CN110821985B - A brake and brake block assembly - Google Patents
A brake and brake block assembly Download PDFInfo
- Publication number
- CN110821985B CN110821985B CN201911266795.XA CN201911266795A CN110821985B CN 110821985 B CN110821985 B CN 110821985B CN 201911266795 A CN201911266795 A CN 201911266795A CN 110821985 B CN110821985 B CN 110821985B
- Authority
- CN
- China
- Prior art keywords
- brake
- positioning
- assembly
- block
- mounting part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a brake and a brake block assembly, and belongs to the technical field of brakes. The brake block assembly solves the problems that the hub disc assembly is inconvenient to detach and replace due to the positioning of the brake block assembly in the existing brake. The brake comprises a brake block assembly and a clamp body, wherein the clamp body comprises an installation part fixed with the brake block assembly, the brake block assembly comprises a back plate, the back surface of the back plate is attached to the inner side surface of the installation part, a convex lug is arranged on the back surface of the back plate, a positioning surface for supporting the lug is arranged on the installation part, a pressing plate for enabling the lug to be kept against the positioning surface is detachably fixed on the top of the installation part, a positioning groove is arranged on the inner side surface of the installation part, the positioning groove penetrates through the top surface of the installation part towards the top direction of the installation part and forms an inlet, a positioning block matched with the positioning groove is further arranged on the back surface of the back plate, and the positioning block can be embedded into and taken out of the positioning groove through the inlet. The brake structure can enable the hub disc assembly to be convenient to detach and replace while positioning the brake block assembly.
Description
Technical Field
The invention belongs to the technical field of brakes, and relates to a brake and a brake block assembly.
Background
The brake system is a system for forcibly reducing the movement speed of the sporting goods. On vehicles, braking is typically performed by means of brakes, including disc brakes, which are also referred to as disc brakes, drum brakes, which are also referred to as drum brakes, and the like. The floating caliper type disc brake is widely applied to automobiles due to the advantages of fast heat dissipation, light weight and the like. The floating caliper disc brake comprises a transmission mechanism, a bracket and a caliper body arranged on the bracket, wherein a sliding pin is arranged on the bracket, penetrates through a sliding pin hole on the caliper body, and is connected with a brake block arranged on the caliper body. The assembly of the caliper body and the components attached to the caliper body is sometimes referred to as a brake caliper assembly.
The bracket is sometimes called a bracket, and a common bracket is a vehicle disc brake bracket disclosed in Chinese patent literature data [ application number: CN 201510136515.9; publication number: CN 104776134A ] which comprises a symmetrical curve beam, two ends of the curve beam are symmetrically provided with bracket heads, the upper part of the bracket heads is provided with a round hole, and the lower part of the bracket heads is provided with three bolt holes. The two opposite bracket heads are connected through the side edge plates, the bracket forms an enclosing structure, and the braking part of the brake disc is positioned between the two curved beams and is enclosed by the bracket.
The tops of the two curved beams are respectively provided with an inner brake block assembly and an outer brake block assembly, and the inner brake block assembly and the outer brake block assembly are respectively positioned at the inner side and the outer side of the brake disc. The brake disc is fixed with the hub through a flange plate structure, the hub is fixed on an axle of an automobile through a bearing, and the brake disc and the hub form a hub disc assembly. The brake caliper assembly is fixed on the suspension through the bracket, the position relation between the suspension and the axle is fixed, and the installation space between the brake caliper assembly and the brake disc is limited. Because the brake portion of the brake disc is surrounded by the bracket, the bracket forms a limit on the inner side, the outer side and the two radial sides of the brake portion of the brake disc, and when the hub disc assembly is detached, the hub disc assembly can only be detached from the suspension after the brake caliper assembly is detached from the suspension, so that the hub disc assembly has enough space to be detached from the axle. The brake caliper assembly is detached, and the bracket is detached, so that the bracket is required to be repositioned after being detached, and the hub disc assembly is inconvenient to detach and replace.
Because the bracket limits the disassembly and replacement of the hub disc assembly, the elimination of the bracket is one way to solve the problem. The Chinese patent literature discloses a disc brake caliper assembly without a bracket [ application number: CN201020511920.7, bulletin number: CN 201858286U ], which comprises a caliper body, a piston arranged in the caliper body, an inner side brake block assembly pushed by the piston and an outer side brake block assembly pushed by the caliper body, wherein the inner side brake block assembly comprises a friction block I and a back plate I arranged between the friction block I and the piston, and the outer side brake block assembly comprises a friction block II and a back plate II arranged between the friction block II and the caliper body. The backboard II is provided with a limiting boss, the forceps body is provided with a limiting hole corresponding to the limiting boss, and the limiting boss is inserted into the limiting hole.
The outboard brake shoe assembly is sometimes referred to as a brake shoe assembly and the inboard brake shoe assembly is sometimes referred to as a mating brake shoe assembly. The brake caliper assembly is free of the support, and the outer brake block assembly is fixedly connected to the caliper body through the limiting boss and the limiting hole. The outside of the brake disc is not provided with a support structure to limit the disassembly and replacement of the hub disc assembly, so that the limit on the radial space to the disassembly and replacement of the hub disc assembly is reduced. However, because the limiting boss and the limiting hole form annular limiting, when the hub disc assembly and the brake caliper assembly are not separated, the outer brake block assembly cannot be taken out from the caliper body to give up an axial space for disassembly and replacement of the hub disc assembly, and therefore the whole brake caliper assembly still needs to be disassembled first and then the hub disc assembly is disassembled.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a brake and a brake block assembly, which solves the technical problem of how to facilitate the disassembly and the replacement of a hub disc assembly while positioning the brake block assembly.
The aim of the invention can be achieved by the following technical scheme:
The utility model provides a stopper, includes the brake shoe assembly that is used for with the lateral surface cooperation braking of brake disc and can span in the caliper body of brake disc, the caliper body includes the installation department fixed with the brake shoe assembly, the brake shoe assembly includes the backplate, the back of backplate is leaned on in the medial surface of installation department, have convex lug on the back of backplate, a serial communication port, have the locating surface that is used for supporting the lug on the installation department, be fixed with the clamp plate that makes the lug keep leaning on the locating surface on the top of installation department detachable, be provided with the constant head tank on the medial surface of installation department, the constant head tank runs through the top surface of installation department to the top direction of installation department and forms the entry, still have the locating piece with constant head tank matched with on the back of backplate, the locating piece can be through the entry embedding and take out the constant head tank.
When the brake block assembly is installed, the back plate of the brake block assembly is inserted from the top of the caliper body, the positioning block is embedded into the positioning groove through the inlet, the back surface of the back plate is abutted against the inner side surface of the installation part, and then the pressing plate is fixed at the top of the installation part, so that the bottom surface of the protruding block is kept abutted against the positioning surface. After the locating block is embedded into the locating groove, the side walls of the locating groove, which are positioned on two sides of the locating block, face the backboard to form circumferential locating, the inner side of the installation part faces the backboard to form axial limiting, and the locating surface, the protruding blocks and the pressing plate form radial locating on the backboard, so that the brake block assembly is located and installed on the caliper body. The brake block assembly is arranged on the outer side of the brake disc, when the brake block assembly is disassembled, the pressing plate is disassembled from the mounting part, and then the back plate is taken out from the top of the caliper body, so that the positioning block is taken out of the positioning groove through the inlet. After the brake block assembly is taken out, an axial disassembly space is reserved between the brake disc and the mounting part, and the bottom space of the mounting part is also free of a bracket structure, so that the radial disassembly space occupied by the original bracket structure is increased between the brake disc and the caliper body, and the hub disc assembly can be disassembled from the axle without disassembling the brake, thereby facilitating the disassembly and the replacement of the hub disc assembly. The locating piece sets up on the backplate, and the constant head tank setting is on the medial surface of installation department and the entry setting is on the top of installation department, and the constant head tank can enough realize the location of brake block assembly with the locating piece cooperation, can avoid setting up the part that hinders hub disc assembly and tear open the trade on the medial surface of installation department again to make hub disc assembly tear open the trade convenient when realizing the location. The brake structure can enable the hub disc assembly to be convenient to detach and replace while positioning the brake block assembly.
In the brake described above, the positioning groove penetrates the bottom surface of the mounting portion in the bottom direction of the mounting portion and forms the outlet.
The side wall of the positioning groove can not interfere the positioning of the backboard in the radial direction due to the arrangement of the outlet, so that the projection on the backboard is ensured to be supported on the positioning surface of the mounting part, and the backboard is enabled to be positioned stably in the radial direction.
In the brake, the top of the positioning block is positioned at the inlet or extends out of the inlet, and the bottom of the positioning block extends out of the outlet.
The top of the locating block is positioned at the inlet or extends out of the inlet, the bottom of the locating block extends out of the outlet, so that the locating block has good shearing resistance, the backboard is ensured to bear tangential shearing force when the brake block assembly is contacted with the brake disc for braking, and the circumferential positioning of the brake block assembly on the mounting part is stable.
In the brake, a gap is formed between the positioning block and the bottom surface of the positioning groove.
The setting in clearance can avoid locating piece and constant head tank's bottom surface to take place to interfere to guarantee that the backplate pastes and lean on carrying out axial positioning on the medial surface of installation department, make brake block assembly axial positioning stable, and can prevent to take place frictional wear between locating piece and the bottom surface of constant head tank when backplate and installation department relative motion, reduce the resistance when brake block assembly carries out dismouting on the pincers body, make brake block assembly easy dismounting from the pincers body, the smooth dismantlement of brake block assembly also makes the dismantlement of wheel hub dish assembly convenient.
In the brake, the two positioning blocks are respectively positioned at two sides of the lug. The arrangement ensures that the back plate and the mounting part are positioned stably, and the back plate is stressed uniformly when the brake block assembly is contacted with the brake disc to brake, so that the braking effect of the brake block assembly is ensured.
In the brake, the positioning block and the protruding block are arranged separately, or the positioning block is directly connected with the protruding block, and a yielding groove is arranged at the joint of the positioning block and the protruding block.
Because the lug is used for radial positioning of the backboard, the positioning block is used for circumferential positioning of the backboard, and the positioning block and the lug are arranged separately, so that the parts causing installation interference can be reduced, and the positioning of the brake block assembly is stable and the assembly and disassembly are convenient. The locating piece is directly connected with the lug, can improve the structural strength between locating piece and the lug, improves their shear resistance, makes brake block assembly stable in structure, and the setting of recess of stepping down can reduce the installation interference that causes after both link to each other again, makes brake block assembly location stable and easy dismounting.
In the brake, a large notch is formed in the inner side edge of the top of the mounting portion, a small notch is concavely formed in the bottom surface of the large notch, the bottom surface of the small notch is the positioning surface, the protruding block is located in the small notch, and the top of the protruding block extends out of the large notch.
The arrangement of the large notch and the small notch can reduce the weight of the caliper body on one hand, and on the other hand, the brake block assembly has proper mounting height and can be matched with the brake disc for braking, the bottom of the backboard can protrude out of the bottom surface of the mounting part, and the brake block assembly can be conveniently ejected out during disassembly.
In the above-described brake, the bottom of the back plate protrudes from the bottom surface of the mounting portion. On the one hand, when the brake block assembly is disassembled, the brake block assembly can be ejected out from the bottom of the back plate, so that the brake block assembly can be conveniently disassembled, and on the other hand, after the brake assembly is disassembled from the mounting part, enough radial disassembling and replacing space can be formed between the mounting part and the brake disc, so that the hub disc assembly can be smoothly disassembled.
In the brake, protrusions are respectively arranged on two sides of the top surface of the backboard and located on the two sides of the protruding blocks, an elastic pressing strip arched in the direction away from the top surface of the backboard is fixed between the two protrusions, and the pressing plate abuts against the top of the elastic pressing strip. The elastic pressing strip deforms after being stressed and generates pressure on the backboard, so that the convex blocks stably lean against the positioning surface, and the radial positioning of the brake block assembly is stable.
In the above-mentioned brake, the top surface of the bump is flush with the top surface of the back plate. The top surface of the lug is flush with the top surface of the backboard, so that the radial shearing resistance of the lug is improved, the structural strength of the lug is improved, and the service life of the brake block assembly is ensured.
In the brake, the brake further comprises a bracket and a matched brake block assembly used for braking with the inner side surface of the brake disc in a matched mode, the top of the bracket is provided with a positioning groove, the matched brake block assembly is located in the positioning groove, the pressing plate acts on the matched brake block assembly to enable the matched brake block assembly to be kept against the bottom surface of the positioning groove, the matched brake block assembly can be inserted into and taken out of the positioning groove through the top of the caliper body, two sides of the bracket are respectively provided with a fixing portion, the front face of the fixing portion is provided with a matching surface which can be opposite to the brake disc, and the edge of the fixing portion does not protrude out of the matching surface.
The bracket is connected with the clamp body in a sliding way and is fixedly connected to the suspension bracket through the fixing part. When the paired brake block assembly is installed, the paired brake block assembly is inserted into the positioning groove from the top of the caliper body, the paired brake block assembly is abutted against the bottom surface of the positioning groove through the pressing plate to realize radial positioning, and two side walls of the positioning groove face the paired brake block assembly to realize circumferential positioning. When the matched brake block assembly is disassembled, the pressing plate is disassembled, and then the matched brake block assembly is taken out from the top of the clamp body. After the matched brake block assembly is taken out of the positioning groove, the positioning groove provides a certain disassembly and replacement space for the hub disc assembly. In addition, as the edge of the fixing part does not protrude from the matching surface, the bracket does not limit the brake disc on the radial side, so that the interference of the bracket structure on the disassembly and assembly of the hub disc assembly is reduced, the operation of disassembling and replacing the hub disc assembly can be performed without disassembling the bracket, and the hub disc assembly can be disassembled and replaced conveniently. In addition, compared with the existing bracket, the weight of the brake can be reduced, and the weight reduction of the automobile is facilitated.
In the brake, a protruding limiting block is arranged on the outer side face of at least one fixing portion, a first protrusion corresponding to the limiting block is arranged on at least one position on the clamp body, and the first protrusion is arranged opposite to the front face of the limiting block.
The floating position of the clamp body is limited by the limiting block, so that the stability of the structure of the brake is prevented from being influenced by excessive sliding of the clamp body, and the brake is enabled to work stably. In the brake, a convex installation boss is arranged on the reverse side of the fixing part, and a positioning plane is arranged on the installation boss.
When the brake is installed, the positioning plane of the bracket is abutted against the suspension to position, and then the bracket is fixed on the suspension through bolts on the suspension. The bracket is fixed on the suspension, the brake disc is fixed on the axle, and the position relation between the axle and the suspension is fixed, so that the position relation between the bracket and the brake disc is fixed. The positioning plane is positioned on the mounting boss, and the mounting boss is arranged in a protruding manner, so that the position of the bracket is accurately mounted, the position relationship between the bracket and the brake disc is accurate, the designed enough disassembly and replacement space is ensured after the bracket and the brake disc are actually assembled, and the disassembly and replacement of the hub disc assembly are facilitated.
The brake block assembly is installed on the caliper body of the brake, the caliper body comprises an installation portion, the brake block assembly comprises a back plate which can be attached to the inner side face of the installation portion, a protruding block which can be supported on the installation portion is arranged on the back face of the back plate, and the brake block assembly is characterized in that a positioning groove is arranged on the inner side face of the installation portion, the positioning groove penetrates through the top surface of the installation portion towards the top direction of the installation portion and forms an inlet, a positioning block which can be matched with the positioning groove is further arranged on the back face of the back plate, and the positioning block can be embedded into and taken out of the positioning groove through the inlet.
The brake block assembly can form radial positioning through the lug and the mounting part, forms axial limit through the back of the back plate and the mounting part, and forms circumferential positioning through the positioning block and the mounting part, so that the brake block assembly can be positioned on the caliper body. The locating piece can be from the entry embedding with take out the constant head tank, make the locating piece can be enough with the constant head tank cooperation realization stopper assembly's location, can take out the locating piece assembly again and press from both sides the body, the axial is torn open and is traded the space, avoids the stopper assembly to hinder the tearing open of wheel hub dish assembly and trades to make the wheel hub dish assembly tear open and trade convenient when realizing the location. The positioning brake block assembly can be positioned on the caliper body and simultaneously enables the hub disc assembly to be convenient to detach and replace.
In the above brake block assembly, the top surface of the bump is flush with the top surface of the back plate, and the bottom surface of the positioning block is flush with the bottom surface of the back plate.
The top surface of lug and the top surface parallel and level of backplate have improved the radial shear resistance of lug, have improved the structural strength of lug, and the bottom surface of locating piece and the bottom surface parallel and level of backplate have improved the circumferential shear resistance of locating piece, have improved the structural strength of locating piece, guarantee the life of brake block assembly.
In the above brake block assembly, the positioning block and the bump are separately arranged, or the positioning block is directly connected with the bump, and a yielding groove is arranged at the connection part of the positioning block and the bump.
Because the lug is used for radial positioning of the backboard, the positioning block is used for circumferential positioning of the backboard, and the positioning block and the lug are arranged separately, so that the parts causing installation interference can be reduced, and the positioning of the brake block assembly is stable and the assembly and disassembly are convenient. The locating piece is directly connected with the lug, can improve the structural strength between locating piece and the lug, improves their shear resistance, makes brake block assembly stable in structure, and the setting of recess of stepping down can reduce the installation interference that causes after both link to each other again, makes brake block assembly location stable and easy dismounting.
In the above brake block assembly, the two positioning blocks are respectively positioned at two sides of the protruding block. The arrangement ensures that the back plate and the mounting part are positioned stably, and the back plate is stressed uniformly when the brake block assembly is contacted with the brake disc to brake, so that the braking effect of the brake block assembly is ensured.
Compared with the prior art, the invention has the following advantages:
Set up the locating surface on the installation department of the pincers body, the lug of backplate supports through the clamp plate and leans on in the locating surface, through the constant head tank on the installation department medial surface and the locating piece circumference location backplate on the backplate, and the constant head tank sets up the entry in the top department of installation department, and the locating piece can insert and take out the constant head tank through the entry, makes the dismantlement of hub disk assembly convenient when realizing the brake block assembly location. The positioning groove is provided with an outlet at the bottom of the installation part, and a gap is reserved between the positioning block and the bottom surface of the positioning groove, so that the brake block assembly is positioned stably and is convenient to assemble and disassemble. The bracket is only provided with a structure positioned on the inner side of the brake disc, so that the weight of the brake is reduced, and the disassembly and replacement of the hub disc assembly are facilitated.
Drawings
FIG. 1 is a perspective view of a first embodiment of the present brake;
FIG. 2 is a second perspective view of the first embodiment of the present brake;
FIG. 3 is a split perspective view of a first embodiment of the present brake;
FIG. 4 is a diagram of the positional relationship between the first embodiment of the present brake and the brake disc;
FIG. 5 is a schematic illustration of the process of removing the hub disc assembly from the first embodiment of the present brake;
FIG. 6 is a perspective view of a brake shoe assembly with a resilient bead hidden in a first embodiment of the brake;
FIG. 7 is a perspective view of a bracket in accordance with one embodiment of the present brake;
FIG. 8 is a partial perspective view of the positioning of the mounting portion and brake pad assembly of the first embodiment of the present brake;
FIG. 9 is a split perspective view of a second embodiment of the present brake;
Fig. 10 is a perspective view of a brake shoe assembly with a resilient bead hidden in a second embodiment of the brake.
In the figure, 1, a clamp body, 1a, a mounting part, 1a1, a large notch, 1a2, a small notch, 1a3, a positioning surface, 1a4, a positioning groove, 1a5, an inlet, 1a6, an outlet, 1b, a transmission part, 1c, a bridging part, 1c1, a first protrusion, 1c2, a second protrusion, 1d, an opening, 2, a brake block assembly, 2a, a back plate, 2a1, a protruding block, 2a2, a positioning block, 2a3, a gap, 2a4, a protrusion, 2a5, a yielding groove, 2b, a friction block, 2c, an elastic pressing strip, 3, a matched brake block assembly, 4, a pressing plate, 5, a bracket, 5a, a positioning groove, 5b, a fixing part, 5b1, a matching surface, 5b2, a mounting boss, 5b3, a positioning plane, 5b4, a limiting block, 6, a brake disc, 7, a hub, 8 and an axle.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 to 8, a brake includes a caliper body 1 capable of straddling a brake disc 6, a brake pad assembly 2 for braking with an outer side surface of the brake disc 6, a counterpart brake pad assembly 3 for braking with an inner side surface of the brake disc 6, and a bracket 5. The caliper body 1 includes a mounting portion 1a fixed to the brake pad assembly 2, a transmission portion 1b connected to the bracket 5, and a bridge portion 1c located between the mounting portion 1a and the transmission portion 1 b. The mounting portion 1a and the transmission portion 1b are located outside and inside the brake disc 6, respectively, and the bridge portion 1c is located on the outer peripheral side of the brake disc 6. The brake block assembly 2 is fixedly connected to the inner side surface of the mounting part 1a, a transmission mechanism is mounted in the transmission part 1b, the matched brake block assembly 3 is connected with the transmission mechanism, and the bracket 5 is in sliding connection with the transmission part 1 b. A sliding pin is fixedly connected in the pin hole of the bracket 5, a sliding pin hole is arranged on the transmission part 1b, and the sliding pin is arranged in the sliding pin hole in a penetrating way. The top surface of the bridge portion 1c is provided with an opening 1d penetrating the bottom surface of the bridge portion 1c, the circumferential width of the opening 1d is larger than the circumferential width of the brake pad assembly 2, the circumferential width of the opening 1d is larger than the circumferential width of the counterpart brake pad assembly 3, and the opening 1d extends in the axial direction to the mounting portion 1a and the transmission portion 1b, so that the brake pad assembly 2 and the counterpart brake pad assembly 2 can both be inserted and removed through the opening 1 d.
The top of the bracket 5 has a positioning groove 5a, and the mating brake block assembly 3 is positioned in the positioning groove 5a, and the mating brake block assembly 3 can be inserted into and taken out of the positioning groove 5a through the top opening 1d of the caliper body 1. The bracket 5 has fixing portions 5b on both sides, and the front surface of the fixing portion 5b has a mating surface 5b1 capable of being opposed to the brake disc 6, and the edge of the fixing portion 5b does not protrude from the mating surface 5b1. The fixing portion 5b has a mounting boss 5b2 protruding from the edge of the fixing portion 5b on the surface opposite to the mating surface 5b1, and a positioning plane 5b3 is provided on the mounting boss 5b 2. An arched beam is arranged between the two fixing parts 5b, and is positioned at the bottom of the positioning groove 5a. An avoidance notch is arranged between the bottom surface of the positioning groove 5a and two side wall surfaces of the positioning groove 5a, and comprises a first groove arranged on the side wall surface of the positioning groove 5a and a second groove arranged on the bottom surface of the positioning groove 5a. The groove wall surface of the first groove is an arc-shaped surface, the bottom surface of the second groove is a plane, the side wall surface of the second groove is an arc-shaped surface, and the arc transition is realized between the groove wall surface of the first groove and the side wall surface of the second groove. The mating surface 5b1 comprises a mating plane, which is arranged parallel to the positioning plane 5b3. The fit plane is provided with a convex reinforcing boss at the escape recess of the positioning groove 5a, the top of the reinforcing boss extends to the top side of the bracket 5, and the inner side of the reinforcing boss extends to the arched beam. After the reinforcing boss is provided, the mating surface 5b1 further includes a surface of the reinforcing boss facing the brake disc 6, which is planar and is disposed parallel to the mating surface.
The outer side surface of at least one fixing portion 5b is provided with a protruding limiting block 5b4, the front surface of the limiting block 5b4 does not protrude from the matching surface 5b1, the back surface of the limiting block 5b4 does not protrude from the back surface of the fixing portion 5b, preferably, the matching surface 5b1 protrudes from the front surface of the limiting block 5b4, and the back surface of the fixing portion 5b protrudes from the back surface of the limiting block 5b 4. At least one position of the bridging part 1c of the clamp body 1 is provided with a first bulge 1c1 and a second bulge 1c2 which correspond to the limiting block 5b4, the limiting block 5b4 is positioned between the first bulge 1c1 and the second bulge 1c2, the first bulge 1c1 is arranged opposite to the front surface of the limiting block 5b4, and the second bulge 1c2 is arranged opposite to the back surface of the limiting block 5b 4. The floating position of the clamp body 1 is limited by arranging the limiting block 5b4, so that the influence on the stability of the brake structure caused by excessive sliding of the clamp body 1 is avoided, and the brake is stable in operation. In some brakes, the second protrusion 1c2 may be omitted.
The brake block assembly 2 includes a back plate 2a that is abutted against the inner side surface of the mounting portion 1a, a convex projection 2a1 is provided on the back plate 2a, which is the side abutted against the mounting portion 1a, that is, the back surface of the back plate 2a, and the top surface of the projection 2a1 is flush with the top surface of the back plate 2 a. The number of the bumps 2a1 may be one or more, and may be set as needed. A friction block 2b is fixed to the back plate 2a on the side opposite to the mounting portion 1a, that is, on the front surface of the back plate 2a, and the friction block 2b can be brought into contact with the brake disk 6 to perform braking. The mounting portion 1a has a positioning surface 1a3 for supporting the projection 2a1 thereon, and the bottom surface of the projection 2a1 abuts against the positioning surface 1a 3. The inner side edge of the top surface of the mounting part 1a is provided with a concave large notch 1a1, the bottom surface of the large notch 1a1 is provided with a small notch 1a2 in a concave manner, the bottom surface of the small notch 1a2 is a positioning surface 1a3, the convex block 2a1 is embedded into the small notch 1a2, and the top of the convex block 2a1 extends out of the large notch 1a1. The inner side surface of the mounting part 1a is provided with a strip-shaped positioning groove 1a4, two side wall surfaces of the positioning groove 1a4 are arranged in parallel, the positioning groove 1a4 is perpendicular to the positioning surface 1a3, namely, two side wall surfaces of the positioning groove 1a4 are perpendicular to the positioning surface 1a 3. The positioning groove 1a4 penetrates through the bottom surface of the large notch 1a1 towards the top direction of the mounting part 1a and forms an inlet 1a5, the back surface of the back plate 2a is also provided with a strip-shaped positioning block 2a2 matched with the positioning groove 1a4, and the positioning block 2a2 can be inserted into and taken out of the positioning groove 1a4 through the inlet 1a5. The positioning block 2a2 is embedded into the positioning groove 1a4, two side surfaces of the positioning block 2a2 are arranged in parallel, two side surfaces of the positioning block 2a2 are respectively abutted against two side wall surfaces of the positioning groove 1a4, and the top of the positioning block 2a2 is positioned at the inlet 1a5 or extends out of the inlet 1a5. A gap 2a3 is formed between the back surface of the positioning block 2a2 and the bottom surface of the positioning groove 1a4, and the back surface of the positioning block 2a2 and the bottom surface of the positioning groove 1a4 are arranged in parallel. The bottom of the backboard 2a protrudes out of the bottom surface of the mounting portion 1a, the positioning groove 1a4 penetrates through the bottom surface of the mounting portion 1a towards the bottom direction of the mounting portion 1a and forms an outlet 1a6, the bottom of the positioning block 2a2 protrudes out of the outlet 1a6, and the bottom surface of the positioning block 2a2 is flush with the bottom surface of the backboard 2 a. The rounded transition between the bottom surface of the positioning block 2a2 and the two sides of the positioning block 2a2 facilitates the insertion of the positioning block 2a2 from the inlet 1a5 into the positioning groove 1a4. The positioning blocks 2a2 are arranged separately from the protruding blocks 2a1, and two positioning blocks 2a2 are respectively positioned at two sides of the protruding blocks 2a 1. The number of the positioning blocks 2a2 may be increased or decreased according to the number.
The top of the clamp body 1 is detachably fixed with a pressing plate 4, one end of the pressing plate 4 is inserted on the transmission part 1b, and the other end of the pressing plate 4 is fixedly connected on the top surface of the installation part 1a through a bolt. Or the two ends of the pressing plate 4 are fixedly connected to the transmission part 1b and the mounting part 1a through bolts respectively. The pressing plate 4 acts on the counterpart brake assembly 3 to keep the counterpart brake assembly 3 against the bottom surface of the positioning groove 5a, and the pressing plate 4 acts on the brake assembly 2 to keep the projection 2a1 against the positioning surface 1a3. The top of the backboard 2a is provided with protrusions 2a4 on two sides of the protrusion 2a1 respectively, an elastic pressing strip 2c arched towards the direction away from the top surface of the backboard 2a is fixed between the two protrusions 2a4, and the pressing plate 4 abuts against the top of the elastic pressing strip 2 c.
When the brake block assembly 2 and the matched brake block assembly 3 are installed, the back plate 2a of the brake block assembly 2 is inserted through the opening 1d at the top of the caliper body 1, the positioning block 2a2 is embedded into the positioning groove 1a4 through the opening 1d, the back plate 2a is abutted against the inner side surface of the installation part 1a, the convex block 2a1 is embedded into the small notch 1a2 and abutted against the positioning surface 1a3, the matched brake block assembly 3 is inserted from the opening 1d at the top of the caliper body 1 and is inserted into the positioning groove 5a of the bracket 5, the bottom surface of the matched brake block assembly 3 is abutted against the bottom surface of the positioning groove 5a, the transmission mechanism is connected with the matched brake block assembly 2, the pressing plate 4 is fixed on the top of the caliper body 1, and under the action of the pressing plate 4, the bottom surface of the convex block 2a1 is kept abutted against the positioning surface 1a3, and the matched brake block assembly 3 is kept abutted against the bottom surface of the positioning groove 5a. The cooperation of constant head tank 1a4 and locating piece 2a2 forms circumferential location to backplate 2a, and the inboard of installation department 1a forms the axial spacing to backplate 2a, and locating surface 1a3 and lug 2a1 and clamp plate 4 form radial location to backplate 2a to make brake shoe assembly 2 location install on caliper body 1.
The brake is fixedly connected to the suspension through a fixing part 5b of the bracket 5, the brake disc 6 is fixedly connected with the hub 7 through a flange plate structure, the hub 7 is fixedly connected to the axle 8 through an inner bearing and an outer bearing, the brake disc 6 and the hub 7 form a hub disc assembly, and the hub disc assembly can be disassembled without disassembling the bracket 5 as shown in fig. 4 and 5. When the hub disc assembly is disassembled, the pressing plate 4 is firstly disassembled from the clamp body 1, then the brake block assembly 2 is taken out through the opening 1d at the top of the clamp body 1, the positioning block 2a2 is separated from the positioning groove 1a4, the matched brake block assembly 3 is taken out from the positioning groove 5a of the bracket 5 through the opening 1d at the top of the clamp body 1, then the inner ring of the outer bearing between the hub 7 and the axle 8 is taken out, then the hub disc assembly is moved outwards and downwards by a certain distance, the inner ring and the outer ring of the inner bearing between the hub 7 and the axle 8 are separated, and then the hub disc assembly is taken out along the axle 8 while the hub disc assembly is continuously inclined. The hub disc assembly is mounted and operated in reverse.
In the process of disassembling and replacing the hub disc assembly, after the brake block assembly 2 is taken out, an axial disassembling and replacing space is reserved between the brake disc 6 and the mounting part 1a, and the bottom space of the mounting part 1a is not provided with a bracket 5 structure, so that a radial disassembling and replacing space occupied by the original bracket 5 structure is increased between the brake disc 6 and the caliper body 1, and meanwhile, the edge of the fixing part 5b of the bracket 5 is not protruded out of the matching surface 5b1, and the bracket 5 also does not limit the brake disc 6 at the radial side. In addition, locating piece 2a2 sets up on backplate 2a, and constant head tank 1a4 sets up on the medial surface of installation department 1a and opening 1d sets up on the top of installation department 1a, constant head tank 1a4 can be enough realize the location of brake shoe assembly 2 with locating piece 2a2 cooperation, can avoid setting up the part that hinders the disk assembly and tear open and trade again on the medial surface of installation department 1a, therefore, the bottom and the both sides of installation department 1a do not have other convex structures that can hinder the dismouting of brake disc 6 yet, the radial tear open and trade space and the axial tear open and trade space of disk assembly increase of installation department 1a also, just so can tear the disk assembly down from axletree 8 under the circumstances of not dismantling the stopper, thereby make disk assembly tear open and trade conveniently. The brake structure can enable the hub disc assembly to be convenient to detach and replace while positioning the brake block assembly 2.
In the above description, the hub disc assembly is integrally detached from the axle 8, however, in the actual detachment process, the fixing state of the hub 7 and the brake disc 6 may be released, then the hub 7 is detached from the axle 8, and then the brake disc 6 is detached from the axle 8 according to the method of detaching the hub disc assembly.
Example two
As shown in fig. 9 and 10, the positioning block 2a2 and the positioning groove 1a4 are different from the first embodiment, and the other structures are the same as the first embodiment. The positioning block 2a2 is directly connected with the bump 2a1, a yielding groove 2a5 is arranged at the joint of the positioning block 2a2 and the bump 2a1, and an inlet 1a5 of the positioning groove 1a4 is connected with the small notch 1a 2.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. Brake comprising a brake shoe assembly (2) for braking with the outer side of a brake disc (6) and a caliper body (1) capable of crossing the brake disc (6), wherein the caliper body (1) comprises a mounting part (1 a) fixed with the brake shoe assembly (2), the brake shoe assembly (2) comprises a back plate (2 a), the back surface of the back plate (2 a) is abutted against the inner side of the mounting part (1 a), the back surface of the back plate (2 a) is provided with a convex lug (2 a 1), the brake shoe assembly is characterized in that the mounting part (1 a) is provided with a positioning surface (1 a 3) for supporting the lug (2 a 1), a pressing plate (4) for enabling the lug (2 a 1) to be kept abutted against the positioning surface (1 a 3) is detachably fixed on the top of the mounting part (1 a), a positioning groove (1 a 4) is arranged on the inner side of the mounting part (1 a), the back surface (1 a) penetrating through the top part (1 a) of the mounting part (1 a) towards the top direction of the mounting part (1 a), the top surface (1 a) can be embedded into the positioning groove (2 a) of the top part (1 a) and the positioning block (1 a) is further provided with a large notch (5) capable of being embedded into the positioning groove (1 a) on the top (1 a) and the top (1 a) of the positioning part (1 a) is provided with a large notch (2), the bottom surface of the large notch (1 a 1) is concavely provided with a small notch (1 a 2), the bottom surface of the small notch (1 a 2) is the positioning surface (1 a 3), the convex block (2 a 1) is positioned in the small notch (1 a 2), and the top of the convex block (2 a 1) extends out of the large notch (1 a 1).
2. Brake according to claim 1, characterized in that the detent (1 a 4) penetrates the bottom surface of the mounting part (1 a) in the direction of the bottom of the mounting part (1 a) and forms an outlet (1 a 6).
3. Brake according to claim 2, characterized in that the top of the positioning block (2 a 2) is located at the inlet (1 a 5) or protrudes out of the inlet (1 a 5), the bottom of the positioning block (2 a 2) protruding out of the outlet (1 a 6).
4. A brake according to any one of claims 1-3, characterized in that a gap (2 a 3) is provided between the positioning block (2 a 2) and the bottom surface of the positioning groove (1 a 4).
5. A brake according to any one of claims 1-3, characterized in that the brake further comprises a bracket (5) and a counter brake shoe assembly (3) for co-operating with the inner side of the brake disc (6), the bracket (5) having a detent (5 a) at its top, the counter brake shoe assembly (3) being located in the detent (5 a), the pressure plate (4) acting on the counter brake shoe assembly (3) to hold the counter brake shoe assembly (3) against the bottom surface of the detent (5 a), the counter brake shoe assembly (3) being insertable into and removable from the detent (5 a) through the top of the caliper body (1), the bracket (5) having a securing part (5 b) on each side, the securing part (5 b) having a mating surface (5 b 1) on its front surface that is able to oppose the brake disc (6), the rim of the securing part (5 b) not protruding from the mating surface (5 b 1).
6. Brake according to claim 5, characterized in that at least one of the fixing portions (5 b) has a protruding stop (5 b 4) on its outer side, and at least one of the caliper bodies (1) is provided with a protrusion (1 c 1) corresponding to the stop (5 b 4), the protrusion (1 c 1) being arranged opposite to the front face of the stop (5 b 4).
7. The brake block assembly is arranged on a caliper body (1) of a brake, the caliper body (1) comprises a mounting part (1 a), the brake block assembly (2) comprises a back plate (2 a) which can be abutted against the inner side surface of the mounting part (1 a), a lug (2 a 1) which can be supported on the mounting part (1 a) is arranged on the back surface of the back plate (2 a), the brake block assembly is characterized in that a positioning groove (1 a 4) is arranged on the inner side surface of the mounting part (1 a), the positioning groove (1 a 4) penetrates through the top surface of the mounting part (1 a) towards the top direction of the mounting part (1 a) and forms an inlet (1 a 5), a positioning block (2 a 2) which can be matched with the positioning groove (1 a 4) is further arranged on the back surface of the back plate (2 a), the positioning block (2 a 2) can be embedded into and taken out of the positioning groove (1 a 4) through the inlet (1 a 5), a large notch (1 a 1) is arranged at the inner side edge of the top of the mounting part (1 a), the large notch (1 a) is arranged on the inner side surface of the back plate (1 a), the large notch (1 a) is arranged on the bottom surface (1 a), and the notch (1 a) can be embedded into the small notch (1 a) and can be positioned on the small notch (1 a) and can be embedded into the small notch (1 a 3).
8. The brake shoe assembly of claim 7, wherein the top surface of the projection (2 a 1) is flush with the top surface of the back plate (2 a), and the bottom surface of the positioning block (2 a 2) is flush with the bottom surface of the back plate (2 a).
9. Brake pad assembly according to claim 7 or 8, characterized in that the positioning block (2 a 2) is arranged separately from the bump (2 a 1) or the positioning block (2 a 2) is directly connected to the bump (2 a 1) and the connection of the positioning block (2 a 2) and the bump (2 a 1) is provided with a yielding groove (2 a 5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911266795.XA CN110821985B (en) | 2019-12-11 | 2019-12-11 | A brake and brake block assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911266795.XA CN110821985B (en) | 2019-12-11 | 2019-12-11 | A brake and brake block assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110821985A CN110821985A (en) | 2020-02-21 |
| CN110821985B true CN110821985B (en) | 2025-02-11 |
Family
ID=69544854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911266795.XA Active CN110821985B (en) | 2019-12-11 | 2019-12-11 | A brake and brake block assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110821985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638966B (en) * | 2021-08-12 | 2023-01-17 | 隆中控股集团股份有限公司 | Lever and disc brake |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712750A (en) * | 2004-06-24 | 2005-12-28 | 英国美瑞特重型车制动系统有限公司 | Brake assembly |
| EP1637762A2 (en) * | 2004-09-17 | 2006-03-22 | Wabco Radbremsen GmbH | Brake pad support |
| CN103687692A (en) * | 2011-04-13 | 2014-03-26 | 卢卡斯汽车股份有限公司 | Method for producing a brake carrier for a disc brake and brake carrier for a disc brake |
| CN211117257U (en) * | 2019-12-11 | 2020-07-28 | 隆中控股集团股份有限公司 | Brake and brake block assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201554799U (en) * | 2009-12-24 | 2010-08-18 | 隆中控股集团有限公司 | Brake pad assembly used for disc-type brake |
| US20120067678A1 (en) * | 2010-09-21 | 2012-03-22 | Kelsey-Hayes Company | Anchor bracket for use in a disc brake assembly and method for making the same |
| US20160356329A1 (en) * | 2015-06-04 | 2016-12-08 | Wabco Europe Bvba | Integrated torque plate and brake carrier |
| US9939033B2 (en) * | 2016-05-11 | 2018-04-10 | Bendix Spicer Foundation Brake Llc | Biased plunger arrangement for a brake pad retention system |
| CN209510973U (en) * | 2019-01-25 | 2019-10-18 | 隆中控股集团股份有限公司 | Disk brake |
-
2019
- 2019-12-11 CN CN201911266795.XA patent/CN110821985B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712750A (en) * | 2004-06-24 | 2005-12-28 | 英国美瑞特重型车制动系统有限公司 | Brake assembly |
| EP1637762A2 (en) * | 2004-09-17 | 2006-03-22 | Wabco Radbremsen GmbH | Brake pad support |
| CN103687692A (en) * | 2011-04-13 | 2014-03-26 | 卢卡斯汽车股份有限公司 | Method for producing a brake carrier for a disc brake and brake carrier for a disc brake |
| CN211117257U (en) * | 2019-12-11 | 2020-07-28 | 隆中控股集团股份有限公司 | Brake and brake block assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110821985A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1865218B1 (en) | Opposed piston type disc brake | |
| KR101981821B1 (en) | Disc brake for a motor vehicle and brake pad | |
| US20050284710A1 (en) | Brake assembly | |
| JP2004132545A (en) | Brake caliper | |
| US9097304B2 (en) | Disc brake pad mounting and retention system and method | |
| CN110821985B (en) | A brake and brake block assembly | |
| KR20040102232A (en) | Disc brake equipped with a floating caliper and several outer brake pads directly supported on the brake anchor plate | |
| WO2017044452A1 (en) | Disc brake pad mounting and retention system and method | |
| JP4651640B2 (en) | Opposite piston type disc brake | |
| CN110905945B (en) | Method for replacing hub disc assembly or brake disc | |
| CN211259424U (en) | Brake | |
| CN211117267U (en) | Brake block assembly and brake | |
| CN211117258U (en) | Brake bracket and brake | |
| CN211117257U (en) | Brake and brake block assembly | |
| CN108425970A (en) | A kind of reinforced hot investment casting single shaft pin brake assembly | |
| JPH022098Y2 (en) | ||
| EP0094736B1 (en) | Disc brakes | |
| CN110748584A (en) | Brake bracket and brake | |
| CN217301360U (en) | Double-opening reinforced front drum brake | |
| US7216745B2 (en) | Mounting friction elements to disc brakes | |
| CN216742533U (en) | Wheel end structure of axle and axle | |
| JP2009216195A (en) | Floating caliper type disc brake | |
| JP5087645B2 (en) | Disc brake with pin rail caliper | |
| CN215720399U (en) | Stable-braking anti-drop wedge brake | |
| CN222208719U (en) | Heavy truck drum brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |