CN221233719U

CN221233719U - Parking brake assembly

Info

Publication number: CN221233719U
Application number: CN202420107300.9U
Authority: CN
Inventors: 许章立
Original assignee: Chengdu Chuanghang Electromechanical Co ltd
Current assignee: Chengdu Chuanghang Electromechanical Co ltd
Priority date: 2024-01-15
Filing date: 2024-01-15
Publication date: 2024-06-28
Anticipated expiration: 2034-01-15

Abstract

The utility model relates to the technical field of braking devices, and provides a parking brake assembly, which comprises a shell, a coil assembly and a rotor assembly, wherein the rotor assembly is arranged in the coil assembly, and an annular tooth structure is arranged on one side end surface of the rotor assembly; the rotor assembly is connected with the mandrel in a sliding manner, and synchronously rotates along with the mandrel; the mandrel penetrates through the middle part of the flange fluted disc; so that energizing the coil assembly attracts the rotor assembly toward the flanged disc engagement contact brake. The utility model has the advantages of larger braking moment, rapid braking reaction and good heat dissipation performance.

Description

Parking brake assembly

Technical Field

The utility model relates to the technical field of braking devices, in particular to a parking brake assembly.

Background

The parking brake is a brake device arranged on a motor vehicle and is used for stabilizing the vehicle when the vehicle is parked, and avoiding accidents caused by sliding the vehicle when the vehicle is parked on a slope road surface. The parking brake is typically mounted on a drive shaft or rear wheel of the vehicle by manual operation and is mechanically or electronically connected to the vehicle's brake system.

Conventional parking brakes generally adopt a mechanical working principle, and a brake caliper of a rear wheel is linked through a steel wire or a similar mechanism, and is pulled up to press a brake pad, so that the parking function is realized in a friction contact mode. In particular, the wire or similar mechanism transmits force to the brake calipers of the rear wheels, which clamp the brake pads, thereby stopping the vehicle in place, with relatively little braking torque, a large amount of heat generation, and a certain braking reaction time.

Disclosure of utility model

The utility model aims to provide a parking brake assembly which has larger braking moment, rapid braking and better heat dissipation.

The embodiment of the utility model is realized by the following technical scheme: the parking brake assembly comprises a shell, a coil assembly and a rotor assembly, wherein the rotor assembly is arranged in the coil assembly, and an annular tooth structure is arranged on one side end surface of the rotor assembly; the rotor assembly is connected with the mandrel in a sliding manner, and synchronously rotates along with the mandrel; the mandrel penetrates through the middle part of the flange fluted disc; so that energizing the coil assembly attracts the rotor assembly toward the flanged disc engagement contact brake.

Preferably, the rotor assembly comprises an end face tooth sleeve and a movable iron core, wherein the end face tooth sleeve is connected to the mandrel in a sliding mode, and one end of the movable iron core is fixedly connected with the end face tooth sleeve.

Preferably, the mandrel is provided with at least two groups of positioning ring grooves, the other end of the movable iron core is close to the inner ring side of the mandrel, an elastic bead assembly is mounted on the inner ring side of the mandrel, the elastic bead assembly is clamped in the positioning ring grooves, the movable iron core moves along the axial direction, and the elastic bead assembly is switched between the positioning ring grooves.

Preferably, the elastic bead assembly comprises a mounting sleeve, a spring and a positioning bead, wherein one end of the mounting sleeve is connected with the inner ring side of the movable iron core, the spring is arranged in the mounting sleeve, and the positioning bead extrudes the spring to be embedded into the mounting sleeve; the positioning beads are clamped into the positioning ring grooves.

Preferably, the device further comprises a proximity switch, wherein the front end of the proximity switch is close to one side end face of the movable iron core.

Preferably, the device further comprises an end plate and an end cover, wherein the end plate and the end cover are respectively arranged at two ends of the shell, the end cover is positioned at one side close to the elastic bead assembly, and the end plate is positioned at one side close to the movable iron core; the proximity switch extends into the housing through the end cap.

Preferably, the end cover is provided with a ventilation valve.

Preferably, the coil assembly comprises a first coil set and a second coil set, and the first coil set and the second coil set are arranged side by side in parallel.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects: according to the utility model, the coil assembly is electrified to attract the rotor assembly to move a certain distance along the mandrel, the ring tooth structure of the rotor assembly is contacted with the flange fluted disc, and the ring tooth structure is meshed with the flange fluted disc, so that quick braking is realized, braking torque is larger, and heat dissipation is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a parking brake assembly according to an embodiment of the present utility model;

FIG. 2 is a side view of the parking brake assembly of the present utility model;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic illustration of the connection of a rotor assembly to a spindle in accordance with the present utility model;

fig. 6 is a schematic structural view of a flanged fluted disc according to the present utility model.

Icon: 1-shell, 2-coil assembly, 21-first coil assembly, 22-second coil assembly, 3-rotor assembly, 31-movable iron core, 32-end face tooth sleeve, 4-core shaft, 41-positioning ring groove, 5-flange fluted disc, 6-elastic bead assembly, 61-positioning bead, 62-spring, 63-installation sleeve, 7-proximity switch, 8-ventilation valve, 9-end cover and 10-end plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Examples

The following is further described with reference to specific embodiments, and referring to fig. 1-6, the present embodiment is a parking brake assembly, which includes a housing 1, a coil assembly 2, and a rotor assembly 3, wherein the rotor assembly 3 is disposed in the coil assembly 2, and an annular tooth structure is disposed on an end surface of one side of the rotor assembly 3; the mandrel 4, the rotor assembly 3 is connected with the mandrel 4 in a sliding way, and the rotor assembly 3 synchronously rotates along with the mandrel 4; the mandrel 4 passes through the middle part of the flange fluted disc 5; energizing the coil assembly 2 to attract the rotor assembly 3 to approach the flange fluted disc 5 for meshing contact braking; specifically, in the use process of the utility model, the coil assembly 2 is electrified, the suction force of the coil assembly enables the rotor assembly 3 positioned in the coil assembly 2 to move along the axial direction of the mandrel 4, the mandrel 4 drives the rotor assembly 3 to rotate when the rotor assembly 3 moves, and when the rotor assembly 3 moves towards one side of the flange fluted disc 5, the annular tooth structure of the rotor assembly is meshed with the flange fluted disc 5, so that braking is completed, the rotor assembly 3 and the mandrel 4 synchronously stop, the braking reaction speed is faster, and the braking torque is larger.

It should be noted that, the rotor assembly 3 in this embodiment includes an end face tooth sleeve 32 and a movable iron core 31, the end face tooth sleeve 32 is slidably connected to the mandrel 4, and one end of the movable iron core 31 is fixedly connected to the end face tooth sleeve 32; specifically, the mandrel 4 adopts a spline shaft, the surface of the mandrel is provided with a linear protrusion, the end face tooth sleeve 32 is connected with the linear protrusion to realize sliding and rotation, and a screw penetrates through the movable iron core 31 from the radial direction to be connected and fixed with the end face tooth sleeve 32.

In order to position the moving switch of the rotor, at least two groups of positioning ring grooves 41 are formed in the mandrel 4, the other end of the movable iron core 31 is close to the inner ring side of the mandrel 4, an elastic bead assembly 6 is arranged on the inner ring side of the mandrel, the elastic bead assembly 6 is clamped in the positioning ring grooves 41, the movable iron core 31 moves along the axial direction, and the elastic bead assembly 6 is switched between the positioning ring grooves 41; specifically, there are only two positioning ring grooves 41, and when the movable iron core 31 moves to one positioning ring groove 41, the positioning ring groove is in a braking state, and when the movable iron core 31 retreats to the other positioning ring groove 41, the rotor assembly 3 and the mandrel 4 can normally and synchronously rotate.

As shown in fig. 5, the elastic bead assembly 6 in the present embodiment includes a mounting sleeve 63, a spring 62 and a positioning bead 61, one end of the mounting sleeve 63 is connected to the inner ring side of the movable core 31, the spring 62 is provided in the mounting sleeve 63, and the positioning bead 61 presses the spring 62 to be embedded in the mounting sleeve 63; the positioning beads 61 are clamped into the positioning ring grooves 41; specifically, the positioning ring groove 41 is an arc groove structure, when the movable iron core 31 moves to brake, the positioning bead 61 rolls from the positioning ring groove 41 to the other positioning ring groove 41, and meanwhile, the positioning bead 61 moves towards the inner side of the mounting sleeve 63 to compress the spring 62 to retract, and the spring 62 resets to push the positioning bead 61 outwards.

As shown in fig. 1, 3 and 4, the present embodiment further includes a proximity switch 7, and the front end of the proximity switch 7 is close to one side end face of the movable iron core 31, and the position of the movable iron core 31 is recognized by the proximity switch 7, thereby monitoring whether it is in a braking state.

The embodiment further comprises an end plate 10 and an end cover 9, wherein the end plate 10 and the end cover 9 are respectively arranged at two ends of the shell 1, the end cover 9 is positioned at one side close to the elastic bead assembly 6, and the end plate 10 is positioned at one side close to the movable iron core 31; the proximity switch 7 passes through the end cover 9 and stretches into the shell 1, and one side of the end cover 9 is provided with more space, so that the proximity switch 7 is convenient to install.

As shown in fig. 1, the end cover 9 in this embodiment is provided with a ventilation valve 8 to prevent moisture from entering the housing 1, and heat of the coil assembly 2 can be ventilated and dissipated.

In order to improve the attraction control effect on the rotor assembly 3, the coil assembly 2 includes a first coil group 21 and a second coil group 22, and the first coil group 21 and the second coil group 22 are arranged side by side in parallel; specifically, the first coil group 21 is located at the front end of the movable iron core 31, the second coil group 22 is located at the rear end of the movable iron core 31, when braking is required, the first coil group 21 is electrified to attract the movable iron core 31 to move forward, and the second coil group 22 is not electrified; when the brake is required to be released, the second coil group 22 is energized to pull the movable iron core 31 back, and the first coil group 21 is not energized, so that the magnetic attraction direction and the moving direction of the movable iron core 31 are overlapped highly.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A parking brake assembly, characterized by: the motor rotor comprises a shell (1), a coil assembly (2) and a rotor assembly (3), wherein the rotor assembly (3) is arranged in the coil assembly (2), and a ring tooth structure is arranged on one side end surface of the rotor assembly (3);

The rotor assembly (3) is connected with the mandrel (4) in a sliding manner, and the rotor assembly (3) synchronously rotates along with the mandrel (4);

the mandrel (4) penetrates through the middle part of the flange fluted disc (5);

So that the coil assembly (2) is electrified to attract the rotor assembly (3) to approach the flanged fluted disc (5) to engage with a contact brake.

2. The parking brake assembly of claim 1, wherein: the rotor assembly (3) comprises an end face tooth sleeve (32) and a movable iron core (31), the end face tooth sleeve (32) is connected to the mandrel (4) in a sliding mode, and one end of the movable iron core (31) is fixedly connected with the end face tooth sleeve (32).

3. The parking brake assembly of claim 2, wherein: at least two groups of positioning ring grooves (41) are formed in the mandrel (4), the other end of the movable iron core (31) is close to the inner ring side of the mandrel (4), an elastic bead assembly (6) is mounted on the inner ring side of the mandrel, the elastic bead assembly (6) is clamped in the positioning ring grooves (41), the movable iron core (31) moves along the axial direction, and the elastic bead assembly (6) is switched between the positioning ring grooves (41).

4. A parking brake assembly as defined in claim 3, wherein: the elastic bead assembly (6) comprises a mounting sleeve (63), a spring (62) and a positioning bead (61), one end of the mounting sleeve (63) is connected with the inner ring side of the movable iron core (31), the spring (62) is arranged in the mounting sleeve (63), and the positioning bead (61) extrudes the spring (62) to be embedded into the mounting sleeve (63); the positioning bead (61) is clamped into the positioning ring groove (41).

5. The parking brake assembly of claim 4, wherein: the device also comprises a proximity switch (7), wherein the front end of the proximity switch (7) is close to one side end face of the movable iron core (31).

6. The parking brake assembly of claim 5, wherein: the device further comprises an end plate (10) and an end cover (9), wherein the end plate (10) and the end cover (9) are respectively arranged at two ends of the shell (1), the end cover (9) is positioned at one side close to the elastic bead assembly (6), and the end plate (10) is positioned at one side close to the movable iron core (31);

the proximity switch (7) penetrates through the end cover (9) and stretches into the shell (1).

7. The parking brake assembly of claim 6, wherein: and the end cover (9) is provided with a ventilation valve (8).

8. The parking brake assembly of claim 1, wherein: the coil assembly (2) comprises a first coil group (21) and a second coil group (22), and the first coil group (21) and the second coil group (22) are arranged in parallel side by side.