Flexible shaft wire arrangement and vehicle using the same

Abstract

The utility model relates to the field of flexible shaft processing discloses a kind of flexible shaft wire device and vehicle flexible shaft.It includes pedestal, winding drum and guide wheel component, the side of pedestal is rotatably provided with the big winding drum of winding wire, driving assembly is connected on pedestal, winding drum is detachably connected with driving assembly, driving assembly is used to drive winding drum rotation, to wire on big winding drum is wound on winding drum, pedestal top is also provided with the light pole wire arrangement device that metal wire is moved along winding drum axial reciprocating, guide wheel component includes guide wheel support and ceramic wire guide wheel, ceramic wire guide wheel is equipped with arc ring groove, metal wire passes through arc ring groove, ceramic wire guide wheel is slidably rotatably connected with guide wheel support;When light pole wire arrangement device drives metal wire to move, ceramic wire guide wheel is suitable to be moved under the driving of metal wire.The utility model ceramic wire guide wheel can be moved under the driving of metal wire, reduce the risk that metal wire is damaged, and the strength of metal wire whole is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of flexible shaft processing technology, and more specifically, to a flexible shaft guide wire device and a flexible shaft for vehicles. Background Technology

[0002] Automotive flexible shafts are primarily composed of multiple layers of metal wires wound and stacked alternately on a flexible hose. Each layer of wires has a different diameter and number, thus increasing the shaft's strength under torque in all directions. The metal wires are typically wound onto a large spool by the manufacturer. During production, a flexible shaft guide device winds the wires from the large spool onto smaller spools adapted to the production equipment. Usually, the wires from one large spool can be wound onto multiple smaller spools for transfer. During this process, a drive unit on the flexible shaft guide device rotates the smaller spools to wind the wires. The guide device also includes metal guide wheels with grooves for the wires to pass through. To ensure the wires are evenly wound onto the smaller spools, the flexible shaft guide device features a smooth wire guide with metal rings for the wires to pass through. The smooth wire guide drives the metal rings to guide the wires in a reciprocating motion along the axial direction of the smaller spools for even winding.

[0003] However, in the aforementioned technology, the metal guide wheel on the wire path cannot move synchronously with the guide rod. When the guide rod moves the wire to the end of the small winding drum, the wire at the metal guide wheel will also deviate and make rigid contact with the groove edge of the metal guide wheel ring. This causes marks to easily form at the corresponding position of the wire, affecting its strength and toughness. In addition, due to the thin diameter of the wire, it is easy for the wire to cut the metal guide wheel and metal ring during high-speed movement, resulting in cutting grooves on the metal guide wheel and metal ring. This affects the service life of the metal guide wheel and metal ring, and the cutting grooves affect the smoothness of the wire passing through. It is also more likely to damage the wire, resulting in uneven strength of the entire wire section, which in turn affects the quality of the flexible shaft. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides a flexible shaft wire guide device, comprising a base, a winding drum, and a guide wheel assembly. A large winding disc is rotatably mounted on one side of the base, and a metal wire is wound on the large winding disc. A drive assembly is connected to the base, and the winding drum is detachably connected to the drive assembly. The drive assembly is used to drive the winding drum to rotate, so as to wind the metal wire on the large winding disc onto the winding drum. A guide rod wire guide, which drives the metal wire to reciprocate along the axial direction of the winding drum, is also provided on the top of the base. The guide wheel assembly includes a guide wheel bracket and a ceramic wire guide wheel. The ceramic wire guide wheel has an arc-shaped groove through which the metal wire passes. The ceramic wire guide wheel is slidably and rotatably connected to the guide wheel bracket. When the guide rod wire guide wheel moves the metal wire, the ceramic wire guide wheel is adapted to move synchronously under the drive of the metal wire.

[0005] Optionally, the top of the guide wheel bracket is provided with an opening groove for the ceramic guide wheel to move, and flexible buffers are installed on both groove walls along the moving direction of the ceramic guide wheel.

[0006] Optionally, a first metal ring is installed on the top of the optical rod cable tray, and a first ceramic ring for the metal wire to pass through is inserted and fixed inside the first metal ring. The inner edge of the end of the first ceramic ring is provided with an arc surface.

[0007] Optionally, a second metal ring is also installed on the top of the optical rod cable guide. The second metal ring is located on the side of the first metal ring near the winding drum. The second metal ring is tilted downward toward the winding drum. A second ceramic ring for the metal wire to pass through is inserted and fixed inside the second metal ring. The inner edge of the end of the second ceramic ring is also provided with an arc surface.

[0008] Optionally, an open placement box is provided on one side of the base, and multiple insertion posts are spaced apart in the placement box. The winding spool is adapted to be sleeved on any one of the insertion posts and multiple winding spools are stacked.

[0009] Optionally, the base is connected to a tail frame, and a support rod is connected to the tail frame, with the large winding reel rotatably mounted on the support rod.

[0010] Optionally, the support rod is inclined to the tailstock in the horizontal direction, so that the height of the large winding spool at one end of the support rod along the axial direction of the tailstock is lower than the height at the other end.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] 1. Compared with metal guide wheels, ceramic guide wheels are more wear-resistant, have a longer lifespan, and have a smoother surface. They generate less friction with the metal wire, are less likely to produce linear cutting grooves, and have less impact on the metal wire. During the process of the guide wheel moving the metal wire about to be wound on the bobbin, the ceramic guide wheel can also move under the action of the metal wire. This reduces the risk of stress concentration damaging the metal wire when it is bent too much relative to the ceramic guide wheel, and makes the overall strength of the metal wire more uniform.

[0013] 2. Since the ceramic guide wheel needs to move back and forth on the guide wheel bracket, and the ceramic guide wheel is fragile after being subjected to a large impact, flexible buffers are set on the two opposite groove walls of the opening groove to buffer the ceramic guide wheel when it hits the groove wall of the opening groove, so that the ceramic guide wheel is not easy to break and has a longer service life.

[0014] 3. The first and second metal rings are easier to connect with the guide rod wire guide, and can gradually guide the path of the metal wire so that the metal wire is finally wound on the winding drum at a gentler angle. During the movement of the metal wire, it comes into contact with the first and second ceramic rings. The surfaces of the first and second ceramic rings are smoother, resulting in less friction with the metal wire, making it less likely to produce linear cutting grooves and less likely to damage the metal wire.

[0015] 4. The spools with and without metal wire can be stacked and fitted onto the corresponding posts. Even if the base vibrates, the stacked spools are less likely to fall over and scatter. The stacked spools can also reduce the horizontal space occupied by the guide device.

[0016] In addition, this utility model provides a flexible shaft for vehicles, which is manufactured using the flexible shaft guide device described above. Compared with the prior art, the advantages of the flexible shaft for vehicles described in this utility model are that the overall strength is more uniform, greatly reducing the occurrence of defects and making it less prone to breakage. Attached Figure Description

[0017] Figure 1 The structure of the flexible shaft wire device in the embodiments of this utility model Figure 1 ;

[0018] Figure 2 The structure of the flexible shaft wire device in the embodiment of this utility model Figure 2 ;

[0019] Figure 3 This is a structural diagram of the guide wheel assembly in an embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of the optical rod cable guide, cable top seat, first metal ring, and second metal ring in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base; 11. Large winding reel; 12. Smooth rod cable guide; 13. Transmission seat; 131. Transmission shaft; 14. Protective cover; 15. Placement box; 151. Insert post; 16. Tail frame; 161. Support rod; 17. Cable guide top seat; 18. First metal ring; 181. First ceramic ring; 19. Second metal ring; 191. Second ceramic ring; 2. Winding drum; 3. Guide wheel assembly; 31. Guide wheel bracket; 32. Ceramic guide wheel; 33. Opening slot; 34. Flexible buffer. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-4 This application will be described in further detail.

[0023] In a first aspect, this utility model provides a flexible shaft wire device, referring to... Figure 1 and Figure 2 The flexible shaft conductor assembly includes a base 1, a winding drum 2, and a guide wheel assembly 3. A large winding reel 11 is rotatably connected to the tail of the base 1, and metal wire is wound on the large winding reel 11. A drive assembly is connected to the base 1 to drive the winding drum 2 to rotate, thereby winding the metal wire from the large winding reel 11 onto the winding drum 2. The winding drum 2 is detachably connected to the drive assembly, so that after a certain amount of metal wire has been wound onto one winding drum 2, it can be removed and replaced with another winding drum 2 without metal wire to continue winding. The top of the base 1 is also equipped with a smooth rod wire guide 12 (existing technology, including a bracket, a rotating rod rotatably mounted on the bracket and a sliding member slidably sleeved on the rotating rod. When the rotating rod rotates, three inclined bearings (with conical or arc-shaped inner rings) inside the sliding member contact the surface of the rotating rod. The friction drives the bearings to rotate. Since there is an inclination angle between the bearings and the rotating rod, the rotation of the bearings is converted into a thrust along the axial direction of the rotating rod, causing the sliding member to move. When the sliding member moves to the end of its stroke, the impact rod or the deflector touches the limit stop, forcing the inclination angle direction of all bearings to reverse simultaneously. At this time, the direction of the axial thrust changes, and the sliding member moves in the opposite direction, realizing automatic reversal). The smooth rod wire guide 12 enables the metal wire to be wound on the winding drum 2 in an orderly and uniform manner. The guide wheel assembly 3 includes a guide wheel bracket 31 and a ceramic guide wheel 32. The ceramic guide wheel 32 is provided with an arc-shaped groove through which the metal wire passes. The ceramic guide wheel 32 is slidably and rotatably connected to the guide wheel bracket 31. When the optical rod cable guide 12 drives the metal wire to move, the ceramic guide wheel 32 is adapted to move synchronously under the drive of the metal wire.

[0024] Reference Figure 1 and Figure 2The drive assembly includes a servo motor mounted inside one side of the base 1 and a transmission base 13 mounted on top of the base 1. Both the servo motor and the transmission base 13 are fixedly connected to the base 1 by bolts. A transmission shaft 131 is rotatably mounted on the transmission base 13. Pulleys are keyed to both the motor shaft of the servo motor and the transmission shaft 131, and the two pulleys are connected by a ring belt. Therefore, the servo motor can drive the transmission shaft 131 to rotate. A protective cover 14 is bolted to one side of the base 1. The protective cover 14 protects the servo motor, transmission shaft 131, and belt to prevent accidents.

[0025] Both ends of the winding drum 2 are integrally formed with baffles, and a retaining ring is integrally formed on the drive shaft 131. The outer diameter of the retaining ring is larger than the outer diameter of the baffles. Multiple arc grooves are circumferentially spaced on the side of the baffles near the retaining ring. Arc-shaped blocks, the same number as the arc grooves and corresponding one-to-one, are integrally formed on the side of the retaining ring near the baffle. These arc-shaped blocks are inserted into the arc grooves, driving the winding drum 2 to rotate synchronously with the drive shaft 131. A threaded section is provided at the end of the drive shaft 131, located on the side of the winding drum 2 away from the retaining ring. A hand-tightening nut is threaded onto the threaded section, thereby locking the axial movement of the winding drum 2 and preventing it from shifting along the drive shaft 131.

[0026] The rotating rod of the bare rod cable guide 12 is keyed with a pulley, which is connected to the drive shaft 131 via a belt. Therefore, the rotation of the drive shaft 131 will also drive the rotating rod of the bare rod cable guide 12 to rotate, thereby driving the sliding member to move back and forth.

[0027] Reference Figure 1 and Figure 2 An open-shaped placement box 15 is provided on the rear side of the base 1. Two placement boxes 15 are symmetrically arranged at intervals along the left and right directions. Multiple insertion posts 151 are welded and fixed in each placement box 15. The multiple insertion posts 151 are arranged at intervals, and multiple winding drums 2 can be stacked on each insertion post 151. Even if the base 1 vibrates, the stacked winding drums 2 are not likely to fall over and scatter. Among them, the winding drums 2 with metal wire and the winding drums 2 without metal wire can be placed in the two placement boxes 15 respectively for classified storage.

[0028] A tail frame 16 is connected to the rear of the base 1. A fixing plate is welded to one side of the tail frame 16, and a support rod 161 is inserted into the fixing plate. The support rod 161 has an inclined section, with the end of the inclined section away from the fixing plate being higher than the end of the inclined section near the fixing plate. A large winding reel 11 is fitted onto the inclined section, making the large winding reel 11 tilted. That is, the height of the end of the large winding reel 11 near the tail frame 16 along the axial direction of the support rod 161 is lower than the height of the other end. This makes it less likely for the large winding reel 11 to fall off the support rod 161 during rotation, and also ensures the convenience of replacing the large winding reel 11. The position of the large winding reel 11 is lower than the top surface of the base 1.

[0029] Reference Figure 1 and Figure 3 Two sets of guide wheel assemblies 3 are spaced apart along the direction of wire movement. The guide wheel bracket 31 in the guide wheel assembly 3 closest to the guide rod cable guide 12 is higher than the guide wheel bracket 31 in the other guide wheel assembly 3. The rest of the structure is the same, thereby gradually guiding the wire path upward. The following description uses the cooperation structure of the guide wheel bracket 31 and the ceramic guide wheel 32 in one set of guide wheel assemblies 3 as an example.

[0030] The guide wheel bracket 31 is fixedly mounted on the base 1 by bolts. The top of the guide wheel bracket 31 has an opening slot 33 for the ceramic guide wheel 32 to be inserted and moved. The extension direction of the opening slot 33 is consistent with the axial direction of the drive shaft 131. A rotating column passes through the guide wheel bracket 31, passing within the opening slot 33. The ceramic guide wheel 32 is rotatably mounted on the rotating column and can move on it. Both ends of the rotating column are cantilevered outside the guide wheel bracket 31, and nuts are threaded onto both ends of the rotating column to prevent it from moving axially.

[0031] Reference Figure 1 and Figure 3 In this embodiment, flexible buffer elements 34 are glued to both walls of the opening groove 33 along the moving direction of the ceramic guide wheel 32 using strong adhesive. The flexible buffer elements 34 cushion the impact of the ceramic guide wheel 32 with the groove wall of the opening groove 33, making the ceramic guide wheel 32 less prone to breakage and extending its service life. In this embodiment, the flexible buffer element 34 is preferably a sponge; in another embodiment, the flexible buffer element 34 can be a rubber pad.

[0032] Reference Figure 2 and Figure 4 In the bare rod cable guide 12, the top of the sliding part is fixedly installed with a cable guide top seat 17 by bolts. A first metal ring 18 and a second metal ring 19 are welded and fixed on the cable guide top seat 17. The second metal ring 19 is located on the side of the first metal ring 18 near the drive shaft 131. The first metal ring 18 is placed horizontally, and the second metal ring 19 is placed at an angle. The opening at one end of the second metal ring 19 is tilted downward toward the winding drum 2 installed on the drive shaft 131, thereby gradually guiding the path of the metal wire so that the metal wire is finally wound on the winding drum 2 at a gentler angle.

[0033] Two first ceramic rings 181 are symmetrically inserted inside the first metal ring 18. Both first ceramic rings 181 are fixed inside the first metal ring 18 with strong adhesive, and their ends inside the first metal ring 18 abut against each other. The ends of the two first ceramic rings 181 that are furthest from each other are integrally formed with a first ceramic flange. The outer diameter of the first ceramic flange is equal to the outer diameter of the first metal ring 18. The first ceramic flange abuts against the end of the first metal ring 18, and the inner edge of the first ceramic flange is a rounded surface, which reduces stress concentration when the metal wire is bent and makes it less likely to scratch the metal wire.

[0034] Similarly, two second ceramic rings 191 are symmetrically inserted inside the second metal ring 19. Both second ceramic rings 191 are fixed inside the second metal ring 19 with strong adhesive, and their ends inside the second metal ring 191 abut against each other. The ends of the two second ceramic rings 191 that are furthest from each other are integrally formed with second ceramic flanges. The outer diameter of the second ceramic flanges is equal to the outer diameter of the second metal ring 19. The second ceramic flanges abut against the ends of the second metal ring 19, and their inner edges are also rounded, reducing stress concentration during wire bending and minimizing scratches on the wire. During the wire's movement, it contacts the first ceramic ring 181 and the second ceramic ring 191. The smoother surfaces of the first ceramic ring 181 and the second ceramic ring 191 result in less friction with the wire, reducing the likelihood of linear cutting grooves and damage to the wire.

[0035] The implementation principle of the flexible shaft wire guide device in this application embodiment is as follows: The ceramic wire guide wheel 32 is more wear-resistant, has a longer lifespan, and a smoother surface compared to the metal guide wheel. It generates less friction with the metal wire, is less prone to linear cutting grooves, and has less impact on the metal wire. During the process of the guide rod 12 moving the metal wire about to be wound on the winding drum 2, the ceramic wire guide wheel 32 also moves under the influence of the metal wire. This reduces the risk of stress concentration and damage to the metal wire when it is excessively bent relative to the ceramic wire guide wheel 32, resulting in more uniform overall strength of the metal wire. The first metal ring 18 and the second metal ring 19 are easier to connect with the guide rod 12 and can gradually guide the path of the metal wire, allowing it to finally wind onto the winding drum 2 at a gentler angle. During the movement of the metal wire, it contacts the first ceramic ring 181 and the second ceramic ring 191. The surfaces of the first ceramic ring 181 and the second ceramic ring 191 are smoother, resulting in less friction with the metal wire, less likelihood of linear cutting grooves, and less damage to the metal wire.

[0036] Secondly, another embodiment of the present invention provides a flexible shaft for vehicles, which is manufactured by processing metal wire wound on the winding drum in the flexible shaft guide device of the first aspect.

[0037] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0038] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 disclosure 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. Therefore, they should not be construed as limitations on this disclosure.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0041] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A flexible shaft conductor device, characterized in that: The device includes a base (1), a winding drum (2), and a guide wheel assembly (3). A large winding disc (11) is rotatably provided on one side of the base (1), and metal wire is wound on the large winding disc (11). A drive assembly is connected to the base (1). The winding drum (2) is detachably connected to the drive assembly. The drive assembly is used to drive the winding drum (2) to rotate so that the metal wire on the large winding disc (11) is wound onto the winding drum (2). The top of the base (1) is also provided with a smooth rod wire guide (12) that drives the metal wire to reciprocate along the axial direction of the winding drum (2). The guide wheel assembly (3) includes a guide wheel bracket (31) and a ceramic guide wheel (32). The ceramic guide wheel (32) is provided with an arc-shaped groove through which the metal wire passes. The ceramic guide wheel (32) is slidably and rotatably connected to the guide wheel bracket (31). When the optical rod cable guide (12) drives the metal wire to move, the ceramic guide wheel (32) is adapted to move synchronously under the drive of the metal wire.

2. The flexible shaft guide wire device according to claim 1, characterized in that: The top of the guide wheel bracket (31) is provided with an opening groove (33) for the ceramic guide wheel (32) to move. Flexible buffers (34) are installed on both groove walls of the opening groove (33) along the moving direction of the ceramic guide wheel (32).

3. The flexible shaft guide wire device according to claim 1, characterized in that: The top of the optical rod cable tray (12) is equipped with a first metal ring (18), and a first ceramic ring (181) for the metal wire to pass through is inserted and fixed inside the first metal ring (18). The inner edge of the end of the first ceramic ring (181) is provided with an arc surface.

4. The flexible shaft guide wire device according to claim 3, characterized in that: The top of the optical rod cable guide (12) is also equipped with a second metal ring (19). The second metal ring (19) is located on the side of the first metal ring (18) close to the winding drum (2). The second metal ring (19) is tilted downward toward the winding drum (2). A second ceramic ring (191) for the metal wire to pass through is inserted and fixed inside the second metal ring (19). The inner edge of the end of the second ceramic ring (191) is also provided with an arc surface.

5. The flexible shaft guide wire device according to claim 1, characterized in that: The base (1) has an open placement box (15) on one side. Multiple insertion posts (151) are spaced apart inside the placement box (15). The winding drum (2) is adapted to be sleeved on any one of the insertion posts (151) and multiple winding drums (2) are stacked.

6. The flexible shaft guide wire device according to claim 1, characterized in that: The base (1) is connected to a tail frame (16) at its tail end, and a support rod (161) is connected to the tail frame (16). The large winding reel (11) is rotatably sleeved on the support rod (161).

7. The flexible shaft guide wire device according to claim 6, characterized in that: The support rod (161) is inclined to the tailstock (16) in the horizontal direction, so that the height of the large winding spool (11) along the axial direction of the support rod (161) near one end of the tailstock (16) is lower than the height of the other end.

8. A flexible shaft for vehicles, characterized in that, It is manufactured by the metal wire wound on the winding drum (2) in the flexible shaft conductor device as described in any one of claims 1-7.

Images