A brake head of a double-acting disc brake device

Abstract

The present invention discloses a brake head of a double-acting disc brake device, which includes a brake caliper. A brake disc is arranged in the middle of the jaws of the brake caliper. An oil passage is opened in the brake caliper. An oil inlet pipe communicating with the oil passage is arranged in the middle of the upper end of the brake caliper. Brake mechanisms are arranged on both sides of the brake disc on the brake caliper. The brake mechanism includes a collar arranged on the brake caliper. A piston slidably connected with the collar is arranged in the collar. One end of the piston is fixedly connected with a partition block. The other end of the piston extends into the oil passage. A tension spring is arranged between the end face of the piston far from the partition block and the inner wall of the oil passage. A brake lining is movably connected with the partition block. A cylindrical groove is opened in the partition block. A rotating shaft inserted into the cylindrical groove is arranged on the brake lining. The advantages of the present invention compared with the prior art are as follows: short braking time, uniform force on the brake lining, accurate resetting, good braking effect, and buffering function.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive brake devices, and specifically refers to a brake head of a double-acting disc brake device. Background Art

[0002] A vehicle brake is an important device in a vehicle braking system for controlling a moving vehicle to decelerate, stop, or maintain a stationary state. Its basic principle is to rely on the hydraulic pressure provided by a hydraulic pump to push a brake block against a brake disc to obtain a braking effect through frictional force. The brake disc refers to a disc-shaped disc that rotates together with the wheel.

[0003] Most of the existing brakes adopt a movable brake lining arranged at one end of a brake caliper, and the brake disc is pressed against a friction disc at the other end by pushing the movable brake lining at one end for frictional braking. This frictional braking method easily causes the brake disc to be offset due to unidirectional force, and the stroke of the single-acting brake lining is relatively long, affecting the braking time. Moreover, during the long-term frictional braking process, the forces on the brake lining and the friction disc are uneven, affecting the service life of the brake lining and the friction disc, and at the same time reducing the braking effect. Also, when the existing brake lining contacts the brake disc, there is no buffering. When braking suddenly while the brake disc is rotating at a high speed, it is easy to cause the vehicle to drift or roll over, resulting in accidents. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the technical defects of long braking time of the brake, uneven force on the brake lining, inaccurate reset of the brake lining, poor braking effect, and lack of buffering function, and provide a brake head of a double-acting disc brake device with a short braking time, even force on the brake lining, accurate reset, good braking effect, and a buffer area.

[0005] To solve the above technical problems, the technical solution provided by the present invention is: a brake head of a double-acting disc brake device, including a brake caliper, a brake disc is arranged in the middle of the jaw of the brake caliper, an oil passage is opened in the brake caliper, an oil inlet pipe communicating with the oil passage is arranged in the middle of the upper end of the brake caliper, braking mechanisms are arranged on both sides of the brake disc on the brake caliper, the braking mechanism includes a collar arranged on the brake caliper, a piston slidably connected with the collar is arranged in the collar, a partition block is fixedly connected to one end of the piston, the other end of the piston extends into the oil passage, a tension spring is arranged between the end face of the piston far from the partition block and the inner wall of the oil passage, a brake lining is movably connected to the partition block, a cylindrical groove is opened on the partition block, a rotating shaft inserted into the cylindrical groove is arranged on the brake lining, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the brake lining, the other end is fixedly connected to the partition block, a limiting block is fixedly connected to the end face of the brake lining, and a first blocking block and a second blocking block for blocking the limiting block are arranged on the end face of the partition block.

[0006] Preferably, the brake caliper is U-shaped.

[0007] Preferably, the collar is a spline ring and is engaged with the piston.

[0008] Preferably, the first blocking block and the second blocking block are fixed around the cylindrical groove and form an angle of 30 to 45°, and the limiting block is located between the first blocking block and the second blocking block.

[0009] Preferably, a shifting block is provided below the limiting block on the brake lining, and a braking assembly engaged with the shifting block is provided below the brake lining on the brake caliper.

[0010] Preferably, the braking assembly includes a sliding rod. An inclined sliding groove is formed on the bottom wall of the brake caliper. The sliding rod penetrates into the sliding groove and is slidably connected thereto. The top end of the sliding rod extends below the brake lining and is engaged with the shifting block. The bottom end of the sliding rod extends below the brake caliper and is fixedly connected with a friction block. A retaining ring is provided at the upper end of the sliding rod located in the sliding groove, and a spring sleeved on the sliding rod is provided below the retaining ring.

[0011] Preferably, the top end of the sliding rod is fan-shaped, and the fan angle is the same as the angle formed by the first blocking block and the second blocking block.

[0012] After adopting the above structure, the present invention has the following advantages:

[0013] 1. By arranging a tension spring between the piston and the inner wall of the oil passage, when the piston pushes the brake lining to clamp and move out of the friction brake disc, the tension spring can pull the brake lining to reset through the piston, improving the reset accuracy and efficiency.

[0014] 2. By arranging a pair of synchronously moving brake linings on the brake caliper, the braking time is shortened by the pair of synchronously moving brake linings, and at the same time, the clamping forces received on both sides of the brake disc are the same, improving the service life of the brake lining.

[0015] 3. By arranging a brake lining that can rotate a certain angle on the partition block, the brake lining that can rotate a certain angle can play a certain buffering role on the brake disc during emergency braking, improving the safety of emergency braking.

[0016] 4. By arranging a braking assembly engaged with the brake lining, when the brake lining brakes the brake disc, the brake disc drives the brake lining to rotate a certain angle. By converting the rotational force of the brake disc into the braking force of the braking assembly on the brake disc, energy conversion braking is achieved, improving the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention.

[0018] Figure 2 It is the perspective view A of Embodiment 1 of the present invention.

[0019] Figure 3 It is the perspective view B of Embodiment 1 of the present invention.

[0020] Figure 4 It is the assembly schematic diagram of Embodiment 1 of the present invention.

[0021] Figure 5 It is the structural schematic diagram of Embodiment 2 of the present invention.

[0022] Figure 6 It is the enlarged view of part A of Embodiment 2 of the present invention.

[0023] Figure 7 It is the perspective view C of Embodiment 2 of the present invention.

[0024] Figure 8 It is the perspective view D of Embodiment 2 of the present invention.

[0025] Figure 9 It is the assembly schematic diagram of Embodiment 2 of the present invention.

[0026] As shown in the figure: 1. Brake caliper, 2. Brake disc, 3. Oil passage, 4. Inlet pipe, 5. Braking mechanism, 6. Collar, 7. Piston, 8. Partition block, 9. Tension spring, 10. Brake lining, 11. Cylindrical groove, 12. Rotating shaft, 13. Torsion spring, 14. Limit block, 15. First blocking block, 16. Second blocking block, 17. Dial block, 18. Braking assembly, 19. Slide bar, 20. Slideway, 21. Friction block, 22. Retaining ring, 23. Spring. Detailed implementation manners

[0027] In the description of the present invention, it should be noted that in this text, terms such as "upper", "lower", "inner", "top", "vertical", "horizontal", "both sides", "both ends", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, terms such as "set", "place", "connect", etc. should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1, referring to the attached Figures 1-4 , a brake head of a double-acting disc brake device provided by the present invention includes a brake caliper 1. A brake disc 2 is provided in the middle of the jaws of the brake caliper 1. An oil passage 3 is opened in the brake caliper 1. An oil inlet pipe 4 communicating with the oil passage 3 is provided in the middle of the upper end of the brake caliper 1. Brake mechanisms 5 are provided on both sides of the brake disc 2 on the brake caliper 1. The brake mechanism 5 includes a collar 6 provided on the brake caliper 1. A piston 7 slidably connected thereto is provided in the collar 6. One end of the piston 7 is fixedly connected to a partition block 8. The other end of the piston 7 extends into the oil passage 3. A tension spring 9 is provided between the end face of the piston 7 away from the partition block 8 and the inner wall of the oil passage 3. A brake lining 10 movably connected thereto is provided on the partition block 8. A cylindrical groove 11 is opened on the partition block 8. A rotating shaft 12 inserted into the cylindrical groove 11 is provided on the brake lining 10. A torsion spring 13 is sleeved on the rotating shaft 12. One end of the torsion spring 13 is fixedly connected to the brake lining 10, and the other end is fixedly connected to the partition block 8. A limiting block 14 is fixedly connected to the end face of the brake lining 10. A first blocking block 15 and a second blocking block 16 for blocking the limiting block 14 are provided on the end face of the partition block 8.

[0031] Furthermore, the brake caliper 1 is U-shaped.

[0032] Furthermore, the collar 6 is a spline ring and is matched with the piston 7. By providing the spline ring, when the brake lining moves actively at an angle, the piston will not be driven to rotate by the brake lining.

[0033] Furthermore, the first blocking block 15 and the second blocking block 16 are fixed around the cylindrical groove 11 and form an angle of 30-45°, and the limiting block 14 is located between the first blocking block 15 and the second blocking block 16.

[0034] During use, when it is necessary to brake the brake disc, pressurized oil is supplied into the oil passage through the oil inlet pipe. After being pressurized, the piston pushes the piston to move on the collar. The moving piston pushes the brake lining towards the brake disc through the baffle block. The brake linings moving synchronously on both sides of the brake disc come into contact with the brake disc synchronously. At this time, the rotating brake disc drives the brake lining to rotate. When the limiting block on the brake lining contacts the second blocking block on the baffle block, the second blocking block blocks the limiting block, and the brake lining is locked on the baffle block as the brake disc rotates, thereby playing a role in buffering and braking the brake disc by the brake lining. As the brake lining gradually clamps the brake disc under force, the friction force on the brake disc is increased, causing the brake disc to brake. After the brake disc is braked, the oil inlet pipe stops supplying pressurized oil. After the piston loses the oil pressure, the tension spring pulls the piston back to its original position, thereby driving the brake lining away from the brake disc. When the brake lining disengages from the brake disc, under the action of the torsion spring, the brake lining rotates back to its original position in reverse, and the limiting block on the brake lining is blocked by the first blocking block.

[0035] Embodiment 2. Refer to the attached Figures 5-9 , The difference between the brake head of the double-acting disc brake device provided by the present invention and Embodiment 1 is as follows:

[0036] Further, a dial block 17 is provided below the limiting block 14 on the brake lining 10, and a brake assembly 18 cooperating with the dial block 17 is provided below the brake lining 10 on the brake caliper 1.

[0037] Further, the brake assembly 18 includes a slide rod 19. An inclined slideway 20 is formed on the bottom wall of the brake caliper 1. The slide rod 19 penetrates into the slideway 20 and is slidably connected thereto. The top end of the slide rod 19 extends below the brake lining 10 and cooperates with the dial block 17. The bottom end of the slide rod 19 extends below the brake caliper 1 and is fixedly connected with a friction block 21. A retaining ring 22 is provided at the upper end of the slide rod 19 located in the slideway 20, and a spring 23 sleeved on the slide rod 19 is provided below the retaining ring 22.

[0038] Further, the top end of the slide rod 19 is fan-shaped, and the fan angle is the same as the included angle formed by the first blocking block 15 and the second blocking block 16.

[0039] During use, when it is necessary to brake the brake disc, pressurized oil is supplied into the oil passage through the oil inlet pipe. After being pressurized, the piston pushes the piston to move on the collar. The moving piston pushes the brake lining towards the brake disc through the partition block, and at the same time drives the dial to move to one side of the slide bar. When the brake lining clamps the brake disc for braking, the brake disc drives the brake lining to rotate. The rotating brake lining drives the dial to rotate. The rotating dial presses down the slide bar and moves along the inclined slideway. The downward-moving slide bar drives the retaining ring to compress the spring, and at the same time drives the friction block to clamp the brake disc, realizing that the brake lining and the friction block brake the brake disc at the same time, playing the role of simultaneous braking. After the brake disc is braked, the oil inlet pipe stops supplying pressurized oil. After the piston loses oil pressure, the tension spring pulls the piston back to its original position, thereby driving the brake lining away from the brake disc. When the brake lining leaves the brake disc, under the action of the torsion spring, the brake lining reverses and returns to its original position, and at the same time drives the dial to return to its original position. After the dial returns to its original position, under the tension of the spring, it drives the slide bar to return to its original position. The returned slide bar drives the friction block away from the brake disc, which brakes faster and has a better braking effect compared with Embodiment 1.

[0040] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A brake head of a double-acting disc brake device, comprising a brake caliper (1), and a brake disc (2) is arranged in the middle of the jaws of the brake caliper (1). Characterized in that: An oil passage (3) is provided in the brake caliper (1), an oil inlet pipe (4) communicating with the oil passage (3) is provided in the middle of the upper end of the brake caliper (1), and brake mechanisms (5) are provided on both sides of the brake disc (2) on the brake caliper (1). The brake mechanism (5) includes a collar (6) arranged on the brake caliper (1), a piston (7) slidably connected thereto is arranged in the collar (6), one end of the piston (7) is fixedly connected with a partition block (8), the other end of the piston (7) extends into the oil passage (3), and a tension spring (9) is arranged between the end face of the piston (7) away from the partition block (8) and the inner wall of the oil passage (3). A brake lining (10) is movably connected to the partition block (8). A cylindrical groove (11) is provided in the partition block (8), a rotating shaft (12) inserted into the cylindrical groove (11) is provided on the brake lining (10), a torsion spring (13) is sleeved on the rotating shaft (12), one end of the torsion spring (13) is fixedly connected with the brake lining (10), the other end is fixedly connected with the partition block (8), a limiting block (14) is fixedly connected to the end face of the brake lining (10), and a first blocking block (15) and a second blocking block (16) for blocking the limiting block (14) are arranged on the end face of the partition block (8).

2. A brake head of a double-acting disc brake device according to claim 1, Characterized in that: The brake caliper (1) is U-shaped.

3. A brake head of a double-acting disc brake device according to claim 1, Characterized in that: The collar (6) is a spline ring and is matched with the piston (7).

4. A brake head of a double-acting disc brake device according to claim 1, Characterized in that: The first blocking block (15) and the second blocking block (16) are fixed around the cylindrical groove (11) and form an included angle of 30-45°, and the limiting block (14) is located between the first blocking block (15) and the second blocking block (16).

5. A brake head of a double-acting disc brake device according to claim 4, Characterized in that: A dial block (17) is provided below the limiting block (14) on the brake lining (10), and a brake assembly (18) matched with the dial block (17) is provided below the brake lining (10) on the brake caliper (1).

6. A brake head of a double-acting disc brake device according to claim 5, Characterized in that: The braking assembly (18) includes a sliding rod (19). An inclined sliding track (20) is formed on the bottom wall of the brake caliper (1). The sliding rod (19) penetrates into the sliding track (20) and is slidably connected thereto. The top end of the sliding rod (19) extends below the brake lining (10) and cooperates with the shifting block (17). The bottom end of the sliding rod (19) extends below the brake caliper (1) and is fixedly connected with a friction block (21). A retaining ring (22) is arranged at the upper end of the sliding rod (19) located in the sliding track (20), and a spring (23) sleeved on the sliding rod (19) is arranged below the retaining ring (22).

7. The braking head of a double-acting disc braking device according to claim 6, wherein: The top end of the sliding rod (19) is fan-shaped, and the fan-shaped angle is the same as the included angle formed by the first blocking block (15) and the second blocking block (16).

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