Encircling type brake

Abstract

The utility model discloses an encircling type brake, which comprises a brake disc, a brake disc, a brake rod, a brake rod and a brake rod, wherein a V-shaped groove is annularly formed in the outer circumferential surface of one side of the brake disc; the elastic brake ring comprises a brake ring body and a return spring piece, the brake ring body is of an incomplete annular structure, and the two ends of the brake ring body are connected through the return spring piece to form an annular structure; the lining mounting ring is of an incomplete circular ring structure, the shape of the cross section of the lining mounting ring is matched with that of the V-shaped groove, the lining mounting ring is fixedly arranged in the elastic brake ring in a sleeving manner and is mounted in the V-shaped groove, and mounting grooves for mounting the lining are annularly formed in the two sides of the lining mounting ring; the shell is of a cover-shaped structure with two open ends, and a notch is formed in one radial side of the shell; the executing mechanism comprises a first brake arm, a second brake arm, a brake arm support and a driving assembly used for driving the first brake arm and the second brake arm. According to the V-shaped groove surrounding type design, braking is smoother, the heat dissipation performance, the heat stability and the water stability are good, and the friction resistance and the braking effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to an embracing brake. Background Art

[0002] The brake is a device that has the function of slowing down, stopping or keeping the moving parts (or moving machinery) stopped. It is a mechanical part that stops or slows down the moving parts in the machinery. It is commonly known as brakes or gates. The brake is mainly composed of a frame, brake parts and operating devices.

[0003] Caliper disc brakes and drum brakes are common types of brakes for vehicles. Caliper disc brakes have higher manufacturing requirements for brakes and brake lines, higher friction pad wear and tear, and high maintenance costs. In addition, due to the small area of ​​the friction pad, the relative friction working surface is also small, and the required brake hydraulic pressure is high.

[0004] Drum brakes have poor water stability. After wading through water, the braking performance of drum brakes is reduced, and multiple braking is required to restore normal braking effect. Summary of the invention

[0005] The utility model aims to overcome the deficiencies of the prior art and provide an embracing brake.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] Wraparound brake, including:

[0008] A brake disc having an outer circumferential surface on one side thereof provided with a V-shaped groove in an annular shape;

[0009] The elastic brake ring comprises a brake ring body and a return spring sheet, wherein the brake ring body is an incomplete annular structure, and two ends of the brake ring body are connected by the return spring sheet to form an annular structure;

[0010] The brake pad mounting ring is an incomplete circular ring structure, and its cross-sectional shape matches the V-shaped groove. Its fixed sleeve is arranged in the elastic brake ring and installed in the V-shaped groove, and its two sides are provided with mounting grooves for mounting brake pads in an annular shape;

[0011] The housing is a cover-like structure with openings at both ends and a notch on one radial side;

[0012] The actuator includes a first brake arm, a second brake arm, a brake arm bracket and a driving assembly for driving the first brake arm and the second brake arm; one end of the first brake arm and the second brake arm are rotatably mounted on one side of the brake arm bracket, and the other ends of the first brake arm and the second brake arm are respectively connected to the two ends of the return spring sheet through the slots.

[0013] Furthermore, through holes are formed on the side walls and / or bottom wall of the V-shaped groove.

[0014] Furthermore, the installation gap between the inner side wall of the V-shaped groove and the brake pad is 0.05-0.15 mm.

[0015] Furthermore, the brake pad mounting ring is fixed in the elastic brake ring by bolts.

[0016] Furthermore, a first mounting hole is provided on the outer circumferential surface of the elastic brake ring; an annular groove is provided on the outer circumferential surface of the brake pad mounting ring, and a second mounting hole is provided in the annular groove; a bolt passes through the second mounting hole and is fixed in the first mounting hole.

[0017] Further, the driving assembly includes a cable assembly and / or a power device.

[0018] Furthermore, the cable assembly includes a cable guide and a brake cable. One end of the cable guide is installed on the first brake arm, and the brake cable is installed on the second brake arm after passing through the cable guide.

[0019] Furthermore, the power device comprises a hydraulic cylinder or a pneumatic cylinder or an electric push rod, and the power device has two sets, the fixed end of the power device is fixed on the brake arm bracket, and the output end of the power device is connected to the corresponding brake arm.

[0020] Furthermore, a mounting plate is integrally formed at one end of the shell, and the brake arm bracket is mounted on the mounting plate.

[0021] Furthermore, a bolt hole is provided on the outer circumferential surface of the shell, and a gap adjustment bolt is provided in the bolt hole. Beneficial Effects

[0022] 1. The V-shaped groove embracing design of the utility model makes braking smoother, and the pressure of the brake pad on the two side walls of the V-shaped groove is increased, thereby improving the friction resistance and braking effect.

[0023] 2. The brake pad is small in size, and its working area is only 45% to 55% of the working area of ​​the existing drum brake disc, so it has better heat dissipation and thermal stability.

[0024] 3. Through holes are provided on the side walls and / or bottom walls of the V-shaped groove, which reduces the weight of the brake disc and improves the heat dissipation effect of the brake disc.

[0025] 4. The water stability is better. The unit pressure of the brake pad on the brake disc is high, which can easily squeeze out the water. At the same time, it is easy to shake off the water under the action of centrifugal force. In addition, it has a wiping effect on the disc. Therefore, after getting out of the water, it only needs one or two brakings to return to normal, while the drum brake needs more than ten brakings to restore the normal braking effect.

[0026] 5. When the brake ring is tightly held, in the same direction as the wheel rotates, the brake disc, under the traction of friction, holds the brake ring tighter and tighter, thereby increasing the pressure of the pad on both sides of the V-shaped groove. Under the condition of brake discs with the same diameter, the utility model is more labor-saving.

[0027] 6. Under the condition of outputting the same braking torque, the mass and size of the V-groove disc brake are one-third smaller than those of the drum or caliper brake.

[0028] 7. The brake pads are easy to replace, reducing maintenance costs.

[0029] 8. The gap between the inner wall of the V-groove and the brake pad is adjustable, which shortens the braking time. The thermal expansion of the brake disc will not cause the loss of brake pedal travel like the thermal expansion of the brake drum.

[0030] 9. The utility model can be applied to, but not limited to, commercial vehicles, buses, trains, bicycles, and motorcycles, and has high directional stability during braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 An exploded view of a preferred embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of a preferred embodiment of the utility model;

[0033] Figure 3 Another structural schematic diagram of a preferred embodiment of the utility model;

[0034] In the figure: brake disc 1, housing 2, power unit 3, elastic brake ring 4, brake pad mounting ring 5, brake pad 6, first brake arm 7, second brake arm 8, brake arm bracket 9, cable guide 10, clearance adjustment bolt 11, brake cable 12, notch 21, mounting plate 22, brake ring body 41, return spring sheet 42, first mounting hole 43, fixing block 44, fixing block 44, mounting groove 51, annular groove 52, second mounting hole 53, V-shaped groove 101, through hole 102. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0036] Example: See Figure 1 — Figure 3As shown, it comprises: a brake disc 1, on the outer circumferential surface of one side of which a V-shaped groove 101 is provided in an annular shape; an elastic brake ring 4, which comprises a brake ring body 41 and a return spring sheet 42, the brake ring body 41 is an incomplete annular structure, and the two ends of the brake ring body 41 are connected by the return spring sheet 42 to form an annular structure; a brake pad mounting ring 5, which is an incomplete annular structure, and its cross-sectional shape matches the V-shaped groove 101, which is fixedly sleeved in the elastic brake ring 4 and installed in the V-shaped groove 101, and its two sides are provided with annular mounting grooves 51 for mounting a brake pad 6, preferably, the brake pad 6 is a ceramic Ceramic brake pad, the brake pad mounting ring 5 is made of aluminum alloy; the outer shell 2 is a cover-like structure with openings at both ends, and a slot 21 is provided on one radial side; the actuator includes a first brake arm 7, a second brake arm 8, a brake arm bracket 9 and a driving component for driving the first brake arm 7 and the second brake arm 8; one end of the first brake arm 7 and the second brake arm 8 is rotatably mounted on one side of the brake arm bracket 9, and the other ends of the first brake arm 7 and the second brake arm 8 are respectively connected to the two ends of the return spring sheet 42 through the slot 21. In this embodiment, the two ends of the return spring sheet 42 are respectively provided with fixing blocks 44.

[0037] In this embodiment, a through hole 102 is formed on the side wall and / or the bottom wall of the V-shaped groove 101. The through hole 102 is provided to reduce the weight of the brake disc and improve the heat dissipation effect of the brake disc.

[0038] Preferably, the installation gap between the inner wall of the V-shaped groove 101 and the brake pad 6 is 0.05-0.15 mm.

[0039] In this embodiment, the brake pad mounting ring 5 is fixed in the elastic brake ring 4 by bolts. Specifically, a first mounting hole 43 is provided on the outer circumferential surface of the elastic brake ring 4; an annular groove 52 is provided on the outer circumferential surface of the brake pad mounting ring 5, and a second mounting hole 53 is provided in the annular groove 52; the bolts pass through the second mounting hole 53 and are fixed in the first mounting hole 43.

[0040] In this embodiment, the driving assembly includes a cable assembly and / or a power unit 3; specifically, the cable assembly includes a cable guide 10 and a brake cable 12, one end of the cable guide 10 is installed on the first brake arm 7, and the brake cable 12 is installed on the second brake arm 8 after passing through the cable guide 10, and pulling the other end of the brake cable 12 can play a parking role; further, the power unit 3 includes a hydraulic cylinder or an air cylinder or an electric push rod, and the power unit 3 has two sets. The fixed end of the power unit 3 is fixed on the brake arm bracket 9, and the output end of the power unit 3 is connected to the corresponding brake arm.

[0041] In this embodiment, a mounting plate 22 is integrally formed at one end of the housing 2 , and the brake arm bracket 9 is mounted on the mounting plate 22 .

[0042] In this embodiment, a bolt hole is provided on the outer circumferential surface of the housing 2 , and a gap adjustment bolt 11 is provided in the bolt hole. The gap between the brake pad 6 and the inner wall of the V-shaped groove 101 can be adjusted by the gap adjustment bolt 11 .

[0043] The utility model is installed and works as follows: the brake disc 1 is cast with alloy cast steel and fixed on the wheel, and rotates with the wheel; the housing 2 is fixed on the axle, and the first brake arm 7 and the second brake arm 8 are installed on the brake arm bracket 9; the two ends of the elastic brake ring 4 are respectively connected with the return spring sheet 42, and the two ends of the elastic brake ring 4 are connected with the corresponding brake arms; the clearance adjustment bolt 11 is installed on the housing 2, and plays the role of adjusting the clearance between the brake pad 6 and the inner wall of the V-shaped groove 101; the brake pad mounting ring 5 is fixed in the elastic brake ring 4 with a plurality of countersunk T-bolts, and the brake pad 6 is installed on both sides of the brake pad mounting ring 5; the first brake arm 7 and the second brake arm 8 are respectively rotatably mounted on the inner side of the brake arm bracket 9, and ... The upper ends of the arms 8 are respectively connected to the output ends of the power device 3; the fixed end of the power device 3 is installed on the brake arm bracket 9. Taking the hydraulic cylinder as an example of the power device 3: start the hydraulic cylinder, the hydraulic cylinder output shaft pushes the first brake arm 7 and the second brake arm 8, the first brake arm 7 and the second brake arm 8 pull the elastic brake ring 4, the elastic brake ring 4 makes the brake pad 6 on the brake pad mounting ring 5 press against the V-groove 101 and the two sides of the V-groove 101 to produce friction, hold the rotating brake disc 1 tightly and force it to stop; achieve the purpose of braking; the end of the brake cable 12 and the cable guide 10 are respectively fixed in the mounting holes of the corresponding brake arms, the brake cable 12 plays a parking role, and the return spring sheet 42 plays a role in resetting the brake arm and the elastic brake ring 4.

Claims

1. The encircling brake is characterized by: include: A brake disc (1) having an outer circumferential surface on one side thereof provided with a V-shaped groove (101) in an annular shape; The elastic brake ring (4) comprises a brake ring body (41) and a return spring sheet (42), wherein the brake ring body (41) is an incomplete annular structure, and two ends of the brake ring body (41) are connected by the return spring sheet (42) to form an annular structure; A brake pad mounting ring (5) is an incomplete annular structure, the cross-sectional shape of which matches the V-shaped groove (101), the fixed sleeve is arranged in the elastic brake ring (4) and is installed in the V-shaped groove (101), and the two sides of the ring are provided with mounting grooves (51) for mounting the brake pad (6); The housing (2) is a cover-like structure with openings at both ends, and a notch (21) is provided on one radial side thereof; The actuator comprises a first brake arm (7), a second brake arm (8), a brake arm bracket (9) and a driving assembly for driving the first brake arm (7) and the second brake arm (8); one end of the first brake arm (7) and the second brake arm (8) are rotatably mounted on one side of the brake arm bracket (9), and the other ends of the first brake arm (7) and the second brake arm (8) are respectively passed through the notch (21) and connected to the two ends of the return spring sheet (42).

2. The wraparound brake according to claim 1, characterized in that: A through hole (102) is formed on the side wall and / or the bottom wall of the V-shaped groove (101).

3. The wraparound brake according to claim 1, characterized in that: The installation clearance between the inner side wall of the V-shaped groove (101) and the brake pad (6) is 0.05-0.15 mm.

4. The wraparound brake according to claim 1, characterized in that: The brake pad mounting ring (5) is fixed in the elastic brake ring (4) by means of bolts.

5. The wraparound brake according to claim 4, characterized in that: A first mounting hole (43) is provided on the outer circumferential surface of the elastic brake ring (4); an annular groove (52) is provided on the outer circumferential surface of the brake pad mounting ring (5), and a second mounting hole (53) is provided in the annular groove (52); a bolt passes through the second mounting hole (53) and is fixed in the first mounting hole (43).

6. The wraparound brake according to claim 1, characterized in that: The driving assembly comprises a cable assembly and / or a power device (3).

7. The wraparound brake according to claim 6, characterized in that: The cable assembly comprises a cable guide (10) and a brake cable (12); one end of the cable guide (10) is mounted on the first brake arm (7); and the brake cable (12) passes through the cable guide (10) and is then mounted on the second brake arm (8).

8. The wraparound brake according to claim 6, characterized in that: The power device (3) comprises a hydraulic cylinder or a pneumatic cylinder or an electric push rod. The power device (3) has two sets. The fixed end of the power device (3) is fixed on the brake arm bracket (9), and the output end of the power device (3) is connected to the corresponding brake arm.

9. The wraparound brake according to claim 1, characterized in that: A mounting plate (22) is integrally formed at one end of the housing (2), and the brake arm bracket (9) is mounted on the mounting plate (22).

10. The wraparound brake according to claim 1, characterized in that: The outer circumferential surface of the housing (2) is provided with a bolt hole, and a gap adjustment bolt (11) is provided in the bolt hole.

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