Brake caliper assembly

Abstract

The invention relates to the field of brake calipers, in particular to a brake caliper assembly which comprises a caliper body connected with a caliper body support through a guide assembly. The guide assembly comprises a guide mechanism, and the guide mechanism comprises a guide pin; the clamp body is connected with the clamp body bracket through a guide pin; the clamp body and the clamp body support are connected through at least two sets of guide mechanisms, and the adjacent guide mechanisms are distributed in a staggered mode. The invention discloses a brake caliper assembly. The brake caliper assembly disclosed by the invention is provided with the at least two guide mechanisms, and the two adjacent guide mechanisms are distributed in a staggered manner, that is, the height difference exists between the adjacent guide mechanisms, so that the probability of occurrence of the clamping stagnation problem of the caliper in the subsequent brake process can be reduced through the design; and the clamping stagnation risk of the calipers is further reduced.

Description

Technical Field

[0001] The invention relates to the field of brake calipers, in particular to a brake caliper assembly. Background Art

[0002] In a floating electronic caliper disc brake, the electronic caliper straddles the brake disc via the caliper body, and the caliper body is connected to the bracket in a floating manner via guide pins. Since the electronic caliper is equipped with a motor assembly, the center of mass of the caliper deviates from the contact point between the guide pin and the bracket, and as the friction plate wears, the center of mass of the caliper moves away from the contact point between the guide pin and the bracket, which will increase the sliding resistance of the caliper guide pin system, further aggravating the risk of the caliper guide pin getting stuck in the guide hole of the bracket, resulting in large caliper drag.

[0003] On the other hand, the guide pins and brackets of the guide system are easily limited by the layout space of the brake disc, rim, etc.

[0004] At the same time, because the existing floating electronic caliper is equipped with a motor, the center of mass of the caliper deviates from the contact point between the guide pin and the bracket, that is, the center of mass of the guide structure of the electronic caliper cannot be effectively balanced, the risk of the caliper getting stuck during use increases, and the arrangement is difficult.

[0005] Therefore, in order to solve or improve at least one of the above problems, it is necessary to optimize the design of the existing caliper assembly or the guide structure for the caliper assembly. Summary of the invention

[0006] The object of the present invention is to provide a novel caliper assembly which can reduce or lower the risk of caliper jamming during operation.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A brake caliper assembly comprises a caliper body, wherein the caliper body is connected to a caliper body bracket through a guide assembly;

[0009] The guide assembly includes a guide mechanism, and the guide mechanism includes a guide pin; the caliper body is connected to the caliper body bracket through the guide pin;

[0010] The clamp body and the clamp body bracket are connected via at least two sets of guide mechanisms, and adjacent guide mechanisms are staggered.

[0011] The guide pin comprises a guide pin body, the guide pin body comprises a pin shaft body, an inserting portion is provided at the end of the pin shaft body, and the inserting portion comprises a positioning boss arranged at the end of the pin shaft body.

[0012] A supporting flange is provided on the positioning boss.

[0013] The guide mechanism also includes a fixing portion; the fixing portion includes a mounting bolt connected to the guide pin; the mounting bolt is arranged through the guide pin body.

[0014] The guide pin body is provided with a through hole, and the mounting bolt is coaxially arranged with the through hole; the mounting bolt in the guide mechanism passes through the through hole and penetrates the guide pin body; the through hole includes a lower through hole and an upper through hole, the upper through hole is connected with the lower through hole, and the through hole is a stepped groove.

[0015] The guide mechanism also includes a protective mechanism sleeved on the guide pin, and the protective mechanism includes an end cover sleeved on one end of the guide pin and a dust cover sleeved on the other end of the guide pin; a dust cover clamping groove is provided on the guide pin body in the guide pin.

[0016] Both sides of the pliers body are connected to the pliers body bracket via at least one guide mechanism respectively; and the guide mechanisms are distributed parallel to each other.

[0017] The clamp body bracket is provided with a bracket groove; the guide pin in the guide mechanism is inserted into the bracket groove.

[0018] The pliers body is provided with a guide hole, and the pliers body is sleeved on the guide pin through the guide hole.

[0019] The guide pin protrudes out of the guide hole.

[0020] The advantages of the present invention are:

[0021] The present invention discloses a brake caliper assembly; the brake caliper assembly disclosed in the present invention has at least two guide mechanisms, and two adjacent guide mechanisms are staggered, that is, adjacent guide mechanisms have a height difference. Such a design can reduce the probability of the caliper getting stuck during the subsequent braking process, thereby reducing the risk of the caliper getting stuck.

[0022] In addition, the guide assembly disclosed in the present invention has a supporting flange, and the supporting flange plays a good limiting role to prevent the guide pin from sliding in the axial direction. At the same time, the supporting flange plays a good supporting and positioning role, which is beneficial to balancing the bending moment generated by the radial force on the guide pin.

[0023] In addition, it is required that the adjacently arranged guide mechanisms are staggered. Here, the staggered distribution is mainly to make the two guide mechanisms have a certain height difference in the axial direction; this can effectively balance the center of mass problem of the electronic caliper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0025] Figure 1It is a structural schematic diagram of the guide assembly in the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the guide assembly in the present invention in a fully worn state.

[0027] Figure 3 This is a schematic diagram of the structure when the guide mechanism of the present invention adopts the first offset distribution.

[0028] Figure 4 This is a schematic diagram of the structure when the guide mechanism of the present invention adopts the second offset distribution.

[0029] The marks in the above figure are:

[0030] 1. Clamp body bracket; 2. Guide pin; 3. Dust cover; 4. Clamp body; 5. End cover; 6. Mounting bolts; 10. Motor; 11. Inner friction plate; 12. Outer friction plate; 25. Low guide pin assembly; 26. High guide pin assembly; 31. Positioning boss; 30. Support flange; 32. Guide hole; 33. Distance between guide pin and guide hole when inner and outer friction plates are fully worn; 34. Sealing position of guide pin; 35. Sealing position of guide hole and dust cover; 36. Sealing position of guide hole and end cover. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0032] A brake caliper assembly comprises a caliper body 4, wherein the caliper body 4 is connected to a caliper body bracket 1 via the guide assembly; the caliper body 4 is connected to the caliper body bracket 1 via at least two sets of guide mechanisms, and adjacent guide mechanisms are staggered. The present invention discloses a brake caliper assembly; the brake caliper assembly disclosed in the present invention has at least two guide mechanisms, and two adjacent guide mechanisms are staggered, that is, adjacent guide mechanisms have a height difference, such a design can reduce the probability of caliper jamming during subsequent braking, thereby reducing the risk of caliper jamming.

[0033] Specifically; in the present invention, the caliper body 4 and the caliper body bracket 1 in the brake caliper assembly are mainly connected through the guide assembly. In actual design, the guide assembly includes at least two guide mechanisms, and the adjacent guide mechanisms are staggered and parallel. Here, the staggered parallel distribution means that the corresponding two guide mechanisms are not axially symmetrically distributed, but have a certain height difference in the axial direction. Then, when the guide assembly is subsequently used on the caliper assembly, two guide mechanisms with a height difference are formed. Based on such a design, the guiding range of the caliper assembly is increased to a certain extent, that is, the axial span of the guide pin 2 in the two guide mechanisms is increased. Overall, it is equivalent to increasing the overall axial guiding distance of the guide assembly. Based on such a design, the problems of large drag and eccentric wear caused by the jamming of the guide pin 2 and the guide hole 32 and the failure of the outer plate to return to its original position during the braking process can be effectively improved.

[0034] In addition, in actual use, the weight of the caliper head is increased due to the installation of the motor 10 of the electronic caliper. With the above-mentioned design, when the guide pin 2 is fixed on the caliper body bracket 1, a reverse guide system is formed, and the reverse high and low guide pin 2 can effectively balance the center of mass problem of the electronic caliper, so that the brake caliper assembly has a better use effect.

[0035] Meanwhile, in the present invention, the guide assembly is mainly used for the movement guidance of the electronic caliper, and is mainly used for the movement guidance of the caliper body 4 and the caliper body bracket 1 .

[0036] Specifically, the guide assembly disclosed in the present invention mainly includes a guide mechanism, and the guide mechanism includes a guide pin 2; the different settings and fixed positions of the guide mechanism can form a reverse or forward guide system in actual application.

[0037] The guide pin 2 in the guide mechanism actually plays a guiding role. The main structure of the guide pin 2 is a columnar structure. Due to subsequent actual production needs, bosses or grooves are added to the main structure in order to cooperate with related components.

[0038] In actual use, the guide pin 2 passes through the edge of the caliper body 4 in the brake caliper assembly and is then connected to the corresponding caliper body bracket 1. The guiding function in actual use is achieved through the cooperation between the guide pin 2 and the caliper body 4 or the guide pin 2 and the caliper body bracket 1.

[0039] Through the different fixing methods of the guide pin and the caliper body or the caliper body bracket, a reverse guide system and a forward guide system are formed.

[0040] Furthermore, the guide mechanism described in the present invention includes a fixing part; the setting of the fixing part in the present invention is mainly used to fix the guide pin 2 on the corresponding component. Specifically, the fixing part disclosed in the present invention mainly includes a mounting bolt 6 connected to the guide pin 2; through the setting of the mounting bolt 6, the guide pin 2 is connected to the corresponding caliper body 4 or the caliper body bracket 1; because the position of the guide pin 2 is fixed differently, a reverse or forward guide system can be formed during actual use; it is convenient for subsequent normal use.

[0041] In addition, in the present invention, a through hole is provided on the guide pin body, and the mounting bolt 6 in the guide mechanism passes through the guide pin body through the through hole; the setting of the through hole not only plays a role in weight reduction, but also facilitates the penetration of the mounting bolt 6. In subsequent use, the mounting bolt 6 can pass through the guide pin 2 and connect with the clamp body bracket 1 to form a reverse guide system, which is convenient for subsequent use; in addition; in the present invention, the through hole includes a lower through hole and an upper through hole, and the upper through hole is connected to the lower through hole, and the inner diameter of the lower through hole is required to be smaller than the inner diameter of the upper through hole, so that the through hole is a stepped groove; based on the above setting, the through hole can be installed and assembled in the subsequent time, so as to realize the installation bolt 6 sinking into the through hole setting, thereby avoiding the installation bolt 6 protruding out of the guide pin 2 arrangement.

[0042] Furthermore, in the present invention, the guide pin 2 includes a guide pin body, and the guide pin body includes a pin shaft body. In the present invention, the pin shaft body is a guide body, which facilitates the sliding of the corresponding component on the pin shaft body, and a plug-in portion is provided at the end of the pin shaft body. The setting of the plug-in portion facilitates the installation between the guide pin 2 and the corresponding component. The installation method can be an interference fit, and of course it can also be other fixing methods, mainly to achieve the fixed locking of the guide pin 2. In the reverse guide system disclosed in the present invention, the guide pin 2 is fixed to the caliper body bracket 1 through the plug-in portion; specifically, the plug-in portion in the present invention includes a positioning boss 31 arranged at the end of the pin shaft body; the positioning boss 31 can be a cylindrical structure; it can also be a structure that plays a role; as long as the connection between the guide pin 2 and the corresponding component can be achieved; in addition, In the present invention, the positioning boss 31 and the pin shaft body are equivalent to a two-stage structure. The pin shaft body plays a good guiding role in subsequent use, and the positioning boss 31 plays a good plug-in limiting role. In other words, the positioning boss 31 disclosed in the present invention can realize the installation and positioning of the guide pin 2. During specific implementation, the positioning boss 31 is plugged into the countersunk groove or groove of the corresponding component. For example, a bracket groove 101 is provided on the caliper body bracket 1 of the present invention. During actual assembly, the guide pin 2 tube positioning boss 31 is plugged into the bracket groove 101, and then the guide pin 2 is axially locked by installing the bolt 6. Based on the cooperation of the above two fixing methods, the stability of the position of the guide pin 2 is guaranteed to a greater extent, and at the same time, the difficulty of the guide pin 2 being deflected and displaced is greatly increased; thereby avoiding the increased risk of the caliper being stuck due to the offset of the guide pin 2.

[0043] Furthermore, a supporting flange 30 is provided on the positioning boss 31 described in the present invention; in the present invention, the supporting flange 30 is a raised ring structure, and the outer diameter of the positioning boss 31 is larger than the outer diameter of the pin shaft body and the positioning boss 31, and is also larger than the size of the groove on the plug-in component corresponding to the guide pin 2. Specifically, the outer diameter of the supporting flange 30 is larger than the inner diameter of the bracket groove 101. With this arrangement, during subsequent assembly and use, the supporting flange 30 can be attached to the end face of the clamp body bracket 1, which plays a good limiting role, while increasing the restraining force of the guide pin 2, avoiding the deviation of the guide pin 2, and at the same time helping to balance the bending moment caused by the radial force on the guide pin 2, thereby better ensuring the normal operation of the guide pin 2.

[0044] In addition, the guide mechanism described in the present invention also includes a protective mechanism sleeved on the guide pin 2, and the protective mechanism includes an end cover 5 sleeved on one end of the guide pin 2 and a dust cover 3 sleeved on the other end of the guide pin 2; in the present invention, the end cover 5 and the dust cover 3 mainly play a good protective role, mainly for dust and water prevention. In specific implementation, the end cover 5 and the dust cover 3 are only arranged at the two ends of the guide pin 2. In specific connection, the end cover 5 and the dust cover 3 are equivalent to being clamped on the caliper body 4 or the caliper body bracket 1; in the reverse guide system, the end cover 5 is clamped on the caliper body 4 and arranged at one end of the guide pin 2, one end of the dust cover 3 is connected to the caliper body 4, and the other end is connected to the guide pin body; the main body of the dust cover 3 is a rubber part with a certain deformation ability; based on the above design, the guide assembly has its own protection function.

[0045] Furthermore, in the present invention, each guide assembly includes at least two guide mechanisms, and adjacent guide mechanisms are distributed in staggered parallel manner; here, staggered parallel distribution means that the corresponding two guide mechanisms are not axially symmetrically distributed, but have a certain height difference in the axial direction; and then, when the guide assembly is subsequently used on the caliper assembly, two guide mechanisms with a height difference are formed. Based on such a design, the guiding range of the caliper assembly is increased to a certain extent, that is, the axial span of the guide pin 2 in the two guide mechanisms is increased. Overall, it is equivalent to increasing the overall axial guiding distance of the guide assembly, which can effectively improve the problems of large drag, eccentric wear, etc. caused by the jamming of the guide pin 2 and the guide hole 32 and the failure of the outer plate to return to its original position during braking.

[0046] At the same time, the present invention requires that both sides of the caliper body be connected to the caliper body bracket through at least one of the guide mechanisms; each of the guide mechanisms is distributed parallel to each other; through such a setting, both sides of the caliper body can be connected to the caliper body bracket, which can not only ensure the linearity of the relative movement between the caliper body and the caliper body bracket, but also better ensure the integrity of the brake caliper assembly, because the guide mechanism is equivalent to being distributed on both sides between the caliper body and the caliper body. Such a setting can balance the forces on both sides between the caliper body and the caliper body, and avoid the problem of excessive wear on one side between the caliper body and the caliper body caused by the guide mechanism being arranged on one side between the caliper body and the caliper body.

[0047] In addition, in actual use, the weight of the caliper head is increased due to the installation of the motor 10 of the electronic caliper. With the above-mentioned design, when the guide pin 2 is fixed on the caliper body bracket 1, a reverse guide system is formed, and the reverse high and low guide pin 2 can effectively balance the center of mass problem of the electronic caliper, so that the brake caliper assembly has a better use effect.

[0048] Furthermore, a dust cover snap-in groove 41 is provided on the guide pin body in the present invention; in actual design, the dust cover snap-in groove 41 is arranged at the connection between the pin shaft body and the supporting flange 30. Such a setting not only facilitates the snap-in fixation of the dust cover 3, but also allows the dust cover 3 to squeeze the supporting flange 30 during subsequent use, thereby ensuring the stability of the position of the guide pin 2.

[0049] Furthermore, in the present invention, a bracket groove 101 is provided on the clamp body bracket 1; the guide pin 2 in the guide mechanism is inserted into the bracket groove 101; the setting of the bracket groove 101 of the present invention facilitates the subsequent connection between the guide pin 2 and the clamp body bracket 1, and facilitates the subsequent formation of a reverse guide system; in addition, in the present invention, the bracket groove 101 is a stepped groove, mainly including an upper sinking groove and a lower sinking groove, the size of the upper sinking groove is larger than the size of the lower sinking groove, the upper sinking groove is used to connect with the positioning boss 31 on the guide pin 2, and the lower sinking groove is used to connect with the mounting bolt 6; based on the above design, the double connection of the bracket groove 101 and the guide pin 2 is realized; the stability of the connection between the clamp body bracket 1 and the guide pin 2 is better guaranteed.

[0050] Furthermore, in the present invention, a guide hole 32 is provided on the caliper body 4. The setting of the guide hole 32 facilitates the socketing of the caliper body 4 on the guide pin 2. Specifically, the caliper body 4 is socketed on the guide pin 2 through the guide hole 32; in subsequent use, the caliper body 4 slides on the guide pin 2 through the guide hole 32, and then realizes the final guiding effect. At the same time, in the present invention, a slot assembly is provided on the caliper body 4; the slot assembly includes an upper slot 61 for socketing the end cover 5 and a lower slot 51 for socketing the dust cover 3; in actual connection, the end cover 5 is socketed in the upper slot 61 of the caliper body 4, one end of the dust cover 3 is connected to the lower slot 51, and the other end is connected to the dust cover socket 41 on the guide pin body; in other words, the setting of the slot assembly facilitates the assembly of the end cover 5 and the dust cover 3.

[0051] Furthermore, in the present invention, the guide pin 2 is protruding from the guide hole 32; in the present invention, the guide pin 2 is required to be protruding from the guide hole 32, which requires that during the entire friction plate wear process of the caliper, the end of the guide pin 2 is located outside the guide hole 32; in other words, it requires that when the inner friction plate 11 and the outer friction plate 12 are fully worn, the top of the guide pin 2 does not sink into the guide hole 32 of the caliper body 4. Such a design is conducive to reducing the sliding resistance of the guide pin 2 and better reducing the risk of caliper sticking.

[0052] The specific implementation plan is as follows:

[0053] The brake caliper disclosed in the present invention is mainly a floating electronic caliper. In actual arrangement, the guide assembly in the brake caliper assembly is arranged into a reverse or forward guide pin 2 according to the installation position of the motor 10; in actual arrangement, the guide assembly mainly includes two guide mechanisms, and the two guide mechanisms are distributed on both sides of the brake caliper assembly, and the guide mechanisms are axially staggered; one forms a high guide pin assembly 26; the other forms a low guide pin assembly 25; in actual arrangement, there is a height difference between the high guide pin assembly 26 and the low guide pin assembly 25, and the guide pin 2 is fixed to the caliper body bracket 1 or the caliper body 4 by a guide pin bolt 6, and as the caliper brakes, it slides axially in the guide hole 32 on the caliper body 4 or the caliper body bracket 1.

[0054] The positioning boss 31 of the guide pin 2 of the reverse guide system sinks into the caliper body bracket 1, and the supporting flange 30 is in surface contact with the caliper body bracket 1. This feature is helpful in resisting the bending moment generated by the lateral force of the caliper body 4 component on the guide pin 2.

[0055] At the same time, the guide pin 2 and the caliper body 4 are sealed at three positions through the guide pin dust cover 3 and the guide pin end cover 5, namely, the guide pin sealing position 34, the guide hole 32 and the dust cover 3 sealing position 35; and the guide hole 32 and the end cover 5 sealing position 36.

[0056] When the inner friction plate 11 and the outer friction plate 12 are in the fully worn position, the top end of the guide pin 2 does not sink into the guide hole 32 of the caliper body 4, which is beneficial to reducing the sliding resistance of the guide pin 2.

[0057] In actual design, there is a certain height difference between the guide pins 2 in the two guide mechanisms in the axial direction, which increases the axial span of the two pins.

[0058] In addition, in the present invention, the guide pin 2 in the above-mentioned guide mechanism is fixed to the caliper body bracket 1 by bolts 6, and is positioned by the bracket groove 101 and the supporting flange 30; such a setting is helpful to resist the bending moment generated by the lateral force of the caliper body 4 component on the guide pin 2.

[0059] In addition, during the braking process, the guide pin 2 does not slide in the axial direction, and the caliper body 4 slides axially on the guide pin 2 through the guide hole 32 of the caliper body 4; and during the entire friction plate wear process of the caliper, the top of the guide pin 2 does not exceed the guide hole 32 on the caliper body 4; the high and low guide pin 2 improves the problems of large drag and eccentric wear caused by the jamming of the guide pin 2 and the guide hole 32 and the failure of the outer plate to return to its original position during the braking process.

[0060] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A brake caliper assembly, characterized in that: It comprises a caliper body, wherein the caliper body is connected to a caliper body support through a guide assembly; The guide assembly includes a guide mechanism, and the guide mechanism includes a guide pin; the caliper body is connected to the caliper body bracket through the guide pin; The clamp body and the clamp body bracket are connected via at least two sets of guide mechanisms, and adjacent guide mechanisms are staggered.

2. A brake caliper assembly according to claim 1, characterized in that: The guide pin comprises a guide pin body, the guide pin body comprises a pin shaft body, an inserting portion is provided at the end of the pin shaft body, and the inserting portion comprises a positioning boss arranged at the end of the pin shaft body.

3. A brake caliper assembly according to claim 2, characterized in that: A supporting flange is provided on the positioning boss.

4. A brake caliper assembly according to claim 1, characterized in that: The guide mechanism also includes a fixing portion; the fixing portion includes a mounting bolt connected to the guide pin; the mounting bolt is arranged through the guide pin body.

5. A brake caliper assembly according to claim 4, characterized in that: The guide pin body is provided with a through hole, and the mounting bolt is coaxially arranged with the through hole; the mounting bolt in the guide mechanism passes through the through hole and penetrates the guide pin body; the through hole includes a lower through hole and an upper through hole, the upper through hole is connected with the lower through hole, and the through hole is a stepped groove.

6. A brake caliper assembly according to any one of claims 1 to 5, characterized in that: The guide mechanism also includes a protective mechanism sleeved on the guide pin, and the protective mechanism includes an end cover sleeved on one end of the guide pin and a dust cover sleeved on the other end of the guide pin; a dust cover clamping groove is provided on the guide pin body in the guide pin.

7. A brake caliper assembly according to any one of claims 1 to 5, characterized in that: Both sides of the pliers body are connected to the pliers body bracket via at least one guide mechanism respectively; and the guide mechanisms are distributed parallel to each other.

8. The brake caliper assembly according to claim 1, characterized in that: The clamp body bracket is provided with a bracket groove; the guide pin in the guide mechanism is inserted into the bracket groove.

9. The brake caliper assembly according to claim 1, characterized in that: The pliers body is provided with a guide hole, and the pliers body is sleeved on the guide pin through the guide hole.

10. A brake caliper assembly according to claim 9, characterized in that: The guide pin protrudes out of the guide hole.

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