Flexible shaft assembly, transmission system, pedal control system and automobile

Abstract

The utility model provides a flexible shaft assembly, a transmission system, a pedal control system and an automobile. The flexible shaft assembly comprises a flexible shaft body, a first connector, a first fixing base, a second connector and a second fixing base, wherein the first connector and the first fixing base are arranged at the first end of the flexible shaft body, and the second connector and the second fixing base are arranged at the second end of the flexible shaft body. The first end of the flexible shaft body is sleeved with the first fixing seat, the first fixing seat is used for being fixed to a first transmission assembly or a driving motor connected with the first transmission assembly, and the first connector is connected with the first transmission assembly or the driving motor and used for power transmission; the second end of the flexible shaft body is sleeved with the second fixing base which is used for being fixed to a second transmission assembly, and the second connector is connected with the second transmission assembly and used for power transmission. The flexible shaft assembly can be arranged between the driving motor and the second transmission assembly and can also be arranged between the first transmission assembly and the second transmission assembly, and through the flexible shaft assembly, the arrangement flexibility of the transmission system is better, and the transmission efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission systems, in particular to a flexible shaft component, a transmission system, a pedal control system and a car. Background Art

[0002] The flexible shaft assembly is a mechanical component that is elastic and can bend freely for transmission. It has the characteristics of solving transmission errors, smooth transmission, low cost, high reliability and no need for lubrication, and is widely used in many fields. However, the joints at both ends of the existing flexible shaft assembly often need to be fixed with additional parts when assembled with other structures. They are prone to rust after long-term use, making the flexible shaft assembly difficult to disassemble. Utility Model Content

[0003] The utility model provides a flexible shaft component, a transmission system, a pedal control system and a car, so as to solve the problem that the existing flexible shaft component is inconvenient to install and disassemble.

[0004] A flexible shaft assembly comprises a flexible shaft body, a first joint and a first fixing seat arranged on a first end of the flexible shaft body, a second joint and a second fixing seat arranged on a second end of the flexible shaft body;

[0005] The first fixing seat is sleeved on the first end of the flexible shaft body and is used to be fixed on the first transmission assembly or the driving motor connected to the first transmission assembly, and the first joint is connected to the first transmission assembly or the driving motor for power transmission;

[0006] The second fixing seat is sleeved on the second end of the flexible shaft body and is used to be fixed on the second transmission assembly. The second joint is connected to the second transmission assembly for power transmission.

[0007] Preferably, at least one of the first fixing seat and the second fixing seat is a first clamping seat;

[0008] The first clamping seat comprises a first main body seat, at least two connecting arms and a fixing ring;

[0009] The first main body seat is sleeved on the flexible shaft body, at least two connecting arms are arranged on the first main body seat at intervals along the circumference of the first main body seat, the fixing ring is installed on the at least two connecting arms, and the fixing ring cooperates with the at least two connecting arms to form a clamping position;

[0010] At least one of the driving motor, the first transmission assembly and the second transmission assembly is provided with a limiting protrusion;

[0011] The limiting protrusion matches the locking position.

[0012] Preferably, the limiting protrusion is set as a trapezoidal boss;

[0013] The circumferential dimension of the end of the trapezoidal boss away from the first clamping seat is smaller than the circumferential dimension of the end of the trapezoidal boss close to the first clamping seat.

[0014] Preferably, at least one of the first fixing seat and the second fixing seat is a second clamping seat;

[0015] The second clamping seat comprises a second main body seat, a first connecting portion extending from the second main body seat in an axial direction, and a first clamping portion extending from one end of the first connecting portion in a circumferential direction;

[0016] The second main body seat, the first connecting portion and the first clamping portion cooperate to form an L-shaped clamping groove;

[0017] An axially arranged connecting seat is provided on the end surface of at least one of the driving motor, the first transmission assembly and the second transmission assembly, and a clamping boss is provided on the connecting seat;

[0018] The second main body seat is sleeved outside the connecting seat, and the L-shaped clamping groove is connected to the clamping boss.

[0019] Preferably, the second clamping seat further comprises a second clamping portion extending in a radial direction from the other side of the end of the first connecting portion;

[0020] An anti-drop boss is provided on the end surface corresponding to the connecting seat;

[0021] The second clamping portion matches the anti-slip boss.

[0022] Preferably, the first joint and the second joint are both square joints; the first transmission assembly and the output end of the drive motor / the second transmission assembly are both provided with an internal spline structure; the edge distance of the square joint is smaller than the internal spline tooth bottom spacing and larger than the internal spline tooth top distance.

[0023] A transmission system comprises a driving motor, a first transmission assembly, a second transmission assembly and the flexible shaft assembly;

[0024] The first end of the drive motor is connected to the first end of the flexible shaft assembly, and the second end of the drive motor is connected to the first transmission assembly; or the first end of the drive motor is connected to the first transmission assembly, and the first end of the flexible shaft assembly is connected to the first transmission assembly;

[0025] The second end of the flexible shaft assembly is connected to the second transmission assembly, the first transmission assembly is used to be connected to the first workpiece, and the second transmission assembly is used to be connected to the second workpiece.

[0026] Preferably, the first transmission assembly is a worm gear double worm assembly, and the worm gear double worm assembly includes a first housing, a first worm wheel, a first worm, a second worm and a first transmission rod;

[0027] The first worm gear is rotatably mounted in the first housing;

[0028] The first worm and the second worm are arranged in the first housing at intervals, the first worm is meshed with one side of the first worm wheel, and the second worm is meshed with the other side of the first worm wheel;

[0029] The first transmission rod is installed in the first worm gear, and the first transmission rod can move axially along the first worm gear;

[0030] The first worm is connected to the first end of the driving motor, the first transmission rod is used to be connected to the first workpiece, and the second worm is used to be connected to the second transmission assembly or the first end of the flexible shaft assembly.

[0031] Preferably, at least one of the first transmission assembly and the second transmission assembly is a worm gear single worm assembly, and the worm gear single worm assembly includes a second housing, a second worm wheel, a third worm and a second transmission rod;

[0032] The second worm gear is rotatably mounted in the second housing;

[0033] The third worm is disposed in the second housing and meshes with one side of the second worm wheel;

[0034] The second transmission rod is installed in the second worm gear, and the second transmission rod can move axially along the second worm gear;

[0035] The third worm is connected to the second end of the drive motor or the second end of the flexible shaft assembly, and the second transmission rod is used to be connected to the second workpiece.

[0036] Preferably, at least one of the first transmission assembly and the second transmission assembly is a rack and pinion assembly, and the rack and pinion assembly includes a third housing, a gear and a rack;

[0037] The gear is rotatably mounted on the third housing and connected to the second end of the drive motor or the second end of the flexible shaft assembly;

[0038] The rack is movably mounted on the third housing, meshed with the gear, and used to be connected to the second workpiece.

[0039] A pedal control system, comprising an accelerator pedal mechanism, a brake pedal mechanism and the transmission system;

[0040] The first transmission assembly of the transmission system is connected to the accelerator pedal mechanism, and the second transmission assembly of the transmission system is connected to the brake pedal mechanism.

[0041] A car comprises the pedal control system.

[0042] The flexible shaft assembly provided by the embodiment of the utility model is used to transmit power, and can be arranged between the driving motor and the second transmission assembly, or between the first transmission assembly and the second transmission assembly. The flexible shaft assembly makes the arrangement flexibility of the transmission system better and the transmission efficiency higher; the arrangement at different positions realizes the synchronous transmission of different positions, which can be the transmission in the same direction or the transmission in the opposite direction, and has a wider range of applications. The flexible shaft assembly includes a flexible shaft body, a first joint and a first fixed seat, a second joint and a second fixed seat; the flexible shaft body serves as a connecting body, and the length and specification of the flexible shaft body can be selected according to actual needs, and the flexible shaft assembly can be easily installed and disassembled by cooperating with the fixed seat and the joint.

[0043] In one example, when the flexible shaft assembly is arranged between the driving motor and the second transmission assembly, the first fixed seat is sleeved on the first end of the flexible shaft body for fixing on the driving motor, and the first joint is connected to the output end of the driving motor for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body for fixing on the second transmission assembly, and the second joint is connected to the second transmission assembly for power transmission.

[0044] In one example, when the flexible shaft assembly is arranged between the first transmission assembly and the second transmission assembly, the first fixed seat is mounted on the first end of the flexible shaft body for fixing on the first transmission assembly, and the first joint is connected to the first transmission assembly connected to the output end of the driving motor for power transmission; the second fixed seat is mounted on the second end of the flexible shaft body for fixing on the second transmission assembly, and the second joint is connected to the second transmission assembly for power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 It is an isometric view of a first structure of a flexible shaft assembly in one embodiment of the utility model;

[0047] Figure 2 It is an assembly diagram of the third worm and the first joint in one embodiment of the utility model;

[0048] Figure 3 This is an isometric view of the first clamping seat in one embodiment of the utility model;

[0049] Figure 4 It is an isometric view of the third worm in one embodiment of the utility model;

[0050] Figure 5 is a cross-sectional view of a third worm in an embodiment of the utility model;

[0051] Figure 6 It is a cross-sectional view of a worm gear and single worm assembly in one embodiment of the utility model;

[0052] Figure 7 It is an isometric view of a second structure of a flexible shaft assembly in one embodiment of the utility model;

[0053] Figure 8 It is an axial view of a clamping boss in one embodiment of the utility model;

[0054] Fig. 9 This is an isometric view of the second clamping seat in one embodiment of the utility model;

[0055] Fig.10 This is a schematic diagram of the installation of the second card socket in one embodiment of the utility model;

[0056] Fig.11 is a cross-sectional view of a worm gear and double worm assembly in one embodiment of the utility model;

[0057] Fig.12 It is an isometric view of a first arrangement structure of a transmission system in an embodiment of the utility model;

[0058] Fig.13 It is an isometric view of a second arrangement structure of a transmission system in one embodiment of the utility model;

[0059] Fig.14 It is an axonometric view of a worm gear and single worm assembly in one embodiment of the utility model.

[0060] Among them, 1. worm gear and double worm assembly; 101. first housing; 102. first worm wheel; 103. first worm; 104. second worm; 105. first transmission rod; 2. drive motor; 3. worm gear and single worm assembly; 31. second housing; 32. second worm wheel; 33. third worm; 34. second transmission rod; 4. flexible shaft assembly; 41. flexible shaft body; 42. first clamping seat; 421. first main body seat; 422. connecting arm; 423. fixing ring; 43. second clamping seat; 431. second main body seat; 432. first connecting part; 433. first clamping part; 434. second clamping part; 44. first joint; 45. second joint; 5. limiting protrusion; 6. clamping boss; 7. anti-drop boss; 8. internal spline structure; 9. connecting seat. DETAILED DESCRIPTION

[0061] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0062] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The utility model embodiment provides a flexible shaft assembly 4, referring to Figure 1 , Figure 2 , Figure 6 and Figure 7The flexible shaft assembly 4 includes a flexible shaft body 41, a first joint 44 and a first fixed seat arranged on the first end of the flexible shaft body 41, a second joint 45 and a second fixed seat arranged on the second end of the flexible shaft body 41; the first fixed seat is sleeved on the first end of the flexible shaft body 41, and is used to be fixed on the first transmission assembly or the driving motor 2 connected to the first transmission assembly, and the first joint 44 is connected to the first transmission assembly or the driving motor 2 for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body 41, and is used to be fixed on the second transmission assembly, and the second joint 45 is connected to the second transmission assembly for power transmission.

[0065] As an example, the flexible shaft assembly 4 is used to transmit power, and can be arranged between the drive motor 2 and the second transmission assembly, or between the first transmission assembly and the second transmission assembly. The flexible shaft assembly 4 makes the arrangement flexibility of the transmission system better and the transmission efficiency higher; the arrangement at different positions realizes the transmission of different positions synchronously, which can be the transmission in the same direction or the transmission in the opposite direction, and has a wider range of applications. The flexible shaft assembly 4 includes a flexible shaft body 41, a first joint 44 and a first fixed seat, a second joint 45 and a second fixed seat; the flexible shaft body 41 is used as a connecting body, and the length and specifications of the flexible shaft body 41 can be selected according to actual needs, and the flexible shaft assembly 4 can be easily installed and disassembled by cooperating with the fixed seat and the joint.

[0066] In one example, when the flexible shaft assembly 4 is arranged between the driving motor 2 and the second transmission assembly, the first fixed seat is sleeved on the first end of the flexible shaft body 41 for fixing on the driving motor 2, and the first joint 44 is connected to the output end of the driving motor 2 for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body 41 for fixing on the second transmission assembly, and the second joint 45 is connected to the second transmission assembly for power transmission.

[0067] In one example, when the flexible shaft assembly 4 is arranged between the first transmission assembly and the second transmission assembly, the first fixed seat is sleeved on the first end of the flexible shaft body 41 for being fixed on the first transmission assembly, and the first joint 44 is connected to the first transmission assembly connected to the output end of the driving motor 2 for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body 41 for being fixed on the second transmission assembly, and the second joint 45 is connected to the second transmission assembly for power transmission.

[0068] In one embodiment, referring to Figure 3 and Figure 6At least one of the first fixed seat and the second fixed seat is a first clamping seat 42; the first clamping seat 42 includes a first main body seat 421, at least two connecting arms 422 and a fixing ring 423; the first main body seat 421 is sleeved on the flexible shaft body 41, at least two connecting arms 422 are arranged on the first main body seat 421 along the circumferential interval of the first main body seat 421, and the fixing ring 423 is installed on the at least two connecting arms 422, and the fixing ring 423 cooperates with the at least two connecting arms 422 to form a clamping position; a limiting protrusion 5 is provided on at least one of the driving motor 2, the first transmission assembly and the second transmission assembly; the limiting protrusion 5 matches the clamping position.

[0069] As an example, the first structural form of the fixing seat, namely the first clamping seat 42, is introduced. At least one of the first fixing seat and the second fixing seat is the first clamping seat 42; the first clamping seat 42 includes a first main body seat 421, at least two connecting arms 422 and a fixing ring 423. During installation, the first main body seat 421 is sleeved on the flexible shaft body 41, at least two connecting arms 422 are arranged on the first main body seat 421 along the circumferential interval of the first main body seat 421, and the fixing ring 423 is installed on the at least two connecting arms 422. At this time, the fixing ring 423 cooperates with the at least two connecting arms 422 to form a clamping position; a limiting protrusion 5 is provided on at least one of the driving motor 2, the first transmission assembly and the second transmission assembly; the limiting protrusion 5 matches the clamping position, so that it is easy to install and disassemble the fixing seat, ensure the reliability of installation, and provide convenience for the installation and disassembly of the flexible shaft assembly 4. Among them, the fixing ring 423 can be set as a waist-shaped fixing ring, which can produce deformation in the circumferential direction and is easy to assemble.

[0070] In one embodiment, referring to Figure 6 , the limiting protrusion 5 is set as a trapezoidal boss; the circumferential dimension of the trapezoidal boss away from one end of the first clamping seat 42 is smaller than the circumferential dimension of the trapezoidal boss close to one end of the first clamping seat 42.

[0071] As an example, during assembly, the fixing ring 423 can be deformed in the circumferential direction. The limiting protrusion 5 is set to a trapezoidal boss. The circumferential dimension of the end of the trapezoidal boss away from the first clamping seat 42 is smaller than the circumferential dimension of the end of the trapezoidal boss close to the first clamping seat 42. This makes it easy to assemble. After assembly, the circumferential dimension of the end of the trapezoidal boss close to the first clamping seat 42 is larger, and the fixing ring 423 is fixed in place and will not fall out.

[0072] In one embodiment, referring to Figure 7 , Figure 8 , Fig. 9 and Fig.10At least one of the first fixed seat and the second fixed seat is a second clamping seat 43; the second clamping seat 43 includes a second main body seat 431, a first connecting portion 432 extending from the second main body seat 431 in an axial direction, and a first clamping portion 433 extending from the end side of the first connecting portion 432 in a circumferential direction; the second main body seat 431, the first connecting portion 432 and the first clamping portion 433 cooperate to form an L-shaped clamping groove; an axially arranged connecting seat 9 is provided on the end face of at least one of the drive motor 2, the first transmission assembly and the second transmission assembly, and a clamping boss 6 is provided on the connecting seat 9; the second main body seat 431 is sleeved outside the connecting seat 9, and the L-shaped clamping groove is connected to the clamping boss 6.

[0073] As an example, the second structural form of the fixed seat, namely the second clamping seat 43, is introduced, and at least one of the first fixed seat and the second fixed seat is the second clamping seat 43. The second clamping seat 43 includes a second main body seat 431, a first connecting portion 432 and a first clamping portion 433; the second main body seat 431 is installed on the flexible shaft body 41, the first connecting portion is extended from the second main body seat 431 in the axial direction, the first clamping portion 433 is extended from the end side of the first connecting portion 432 in the circumferential direction, and the second main body seat 431, the first connecting portion 432 and the first clamping portion 433 cooperate to form an L-shaped clamping groove; a connecting seat 9 arranged in the axial direction is provided on the end face of at least one of the driving motor 2, the first transmission assembly and the second transmission assembly, and a clamping boss 6 is provided on the connecting seat 9, where the connecting seat 9 can be a tubular structure, so that the first joint 44 or the second joint 45 is inserted therein, and the outer wall of the connecting seat 9 is provided with a clamping boss 6, which is used to cooperate with the L-shaped clamping groove in the second clamping seat 43 to achieve the clamping of the two. By adopting a rotating quick-insert structure, the L-shaped clamping groove is clamped with the clamping boss 6, so that the fixing seat can be installed and disassembled, the installation reliability is ensured, and the installation and disassembly of the flexible shaft assembly 4 is convenient. Among them, the L-shaped clamping groove can be set to one or more, and the multiple L-shaped clamping grooves are arranged at intervals along the circumferential direction of the second main body seat 431. It is also necessary to arrange multiple clamping bosses 6 at intervals along the circumferential direction on the corresponding connecting seat 9. The L-shaped clamping grooves and the clamping bosses 6 are clamped one by one, so as to realize the installation and disassembly of the fixing seat and ensure the installation reliability.

[0074] In one embodiment, referring to Figure 8 , Fig. 9 and Fig.10 The second clamping seat 43 also includes a second clamping portion 434 extending in the radial direction from the other side of the end of the first connecting portion 432; an anti-slip boss 7 is provided on the end surface corresponding to the connecting seat 9; and the second clamping portion 434 matches the anti-slip boss 7.

[0075] As an example, during the design, the second clamping seat 43 also includes a second clamping portion 434 extending in a radial direction from the other side of the end of the first connecting portion 432; an anti-slip boss 7 corresponding to the clamping boss 6 is provided on the end face of at least one of the drive motor 2, the first transmission assembly and the second transmission assembly; the second clamping portion 434 matches the anti-slip boss 7, which can block the rotation of the second main body seat 431 and prevent the clamping boss 6 from being separated from the clamping groove 432, thereby playing an anti-slip effect.

[0076] For example, a single bevel boss, i.e., an anti-slip boss 7, is arranged at intervals of 120° on the end face of at least one of the drive motor 2, the first transmission assembly, and the second transmission assembly, and three small bosses, i.e., snap-on bosses 6, are arranged at offset positions on the side of the connecting seat 9. The snap-on bosses 6 can be set to any shape of a circle, an ellipse, or a mushroom head. Three L-shaped snap-on grooves are designed on the second main body seat 431 corresponding to the three small bosses. The three are rotated to correspond to the three small bosses, and the second main body seat 431 is pushed. When the second main body seat 431 is pushed onto the end face of at least one of the drive motor 2, the first transmission assembly, and the second transmission assembly, the second main body seat 431 is rotated again to rotate along the single bevel boss until it falls to one side of the vertical surface of the single bevel boss, and the second main body seat 431 is assembled in place. This quick-insert structure is easy to assemble and anti-slip, and the three small bosses arranged at offset positions on the side can effectively eliminate the axial clearance.

[0077] In one embodiment, referring to Figure 2 , Figure 4 and Figure 5 The first joint 44 and the second joint 45 are both square joints; the first transmission assembly and the output end of the drive motor 2 / the second transmission assembly are both provided with an internal spline structure 8; the edge distance of the square joint is less than the internal spline tooth bottom spacing and greater than the internal spline tooth top distance.

[0078] As an example, during the design, the first joint 44 and the second joint 45 are both square joints; the first transmission component and the output end of the drive motor 2 / the second transmission component are both provided with an internal spline structure 8; the edge distance of the square joint is smaller than the internal spline tooth bottom spacing and larger than the internal spline tooth top distance, so that the square plug can be easily inserted into the internal spline structure 8, and the flexible shaft body 41 will not slip when rotating but will rotate with the rotation, which is convenient for transmitting power.

[0079] The utility model embodiment provides a transmission system, referring to Fig.12 and Fig.13, including a driving motor 2, a first transmission assembly, a second transmission assembly and a flexible shaft assembly 4; the first end of the driving motor 2 is connected to the first end of the flexible shaft assembly 4, and the second end of the driving motor 2 is connected to the first transmission assembly; or, the first end of the driving motor 2 is connected to the first transmission assembly, and the first end of the flexible shaft assembly 4 is connected to the first transmission assembly; the second end of the flexible shaft assembly 4 is connected to the second transmission assembly, the first transmission assembly is used to connect to the first workpiece, and the second transmission assembly is used to connect to the second workpiece.

[0080] As an example, the transmission system includes a driving motor 2, a first transmission component, a second transmission component and a flexible shaft component 4; wherein the driving motor 2 can be set as a single-head motor or a double-head motor; the flexible shaft component 4 is used to transmit power, and can be arranged between the driving motor 2 and the second transmission component, or between the first transmission component and the second transmission component. The flexible shaft component 4 makes the arrangement flexibility of the transmission system better and the transmission efficiency higher; the transmission of different positions is realized synchronously through the arrangement of different positions, which can be the transmission in the same direction or the transmission in the opposite direction, and the application range is wider. The flexible shaft component 4 includes a flexible shaft body 41, a first joint 44 and a first fixed seat, a second joint 45 and a second fixed seat; the flexible shaft body 41 is used as a connecting body, and the length and specifications of the flexible shaft body 41 can be selected according to actual needs, and the flexible shaft component 4 can be easily installed and disassembled by cooperating with the fixed seat and the joint.

[0081] In one example, when the driving motor 2 is a double-headed motor, the flexible shaft assembly 4 is arranged between the driving motor 2 and the second transmission assembly, the first fixed seat is sleeved on the first end of the flexible shaft body 41, and is used to be fixed on the driving motor 2, and the first joint 44 is connected to the second end of the driving motor 2 for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body 41, and is used to be fixed on the second transmission assembly, the second joint 45 is connected to the second transmission assembly for power transmission, the first transmission assembly is used to be connected to the first workpiece, and the second transmission assembly is used to be connected to the second workpiece, so that through the cooperation of the driving motor 2, the first transmission assembly, the second transmission assembly and the flexible shaft assembly 4, the first workpiece and the second workpiece can be adjusted at the same time, thereby improving the transmission effect of the transmission system.

[0082] In one example, when the driving motor 2 is a single-head motor, the flexible shaft assembly 4 is arranged between the first transmission assembly and the second transmission assembly, the first fixed seat is sleeved on the first end of the flexible shaft body 41, and is used to be fixed on the first transmission assembly, and the first joint 44 is connected to the first transmission assembly connected to the output end of the driving motor 2 for power transmission; the second fixed seat is sleeved on the second end of the flexible shaft body 41, and is used to be fixed on the second transmission assembly, and the second joint 45 is connected to the second transmission assembly for power transmission, the first transmission assembly is used to be connected to the first workpiece, and the second transmission assembly is used to be connected to the second workpiece, so that through the cooperation of the driving motor 2, the first transmission assembly, the second transmission assembly and the flexible shaft assembly 4, the first workpiece and the second workpiece can be adjusted at the same time, thereby improving the transmission effect of the transmission system.

[0083] In one embodiment, referring to Fig.11 The first transmission assembly is a worm gear double worm assembly 1, which includes a first housing 101, a first worm wheel 102, a first worm 103, a second worm 104 and a first transmission rod 105; the first worm wheel 102 is rotatably mounted in the first housing 101; the first worm 103 and the second worm 104 are spaced apart in the first housing 101, the first worm 103 is meshed with one side of the first worm wheel 102, and the second worm 104 is meshed with the other side of the first worm wheel 102; the first transmission rod 105 is mounted in the first worm wheel 102, and the first transmission rod 105 can move axially along the first worm wheel 102; the first worm 103 is connected to the first end of the driving motor 2, the first transmission rod 105 is used to be connected to the first workpiece, and the second worm 104 is used to be connected to the first end of the second transmission assembly or the flexible shaft assembly 4.

[0084] As an example, a first arrangement structure of a transmission system is introduced, wherein the first transmission component is a worm gear double-worm assembly 1 , which includes a first housing 101 , a first worm wheel 102 , a first worm 103 , a second worm 104 and a first transmission rod 105 . During installation, the first housing 101 is used as a reference part and can be installed on the driving motor 2; the first worm wheel 102 is installed in the first housing 101 through bearings or other connecting parts, and the first worm wheel 102 can rotate; the first worm 103 and the second worm 104 are arranged in the first housing 101 at intervals, so that the first worm 103 is meshed with one side of the first worm wheel 102, and the second worm 104 is meshed with the other side of the first worm wheel 102. In this way, the first worm 103 is rotated, which can drive the first worm wheel 102 to rotate, thereby driving the second worm 104 to rotate, which is the first transmission path; then the first transmission rod 105 is installed in the first worm wheel 102. When the first worm wheel 102 rotates, the first transmission rod 105 can be driven to move axially along the first worm wheel 102 (axial telescopic movement), which is the second transmission path. The driving motor 2 is a single-head motor, and the output end of the driving motor 2 is connected to the first worm 103 of the worm-gear double-worm assembly 1; it is connected to the second worm 104 of the worm-gear double-worm assembly 1, the second transmission assembly is used to be connected to the second workpiece, and the first transmission rod 105 is used to connect to the first workpiece; the driving motor 2 provides power to drive the first worm 103 to rotate, which can drive the first worm wheel 102 to rotate, thereby driving the second worm 104 to rotate, and the second transmission assembly is used to adjust the second workpiece; or, the second worm 104 is connected to the first end of the flexible shaft assembly 4, the driving motor 2 provides power to drive the first worm 103 to rotate, which can drive the first worm wheel 102 to rotate, thereby driving the second worm 104 to rotate, the second worm 104 drives the flexible shaft assembly 4 to rotate, and the flexible shaft assembly 4 is used to adjust the second workpiece through the second transmission assembly; at the same time, the rotation of the first worm wheel 102 can drive the first transmission rod 105 to move axially along the first worm wheel 102 to adjust the first workpiece. The combination of a drive motor 2 and a worm gear has been applied in many fields of motor transmission, but it is basically a one-to-one match between the drive motor 2 and the worm gear. If there are transmission requirements in two different positions or directions, two drive motors 2 are required to correspond, which increases the product cost and the difficulty of layout. The worm gear double worm assembly 1 can realize dual transmission, with a simple structural layout and reduced costs; at the same time, by using a drive motor 2, a worm gear double worm assembly 1 and a second transmission assembly, the two sets of transmission paths can be accurately synchronized to avoid possible control deviations caused by the control of the two drive motors 2, meet the use requirements, and have a broader application prospect.

[0085] In one embodiment, referring to Fig.14At least one of the first transmission assembly and the second transmission assembly is a worm gear single worm assembly 3, and the worm gear single worm assembly 3 includes a second housing 31, a second worm wheel 32, a third worm 33 and a second transmission rod 34; the second worm wheel 32 is rotatably mounted in the second housing 31; the third worm 33 is arranged in the second housing 31 and meshes with one side of the second worm wheel 32; the second transmission rod 34 is installed in the second worm wheel 32, and the second transmission rod 34 can move axially along the second worm wheel 32; the third worm 33 is connected to the second end of the drive motor 2 or the second end of the flexible shaft assembly 4, and the second transmission rod 34 is used to be connected to the second workpiece.

[0086] As an example, a second arrangement structure of the transmission system is introduced, in which at least one of the first transmission component and the second transmission component is a worm gear single-worm assembly 3, and the worm gear single-worm assembly 3 includes a second housing 31, a second worm wheel 32, a third worm 33 and a second transmission rod 34; during installation, the second housing 31 serves as a supporting structure for installing parts of the worm gear single-worm; the second worm wheel 32 is installed in the second housing 31 through bearings or other connecting parts, and the third worm 33 is arranged in the second housing 31 and meshes with one side of the second worm wheel 32. The rotation of the third worm 33 can drive the second worm wheel 32 to rotate; the second transmission rod 34 is installed in the second worm wheel 32, and the rotation of the second worm wheel 32 can drive the second transmission rod 34 to move axially along the second worm wheel 32. The third worm 33 in the first transmission assembly is connected to the second end (i.e., the output end) of the drive motor 2, the first end of the flexible shaft assembly 4 is connected to the first end of the drive motor 2, and the third worm 33 in the second transmission assembly is connected to the second end of the flexible shaft assembly 4; when the drive motor 2 provides power, the third worm 33 of the first transmission assembly can be driven to rotate, so as to drive the second worm wheel 32 in the first transmission assembly to rotate, so as to drive the second transmission rod 34 to move axially along the second worm wheel 32, so as to adjust the second workpiece; at the same time, the third worm 33 in the second transmission assembly is driven to rotate by the flexible shaft assembly 4, so as to drive the second worm wheel 32 in the second transmission assembly to rotate, so as to drive the second transmission rod 34 to move axially along the second worm wheel 32, so as to adjust the first workpiece. The transmission system can realize dual transmission, has a simple structural arrangement, and reduces costs; at the same time, by using a drive motor 2, a first transmission assembly, a flexible shaft assembly 4, and a second transmission assembly, the two sets of transmission paths can be accurately synchronized, avoiding the control deviation that may occur in the control of the two drive motors 2, meeting the use requirements, and having a wider application prospect.

[0087] In one embodiment, at least one of the first transmission assembly and the second transmission assembly is a gear rack assembly, which includes a third housing, a gear and a rack; the gear is rotatably mounted on the third housing and connected to the second end of the drive motor 2 or the second end of the flexible shaft assembly 4; the rack is movably mounted on the third housing, meshing with the gear, and used to connect to the second workpiece.

[0088] As an example, a third arrangement structure of the transmission system is introduced, wherein at least one of the first transmission assembly and the second transmission assembly is a gear rack assembly, and the gear rack assembly includes a third housing, a gear and a rack; when installed, the third housing is used as a supporting structure for installing parts of the gear rack assembly; the gear is installed in the third housing through a bearing or other connecting parts, connected to the second end of the drive motor 2 or the second end of the flexible shaft assembly 4, and the rack is movably installed on the third housing, meshed with the gear, and used to connect with the second workpiece. Specifically, the gear in the first transmission assembly is connected to the second end (i.e., the output end) of the drive motor 2, the first end of the flexible shaft assembly 4 is connected to the first end of the drive motor 2, and the gear in the second transmission assembly is connected to the second end of the flexible shaft assembly 4. When the drive motor 2 provides power, it can drive the gear of the first transmission assembly to rotate, so as to drive the rack in the first transmission assembly to move on the third housing, so as to adjust the second workpiece; at the same time, the gear in the second transmission assembly is driven to rotate through the flexible shaft assembly 4, so as to drive the rack in the first transmission assembly to move on the third housing, so as to adjust the first workpiece. The transmission system can realize dual transmission, has a simple structural layout and reduces costs; at the same time, by using a drive motor 2, a first transmission component, a flexible shaft component 4 and a second transmission component, the two sets of transmission paths can be accurately synchronized to avoid possible control deviations that may occur in the control of the two drive motors 2, meet usage requirements, and have broader application prospects.

[0089] The embodiment of the utility model provides a pedal control system, comprising an accelerator pedal mechanism, a brake pedal mechanism and a transmission system; a first transmission component of the transmission system is connected to the accelerator pedal mechanism, and a second transmission component of the transmission system is connected to the brake pedal mechanism.

[0090] As an example, the pedal control system includes an accelerator pedal mechanism, a brake pedal mechanism and a transmission system, wherein the accelerator pedal mechanism is the first workpiece and the brake pedal mechanism is the second workpiece. The transmission system includes a drive motor 2, a first transmission assembly, a second transmission assembly and a flexible shaft assembly 4; wherein the drive motor 2 can be set as a single-head motor or a double-head motor; the flexible shaft assembly 4 is used to transmit power, and can be arranged between the drive motor 2 and the second transmission assembly, or between the first transmission assembly and the second transmission assembly. The flexible shaft assembly 4 makes the arrangement flexibility of the transmission system better and the transmission efficiency higher; the transmission of different positions is realized synchronously through the arrangement of different positions, which can be the transmission in the same direction or the transmission in the opposite direction, and has a wider range of applications. In this way, through the cooperation of the drive motor 2, the first transmission assembly, the second transmission assembly and the flexible shaft assembly 4, the accelerator pedal mechanism and the brake pedal mechanism can be adjusted at the same time, thereby improving the transmission effect of the transmission system.

[0091] An embodiment of the utility model provides a car, comprising a pedal control system.

[0092] As an example, the pedal control system includes an accelerator pedal mechanism, a brake pedal mechanism and a transmission system, wherein the accelerator pedal mechanism is the first workpiece and the brake pedal mechanism is the second workpiece. The transmission system includes a drive motor 2, a first transmission assembly, a second transmission assembly and a flexible shaft assembly 4; wherein the drive motor 2 can be set as a single-head motor or a double-head motor; the flexible shaft assembly 4 is used to transmit power, and can be arranged between the drive motor 2 and the second transmission assembly, or between the first transmission assembly and the second transmission assembly. The flexible shaft assembly 4 makes the arrangement flexibility of the transmission system better and the transmission efficiency higher; the transmission of different positions is realized synchronously through the arrangement of different positions, which can be the transmission in the same direction or the transmission in the opposite direction, and has a wider range of applications. In this way, through the cooperation of the drive motor 2, the first transmission assembly, the second transmission assembly and the flexible shaft assembly 4, the accelerator pedal mechanism and the brake pedal mechanism can be adjusted at the same time, thereby improving the transmission effect of the transmission system.

[0093] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A flexible shaft assembly, characterized in that: It comprises a flexible shaft body, a first joint and a first fixing seat arranged on a first end of the flexible shaft body, and a second joint and a second fixing seat arranged on a second end of the flexible shaft body; The first fixing seat is sleeved on the first end of the flexible shaft body and is used to be fixed on the first transmission assembly or the driving motor connected to the first transmission assembly, and the first joint is connected to the first transmission assembly or the driving motor for power transmission; The second fixing seat is sleeved on the second end of the flexible shaft body and is used to be fixed on the second transmission assembly. The second joint is connected to the second transmission assembly for power transmission.

2. The flexible shaft assembly according to claim 1, characterized in that: At least one of the first fixing seat and the second fixing seat is a first clamping seat; The first clamping seat comprises a first main body seat, at least two connecting arms and a fixing ring; The first main body seat is sleeved on the flexible shaft body, at least two connecting arms are arranged on the first main body seat at intervals along the circumference of the first main body seat, the fixing ring is installed on the at least two connecting arms, and the fixing ring cooperates with the at least two connecting arms to form a clamping position; At least one of the driving motor, the first transmission assembly and the second transmission assembly is provided with a limiting protrusion; The limiting protrusion matches the locking position.

3. The flexible shaft assembly according to claim 2, characterized in that: The limiting protrusion is set as a trapezoidal boss; The circumferential dimension of the end of the trapezoidal boss away from the first clamping seat is smaller than the circumferential dimension of the end of the trapezoidal boss close to the first clamping seat.

4. The flexible shaft assembly according to claim 1, characterized in that: At least one of the first fixing seat and the second fixing seat is a second clamping seat; The second clamping seat comprises a second main body seat, a first connecting portion extending from the second main body seat in an axial direction, and a first clamping portion extending from one end of the first connecting portion in a circumferential direction; The second main body seat, the first connecting portion and the first clamping portion cooperate to form an L-shaped clamping groove; An axially arranged connecting seat is provided on the end surface of at least one of the driving motor, the first transmission assembly and the second transmission assembly, and a clamping boss is provided on the connecting seat; The second main body seat is sleeved outside the connecting seat, and the L-shaped clamping groove is connected to the clamping boss.

5. The flexible shaft assembly according to claim 4, characterized in that: The second clamping seat further includes a second clamping portion extending in a radial direction from the other side of the end of the first connecting portion; An anti-drop boss is provided on the end surface corresponding to the connecting seat; The second clamping portion matches the anti-slip boss.

6. The flexible shaft assembly according to claim 1, characterized in that: The first joint and the second joint are both square joints; the first transmission assembly and the output end of the drive motor / the second transmission assembly are both provided with an internal spline structure; the edge distance of the square joint is smaller than the internal spline tooth bottom spacing and larger than the internal spline tooth top distance.

7. A transmission system, characterized in that: It comprises a driving motor, a first transmission assembly, a second transmission assembly and the flexible shaft assembly according to any one of claims 1 to 6; The first end of the drive motor is connected to the first end of the flexible shaft assembly, and the second end of the drive motor is connected to the first transmission assembly; or the first end of the drive motor is connected to the first transmission assembly, and the first end of the flexible shaft assembly is connected to the first transmission assembly; The second end of the flexible shaft assembly is connected to the second transmission assembly, the first transmission assembly is used to be connected to the first workpiece, and the second transmission assembly is used to be connected to the second workpiece.

8. The transmission system according to claim 7, characterized in that: The first transmission assembly is a worm gear double worm assembly, and the worm gear double worm assembly includes a first housing, a first worm wheel, a first worm, a second worm and a first transmission rod; The first worm gear is rotatably mounted in the first housing; The first worm and the second worm are arranged in the first housing at intervals, the first worm is meshed with one side of the first worm wheel, and the second worm is meshed with the other side of the first worm wheel; The first transmission rod is installed in the first worm gear, and the first transmission rod can move axially along the first worm gear; The first worm is connected to the first end of the driving motor, the first transmission rod is used to be connected to the first workpiece, and the second worm is used to be connected to the second transmission assembly or the first end of the flexible shaft assembly.

9. The transmission system according to claim 7, characterized in that: At least one of the first transmission assembly and the second transmission assembly is a worm gear single worm assembly, and the worm gear single worm assembly includes a second housing, a second worm wheel, a third worm and a second transmission rod; The second worm gear is rotatably mounted in the second housing; The third worm is disposed in the second housing and meshes with one side of the second worm wheel; The second transmission rod is installed in the second worm gear, and the second transmission rod can move axially along the second worm gear; The third worm is connected to the second end of the drive motor or the second end of the flexible shaft assembly, and the second transmission rod is used to be connected to the second workpiece.

10. The transmission system according to claim 7, characterized in that: At least one of the first transmission assembly and the second transmission assembly is a gear rack assembly, and the gear rack assembly includes a third housing, a gear and a rack; The gear is rotatably mounted on the third housing and connected to the second end of the drive motor or the second end of the flexible shaft assembly; The rack is movably mounted on the third housing, meshed with the gear, and used to be connected to the second workpiece.

11. A pedal control system, characterized in that: A transmission system comprising an accelerator pedal mechanism, a brake pedal mechanism and any one of claims 7 to 10; The first transmission component of the transmission system is connected to the accelerator pedal mechanism, and the second transmission component of the transmission system is connected to the brake pedal mechanism.

12. A car, characterized in that: Includes the pedal control system as claimed in claim 11.

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