Double-MGU rear brake

Abstract

The double-MGU rear brake comprises a first caliper body and a second caliper body, a connecting mechanism is arranged between the first caliper body and the second caliper body, a mounting rod is in threaded connection between the first caliper body and the second caliper body, and connecting plates are slidably connected to the two sides of the mounting rod correspondingly; and brake plates are fixedly connected to the surfaces of one sides of the connecting plates on the two sides, and hydraulic oil brake mechanisms are arranged in the first caliper body and the second caliper body. By using the connecting mechanism, the first caliper body and the second caliper body of the double-MGU rear brake are stably and flexibly connected; the connecting mechanism comprises a fixing frame, a fixing rod, and a connecting groove and a sliding rod which are matched with the fixing frame and the fixing rod. Through sliding of the sliding rod in the connecting groove and clamping of the fixing hook and the fixing rod, firm connection between the caliper bodies is achieved, connection between the caliper bodies is easier to detach and recombine, and great convenience is provided for follow-up maintenance, inspection and replacement of the brake plate.

Description

Technical Field

[0001] The utility model relates to the field of rear brakes, and in particular to a dual MGU rear brake. Background Art

[0002] The rear brake is a crucial component of a vehicle's braking system, providing essential deceleration and stopping capabilities during driving, particularly during emergency braking. By operating the brake pedal, the driver brings the friction pads in the rear brake into close contact with the wheel's brake disc or drum, generating friction that converts the vehicle's kinetic energy into heat, slowing or stopping the vehicle.

[0003] The current dual MGU rear brake still has some shortcomings during use:

[0004] (1) Existing brakes often experience significant wear and tear on the brake plates during long-term use due to frequent braking operations. However, in most current brake designs, the calipers are usually fixed, which makes the process of disassembling, maintaining, and replacing the internal brake plates quite cumbersome and inconvenient. This design not only increases the difficulty and cost of maintenance, but may also affect the overall performance and safety of the braking system due to the inability to replace worn brake plates in a timely manner;

[0005] (2) Existing brake designs generally rely on a single-sided piston to drive the brake plate to move, and cooperate with the caliper body to slide on the bracket to achieve clamping braking on both sides of the brake disc; however, this traditional braking method often shows less than ideal braking effect in actual application. Since the braking force is only provided by a single-sided piston, it may cause uneven force on both sides of the brake disc, which will affect the braking efficiency and stability after long-term use.

[0006] Therefore, we made improvements to this and proposed a dual MGU rear brake. Utility Model Content

[0007] In view of the deficiencies of the prior art, the present invention provides a dual MGU rear brake, which solves the problems mentioned in the background art.

[0008] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0009] Dual MGU rear brake to solve the above problems.

[0010] The specific application is as follows:

[0011] The invention comprises a first caliper body and a second caliper body, wherein a connecting mechanism is provided between the first caliper body and the second caliper body, a mounting rod is threadedly connected between the first caliper body and the second caliper body, and connecting plates are slidably connected to both sides of the mounting rod, and brake plates are fixedly connected to one side surface of each connecting plate on both sides, and a hydraulic brake mechanism is provided inside the first caliper body and the second caliper body, and a brake disc is provided inside the first caliper body and the second caliper body;

[0012] The connecting mechanism includes a fixing frame, and two fixing frames are provided. The two fixing frames are respectively fixedly installed on one side surface of the second caliper body, and a fixing rod is fixedly installed inside the fixing frame. Two connecting grooves are provided on one side surface of the first caliper body, and the fixing frames are snap-connected to the connecting grooves.

[0013] As the preferred technical solution of the present application, a sliding groove is provided on one side of the connecting groove, and the sliding groove is connected to the connecting groove. A sliding rod is slidably connected inside the connecting groove, and a fixed hook is fixedly installed on the lower surface of the sliding rod, and the fixed hook matches the fixed rod.

[0014] As a preferred technical solution of the present application, a spring is fixedly installed at the bottom of the slide groove, and the upper end of the spring is fixedly connected to the fixing hook.

[0015] As a preferred technical solution of the present application, a limiting groove is provided on the outside of the slide groove, and the inside of the limiting groove is slidably connected to a limiting plate, and the connection between the limiting plate and the sliding rod is a fixed connection.

[0016] As a preferred technical solution of the present application, the hydraulic brake mechanism includes a piston cavity, and the piston cavity is evenly opened on the surface of the first caliper body and the second caliper body. The interior of the piston cavity is slidably connected to the piston body, and the connection between the piston body and the connecting plate is a fixed connection, and an oil seal is arranged between the piston body and the piston cavity.

[0017] As a preferred technical solution of the present application, an oil delivery channel is provided inside the first caliper body and the second caliper body, and a plurality of oil inlet holes are provided between the oil delivery channel and the plurality of piston chambers.

[0018] As a preferred technical solution of the present application, an oil pipe is fixedly connected between the oil delivery channel inside the first caliper body and the oil delivery channel inside the second caliper body, and an oil nozzle is connected to one side of the oil delivery channel inside the first caliper body.

[0019] As a preferred technical solution of the present application, a plurality of ventilation holes are opened in the middle of the brake disc, and a plurality of heat dissipation holes are opened on the inner walls on both sides of the ventilation holes.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the scheme of this application:

[0022] 1. The dual-MGU rear brake's first and second caliper bodies achieve a secure yet flexible connection through a connecting mechanism consisting of a mounting bracket and a fixed rod, along with a matching connecting slot and sliding rod. The sliding rod slides within the connecting slot, and the fixed hook engages the fixed rod, creating a secure connection between the caliper bodies. This also makes the connection easier to disassemble and reassemble, greatly facilitating subsequent maintenance, inspection, and brake plate replacement.

[0023] 2. Through the use of the hydraulic brake mechanism, oil channels are opened inside the first caliper body and the second caliper body. The two oil channels are connected by an oil pipe. When the brake pedal is stepped on, the hydraulic oil is pressurized and can enter the oil channels on both sides. It pushes the piston bodies on both sides to slide in the piston cavity through the oil inlet hole, which can make the force on both sides of the brake disc more balanced, avoiding the braking imbalance problem that may be caused by traditional unilateral piston drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first three-dimensional structure of the dual MGU rear brake provided by this application;

[0025] Figure 2 A schematic diagram of the second three-dimensional structure of the dual MGU rear brake provided in this application;

[0026] Figure 3 A schematic diagram of the cutaway three-dimensional structure of the first and second calipers of the dual MGU rear brake provided by this application;

[0027] Figure 4 A schematic diagram of the structure of the dual MGU rear brake mounting bracket and mounting rod provided for this application;

[0028] Figure 5 This is a schematic structural diagram of the cross-section of the first and second calipers of the dual MGU rear brake provided in this application.

[0029] Indicated in the figure:

[0030] 1. First caliper body; 2. Second caliper body; 3. Connecting mechanism; 301. Fixing frame; 302. Fixing rod; 303. Connecting groove; 304. Slide groove; 305. Sliding rod; 306. Fixing hook; 307. Spring; 308. Limiting groove; 309. Limiting plate; 4. Mounting rod; 5. Connecting plate; 6. Brake plate; 7. Hydraulic brake mechanism; 701. Piston chamber; 702. Piston body; 703. Oil delivery channel; 704. Oil inlet hole; 705. Oil delivery pipe; 706. Oil seal; 707. Oil nozzle; 8. Brake disc; 801. Vent; 802. Heat dissipation hole. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the examples described are only part of the embodiments of the present invention, not all of them.

[0032] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] To solve the technical problems in the background art, the following dual MGU rear brake is provided:

[0037] Combine Figure 1 - Figure 5As shown, the utility model provides a dual MGU rear brake, including a first caliper body 1 and a second caliper body 2, a connecting mechanism 3 is provided between the first caliper body 1 and the second caliper body 2, a mounting rod 4 is threadedly connected between the first caliper body 1 and the second caliper body 2, and connecting plates 5 are slidably connected on both sides of the mounting rod 4, and brake plates 6 are fixedly connected to one side surface of the connecting plates 5 on both sides, a hydraulic brake mechanism 7 is provided inside the first caliper body 1 and the second caliper body 2, and brake discs 8 are provided inside the first caliper body 1 and the second caliper body 2; the connecting mechanism 3 includes a fixing frame 301, and there are two fixing frames 301, the two fixing frames 301 are respectively fixedly installed on one side surface of the second caliper body 2, and a fixing rod 302 is fixedly installed inside the fixing frame 301, two connecting grooves 303 are provided on one side surface of the first caliper body 1, and the fixing frame 301 is snap-connected to the connecting groove 303.

[0038] In this embodiment: two fixing brackets 301 are installed on one side surface of the second caliper body 2, and a fixing rod 302 is fixed inside each fixing bracket 301. Accordingly, two connecting grooves 303 are opened on one side surface of the first caliper body 1, and the connecting grooves 303 are snap-connected with the fixing brackets 301, thereby realizing the assembly connection between the first caliper body 1 and the second caliper body 2; in addition, the mounting rod 4 can limit the connecting plate 5 to achieve the effect of limiting the sliding of the brake plate 6; inside the first caliper body 1 and the second caliper body 2, a hydraulic brake mechanism 7 and a brake disc 8 are provided to enhance the structural stability of the brake and ensure efficient braking performance.

[0039] refer to Figure 1 - Figure 5 On the basis of the above embodiment, in order to enable the first clamp body 1 and the second clamp body 2 to be fixedly connected, this embodiment provides the following design:

[0040] As a preferred embodiment, a sliding groove 304 is opened on one side of the connecting groove 303, and the sliding groove 304 is connected to the connecting groove 303. A sliding rod 305 is slidably connected inside the connecting groove 303, and a fixing hook 306 is fixedly installed on the lower surface of the sliding rod 305, and the fixing hook 306 matches the fixing rod 302.

[0041] In this embodiment, a sliding groove 304 is provided on one side of the connecting groove 303, and the sliding groove 304 is connected to the connecting groove 303 to form a channel. The sliding rod 305 is slidably connected to the inside of the connecting groove 303, and a fixing hook 306 matching the fixing rod 302 is fixedly installed on the lower surface of the sliding rod 305. When the first clamp body 1 and the second clamp body 2 need to be fixedly connected, it is only necessary to insert the fixing frame 301 into the connecting groove 303 and push the sliding rod 305 to make it slide in the sliding groove 304, so that the fixing hook 306 hooks the fixing rod 302 inside the fixing frame 301, thereby achieving a stable connection between the two.

[0042] refer to Figure 5 On the basis of the above embodiment, in order to fix the fixing hook 306, this embodiment provides the following design:

[0043] As a preferred embodiment, a spring 307 is fixedly installed at the bottom of the sliding groove 304 , and the upper end of the spring 307 is fixedly connected to the fixing hook 306 .

[0044] In this embodiment, a spring 307 is fixedly installed at the bottom of the slide groove 304, and the upper end of the spring 307 is fixedly connected to the fixing hook 306, so that when the fixing hook 306 hooks the fixing rod 302, the spring 307 can support the fixing hook 306 through its own elastic force, ensuring that the fixing hook 306 is firmly hooked to the fixing rod 302 and is not easy to fall off.

[0045] refer to Figure 5 On the basis of the above embodiment, in order to limit the sliding rod 305, this embodiment provides the following design:

[0046] As a preferred embodiment, a limiting groove 308 is provided on the outside of the slide groove 304 , and the limiting groove 308 is internally slidably connected to a limiting plate 309 , and the limiting plate 309 is fixedly connected to the sliding rod 305 .

[0047] In this embodiment: when the sliding rod 305 slides, it will drive the limiting plate 309 on the surface to slide in the limiting groove 308. The limiting groove 308 can limit the sliding distance of the sliding rod 305 to prevent the top end of the sliding rod 305 from sliding out of the sliding groove 304.

[0048] refer to Figure 1 - Figure 3 On the basis of the above embodiment, in order to drive the piston body 702 to move, drive the brake plate 6 to move, and brake the brake disc 8, this embodiment provides the following design:

[0049] As a preferred embodiment, the hydraulic brake mechanism 7 includes a piston chamber 701, and the piston chamber 701 is evenly opened on the surface of the first caliper body 1 and the second caliper body 2. The interior of the piston chamber 701 is slidably connected to the piston body 702, and the connection between the piston body 702 and the connecting plate 5 is a fixed connection, and an oil seal 706 is arranged between the piston body 702 and the piston chamber 701.

[0050] In this embodiment: the piston chambers 701 are evenly opened on the surfaces of the first caliper body 1 and the second caliper body 2, and a piston body 702 is slidably connected to the inside of each piston chamber 701. The piston body 702 can move in the piston chamber 701 under the action of the pressure of the hydraulic oil; at the same time, in order to prevent the leakage of the hydraulic oil, an oil seal 706 is arranged between the piston body 702 and the piston chamber 701 to ensure the sealing and stability of the hydraulic system; when the hydraulic pressure acts on the piston body 702, it will push the piston body 702 to move in the piston chamber 701, and then drive the connecting plate 5 and the brake plate 6 to move, and finally realize the braking of the brake disc 8.

[0051] As a preferred embodiment, an oil delivery channel 703 is provided inside the first caliper body 1 and the second caliper body 2 , and a plurality of oil inlet holes 704 are provided between the oil delivery channel 703 and the plurality of piston chambers 701 .

[0052] In this embodiment: the oil delivery channel 703 is connected to the multiple piston chambers 701 through the multiple oil inlet holes 704, forming a complete hydraulic oil circuit system; when the brake needs to work, the hydraulic oil will be delivered to each piston chamber 701 through the oil delivery channel 703, and enter the interior of the piston chamber 701 through the oil inlet hole 704, acting on the piston body 702, thereby driving the piston body 702 to move.

[0053] As a preferred embodiment, an oil delivery pipe 705 is fixedly connected between the oil delivery channel 703 inside the first caliper body 1 and the oil delivery channel 703 inside the second caliper body 2 , and an oil nozzle 707 is connected to one side of the oil delivery channel 703 inside the first caliper body 1 .

[0054] In this embodiment: the oil nozzle 707 can discharge the hydraulic oil into the oil pipeline 703, and an oil pipeline 705 is fixedly connected between the oil channel 703 inside the first caliper body 1 and the oil channel 703 inside the second caliper body 2, which can ensure that the hydraulic oil can flow freely between the two caliper bodies, realize the interconnection of the hydraulic oil circuits, and then realize the movement of the piston bodies 702 on both sides, so that the connecting plates 5 and brake plates 6 on both sides act on the two sides of the brake disc 8 respectively, so that the force on both sides of the brake disc 8 is more balanced.

[0055] refer to Figure 1 - Figure 3 Based on the above embodiment, when the brake plate 6 contacts the brake disc 8, high temperature will be generated. In order to improve the heat dissipation effect of the brake disc 8, this embodiment provides the following design:

[0056] As a preferred embodiment, a plurality of ventilation openings 801 are provided in the middle of the brake disc 8 , and a plurality of heat dissipation holes 802 are provided on the inner walls on both sides of the ventilation openings 801 .

[0057] In this embodiment: a plurality of ventilation holes 801 are opened in the middle of the brake disc 8. The ventilation holes 801 can provide additional air circulation channels for the brake disc 8 and can also effectively remove the heat from the surface of the brake disc 8 during braking; at the same time, by opening a plurality of heat dissipation holes 802 on the inner walls on both sides of the ventilation holes 801, these heat dissipation holes 802 can further increase the contact area between the air and the inside of the brake disc 8, thereby accelerating the dissipation of heat.

[0058] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0059] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A dual MGU rear brake, comprising a first caliper (1) and a second caliper (2), characterized in that: A connecting mechanism (3) is provided between the first caliper body (1) and the second caliper body (2); a mounting rod (4) is threadedly connected between the first caliper body (1) and the second caliper body (2); connecting plates (5) are slidably connected to both sides of the mounting rod (4); and brake plates (6) are fixedly connected to one side surface of the connecting plates (5) on both sides; a hydraulic brake mechanism (7) is provided inside the first caliper body (1) and the second caliper body (2); and a brake disc (8) is provided inside the first caliper body (1) and the second caliper body (2); The connecting mechanism (3) comprises a fixing frame (301), and two fixing frames (301) are provided. The two fixing frames (301) are respectively fixedly mounted on a side surface of the second caliper body (2), and a fixing rod (302) is fixedly mounted inside the fixing frame (301). Two connecting grooves (303) are provided on a side surface of the first caliper body (1), and the fixing frames (301) are connected to the connecting grooves (303) by snapping.

2. The dual MGU rear brake according to claim 1, characterized in that: A sliding groove (304) is provided on one side of the connecting groove (303), and the sliding groove (304) is connected to the connecting groove (303). A sliding rod (305) is slidably connected inside the connecting groove (303), and a fixing hook (306) is fixedly installed on the lower surface of the sliding rod (305), and the fixing hook (306) matches the fixing rod (302).

3. The dual MGU rear brake according to claim 2, characterized in that: A spring (307) is fixedly installed at the bottom of the sliding groove (304), and the upper end of the spring (307) is fixedly connected to the fixing hook (306).

4. The dual MGU rear brake according to claim 2, characterized in that: A limiting groove (308) is provided on the outside of the sliding groove (304), and the inside of the limiting groove (308) is slidably connected to a limiting plate (309), and the limiting plate (309) and the sliding rod (305) are connected in a fixed manner.

5. The dual MGU rear brake according to claim 1, characterized in that: The hydraulic brake mechanism (7) includes a piston cavity (701), and the piston cavity (701) is evenly opened on the surface of the first caliper body (1) and the second caliper body (2). The interior of the piston cavity (701) is slidably connected to a piston body (702), and the connection mode of the piston body (702) and the connecting plate (5) is a fixed connection. An oil seal (706) is provided between the piston body (702) and the piston cavity (701).

6. The dual MGU rear brake according to claim 1, characterized in that: An oil delivery channel (703) is provided inside the first caliper body (1) and the second caliper body (2), and a plurality of oil inlet holes (704) are provided between the oil delivery channel (703) and the plurality of piston chambers (701).

7. The dual MGU rear brake according to claim 6, characterized in that: An oil delivery pipe (705) is fixedly connected between the oil delivery channel (703) inside the first caliper body (1) and the oil delivery channel (703) inside the second caliper body (2), and an oil nozzle (707) is connected to one side of the oil delivery channel (703) inside the first caliper body (1).

8. The dual MGU rear brake according to claim 1, characterized in that: A plurality of ventilation openings (801) are provided in the middle of the brake disc (8), and a plurality of heat dissipation holes (802) are provided on the inner walls on both sides of the ventilation openings (801).

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