CN116292681A - Caliper body and fixed caliper with parking brake function and vehicle - Google Patents

Abstract

The invention relates to the field of brakes, and discloses a caliper body, a fixed caliper with a parking brake function, and a vehicle. A braking area (1) for braking is formed in the caliper body, and a caliper body on the outer part of the braking area (1) The caliper body 1 (2) and the inner part of the caliper body are caliper body 2, and the end faces of the caliper body 1 (2) and the caliper body 2 (3) on one side of the braking zone (1) are provided with brake piston chambers ( 4), the brake piston cavity (4) of the first caliper (2) and the brake piston cavity (4) of the second caliper (3) are connected through the oil circuit; the first (2) of the caliper is also provided with a parking cavity (5), the axis of the parking chamber (5) is arranged parallel to the axial direction of the brake piston chamber (4), the parking chamber (5) is used to install the parking brake device, the parking chamber (5) and the caliper One (2) of the brake piston chambers (4) are disconnected. The caliper has the advantages of compact structure, stable braking, large braking force and the like.

Description

Caliper body and fixed caliper with parking brake function and vehicle

technical field

The invention relates to the field of brakes, in particular to a caliper body, a fixed caliper with a parking brake function and a vehicle.

Background technique

In the prior art, the Chinese patent CN201610400700.9 generally requires the installation of EPB (ie, parking brake) on the rear wheels, so floating calipers are generally used. Since vehicles generally require brake calipers, especially some performance models, they need to be installed with fixed brake calipers. Calipers are used to improve the braking performance. However, in the prior art, these two calipers are generally equipped on the vehicle and cannot be integrated. This is because the cost of installing EPB on the fixed caliper is high, the return position is uneven, and the installation space Ask for advanced questions.

Contents of the invention

Aiming at the shortcomings in the prior art, the invention provides a fixed caliper with a parking brake function.

In order to solve the above technical problems, the present invention is solved through the following technical solutions:

A caliper body, in which a braking zone for braking is formed, the caliper body on the outer part of the braking zone is caliper body 1, and the caliper body on the inner part is caliper body 2, and the caliper body 1 and caliper body 2 are located in the braking zone A brake piston cavity is provided on the end surface of one side, and the brake piston cavity of the caliper body 1 and the brake piston cavity of the caliper body 2 are connected through an oil circuit;

The first caliper body is also provided with a parking chamber, the axis of the parking chamber is parallel to the axial direction of the brake piston chamber, and the parking chamber is used to install the parking brake device. The parking chamber and the brake piston of the first caliper body Cavities are disconnected. This clamp body structure can simultaneously provide the functions of fixed clamp and floating clamp.

Preferably, the parking cavity is a through channel, and the outer end surface of the pliers body 1 is provided with a fixed cavity for installing the guide pin, and the axis of the fixed cavity is arranged parallel to the axis of the parking cavity.

Preferably, there are at least two fixed cavities, which are symmetrically distributed around the parking cavity.

Preferably, the above-mentioned caliper body is included, the parking chamber is a through passage, and the outer end surface of the pliers body 1 is provided with a fixed chamber for installing guide pins, the axis of the fixed chamber is arranged parallel to the axis of the parking chamber, and the parking mechanism The actuating device includes an execution part and a parking tong body, and a guide ear is provided on the outer end of the parking tong body; it also includes a guide pin, which is sequentially inserted into the guide hole in the guide ear and the fixed cavity of the first tong body , the guide lug of the parking caliper body moves axially along the guide pin;

The body of the parking caliper traverses the body of the caliper axially, and the other end of the body of the caliper extends to the lower end of the inner brake pad. The body of the parking caliper can drive the inner brake pad to move axially; Push the outer brake pads to move towards the brake disc, then drive the body of the parking caliper to move relative to each other, and drive the inner brake pads to move towards the brake disc to realize parking brake.

As a preference, a notch is provided on the end surface of the braking area side of the caliper body 2, and the notch is located on the back side of the caliper, and the parking caliper body includes a flashboard, which is placed in the notch, and the flashboard can act on the brake pad.

Preferably, the brake caliper body is an integrated caliper body, the number of brake piston chambers on the caliper body 1 and the caliper body 2 is two, and the parking chamber is located between the two brake piston chambers of the caliper body 1. between.

Preferably, the execution unit includes an MGU and a parking executive assembly installed in the parking caliper, the MGU includes a radially arranged motor part and a transmission assembly, and the transmission assembly can drive the axial movement of the piston in the parking actuator assembly to realize the parking system. movement and parking release.

Preferably, the parking tong body includes a main tong body and an auxiliary tong body for being installed in the notch, and the main tong body and the auxiliary tong body are of a split structure.

Brakes, fitted with the aforementioned fixed calipers with parking brake function.

The present invention has the following significant technical effects due to the adoption of the above technical scheme:

This solution designs the clamp body structure of the fixed clamp so that the fixed clamp can be used in conjunction with the EPB, and at the same time saves the bracket required by the floating clamp, which makes the installation more convenient and the structure more compact. The horizontal mgu can save the cost of the caliper The overall axial space facilitates the overall layout of the vehicle. Moreover, the epb of this kind of structure also has the advantages of stable support, stable braking, convenient installation and high strength of the caliper body.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the brake.

Fig. 2 is a schematic diagram of the structure of the forceps.

Fig. 3 is a schematic structural view of the parking tong body.

Fig. 4 is a schematic diagram of the structure of the forceps.

The technical names of reference signs in the figure are: 1—brake area, 2—caliper body 1, 3—caliper body 2, 4—brake piston cavity, 5—parking cavity, 6—fixed cavity, 7—executive part , 8—caliper body, 9—guide ear, 10—guide pin, 11—notch, 12—board, 13—main pliers, 14—auxiliary pliers.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1

A caliper body, in which a brake zone 1 for braking is formed, the caliper body on the outer part of the brake zone 1 is caliper body 1, the caliper body on the inner part is caliper body 2, caliper body 1 2 and caliper body 2 3. A brake piston chamber 4 is provided on the end face of one side of the braking area 1. The brake piston chamber 4 of the caliper body 1 2 and the brake piston chamber 4 of the caliper body 2 3 are connected through the oil circuit; the caliper body 1 2 Also be provided with parking chamber 5 on the top, the axis of parking chamber 5 is arranged in parallel with the axial direction of brake piston chamber 4, and parking chamber 5 is used for installing parking braking device, and parking chamber 5 and caliper one 2 The brake piston cavity 4 is not connected. This clamp body structure can simultaneously provide the functions of fixed clamp and floating clamp.

The caliper body in this embodiment has an integrated structure, and the internal brake piston chamber 4 is connected through the built-in oil passage. When braking, the high-pressure oil fluid pushes the inner brake pad and the outer brake pad through the piston to perform braking.

In order to ensure the stability of the floating caliper braking, the parking chamber 5 is a through passage, and the outer end surface of the caliper body 2 is provided with a fixed chamber 6 for installing the guide pin 10. The axis of the fixed chamber 6 is aligned with the parking chamber. The axes of 5 are arranged in parallel. The piston assembly of Epb is installed in the fixed cavity 6 .

The traditional solution needs to install a fixing device on the fixed tong to install a separate bracket to fix the floating tong. This solution improves the design of the floating tong body so that it can be directly installed on the fixed tong. Specifically, the number of the above-mentioned fixed chambers 6 is at least two, symmetrically distributed around the parking chamber 5, and then the guide pin 10 is installed in the fixed chamber 6, and the parking brake caliper body is installed on the guide pin 10, not only The floating caliper plays a role of fixing, and can ensure that the parking caliper can slide relative to each other when braking.

Example 2

A fixed caliper, comprising the above-mentioned caliper body, the parking cavity 5 is a through passage, the outer end surface of the caliper body 2 is provided with a fixed cavity 6 for installing guide pins 10, the axis of the fixed cavity 6 is aligned with the parking cavity The axes of 5 are arranged in parallel, and the parking brake device includes an executive part 7 and a parking caliper body 8, and the outer end of the parking caliper body 8 is provided with a guide ear 9; it also includes a guide pin 10, which is sequentially inserted into the In the guide hole in the guide ear 9 and the fixed cavity 6 of the pliers body 1 2, the parking pliers body 8 passenger channel guide ear 9 moves axially along the guide pin 10;

The parking caliper body part 8 traverses the caliper body along the axial direction, and the other end of the parking caliper body part 8 extends to the lower end of the inner brake pad, and the parking caliper body part 8 can drive the inner brake pad to move axially; When the actuator 7 pushes the outer brake pads to move towards the brake disc, then drives the parking caliper body 8 to move relative to each other, and drives the inner brake pads to move towards the brake disc to realize the parking brake.

In this embodiment, a notch 11 is provided on the end surface of the braking zone 1 side of the caliper body 2 3, and the notch 11 is located on the back side of the tongs. Inside, the insert plate 12 can act on the brake pads. The design of the notch 11 will not cause great damage to the overall strength of the brake caliper body, and at the same time, it can leave enough space for the insert plate 12, and the overall appearance is better.

In this embodiment, the brake caliper body is an integrated caliper body, and there are two brake piston cavities on the first caliper body 2 and the second caliper body 3. The parking chamber 5 is located at the first caliper body 2 Between the two brake piston chambers 4.

In this embodiment, the actuator 7 includes an MGU and a parking executive assembly installed in the parking tongs. The MGU includes a radially arranged motor part and a transmission assembly. The transmission assembly can drive the piston in the parking actuator to move axially to achieve Parking brake and parking release.

The parking tong body includes a main tong body 13 and an auxiliary tong body 14 for being installed in the notch 11, and the main tong body 13 and the auxiliary tong body 14 are split structures.

The working process of the caliper is as follows:

When braking, the high-pressure oil enters the brake chamber through the oil inlet, and then reaches each chamber of the caliper 1 2 and caliper 2 3 through the internal oil circuit of the caliper body, and then is applied to the piston to push the brake Plate one and brake plate two move towards the brake disc to achieve braking.

During parking braking, the EPB executive part pushes the parking piston to move with 7 points to drive the outer friction plate to brake. After the outer friction plate contacts the brake disc, the parking caliper body moves relatively, driving the inner friction plate to brake. Thereby complete the parking brake, when the parking is released, the motor reverses, so that the inner friction plate and the outer friction plate are separated from the contact with the brake disc, and the parking brake is released.

This solution designs the clamp body structure of the fixed clamp so that the fixed clamp can be used in conjunction with the EPB, and at the same time saves the bracket required by the floating clamp, which makes the installation more convenient and the structure more compact. The horizontal mgu can save the cost of the caliper The overall axial space facilitates the overall layout of the vehicle. Moreover, the epb of this kind of structure also has the advantages of stable support, stable braking, convenient installation and high strength of the caliper body.

Example 3

The difference from Embodiment 1 is that the parking pliers include a housing 15 for installing the piston structure and a caliper arm 16, one end of the caliper arm 16 is connected to the back side of the housing 15, and the caliper arm 16 The other end of the pincer body is connected with the plugboard 12, and the guide ear 9 is arranged at the junction of the pliers body arm 16 and the housing 15, and the guide ears 9 are distributed on both sides of the shell; The outer side of the body arm 16 is bent and provided with reinforcing ribs 18 .

Example 3

A vehicle equipped with the brakes described above.

Claims (10)

1. The caliper body is characterized in that: a brake zone (1) for braking is formed in the caliper body, the caliper body of the outer part of the brake zone (1) is a caliper body one (2), and the caliper body of the inner part is a caliper body Two, the end faces of caliper body one (2) and caliper body two (3) on one side of the braking zone (1) are provided with brake piston chambers (4), and the brake piston chambers of caliper body one (2) ( 4) It communicates with the brake piston cavity (4) of the second caliper body (3) through an oil circuit; Caliper body one (2) is also provided with a parking chamber (5), the axis of the parking chamber (5) is arranged parallel to the axial direction of the brake piston chamber (4), and the parking chamber (5) is used for installing the parking chamber. In the braking device, the parking cavity (5) is not communicated with the brake piston cavity (4) of the caliper body one (2). 2. The pliers body according to claim 1, characterized in that: the parking cavity (5) is a through passage, and the outer end surface of the pliers body one (2) is provided with a fixed cavity ( 6), the axis of the fixed cavity (6) is arranged parallel to the axis of the parking cavity (5). 3. The pliers body according to claim 2, characterized in that: there are at least two fixed cavities (6), which are symmetrically distributed around the parking cavity (5). 4. A fixed caliper with a parking brake function, characterized in that: it comprises the caliper body according to any one of claims 1 to 3, the parking chamber (5) is a through passage, and the outer side of the caliper body one (2) A fixed cavity (6) for installing guide pins (10) is provided on the end face, the axis of the fixed cavity (6) is arranged parallel to the axis of the parking cavity (5), and the parking brake device includes an actuator (7) and a parking The car caliper body (8), the outer end of the parking caliper body (8) is provided with guide ears (9); it also includes guide pins (10), and the guide pins (10) are sequentially inserted into the guide ears (9) In the guide hole of the guide hole and the fixed cavity (6) of the caliper body one (2), the guide ear (9) of the parking pliers body (8) passenger channel moves axially along the guide pin (10); The parking caliper body part (8) traverses the caliper body along the axial direction, and the other end of the parking caliper body part (8) extends to the lower end of the inner brake pad, and the parking caliper body part (8) can drive the inner brake pad axially movement; during parking braking, the executive part (7) pushes the outer brake block to move toward the brake disc, and then drives the parking caliper body (8) to move relative to the brake disc, and drives the inner brake pad to move toward the brake disc, realizing Parking brake. 5. The fixed caliper with parking brake function according to claim 4, characterized in that: the end surface of the brake area (1) side of the caliper body two (3) is provided with a notch (11), the notch (11) is located at the back side of the caliper, and the parking caliper body (8) includes a flashboard (12). The flashboard (12) is placed in the notch (11), and the flashboard (12) can act on the brake pad. 6. The fixed caliper with parking brake function according to claim 4, characterized in that: the brake caliper body is an integrated caliper body, and the brake caliper body on the first (2) and second (3) caliper body The number of moving piston chambers (4) is two, and the parking chamber (5) is located between the two brake piston chambers (4) of the caliper body one (2). 7. The fixed caliper with parking brake function according to claim 4, characterized in that: the executive part (7) includes an MGU and a parking executive assembly installed in the parking caliper body, and the MGU includes radially arranged The motor part, the transmission assembly, and the transmission assembly can drive the axial movement of the piston in the parking actuator assembly to realize parking braking and parking release. 8. The fixed caliper with parking brake function according to claim 5, characterized in that: the parking caliper body includes a main caliper body (13) and an auxiliary caliper body ( 14), the main clamp body (13) and the auxiliary clamp body (14) are split structures. 9. The fixed caliper with parking brake function according to claim 5, characterized in that: the parking caliper comprises a housing (15) for installing the piston structure and a caliper arm (16), the caliper One end of the arm (16) is connected to the pliers back side of the housing (15), the other end of the pliers arm (16) is connected to the flashboard (12), and the guide ear (9) is arranged on the pliers arm (16), the shell body (15), the guide ears (9) are distributed on both sides of the housing; the middle part of the pliers body arm (16) is provided with a weight reducing port (17), and the outer side of the pliers body arm (16) is bent out of it. Ribs (18) are provided. 10. The vehicle, characterized in that it is equipped with the fixed caliper with parking brake function according to any one of claims 4 to 9.

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