Built-in adjustment structure of a brake cylinder and brake cylinder

Abstract

This invention provides a built-in adjustment structure for a brake caliper, comprising: an adjusting wheel, a driving wheel, and a driven wheel. A first mounting position and a second mounting position are sequentially arranged on the outer surface of the adjusting wheel, wherein the first mounting position is close to one end face of the adjusting wheel, and the second mounting position is away from the end face relative to the first mounting position. The driving wheel is rotatably mounted on the adjusting wheel and located on the outer surface of the first mounting position. The driven wheel is mounted on the adjusting wheel and located on the outer surface of the second mounting position. The driving wheel rotates on its own on the outer surface of the adjusting wheel, or the rotation of the driving wheel drives the driven wheel to rotate together with the adjusting wheel. This invention's built-in adjustment structure for the brake caliper achieves built-in adjustment by setting a driving wheel and a driven wheel on the adjusting wheel, thereby improving service life. This invention also provides a brake caliper.

Description

Technical Field

[0001] This utility model relates to the technical field of brake calipers, and in particular to a built-in adjustment structure for a brake caliper and the brake caliper itself. Background Technology

[0002] Currently, many countries and regions require all service brakes of certain types of vehicles, such as trucks or special-purpose vehicles with a gross vehicle weight exceeding 3500 kg, to be equipped with brake clearance adjustment devices as an effective measure to ensure the braking safety of the entire vehicle. However, the vast majority of brake calipers produced by domestic manufacturers are of the pressure-plate type, as detailed in the instruction manual. Figure 12 As consumers increasingly prioritize vehicle safety, the drawbacks of pressure-type adjustable brake calipers have become more apparent. Firstly, pressure-type adjustable brake calipers operate in harsher environments, with higher workloads than those in regular passenger cars. Secondly, the pressure pads are externally mounted, making them susceptible to corrosion, rust, and reduced elasticity in harsh working conditions, affecting the caliper's adjustment function and consequently its braking stroke and braking force.

[0003] In view of this, the inventor has specifically designed a built-in adjustment structure for a brake caliper and a brake caliper, which leads to this invention. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a built-in adjustment structure for a brake caliper. By setting a drive wheel and a driven wheel on the adjustment wheel, the built-in adjustment is achieved using the drive wheel and the driven wheel, overcoming the defects of the existing external structure.

[0005] This utility model also proposes a brake slave cylinder.

[0006] The built-in adjustment structure of a brake caliper according to this utility model includes: An adjusting wheel, wherein a first mounting position and a second mounting position are sequentially provided on the outer surface of the adjusting wheel; A drive wheel, which is rotatably mounted on an adjusting wheel and located on the outer surface of the first mounting position; Driven wheel, the driven wheel is disposed on the adjusting wheel and located on the outer surface of the second mounting position; The drive wheel rotates on its own on the outer surface of the adjusting wheel, or the drive wheel rotates, causing the driven wheel and the adjusting wheel to rotate together.

[0007] The built-in adjustment structure of the brake caliper of this invention achieves built-in adjustment by setting a drive wheel and a driven wheel on the adjustment wheel, thereby improving service life.

[0008] In some embodiments of this utility model, a third mounting position is further provided on the outer surface of the adjusting wheel. The first mounting position, the second mounting position, and the third mounting position are arranged sequentially. The built-in adjusting structure also includes a first sealing member, which is disposed on the adjusting wheel and located on the outer surface of the third mounting position.

[0009] In some embodiments of this utility model, the first sealing element is a V-shaped sealing ring, which is sleeved on the outer surface of the adjusting wheel.

[0010] In some embodiments of this utility model, a first support gasket that abuts against the first seal is also provided in the third mounting position.

[0011] In some embodiments of this utility model, a first meshing tooth is provided on the end face of the drive wheel near the driven wheel, and a second meshing tooth is provided corresponding to the driven wheel, wherein the first meshing tooth and the second meshing tooth mesh with each other.

[0012] In some embodiments of this utility model, the driven wheel is a bevel gear.

[0013] In some embodiments of this utility model, the driven wheel is disposed on the outer surface of the second mounting position of the driven wheel by a locking member, so that the adjusting wheel rotates together when the driven wheel rotates.

[0014] In some embodiments of this utility model, the built-in adjustment structure further includes adjustment screws and support seats disposed at both ends of the adjustment wheel. The adjustment screws are threadedly connected to the adjustment wheel, and a spring is also disposed between the support seat and the drive wheel to restrict the drive wheel to the adjustment wheel.

[0015] In some embodiments of this utility model, the support base is locked to one end of the adjusting wheel by a bolt, and the end face of the adjusting wheel is provided with an internal threaded hole for screwing with the bolt.

[0016] In some embodiments of this utility model, the drive wheel is an external gear, which is an involute gear, and its outer surface is provided with helical teeth.

[0017] In some embodiments of this utility model, the parameters of the involute gear are: pressure angle of 20°, module of 1, number of teeth of 24, rotation angle of 30°, and helix direction of right-hand.

[0018] In some embodiments of this utility model, the built-in adjustment structure further includes an internal gear disposed on the outside of the drive wheel and internally cooperating with the drive wheel.

[0019] According to the present invention, a brake caliper includes a built-in adjustment structure, which is constructed using a built-in adjustment structure for a brake caliper.

[0020] In some embodiments of this utility model, the brake caliper further includes a master cylinder, the built-in adjustment structure being located inside the master cylinder, wherein the internal gear is embedded inside the master cylinder.

[0021] In some embodiments of this utility model, the brake caliper further includes a piston disposed in the master cylinder, a second seal disposed on the piston, and a second support gasket. A first sleeve is disposed between the opening of the master cylinder and the built-in adjustment structure, and a second sleeve is disposed between the zero and one openings of the master cylinder and the piston. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0023] in: Figure 1 This is a schematic diagram of the built-in adjustment structure of this utility model; Figure 2 This is an exploded view of the built-in adjustment structure of this utility model; Figure 3 This is a front view of the built-in adjustment structure of this utility model; Figure 4 This is a utility model Figure 3 A cross-sectional schematic diagram; Figure 5 This is a schematic diagram of the structure of the adjusting wheel of this utility model; Figure 6 This is a schematic diagram of the drive wheel structure of this utility model; Figure 7 This is a schematic diagram of the driven wheel of this utility model; Figure 8 This is a schematic diagram of the internal gear structure of this utility model; Figure 9 This is a schematic diagram of the structure of the brake slave cylinder of this utility model; Figure 10 This is a cross-sectional schematic diagram of the brake slave cylinder of this utility model; Figure 11 This is an exploded schematic diagram of the brake slave cylinder of this utility model; Figure 12 This is a schematic diagram of the structure of the existing brake cylinder of this utility model.

[0024] Label Explanation: 10. Adjusting wheel; 11. First mounting position; 12. Second mounting position; 13. Third mounting position; 14. First mounting hole; 15. Gear section; 20. Drive wheel; 21. First meshing tooth; 22. Helical tooth; 30. Driven wheel; 31. Second meshing tooth; 32. Second mounting hole; 40. First seal; 41. First support gasket; 50. Locking element; 51. Notch; 60. Adjusting screw; 70. Support seat; 71. Spring; 80. Internal gear; 90. Master cylinder; 91. First leather sleeve; 92. Second leather sleeve; 93. Piston; 94. Second seal; 95. Second support gasket. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0026] Please see Figures 1 to 8 This invention relates to a built-in adjustment structure for a brake caliper, comprising an adjustment wheel 10, a drive wheel 20, and a driven wheel 30. A first mounting position 11 and a second mounting position 12 are sequentially arranged on the outer surface of the adjustment wheel 10, wherein the first mounting position 11 is close to one end face of the adjustment wheel 10, and the second mounting position 12 is away from the end face relative to the first mounting position 11. The drive wheel 20 is rotatably mounted on the adjustment wheel 10 and located on the outer surface of the first mounting position 11. The driven wheel 30 is mounted on the adjustment wheel 10 and located on the outer surface of the second mounting position 12. The drive wheel 20 rotates on its own surface on the outer surface of the adjustment wheel 10, or the rotation of the drive wheel 20 drives the driven wheel 30 to rotate together with the adjustment wheel 10. This built-in adjustment structure for the brake caliper of this invention achieves built-in adjustment by setting the drive wheel 20 and the driven wheel 30 on the adjustment wheel 10, thereby improving service life.

[0027] Please refer to details. Figure 2 , 46, 8. The drive wheel 20 is an external gear, using an involute gear, and its outer surface is provided with helical teeth 22. The parameters of the involute gear are: pressure angle of 20°, module of 1, number of teeth of 24, rotation angle of 30°, and helix direction of right-hand. The built-in adjustment structure also includes an internal gear 80 located outside the drive wheel 20 and internally cooperating with the drive wheel 20. The tooth grooves inside the internal gear 80 are adapted to the helical teeth 22 on the outside of the drive wheel 20. When an external force is applied to the drive wheel 20, since the drive wheel 20 is located inside the internal gear 80, the drive wheel 20 rotates and moves under the action of the helical teeth 22. At the same time as the external force is applied to the drive wheel 20, it is also applied to the adjustment wheel 10. Initially, the adjustment wheel 10 moves in a straight line, and the drive wheel 20 rotates and moves (i.e., rotates forward). When the drive wheel 20 abuts against the driven wheel 30, the rotation and movement of the drive wheel 20 causes the driven wheel 30 and the adjustment wheel 10 to rotate and move together.

[0028] Please refer to details. Figure 1 , 4 5. A gear portion 15 is also provided on the outer side of the adjusting wheel 10 for manual adjustment. A third mounting position 13 is also provided on the outer surface of the adjusting wheel 10. The first mounting position 11, the second mounting position 12, and the third mounting position 13 are arranged sequentially. The built-in adjustment structure also includes a first seal 40, which is disposed on the adjusting wheel 10 and located on the outer surface of the third mounting position 13. The first seal 40 is a V-shaped sealing ring and is fitted onto the outer surface of the adjusting wheel 10. A first support gasket 41 is also provided inside the third mounting position 13 to abut against the first seal 40.

[0029] Please refer to details. Figure 2 , 6 A first meshing tooth 21 is provided on the end face of the drive wheel 20 near the driven wheel 30, and a second meshing tooth 31 is provided on the corresponding driven wheel 30. The first meshing tooth 21 and the second meshing tooth 31 mesh with each other. The driven wheel 30 is a bevel gear, that is, the end face of the driven wheel 30 near the drive wheel 20 is provided with a first meshing tooth 21, and a second meshing tooth 31 is provided on the corresponding end face of the driven wheel 30. Figure 7 The beveled teeth shown.

[0030] Please refer to details. Figure 2 , 34. The driven wheel 30 is mounted on the outer surface of the second mounting position 12 of the driven wheel 30 via a locking member 50, so that the adjusting wheel 10 rotates together when the driven wheel 30 rotates. Specifically, the locking member 50 is a pin. The driven wheel 30 is fixedly mounted on the outer surface of the adjusting wheel 10. A first mounting hole 14 is provided on the outer surface of the adjusting wheel 10 at the second mounting position 12. A second mounting hole 32 is provided on the driven wheel 30 corresponding to the first mounting hole 14. The pin is first inserted into the second mounting hole 32 and then into the first mounting hole 14 to ensure that the adjusting wheel 10 can rotate together when the driven wheel 30 rotates. The first mounting hole 14 and the second mounting hole 32 can be through holes. The locking element 50 is hollow inside, with a notch 51 provided along the central axis to connect the outside and inside of the locking element 50. After the locking element 50 is installed in the first mounting hole 14 and the second mounting hole 32, it will be squeezed, causing the notch 51 to shrink, so that the locking element 50 has an outward force and prevents the locking element 50 from loosening. To improve the stability of the connection, two locking elements 50 are provided, corresponding to the first mounting hole 14 and the second mounting hole 32, and the central axes of the two first mounting holes 14 are collinear.

[0031] Please refer to details. Figure 1 , 2 3. The built-in adjustment structure also includes adjustment screws 60 and support seats 70 located at both ends of the adjustment wheel 10. The adjustment screws 60 are threadedly connected to the adjustment wheel 10. A spring 71 is also provided between the support seat 70 and the drive wheel 20 to restrict the drive wheel 20 to the adjustment wheel 10. The support seat 70 is locked to one end of the adjustment wheel 10 by bolts. The end face of the adjustment wheel 10 is provided with an internal threaded hole for screwing with the bolts. Example 2

[0032] Please see Figures 1 to 11 This is a brake caliper as an embodiment 2 of the present invention, which includes a built-in adjustment structure. The built-in adjustment structure adopts the built-in adjustment structure of a brake caliper in embodiment 1.

[0033] Please refer to details. Figure 9-11 The brake caliper also includes a master cylinder 90, with a built-in adjustment structure located within it. An internal gear 80 is embedded within the master cylinder 90, and an oil inlet is provided on the master cylinder 90, connecting to its interior. The brake caliper also includes a piston 93 within the master cylinder 90, a second seal 94 on the piston 93, and a second support gasket 95. A first sleeve 91 is positioned between the opening of the master cylinder 90 and the built-in adjustment structure, and a second sleeve 92 is positioned between the opening of the master cylinder 90 and the piston 93. An oil storage space is formed between the inner side of the master cylinder 90, the built-in adjustment gear, and the piston 93. Oil enters through the inlet, applying oil pressure to the adjustment wheel 10 of the built-in adjustment structure and simultaneously to the end face of the piston 93, thereby achieving the braking effect of the brake caliper.

[0034] The main improvements of this utility model are as follows: First, the tablet press and tablet press screws are eliminated, and the installation positions of the tablet press screws are reduced outside the main cylinder by 90.

[0035] Secondly, an involute cylindrical gear (i.e., drive wheel 20 / external gear) is used as an automatic adjustment transmission. This external gear has a smooth meshing contact point trajectory, stable transmission ratio, strong wear resistance and load-bearing capacity, which can effectively reduce vibration and noise. At the same time, this structure has a small gear size and concentrated power transmission, making it suitable for small space scenarios within the main cylinder 90.

[0036] Third, the external gear section 15 is retained and can be manually adjusted according to driving habits.

[0037] The working principle of this new type of brake caliper is as follows: Similar to the braking principle of ordinary brake calipers, when the master cylinder transmits hydraulic braking force to the brake calipers, the adjusting wheel 10 assembly (i.e., the adjusting wheel 10 integrates the drive wheel 20, driven wheel 30, first seal 40, support seat 70 and spring 71) and piston 93 move outward under the pressure of brake fluid, pushing the brake shoes to achieve the braking effect. The function of the adjusting wheel 10 assembly in this invention is as follows: When the brake pads wear, the braking stroke of the adjusting wheel 10 increases, and the rotational stroke of the drive wheel 20 (i.e., the involute cylindrical gear) also increases. When the braking stroke of the adjusting wheel 10 reaches 1.2-1.7mm, the rotational stroke of the involute cylindrical gear (a 30° gear helix angle can increase the contact line length, improve the smoothness of transmission, and strengthen the gear strength and wear resistance) reaches 1.4-2mm. At this point, the driven wheel 30 (i.e., the bevel gear) next to the involute cylindrical external gear meets the conditions for rotation. The bevel gear rotates one tooth, driving the adjusting wheel 10 to rotate, which rotates the adjusting screw 60 outward, so that the brake pads are kept at an optimal braking distance from the wheel hub, thereby improving braking efficiency and safety.

[0038] In summary, the built-in adjustment structure of this utility model's brake caliper achieves built-in adjustment by setting a drive wheel and a driven wheel on the adjustment wheel, thereby improving service life. Specifically, it employs internal and external gears. The built-in adjustment assembly controls the rotation of the involute cylindrical gear through the movement of the brake caliper during braking. When the braking stroke reaches a certain distance, the rotation of the involute cylindrical gear drives the rotation of the bevel gear, causing the adjustment screw to rotate outward, keeping the brake pads at an optimal braking distance from the wheel hub. The external gear on the adjustment wheel is retained, allowing the driver to manually adjust according to driving habits; thus, it improves the braking performance of the brake caliper under harsh conditions; extends the service life of the brake caliper; upgrades the adjustment structure of the brake caliper, changing manual adjustment to a manual-automatic integrated adjustment to prevent adjustment failure; and reduces the product's installation space. The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A built-in adjustment structure for a brake caliper, characterized in that, include: Adjustment wheel (10), the outer surface of which is provided with a first mounting position (11) and a second mounting position (12) in sequence; A drive wheel (20) is rotatably mounted on an adjusting wheel (10) and located on the outer surface of the first mounting position (11); Driven wheel (30), the driven wheel (30) is disposed on the adjusting wheel (10) and located on the outer surface of the second mounting position (12); The drive wheel (20) rotates on the outer surface of the adjusting wheel (10) or the drive wheel (20) rotates, causing the driven wheel (30) and the adjusting wheel (10) to rotate together.

2. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The outer surface of the adjusting wheel (10) is also provided with a third mounting position (13). The first mounting position (11), the second mounting position (12) and the third mounting position (13) are arranged in sequence. The built-in adjustment structure also includes a first sealing element (40). The first sealing element (40) is arranged on the adjusting wheel (10) and located on the outer surface of the third mounting position (13).

3. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The drive wheel (20) has a first meshing tooth (21) on the end face near the driven wheel (30), and a second meshing tooth (31) is provided corresponding to the driven wheel (30). The first meshing tooth (21) and the second meshing tooth (31) mesh with each other.

4. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The driven wheel (30) is mounted on the outer surface of the second mounting position (12) of the driven wheel (30) by a locking member (50) so that the adjusting wheel (10) rotates together when the driven wheel (30) rotates.

5. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The built-in adjustment structure also includes adjustment screws (60) and support seats (70) at both ends of the adjustment wheel (10). The adjustment screws (60) are threadedly connected to the adjustment wheel (10). A spring (71) is also provided between the support seat (70) and the drive wheel (20) so that the drive wheel (20) abuts against the driven wheel (30).

6. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The drive wheel (20) is an external gear, which is an involute gear, and its outer surface is provided with helical teeth (22).

7. The built-in adjustment structure of a brake caliper according to claim 1, characterized in that, The built-in adjustment structure also includes an internal gear (80) located outside the drive wheel (20) and internally cooperating with the drive wheel (20).

8. A brake caliper, characterized in that, The brake caliper employs a built-in adjustment structure as described in any one of claims 1-7.

9. A brake caliper according to claim 8, characterized in that, The brake caliper also includes a master cylinder (90), the built-in adjustment structure being located within the master cylinder (90), wherein the internal gear (80) is embedded inside the master cylinder (90).

10. A brake caliper according to claim 9, characterized in that, The brake caliper also includes a piston (93) disposed in the master cylinder (90), a second seal (94) disposed on the piston (93), and a second support gasket (95). A first sleeve (91) is disposed between the opening of the master cylinder (90) and the built-in adjustment structure, and a second sleeve (92) is disposed between the opening of the master cylinder (90) and the piston (93).

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