protects the mandrel.

[0041] like Figure 2 As shown, the adjustment assembly 2 includes a shift lever 21, a housing, and a clamping member 22. The shift lever 21 is fixedly connected to the shift ball joint 20 at the transmission end. One end of the housing is fixedly connected to the ball joint 10 at the operator end. Part of the shift lever 21 is located inside the housing, and the other part of the shift lever 21 is located outside the housing. The shift lever 21 can rotate relative to the housing. The clamping member 22 is located inside the housing. One end of the clamping member 22 abuts against the inner wall of the housing, and the other end of the clamping member 22 abuts against the part of the shift lever 21 located inside the housing. The clamping member 22 is coaxially arranged with the shift lever 21, and the clamping member 22 has a tendency to push the shift lever 21 against the housing.

[0042] Since the shift push rod 21 is fixedly connected to the shift ball joint 20 at the transmission end, the shift push rod 21 can rotate relative to the housing. Thus, the shift ball joint 20 at the transmission end can also rotate relative to the housing. The clamping member 22 tends to push the shift push rod 21 against the housing. Under the action of the clamping member 22, the shift push rod 21 always transmits axial tension to the ball joint 10 at the operator end. This ensures that the core wire 1 can apply the tension it receives to the shift ball joint 20 at the transmission end during shifting, thereby transmitting gear information to the shift ball joint 20. During assembly, the core wire 1 has a better spatial arrangement within the vehicle, which can eliminate internal stress in the core wire 1, extending its service life. It also makes assembly in the workshop more convenient.

[0043] For example, the clamping element 22 includes a push rod spring, which is compressed within the housing. For example, the push rod spring is made of carbon spring steel wire with a wire diameter of 3.5mm, a spring mean diameter of 10mm, an original length of 25mm, and an effective number of coils of 4. The push rod spring is installed within the lubrication chamber, serving to support and adjust the ball joint angle. The push rod spring twists under the rotation of the shift ball joint 20 at the transmission end. After the shift ball joint 20 completes its twisting, the push rod spring returns to its initial state under the action of the torsional force. Thus, compared to the torsion of the core wire 1 in the prior art, the push rod spring self-recovers upon twisting, which does not affect its performance or lifespan.

[0044] like Figures 2 to 4 As shown, specifically, the housing includes a housing body 23 and a plug 24. The housing body 23 has an opening at one end facing the ball head 10 of the operator end. The plug 24 is disposed at the opening of the housing body 23 and is fixedly connected to the housing body 23. The plug 24 is fixedly connected to the ball head 10 of the operator end. A portion of the shift lever 21 and the clamping member 22 are located within the area enclosed by the housing body 23.

[0045] The housing has a split structure, which facilitates the assembly of the shift lever 21 and the housing. During installation, the shift lever 21 is first inserted into the housing body 23, and then the end of the shift lever 21 connected to the shift ball joint 20 at the transmission end passes through the housing body 23. Then, the clamping member 22 is inserted into the housing body 23, and the plug 24 is installed at the opening of the housing body 23. The shift lever 21 and the plug 24 press against both ends of the clamping member 22, thereby putting the clamping member 22 in a compressed state. This ensures that the clamping member 22 always tends to press against the housing, but the clamping member 22 also has a compression margin to ensure that the shift lever 21 can perform secondary compression on the clamping member 22, allowing the shift lever 21 to move axially relative to the housing, so that the shift lever 21 can rotate relative to the housing.

[0046] In some embodiments, an oil hole 231 is provided on the side wall of the housing body 23, and the oil hole 231 communicates with the area enclosed by the housing body 23. The outer peripheral wall of the portion of the shift lever 21 located in the housing body 23 is in contact with the inner peripheral wall of the housing body 23. The oil hole 231 is used to guide oil into the housing, thereby providing lubrication for the shift lever 21, so that the shift lever 21 can move axially relative to the housing. In addition, after the housing is filled with oil, the oil and the clamping member 22 cooperate to apply a thrust to the shift lever 21, so that the shift lever 21 is always in close contact with the housing, thereby increasing the friction between the shift lever 21 and the housing, so that the shift lever 21 is less likely to rotate relative to the housing. When the shift lever 21 is moved axially, the oil in the housing flows out from the oil hole 231 to ensure that the shift lever 21 can move axially relative to the housing. The housing body 23 is filled with oil, making operation easier and less likely to cause damage to internal components.

[0047] The shell body 23 is made of cold-drawn steel pipe. The rear end of the shell body 23 has an M16mm*2mm internal thread with a thread hole depth of 23mm. The rear end of the shell body 23 is screwed to the plug 24. At the same time, a push rod spring is installed inside the shell body 23. The front end of the shell body 23 is limited by the push rod installation. It mainly serves to connect the front and rear parts and store lubricating oil.

[0048] The plug 24 is made of 45 steel and has an M8*1.25 threaded hole at the bottom (unit: mm) with a depth of 12 mm, used to connect the core wire 1. The front end has an M16*2 coarse thread (unit: mm), used to connect to the lubricating oil cavity, serving to support the push rod spring and limit its movement.

[0049] like Figure 5 As shown, in some embodiments, the shift lever 21 includes a piston portion 211 and a connecting portion 212. The piston portion 211 is located inside the housing body 23, and one end of the connecting portion 212 is located outside the housing body 23. The other end of the connecting portion 212 is fixedly connected to the piston portion 211. The piston portion 211 fits against the inner peripheral wall of the housing body 23 to achieve a seal and prevent oil from leaking from between the piston portion 211 and the housing body 23 into the shift ball joint 20 at the transmission end. It can be understood that the cooperation between the piston portion 211 and the housing body 23 is similar to that of a piston cylinder; the specific connection method will not be described in detail.

[0050] Specifically, the shift ball joint 20 at the transmission end is threadedly connected to the shift push rod 21, the shift push rod 21 has external threads, and the shift ball joint 20 at the transmission end has internal threads.

[0051] A sealing ring is provided on the outer peripheral wall of the piston part 211. Specifically, a sealing groove is provided on the outer peripheral wall of the piston part 211, and the sealing ring is located in the sealing groove to be fixed relative to the piston part 211. When the piston part 211 moves, the sealing ring can always be on the piston part 211 and will not move relative to the piston part 211, thus ensuring the sealing effect between the piston part 211 and the outer shell.

[0052] The shift push rod 21 is made of No. 20 steel and has an M8*1.25 coarse thread with a thread length of 12mm. It is used to connect to the shift ball joint 20 at the transmission end and transmit the thrust of the shift push rod 21 and the core wire 1 to the shift ball joint 20 at the transmission end, thereby completing the shifting action at the transmission end. At the same time, the shift push rod 21 has an oil guide groove structure, which gives the structure good lubrication performance and reduces internal resistance.

[0053] like Figure 6 and Figure 7 As shown, in some embodiments, the adjusting assembly 2 further includes a first dust cover 25, which covers the end of the housing body 23 opposite to the plug 24. The inner wall of the first dust cover 25 has an oil guide groove, which communicates with the oil hole 231. The first dust cover 25 can seal the end of the housing facing the shift ball joint 20 at the transmission end, thereby preventing oil from leaking from the end of the housing into the shift ball joint 20 at the transmission end.

[0054] The first dust cover 25 is made of rubber material, specifically EPDM, and covers the outside of the housing. The second dust cover 3 is used to seal and prevent dust from entering the entire regulating assembly 2, and also has an internal oil guide groove structure to facilitate the flow of internal lubricating oil.

[0055] Continue to refer to Figure 1 and Figure 2 In some embodiments, the flexible shaft assembly further includes a second dust cover 3, with the adjustment component 2 located inside the second dust cover 3. The shift ball joint 20 at the transmission end is located inside the second dust cover 3 and is fixedly connected to the shift push rod 21. The second dust cover 3 can protect the adjustment component 2 from dust, preventing dust from adhering to the adjustment component 2 and coming into contact with the oil on the outside of the adjustment component 2 and sticking to the outside of the adjustment component 2.

[0056] In some embodiments, the flexible shaft assembly further includes a sheathing layer 4, which covers the core wire 1. The sheathing layer 4 protects the core wire 1 from wear.

[0057] The use of a flexible shaft assembly results in better spatial arrangement of the core wire 1 within the overall vehicle layout during assembly, which can eliminate internal stress of the core wire 1, extend its service life, and make workshop assembly more convenient. The use of oil filling inside the housing makes operation easier and less likely to cause damage to internal components. The shape and appearance of the flexible shaft assembly are consistent with the existing structure, making it highly versatile and applicable to a wider range of applications.

[0058] When the flexible shaft assembly comes off the production line, lubricating oil needs to be injected through the oil hole 231 of the housing body 23 and sealed with the first dust cover 25. During assembly on the vehicle assembly line, one end of the gear shifter needs to be fixed first, and the core wire 1 is bundled and assembled according to the design layout. When the shift ball joint 20 at the gearbox end is finally connected to the gearbox end, the angle of the shift ball joint 20 at the gearbox end is adjusted using this flexible shaft assembly. Slightly press the ball joint forward to compress the internal push rod spring, at which point the shift ball joint 20 at the gearbox end can rotate freely. After adjusting the angle of the shift ball joint 20 at the gearbox end to be perpendicular to the mounting plane, the force is withdrawn, and the internal compression spring returns to its original position, allowing assembly to continue. This ensures that the shift ball joint 20 at the gearbox end is in the optimal design state, guaranteeing the service life of the core wire 1 and the tightening torque of the ball joint bolt.

[0059] This embodiment also provides a vehicle that includes the flexible shaft assembly provided in the above embodiments.

[0060] Since the vehicle includes a flexible shaft assembly, which includes an adjustment component 2, the adjustment component 2 enables the shift ball joint 20 at the transmission end to rotate relative to the ball joint 10 at the operator end and to move axially with the core wire 1. Thus, when it is necessary to rotate the shift ball joint 20 at the transmission end during assembly, the shift ball joint 20 at the transmission end can be rotated directly relative to the ball joint 10 at the operator end, thereby meeting the angle requirements of the shift ball joint 20 at the transmission end during assembly. The rotation of the shift ball joint 20 at the transmission end can be achieved without twisting the core wire 1, which improves the performance and service life of the core wire 1.

[0061] Since the vehicle of this utility model embodiment includes the above-described flexible shaft assembly, it has all the advantages and beneficial effects of the above-described embodiments, which will not be repeated here.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A soft shaft assembly characterized by, include: Core wire (1), the core wire (1) is used to connect to the ball head (10) of the operator end; An adjustment assembly (2) is used to connect the core wire (1) and the gearbox end shift ball (20). The adjustment assembly (2) enables the gearbox end shift ball (20) to rotate relative to the core wire (1) and to move axially with the core wire (1).

2. The soft shaft assembly of claim 1, wherein, The adjustment component (2) includes: A shift lever (21) is fixedly connected to the shift ball joint (20) at the transmission end; The housing has one end fixedly connected to the ball head (10) of the operator end, the shift lever (21) is located inside the housing, the other part of the shift lever (21) is located outside the housing, and the shift lever (21) can rotate relative to the housing; A clamping member (22) is located inside the housing. One end of the clamping member (22) abuts against the inner wall of the housing, and the other end of the clamping member (22) abuts against the portion of the shift lever (21) located inside the housing. The clamping member (22) and the shift lever (21) are coaxially arranged, and the clamping member (22) has a tendency to push the shift lever (21) against the housing.

3. The soft shaft assembly of claim 2, wherein, The clamping element (22) includes a push rod spring.

4. The soft shaft assembly of claim 2, wherein, The housing includes a housing body (23) and a plug (24). The housing body (23) has an opening at one end facing the ball head (10) of the operator. The plug (24) is disposed at the opening of the housing body (23) and is fixedly connected to the housing body (23). The plug (24) is fixedly connected to the ball head (10) of the operator. A portion of the shift lever (21) and the clamping member (22) are located within the area enclosed by the housing body (23).

5. The soft shaft assembly of claim 4, wherein, The side wall of the shell body (23) is provided with an oil hole (231), the oil hole (231) is connected to the area enclosed by the shell body (23), and the shift push rod (21) is located on the outer peripheral wall of the part of the shell body (23) and fits against the inner peripheral wall of the shell body (23).

6. The soft shaft assembly of claim 4 or 5, wherein, The shift lever (21) includes a piston part (211) and a connecting part (212). The piston part (211) is located inside the housing body (23), and one end of the connecting part (212) is located outside the housing body (23).

7. The soft shaft assembly of claim 5, wherein, The adjustment component (2) further includes a first dust cover (25), which covers the end of the shell body (23) away from the blockage (24). The inner sidewall of the first dust cover (25) has an oil guide groove, which is connected to the oil hole (231).

8. The flexible shaft assembly of any of claims 2-5, wherein, The flexible shaft assembly also includes a second dust cover (3), the adjustment component (2) is located inside the second dust cover (3), and the gearbox end shift ball head (20) is located inside the second dust cover (3) and is fixedly connected to the shift push rod (21).

9. The flexible shaft assembly according to any one of claims 1-5, characterized in that, The flexible shaft assembly also includes a covering layer (4), which covers the core wire (1).

10. Vehicle, characterized in that The flexible shaft assembly includes any one of claims 1-9.

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