CN108657360B - Locking mechanism based on expansion brake and locking control method thereof - Google Patents
Locking mechanism based on expansion brake and locking control method thereof Download PDFInfo
- Publication number
- CN108657360B CN108657360B CN201710202195.1A CN201710202195A CN108657360B CN 108657360 B CN108657360 B CN 108657360B CN 201710202195 A CN201710202195 A CN 201710202195A CN 108657360 B CN108657360 B CN 108657360B
- Authority
- CN
- China
- Prior art keywords
- brake
- locking
- control
- rod
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 160
- 230000009471 action Effects 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a locking mechanism based on an expansion brake and a locking control method thereof, wherein the locking mechanism comprises a brake transmission rod, a brake control rod and a locking control rod; the brake transmission rod, the brake control rod and the locking control rod are respectively hinged in a brake shell of the expansion brake, wherein one non-hinge point position on the brake transmission rod is connected with a brake transmission mechanism for controlling the brake skin of the expansion brake to expand towards the inner ring of the brake disc, and the brake transmission rod is detachably assembled with the brake control rod and the locking control rod at other non-hinge point positions through a brake control structure and a locking control structure; the brake control rod is connected with an external brake control component; the locking control rod is connected with the locking driving assembly; the brake control rod and the locking control rod respectively control the brake skin connected with the brake transmission rod through leverage to realize braking and locking. The invention combines the braking mechanism of the expansion brake with the locking mechanism, and can be widely popularized and applied to public bicycles such as shared bicycles.
Description
Technical Field
The invention belongs to a locking mechanism based on wheel brakes, and particularly relates to a locking mechanism based on an expansion brake and a locking control method thereof.
Background
The bicycle brake includes various kinds, and the expansion brake is one kind through the brake between steel band brake skin and the brake disc through the friction that rises. The expansion brake is arranged in the brake shell in a closed way, the braking mode is reliable, the cost is low, and the expansion brake is widely applied to public bicycles. With the appearance of sharing bicycle, this kind can be along with borrowing still public bicycle travel mode to receive more and more people's the tourbillon, but how to realize the quick convenient locking of bicycle and unlocking is a difficult problem that sharing bicycle faced, and outside locking mechanism needs to set up fixed area alone on the bicycle automobile body, and is unsightly to be destroyed easily.
Disclosure of Invention
The invention solves the technical problems that: aiming at the defects of the external locking mechanism of the existing bicycle, the locking mechanism for the expansion brake and the locking control method thereof are provided.
The invention is realized by adopting the following technical scheme:
the locking mechanism based on the expansion brake comprises a brake transmission rod, a brake control rod and a locking control rod;
the brake transmission rod, the brake control rod and the locking control rod are respectively hinged in a brake shell of the expansion brake, wherein one non-hinged point position on the brake transmission rod is connected with a brake transmission mechanism for controlling the brake skin of the expansion brake to expand towards the inner ring of the brake disc, and the brake transmission rod is detachably assembled with the brake control rod and the locking control rod at other non-hinged point positions through a brake control structure and a locking control structure; one of the non-hinge point positions on the brake control rod is connected with the brake transmission rod through the brake control structure, and the other non-hinge point positions are connected with an external brake control part; one of the non-hinge point positions on the locking control rod is connected with the brake transmission rod through the locking control structure, and the other non-hinge point positions are connected with the locking driving assembly; the brake control rod and the locking control rod control the brake skin connected with the brake transmission rod through lever action to realize braking and locking.
Further, the brake transmission rod, the brake control rod and the locking control rod are mutually overlapped, the brake control structure and the locking control structure are protrusions and edges which are mutually contacted on adjacent overlapped rod pieces, and the protrusions are arranged on one of the adjacent overlapped rod pieces to be in contact with the edges of the other rod piece.
Preferably, the protrusions adopt a roller structure.
Further, the locking control rod is connected with the locking driving assembly through a control spring, and the braking control rod is elastically hinged.
In a preferred embodiment of the invention, the locking drive assembly comprises a locking motor and an eccentric, the locking motor being fixedly mounted in the brake housing, the motor output shaft being connected to the control spring via the eccentric.
In another preferred scheme of the invention, the locking driving assembly comprises a locking motor, a screw rod and a control nut, wherein the locking motor is fixedly arranged in the brake shell, an output shaft of the motor is connected with the screw rod, the control nut is in threaded connection with the screw rod and is guided and limited along the length direction of the screw rod, and the control nut is connected with the control spring.
Further, the locking mechanism in the two schemes further comprises a control module, wherein the control module is fixed in the brake shell in the form of an integrated control plate and comprises a controller which is communicated with the locking motor control circuit through signals and a communication module which receives external locking control signals.
Further, the control module is communicated with a rotation speed sensor of the wheel connected with the expansion brake through signals.
Preferably, the rotating speed sensor is a magnetic steel and a Hall sensor which are respectively arranged on the brake disc and the brake shell.
The brake transmission mechanism of the expansion brake comprises a brake pad integrally arranged with a brake skin of the expansion brake and a brake transmission block for driving the brake pad to expand towards a brake disc; the brake pad is arranged in parallel with one radial sliding mode of the inner ring of the brake disc, and is kept away from the inner ring of the brake disc through a first return spring, and the outer side of the brake pad is provided with a brake skin installation arc section which is matched with the inner ring of the brake disc; the brake transmission block is arranged in a sliding mode along the other radial direction of the inner ring of the brake disc, is connected with the brake transmission rod, keeps a tensioning state of the brake transmission rod through a second return spring, and is provided with a control surface for pushing the brake block to move towards the inner ring of the brake disc along the sliding direction of the brake transmission block.
Further, the two groups of brake blocks are symmetrically arranged on the same radial direction of the inner ring of the brake disc, the brake transmission blocks are arranged in a sliding mode along the perpendicular bisectors of the two groups of brake blocks, and control surfaces for respectively controlling the two groups of brake blocks are arranged on two sides of the brake transmission blocks.
Preferably, the brake pad is provided with a brake roller which is in contact with the control surface of the brake transmission block.
The invention further discloses a locking control method of the locking mechanism based on the expansion brake, wherein a protection rotating speed is set in the locking control process, and when the rotating speed sensor monitors that the real-time rotating speed of the wheels connected with the brake is lower than the protection rotating speed, the locking motor drives the locking control rod to pull the brake transmission rod and the brake transmission mechanism to brake the expansion brake by receiving an external locking control signal, and the expansion brake is kept in a braking state; when the real-time rotating speed of the brake connecting wheel exceeds the protection rotating speed, the locking motor does not execute an external locking control signal and keeps the locking control signal, and when the real-time rotating speed is lower than the protection rotating speed, locking is executed.
According to the invention, the braking mechanism of the expansion brake is combined with the locking mechanism, so that the braking transmission mechanism of the expansion brake is optimized, the braking and locking operations of the wheels can be realized through the expansion brake respectively through the external braking control component and the locking driving component, the braking and locking actions are not mutually influenced, the locking state cannot be influenced through the braking operations, the locking reliability of the locking mechanism is ensured, the safe operation of the locking mechanism is ensured through the locking control method, and the false locking operation in the wheel rotation process is avoided. Can be widely popularized and applied to public bicycles such as sharing bicycles.
In addition, even if the locking signal misoperation occurs in the driving process, the locking control mechanism controls the brake pad on the brake pad to be attached to the inner ring of the brake disc, the vehicle can be decelerated firstly, and then is locked when the speed is stopped, and the sudden stop phenomenon in the driving process can not occur.
The invention is further described below with reference to the drawings and detailed description.
Drawings
Fig. 1 is a schematic structural view of a locking mechanism provided on an expansion brake in embodiment 1, which is in a brake free state.
Fig. 2 is a schematic diagram showing the transmission of the locking mechanism in embodiment 1 with the brake pad removed.
Fig. 3 is a schematic structural diagram of a brake shoe in embodiment 1.
Fig. 4 is a schematic view of the structure of a brake pad in embodiment 1.
Fig. 5 is a schematic diagram of the brake transmission lever structure in embodiment 1.
Fig. 6 is a schematic view of the brake lever structure in embodiment 1.
Fig. 7 is a schematic view of the structure of the lock lever in embodiment 1.
Fig. 8 is a schematic diagram showing a locked state of the expansion brake in embodiment 1 controlled by a lock lever.
Fig. 9 is a schematic diagram showing a braking state in which the expansion brake in embodiment 1 is controlled by a brake lever.
Fig. 10 is a schematic structural view of a locking mechanism provided on the expansion brake in embodiment 2, which is a brake free state.
Fig. 11 is a schematic diagram showing the transmission of the locking mechanism in embodiment 2 with the brake pad removed.
Fig. 12 is a schematic view of the brake lever structure in embodiment 2.
Fig. 13 is a schematic view of the structure of a brake lever in embodiment 2.
Fig. 14 is a schematic view of the structure of the lock lever in embodiment 2.
Fig. 15 is a schematic diagram showing a locked state of the expansion brake in embodiment 2 controlled by a lock lever.
Fig. 16 is a schematic diagram showing a braking state in which the expansion brake in embodiment 2 is controlled by a brake lever.
Fig. 17 is a schematic structural diagram of a locking mechanism provided on the expansion brake in embodiment 3.
Reference numerals in the drawings:
11-brake disc, 12-brake skin, 121-guide post, 122-guide slot, 13-brake pad, 131-brake roller, 1311-roller mounting hole, 132-first return spring mounting position, 133-brake cam, 14-brake transmission lever, 141-second brake control structure, 142-second lock control structure, 143-brake transmission lever hinge hole, 144-brake transmission lever connecting hole, 15-brake control lever, 151-first brake control structure, 152-external pull wire connecting hole, 153-brake control lever hinge hole, 16-brake hinge shaft, 17-return torsion spring, 171-first return spring, 172-second return spring, 18-brake transmission lever, 181-control surface, 182-through slot, 183-second return spring mounting position, 184-brake transmission lever connecting hole, 19-link,
21-a frame, 22-a wheel axle, 23-a brake housing,
31-locking control rod, 311-first locking control structure, 3111, 1411-roller mounting hole, 312-control spring connecting hole, 313-locking control rod hinge hole, 32-control spring, 33-eccentric wheel, 34-locking motor, 35-motor base, 36-motor cover, 37-screw rod, 38-control nut,
41-magnetic steel, 42-Hall sensor,
5-a control module.
Detailed Description
Example 1
Referring to fig. 1 and 2, the bicycle expansion brake is shown as a preferred embodiment of the present invention, wherein the expansion brake comprises a brake disc 11, a brake skin 12, a brake pad 13, a brake actuator lever 14, a brake lever 15, a brake hinge shaft 16, a return torsion spring 17 and a brake housing 23. The brake shell 23 is fixed on the frame 21, the wheel shaft 22 passes through the brake shell 23 and is assembled with the brake shell 23 in a rotating way through a rotary mounting piece, the brake disc 11 is positioned in the brake shell 23 and is fixedly assembled with a hub sleeved on the wheel shaft 22 in a rotating way, and the synchronous rotation of the wheel connected with the brake disc 11 and the hub is realized. The brake disc 11 is provided with an inner ring for friction braking, the brake pad 12 and the brake pad 13 are integrally arranged on the inner side of the inner ring of the brake disc 11, and the brake pad 13 is connected with the brake transmission rod 14 through the brake transmission block 18 to drive the brake pad 12 to expand and press and rub to the inner ring of the brake disc.
As shown in fig. 3 and 4, the brake pad 13 is arranged parallel to one radial direction of the inner ring of the brake disc 11 in a sliding manner, two groups of bar-shaped guide posts 121 which are arranged in parallel are arranged on the brake housing 23 of the inner ring of the brake disc 11, two groups of bar-shaped guide slots 122 are correspondingly arranged on the brake pad 13, the brake pad 13 is arranged on the brake housing 23 in a sliding manner through the guide slots 122 and the guide posts 121 which are in sliding engagement, the sliding direction of the brake pad 13 is arranged along one radial direction of the inner ring of the brake disc 11, the brake pad 13 is connected and kept away from the inner ring of the brake disc through a first return spring 171, in the braking process, the brake transmission block 18 overcomes the elasticity of the first return spring 171 to drive the brake pad 13 and the brake pad 12 to be extruded towards the inner ring of the brake disc, an arc edge which is matched with the inner ring of the brake disc is arranged on the outer side of the brake pad 13, the brake pad 12 is fixedly attached to the arc edge, and friction materials are adopted between the brake pad and the inner ring of the brake disc, and the brake disc 11 and the wheel shaft 22 are braked.
In practical application, a set of brake pads 13 may be adopted, or two sets of brake pads 13 symmetrically arranged along the same radial direction may be adopted in this embodiment, the two sets of brake pads 13 are connected through two sets of first return springs 171, a protruding first return spring mounting position 132 is provided on the brake pad 13, and is used for hooking the first return springs 171, the brake transmission pad 18 is radially slidingly assembled on the brake housing 23 between the two sets of brake pads 13 along the inner ring of the other brake disc, a through groove 182 avoiding the wheel axle is provided on the brake transmission pad 18, the sliding direction of the brake transmission pad 18 is perpendicular to the sliding direction of the brake pad 13, control surfaces 181 contacting with the brake pads 13 are symmetrically provided on two side edges of the brake transmission pad 18, the control surfaces 181 are inclined planes with varying distance between the opposite brake pads, and during the sliding process of the brake transmission pad 18, the brake pad 13 is pushed to expand and squeeze along the radial direction of the inner ring of the brake disc by the control surfaces 181. The brake transmission block 18 has a brake transmission rod connection hole 184 provided at one end thereof and hinged to the brake transmission rod 14, and a second return spring mounting position 183 provided at the other end thereof and connected to the brake housing 23 via a second return spring 172, the second return spring 172 maintaining a state of tension on the brake transmission rod 14 and providing a return force to the brake transmission block 18.
In order to improve the contact reliability between the brake transmission block 18 and the brake pad 13, the brake pad 13 is provided with a roller mounting hole 1311, the brake pad 13 is provided with a brake roller 131 through the roller mounting hole 1311, and the brake roller 131 is in rolling contact with the control surface of the brake transmission block 18, so that the abrasion between the brake roller 131 and the brake pad is reduced.
The brake transmission rod 14 is hinged in the brake shell 23 through a brake hinge shaft 16, a brake control rod 15 is hinged in the brake shell 23, the brake control rod 15 is connected with an external brake control component, and the tension of the brake skin during braking is provided through leverage.
The brake transmission lever 14 and the brake control lever 15 are structured as shown in fig. 5 and 6, the end portion of the brake transmission lever 14 is provided with a brake transmission lever hinge hole 143, and the brake transmission lever 14 is hinge-mounted with the brake hinge shaft 15 fixed in the brake housing 23 through the brake transmission lever hinge hole 143, and both side edges of the brake transmission lever 14 away from the hinge position are respectively brought into contact with the brake control lever 15 and the lock control lever 31 as a second brake control structure 141 and a second lock control structure 142, and the other end of the brake control lever away from the hinge position is further provided with a brake transmission block connecting hole 144 for hinge-connecting with the brake transmission block.
The end of the brake lever 15 is also provided with a brake lever hinge hole 153, the brake lever 15 is mounted coaxially with the brake transmission lever 14 by the brake lever hinge hole 153, and the brake lever 15 may be hinged at other positions in the brake housing 23. The other end of the brake lever 15, remote from the hinge position, is provided with an external wire attachment hole 152 for attachment to an external brake control member, such as a brake wire of a bicycle. The side between the external stay wire connecting hole 152 and the brake control rod hinging hole 153 is provided with a first brake control structure 151 contacted with the brake transmission rod 14, the brake stay wire pulls the brake control rod 15 to swing, the brake transmission rod 14 is driven to swing through the first brake control structure 151 and the second brake control structure 141, and the other end of the brake transmission rod 14 pulls the brake transmission block 18 through leverage, so that the brake pad 13 and the brake skin 12 are expanded and extruded towards the inner ring of the brake disc together.
The brake transmission lever 14 and the brake control lever 15 are both hinged on the control hinge shaft 16, wherein the brake control lever 15 is provided with a return torsion spring 17, the return torsion spring 17 acts on the brake control lever 15 to control the return of the brake transmission lever 14, and the return of the brake transmission lever 14 is realized by a second return spring 172 through a brake transmission block 18.
A locking lever 31 is also hinged in the brake housing 23 for controlling the braking state between the brake skin and the brake disc to achieve locking. The structure of the locking control rod 31 is shown in fig. 7, and referring to fig. 1, 2 and 7 in a combined mode, a locking control rod hinge hole 313 is formed in the bottom end of the locking control rod 31, the locking control rod 31 is hinged in the brake shell 23 through the locking control rod hinge hole 313, the locking control rod 31 is not coaxially hinged with the brake transmission rod 14 and the brake control rod 15, a control spring connecting hole 312 is formed in the other end of the locking control rod 31, the control spring connecting hole 312 is connected with a control spring 32, the locking control rod 32 is connected with a locking driving assembly through the control spring 32, a first locking control structure 311 is arranged between the control spring connecting hole 312 and the locking control rod 31, the first locking control structure 311 is in contact with a second locking control structure 142 on the brake transmission rod 14, the locking driving assembly pulls the locking transmission rod 14 through the first locking control structure 311 and the second locking control structure 142, the other end of the locking transmission rod 14 pulls the brake transmission block 18 through lever action, and further realizes that the brake block 13 and the skin 12 are pressed towards the brake disc 11, and the brake disc 11 is always pressed between the brake disc 13 and the brake disc 12 through the pressing position of the locking transmission rod driving assembly.
For convenience in processing, the brake transmission lever 14, the brake control lever 15 and the lock control lever 31 in this embodiment are all stamped plate-shaped levers, "levers" refer to the principle of leverage achieved by hinging, and in practical application, the brake transmission lever 14, the brake control lever 15 and the lock control lever 31 may also be plate members with lever functions or members with other structural forms.
The brake transmission rod 14, the brake control rod 15 and the locking control rod 31 are mutually overlapped, and the brake control structure and the locking control structure which are arranged among the brake transmission rod 14, the brake control rod 15 and the locking control rod 31 are mutually contacted convex structures and edge structures on adjacent overlapped rods. In this embodiment, the second brake control structure 141 on the brake transmission rod 14 is a protruding block protruding from a side edge of the brake transmission rod, and the corresponding first brake control structure 151 on the brake control rod 15 is a side edge of the brake control rod, and the side edge pushes the protruding block on the brake transmission rod 14 to realize brake control; the second locking control structure 142 on the brake transmission rod 14 is the other side edge of the brake transmission rod, the corresponding first locking control structure 311 arranged on the lock transmission rod 31 is a roller protruding from the lock transmission rod, the roller is arranged in the roller mounting hole 3111 of the lock transmission rod 31 through a shaft, and the roller rolls to push the side edge on the brake transmission rod 14 to realize locking control. The roller can reduce the abrasion between the locking control structures and improve the smoothness of operation, and the roller can be applied to the braking control structure.
In this embodiment, the brake control structures and the locking control structures are both separable structures, that is, in the braking process, when the brake control structures push, the locking control structures are separated, otherwise, in the locking process, when the locking control structures push, the brake control structures are separated, the normal braking function is not affected by the locking control, meanwhile, the locking state is not affected by the braking operation, the locking is prevented from being contacted by the braking operation after the locking, and the reliability of the locking is improved.
Referring to fig. 1 and 2, the locking driving assembly in this embodiment includes an eccentric wheel 33 and a locking motor 34, the locking motor 34 is fixedly disposed in the brake housing 23 through a motor seat 35 and a motor cover 36, a motor shaft of the locking motor 34 is in transmission connection with the eccentric wheel 33, an eccentric position of the eccentric wheel 33 is connected with a control spring 32, the eccentric wheel 33 is driven to rotate by the locking motor 34, the control spring 32 is stretched, and the locking control rod 31 is pulled under the elastic force of the control spring 32. The lock motor 34 has a self-locking function.
The eccentric wheel 33 is provided with a convex block, when the motor drives the eccentric wheel to rotate to a locking state, the arc-shaped clearance on the control spring falls onto the convex block of the eccentric wheel, so that the load action of the spring tension on the motor is effectively avoided.
The principle of the braking and locking action of the present embodiment is described in detail below with reference to fig. 1, 8 and 9.
In fig. 1, a certain gap is maintained between the brake pad 12 and the brake disc 11 under the tension of the first return spring 171, at this time, the brake transmission lever 14 and the brake control lever 15 are maintained in an initial state under the action of the return torsion spring 17 and the brake transmission block 18 is maintained under the action of the second return spring 172, and at the same time, the locking motor does not receive an external locking control signal, and the locking control lever 31 is not pulled.
In fig. 8, the locking motor 34 rotates to drive the eccentric wheel 33 to rotate, the eccentric wheel 33 pulls the locking control rod 31 to swing around the twisting pivot point through the control spring 32, the first locking control structure 311 on the eccentric wheel pushes the second locking control structure 142 of the brake transmission rod 14, the brake transmission rod 14 is driven to swing through leverage, the brake transmission rod 14 pulls the brake transmission block 18 through leverage, and further the brake pad 13 and the brake pad 12 are expanded and extruded towards the inner ring of the brake disc together, and the brake pad 12 and the brake disc 11 are pressed and braked. The locking motor 34 has a self-locking function, the brake pad 13 and the brake pad 12 can be automatically kept in a pressed state on the brake disc 11 by positioning the brake transmission block 18, the tension force of the brake pad on the brake disc is controlled by the elastic force of the control spring 32, and in the process of pushing the brake transmission rod 14 by the locking control rod 31, the first brake control structure 151 and the second brake control structure 141 between the brake control rod 15 and the brake transmission rod 14 are automatically separated, and at the moment, the locking state of the brake cannot be influenced by operating the brake control rod 15 through an external brake control component. When the rotation of the locking motor releases the locking, the brake transmission block 18 retreats under the action of the second return spring 172, drives the brake transmission rod 14 to swing back, drives the locking control rod 31 to return at the same time, the brake transmission block 18 retreats under the action of the second return spring 172, the brake pad 13 retreats inwards under the action of the second return spring 172, and the brake skin 12 is separated from the brake disc 11.
In fig. 9, an external brake control part (pull wire) pulls the brake control rod 15, a first brake control structure 151 on the brake control rod pulls a second brake control structure 141 of the brake transmission rod 14, the brake transmission rod 14 is driven to swing through leverage, the brake transmission rod 14 pulls the brake transmission block 18 through leverage, further the brake block 13 and the brake skin 12 are expanded and extruded towards the inner ring of the brake disc together, the brake skin 12 and the brake disc 11 are pressed tightly for braking, after the acting force of the external brake control part (pull wire) is eliminated, the brake transmission block 18 is retracted under the action of a second return spring 172, the brake transmission rod 14 is driven to swing back, meanwhile, the brake control rod 15 is driven to return, the brake transmission block 18 is retracted under the action of the second return spring 172, the brake block 13 is retracted inwards under the action of the second return spring 172, and the brake skin 12 is separated from the brake disc 11.
Example 2
Referring to fig. 10 to 16, the present embodiment is different from embodiment 1 in that: the locking driving assembly in this embodiment includes a locking motor 34, a screw rod 37 and a control nut 38, the locking motor 34 is fixedly installed in the brake housing 23 through a motor base 35 and a motor cover 36, a motor output shaft of the locking motor 34 is connected with the screw rod 37, the control nut 38 is screwed on the screw rod 37 and is guided and limited in the brake housing 23 along the length direction of the screw rod through other guiding assembly parts behind the sliding rail, and the control nut 38 is connected with the control spring 32.
In addition, referring to fig. 10 to 14 in combination, the brake control structure between the brake control lever 15 and the brake transmission lever 14 and the lock control structure between the lock control lever 31 and the brake transmission lever 14 are also different from embodiment 1. In this embodiment, the second brake control structure 141 and the second locking control structure 142 on the brake transmission rod 14 are the same structure, that is, are rollers protruding from the brake transmission rod 14, the rollers are assembled on the brake transmission rod 14 through the roller mounting holes 1411, the first brake control structure 151 on the brake control rod 15 and the first locking control structure 311 on the locking control rod 31 are corresponding sides on the rod respectively, and the roller setting height on the brake transmission rod 14 should ensure that the sides of the brake control rod 15 and the locking control rod 31 stacked above in sequence can be effectively contacted. Meanwhile, the roller mounting hole 1411 is also used as a brake transmission block connecting hole 144, and the roller is rotatably assembled in the roller mounting hole 1411 through a pin shaft and is hinged with a brake transmission rod connecting hole of the brake transmission block 18.
The principle of the braking and locking action of the present embodiment is specifically described below with reference to fig. 10, 15 and 16.
In fig. 10, a certain gap is maintained between the brake pad 12 and the brake disc 11 under the tension of the first return spring 171, at this time, the brake transmission lever 14 and the brake control lever 15 are maintained in an initial state under the action of the return torsion spring 17 and the brake transmission block 18 is maintained under the action of the second return spring 172, and at the same time, the locking motor does not receive an external locking control signal, and the locking control lever 31 is not pulled.
In fig. 15, the locking motor 34 rotates to drive the screw rod 37 to rotate, the control nut 38 screwed on the screw rod 37 stretches the control spring 32 along the screw rod direction under the action of the screw transmission, the control spring 32 pulls the locking control rod 31 to swing around the twisting pivot point of the locking control rod, the first locking control structure 311 on the control spring pulls the second locking control structure 142 of the brake transmission rod 14 to swing, the brake transmission rod 14 is driven to swing through leverage, the brake transmission rod 14 pulls the brake transmission block 18 through leverage, and further the brake pad 13 and the brake pad 12 expand and squeeze together towards the inner ring of the brake disc, and the brake pad 12 and the brake disc 11 are compressed and braked. The locking motor 34 has a self-locking function, the brake pad 13 and the brake pad 12 can be automatically kept in a pressed state on the brake disc 11 by positioning the brake transmission block 18, the tension force of the brake pad on the brake disc is controlled by the elastic force of the control spring 32, and in the process of pushing the brake transmission rod 14 by the locking control rod 31, the first brake control structure 151 and the second brake control structure 141 between the brake control rod 15 and the brake transmission rod 14 are automatically separated, and at the moment, the locking state of the brake cannot be influenced by operating the brake control rod 15 through an external brake control component. When the rotation of the locking motor releases the locking, the brake transmission block 18 retreats under the action of the second return spring 172, drives the brake transmission rod 14 to swing back, drives the locking control rod 31 to return at the same time, the brake transmission block 18 retreats under the action of the second return spring 172, the brake pad 13 retreats inwards under the action of the second return spring 172, and the brake skin 12 is separated from the brake disc 11.
In fig. 16, an external brake control part (pull wire) pulls the brake control rod 15, a first brake control structure 151 on the brake control rod pulls a second brake control structure 141 of the brake transmission rod 14, the brake transmission rod 14 is driven to swing through leverage, the brake transmission rod 14 pulls the brake transmission block 18 through leverage, further the brake block 13 and the brake skin 12 are expanded and extruded towards the inner ring of the brake disc together, the brake skin 12 and the brake disc 11 are pressed tightly for braking, after the acting force of the external brake control part (pull wire) is eliminated, the brake transmission block 18 is retracted under the action of a second return spring 172, the brake transmission rod 14 is driven to swing back, meanwhile, the brake control rod 15 is driven to return, the brake transmission block 18 is retracted under the action of the second return spring 172, the brake block 13 is retracted inwards under the action of the second return spring 172, and the brake skin 12 is separated from the brake disc 11.
Example 3
The expanding brake in this embodiment can also adopt the existing expanding brake structure in fig. 17, two groups of brake blocks 13 with arc structures are adopted, the same end of each brake block 13 is fixedly hinged on a brake shell 23 of the inner ring of the brake disc, the other end of one brake block 13 is movably hinged on the brake shell, the other end of the brake block 13 is tightly tensioned with the other brake block 13 through a first return spring 171, a brake cam 133 is hinged at one end of one brake block 13 through a second return spring 172, and the cam surface at one end of the brake cam 133 is contacted with the other brake block 13, and the other end of the brake cam extends and is connected with a brake transmission rod 14 through a connecting rod 19. In a free state, the low position of the brake cam 133 is in contact with the brake pad, a certain gap exists between the brake skin 12 and the inner ring of the brake disc 11, and when in braking or locking action, the brake transmission rod 14 pulls the connecting rod 19 through the lever to drive the brake cam 133 to rotate, the high position of the brake cam 133 is in contact with the brake pad, so that the brake pad 13 is pushed to expand outwards against the elastic force of the first return spring 171, and the brake skin 12 on the brake pad and the inner ring of the brake disc 11 are extruded to form friction braking.
The expansion brake having such a structure can employ the locking mechanism of embodiment 1 and embodiment 2, respectively.
In the above three embodiments, the locking mechanism further includes a control module 5, where the control module 5 is an integrated control board fixedly packaged in the brake housing 23, and a communication module including a controller in signal communication with a control circuit of the locking motor 34 and receiving an external locking control signal is integrated on the control module, and the communication module receives the external locking control signal sent by the outside, and then processes the locking control signal through the controller to control the action of the locked motor, and the specific communication module transmission and motor control technology are common automatic control technologies, which are not described herein in detail.
The control module 5 is also in signal connection with a rotational speed sensor of the wheel axle where the brake is located. The rotation speed sensor may be an existing sensor of a device to which the brake belongs, or as shown in fig. 1, 10 and 17, the rotation speed of the brake disc is calculated through the fixed circumference of rotation and the frequency of the circumference of rotation by arranging the magnetic steel 41 and the hall sensor 42 at positions corresponding to the brake disc 11 and the brake housing 23, that is, the rotation speed of the wheel axle of the coaxial assembly of the brake.
The locking control method of the locking mechanism adopting the control module comprises the following steps: setting a protection rotating speed in the locking control process, and when the rotating speed sensor detects that the real-time rotating speed of the wheels connected with the brake is lower than the protection rotating speed, driving the locking control rod to pull the brake transmission rod and the brake transmission mechanism to brake the expansion brake by receiving an external locking control signal by the locking motor, and keeping the expansion brake in a braking state; and when the real-time rotating speed of the brake connected wheels exceeds the protection rotating speed, the locking motor does not execute an external locking control signal and keeps the locking control signal, and when the real-time rotating speed is lower than the protection rotating speed, locking is executed. Safety accidents caused by misoperation of locking when the wheels are still rotating are avoided.
While the foregoing embodiments have described the basic underlying principles and features of the invention as well as the advantages thereof, it will be appreciated by those skilled in the art that the invention is not limited by the foregoing embodiments and description merely illustrates the specific principles of the invention, but rather various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (13)
1. Locking mechanism based on brake ware that rises, its characterized in that: comprises a brake transmission rod, a brake control rod and a locking control rod;
the brake transmission rod, the brake control rod and the locking control rod are respectively hinged and arranged in a brake shell of the expansion brake,
one of the non-hinge point positions on the brake transmission rod is connected with a brake transmission mechanism for controlling the brake skin of the expansion brake to expand towards the inner ring of the brake disc, and the brake transmission rod is detachably assembled with the brake control rod and the locking control rod through a brake control structure and a locking control structure at other non-hinge point positions;
one of the non-hinge point positions on the brake control rod is connected with the brake transmission rod through the brake control structure, and the other non-hinge point positions are connected with an external brake control part;
one of the non-hinge point positions on the locking control rod is connected with the brake transmission rod through the locking control structure, and the other non-hinge point positions are connected with the locking driving assembly;
the brake control rod and the locking control rod control the brake skin connected with the brake transmission rod through lever action to realize braking and locking.
2. The locking mechanism based on the expansion brake of claim 1, wherein the brake transmission rod, the brake control rod and the locking control rod are mutually overlapped, the brake control structure and the locking control structure are protrusions and edges which are mutually contacted on adjacent overlapped rods, and the protrusions are arranged on one of the adjacent overlapped rods to be contacted with the edges of the other rod.
3. The locking mechanism based on the expansion brake according to claim 2, wherein the protrusions adopt a roller structure.
4. A locking mechanism based on an expansion brake according to any one of claims 1-3, wherein the locking control rod and the locking driving assembly are connected through a control spring, and the brake control rod is arranged in a spring hinging way.
5. The tension brake-based locking mechanism of claim 4, the locking drive assembly comprising a locking motor and an eccentric, the locking motor being fixedly mounted within the brake housing, the motor output shaft being connected to the control spring through the eccentric.
6. The locking mechanism based on the expansion brake of claim 4, wherein the locking driving assembly comprises a locking motor, a screw rod and a control nut, the locking motor is fixedly arranged in the brake shell, an output shaft of the motor is connected with the screw rod, the control nut is in threaded connection with the screw rod and guides and limits along the length direction of the screw rod, and the control nut is connected with the control spring.
7. The tension brake-based locking mechanism of claim 5 or 6, further comprising a control module in the form of an integrated control panel secured within the brake housing comprising a controller in signal communication with the locking motor control circuit and a communication module that receives an external locking control signal.
8. The tension brake-based locking mechanism of claim 7, wherein the control module is in signal communication with a rotational speed sensor of a wheel to which the tension brake is coupled.
9. The tension brake-based locking mechanism of claim 8, wherein the rotational speed sensor is a magnetic steel and a hall sensor respectively arranged on the brake disc and the brake housing.
10. The locking mechanism based on the expansion brake according to claim 1, wherein the brake transmission mechanism of the expansion brake comprises a brake pad integrally installed with a brake skin of the expansion brake and a brake transmission pad for driving the brake pad to expand towards a brake disc;
the brake pad is arranged in parallel with one radial sliding mode of the inner ring of the brake disc, and is kept away from the inner ring of the brake disc through a first return spring, and the outer side of the brake pad is provided with a brake skin installation arc section which is matched with the inner ring of the brake disc; the brake transmission block is arranged in a sliding mode along the other radial direction of the inner ring of the brake disc, is connected with the brake transmission rod, keeps a tensioning state of the brake transmission rod through a second return spring, and is provided with a control surface for pushing the brake block to move towards the inner ring of the brake disc along the sliding direction of the brake transmission block.
11. The locking mechanism based on the expansion brake of claim 10, wherein the two groups of brake pads are symmetrically arranged on the inner ring of the brake disc in the same radial direction, the brake transmission blocks are arranged in a sliding manner along the perpendicular bisectors of the two groups of brake pads, and control surfaces for respectively controlling the two groups of brake pads are arranged on two sides of the brake transmission blocks.
12. The locking mechanism based on an expansion brake according to claim 10 or 11, wherein the brake pad is provided with a brake roller in contact with a control surface of the brake actuator.
13. A locking control method of a locking mechanism based on an expansion brake according to claim 8, characterized in that: a protection rotational speed is set up and a protection rotational speed is set up,
when the rotating speed sensor monitors that the real-time rotating speed of the wheels connected with the brake is lower than the protection rotating speed, the locking motor drives the locking control rod to pull the brake transmission rod and the brake transmission mechanism by receiving an external locking control signal, so as to brake the expansion brake and keep the expansion brake in a braking state;
when the real-time rotating speed of the brake connecting wheel exceeds the protection rotating speed, the locking motor does not execute an external locking control signal and keeps the locking control signal, and when the real-time rotating speed is lower than the protection rotating speed, locking is executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202195.1A CN108657360B (en) | 2017-03-30 | 2017-03-30 | Locking mechanism based on expansion brake and locking control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202195.1A CN108657360B (en) | 2017-03-30 | 2017-03-30 | Locking mechanism based on expansion brake and locking control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108657360A CN108657360A (en) | 2018-10-16 |
| CN108657360B true CN108657360B (en) | 2023-06-06 |
Family
ID=63786635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710202195.1A Active CN108657360B (en) | 2017-03-30 | 2017-03-30 | Locking mechanism based on expansion brake and locking control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108657360B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918606B (en) * | 2021-03-10 | 2022-03-22 | 浙江赢路智能科技有限公司 | Indicate to dial brake and accelerate integrative controlling device based on scooter |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363941Y (en) * | 1998-07-13 | 2000-02-16 | 谢建国 | Band-type brake bicycle automatic lock |
| CN2625245Y (en) * | 2003-05-25 | 2004-07-14 | 许志明 | Electric remote controlled lock for bicycle |
| CN2703697Y (en) * | 2004-04-06 | 2005-06-08 | 常州市德益机电制造有限公司 | Automatic expanding brake lock for electric bicycle |
| CN2848680Y (en) * | 2005-12-13 | 2006-12-20 | 蔡少勤 | Antitheft expansion brake lock of electric bicycle |
| CN201325512Y (en) * | 2008-11-04 | 2009-10-14 | 温州市明派车辆部件有限公司 | Remote-control antitheft expansion brake lock device of electric vehicle |
| CN201506409U (en) * | 2009-09-28 | 2010-06-16 | 汤志山 | Hub gate assembly with lock for electric motor car |
| CN201633820U (en) * | 2010-02-03 | 2010-11-17 | 天津踏浪电动车股份有限公司 | Electronic expanding brake lock |
| CN105882803A (en) * | 2015-06-16 | 2016-08-24 | 安长海 | Electronic rolling code screw type rear wheel brake anti-theft lock |
| CN206914553U (en) * | 2017-03-30 | 2018-01-23 | 李博 | A kind of lockable mechanism based on the brake that rises |
-
2017
- 2017-03-30 CN CN201710202195.1A patent/CN108657360B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108657360A (en) | 2018-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8376093B2 (en) | Disc brake | |
| CN108657358B (en) | Locking mechanism based on brake and locking control method thereof | |
| JPH03113133A (en) | Front/rear wheel drum brake with servo parking brake | |
| CN108657360B (en) | Locking mechanism based on expansion brake and locking control method thereof | |
| US4249646A (en) | Drum brake assembly with non-servo and duo-servo characteristics | |
| CN215762975U (en) | Alarm device for abrasion of brake friction plate | |
| US5062506A (en) | Rotary drum brake assembly bracket | |
| JP4316731B2 (en) | Holding brake for traction sheave elevator | |
| CN111075859B (en) | Bidirectional double-collar shoe type drum brake | |
| CN115195688B (en) | Auxiliary brake device for failure of vehicle running brake | |
| CN101524991B (en) | Vehicle disk brake | |
| US4146117A (en) | Device for adjusting clearance between brake shoe and brake drum | |
| CN108317185B (en) | Clearance self-modulation type drum brake | |
| WO1998006608A2 (en) | Electro-mechanical actuation mechanism for disc brake assembly | |
| CN115806015A (en) | Motorcycle and parking mechanism thereof | |
| CN112265599B (en) | Anti-lock braking device for front brake of bicycle | |
| US20070199781A1 (en) | Disc Brake | |
| JP7014464B2 (en) | Brake linking and braking force distribution device | |
| CN114530986B (en) | Driving motor with brake function | |
| KR100855952B1 (en) | Disc brake for vehicle | |
| CN108253041B (en) | Clearance self-modulation type drum brake | |
| JP2558749Y2 (en) | Drum brakes for inward expansion vehicles | |
| KR101294662B1 (en) | Electromechanical Brake for Vehicle | |
| CN213705402U (en) | Linkage brake structure of wheel and engine | |
| KR20110103678A (en) | Electro wedge brake device for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231219 Address after: 528000 Floor 2, Building 8, Guangdong Sheraton Optoelectronics Technology Co., Ltd., Zone A, Shishan Science and Technology Industrial Park, Shishan Town, Nanhai District, Foshan City, Guangdong Province Patentee after: GUANGDONG LOFANDI INTELLIGENT TECHNOLOGY CO.,LTD. Address before: Room 301, Building A4, Baishawan, No. 1688 Shawan Road, Furong District, Changsha City, Hunan Province, 410000 Patentee before: Li Bo |
|
| TR01 | Transfer of patent right |