Low-energy-consumption low-dragging EPB brake caliper

Abstract

The utility model relates to the technical field of EPB brake calipers, in particular to a low-energy-consumption low-dragging EPB brake caliper which comprises a brake caliper shell. A driving mechanism is arranged outside one side of the brake caliper shell; a movable groove is formed in the side, close to the driving mechanism, of the brake caliper shell, and a translation mechanism is arranged in the movable groove. The other side of the brake caliper shell is provided with a pair of pistons. The piston, the friction plate, the clamping groove, the clamping block and the inserting rod are used in cooperation, when the friction plate installed on the piston needs to be replaced, the inserting rod is pulled downwards from the position of the bottom groove, the end of the inserting rod is withdrawn from the penetrating groove in the end of the clamping block, and then the friction plate is pulled out towards the side away from the piston till the clamping block is withdrawn from the clamping groove. And after a new friction plate is replaced, the insertion rod on the friction plate is clamped with the clamping block on one side of the piston, so that the aim of conveniently and quickly replacing the friction plate is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of EPB brake calipers, in particular to a low-energy-consumption and low-drag EPB brake caliper. Background Art

[0002] The EPB brake caliper is a key component in an electronic parking brake system. It replaces the traditional handbrake and applies and releases braking force through an electric actuator or motor to stop the vehicle or release the parking state. The advantages of the EPB brake caliper include easy operation, small footprint, flexible design, and can be integrated with the vehicle's electronic stability control system and other safety systems to improve overall driving safety.

[0003] At present, EPB brake calipers usually use high-efficiency electric actuators or motors to reduce the energy consumption during braking, and use friction plates with low friction coefficients to reduce the contact area to reduce friction, so as to achieve the purpose of low energy consumption and low drag.

[0004] The friction plates of low-friction series wear relatively quickly, especially under frequent braking and high-pressure conditions, so the replacement frequency is high. However, the existing low-energy and low-drag EPB brake calipers are cumbersome to operate when replacing the friction plates, which is not conducive to quick replacement. Utility Model Content

[0005] The purpose of the utility model is to provide a low-energy-consumption and low-drag EPB brake caliper to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Low energy consumption and low drag EPB brake calipers, including

[0008] Brake caliper housing;

[0009] A driving mechanism is disposed outside one side of the brake caliper housing;

[0010] A movable groove is provided inside the brake caliper housing at one side close to the driving mechanism, and a translation mechanism is provided inside the movable groove;

[0011] A pair of pistons are respectively arranged on the other side of the brake caliper housing, and friction plates are arranged on the same side of the two pistons, and a quick-install mechanism is arranged between the friction plates and the pistons.

[0012] Preferably, the driving mechanism includes a reducer, which is arranged outside the brake caliper housing on a side away from the piston, and a motor is arranged below the reducer, and the output shaft of the motor is connected to the transmission shaft of the reducer;

[0013] Preferably, the translation mechanism includes a nut sleeve, the nut sleeve is movably installed inside the movable groove, and the end of the reducer away from the motor is connected to a screw rod through a transmission shaft, and the screw rod is threadedly connected to the nut sleeve;

[0014] Preferably, the translation mechanism further comprises a guide groove, the guide groove is provided on the inner wall of the movable groove on one side close to the piston, an elastic ring is provided on the side of the guide groove close to the piston, and guide blocks slidably connected to the guide groove are provided on both sides of the nut sleeve;

[0015] Preferably, one end of the nut sleeve away from the screw rod is connected to the right piston through a connecting piece, and the left piston is fixedly connected to the brake caliper housing;

[0016] Preferably, the quick-release mechanism includes a slot, which is arranged in the middle of a side of the friction plate close to the piston, a block is provided at one end of the piston close to the slot, a bottom slot is arranged on the inner side of the bottom end of the friction plate, and an insert rod is installed on the inner upper end of the bottom slot through a spring.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The low-energy consumption and low-drag EPB brake caliper is used in conjunction with a piston, a friction plate, a card slot, a card block and a plug rod. When the friction plate installed on the piston needs to be replaced, the plug rod is pulled down from the bottom groove, the end of the plug rod is withdrawn from the through groove at the end of the card block, and then the friction plate is pulled out to the side away from the piston until the card block is withdrawn from the card slot. After replacing the new friction plate, the plug rod on the friction plate can be connected to the card block on one side of the piston, thereby achieving the purpose of easy and quick replacement.

[0019] 2. The low-energy consumption and low-drag EPB brake caliper is used in conjunction with a guide groove, an elastic ring, a guide block and a nut sleeve. The device is provided with a guide groove inside the movable groove, and an elastic ring is provided inside the guide groove. When the nut sleeve is driven forward, the elastic ring is compressed. Since the displacement distance of the nut sleeve is usually very small during braking, when the screw rotates, the elastic ring can quickly control the nut sleeve to synchronously retreat, so that the friction plate is quickly detached from the surface of the brake disc to avoid drag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0022] Figure 3 For the utility model Figure 1 Enlarged schematic diagram of point B in the middle.

[0023] In the figure: 1. brake caliper housing; 2. movable groove; 3. piston; 4. friction plate; 5. reducer; 6. motor; 7. nut sleeve; 8. screw; 9. guide groove; 10. elastic ring; 11. guide block; 12. connecting piece; 13. slot; 14. block; 15. bottom groove; 16. spring; 17. plug rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-3 As shown, a technical solution provided by the utility model:

[0026] A low-energy consumption and low-drag EPB brake caliper comprises a brake caliper housing 1; a driving mechanism is arranged on the outside of one side of the brake caliper housing 1, the driving mechanism comprises a reducer 5, the reducer 5 is arranged on the outside of the side of the brake caliper housing 1 away from the piston 3, a motor 6 is arranged below the reducer 5, the output shaft of the motor 6 is connected to the transmission shaft of the reducer 5, a movable groove 2 is arranged inside the side of the brake caliper housing 1 close to the driving mechanism, a translation mechanism is arranged inside the movable groove 2, the translation mechanism comprises a nut sleeve 7, the nut sleeve 7 is movably installed inside the movable groove 2, the end of the reducer 5 away from the motor 6 is connected to a screw rod 8 through the transmission shaft, the screw rod 8 is threadedly connected to the nut sleeve 7, the end of the nut sleeve 7 away from the screw rod 8 is connected to the right piston 3 through a connecting piece 12, and the left piston 3 is fixedly connected to the brake caliper housing 1;

[0027] In this embodiment, when braking, the system controls the motor 6 to start, and the motor 6 drives the screw 8 to rotate after being decelerated by the reducer 5. When the screw 8 rotates, it drives the nut sleeve 7 to move forward in a straight line and pushes the piston 3 on the right side to move synchronously, thereby driving the friction plate 4 at the end of the piston 3 to rub the brake disc.

[0028] like Figure 2 As shown, a pair of pistons 3 are respectively arranged on the other side of the brake caliper housing 1, and friction plates 4 are arranged on the same side of the two pistons 3. A quick-install mechanism is arranged between the friction plates 4 and the pistons 3, and the quick-install mechanism includes a card slot 13, and the card slot 13 is arranged in the middle of the side of the friction plate 4 close to the piston 3. A card block 14 is arranged at one end of the piston 3 close to the card slot 13. A bottom groove 15 is arranged on the inner side of the bottom end of the friction plate 4, and an insert rod 17 is movably installed on the upper end of the bottom groove 15 through a spring 16;

[0029] In this embodiment, when the friction plate 4 installed on the piston 3 needs to be replaced, the insertion rod 17 is pulled down from the position of the bottom groove 15, the end of the insertion rod 17 is withdrawn from the through groove at the end of the block 14, and then the friction plate 4 is pulled out to the side away from the piston 3 until the block 14 is withdrawn from the groove 13. After the new friction plate 4 is replaced, it can be engaged with the block 14 on one side of the piston 3 through the insertion rod 17 on the friction plate 4, thereby achieving the purpose of easy and quick replacement.

[0030] like Figure 3 As shown, the translation mechanism also includes a guide groove 9, which is opened on the inner wall of the movable groove 2 near the piston 3. An elastic ring 10 is provided on the side of the guide groove 9 near the piston 3, and guide blocks 11 are provided on both sides of the nut sleeve 7 and are slidably connected to the guide groove 9.

[0031] In this embodiment, the device is provided with a guide groove 9 inside the movable groove 2, and an elastic ring 10 is provided inside the guide groove 9. When the nut sleeve 7 is driven forward, the elastic ring 10 is compressed. Since the displacement distance of the nut sleeve 7 is usually very small during braking, when the screw 8 rotates, the elastic ring 10 can quickly control the nut sleeve 7 to retreat synchronously, so that the friction plate 4 is quickly detached from the surface of the brake disc to avoid dragging.

[0032] Working principle: During braking, the system controls the motor 6 to start, and the motor 6 drives the screw 8 to rotate after being decelerated by the reducer 5. When the screw 8 rotates, it drives the nut sleeve 7 to move forward in a straight line, and pushes the piston 3 on the right to move synchronously, thereby driving the friction plate 4 at the end of the piston 3 to rub the brake disc. When the nut sleeve 7 is driven forward, the elastic ring 10 is compressed. Since the displacement distance of the nut sleeve 7 is usually very small during braking, when the screw 8 rotates, the elastic ring 10 can quickly control the nut sleeve 7 to retreat synchronously, so that the friction plate 4 is quickly separated from the surface of the brake disc. When the friction plate 4 installed on the piston 3 needs to be replaced, the insertion rod 17 is pulled down from the position of the bottom groove 15, and the end of the insertion rod 17 is withdrawn from the through groove at the end of the block 14, and then the friction plate 4 is pulled out to the side away from the piston 3 until the block 14 is withdrawn from the slot 13. After replacing the new friction plate 4, the insertion rod 17 on the friction plate 4 is engaged with the block 14 on one side of the piston 3.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Low energy consumption and low drag EPB brake caliper, characterized by: include Brake caliper housing (1); A driving mechanism is provided on the outside of one side of the brake caliper housing (1); A movable groove (2) is provided inside the brake caliper housing (1) on one side close to the driving mechanism, and a translation mechanism is provided inside the movable groove (2); A pair of pistons (3) are respectively arranged on the other side of the brake caliper housing (1), friction plates (4) are arranged on the same side of the two pistons (3), and a quick-installation mechanism is arranged between the friction plates (4) and the pistons (3); The driving mechanism comprises a reducer (5), the reducer (5) being arranged outside a side of the brake caliper housing (1) away from the piston (3), a motor (6) being arranged below the reducer (5), and an output shaft of the motor (6) being connected to a transmission shaft of the reducer (5); The translation mechanism comprises a nut sleeve (7), the nut sleeve (7) being movably mounted inside the movable groove (2), and the end of the reducer (5) away from the motor (6) being connected to a screw rod (8) via a transmission shaft, and the screw rod (8) being threadedly connected to the nut sleeve (7); The translation mechanism further comprises a guide groove (9), the guide groove (9) being formed on an inner wall of the movable groove (2) close to the piston (3), an elastic ring (10) being provided on the side of the guide groove (9) close to the piston (3), and guide blocks (11) being slidably connected to the guide groove (9) being provided on both sides of the nut sleeve (7); The quick-install mechanism comprises a slot (13), the slot (13) being arranged in the middle of a side of the friction plate (4) close to the piston (3), a block (14) being arranged at one end of the piston (3) close to the slot (13), a bottom slot (15) being arranged on the inner side of the bottom end of the friction plate (4), and an insert rod (17) being movably mounted on the inner upper end of the bottom slot (15) via a spring (16).

2. The low energy consumption and low drag EPB brake caliper according to claim 1, characterized in that: One end of the nut sleeve (7) away from the screw rod (8) is connected to the right piston (3) via a connecting piece (12), and the left piston (3) is fixedly connected to the brake caliper housing (1).

Images