Brake force transmission mechanism, electric control brake and vehicle

Abstract

The invention provides a braking force transmission mechanism, an electric control brake and a vehicle, and relates to the technical field of brakes, the braking force transmission mechanism comprises a first transmission mechanism, a second transmission mechanism and a gear shifting mechanism, the first transmission mechanism comprises a first driving side and a first output side, and the first output side is used for driving a braking part to move; at least part of the movement area of the second transmission mechanism is arranged in a non-self-locking mode, the second transmission mechanism comprises a second driving side and a second output side, and the first output side is adjustably arranged on the second output side; when the gear shifting mechanism is located at the first position, the gear shifting mechanism is connected with the first driving side and the second driving side in a transmission mode, and when the gear shifting mechanism is located at the second position, the gear shifting mechanism is connected with the first driving side in a transmission mode and locks the second transmission mechanism. The gear shifting mechanism is switched to the second position, the gear shifting mechanism can transmit power to drive the first transmission mechanism to adjust the position of the braking component, and then the braking requirement is better met.

Description

Technical Field

[0001] The present invention relates to the technical field of brakes, and in particular to a brake force transmission mechanism, an electric control brake and a vehicle. Background Art

[0002] With the widespread use of vehicle equipment, the number of electronic mechanical brake systems used on vehicles has also grown rapidly. The existing electronic mechanical brake systems on vehicles generally use ball screws or ball ramp mechanisms as the force transmission mechanism. The motor drives the friction plate to be pressed onto the brake disc through the force transmission mechanism, thereby realizing the braking operation. In the electronically controlled mechanical brake system, the force transmission mechanism is a core component, and its reliability requirements are very high. When a ball ramp mechanism is used as the force transmission mechanism, the axial stroke of the ball ramp mechanism is relatively short. However, the existing electronic mechanical brake system often lacks the function of automatic adjustment of the brake clearance in the force transmission mechanism. When the friction plate is worn during use, the axial stroke of the ball ramp mechanism is difficult to meet the braking needs, resulting in insufficient braking force and affecting the braking effect, which in turn brings certain difficulties to the control of braking efficiency. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a brake force transmission mechanism, an electronically controlled brake and a vehicle, which can flexibly adjust the disc gap to meet braking needs after the friction plate is worn.

[0004] The above-mentioned object of the present invention can be achieved by adopting the following technical solutions. The present invention provides a brake force transmission mechanism, comprising:

[0005] a first transmission mechanism, the first transmission mechanism comprising a first driving side and a first output side, the first output side being used to drive the braking component to move;

[0006] a second transmission mechanism, wherein at least a portion of a movement area of ​​the second transmission mechanism is non-self-locking, the second transmission mechanism comprises a second driving side and a second output side, and the first output side is adjustably arranged on the second output side;

[0007] A shift mechanism, the shift mechanism includes a first position and a second position. When the shift mechanism is in the first position, the shift mechanism can be transmission-connected to the first drive side and the second drive side, and the shift mechanism can transmit power to drive the first transmission mechanism and the second transmission mechanism to move along the preset direction; when the shift mechanism is in the second position, the shift mechanism can be transmission-connected to the first drive side and lock the second transmission mechanism, and the shift mechanism can transmit power to drive the first transmission mechanism to move along the preset direction.

[0008] In a preferred embodiment of the present invention, the first transmission mechanism includes a threaded mechanism, the threaded mechanism includes a rotating shaft, and an adjusting gear sleeved on the rotating shaft, the adjusting gear constitutes the first driving side, the rotating shaft constitutes the first output side, the rotating shaft is used to drive the braking component to move, the adjusting gear can slide along the axial direction of the rotating shaft and be limited circumferentially with the rotating shaft, and when the shift mechanism is in the first position or the second position, the shift mechanism can be transmission-connected to the adjusting gear.

[0009] In a preferred embodiment of the present invention, the second transmission mechanism includes a ball ramp structure, which includes a driving side turntable, a fixed turntable, and a plurality of balls arranged between the driving side turntable and the fixed turntable, the driving side turntable is connected to the rotating shaft by a thread, the internal thread of the driving side turntable constitutes the second output side, the fixed turntable and the adjusting gear are arranged on both sides of the driving side turntable opposite to each other, and the outer wall of the driving side turntable is annularly provided with driving teeth, and the driving teeth constitute the second driving side; when the shift mechanism is in the first position, the shift mechanism can be transmission-connected to the driving teeth; when the shift mechanism is in the second position, the shift mechanism locks the driving teeth.

[0010] In a preferred embodiment of the present invention, the shift mechanism includes a movably adjustable rod, a shift gear rotatably connected to the adjustable rod, and a locking member arranged on the adjustable rod, the adjustable rod including a first position in a braking stage and a second position in a braking clearance adjustment stage; when the adjustable rod is in the first position, the shift gear is transmissionably engaged with the adjusting gear and the driving tooth; when the adjustable rod is in the second position, the locking member is engaged with the driving tooth, and the shift gear is engaged with the adjusting gear.

[0011] In a preferred embodiment of the present invention, a limiting structure is provided between the adjusting gear and the rotating shaft, and the limiting structure includes a limiting key arranged on the adjusting gear, and a sliding groove arranged on the rotating shaft, the sliding groove is extended along the axial direction of the rotating shaft, and the limiting key and the sliding groove are slidably connected.

[0012] In a preferred embodiment of the present invention, the shift mechanism further includes a power device, and the power device can drive the adjustment rod to switch between the first position and the second position.

[0013] In a preferred embodiment of the present invention, the power device includes an electromagnetic coil and a permanent magnet disposed on the adjusting rod, and the permanent magnet is movably inserted into the electromagnetic coil.

[0014] In a preferred embodiment of the present invention, the shift mechanism further includes a reset structure, and the reset structure can push the adjustment rod to switch from the second position to the first position.

[0015] In a preferred embodiment of the present invention, the reset structure includes a reset spring sleeved on the adjusting rod, one end of the reset spring is connected to the adjusting rod or one end of the reset spring abuts against the shift gear, and the other end of the reset spring is fixed.

[0016] In a preferred embodiment of the present invention, the shift mechanism also includes a fixed anti-rotation rod, which is arranged parallel to the axial direction of the rotating shaft, and the locking member is provided with a slot matching the anti-rotation rod, and the locking member is slidably connected to the anti-rotation rod through the slot.

[0017] In a preferred embodiment of the present invention, the rotating shaft and the driving side rotating disk are in a non-self-locking configuration.

[0018] In a preferred embodiment of the present invention, at least part of the outer wall of the rotating shaft is provided with an external thread, the driving side turntable is provided with an internal thread, the driving side turntable and the rotating shaft are matched with the internal thread through the external thread, and the spiral rise angle of the external thread is greater than the equivalent friction angle of the external thread, so that the rotating shaft and the driving side turntable are in a non-self-locking arrangement.

[0019] In a preferred embodiment of the present invention, ramp grooves are provided on the driving side turntable and / or the fixed turntable, and at least part of the ramp grooves are non-self-locking.

[0020] The present invention also provides an electronically controlled brake, comprising the aforementioned brake force transmission mechanism.

[0021] In a preferred embodiment of the present invention, the electronically controlled brake further comprises a control module, the control module is electrically connected to the brake force transmission mechanism, and the control module is used to control the adjustment member of the brake force transmission mechanism to switch between a first position and a second position.

[0022] In a preferred embodiment of the present invention, the electronically controlled brake further comprises a driving device, and the driving device is transmissionably connected to a shift gear of the brake force transmission mechanism.

[0023] The present invention also provides a vehicle, comprising the aforementioned electronically controlled brake.

[0024] The technical solution of the present invention has the following significant beneficial effects:

[0025] When the brake transmission mechanism of the present invention is used, the shift mechanism is switched to the first position, and the first drive side of the first transmission mechanism and the second drive side of the second transmission mechanism are connected in a transmission manner by the shift mechanism, so that the shift mechanism can transmit power to drive the first transmission mechanism and the second transmission mechanism to move in a preset direction, and then the first output side of the first transmission mechanism can be used to drive the brake component to move to play a braking role. In addition, the shift mechanism can be switched to the second position, and the first drive side of the first transmission mechanism can be connected in a transmission manner by the shift mechanism and the second transmission mechanism is locked, so that the shift mechanism can transmit power to drive the first transmission mechanism to move in a preset direction, while the second transmission mechanism does not move, and then the first transmission mechanism can be used to adjust the position of the brake component to better meet the braking needs.

[0026] Specifically, the driving side turntable and the fixed turntable are coaxially arranged on the rotating shaft, and a plurality of rolling balls are arranged between the driving side turntable and the fixed turntable. The rolling balls can move along the ramp groove under the relative rotation drive of the driving side turntable and the fixed turntable, thereby pushing the driving side turntable to move along the axial direction of the rotating shaft. An adjusting gear is also arranged on the rotating shaft, and the adjusting gear can slide along the axial direction of the rotating shaft and limit the circumference of the rotating shaft. The driving side turntable can push the adjusting gear to move along the axial direction of the rotating shaft, and the adjusting gear can rotate synchronously with the rotating shaft, so that the adjusting gear will not affect the movement of the driving side turntable.

[0027] In addition, a shift mechanism is also provided, which includes a movable adjustment rod, a shift gear rotatably connected to the adjustment rod, and a locking member provided on the adjustment rod. When the adjustment rod is in the first position, the shift gear is transmission-engaged with the adjustment gear and the driving tooth. At this time, the shift gear is driven to rotate by the driving device, and then the shift gear is used to transmit to synchronously drive the adjustment gear and the driving side rotating disk to rotate. Due to the relative rotation between the driving side rotating disk and the fixed rotating disk, the rolling ball moves along the ramp groove to push the driving side rotating disk to move along the axial direction of the rotating shaft, and the circumferential limit between the adjusting gear and the rotating shaft enables the driving side rotating disk, the adjusting gear and the rotating shaft to move synchronously along the axial direction, and then the rotating shaft can push the friction plate connected thereto to perform a braking operation.

[0028] When the friction plate is worn during use, the gap between the friction plate and the brake disc becomes larger, making it difficult for the axial stroke of the rolling ball ramp structure to meet the braking needs, which in turn leads to insufficient braking force and affects the braking effect, thus bringing certain difficulties to the control of braking efficiency.

[0029] In order to solve the above technical problems, the adjustment rod is switched to the second position. When the adjustment rod is in the second position, the locking member is meshed with the driving teeth, and the shift gear is meshed with the adjustment gear. At this time, the driving side turntable with the driving teeth is circumferentially limited by the locking member and cannot rotate, while the shift gear can still drive the adjustment gear to rotate. Since the adjusting gear and the rotating shaft are circumferentially limited, and the driving side turntable is fixed, the adjusting gear drives the rotating shaft and the driving side turntable to rotate relative to each other, so that the rotating shaft can be adjusted forward and backward relative to the driving side turntable, and then the axial position of the friction plate connected to the rotating shaft is adjusted synchronously, which plays a role in adjusting the braking clearance, so that the rolling ball ramp structure can meet the braking needs with a smaller axial stroke. In addition, the shift gear only needs one set of driving devices to achieve driving in the braking stage and the braking clearance adjustment stage, which also helps to reduce equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0032] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the brake force transmission mechanism of the present invention in the braking stage;

[0033] Figure 2 A front view schematic diagram of an embodiment of the brake force transmission mechanism of the present invention in a braking stage;

[0034] Figure 3 A cross-sectional schematic diagram of an embodiment of the brake force transmission mechanism of the present invention in a braking stage;

[0035] Figure 4 It is a three-dimensional schematic diagram of an embodiment of the brake force transmission mechanism of the present invention in the brake clearance adjustment stage;

[0036] Figure 5 It is a front view schematic diagram of an embodiment of the brake force transmission mechanism of the present invention in the brake clearance adjustment stage;

[0037] Figure 6 A schematic cross-sectional view of an embodiment of the brake force transmission mechanism of the present invention in a brake clearance adjustment stage;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of an embodiment of the driving side rotating disk of the present invention;

[0039] Figure 8 A schematic diagram of the three-dimensional structure of an embodiment of the adjusting gear of the present invention;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of an embodiment of the rotating shaft of the present invention.

[0041] Reference numerals in the above drawings:

[0042] 100, thread mechanism; 110, rotating shaft; 111, external thread; 120, adjusting gear;

[0043] 200, rolling ball ramp structure; 210, driving side turntable; 211, driving teeth; 212, internal thread; 220, fixed turntable; 230, rolling ball;

[0044] 300, shift mechanism; 310, adjustment rod; 320, shift gear; 330, locking member; 340, power device; 341, electromagnetic coil; 342, permanent magnet; 350, anti-rotation rod;

[0045] 410, limit key; 420, slide slot;

[0046] 500. Reset structure. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Implementation Method 1

[0049] Please refer to Figure 1 and Figure 4As shown, in an embodiment of the present invention, a brake force transmission mechanism is provided, which at least includes a first transmission mechanism, a second transmission mechanism, and a shifting mechanism 300, wherein the first transmission mechanism includes a first driving side and a first output side, and the first output side is used to drive the brake component to move; at least part of the movement area of ​​the second transmission mechanism is non-self-locking, and the second transmission mechanism includes a second driving side and a second output side, and the first output side is adjustably arranged on the second output side; the shifting mechanism 300 includes a first position and a second position, and when the shifting mechanism 300 is in the first position, the shifting mechanism 300 can be transmission-connected to the first driving side and the second driving side, and the shifting mechanism 300 can transmit power to drive the first transmission mechanism and the second transmission mechanism to move in a preset direction; when the shifting mechanism 300 is in the second position, the shifting mechanism 300 can be transmission-connected to the first driving side and lock the second transmission mechanism, and the shifting mechanism 300 can transmit power to drive the first transmission mechanism to move in a preset direction.

[0050] When the brake transmission mechanism of the present invention is used, the shift mechanism 300 is switched to the first position, and the first drive side of the first transmission mechanism and the second drive side of the second transmission mechanism are connected in a transmission manner by the shift mechanism 300, so that the shift mechanism 300 can transmit power to drive the first transmission mechanism and the second transmission mechanism to move in a preset direction, and then the first output side of the first transmission mechanism is used to drive the brake component to move to play a braking role. In addition, the shift mechanism 300 can also be switched to the second position, and the first drive side of the first transmission mechanism can be connected in a transmission manner by the shift mechanism 300 and the second transmission mechanism is locked, so that the shift mechanism 300 can transmit power to drive the first transmission mechanism to move in a preset direction, while the second transmission mechanism does not move, and then the first transmission mechanism can be used to adjust the position of the brake component to better meet the braking needs.

[0051] In the embodiment of the present invention, the first transmission mechanism includes a threaded mechanism 100, the threaded mechanism 100 includes a rotating shaft 110, and an adjusting gear 120 sleeved on the rotating shaft 110, the adjusting gear 120 constitutes a first driving side, the rotating shaft 110 constitutes a first output side, the rotating shaft 110 is used to drive the braking component to move, and the adjusting gear 120 can slide along the axial direction of the rotating shaft 110 and be circumferentially limited with the rotating shaft 110; when the shift mechanism 300 is in the first position or the second position, the shift mechanism 300 can be drivingly connected to the adjusting gear 120. The preset direction is the axial direction of the rotating shaft 110.

[0052] Designers can adjust the specific shape and structure of the brake component according to usage requirements. For example, the brake component is a friction plate, which is not specifically limited here.

[0053] In an embodiment of the present invention, the second transmission mechanism includes a rolling ball ramp structure 200, which includes a driving side turntable 210, a fixed turntable 220, and a plurality of rolling balls 230 arranged between the driving side turntable 210 and the fixed turntable 220. The driving side turntable 210 is connected to the rotating shaft 110 by a thread, and the internal thread of the driving side turntable 210 constitutes the second output side. The fixed turntable 220 and the adjusting gear 120 are arranged on both sides of the driving side turntable 210 opposite to each other. The outer wall of the driving side turntable 210 is annularly provided with driving teeth 211, and the driving teeth 211 constitute the second driving side; when the shift mechanism 300 is in the first position, the shift mechanism 300 can be transmission-connected to the driving teeth 211; when the shift mechanism 300 is in the second position, the shift mechanism 300 locks the driving teeth 211.

[0054] In an embodiment of the present invention, the shift mechanism 300 includes a movably adjustable rod 310, a shift gear 320 rotatably connected to the adjustable rod 310, and a locking member 330 arranged on the adjustable rod 310, wherein the adjustable rod 310 includes a first position in a braking stage and a second position in a braking clearance adjustment stage; when the adjustable rod 310 is in the first position, the shift gear 320 is transmissionably engaged with the adjusting gear 120 and the driving tooth 211; when the adjustable rod 310 is in the second position, the locking member 330 is engaged with the driving tooth 211, and the shift gear 320 is engaged with the adjusting gear 120.

[0055] In general, when the brake transmission mechanism is used, the driving side rotating disk 210 and the fixed rotating disk 220 are coaxially arranged on the rotating shaft 110, and a plurality of rolling balls 230 are arranged between the driving side rotating disk 210 and the fixed rotating disk 220. The rolling balls 230 can move along the ramp groove under the relative rotation drive of the driving side rotating disk 210 and the fixed rotating disk 220, thereby pushing the driving side rotating disk 210 to move along the axial direction of the rotating shaft 110. An adjusting gear 120 is also arranged on the rotating shaft 110. The adjusting gear 120 can slide along the axial direction of the rotating shaft 110 and be circumferentially limited with the rotating shaft 110. The driving side rotating disk 210 can push the adjusting gear 120 to move along the axial direction of the rotating shaft 110, and the adjusting gear 120 can rotate synchronously with the rotating shaft 110, so that the adjusting gear 120 will not affect the movement of the driving side rotating disk 210.

[0056] In addition, a shift mechanism 300 is provided, and the shift mechanism 300 includes a movably adjustable rod 310, a shift gear 320 rotatably connected to the adjustable rod 310, and a locking member 330 provided on the adjustable rod 310. Figure 1 , Figure 2 and Figure 3In the embodiment shown, when the adjusting rod 310 is in the first position, the shift gear 320 is transmission-engaged with the adjusting gear 120 and the driving tooth 211. At this time, the shift gear 320 is driven to rotate by the driving device, and then the shift gear 320 is used for transmission to synchronously drive the adjusting gear 120 and the driving side turntable 210 to rotate.

[0057] Due to the relative rotation between the driving side turntable 210 and the fixed turntable 220, the ball 230 moves along the ramp groove to push the driving side turntable 210 to move axially along the rotating shaft 110, and the circumferential limit between the adjusting gear 120 and the rotating shaft 110 enables the driving side turntable 210, the adjusting gear 120 and the rotating shaft 110 to move axially synchronously, and then the rotating shaft 110 can push the friction plate connected thereto to perform braking operations.

[0058] When the friction plate is worn during use, the gap between the friction plate and the brake disc becomes larger, making it difficult for the axial travel of the rolling ball ramp structure 200 to meet the braking needs, resulting in insufficient braking force and affecting the braking effect, thereby bringing certain difficulties to the control of braking performance.

[0059] In order to solve the above technical problem, the adjusting rod 310 is switched to the second position, such as Figure 4 , Figure 5 and Figure 6 In the embodiment shown, when the adjusting rod 310 is in the second position, the locking member 330 is meshed with the driving tooth 211, and the shift gear 320 is meshed with the adjusting gear 120. At this time, the driving side turntable 210 with the driving tooth 211 is circumferentially limited by the locking member 330 and cannot rotate, while the shift gear 320 can still drive the adjusting gear 120 to rotate.

[0060] Since the adjusting gear 120 and the rotating shaft 110 are circumferentially limited, and the driving side rotating disk 210 is fixed, the adjusting gear 120 drives the rotating shaft 110 and the driving side rotating disk 210 to rotate relative to each other, so that the rotating shaft 110 can be adjusted forward and backward relative to the driving side rotating disk 210, and then the axial position of the friction plate connected to the rotating shaft 110 is adjusted synchronously, which plays a role in adjusting the braking clearance, so that the rolling ball ramp structure 200 can meet the braking needs with a smaller axial stroke. In addition, the shifting gear 320 only needs one set of driving devices to achieve driving in the braking stage and the braking clearance adjustment stage, which also helps to reduce equipment costs.

[0061] In the embodiment of the present invention, ramp grooves are provided on the driving side rotating disk 210 and / or the fixed rotating disk 220, and at least part of the ramp grooves are non-self-locking. By making at least part of the ramp grooves non-self-locking, the problem of the rolling ball 230 being stuck when rolling in the ramp grooves can be avoided, and the rolling smoothness of the rolling ball 230 between the driving side rotating disk 210 and the fixed rotating disk 220 is improved, so that the rolling ball ramp structure 200 has better reliability during use.

[0062] Specifically, Figure 1 and Figure 7 In the embodiment shown, a plurality of driving side ramp grooves are provided on the driving side rotary disk 210, and a plurality of fixed side ramp grooves are correspondingly provided on the fixed rotary disk 220. An accommodating cavity is formed between each driving side ramp groove and the corresponding fixed side ramp groove, and a rolling ball 230 is correspondingly provided in the accommodating cavity. The rolling ball 230 can move along the ramp groove under the relative rotation drive of the driving side rotary disk 210 and the fixed rotary disk 220, thereby driving the driving side rotary disk 210 and the fixed rotary disk 220 to move relative to each other in the axial direction. The shape and structure of the driving side ramp groove and the fixed side ramp groove can be adjusted by the designer according to the use requirements, and no specific limitation is made here.

[0063] In an embodiment of the present invention, Figure 8 and Fig. 9 In the embodiment shown, a limiting structure is provided between the adjusting gear 120 and the rotating shaft 110, and the limiting structure includes a limiting key 410 arranged on the adjusting gear 120, and a slide groove 420 arranged on the rotating shaft 110, the slide groove 420 is extended along the axial direction of the rotating shaft 110, and the limiting key 410 and the slide groove 420 are slidably plugged into each other.

[0064] By arranging the limiting structure between the adjusting gear 120 and the rotating shaft 110, relative rotation between the adjusting gear 120 and the rotating shaft 110 is avoided, and the limiting structure can also make the adjusting gear 120 have axial adjustment flexibility, thereby avoiding affecting the movement of the driving side rotating disk 210. The designer can adjust the specific shape and structure of the limiting key 410 and the sliding groove 420 according to the use requirements, and no specific limitation is made here.

[0065] Furthermore, in order to improve the structural strength between the adjusting gear 120 and the rotating shaft 110, as Fig. 9 In the embodiment shown, a plurality of slide grooves 420 may be provided at intervals on the rotating shaft 110, and a plurality of limit keys 410 may be provided on the adjusting gear 120 accordingly, so that the connection strength between the two is improved by the coordination of the plurality of limit keys 410 and the slide grooves 420. The designer may determine the specific number of limit keys 410 and the slide grooves 420 according to the use requirements, and no specific numerical limit is imposed here.

[0066] In an embodiment of the present invention, Figure 3and Figure 6 In the illustrated embodiment, the shift mechanism 300 further includes a power device 340 , which can drive the adjustment rod 310 to switch between the first position and the second position.

[0067] The power device 340 can provide switching power for the adjusting rod 310 , so that the adjusting rod 310 can be switched between the first position and the second position, which has better flexibility in use.

[0068] In a feasible embodiment, the power device 340 includes an electromagnetic coil 341 and a permanent magnet 342 disposed on the adjustment rod 310 , and the permanent magnet 342 is movably inserted into the electromagnetic coil 341 .

[0069] Specifically, the axis of the electromagnetic coil 341 is parallel or substantially parallel to the axial direction of the rotating shaft 110 , and the permanent magnet 342 is disposed on one end of the adjusting rod 310 and is movably inserted into the electromagnetic coil 341 .

[0070] The driving action can be achieved by controlling the on and off state of the electromagnetic coil 341, so that the electromagnetic coil 341 can drive the adjustment rod 310 to switch from the first position to the second position, which has better control convenience.

[0071] Of course, in other feasible embodiments, designers can adjust the specific structure of the power device 340 according to usage requirements. For example, the power device 340 is a mechanical structure, which is not specifically limited here.

[0072] In an embodiment of the present invention, the shift mechanism 300 further includes a reset structure 500, such as Figure 2 and Figure 5 In the illustrated embodiment, the reset structure 500 can push the adjustment rod 310 to switch from the second position to the first position.

[0073] By setting the reset structure 500, the adjustment rod 310 can be pushed to automatically switch from the second position to the first position, so that the brake transmission mechanism can automatically switch from the brake clearance adjustment stage to the braking stage, avoiding the problem of brake failure caused by misoperation, thereby ensuring braking reliability.

[0074] In a feasible embodiment, the reset structure 500 includes a reset spring sleeved on the adjustment rod 310, one end of the reset spring is connected to the adjustment rod 310 or one end of the reset spring abuts against the shift gear 320, and the other end of the reset spring is fixed.

[0075] Of course, in other feasible embodiments, designers can adjust the specific structure of the reset structure 500 according to usage requirements. For example, the reset structure 500 includes an elastic block or an elastic rope, and no specific limitation is made here.

[0076] By setting the locking piece 330 on the adjusting rod 310, when the locking piece 330 is inserted into the driving tooth 211 of the driving side turntable 210, if there is rotational inertia on the driving side turntable 210, the driving side turntable 210 will transmit it to the adjusting rod 310 through the locking piece 330, so that the adjusting rod 310 will rotate, which will easily affect the shift gear 320 and the adjusting gear 120.

[0077] In order to avoid the above problems, in an embodiment of the present invention, Figure 2 In the illustrated embodiment, the shift mechanism 300 further includes a fixed anti-rotation rod 350, which is arranged parallel to the axis of the rotating shaft 110, and a slot matching the anti-rotation rod 350 is provided on the locking member 330, through which the locking member 330 is slidably connected to the anti-rotation rod 350.

[0078] By making the anti-rotation rod 350 parallel to the axial direction of the rotating shaft 110, the anti-rotation rod 350 and the adjusting rod 310 are also parallel to each other. When the locking member 330 is slidably connected to the anti-rotation rod 350 through the slot, the locking member 330 can be limited between the anti-rotation rod 350 and the adjusting rod 310, thereby avoiding the problem of the locking member 330 being affected by the driving side turntable 210 and rotating, thereby improving the structural stability of the adjusting rod 310.

[0079] In addition, the locking member 330 is provided with a locking portion capable of inserting the driving teeth 211. Designers can adjust the specific structure of the locking portion according to the use requirements, for example, the locking portion is configured as a tooth shape, which is not specifically limited here.

[0080] The parallel setting is not necessarily an absolute parallel setting, and the two can also be considered to be parallel within the allowable range of installation error.

[0081] In the embodiment of the present invention, the rotating shaft 110 and the driving side rotating disk 210 are in a non-self-locking configuration. By making the rotating shaft 110 and the driving side rotating disk 210 in a non-self-locking configuration, the problem of the driving side rotating disk 210 and the rotating shaft 110 being stuck can be avoided, which helps to improve the safety of use.

[0082] Specifically, Figure 7 and Fig. 9 In the embodiment shown, at least part of the outer wall of the rotating shaft 110 is provided with an external thread 111, and the driving side turntable 210 is provided with an internal thread 212. The driving side turntable 210 and the rotating shaft 110 are matched and connected through the external thread 111 and the internal thread 212. The spiral rise angle of the external thread 111 is greater than the equivalent friction angle of the external thread 111, so that the rotating shaft 110 and the driving side turntable 210 are non-self-locking.

[0083] By making the helical rise angle of the external thread 111 greater than the equivalent friction angle of the external thread 111, the problem of the thread being stuck during rotation can be avoided, thereby improving the smoothness of rotation of the driving side rotating disk 210 on the rotating shaft 110, thereby improving the reliability of the brake transmission mechanism. The designer can adjust the specific parameters of the external thread 111 according to the use requirements, and no specific restrictions are made here.

[0084] Of course, the designer can adjust the specific size relationship between the spiral rise angle and the equivalent friction angle according to the use requirements, and no specific limitation is made here. For example, in another feasible embodiment, the spiral rise angle is equal to the equivalent friction angle. In another feasible embodiment, the spiral rise angle is less than the equivalent friction angle.

[0085] Implementation Method 2

[0086] An embodiment of the present invention provides an electronically controlled brake, which includes the brake force transmission mechanism described in Embodiment 1. The brake force transmission mechanism in this embodiment is the same as the brake force transmission mechanism described in Embodiment 1 in terms of specific structure, working principle and beneficial effects, which will not be described in detail here.

[0087] In an embodiment of the present invention, the electric controller further includes a housing, and the brake force transmission mechanism can be arranged in the housing and placed inside the brake pad. Specifically, the fixed rotary disc 220 is fixed in the housing, and the driving side rotary disc 210, the rotating shaft 110, the adjusting gear 120, and the shifting mechanism 300 are adjustably arranged in the housing. The designer can adjust the specific shape and structure of the housing according to the use requirements, and no specific limitation is made here.

[0088] In an embodiment of the present invention, the electronically controlled brake further comprises a control module, the control module is electrically connected to the brake force transmission mechanism, and the control module is used to control the adjustment member of the brake force transmission mechanism to switch between the first position and the second position.

[0089] By electrically connecting the control module to the brake force transmission mechanism, the control module can be used to control the adjustment member of the brake force transmission mechanism to switch between the first position and the second position.

[0090] Specifically, the control module is electrically connected to the electromagnetic coil 341 of the brake force transmission mechanism. The control module adjusts the magnetic force of the electromagnetic coil 341 through current to switch the adjustment member from the first position to the second position, so that the electric control brake switches from the braking stage to the brake clearance adjustment stage.

[0091] The designer can adjust the specific model structure of the control module according to the use requirements, and no specific restrictions are made here. For example, the control module is a control circuit board, a computer or a PLC controller.

[0092] In an embodiment of the present invention, the electronically controlled brake further comprises a driving device, and the driving device is transmissionably connected to the shift gear 320 of the brake force transmission mechanism.

[0093] By utilizing the driving device to drive the shift gear 320 to rotate, when the adjusting rod 310 is in the first position, the shift gear 320 is meshed with the adjusting gear 120 and the driving teeth 211 of the driving side turntable 210, so that the driving device can drive the adjusting gear 120 and the driving side turntable 210 to rotate at the same time through the shift gear 320, thereby achieving a braking effect.

[0094] When the adjusting rod 310 is in the second position, the shifting gear 320 is meshed with the adjusting gear 120, and the driving teeth 211 of the driving side turntable 210 are meshed with the locking member 330, so that the driving device can drive the adjusting gear 120 to rotate through the shifting gear 320, and the adjusting gear 120 rotates synchronously with the rotating shaft 110 so that the rotating shaft 110 can be axially adjusted, thereby adjusting the axial position of the friction plate connected to the rotating shaft 110 to adjust the braking clearance.

[0095] The designer can adjust the specific structure of the driving device according to the use requirements, and no specific limitation is made here. Preferably, the driving device includes a driving motor and a transmission gear arranged on the output shaft of the driving motor, and the transmission gear can be transmission-engaged with the shift gear 320.

[0096] Implementation Method 3

[0097] The embodiment of the present invention also discloses a vehicle, which includes the electronically controlled brake as described in Embodiment 2. The electronically controlled brake in this embodiment has the same specific structure, working principle and beneficial effects as those in Embodiment 2, and will not be described in detail here.

[0098] The vehicle can switch the electronically controlled brake to the braking stage or the brake clearance adjustment stage by applying the electronically controlled brake. In the brake clearance adjustment stage, the brake clearance of the friction plate can be adjusted so that the braking stroke of the friction plate can meet the braking needs, reducing or avoiding the influence of insufficient braking force on the braking effect, ensuring the stability of the braking efficiency control, thereby reducing the frequency of vehicle maintenance and improving the user experience.

[0099] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0100] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the present invention. The purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A brake force transmission mechanism, characterized in that: include: a first transmission mechanism, the first transmission mechanism comprising a first driving side and a first output side, the first output side being used to drive the braking component to move; a second transmission mechanism, wherein at least a portion of a movement area of ​​the second transmission mechanism is non-self-locking, the second transmission mechanism comprises a second driving side and a second output side, and the first output side is adjustably arranged on the second output side; A shift mechanism, the shift mechanism includes a first position and a second position. When the shift mechanism is in the first position, the shift mechanism can be transmission-connected to the first drive side and the second drive side, and the shift mechanism can transmit power to drive the first transmission mechanism and the second transmission mechanism to move in a preset direction; when the shift mechanism is in the second position, the shift mechanism can be transmission-connected to the first drive side and lock the second transmission mechanism, and the shift mechanism can transmit power to drive the first transmission mechanism to move in the preset direction.

2. The brake force transmission mechanism according to claim 1, characterized in that: The first transmission mechanism includes a threaded mechanism, which includes a rotating shaft and an adjusting gear sleeved on the rotating shaft. The adjusting gear constitutes the first driving side, and the rotating shaft constitutes the first output side. The rotating shaft is used to drive the braking component to move. The adjusting gear can slide along the axial direction of the rotating shaft and be limited circumferentially with the rotating shaft. When the shift mechanism is in the first position or the second position, the shift mechanism can be transmission-connected to the adjusting gear.

3. The brake force transmission mechanism according to claim 2, characterized in that: The second transmission mechanism includes a ball ramp structure, which includes a driving side turntable, a fixed turntable, and a plurality of balls arranged between the driving side turntable and the fixed turntable, the driving side turntable is connected to the rotating shaft by a thread, the internal thread of the driving side turntable constitutes the second output side, the fixed turntable and the adjusting gear are arranged on both sides of the driving side turntable opposite to each other, and the outer wall of the driving side turntable is annularly provided with driving teeth, and the driving teeth constitute the second driving side; when the shift mechanism is in the first position, the shift mechanism can be transmission-connected to the driving teeth; when the shift mechanism is in the second position, the shift mechanism locks the driving teeth.

4. The brake force transmission mechanism according to claim 3, characterized in that: The shift mechanism includes a movably adjustable rod, a shift gear rotatably connected to the adjustable rod, and a locking member arranged on the adjustable rod, wherein the adjustable rod includes a first position in a braking stage and a second position in a braking clearance adjustment stage; when the adjustable rod is in the first position, the shift gear is transmissionably engaged with the adjusting gear and the driving tooth; when the adjustable rod is in the second position, the locking member is engaged with the driving tooth, and the shift gear is engaged with the adjusting gear.

5. The brake force transmission mechanism according to claim 3, characterized in that: A limiting structure is provided between the adjusting gear and the rotating shaft, and the limiting structure includes a limiting key arranged on the adjusting gear and a slide groove arranged on the rotating shaft, the slide groove is extended along the axial direction of the rotating shaft, and the limiting key and the slide groove are slidably plugged into each other.

6. The brake force transmission mechanism according to claim 4, characterized in that: The shift mechanism further includes a power device, which can drive the adjustment rod to switch between the first position and the second position.

7. The brake force transmission mechanism according to claim 6, characterized in that: The power device comprises an electromagnetic coil and a permanent magnet arranged on the adjusting rod, and the permanent magnet is movably inserted in the electromagnetic coil.

8. The brake force transmission mechanism according to claim 4, characterized in that: The shift mechanism further includes a reset structure, and the reset structure can push the adjustment rod to switch from the second position to the first position.

9. The brake force transmission mechanism according to claim 8, characterized in that: The reset structure comprises a reset spring sleeved on the adjusting rod, one end of the reset spring is connected to the adjusting rod or one end of the reset spring abuts against the shifting gear, and the other end of the reset spring is fixedly arranged.

10. The brake force transmission mechanism according to claim 4, characterized in that: The shift mechanism also includes a fixed anti-rotation rod, which is arranged parallel to the axial direction of the rotating shaft. The locking member is provided with a slot matching the anti-rotation rod, and the locking member is slidably connected to the anti-rotation rod through the slot.

11. The brake force transmission mechanism according to claim 3, characterized in that: The rotating shaft and the driving side rotating disk are arranged in a non-self-locking manner.

12. The brake force transmission mechanism according to claim 11, characterized in that: At least part of the outer wall of the rotating shaft is provided with an external thread, and the driving side rotating disk is provided with an internal thread. The driving side rotating disk and the rotating shaft are matched and connected through the external thread and the internal thread. The spiral rise angle of the external thread is greater than the equivalent friction angle of the external thread, so that the rotating shaft and the driving side rotating disk are non-self-locking.

13. The brake force transmission mechanism according to claim 3, characterized in that: The driving side rotating disk and / or the fixed rotating disk are provided with ramp grooves, and at least part of the ramp grooves are non-self-locking.

14. An electronically controlled brake, characterized in that: The invention comprises a brake force transmission mechanism as claimed in any one of claims 1 to 13.

15. The electronically controlled brake according to claim 14, characterized in that: The electronically controlled brake further comprises a control module, wherein the control module is electrically connected to the brake force transmission mechanism, and the control module is used for controlling the adjustment member of the brake force transmission mechanism to switch between a first position and a second position.

16. The electronically controlled brake according to claim 14, characterized in that: The electric control brake further comprises a driving device, and the driving device is transmissionably connected to the shift gear of the brake force transmission mechanism.

17. A vehicle, characterized in that: Comprising the electronically controlled brake as claimed in any one of claims 14 to 16.

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