Split brake and assembly method

Abstract

The application discloses a split brake and an assembling method, and belongs to the technical field of automobile air pressure disc brakes. The split brake comprises a caliper body and a support, and the two are detachably installed. The caliper body comprises a detachably connected fixed caliper head and a caliper tail. In the assembled state, the support is additionally provided with an inner friction plate, and a corresponding rotating shaft assembly is arranged in the caliper head. The inner friction plate and the rotating shaft assembly are rotationally matched with each other. The caliper body of the split brake comprises the caliper head and the caliper tail, and the caliper head is fixed through screws or other fixing modes. The caliper head inner cavity is provided with a caliper head inner cavity side convex platform. The inner cavity side convex platform is gap matched with a corresponding reference seat side convex platform, so that the installation mode of the rotating shaft assembly eccentric bracket and the inner friction plate is effectively prevented. Through the gap matching between the support guide groove and the inner friction plate convex platform, the number of product parts is reduced, the total mass is reduced, and meanwhile, most of the existing parts can be used, and the interchangeability is very strong.

Description

Technical Field

[0001] This invention relates to the field of automotive air disc brake technology, and more particularly to a split-type brake and its assembly method. Background Technology

[0002] Currently, most 16-inch single-actuator brakes on the market use one-piece caliper bodies because they offer better rigidity and are easier to assemble. The disadvantage is that a separate top cover needs to be manufactured to match the one-piece caliper, and this cover is generally a forged part, resulting in higher costs. The top cover and the one-piece caliper are fixed together by evenly distributed screws, which makes the outer contour of the brake head appear larger, affecting brake installation—specifically, one-piece caliper brakes are currently mostly installed on the front axle and cannot be installed on the rear axle, severely impacting the compatibility with 16-inch air disc brakes.

[0003] Therefore, the market needs a 16-inch air disc brake that can be widely used on the rear axle, while having braking performance that is almost the same as conventional brakes and manufacturability that meets mass production requirements. Summary of the Invention

[0004] This invention provides a split-type brake and its assembly method to solve the aforementioned technical problems.

[0005] The present invention adopts the following technical solution: it includes a caliper body and a bracket, which are detachably installed. The caliper body includes a detachably connected and fixed caliper head and caliper tail. In the assembled state, the bracket is also provided with an inner friction plate. Correspondingly, a rotating shaft assembly is provided in the caliper head. The inner friction plate and the rotating shaft assembly are in rotational cooperation.

[0006] Furthermore, the pliers head and tail are provided with positioning screws and fully threaded screws, which are used to fix them. The pliers head is cast and fixed to the pliers tail by four screws, together forming a split pliers body. The pliers body is connected to the bracket by guide pin screws.

[0007] Furthermore, the rotating shaft assembly also includes a reference seat, a pressure arm, and a rotating shaft. The rotating shaft is mounted on the reference seat, the pressure arm covers the reference seat and the two are tightly fitted together, and the bottom of the rotating shaft is provided with an anti-rotation pin. The inner friction plate is provided with an anti-rotation hole that rotates with the anti-rotation pin.

[0008] Furthermore, the reference base is provided with reference base side bosses at both ends, and the pliers head is provided with pliers head inner cavity side bosses that intermittently cooperate with the reference base side bosses.

[0009] Furthermore, the cross-section of the side boss of the reference base is a flat surface and consists of three parts from top to bottom: an upper trapezoidal structure, a rectangular structure, and a lower trapezoidal structure. The cross-section of the side boss of the pliers head cavity is divided into an upper rectangular structure and a lower rectangular structure from top to bottom. In the installed state, the upper trapezoidal structure, the rectangular structure, and the lower trapezoidal structure all correspond to the upper rectangle.

[0010] Furthermore, at least two sets of contact bosses are distributed on both sides of the reference base, with two contact bosses in each set, and corresponding bosses are provided inside the clamp head.

[0011] Furthermore, the inner friction plate is provided with two inner friction plate bosses located on its two sides respectively, and the bracket is provided with bracket guide grooves corresponding to the two inner friction plate bosses one by one. The inner friction plate bosses and the bracket guide grooves are in clearance fit.

[0012] A method for assembling a split-type brake includes the following steps:

[0013] S1: Assemble the components between the shaft assemblies in sequence, and the assembly method is basically the same as that of a conventional integral shaft assembly;

[0014] S2: Inverted assembly is adopted. After the shaft assembly is installed, the pressure arm is tied tightly with nylon cable ties to fix its relative position.

[0015] S3: Install the entire shaft assembly into the inner cavity of the pliers head, with the side boss of the inner cavity of the pliers head and the side boss of the reference seat having a clearance fit.

[0016] S4: The inner friction plate is installed on the bracket, and the assembly of the two is completed by the clearance fit between the inner friction plate boss and the bracket guide groove;

[0017] S5: The bracket is fixedly connected to the pliers tail by screws, and the pliers tail is fixedly connected to the pliers head by positioning screws and fully threaded screws.

[0018] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0019] 1. The split brake provided by this invention includes a caliper body comprising a caliper head and a caliper tail, which are fixed together by screws or other means. A side boss is present on the inner cavity of the caliper head, and the side boss has a clearance fit with the corresponding side boss of the reference seat, effectively preventing the shaft assembly from wobbling.

[0020] 2. The mounting method of the bracket and the inner friction plate, through the clearance fit between the bracket guide groove and the inner friction plate boss, effectively eliminates the influence of the rotation of the inner friction plate on the braking clearance during braking. Simultaneously, the inner friction plate also includes an anti-rotation hole, whose function is equivalent to the push plate component in a conventional integral brake; this reduces the number of parts and the overall weight of the product, while also allowing for the use of most existing parts, resulting in strong interchangeability.

[0021] 3. The swivel assembly is secured with nylon cable ties and installed upside down into the caliper body cavity without the need to change the parts fit, which is convenient and quick, while ensuring the versatility of the parts. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the split-type brake assembly of the present invention;

[0024] Figure 2 This is a schematic diagram illustrating the cooperation between the inner friction plate and the bracket of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of the mating area;

[0026] Figure 4 This is an assembly diagram of the rotating shaft assembly in this invention;

[0027] Figure 5 This is a schematic diagram of the inner cavity of the pliers head in this invention;

[0028] Figure 6 This is a schematic diagram of the assembly of the rotating shaft assembly and the caliper body in this invention;

[0029] Figure 7 This is a schematic diagram of a partial three-dimensional structure in this invention.

[0030] Figure Labels

[0031] 1—Pliers head, 2—Pliers tail, 20—Pliers body, 3—Bracket, 30—Spindle assembly, 31—Bracket guide groove, 4—Positioning screw, 5—Fully threaded screw, 6—Internal friction plate, 61—Internal friction plate boss, 62—Anti-rotation hole, 7—Nylon cable tie, 8—Reference seat, 81—Reference seat side boss, 9—Pressure arm, 10—Spindle, 101—Anti-rotation pin, 11—Pliers head inner cavity side boss, 12—Contact boss, 13—Corresponding boss. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0033] The following is in conjunction with the appendix Figure 1-7 The technical solutions provided in the various embodiments of the present invention will be described in detail.

[0034] This invention provides a split brake, including a caliper body 20 and a bracket 3, which are detachably installed. The caliper body 20 includes a detachably connected and fixed caliper head 1 and caliper tail 2. In the assembled state, the bracket 3 is also provided with an inner friction plate 6. Correspondingly, a rotating shaft assembly 30 is provided in the caliper head 1. The inner friction plate 6 and the rotating shaft assembly 30 are in rotational engagement.

[0035] The caliper body 20 and bracket 3 are fixedly connected by screws. The caliper body 20 is composed of a caliper head 1 and a caliper tail 2 connected by a positioning screw 4 and a fully threaded screw 5. The inner friction plate 6 is installed on the bracket 3 with a clearance fit. After the rotating shaft assembly 30 is pre-fixed by cable ties 7, it is inverted and installed into the inner cavity of the caliper body 20. The rotating shaft assembly 30 is fitted with the side boss 8181 of the reference seat and the side boss 11 of the inner cavity of the caliper head with a clearance fit to ensure that there is no wobble during braking. The remaining parts and installation are the same as those of a conventional integral brake, so they will not be described in detail.

[0036] Preferably, the pliers head 1 and pliers tail 2 are provided with positioning screws 4 and fully threaded screws 5, which are used to fix them. The pliers head 1 is cast and fixed to the pliers tail 2 by four screws, forming a split pliers body 20. The pliers body 20 is connected to the bracket 3 by guide pin screws. The connection between the pliers head 1 and pliers tail 2 is not limited to positioning screws 4 and fully threaded screws 5.

[0037] Preferably, the rotating shaft assembly 30 further includes a reference seat 8, a pressure arm 9, and a rotating shaft 10. The rotating shaft 10 is mounted on the reference seat 8, and the pressure arm 9 covers the reference seat 8 with a tight fit between them. A stop pin 101 is provided at the bottom of the rotating shaft 10. The inner friction plate 6 has a stop hole 62 that rotatably engages with the stop pin 101. The inner friction plate 6 and the rotating shaft assembly 30, through the engagement of the stop hole 62 and the stop pin 101, convert the rotation of the rotating shaft 10 into linear translation. Its compensation principle is similar to that of a conventional integral brake and will not be elaborated further. The inner friction plate boss 61 and the bracket guide groove 31 are in clearance fit, effectively preventing rotation of the inner friction plate 6 during braking, thus preventing any impact on the stability of the braking gap. This invention mainly integrates the function of the push plate in a conventional integral brake into the inner friction plate 6, thereby reducing the number of parts in the overall brake and correspondingly saving costs.

[0038] Preferably, the reference base 8 has side protrusions 81 at both ends, and the jaw 1 has side protrusions 11 that intermittently cooperate with the side protrusions 81. At least two sets of contact protrusions 12 are distributed on both sides of the reference base 8, with two protrusions in each set. The jaw 1 has corresponding protrusions 13 that correspond to the contact protrusions 12. The reference base 8 has six protrusions that cooperate with it to limit the swing of the rotating shaft 10. In particular, the gap fit on both sides effectively prevents the swing of the rotating shaft 10. The bottom cover is fixed to the jaw 1 by screws, thereby sealing the inner cavity.

[0039] The use of the above technical solutions reduces the number of product parts and the overall weight, while also allowing the use of most existing parts, resulting in strong interchangeability.

[0040] The parts in the pivot assembly 30 can be assembled into a small assembly externally. After the relative positions are fixed by cable ties, the whole assembly is inverted and installed into the inner cavity of the pliers head 1. There is no need to change the fitting method of the components, which ensures the versatility of the parts in the pivot assembly 30.

[0041] Preferably, the cross-section of the side boss 81 of the reference base is a flat surface and consists of three parts from top to bottom: an upper trapezoidal structure, a rectangular structure, and a lower trapezoidal structure. The cross-section of the side boss 11 of the inner cavity of the clamp head is divided into an upper rectangular structure and a lower rectangular structure from top to bottom. In the installed state, the upper trapezoidal structure, the rectangular structure, and the lower trapezoidal structure all correspond to the upper rectangular structure.

[0042] Preferably, the inner friction plate 6 is provided with two inner friction plate bosses 61, located on both sides respectively. The bracket 3 is provided with bracket guide grooves 31 corresponding to the two inner friction plate bosses 61. The inner friction plate bosses 61 and the bracket guide grooves 31 are in clearance fit. The bracket 3 has two guide grooves on the two horn surfaces near the caliper head 1. The inner friction plate 6 and the bracket 3 are engaged through the two guide grooves on the bracket 3 to prevent the rotation of the friction plate from affecting the braking clearance. There is a protrusion on each side of the steel back of the inner friction plate 6 that engages with the two guide grooves of the bracket 3. The guide grooves of the inner friction plate 6 and the bracket 3 are in clearance fit, eliminating the need for the push plate component in conventional brakes.

[0043] Preferably, the cross-section of the bracket guide groove 31 is a semi-circular structure one, and the cross-section of the inner friction plate boss 61 is a semi-circular structure two, with the radius of the semi-circular structure one being larger than the radius of the semi-circular structure two.

[0044] The components and assembly method of the rotating shaft assembly 30 are basically the same as those of the conventional integral brake. The main difference is that the assembly method provided by the present invention is inverted assembly. After the rotating shaft assembly is installed, the pressure arm 9 is tied with cable ties 7 to fix its relative position, so that the rotating shaft assembly 30 can be installed into the inner cavity of the caliper head 1. The inner cavity of the caliper head inner cavity side boss 11 and the reference seat side boss 8181 have a clearance fit, which ensures that the rotating shaft assembly 30 will not wobble in the inner cavity during the braking process of the brake.

[0045] A method for assembling a split-type brake includes the following steps:

[0046] The components of the rotating shaft assembly 30 are assembled sequentially, and the assembly method is basically the same as that of the conventional integral rotating shaft assembly 30. The inverted assembly is adopted. After the rotating shaft assembly is installed, the pressure arm 9 is tied with cable ties 7 to fix its relative position. The rotating shaft assembly 30 is installed into the inner cavity of the pliers head 1. The inner cavity of the pliers head inner side boss 11 and the reference seat side boss 81 are clearance fit. The inner friction plate 6 is installed on the bracket 3. The assembly between the two is completed by the clearance fit between the inner friction plate boss 61 and the bracket guide groove 31. The bracket 3 is fixedly connected to the pliers tail 2 by screws. The pliers tail 2 and the pliers head 1 are fixedly connected by positioning screws 4 and fully threaded screws 5.

[0047] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A split-type brake, characterized in that, The caliper includes a caliper body (20) and a bracket (3), which are detachably installed. The caliper body (20) includes a detachably connected and fixed caliper head (1) and caliper tail (2). In the assembled state, the bracket (3) is also provided with an inner friction plate (6). Correspondingly, a rotating shaft assembly (30) is provided in the caliper head (1). The inner friction plate (6) and the rotating shaft assembly (30) are in a rotating fit.

2. A split-type brake according to claim 1, characterized in that, The pliers head (1) and pliers tail (2) are provided with positioning screws (4) and fully threaded screws (5), which are used to fix them.

3. A split-type brake according to claim 1, characterized in that, The rotating shaft assembly (30) is installed upside down in the inner cavity of the pliers head (1). The rotating shaft assembly (30) also includes a reference seat (8), a pressure arm (9) and a rotating shaft (10). The rotating shaft (10) is clamped on the reference seat (8). The pressure arm (9) covers the reference seat (8) and the two are tightly fitted together. The bottom of the rotating shaft (10) is provided with a stop pin (101). The inner friction plate (6) is provided with a stop hole (62) that rotates with the stop pin (101).

4. A split-type brake according to claim 3, characterized in that, The reference base (8) has a reference base side boss (81) at both ends, and the pliers (1) has a pliers inner cavity side boss (11) that intermittently cooperates with the reference base side boss (81).

5. A split-type brake according to claim 4, characterized in that, The cross-section of the side boss (81) of the reference seat is a flat surface and consists of three parts from top to bottom: an upper trapezoidal structure, a rectangular structure and a lower trapezoidal structure. The cross-section of the side boss (11) of the inner cavity of the clamp head is divided into an upper rectangular structure and a lower rectangular structure from top to bottom. In the installed state, the upper trapezoidal structure, the rectangular structure and the lower trapezoidal structure all correspond to the upper rectangular structure.

6. A split-type brake according to claim 5, characterized in that, The reference base (8) is also provided with at least two sets of contact bosses on both sides, with two contact bosses in each set, and the clamp head (1) is provided with corresponding bosses that correspond to the contact bosses.

7. A split-type brake according to claim 1, characterized in that, The inner friction plate (6) is provided with an inner friction plate boss (61), and there are two of them located on its two sides respectively. The bracket (3) has two bracket guide grooves (31) on the two horn surfaces near the pliers (1). The inner friction plate boss (61) and the bracket guide groove (31) are in clearance fit.

8. A method for assembling a split-type brake according to any one of claims 1-7, characterized in that, Includes the following steps: S1: Assemble the components between the shaft assembly (30) in sequence, and the assembly method is basically the same as that of the conventional integral shaft assembly (30); S2: Inverted assembly is adopted. After the shaft assembly is installed, the pressure arm (9) is tied with cable ties (7) to fix its relative position. S3: The rotating shaft assembly (30) is installed into the inner cavity of the pliers head (1), and the side boss (11) of the inner cavity of the pliers head and the side boss (81) of the reference seat are fitted with clearance. S4: The inner friction plate (6) is installed on the bracket (3), and the assembly between the two is completed by the clearance fit between the inner friction plate boss (61) and the bracket guide groove (31); S5: The bracket (3) is fixedly connected to the pliers tail (2) by screws, and the pliers tail (2) is fixedly connected to the pliers head (1) by positioning screws (4) and fully threaded screws (5).

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