CN210290546U - Disc brake - Google Patents
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- CN210290546U CN210290546U CN201921123432.6U CN201921123432U CN210290546U CN 210290546 U CN210290546 U CN 210290546U CN 201921123432 U CN201921123432 U CN 201921123432U CN 210290546 U CN210290546 U CN 210290546U
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Abstract
The utility model provides a disc brake, include: the hydraulic brake device comprises a shell, a first piston brake part and a second piston brake part are arranged in the shell in a sliding mode, and a hydraulic pipeline is arranged in the shell; the pressure sensor is arranged in the hydraulic pipeline; the controller is electrically connected with the pressure sensor; and the alarm device is electrically connected with the controller, wherein the first piston braking part and the second piston braking part can be clamped with two sides of the brake disc under the action of hydraulic oil in the hydraulic pipeline so as to realize braking. The utility model provides a disc brake, when first piston braking portion and second piston braking portion wearing and tearing were serious, still can not effectively brake after first piston braking portion and the maximum stroke of second piston braking portion motion this moment, and when hydraulic pressure in the hydraulic pressure pipeline was greater than the default, control alarm device reported to the police, and the user of being convenient for in time changes first piston braking portion and second piston braking portion.
Description
Technical Field
The utility model relates to an agricultural machine technical field particularly, relates to a disc brake.
Background
A brake refers to a component that generates a braking torque, a force to oppose motion or a tendency of motion of a vehicle. Friction brakes, which use the friction between a stationary element and a working surface of a rotating element to generate a braking torque, are often used in automobiles.
The brake calipers of a hydraulic disc brake are generally arranged on the inner side of the brake, and oil passages of two opposite hydraulic cylinders and opposite oil cylinders are communicated. During braking, the piston is pushed to the brake disc under the action of hydraulic pressure. The pads on both sides of the brake disk then clamp the brake disk under the action of hydraulic pressure, so that they generate braking torques in opposite directions on the brake disk, which causes the rotating device to brake, which is common in engineering machinery products and even agricultural machinery.
In the prior art, after the brake block is worn, a user needs to judge when the brake block needs to be replaced according to the use experience, and accidents are easy to happen due to untimely replacement of the brake block.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
In view of the above, an object of the present invention is to provide a disc brake.
In order to achieve the above object, the present invention provides a disc brake, including: the casing, the slip is provided with first piston braking portion and second piston braking portion in the casing, includes in the casing: the hydraulic brake device comprises a shell, a first piston brake part and a second piston brake part are arranged in the shell in a sliding mode, and a hydraulic pipeline is arranged in the shell; the pressure sensor is arranged in the hydraulic pipeline; the controller is electrically connected with the pressure sensor; and the alarm device is electrically connected with the controller, wherein the first piston braking part and the second piston braking part can be clamped with two sides of the brake disc under the action of hydraulic oil in the hydraulic pipeline so as to realize braking.
In the scheme, when the disc brake brakes, the braking is realized by the friction force between the first piston braking part and the brake disc and the friction force between the second piston braking part and the brake disc. Before braking is completed, the hydraulic pressure in the hydraulic line is continuously increased to increase friction between the first and second piston braking portions and the brake disc. When the first piston braking part and the second piston braking part are seriously abraded, the first piston braking part and the second piston braking part still cannot effectively brake after moving for the maximum stroke, the hydraulic pressure in the hydraulic pipeline is continuously increased until the hydraulic pressure in the hydraulic pipeline is greater than a preset value, the controller acquires the hydraulic pressure in the hydraulic pipeline through the pressure sensor and then controls the alarm device to give an alarm, a user can conveniently and timely replace the first piston braking part and the second piston braking part, and the possibility of accidents caused by the fact that the first piston braking part and the second piston braking part are excessively abraded is reduced.
In the above technical solution, preferably, the method further includes: the first position sensor is fixedly arranged on the shell and is arranged on one side, away from the brake disc, of the first piston braking portion, and the first position sensor is electrically connected with the controller.
In any of the above technical solutions, preferably, the method further includes: and the second position sensor is fixedly arranged on the shell and is arranged on one side of the second piston braking part far away from the brake disc, and the second position sensor is electrically connected with the controller.
In any of the above technical solutions, preferably, the method further includes: the two sides of the first return device are respectively connected with the first piston braking part and the shell; the two sides of the second return device are respectively connected with the second piston braking part and the shell, and deformation of the first return device and the second return device is increased when the first piston braking part and the second piston braking part are clamped with the two sides of the brake disc; after the hydraulic pipeline is decompressed, the first return device and the second return device can restore the deformation and drive the first piston braking portion and the second piston braking portion to move towards the direction far away from the brake disc.
In any one of the above technical solutions, preferably, the first returning device includes: the first limiting block is movably arranged in the first return groove; the two ends of the first elastic piece are respectively abutted to the first limiting block and the side wall of the first return groove, and during braking, the first limiting block is limited by the shell and matched with the first piston braking portion to extrude the first elastic piece.
In any of the above technical solutions, preferably, the housing includes: the first piston braking part is arranged in the first caliper body in a sliding manner; the second caliper body is fixedly connected with the first caliper body, the second piston braking portion is arranged in the second caliper body in a sliding mode, a first check ring is arranged in the first caliper body, and two sides of the first limiting block are abutted to the first check ring and the first elastic piece respectively.
In any one of the above technical solutions, preferably, the second returning device includes: a second limiting block, wherein a second return groove is formed on the periphery of the second piston braking part, and the second limiting block is movably arranged in the second return groove; and two ends of the second elastic piece are respectively abutted against the second limiting block and the side wall of the second return groove, wherein during braking, the second limiting block is limited by the second caliper body and is matched with the second piston braking part to extrude the second elastic piece.
In any one of the above technical solutions, preferably, a second retaining ring is disposed in the second caliper body, and one side of the second limiting block, which is far away from the second piston braking portion, abuts against the second retaining ring.
In any one of the above technical solutions, preferably, the first piston stopper portion includes: the first caliper piston is arranged in the shell in a sliding mode; the first brake block is fixedly arranged at one end, close to the brake disc, of the first caliper piston, and the hydraulic pipeline can drive the first caliper piston to move so that the first brake block is attached to one end of the brake disc; after the hydraulic pipeline is decompressed, the first return device drives the first caliper piston to slide towards the direction far away from the brake disc so as to separate the first brake block from the brake disc.
In any one of the above technical solutions, preferably, the second piston stopper portion includes: the second caliper piston is arranged in the shell in a sliding mode; the second brake block is fixedly arranged at one end, close to the brake disc, of the second caliper piston, and the hydraulic pipeline can drive the second caliper piston to move so that the second brake block is attached to one end of the brake disc; after the hydraulic pipeline is decompressed, the second return device drives the second caliper piston to slide towards the direction far away from the brake disc, so that the second brake block is separated from the brake disc.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a disc brake according to an embodiment of the present invention.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is:
10 casing, 11 first caliper body, 111 first retaining ring, 12 second caliper body, 121 second retaining ring, 21 first caliper piston, 22 first brake pad, 31 second caliper piston, 32 second brake pad, 41 first hydraulic line, 42 second hydraulic line, 511 first sub-stopper, 512 second sub-stopper, 52 first elastic element, 611 third sub-stopper, 612 fourth sub-stopper, 62 second elastic element, 70 first sealing ring, 80 second sealing ring, 90 piston dust cover, 100 brake disc center, 120 pressure sensor, 130 first position sensor, 140 first hydraulic chamber, 150 second hydraulic chamber.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1.
As shown in fig. 1, an embodiment of the present invention provides a disc brake, including: the casing, it has first piston braking portion and second piston braking portion to slide in the casing 10, includes in the casing 10: the piston brake device comprises a shell 10, wherein a first piston brake part and a second piston brake part are arranged in the shell 10 in a sliding mode, and a hydraulic pipeline is arranged in the shell 10; a pressure sensor 120 disposed in the hydraulic line; a controller electrically connected to the pressure sensor 120; and the alarm device is electrically connected with the controller, wherein the first piston braking part and the second piston braking part can be clamped with two sides of the brake disc under the action of hydraulic oil in the hydraulic pipeline so as to realize braking.
In the scheme, when the disc brake brakes, the braking is realized by the friction force between the first piston braking part and the brake disc and the friction force between the second piston braking part and the brake disc. Before braking is completed, the hydraulic pressure in the hydraulic line is continuously increased to increase friction between the first and second piston braking portions and the brake disc. When the first piston braking part and the second piston braking part are seriously worn, the first piston braking part and the second piston braking part still cannot effectively brake after moving for the maximum stroke, the hydraulic pressure in the hydraulic pipeline is continuously increased until the hydraulic pressure in the hydraulic pipeline is greater than a preset value, the controller controls the alarm device to give an alarm after acquiring the hydraulic pressure in the hydraulic pipeline through the pressure sensor 120, a user can conveniently and timely replace the first piston braking part and the second piston braking part, and the possibility of accidents caused by the fact that the first piston braking part and the second piston braking part are excessively worn is reduced.
In this embodiment, the connection relationship and the control mode among the hydraulic sensor, the controller and the alarm device may refer to the structure of the pressure alarm module in the invention patent with the publication number CN105271044A, and details are not repeated here.
In the above embodiment, preferably, the method further includes: and the first position sensor 130 is fixedly arranged on the shell 10 and is arranged on one side of the first piston braking part far away from the brake disc, and the first position sensor 130 is electrically connected with the controller.
In the scheme, the first position sensor 130 can detect the initial position of the first piston braking portion in the non-braking state and the limit position of the first piston braking portion in the braking state, so that the stroke of the first piston braking portion can be determined, when the first piston braking portion is abraded greatly, the stroke of the first piston braking portion in braking is increased, when the stroke of the first piston braking portion is larger than the preset stroke, the abrasion of the first piston braking portion is large at the moment, the controller controls the alarm device to give an alarm, and a user is reminded to replace the first piston braking portion in time.
In the embodiment, the type of the position sensor is PY-2-F-025, the controller is an STM32F101 type single chip microcomputer, and the alarm device is a loudspeaker.
In any of the above embodiments, preferably, the method further includes: and the second position sensor is fixedly arranged on the shell 10 and is arranged on one side of the second piston braking part far away from the brake disc, and the second position sensor is electrically connected with the controller.
In the scheme, the second position sensor can detect the initial position of the second piston braking part in a non-braking state and the limit position of the second piston braking part in a braking state, so that the stroke of the second piston braking part can be determined, when the second piston braking part is abraded greatly, the stroke of the second piston braking part in braking is increased, when the stroke of the second piston braking part is larger than the preset stroke, the abrasion of the second piston braking part is large at the moment, the controller controls the alarm device to give an alarm, and a user is reminded to replace the second piston braking part in time.
In the embodiment, the type of the position sensor is PY-2-F-025, the controller is an STM32F101 type single chip microcomputer, and the alarm device is a loudspeaker.
In any of the above embodiments, preferably, the method further includes: the two sides of the first return device are respectively connected with the first piston braking part and the shell 10; the two sides of the second return device are respectively connected with the second piston braking part and the shell 10, wherein when the first piston braking part and the second piston braking part are clamped with the two sides of the brake disc, deformation of the first return device and the second return device is increased; after the hydraulic pipeline is decompressed, the first return device and the second return device can restore the deformation and drive the first piston braking portion and the second piston braking portion to move towards the direction far away from the brake disc.
In this scheme, when braking, hydraulic line passes through the first piston braking portion of hydraulic drive and the second piston braking portion moves to the brake disc jointly to make first piston braking portion and second piston braking portion press from both sides tightly in the both sides of brake disc, in order to realize braking. When braking needs to be stopped, the hydraulic pipeline is decompressed, the first piston braking portion moves towards the direction far away from the brake disc under the action of the first return device, the second piston braking portion moves towards the direction far away from the brake disc under the action of the second return device, and at the moment, the first piston braking portion and the second piston braking portion move along opposite directions, so that the first piston braking portion and the second piston braking portion are separated from the brake disc.
By arranging the first return device and the second return device, the disc brake can be quickly and automatically returned, unnecessary abrasion of the first piston brake part and the second piston brake part is reduced, and the service life is conveniently prolonged; but also can keep effective braking performance and has high working reliability. Meanwhile, the disc brake in the scheme has the advantages of simple structure, quick return, sensitive braking, convenience in maintenance, low cost, low requirement on machining precision and convenience for large-scale application.
In an embodiment of the present invention, the first returning device is a spring, the two ends of the spring are respectively hooked on the first piston braking portion and the housing 10, when the disc brake is braking, the first piston braking portion moves towards the direction close to the brake disc, at this moment, the first returning device deforms and extends, and after the pressure is released by the hydraulic pipeline, the first returning device contracts to drive the first piston braking portion to slide towards the direction away from the brake disc.
The utility model discloses an in one embodiment, second return means is the spring, and the both ends of spring are colluded respectively on second piston braking portion and casing 10, and during the braking of disc brake, second piston braking portion is to the direction motion that is close to the brake disc, and second return means produced deformation and extension this moment, and after the hydraulic pressure pipeline pressure release, second return means shrink to the direction that drives second piston braking portion and slides to keeping away from the brake disc.
The connection between the first returning device and the housing 10 and the connection between the first returning device and the first piston braking portion may be abutting, hooking or connecting. Similarly, the connection of the second return device with the housing 10 and the second piston brake may be an abutment, a hook or a connection.
In the above embodiment, preferably, the first returning device includes: the first limiting block is movably arranged in the first return groove; the two ends of the first elastic element 52 are respectively abutted against the side walls of the first limiting block and the first return groove, wherein, during braking, the first limiting block is limited by the housing 10 and is matched with the first piston braking portion to extrude the first elastic element 52.
In this embodiment, the first returning device includes a first stopper and a first elastic member 52. The first limiting block is annular and is sleeved in the first return groove so as to realize the movable arrangement of the first limiting block in the first return groove. The first stopper and the first elastic member 52 abut against each other, one side of the first stopper, which is far away from the first elastic member 52, abuts against the housing 10, and one side of the first elastic member 52, which is far away from the first stopper, abuts against the first piston braking portion. When the disc brake is applied, the first piston brake part moves toward the brake disc, the housing 10 limits the movement of the first stopper in the axial direction of the first piston brake part, the first brake pad 22 and the first piston brake part together compress the first elastic member 52, and the first elastic member 52 is compressed. When the hydraulic circuit is depressurized, the first elastic element 52 recovers its shape and extends to drive the first piston brake portion to slide in a direction away from the brake disc.
The scheme of this embodiment has little influence on the original structure of the disc brake, and the design and the manufacture are more convenient.
In any one of the above embodiments, preferably, the first stopper includes: the first sub-limiting block 511 and the second sub-limiting block 512 are semi-annular, the first sub-limiting block 511 and the second sub-limiting block 512 are abutted against the bottom of the shell 10 and the bottom of the first return groove in the radial direction of the first piston braking portion, the first sub-limiting block 511 and the second sub-limiting block 512 are abutted against each other in the axial direction of the first piston braking portion to form an annular first limiting block at the splicing portion, wherein both the first sub-limiting block 511 and the second sub-limiting block 512 are abutted against the first elastic member 52, the first sub-limiting block 511 and the second sub-limiting block 512 are abutted against each other in the circumferential direction of the first piston braking portion, and during braking, the first sub-limiting block 511 and the second sub-limiting block 512 are limited by the shell 10 in the axial direction of the first piston braking portion and are matched with the first piston braking portion to press the first elastic member 52.
In this scheme, the first sub-limiting block 511 and the second sub-limiting block 512 are semi-annular, so that the first limiting block can be assembled and disassembled more conveniently.
In any of the above embodiments, preferably, the housing 10 includes: the first caliper body 11, the first piston brake part is arranged in the first caliper body 11 in a sliding manner; the second caliper body 12 is fixedly connected to the first caliper body 11, the second piston braking portion is slidably disposed in the second caliper body 12, wherein a first retaining ring 111 is disposed in the first caliper body 11, and one sides of the first sub-limiting block 511 and the second sub-limiting block 512, which are far away from the first elastic member 52, abut against the first retaining ring 111.
In this scheme, the first sub-limiting block 511 and the second sub-limiting block 512 abut against the first retaining ring 111 to realize the abutting of the first sub-limiting block 511 and the second sub-limiting block 512 against the housing 10.
In any one of the above embodiments, preferably, the first piston stopper portion includes: a first caliper piston 21 slidably disposed in the housing 10; the first brake block 22 is fixedly arranged at one end, close to the brake disc, of the first caliper piston 21, and after the hydraulic pipeline is pressurized, the first caliper piston 21 is driven to move so that the first brake block 22 is attached to one end of the brake disc; after the hydraulic pipeline is depressurized, the first returning device drives the first caliper piston 21 to slide in a direction away from the brake disc, so that the first brake pad 22 is separated from the brake disc.
Specifically, a first sliding cavity is arranged in the first caliper body 11, and the bottom of the first sliding cavity is communicated with a hydraulic pipeline. The first caliper piston 21 is embedded in and slidable along the first sliding chamber. An annular groove is arranged on the side wall of the first sliding cavity close to one side of the brake disc, and the first check ring 111 is embedded and fastened in the annular groove. The first sub-stopper 511 and the second sub-stopper 512 are attached to the side wall of the first sliding cavity and abut against one side of the first retainer ring 111 close to the first caliper piston 21. The first caliper piston 21 passes through the first stopper and can slide along the first sliding chamber. Both ends of the first elastic member 52 abut against the first caliper piston 21 and the first stopper, respectively. The side of the first caliper piston 21 adjacent to the clamping disc is fixedly connected to a first brake pad 22. A second sealing ring 80 (for example, a rectangular sealing ring) is arranged on the side wall of the first sliding cavity.
During braking, the hydraulic pipeline is pressurized, hydraulic oil in the hydraulic pipeline is injected into the bottom of the first sliding cavity, the first caliper piston 21 moves towards one side of the brake disc under the action of the hydraulic oil, the first elastic part 52 is compressed, and the second sealing ring 80 can prevent the leakage of the hydraulic oil in the movement process of the first caliper piston 21. When the hydraulic pipeline is depressurized, the hydraulic oil flows back to the oil tank, and the first elastic element 52 recovers deformation and extends to drive the first caliper piston 21 to move in the direction away from the brake disc.
It is worth to say that, an integrally formed protrusion can be further disposed in the first caliper body 11 and abuts against the first limiting block, so as to limit the first limiting block.
In any of the above embodiments, preferably, the second returning means includes: a second limiting block, wherein a second return groove is formed on the periphery of the second piston braking part, and the second limiting block is movably arranged in the second return groove; and two ends of the second elastic part 62 are respectively abutted against a second limiting block and the side wall of the second return groove, wherein during braking, the second limiting block is limited by the second caliper body 12 and matched with the second piston braking part to extrude the second elastic part 62.
In this scheme, second return means includes second stopper and second elastic component 62. The second limiting block is annular and is sleeved in the second return groove so as to realize the movable arrangement of the second limiting block in the second return groove. The second limiting block and the second elastic member 62 abut against each other, one side of the second limiting block, which is far away from the second elastic member 62, abuts against the housing 10, and one side of the second elastic member 62, which is far away from the second limiting block, abuts against the second piston braking portion. When the disc brake is applied, the second piston brake portion moves in a direction close to the brake disc, the second caliper body 12 restricts the movement of the second stopper in the axial direction of the second piston brake portion, the second brake pad 32 and the second piston brake portion compress the second elastic member 62 together, and the second elastic member 62 is compressed. When the hydraulic line is depressurized, the second elastic element 62 is deformed and extended to drive the second piston brake portion to slide in a direction away from the brake disc.
In any of the above embodiments, preferably, a second stop ring 121 is disposed in the second caliper body 12, and one side of the second limit block, which is far away from the second piston braking portion, abuts against the second stop ring 121.
In any one of the above embodiments, preferably, the second stopper includes: the third sub-limiting block 611 and the fourth sub-limiting block 612 are semi-annular, the third sub-limiting block 611 and the fourth sub-limiting block 612 abut against the second caliper body 12 and the bottom of the second return groove in the radial direction of the second piston braking portion, the third sub-limiting block 611 and the fourth sub-limiting block 612 abut against in the circumferential direction of the second piston braking portion to form an annular second limiting block, wherein both the third sub-limiting block 611 and the fourth sub-limiting block 612 abut against the first elastic member 52, and during braking, the third sub-limiting block 611 and the fourth sub-limiting block 612 are limited by the second caliper body 12 in the axial direction of the second piston braking portion and press the second elastic member 62 in cooperation with the second piston braking portion.
In any one of the above embodiments, preferably, the second piston stopper portion includes: a second caliper piston 31 slidably disposed in the housing 10; the second brake block 32 is fixedly arranged at one end of the second caliper piston 31 close to the brake disc, and the hydraulic pipeline can drive the second caliper piston 31 to move so that the second brake block 32 is attached to one end of the brake disc; after the hydraulic pipeline is depressurized, the second returning device drives the second caliper piston 31 to slide in a direction away from the brake disc, so that the second brake pad 32 is separated from the brake disc.
Specifically, a second sliding cavity is arranged in the second caliper body 12, and the bottom of the second sliding cavity is communicated with a hydraulic pipeline. The second caliper piston 31 is embedded in and slidable along the second sliding chamber. An annular groove is arranged on the side wall of one side of the second sliding cavity close to the brake disc, and the second retainer ring 121 is embedded and fastened in the annular groove. The second sub-stopper 512 and the second sub-stopper 512 are attached to the sidewall of the second sliding cavity and abut against one side of the second retainer 121 close to the second caliper piston 31. The second caliper piston 31 passes through the second stopper and can slide along the second sliding chamber. The two ends of the second elastic element 62 abut against the second caliper piston 31 and the second stopper, respectively. The side of the second caliper piston 31 adjacent to the clamping disc is fixedly connected to the second brake pad 32. A second sealing ring 80 (for example, a rectangular sealing ring) is arranged on the side wall of the second sliding cavity.
During braking, hydraulic oil in a hydraulic pipeline is injected into the bottom of the second sliding cavity, the second caliper piston 31 moves towards one side of the brake disc under the action of the hydraulic oil, the second elastic part 62 is compressed, and the second sealing ring 80 can prevent the leakage of the hydraulic oil in the movement process of the second caliper piston 31. When the hydraulic pipeline is depressurized, hydraulic oil flows back to the oil tank, and the second elastic element 62 recovers deformation and extends to drive the second caliper piston 31 to move towards the direction far away from the brake disc.
It should be noted that the second caliper body 12 may further include an integrally formed protrusion and abut against the second limiting block, so as to limit the second limiting block.
In any of the above embodiments, preferably, the hydraulic circuit comprises: a first hydraulic line 41 provided in the first caliper body 11, a first hydraulic chamber 140 formed between the first piston brake portion and the first caliper body 11 being communicated with the first hydraulic line 41; and a second hydraulic line 42 provided in the second caliper body 12 and communicating with the first hydraulic line 41, and a second hydraulic chamber 150 formed by the second piston braking portion and the second caliper body 12 communicates with the second hydraulic line 42.
Further, a first seal ring 70 is provided at a connection position of the first hydraulic line 41 and the second hydraulic line 42 to prevent leakage of the hydraulic oil.
In this embodiment, the hydraulic line is communicated with the oil pump and the oil tank through the two-position three-way valve. When the two-position three-way valve is located at the first position, the hydraulic pipeline is communicated with the oil pump, the first caliper piston 21 and the second caliper piston 31 move towards each other under the action of hydraulic oil, and the first brake block 22 and the second brake block 32 are clamped on two sides of the brake disc to realize braking. After the two-position three-way valve is switched to the second position, the hydraulic pipeline is communicated with the oil tank, hydraulic oil in the hydraulic pipeline flows into the oil tank, and meanwhile, an oil outlet of the oil pump is communicated with the oil tank through an overflow valve so as to keep the pressure constant.
In another embodiment of the present invention, the stroke of the first caliper piston 21 is greater than the distance between the first caliper piston 21 and the first stopper, so that the first brake pad 22 can still work normally when it is worn.
In another embodiment of the present invention, the stroke of the second caliper piston 31 is greater than the distance between the second caliper piston 31 and the second stopper, so that the second brake pad 32 can still work normally when it is worn.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A disc brake, comprising:
the brake device comprises a shell (10), wherein a first piston braking part and a second piston braking part are arranged in the shell (10) in a sliding mode, and a hydraulic pipeline is arranged in the shell (10);
a pressure sensor (120) disposed within the hydraulic line;
a controller electrically connected to the pressure sensor (120);
the alarm device is electrically connected with the controller,
the first piston braking portion and the second piston braking portion can be clamped with two sides of a brake disc under the action of hydraulic oil in the hydraulic pipeline, and therefore braking is achieved.
2. The disc brake of claim 1, further comprising:
and the first position sensor (130) is fixedly arranged on the shell (10) and arranged on one side of the first piston braking part far away from the brake disc, and the first position sensor (130) is electrically connected with the controller.
3. The disc brake of claim 1, further comprising:
and the second position sensor is fixedly arranged on the shell (10) and is arranged on one side of the second piston braking part far away from the brake disc, and the second position sensor is electrically connected with the controller.
4. The disc brake of any one of claims 1 to 3, further comprising:
the two sides of the first return device are respectively connected with the first piston braking part and the shell (10);
a second return device, both sides of which are respectively connected with the second piston braking part and the shell (10),
when the first piston braking part and the second piston braking part are clamped with two sides of a brake disc, deformation of the first return device and the second return device is increased; after the hydraulic pipeline is decompressed, the first return device and the second return device can restore the deformation and drive the first piston braking portion and the second piston braking portion to move towards the direction far away from the brake disc.
5. The disc brake of claim 4, wherein the first return device comprises:
a first limiting block, wherein a first return groove is formed on the periphery of the first piston braking part, and the first limiting block is movably arranged in the first return groove;
a first elastic piece (52), wherein two ends of the first elastic piece (52) are respectively abutted with the side walls of the first limiting block and the first return groove,
when braking, the first limiting block is limited by the shell (10) and matched with the first piston braking part to extrude the first elastic piece (52).
6. The disc brake of claim 5, characterized in that the housing (10) comprises:
a first caliper body (11), said first piston brake being slidably disposed within said first caliper body (11);
a second caliper body (12) fixedly connected with the first caliper body (11), the second piston braking part is arranged in the second caliper body (12) in a sliding manner,
the first clamp body (11) is internally provided with a first retaining ring (111), and two sides of the first limiting block are respectively abutted against the first retaining ring (111) and the first elastic piece (52).
7. The disc brake of claim 6, wherein the second return means comprises:
a second return groove is formed on the periphery of the second piston braking part, and the second limiting block is movably arranged in the second return groove;
a second elastic piece (62), wherein two ends of the second elastic piece (62) are respectively abutted with the second limiting block and the side wall of the second return groove,
when braking is carried out, the second limiting block is limited by the second caliper body (12) and matched with the second piston braking portion to extrude the second elastic piece (62).
8. The disc brake of claim 7,
and a second check ring (121) is arranged in the second caliper body (12), and one side of the second limiting block, which is far away from the second piston braking part, abuts against the second check ring (121).
9. The disc brake of claim 4, wherein the first piston braking portion includes:
a first caliper piston (21) slidably disposed within the housing (10);
the first brake block (22) is fixedly arranged at one end of the first caliper piston (21) close to the brake disc, and the hydraulic pipeline can drive the first caliper piston (21) to move so that the first brake block (22) is attached to one end of the brake disc; after the hydraulic pipeline is decompressed, the first return device drives the first caliper piston (21) to slide towards the direction far away from the brake disc, so that the first brake block (22) is separated from the brake disc.
10. The disc brake of claim 4, wherein the second piston braking portion includes:
a second caliper piston (31) slidably disposed within the housing (10);
a second brake pad (32) fixedly arranged at one end of the second caliper piston (31) close to the brake disc, wherein the hydraulic pipeline can drive the second caliper piston (31) to move so as to enable the second brake pad (32) to be attached to one end of the brake disc; after the hydraulic pipeline is decompressed, the second return device drives the second caliper piston (31) to slide towards the direction far away from the brake disc, so that the second brake block (32) is separated from the brake disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921123432.6U CN210290546U (en) | 2019-07-17 | 2019-07-17 | Disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921123432.6U CN210290546U (en) | 2019-07-17 | 2019-07-17 | Disc brake |
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| Publication Number | Publication Date |
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| CN210290546U true CN210290546U (en) | 2020-04-10 |
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| CN201921123432.6U Active CN210290546U (en) | 2019-07-17 | 2019-07-17 | Disc brake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345177A (en) * | 2019-07-17 | 2019-10-18 | 雷沃重工股份有限公司 | A kind of disk brake and control method |
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2019
- 2019-07-17 CN CN201921123432.6U patent/CN210290546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345177A (en) * | 2019-07-17 | 2019-10-18 | 雷沃重工股份有限公司 | A kind of disk brake and control method |
| CN110345177B (en) * | 2019-07-17 | 2024-02-06 | 潍柴雷沃智慧农业科技股份有限公司 | Disc brake and control method |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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