Integrated EPB parking fixing calipers

Abstract

The utility model discloses an integrated EPB parking fixed caliper, which relates to the technical field of auto spare parts, and comprises a fixed caliper and a parking caliper, the fixed caliper is connected with the parking caliper through a sliding shaft, the outer side of the parking caliper is provided with a mounting seat, one end of the mounting seat deviating from the parking caliper is provided with a motor, the parking caliper is internally provided with a screw rod, and the screw rod is connected with the fixed caliper through a sliding shaft. The power output end of the motor is in meshed connection with the screw through a spline, the outer wall of the screw is in threaded connection with a threaded sleeve, the outer side of the threaded sleeve is sleeved with a parking piston, an inner friction plate is installed at the end, away from the motor, of the parking piston, and an outer friction plate is installed at the end, close to the inner friction plate, in the fixing clamp. According to the utility model, the fixed caliper, the parking caliper and the sliding shaft are arranged in a matched manner, the fixed caliper and the parking caliper are integrated, the waste of space and weight is reduced, the parking caliper is supported by the fixed caliper to integrate parking braking and service braking, and meanwhile, the parking caliper is integrally forged, so that the rigidity can be improved, and the deformation can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an integrated EPB parking fixed caliper. Background Art

[0002] The parking brake system refers to a technology that integrates temporary braking during driving and long-term braking after parking, and realizes parking braking by electronic control. The control method has changed from the previous mechanical handbrake lever to an electronic button. There is no need to keep your foot on the brake or use the handbrake during parking braking. The car is always in a stationary state. The brake caliper is a core component of the parking brake system. By adding hydraulic pressure to the pistons on both sides, the pistons push the friction blocks on both sides, clamping the brake disc and generating friction, thereby stopping the wheels from turning.

[0003] In the process of implementing the utility model, the inventors found that there are at least the following problems in the technology: the existing rear wheel design uses a fixed caliper, which generally requires an additional EPB floating parking caliper, which increases the complexity of the structure, takes up a lot of rear wheel space, and also adds unnecessary weight. Summary of the invention

[0004] In order to improve the above-mentioned existing rear wheel design, a fixed caliper is used, and generally an additional EPB floating parking caliper is required, which increases the structural complexity, occupies a lot of rear wheel space, and also adds unnecessary weight. The utility model provides an integrated EPB parking fixed caliper.

[0005] The utility model provides an integrated EPB parking fixed caliper, which adopts the following technical solutions:

[0006] The integrated EPB parking fixed caliper comprises a fixed caliper and a parking caliper, wherein the fixed caliper is connected to the parking caliper via a sliding shaft, a mounting seat is arranged on the outer side of the parking caliper, a motor is mounted on the end of the mounting seat facing away from the parking caliper, a screw is mounted inside the parking caliper, a power output end of the motor is connected to the screw via a spline meshing connection, a screw sleeve is threaded on the outer wall of the screw, a parking piston is sleeved on the outer side of the screw sleeve, an inner friction plate is mounted on the end of the parking piston away from the motor, and an outer friction plate is mounted on the end of the fixed caliper close to the inner friction plate.

[0007] By adopting the above technical scheme, the fixed caliper and the parking caliper are integrated into one through the sliding shaft, thereby reducing the waste of space and weight. The parking caliper uses the fixed caliper as a support to integrate the parking brake and the driving brake. At the same time, the parking caliper adopts an integrated forging, which can improve the rigidity and reduce the deformation. When the parking is working, the motor is energized and rotates. When the motor rotates, it drives the screw to rotate through the spline engagement. The rotation of the screw drives the screw sleeve to move. Through the cooperation of the screw sleeve and the screw, the rotational motion is converted into linear motion to push the parking piston forward. The parking piston then pushes the inner friction plate forward. After the inner friction plate is pressed against the brake disc, due to the action of the thrust, the parking caliper will move backward, and at the same time drive the outer friction plate to press against the brake disc. Under the action of the thrust, the inner friction plate and the outer friction plate will clamp the brake disc, thereby generating braking force.

[0008] Optionally, two groups of sliding shafts are respectively fixedly mounted at two ends of the top of the fixed caliper, shaft holes matching the sliding shafts are opened on both sides of the parking caliper, and rubber sleeves are arranged between the two groups of sliding shafts and the shaft holes.

[0009] By adopting the above technical solution, the sliding shaft can be protected and a certain shock absorbing effect can also be exerted on the parking caliper.

[0010] Optionally, the mounting seat and the parking caliper are connected via screws.

[0011] By adopting the above technical solution, it is convenient to replace different mounting seats and the transmission structure for driving the screw to rotate.

[0012] Optionally, a plane bearing is provided on one end of the outer side of the screw rod close to the motor.

[0013] By adopting the above technical solution, the screw rod can be supported so that the screw rod can rotate more smoothly.

[0014] Optionally, a rectangular sealing ring is provided between the parking piston and the parking caliper.

[0015] By adopting the above technical solution, the parking piston can be automatically returned.

[0016] Optionally, a piston hole is opened inside the fixed caliper, a first dust cover is installed at one end of the piston hole close to the inner friction plate, a second dust cover is installed at one end of the piston hole away from the inner friction plate, and the second dust cover is located at the connection between the fixed caliper and the parking caliper.

[0017] By adopting the above technical solution, foreign matter can be effectively prevented from penetrating into the interior of the fixed caliper and the parking caliper.

[0018] Optionally, the parking caliper is an integrated forged floating caliper.

[0019] By adopting the above technical solution, the rigidity of the parking caliper can be improved and the deformation can be reduced.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] By coordinating the fixed caliper, the parking caliper and the sliding shaft, the fixed caliper and the parking caliper are integrated into one, reducing the waste of space and weight. The parking caliper uses the fixed caliper as a support to integrate the parking brake and the service brake. At the same time, the parking caliper adopts one-piece forging, which can improve rigidity and reduce deformation.

[0022] By using the first dust cover and the mounting seat for protection between the fixed caliper and the parking caliper, the infiltration of foreign matter can be effectively prevented. At the same time, the parking caliper and the mounting seat are connected by screws, which facilitates the replacement of different mounting seats and screw transmission structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a front view structural schematic diagram of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the parking caliper structure of the utility model;

[0028] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0029] In the figure: 1. fixing caliper; 2. parking caliper; 3. sliding shaft; 4. rubber sleeve; 5. motor; 6. screw; 7. first dust cover; 8. rectangular sealing ring; 9. parking piston; 10. second dust cover; 11. mounting seat; 12. screw sleeve; 13. screw; 14. plane bearing; 15. inner friction plate; 16. outer friction plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 The utility model is described in further detail.

[0031] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: an integrated EPB parking fixed caliper, comprising a fixed caliper 1 and a parking caliper 2, wherein the fixed caliper 1 is connected to the parking caliper 2 via a sliding shaft 3, two sets of sliding shafts 3 are respectively fixedly mounted at the two ends of the top of the fixed caliper 1, and both sides of the parking caliper 2 are provided with shaft holes that match the sliding shafts 3, and rubber sleeves 4 are arranged between the two sets of sliding shafts 3 and the shaft holes. It is used to protect the sliding shaft 3 and also has a certain shock absorbing effect on the parking caliper 2. The parking caliper 2 is an integrated forged floating caliper. It can improve the rigidity of the parking caliper 2 and reduce the deformation.

[0032] Please refer to the attached figure in the instruction manual Figure 3 and Figure 4 A mounting seat 11 is arranged on the outside of the parking caliper 2, and the mounting seat 11 is connected to the parking caliper 2 by screws 6. It is convenient to replace different mounting seats 11 and the transmission structure for driving the screw rod 13 to rotate.

[0033] Please refer to the attached figure in the instruction manual Figure 4 and Figure 5 The motor 5 is installed at one end of the mounting seat 11 away from the parking caliper 2, a screw 13 is installed inside the parking caliper 2, and a plane bearing 14 is provided at one end of the outer side of the screw 13 close to the motor 5. Thus, the screw 13 can be supported, so that the screw 13 can rotate more stably.

[0034] Please refer to the attached figure in the instruction manual Figure 4 and Figure 5 The power output end of the motor 5 is connected to the screw rod 13 through a spline meshing connection, the outer wall of the screw rod 13 is threaded with a screw sleeve 12, the outer side of the screw sleeve 12 is sleeved with a parking piston 9, and a rectangular sealing ring 8 is provided between the parking piston 9 and the parking caliper 2. It is used for the automatic return of the parking piston 9.

[0035] Please refer to the attached figure in the instruction manual Figure 4 and Figure 5 The end of the parking piston 9 away from the motor 5 is equipped with an inner friction plate 15, the end of the fixed caliper 1 near the inner friction plate 15 is equipped with an outer friction plate 16, a piston hole is opened inside the fixed caliper 1, the end of the piston hole near the inner friction plate 15 is equipped with a first dust cover 7, the end of the piston hole away from the inner friction plate 15 is equipped with a second dust cover 10, and the second dust cover 10 is located at the connection between the fixed caliper 1 and the parking caliper 2. This effectively prevents foreign matter from penetrating into the fixed caliper 1 and the parking caliper 2.

[0036] Working principle: the fixed caliper 1 and the parking caliper 2 are integrated into one by the sliding shaft 3 to reduce the waste of space and weight. The parking caliper 2 uses the fixed caliper 1 as a support to integrate the parking brake and the driving brake. At the same time, the parking caliper 2 adopts an integrated forging, which can improve the rigidity and reduce the deformation. When the parking is working, the motor 5 is energized and rotated. When the motor 5 rotates, the screw 13 is driven to rotate through the spline engagement. The rotation of the screw 13 drives the screw sleeve 12 to move. Through the cooperation of the screw sleeve 12 and the screw 13, the rotational motion is converted into a linear motion to push the parking piston 9 forward. The parking piston 9 then pushes the inner friction plate 15 forward. After the inner friction plate 15 is pressed against the brake disc, due to the action of the thrust, the parking caliper 2 will move backward, and at the same time drive the outer friction plate 16 to press against the brake disc. Under the action of the thrust, the inner friction plate 15 and the outer friction plate 16 will clamp the brake disc, thereby generating a braking force.

[0037] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An integrated EPB parking fixed caliper, comprising a fixed caliper (1) and a parking caliper (2), characterized in that: The fixed caliper (1) is connected to the parking caliper (2) via a sliding shaft (3); a mounting seat (11) is arranged on the outside of the parking caliper (2); a motor (5) is mounted on the end of the mounting seat (11) facing away from the parking caliper (2); a screw rod (13) is mounted inside the parking caliper (2); a power output end of the motor (5) is connected to the screw rod (13) via a spline meshing connection; a screw sleeve (12) is screwed on the outer wall of the screw rod (13); a parking piston (9) is sleeved on the outer side of the screw sleeve (12); an inner friction plate (15) is mounted on the end of the parking piston (9) away from the motor (5); and an outer friction plate (16) is mounted on the end of the fixed caliper (1) close to the inner friction plate (15).

2. The integrated EPB parking caliper according to claim 1, characterized in that: The two groups of sliding shafts (3) are respectively fixedly mounted at the two ends of the top of the fixed caliper (1), and shaft holes matching the sliding shafts (3) are provided on both sides of the parking caliper (2), and rubber sleeves (4) are provided between the two groups of sliding shafts (3) and the shaft holes.

3. The integrated EPB parking caliper according to claim 1, characterized in that: The mounting seat (11) and the parking caliper (2) are connected via screws (6).

4. The integrated EPB parking caliper according to claim 1, characterized in that: A plane bearing (14) is provided at one end of the outer side of the screw rod (13) close to the motor (5).

5. The integrated EPB parking caliper according to claim 1, characterized in that: A rectangular sealing ring (8) is provided between the parking piston (9) and the parking caliper (2).

6. The integrated EPB parking caliper according to claim 1, characterized in that: A piston hole is provided inside the fixed caliper (1), a first dust cover (7) is installed at one end of the piston hole close to the inner friction plate (15), and a second dust cover (10) is installed at one end of the piston hole away from the inner friction plate (15), and the second dust cover (10) is located at the connection between the fixed caliper (1) and the parking caliper (2).

7. The integrated EPB parking caliper according to claim 1, characterized in that: The parking caliper (2) is an integrated forged floating caliper.

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