Floating caliper brake
Technical Field
The invention relates to the technical field of vehicle braking systems, in particular to a floating caliper brake.
Background
In the floating caliper brake for the automobile, a brake pad is clamped and installed through a layer of U-shaped reed arranged on a bracket, wherein the U-shaped reed is fixedly arranged in a groove on the bracket, and the brake pad is elastically clamped and installed in the U-shaped reed and can reciprocate relative to the U-shaped reed so as to move to contact with a brake disc to brake under the action of the clamping force of a brake caliper. The brake pad is clamped and installed by the U-shaped reed, so that on one hand, the force of the brake pad acts on the support through the reed to protect the support, and on the other hand, the brake pad can be prevented from loosening to generate impact abnormal sound when the brake pad is driven. However, due to the elastic clamping action of the U-shaped reed, the brake pad is blocked during movement, and after the brake pad contacts with the brake disc for braking, the brake pad cannot be completely separated from the brake disc, so that drag resistance is generated, and the energy consumption of a vehicle is increased, the abrasion of the brake disc and the brake pad is increased, and the service life is shortened.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the floating caliper brake which can save energy consumption, reduce the abrasion loss of a brake pad and a brake disc, delay the service life, realize automatic compensation of abrasion loss, and has the advantages of simple and compact structure, easy manufacture and low cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a floating caliper brake, includes support and brake block, the brake block is installed on the support with the mode that can reciprocate rectilinear motion through two connecting pieces that are located brake block both ends respectively, the connecting piece includes outer connecting portion and interior connecting portion, outer connecting portion are installed on the support, interior connecting portion are equipped with elasticity centre gripping brake block and allow the reciprocal rectilinear motion's of brake block mounting groove, interior connecting portion link to each other and can reciprocate rectilinear motion with outer connecting portion through elastic connection portion with outer connecting portion, the effort that elastic connection portion elastic deformation required is less than the static friction between brake block and the interior connecting portion.
As a further improvement of the above technical scheme:
The inner connecting portion is provided with a limiting portion for limiting the movement stroke of the inner connecting portion when the inner connecting portion moves to the braking direction relative to the outer connecting portion.
The connecting piece is an integral piece formed by bending a plate.
The plate comprises a first part, a second part and a middle part, wherein the first part and the second part are respectively connected to two sides of the middle part, the first part is bent to form a U-shaped structure to serve as the outer connecting part, the second part is bent to form a U-shaped structure to serve as the inner connecting part, the middle part is bent to form an elastic connecting part of the U-shaped structure, the elastic connecting part enables the inner connecting part to be located in a groove formed by the outer connecting part, and the inner connecting part can reciprocate in the groove relative to the outer connecting part.
The elastic connecting portion comprises a bottom edge, a first side edge and a second side edge, wherein the first side edge and the second side edge are respectively connected with two side edges of the bottom edge to form a U-shaped groove, the first side edge is connected with the outer connecting portion, and the second side edge is connected with the inner connecting portion and serves as the limiting portion.
The bottom edge is in an arc shape concave inwards towards the outer part of the U-shaped groove, so that the width of the bottom of the U-shaped groove is larger than that of the opening end.
The elastic connecting part is positioned outside the groove formed by the outer connecting part.
The support is provided with a positioning groove, and the outer connecting part is arranged in the positioning groove.
The inner connecting part comprises a bottom plate part and two side plate parts, the two side plate parts are respectively connected to two sides of the bottom plate part to form the mounting groove, and one end, far away from the bottom plate part, of at least one side plate part is bent to form an elastic positioning part protruding towards the inside of the mounting groove.
Compared with the prior art, the invention has the advantages that:
In the floating caliper brake, the inner connecting part is connected with the outer connecting part through the elastic connecting part, so that the inner connecting part can reciprocate linearly relative to the outer connecting part, meanwhile, the acting force required by elastic deformation of the elastic connecting part is smaller than the static friction force between the brake pad and the inner connecting part, when the brake pad is driven to move by adopting the driver to brake, the brake pad can drive the inner connecting part to move relative to the outer connecting part so as to force the elastic connecting part to deform, when the elastic connecting part is deformed insufficiently, the brake pad can move further relative to the inner connecting part to the braking position (the position attached to the brake disc), after the braking is finished, the elastic restoring action of the elastic connecting part can force the inner connecting part to move in the reverse braking direction of the brake pad to reset. And after the brake plate is worn to a certain extent, the brake plate can also move relative to the inner connecting part in the braking process, so that the automatic compensation of the wear amount is realized, and the braking effect is ensured. The floating caliper brake also has the advantages of simple and compact structure, easy manufacture and low cost.
Drawings
Fig. 1 is a schematic front view of a floating caliper brake.
Fig. 2 is a schematic view of a partial main sectional structure at the location of a connector.
Fig. 3 is a schematic top view of a floating caliper brake (with brackets removed).
Fig. 4 is a partial schematic cross-sectional plan view of the connector at the location.
Legend description:
1. the device comprises a bracket, a positioning groove, 2, a brake pad, 3, a connecting piece, 31, an outer connecting part, 32, an inner connecting part, 321, a bottom plate part, 322, a side plate part, 323, an elastic positioning part, 33, a mounting groove, 34, an elastic connecting part, 341, a bottom edge, 342, a first side edge, 343, a second side edge, 344 and a U-shaped groove.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 4, the floating caliper brake of the present embodiment includes a bracket 1 and a brake pad 2, the brake pad 2 is mounted on the bracket 1 in a reciprocatingly rectilinear motion by two connection members 3 respectively located at both ends of the brake pad 2, the connection members 3 include an outer connection portion 31 and an inner connection portion 32, the outer connection portion 31 is mounted on the bracket 1, the inner connection portion 32 is provided with a mounting groove 33 which elastically clamps the brake pad 2 and allows the brake pad 2 to reciprocate rectilinear motion, the inner connection portion 32 is connected with the outer connection portion 31 by an elastic connection portion 34 and can reciprocate rectilinear motion with respect to the outer connection portion 31, and a force required for elastic deformation of the elastic connection portion 34 is smaller than a static friction force between the brake pad 2 and the inner connection portion 32. In the floating caliper brake, the inner connecting portion 32 is connected with the outer connecting portion 31 through the elastic connecting portion 34, so that the inner connecting portion 32 can reciprocate and linearly move relative to the outer connecting portion 31, meanwhile, the acting force required by elastic deformation of the elastic connecting portion 34 is smaller than the static friction force between the brake pad 2 and the inner connecting portion 32, when the brake pad 2 is driven to move by a driver to brake, the brake pad 2 can firstly drive the inner connecting portion 32 to move relative to the outer connecting portion 31 so as to force the elastic connecting portion 34 to deform, when the elastic connecting portion 34 is not deformed enough to enable the brake pad 2 to move to a braking position (a position attached to a brake disc), the brake pad 2 can still move relative to the inner connecting portion 32 to a braking position, after braking is finished, the elastic restoring action of the elastic connecting portion 34 can force the inner connecting portion 32 to move in a reverse braking direction for resetting, compared with the traditional scheme, when the brake pad 2 is reset after braking is finished, the brake pad 2 is completely separated from the brake disc, drag resistance is avoided, the wear loss of the brake pad 2 and the brake disc is reduced, and the service life is delayed. And, after the brake pad 2 is worn to a certain extent, the brake pad 2 can also move relative to the inner connecting part 32 in the braking process, so that the automatic compensation of the wear amount is realized, and the braking effect is ensured. The floating caliper brake also has the advantages of simple and compact structure, easy manufacture and low cost.
In the present embodiment, one direction in which the inner connecting portion 32 reciprocates linearly with respect to the outer connecting portion 31 is a braking direction, and the inner connecting portion 32 or the elastic connecting portion 34 has a limiting portion that limits a movement stroke of the inner connecting portion 32 when the inner connecting portion 32 moves in the braking direction with respect to the outer connecting portion 31. The movement stroke of the inner connecting portion 32 with respect to the outer connecting portion 31 in the braking direction is restricted by the restricting portion, and after a certain wear occurs in the brake pad 2, the brake pad 2 can be ensured to move stably with respect to the inner connecting portion 32, and the amount of wear can be ensured to be automatically compensated.
In this embodiment, the connecting member 3 is an integral member formed by bending a plate, and has a simple structure, low cost and simple and convenient manufacture.
In this embodiment, the plate includes a first portion, a second portion and a middle portion, where the first portion and the second portion are respectively connected to two sides of the middle portion, the first portion is bent to form a U-shaped structure as the outer connecting portion 31, the second portion is bent to form a U-shaped structure as the inner connecting portion 32, the middle portion is bent to form an elastic connecting portion 34 of the U-shaped structure, the elastic connecting portion 34 makes the inner connecting portion 32 be located in a groove formed by the outer connecting portion 31, and the inner connecting portion 32 can reciprocate in the groove relative to the outer connecting portion 31. The outer connecting portion 31 and the inner connecting portion 32 are of U-shaped structures, the inner connecting portion 32 is located in a groove formed by the outer connecting portion 31, the structure is compact, and the movement stability of the inner connecting portion 32 is high.
In this embodiment, the elastic connection portion 34 includes a bottom edge 341, a first side edge 342 and a second side edge 343, the first side edge 342 and the second side edge 343 are respectively connected to two sides of the bottom edge 341 to enclose a U-shaped groove 344, the first side edge 342 is connected to the outer connection portion 31, and the second side edge 343 is connected to the inner connection portion 32 and serves as a limiting portion. The elastic connection portion 34 of this structure has excellent elastic deformation performance, and is simple in structure, low in cost, and easy to manufacture.
In this embodiment, the bottom edge 341 is concave towards the outside of the U-shaped groove 344, so that the bottom width of the U-shaped groove 344 is larger than the width of the open end, and the elastic deformation performance of the elastic connection portion 34 can be further improved.
In the present embodiment, the elastic connection portion 34 is located outside the groove formed by the outer connection portion 31. Without interfering with the movement of the brake pad 2 and the action of the actuator driving the brake pad 2.
In this embodiment, the support 1 is provided with the positioning groove 11, and the outer connecting portion 31 is installed in the positioning groove 11, so that the installation stability of the connecting piece 3 on the support 1 can be improved, and meanwhile, the structure is compact.
In this embodiment, the inner connecting portion 32 includes a bottom plate portion 321 and two side plate portions 322, the two side plate portions 322 are respectively connected to two sides of the bottom plate portion 321 to form the mounting groove 33, and one end of at least one side plate portion 322 away from the bottom plate portion 321 is bent to form an elastic positioning portion 323 protruding toward the inside of the mounting groove 33. The brake pad 2 can be clamped better and a suitable elastic clamping action on the brake pad 2 is ensured, so that the brake pad 2 can be moved relative to the inner connection 32. The elastic positioning part 323 has the advantages of simple and compact structure, convenient processing and manufacturing and low cost.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.