CN218207548U

CN218207548U - Device for realizing brake block floating in disc brake fixing clamp

Info

Publication number: CN218207548U
Application number: CN202220656759.5U
Authority: CN
Inventors: 廖伯云
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2023-01-03
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a realize unsteady device of brake block in fixed pincers of disc brake, the device drives left brake block respectively with same root drive roller bearing, right brake block is by to or keep away from the brake disc that is located left brake block, between the right brake block, realize left brake block, right brake block is by to or keep away from the brake disc that is located left brake block, between the right brake block with the extrusion force that equals in real time, thereby reach and carry out real-time isobaric braking to the brake disc both sides, the utility model has the advantages of brake caliper body size is little, simple structure, rigidity is good, stable performance, safe and reliable, convenient control, whole space compact structure, low in cost, be applicable to machinery, hydraulic pressure, brake actuating mechanism drive control such as atmospheric pressure, specially adapted is starting to develop the brake actuating mechanism drive control who uses including ABS function and other extended function in an organic whole electromechanical braking system (EMB) at present in the automobile sector.

Description

Device for realizing brake block floating in disc brake fixing clamp

Technical Field

The utility model relates to a disc brake technical field specifically is a device that realizes brake pads unsteady in the fixed pincers of disc brake in the vehicle.

Background

The fixed brake caliper disc brake has the structural characteristics that: the caliper body of the brake caliper is fixedly connected with an axle and cannot move relatively, so the rigidity is good, but the left brake block and the right brake block on two sides of a brake disc are required to float, so hydraulic piston cylinders communicated with hydraulic oil ducts are required to be arranged on two sides of the brake caliper, and the brake caliper has the characteristic that no other sliding part is arranged except for a piston and the brake block.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, it is an object of the present invention to provide a device for floating a brake pad in a fixed caliper of a disc brake, so as to overcome the problems in the prior art.

The utility model discloses an adopt following technical scheme to overcome above not enough problem, specifically do:

a method for realizing brake block floating in a disc brake fixing clamp comprises the steps of respectively driving a left brake block and a right brake block to lean against or be far away from a brake disc between the left brake block and the right brake block by a same driving rolling shaft, and realizing that the left brake block and the right brake block lean against or are far away from the brake disc between the left brake block and the right brake block by real-time equal extrusion force, so that real-time equal-pressure braking is carried out on two sides of the brake disc.

As a further aspect of the present invention: the two sides of the driving roller are fixed in a fixed brake caliper on an axle through bearings, the upper ends of the left brake block and the right brake block are sleeved on the driving roller, so that a positive thread matching mode is adopted for one brake block and the driving roller, a reverse thread matching mode or a centripetal thrust bearing matching mode is correspondingly adopted for the other brake block, the driving end of the driving roller is connected with a brake driving mechanism of a vehicle, and the brake driving mechanism controls the rotation of the driving roller.

As a further aspect of the present invention: when the left brake block and the right brake block are connected with the driving roller in a positive and negative thread matching mode and the driving roller cannot move axially, the spline shaft sleeve is sleeved in the middle of the driving roller and connected with the driving roller through a spline, so that the spline shaft sleeve can rotate along with the driving roller and can move freely on the axis of the driving roller, positive threads are arranged on one side of the outer cylindrical surface of the spline shaft sleeve, and negative threads are arranged on the other side of the outer cylindrical surface of the spline shaft sleeve; the left brake block and the right brake block are respectively matched with the corresponding positive threads and the corresponding negative threads on the spline shaft sleeve to form a spiral transmission pair; when needs are braked, thereby rotate through the drive roller bearing and drive the spline shaft sleeve and rotate, then left brake block, right brake block move to the brake disc simultaneously, when one of them brake block contacts the one end of brake disc and when producing certain extrusion force, this extrusion force can form axial thrust to spline shaft sleeve, drive spline shaft sleeve and move along its axis on the drive roller bearing, stop when another brake block contacts the other end of brake disc and produces the same extrusion force, realize promptly carrying out real-time isobaric braking to the brake disc both sides.

As a further aspect of the present invention: when the left brake block and the right brake block are connected with the driving roller in a positive and negative thread matching mode and the driving roller can move axially, a positive thread is directly arranged on one side of the outer cylindrical surface in the middle of the driving roller, a negative thread is arranged on the other side of the outer cylindrical surface, and the left brake block and the right brake block are respectively matched with the corresponding positive and negative threads on the driving roller to form a spiral transmission pair; the driving roller and the fixed brake caliper are connected by adopting an axially movable bearing, so that the driving roller can rotate and can freely move in the axial direction; when the braking is needed, the left braking block and the right braking block are driven to move towards the brake disc through the rotation of the driving rolling shaft, when one of the braking blocks is in contact with one end of the brake disc and generates certain extrusion force, the extrusion force can form axial thrust to the driving rolling shaft and drive the driving rolling shaft to move along the axis of the driving rolling shaft until the other braking block is in contact with the other end of the brake disc and generates the same extrusion force, and then the real-time isobaric braking on the two sides of the brake disc is realized.

As a further aspect of the present invention: when one brake block is connected with the driving roller in a thread matching mode, the other brake block is connected with the driving roller in a radial thrust bearing matching mode, and the driving roller cannot move axially, a spline shaft sleeve is sleeved in the middle of the driving roller and is connected with the driving roller through a spline, so that the spline shaft sleeve can rotate along with the driving roller and can move freely on the axis of the driving roller, threads are arranged on one side of the outer cylindrical surface of the spline shaft sleeve, and a thrust journal of the radial thrust bearing is arranged on the other side of the outer cylindrical surface of the spline shaft sleeve; the left brake block and the right brake block are respectively matched with corresponding threads on the spline shaft sleeve and a thrust journal of the radial thrust bearing to form a spiral transmission pair and a rotating pair; when needs are braked, thereby rotate through the drive roller and drive the spline shaft sleeve and rotate, then one of them brake pads moves to the brake disc under the screw thread effect, when this brake pads contacts the one end of brake disc and produces certain extrusion force, this extrusion force can form axial thrust to the spline shaft sleeve, drives the spline shaft sleeve and moves along its axis on the drive roller, stops when another brake pads contacts the other end of brake disc and produces the same extrusion force, realizes carrying out real-time isobaric braking to the brake disc both sides promptly.

As a further aspect of the present invention: when one of the brake blocks is connected with the driving roller in a thread matching mode, the other brake block is connected with the driving roller in a radial thrust bearing matching mode, and the driving roller can move axially, threads are directly arranged on one side of the outer cylindrical surface in the middle of the driving roller, and a thrust journal of the radial thrust bearing is arranged on the other side of the outer cylindrical surface; the left brake block and the right brake block are respectively matched with corresponding threads on the driving roller and a thrust journal of the radial thrust bearing to form a spiral transmission pair and a rotating pair; the driving roller and the fixed brake caliper are connected by adopting an axially movable bearing, so that the driving roller can rotate and can freely move in the axial direction; when braking is needed, one of the brake blocks moves towards the brake disc under the action of the threads through rotation of the driving rolling shaft, when the brake block contacts one end of the brake disc and generates certain extrusion force, the extrusion force can form axial thrust on the driving rolling shaft to drive the driving rolling shaft to move along the axis, and the brake block stops until the other brake block contacts the other end of the brake disc and generates the same extrusion force, so that real-time isobaric braking on two sides of the brake disc is realized.

The device for realizing brake block floating in the disc brake fixing caliper formed according to the method comprises a fixed brake caliper fixed on an axle, a brake disc fixed on the axle and rotating along with a wheel, and a left brake block and a right brake block positioned on two sides of the brake disc, wherein pin shaft holes are formed in corresponding positions on two sides of the left brake block and the right brake block, a pin shaft penetrates through the corresponding pin shaft holes, two ends of the pin shaft are fixed on the inner side of the fixed brake caliper, bearing seat holes are correspondingly formed in the side walls on two sides of the fixed brake caliper, bearings are arranged in the bearing seat holes, a spline shaft is arranged between the bearings to realize rotation and axial movement, the right end of the spline shaft, which extends along the axis and penetrates through the right side wall of the fixed brake caliper, is a right connecting shaft neck, and the right connecting shaft neck of the spline shaft is connected with a vehicle brake driving mechanism; the spline shaft is characterized in that an external spline is arranged on the outer cylindrical surface of the spline shaft, a spline shaft sleeve is sleeved on the spline shaft, an internal spline is arranged on the inner surface of the spline shaft sleeve, and the internal spline is in sliding connection with the external spline to realize that the spline shaft sleeve can rotate and can move along the axis of the spline shaft; the outer cylindrical surface of the spline shaft sleeve is provided with a double-thread screw structure with symmetrical positive and negative teeth; the upper ends of the left brake block and the right brake block are respectively provided with a positive thread nut and a negative thread nut, the axes of the positive thread nut and the negative thread nut are vertical to the working planes of the left brake block and the right brake block, and the positive thread nut and the negative thread nut respectively form a screw transmission pair with a positive thread section and a negative thread section on the left side and the right side of a double-threaded screw structure which are symmetrical to each other in positive and negative threads;

as a further aspect of the present invention: the spline shaft sleeve is positioned between the two bearing seat holes, the length of the spline shaft sleeve is smaller than the distance between the two side walls of the fixed brake caliper, and the spline shaft sleeve can slide along the axis of the spline shaft between the two side walls of the fixed brake caliper;

as a further aspect of the present invention: two centering and maintaining springs are respectively arranged at two ends of the spline shaft sleeve, and the other two ends of the two centering and maintaining springs are respectively abutted with the side walls at two sides of the fixed brake caliper.

The device for realizing brake block floating in the disc brake fixed caliper formed according to the method comprises a fixed brake caliper fixed on an axle, a brake disc fixed on the axle and rotating along with a wheel, and a left brake block and a right brake block positioned on two sides of the brake disc, wherein pin shaft holes are formed in corresponding positions on two sides of the left brake block and the right brake block, a pin shaft penetrates through the corresponding pin shaft holes, two ends of the pin shaft are fixed on the inner side of the fixed brake caliper, bearing seat holes II are correspondingly formed in side walls on two sides of the fixed brake caliper, axial sliding bearings are arranged in the bearing seat holes, a rolling shaft is arranged between the axial sliding bearings, the rolling shaft can rotate and can move along the axial direction of the rolling shaft, the part, extending along the axis, of the right end of the rolling shaft and penetrating through the right side wall of the fixed brake caliper is an external spline, a spline shaft sleeve is arranged between the external spline and a vehicle brake driving mechanism, the spline shaft sleeve is sleeved on the external spline, the internal spline of the spline shaft sleeve is in sliding connection with the external spline sleeve, the bearing seat hole is arranged on the right side wall of the fixed brake caliper, and the bearing seat hole is connected with the external spline of the external spline; the outer cylindrical surface of the middle part of the rolling shaft is provided with a double-end screw structure with symmetrical positive and negative teeth; the upper ends of the left brake block and the right brake block are respectively provided with a positive thread nut and a negative thread nut, the axes of the positive thread nut and the negative thread nut are vertical to the working planes of the left brake block and the right brake block, and the positive thread nut and the negative thread nut respectively form a screw transmission pair with a positive thread section and a negative thread section on the left side and the right side of a double-threaded screw structure which are symmetrical to each other in positive and negative threads;

as a further aspect of the present invention: stop rings are arranged on the rolling shafts on two sides of the double-end screw structure with symmetrical positive and negative teeth, the distance between the two stop rings is smaller than the distance between the side walls on two sides of the fixed brake caliper, and the rolling shafts can slide between the side walls on two sides of the fixed brake caliper along the axis of the rolling shafts;

as a further aspect of the present invention: two ends of a double-end screw structure with symmetrical positive and negative teeth on the roller are respectively provided with two centering and maintaining springs, and the other two ends of the two centering and maintaining springs are respectively abutted with the side walls on two sides of the fixed brake caliper.

The device for realizing brake block floating in the disc brake fixing caliper formed according to the method comprises a fixed brake caliper fixed on an axle, a brake disc fixed on the axle and rotating along with a wheel, and a left brake block and a right brake block positioned on two sides of the brake disc, wherein pin shaft holes are formed in corresponding positions on two sides of the left brake block and the right brake block, a pin shaft penetrates through the corresponding pin shaft holes, two ends of the pin shaft are fixed on the inner side of the fixed brake caliper, bearing seat holes are correspondingly formed in the side walls on two sides of the fixed brake caliper, bearings are arranged in the bearing seat holes, a spline shaft is arranged between the bearings to realize rotation and axial movement, the right end of the spline shaft, which extends along the axis and penetrates through the right side wall of the fixed brake caliper, is a right connecting shaft neck, and the right connecting shaft neck of the spline shaft is connected with a vehicle brake driving mechanism; the spline shaft is characterized in that an external spline is arranged on the outer cylindrical surface of the spline shaft, a spline shaft sleeve is sleeved on the spline shaft, an internal spline is arranged on the inner surface of the spline shaft sleeve, and the internal spline is in sliding connection with the external spline to realize that the spline shaft sleeve can rotate and can move along the axis of the spline shaft; the outer cylindrical surface of the spline shaft sleeve is provided with a thread and thrust journal structure, the left side of the thread and thrust journal structure is of a positive thread section structure, and the right side of the thread and thrust journal structure is of a double-ring journal structure of a radial thrust bearing; the upper end of the left brake block is provided with a positive nut, the axis of the positive nut is vertical to the working plane of the left brake block, the positive nut is matched with threads on the spline shaft sleeve and a positive thread section on the left side of the thrust journal structure to form a screw transmission pair, the upper end of the right brake block is provided with a thrust ring, the axis of the thrust ring is vertical to the working plane of the right brake block, and the thrust ring is matched with the threads on the spline shaft sleeve and a double-ring-shaped journal on the right side of the thrust journal structure to form a radial thrust bearing structure;

as a further aspect of the present invention: the spline shaft sleeve is positioned between the two bearing seat holes, the length of the spline shaft sleeve is smaller than the distance between the side walls of the two sides of the fixed brake caliper, and the spline shaft sleeve can slide along the axis of the spline shaft between the side walls of the two sides of the fixed brake caliper;

as a further aspect of the present invention: two centering and maintaining springs are coaxially arranged at two ends of the spline shaft sleeve respectively, and the other two ends of the two centering and maintaining springs are respectively abutted with the side walls at two sides of the fixed brake caliper.

The device for realizing brake block floating in the disc brake fixed caliper formed according to the method comprises a fixed brake caliper fixed on an axle, a brake disc fixed on the axle and rotating along with a wheel, and a left brake block and a right brake block positioned on two sides of the brake disc, wherein pin shaft holes are formed in corresponding positions on two sides of the left brake block and the right brake block, a pin shaft penetrates through the corresponding pin shaft holes, two ends of the pin shaft are fixed on the inner side of the fixed brake caliper, bearing seat holes II are correspondingly formed in side walls on two sides of the fixed brake caliper, axial sliding bearings are arranged in the bearing seat holes, a rolling shaft is arranged between the axial sliding bearings, the rolling shaft can rotate and can move along the axial direction of the rolling shaft, the part of the right end of the rolling shaft, which extends through the right side wall of the fixed brake caliper along the axial direction, is an external spline, a spline shaft sleeve is arranged between the external spline and a vehicle brake driving mechanism, the spline shaft sleeve is sleeved on the external spline, the internal spline of the spline shaft sleeve is in a sliding connection with the external spline sleeve, the external spline sleeve can rotate along the spline sleeve and can move along the axial direction of the spline sleeve, the bearing seat hole is connected with the external circle of the bearing sleeve, and the bearing mechanism, the bearing of the bearing sleeve is connected with the external spline; the outer cylindrical surface of the middle part of the roller is provided with a thread and thrust journal structure, the left side of the thread and thrust journal structure is a thread section structure of a positive tooth, and the right side of the thread and thrust journal structure is a double-ring-shaped journal structure of a radial thrust bearing; the upper end of the left brake block is provided with a positive nut, the axis of the positive nut is vertical to the working plane of the left brake block, the positive nut is matched with the threads on the roller and the positive thread section on the left side of the thrust journal structure to form a screw transmission pair, the upper end of the right brake block is provided with a thrust ring, the axis of the thrust ring is vertical to the working plane of the right brake block, and the thrust ring is matched with the threads on the roller and the double-ring-shaped journal on the right side of the thrust journal structure to form a radial thrust bearing structure;

as a further aspect of the present invention: stop rings are arranged on the rolling shafts on two sides of the thread and thrust journal structure, the distance between the two stop rings is smaller than the distance between the side walls on two sides of the fixed brake caliper, and the rolling shafts can slide between the side walls on two sides of the fixed brake caliper along the axis of the rolling shafts;

as a further aspect of the present invention: two centering and maintaining springs are respectively arranged at two ends of a thread on the roller and a thrust journal structure, and the other two ends of the two centering and maintaining springs are respectively abutted against the side walls at two sides of the fixed brake caliper.

By adopting the above scheme, compared with the prior art, the utility model discloses utilize the vice transmission torque that spline shaft slip hookup spline axle sleeve formed to the double-threaded screw structure (or screw thread and thrust journal structure) of the positive and negative tooth symmetry that coaxial line set up to drive and produce axial motion and the axial force that moves in opposite directions between the positive nut and the negative nut (or positive nut and thrust ring) of this double-threaded screw structure both sides complex, thereby make and can produce axial motion and axial force that moves in opposite directions between the left brake block and the right brake block of making an organic whole with positive nut and negative nut (or positive nut and thrust ring), and left brake block and right brake block can also slide along the axis of spline shaft together, therefore left brake block and right brake block can exert equal pressure to the both sides terminal surface of brake disc simultaneously, on whole fixed brake caliper except that spiral transmission vice and brake block have other sliders, fixed caliper and mechanical transmission's advantage has been fully overcome, the shortcoming of floating brake caliper and hydraulic drive has improved disc brake's braking performance, it is small to have the brake body size, the structure is simple, the stable performance of the caliper, the safety performance, the mechanical control system is suitable for the mechanical expansion of the EMB, the integral drive mechanism is suitable for the ABS, the automobile drive mechanism, the integral control system, it is suitable for the automobile very low cost is suitable for the automobile.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fourth embodiment of the present invention.

Description of reference numerals: 1 fixing a brake caliper; 11 bearing housing holes; 12, bearing seat hole I; 13 bearing seat hole II; 2, spline shafts; 21 an external spline; 22 right coupling journal; 23 blocking the ring; 24 rollers; 3 spline shaft sleeve; 31 an internal spline; 32, a first bearing seat; 33 outer circle; 41 left brake pad; 42 a right brake pad; 43 pin shaft holes; 411 an orthodontic nut; 421 anti-thread nut; 5, a double-end screw structure with symmetrical positive and negative teeth; 51 an orthodontic threaded segment; 52 a thread section of the contra-thread; 53 thread and thrust journal configuration; 54 thread and thrust journal configuration; 6, a pin shaft; 7, a bearing; 71 an axial sliding bearing; 72 a radial thrust bearing structure; 721 a dual annular journal; a 722 thrust ring; 73 bearing I; 74 a radial thrust bearing structure; 741 a double annular journal; 742 the thrust collar; 8 centering the retaining spring; 9 brake disc.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in further detail below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 and 2, a method for realizing brake block floating in a disc brake fixed caliper, which uses the same driving roller to respectively drive a left brake block and a right brake block to lean against or to be far away from a brake disc between the left brake block and the right brake block, so as to realize that the left brake block and the right brake block lean against or to be far away from the brake disc between the left brake block and the right brake block with real-time equal extrusion force, thereby realizing real-time equal pressure braking on two sides of the brake disc; the two sides of the driving roller are fixed in a fixed brake caliper on an axle through bearings, the upper ends of the left brake block and the right brake block are sleeved on the driving roller, one brake block and the driving roller are ensured to adopt a positive thread matching mode, the other brake block correspondingly adopts a reverse thread matching mode or a centripetal thrust bearing matching mode, the driving end of the driving roller is connected with a brake driving mechanism of a vehicle, and the brake driving mechanism is used for controlling the rotation of the driving roller; when the left brake block and the right brake block are connected with the driving roller in a positive and negative thread matching mode and the driving roller cannot move axially, the spline shaft sleeve is sleeved in the middle of the driving roller and connected with the driving roller through a spline, so that the spline shaft sleeve can rotate along with the driving roller and can move freely on the axis of the driving roller, positive threads are arranged on one side of the outer cylindrical surface of the spline shaft sleeve, and negative threads are arranged on the other side of the outer cylindrical surface of the spline shaft sleeve; the left brake block and the right brake block are respectively matched with corresponding positive threads and corresponding negative threads on the spline shaft sleeve to form a spiral transmission pair; when needing to brake, thereby rotate through the drive roller bearing and drive the spline shaft sleeve and rotate, then left brake pad, right brake pad move to the brake disc simultaneously, when one of them brake pad contacts the one end of brake disc and produces certain extrusion force, this extrusion force can form axial thrust to spline shaft sleeve, drive spline shaft sleeve and move along its axis on the drive roller bearing, stop (if the continuous external force that applies of brake actuating mechanism, above-mentioned action can so relapse, until the brake pad can not move) when another brake pad contacts the other end of brake disc and produces the same extrusion force, realize carrying out real-time isobaric braking to brake disc both sides promptly.

The device for realizing brake block floating in the disc brake fixing caliper formed according to the method comprises a fixed brake caliper 1 fixed on an axle, a brake disc 9 fixed on the axle and rotating along with a wheel, and a left brake block 41 and a right brake block 42 positioned at two sides of the brake disc 9, wherein pin shaft holes 43 are respectively arranged at corresponding positions at two sides of the left brake block 41 and the right brake block 42, a pin shaft 6 passes through the corresponding pin shaft hole 43, two ends of the pin shaft 6 are fixed at the inner side of the fixed brake caliper 1, bearing seat holes 11 are correspondingly arranged on the side walls at two sides of the fixed brake caliper 1, bearings 7 are arranged in the bearing seat holes 11, a spline shaft 2 is arranged between the bearings 7, the spline shaft 2 can rotate and can not move axially, the part of the right end of the spline shaft 2 extending through the right side wall of the fixed brake caliper 1 along the axis is a right connecting shaft neck 22, and the right connecting shaft neck 22 of the spline shaft 2 is connected with a vehicle brake driving mechanism;

the spline shaft 2 is provided with an external spline 21 on the outer cylindrical surface, the spline shaft 2 is sleeved with a spline shaft sleeve 3, the inner surface of the spline shaft sleeve 3 is provided with an internal spline 31, and the internal spline 31 is in sliding connection with the external spline 21 to realize that the spline shaft sleeve 3 can rotate and can move along the axis of the spline shaft 2;

the outer cylindrical surface of the spline shaft sleeve 3 is provided with a double-thread screw structure 5 with symmetrical positive and negative teeth;

the upper ends of the left brake block 41 and the right brake block 42 are respectively provided with an orthodontic nut 411 and a counter nut 421, the axes of the orthodontic nut 411 and the counter nut 421 are vertical to the working planes of the left brake block 41 and the right brake block 42, and the orthodontic nut 411 and the counter nut 421 respectively form a screw transmission pair with an orthodontic threaded section 51 and a counter threaded section 52 on the left side and the right side of the double-threaded screw structure 5 which are symmetrical with the positive and negative teeth;

the spline shaft sleeve 3 is positioned between the two bearing seat holes 11, the length of the spline shaft sleeve 3 is smaller than the distance between the two side walls of the fixed brake caliper 1, and the spline shaft sleeve 3 can slide along the axis of the spline shaft 2 between the two side walls of the fixed brake caliper 1;

two centering and maintaining springs 8 are respectively arranged at two ends of the spline shaft sleeve 3, and the other two ends of the two centering and maintaining springs 8 are respectively abutted with the side walls at two sides of the fixed brake caliper 1.

Example two:

as shown in fig. 3, in the method, a same driving roller is used to drive a left brake pad and a right brake pad to lean against or separate from a brake disc between the left brake pad and the right brake pad, respectively, so as to realize that the left brake pad and the right brake pad lean against or separate from the brake disc between the left brake pad and the right brake pad with real-time equal extrusion force, thereby realizing real-time equal-pressure braking on two sides of the brake disc, wherein two sides of the driving roller are fixed in a fixed brake caliper on an axle through bearings, the upper ends of the left brake pad and the right brake pad are sleeved on the driving roller, so as to ensure that one brake pad and the driving roller adopt a positive thread fit mode, the other brake pad correspondingly adopts a reverse thread fit mode or a centripetal thrust bearing fit mode, the driving end of the driving roller is coupled with a brake driving mechanism of a vehicle, so as to realize that the brake driving mechanism controls the rotation of the driving roller; when the left brake block and the right brake block are connected with the driving rolling shaft in a positive and negative thread matching mode and the driving rolling shaft can move axially, a positive thread is directly arranged on one side of the outer cylindrical surface in the middle of the driving rolling shaft, a negative thread is arranged on the other side of the outer cylindrical surface, and the left brake block and the right brake block are respectively matched with the corresponding positive thread and the corresponding negative thread on the driving rolling shaft to form a spiral transmission pair respectively; the driving roller and the fixed brake caliper are connected by adopting an axially movable bearing, so that the driving roller can rotate and can freely move in the axial direction; when braking is needed, the left brake block and the right brake block are driven to move towards the brake disc through rotation of the driving rolling shaft, when one brake block contacts one end of the brake disc and generates certain extrusion force, the extrusion force can form axial thrust to the driving rolling shaft to drive the driving rolling shaft to move along the axis of the driving rolling shaft, until the other brake block contacts the other end of the brake disc and generates the same extrusion force, if the external force is continuously applied by the brake driving mechanism, the actions can be repeated until the brake blocks cannot move, and real-time isobaric braking on two sides of the brake disc is achieved.

The device for realizing brake block floating in the disc brake fixed caliper formed according to the method comprises a fixed brake caliper 1 fixed on an axle, a brake disc 9 fixed on the axle and rotating along with a wheel, and a left brake block 41 and a right brake block 42 positioned at two sides of the brake disc 9, wherein pin shaft holes 43 are respectively arranged at corresponding positions at two sides of the left brake block 41 and the right brake block 42, a pin shaft 6 passes through the corresponding pin shaft hole 43, two ends of the pin shaft 6 are fixed at the inner side of the fixed brake caliper 1, bearing seat holes two 13 are correspondingly arranged on the side walls at two sides of the fixed brake caliper 1, axial sliding bearings 71 are arranged in the bearing seat holes two 13, rolling shafts 24 are arranged between the axial sliding bearings 71, and the rolling shafts 24 can rotate and move along the axial direction thereof, the right end of the roller 24 penetrates through the right side wall of the fixed brake caliper 1 along the axis in an extending mode, the part is an external spline 21, a spline shaft sleeve 3 is arranged between the external spline 21 and a vehicle brake driving mechanism, the spline shaft sleeve 3 is sleeved on the external spline 21, an internal spline 31 of the spline shaft sleeve 3 is in sliding connection with the external spline 21, the external spline 21 can rotate along with the spline shaft sleeve 3 and can move along the axis of the spline shaft sleeve, a bearing seat I32 is arranged at the left end of the spline shaft sleeve 3, the bearing seat I32 is hinged in a bearing seat hole I12 formed in the outer wall of the right side wall of the fixed brake caliper 1 through a bearing I73, the bearing I73 is identical to the axis of the roller 24, and an excircle 33 of the spline shaft sleeve 3 is in gear structure and connected with the vehicle brake driving mechanism;

the outer cylindrical surface of the middle part of the roller 24 is provided with a double-thread screw structure 5 with symmetrical positive and negative teeth;

the upper ends of the left brake block 41 and the right brake block 42 are respectively provided with a positive nut 411 and a negative nut 421, the axes of the positive nut 411 and the negative nut 421 are vertical to the working planes of the left brake block 41 and the right brake block 42, and the positive nut 411 and the negative nut 421 respectively form a screw transmission pair with a positive thread section 51 and a negative thread section 52 on the left side and the right side of the double-thread screw structure 5 which are symmetrical with positive teeth and negative teeth;

stop rings 23 are arranged on the rolling shafts 24 on two sides of the double-thread screw structure 5 with symmetrical positive and negative teeth, the distance between the two stop rings 23 is smaller than the distance between the side walls on two sides of the fixed brake caliper 1, and the rolling shafts 24 can slide along the axial line of the rolling shafts 24 between the side walls on two sides of the fixed brake caliper 1;

two centering and maintaining springs 8 are respectively arranged at two ends of the double-end screw structure 5 with symmetrical positive and negative teeth on the roller 24, and the other two ends of the two centering and maintaining springs 8 are respectively abutted with the side walls of two sides of the fixed brake caliper 1.

Example three:

as shown in fig. 4, in the method for realizing brake pad floating in the fixed caliper of the disc brake, the same driving roller is used for respectively driving the left brake pad and the right brake pad to lean against or be far away from the brake disc between the left brake pad and the right brake pad, so that the left brake pad and the right brake pad lean against or be far away from the brake disc between the left brake pad and the right brake pad with real-time equal extrusion force, and thus, real-time equal-pressure braking is carried out on two sides of the brake disc; the two sides of the driving roller are fixed in a fixed brake caliper on an axle through bearings, the upper ends of the left brake block and the right brake block are sleeved on the driving roller, one brake block and the driving roller are ensured to adopt a positive thread matching mode, the other brake block correspondingly adopts a reverse thread matching mode or a centripetal thrust bearing matching mode, the driving end of the driving roller is connected with a brake driving mechanism of a vehicle, and the brake driving mechanism is used for controlling the rotation of the driving roller; when one of the brake blocks is connected with the driving roller in a thread matching mode, the other brake block is connected with the driving roller in a radial thrust bearing matching mode, and the driving roller cannot move axially, the middle part of the driving roller is sleeved with a spline shaft sleeve which is connected with the driving roller through a spline, so that the spline shaft sleeve can rotate along with the driving roller and can move freely on the axis of the driving roller, one side of the outer cylindrical surface of the spline shaft sleeve is provided with threads, and the other side of the outer cylindrical surface of the spline shaft sleeve is provided with a thrust journal of the radial thrust bearing; the left brake block and the right brake block are respectively matched with corresponding threads on the spline shaft sleeve and a thrust journal of the radial thrust bearing to form a spiral transmission pair and a rotating pair; when braking is needed, the spline shaft sleeve is driven to rotate through the rotation of the driving rolling shaft, one of the brake blocks moves towards the brake disc under the action of the threads, when the brake blocks contact one end of the brake disc and generate certain extrusion force, the extrusion force can form axial thrust on the spline shaft sleeve and drive the spline shaft sleeve to move on the driving rolling shaft along the axis of the spline shaft sleeve, until the other brake block contacts the other end of the brake disc and generates the same extrusion force, if the brake driving mechanism continuously applies external force, the actions can be repeated until the brake blocks cannot move, and real-time equal-pressure braking on two sides of the brake disc is realized.

the outer cylindrical surface of the spline shaft sleeve 3 is provided with a thread and thrust journal structure 53, the left side of the thread and thrust journal structure 53 is provided with a thread section 51 structure, and the right side is provided with a double-ring-shaped journal (721) structure of the radial thrust bearing;

the upper end of the left brake block 41 is provided with an orthodontic nut 411, the axis of the orthodontic nut 411 is vertical to the working plane of the left brake block 41, the orthodontic nut 411 is matched with the thread on the spline shaft sleeve 3 and the orthodontic thread section 51 on the left side of the thrust journal structure 53 to form a screw transmission pair, the upper end of the right brake block 42 is provided with a thrust ring (722), the axis of the thrust ring (722) is vertical to the working plane of the right brake block 42, and the thrust ring (722) is matched with the thread on the spline shaft sleeve 3 and the double-ring-shaped journal (721) on the right side of the thrust journal structure 53 to form a centripetal thrust bearing structure 72;

Example four:

as shown in fig. 5, in the method for realizing brake pad floating in the fixed caliper of the disc brake, the same driving roller is used to respectively drive the left brake pad and the right brake pad to lean against or be far away from the brake disc between the left brake pad and the right brake pad, so that the left brake pad and the right brake pad lean against or be far away from the brake disc between the left brake pad and the right brake pad with real-time equal extrusion force, thereby realizing real-time equal-pressure braking on two sides of the brake disc; the two sides of the driving roller are fixed in a fixed brake caliper on an axle through bearings, the upper ends of the left brake block and the right brake block are sleeved on the driving roller, one brake block and the driving roller are ensured to adopt a positive thread matching mode, the other brake block correspondingly adopts a reverse thread matching mode or a centripetal thrust bearing matching mode, the driving end of the driving roller is connected with a brake driving mechanism of a vehicle, and the brake driving mechanism is used for controlling the rotation of the driving roller; when one of the brake blocks is connected with the driving roller in a thread matching mode, the other brake block is connected with the driving roller in a radial thrust bearing matching mode, and the driving roller can move axially, threads are directly arranged on one side of the outer cylindrical surface in the middle of the driving roller, and a thrust journal of the radial thrust bearing is arranged on the other side of the outer cylindrical surface; the left brake block and the right brake block are respectively matched with corresponding threads on the driving roller and a thrust journal of the radial thrust bearing to form a spiral transmission pair and a rotating pair; the driving roller and the fixed brake caliper are connected by adopting an axially movable bearing, so that the driving roller can rotate and can freely move in the axial direction; when braking is needed, one of the brake blocks moves towards the brake disc under the action of the threads through rotation of the driving rolling shaft, when the brake block contacts one end of the brake disc and generates certain extrusion force, the extrusion force can form axial thrust on the driving rolling shaft to drive the driving rolling shaft to move along the axis, and if the brake driving mechanism continuously applies external force until the other brake block contacts the other end of the brake disc and generates the same extrusion force, the actions are repeated until the brake blocks cannot move, and real-time isobaric braking on two sides of the brake disc is achieved.

The device for realizing brake block floating in the disc brake fixed caliper formed according to the method comprises a fixed brake caliper 1 fixed on an axle, a brake disc 9 fixed on the axle and rotating along with a wheel, and a left brake block 41 and a right brake block 42 positioned at two sides of the brake disc 9, wherein pin shaft holes 43 are respectively arranged at corresponding positions at two sides of the left brake block 41 and the right brake block 42, a pin shaft 6 passes through the corresponding pin shaft hole 43, two ends of the pin shaft 6 are fixed at the inner side of the fixed brake caliper 1, bearing seat holes two 13 are correspondingly arranged on the side walls at two sides of the fixed brake caliper 1, axial sliding bearings 71 are arranged in the bearing seat holes two 13, a rolling shaft 24 is arranged between the axial sliding bearings 71, and the rolling shaft 24 can rotate and move along the axial direction thereof, the right end of the roller 24 penetrates through the right side wall of the fixed brake caliper 1 along the axis in an extending mode, the part is an external spline 21, a spline shaft sleeve 3 is arranged between the external spline 21 and a vehicle brake driving mechanism, the spline shaft sleeve 3 is sleeved on the external spline 21, an internal spline 31 of the spline shaft sleeve 3 is in sliding connection with the external spline 21, the external spline 21 can rotate along with the spline shaft sleeve 3 and can move along the axis of the spline shaft sleeve, a bearing seat I32 is arranged at the left end of the spline shaft sleeve 3, the bearing seat I32 is hinged in a bearing seat hole I12 formed in the outer wall of the right side wall of the fixed brake caliper 1 through a bearing I73, the bearing I73 is identical to the axis of the roller 24, and an excircle 33 of the spline shaft sleeve 3 is in gear structure and connected with the vehicle brake driving mechanism;

the outer cylindrical surface of the middle part of the roller 24 is provided with a thread and thrust journal structure 54, the left side of the thread and thrust journal structure 54 is of a thread section 51 structure of a positive thread, and the right side of the thread and thrust journal structure is of a double-ring-shaped journal 741 structure of a radial thrust bearing;

an orthodontic nut 411 is arranged at the upper end of the left brake block 41, the axis of the orthodontic nut 411 is vertical to the working plane of the left brake block 41, the orthodontic nut 411 is matched with threads on the roller 24 and an orthodontic threaded section 51 on the left side of a thrust journal structure 54 to form a screw transmission pair, a thrust collar 742 is arranged at the upper end of the right brake block 42, the axis of the thrust collar 742 is vertical to the working plane of the right brake block 42, and the thrust collar 742 is matched with the threads on the roller 24 and a double-ring-shaped journal 741 on the right side of the thrust journal structure 54 to form a radial thrust bearing structure 74;

stop rings 23 are arranged on the rollers 24 at two sides of the thread and thrust journal structure 54, the distance between the two stop rings 23 is smaller than the distance between the two side walls of the fixed brake caliper 1, and the rollers 24 can slide along the axis of the rollers 24 between the two side walls of the fixed brake caliper 1;

two centering and retaining springs 8 are respectively arranged at two ends of the screw thread on the roller 24 and the thrust journal structure 54, and the other two ends of the two centering and retaining springs 8 are respectively abutted with the side walls of two sides of the fixed brake caliper (1).

When in specific application

The driving end of the driving roller of the disc brake is coupled with the braking driving mechanism of the vehicle, the braking driving mechanism of the vehicle controls the spline shaft 2 or the roller 24 to rotate forward and backward, and the left brake block 41 and the right brake block 42 can also slide along the axis of the spline shaft 2 or the roller 24 (parallel to the axis of the brake disc 9), when braking, the left brake block 41 and the right brake block 42 which are respectively arranged at two sides of the brake disc 9 simultaneously apply equal braking pressure to two end surfaces of the brake disc 9, the braking force generated by braking is transmitted to the vehicle axle from the left brake block 41 and the right brake block 42 through the pin shaft 6 and the fixed brake caliper 1, the driving roller only provides the braking pressure applied by the left brake block 41 and the right brake block 42 to two end surfaces of the brake disc 9, when braking is released, the centering and maintaining spring 8 enables the working planes of the left brake block 41 and the right brake block 42 to have a uniform and stable separation distance with the two end surfaces of the brake disc 9.

A plurality of the devices can be correspondingly arranged on the side walls on two sides of the fixed brake caliper along the outer circumferential line of the brake disc by using the method to drive one or more pairs of left brake blocks and right brake blocks to carry out real-time isobaric braking on two sides of the brake disc, so that the braking pressure applied to the end surface of the brake disc by the whole brake blocks is uniform and stable.

Those not described in detail in this specification are well within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a realize device that brake block floats in fixed pincers of disc brake, is including fixing fixed brake caliper (1) on the axle, fixes on the axletree along with wheel pivoted brake disc (9) to and be located left brake block (41) and right brake block (42) of brake disc (9) both sides, all be provided with round pin shaft hole (43) in left brake block (41) and right brake block (42) both sides correspondence position, round pin axle (6) pass corresponding round pin shaft hole (43) just the inboard at fixed brake caliper (1) is fixed at round pin axle (6) both ends, its characterized in that:

bearing seat holes (11) are correspondingly formed in the side walls of two sides of the fixed brake caliper (1), bearings (7) are arranged in the bearing seat holes (11), a spline shaft (2) is arranged between the bearings (7) to realize that the spline shaft (2) can rotate and can not move axially, the right end of the spline shaft (2) is provided with a right connecting journal (22) after extending through the right side wall of the fixed brake caliper (1) along the axis, and the right connecting journal (22) of the spline shaft (2) is connected with a vehicle brake driving mechanism;

an external spline (21) is arranged on the outer cylindrical surface of the spline shaft (2), a spline shaft sleeve (3) is sleeved on the spline shaft (2), an internal spline (31) is arranged on the inner surface of the spline shaft sleeve (3), and the internal spline (31) is in sliding connection with the external spline (21) to realize that the spline shaft sleeve (3) can rotate and can move along the axis of the spline shaft (2);

the outer cylindrical surface of the spline shaft sleeve (3) is provided with a double-thread screw structure (5) with symmetrical positive and negative teeth;

the upper ends of the left brake block (41) and the right brake block (42) are respectively provided with an orthodontic nut (411) and a counter nut (421), the axes of the orthodontic nut (411) and the counter nut (421) are vertical to the working planes of the left brake block (41) and the right brake block (42), and the orthodontic nut (411) and the counter nut (421) respectively form a screw transmission pair with an orthodontic thread section (51) and a counter thread section (52) on the left side and the right side of the double-thread screw structure (5) which are symmetrical to each other in terms of positive and negative teeth;

the spline shaft sleeve (3) is positioned between the two bearing seat holes (11), the length of the spline shaft sleeve (3) is smaller than the distance between the side walls of the two sides of the fixed brake caliper (1), and the spline shaft sleeve (3) can slide along the axis of the spline shaft (2) between the side walls of the two sides of the fixed brake caliper (1);

two centering and maintaining springs (8) are respectively arranged at two ends of the spline shaft sleeve (3), and the other two ends of the two centering and maintaining springs (8) are respectively abutted with the side walls of two sides of the fixed brake caliper (1).

2. The utility model provides a realize device that brake block floats in fixed pincers of disc brake, is including fixing fixed brake caliper (1) on the axle, fixes on the axletree along with wheel pivoted brake disc (9) to and be located left brake block (41) and right brake block (42) of brake disc (9) both sides, all be provided with round pin shaft hole (43) in left brake block (41) and right brake block (42) both sides correspondence position, round pin axle (6) pass corresponding round pin shaft hole (43) just the inboard at fixed brake caliper (1) is fixed at round pin axle (6) both ends, its characterized in that:

the brake caliper comprises a fixed brake caliper body (1), wherein two bearing seat holes (13) are correspondingly formed in side walls on two sides of the fixed brake caliper body (1), axial sliding bearings (71) are arranged in the bearing seat holes (13), rolling shafts (24) are arranged between the axial sliding bearings (71), the rolling shafts (24) can rotate and can move axially, the right ends of the rolling shafts (24) extend through the right side wall of the fixed brake caliper body (1) along the axis to form external splines (21), spline shaft sleeves (3) are arranged between the external splines (21) and a vehicle brake driving mechanism, the spline shaft sleeves (3) are sleeved on the external splines (21), the internal splines (31) of the spline shaft sleeves (3) are connected with the external splines (21) in a sliding mode, the external splines (21) can rotate along with the spline shaft sleeves (3) and can move along the axis of the spline shaft sleeves, a bearing seat I (32) is arranged at the left end of the spline shaft sleeves (3), the bearing seat I (32) is hinged to the bearing seat holes (12) arranged in the outer wall of the right side wall of the fixed brake caliper body (1) through the bearing I (73), and the bearing (73) is connected with the vehicle brake gear mechanism;

the outer cylindrical surface of the middle part of the rolling shaft (24) is provided with a double-thread screw structure (5) with symmetrical positive and negative teeth;

stop rings (23) are arranged on the rolling shafts (24) on two sides of the double-end screw structure (5) with symmetrical positive and negative teeth, the distance between the two stop rings (23) is smaller than the distance between the side walls on two sides of the fixed brake caliper (1), and the rolling shafts (24) can slide along the axis of the rolling shafts (24) between the side walls on two sides of the fixed brake caliper (1);

two centering and maintaining springs (8) are respectively arranged at two ends of a double-end screw structure (5) with symmetrical positive and negative teeth on a rolling shaft (24), and the other two ends of the two centering and maintaining springs (8) are respectively abutted against the side walls of two sides of the fixed brake caliper (1).

3. The utility model provides a realize device that brake block floats in fixed pincers of disc brake, is including fixing fixed brake caliper (1) on the axle, fixes on the axletree along with wheel pivoted brake disc (9) to and be located left brake block (41) and right brake block (42) of brake disc (9) both sides, all be provided with round pin shaft hole (43) in left brake block (41) and right brake block (42) both sides correspondence position, round pin axle (6) pass corresponding round pin shaft hole (43) just the inboard at fixed brake caliper (1) is fixed at round pin axle (6) both ends, its characterized in that:

the outer cylindrical surface of the spline shaft sleeve (3) is provided with a thread and thrust journal structure (53), the left side of the thread and thrust journal structure (53) is of a thread section (51) structure, and the right side of the thread and thrust journal structure is of a double-ring-shaped journal (721) structure of the angular contact thrust bearing;

the upper end of the left brake block (41) is provided with an orthodontic nut (411), the axis of the orthodontic nut (411) is vertical to the working plane of the left brake block (41), the orthodontic nut (411) is matched with threads on the spline shaft sleeve (3) and an orthodontic thread section (51) on the left side of a thrust journal structure (53) to form a screw transmission pair, the upper end of the right brake block (42) is provided with a thrust ring (722), the axis of the thrust ring (722) is vertical to the working plane of the right brake block (42), and the thrust ring (722) is matched with the threads on the spline shaft sleeve (3) and a double-ring-shaped journal (721) on the right side of the thrust journal structure (53) to form a radial thrust bearing structure (72);

two centering and maintaining springs (8) are respectively arranged at two ends of the spline shaft sleeve (3), and the other two ends of the two centering and maintaining springs (8) are respectively abutted against the side walls of two sides of the fixed brake caliper (1).

4. The utility model provides a realize device that brake block floats in fixed pincers of disc brake, is including fixing fixed brake caliper (1) on the axle, fixes on the axletree along with wheel pivoted brake disc (9) to and be located left brake block (41) and right brake block (42) of brake disc (9) both sides, all be provided with round pin shaft hole (43) in left brake block (41) and right brake block (42) both sides correspondence position, round pin axle (6) pass corresponding round pin shaft hole (43) just the inboard at fixed brake caliper (1) is fixed at round pin axle (6) both ends, its characterized in that:

the brake caliper comprises a fixed brake caliper (1), wherein two bearing seat holes (13) are correspondingly formed in side walls on two sides of the fixed brake caliper (1), axial sliding bearings (71) are arranged in the bearing seat holes (13), rolling shafts (24) are arranged between the axial sliding bearings (71), the rolling shafts (24) can rotate and can move axially along the rolling shafts, the right ends of the rolling shafts (24) extend through the right side wall of the fixed brake caliper (1) along the axial line to form external splines (21), spline shaft sleeves (3) are arranged between the external splines (21) and a vehicle brake driving mechanism, the spline shaft sleeves (3) are sleeved on the external splines (21), the internal splines (31) of the spline shaft sleeves (3) are connected with the external splines (21) in a sliding mode, the external splines (21) can rotate along with the spline shaft sleeves (3) and can move along the axial line of the external splines, a bearing seat I (32) is arranged at the left end of the spline shaft sleeves (3), the bearing seat I (32) is hinged to the bearing seat holes (12) arranged in the outer wall of the right side wall of the fixed brake caliper (1) through the bearing I (73), and the bearing (73) is connected with a vehicle brake gear mechanism;

the outer cylindrical surface of the middle part of the rolling shaft (24) is provided with a thread and thrust journal structure (54), the left side of the thread and thrust journal structure (54) is of a thread section (51) structure, and the right side of the thread and thrust journal structure is of a double-ring-shaped journal (741) structure of the radial thrust bearing;

the upper end of the left brake block (41) is provided with an orthodontic nut (411), the axis of the orthodontic nut (411) is vertical to the working plane of the left brake block (41), the orthodontic nut (411) is matched with threads on a roller (24) and an orthodontic thread section (51) on the left side of a thrust journal structure (54) to form a spiral transmission pair, the upper end of the right brake block (42) is provided with a thrust collar (742), the axis of the thrust collar (742) is vertical to the working plane of the right brake block (42), and the thrust collar (742) is matched with the threads on the roller (24) and a double-ring-shaped journal (741) on the right side of the thrust journal structure (54) to form a centripetal thrust bearing structure (74);

stop rings (23) are arranged on the rolling shafts (24) on two sides of the thread and thrust journal structure (54), the distance between the two stop rings (23) is smaller than the distance between the side walls on two sides of the fixed brake caliper (1), and the rolling shafts (24) can slide along the axis of the rolling shafts (24) between the side walls on two sides of the fixed brake caliper (1);

two centering and maintaining springs (8) are respectively arranged at two ends of a thread on the roller (24) and a thrust journal structure (54), and the other two ends of the two centering and maintaining springs (8) are respectively abutted with the side walls of two sides of the fixed brake caliper (1).