brake

Abstract

This utility model discloses a brake, which is installed on the output end of a rotary drive device for braking the drive end of the rotary drive device. The brake includes: a base, a brake wheel, a cylinder, a brake mounting bracket, a clamping mechanism, a clamping transmission mechanism, and a compression spring mechanism. The cylinder extends and retracts upward, causing the clamping transmission mechanism to rotate, causing the left side of the clamping mechanism to press against the brake wheel. When the clamping transmission mechanism rotates, it causes the right side of the brake mounting bracket to rotate to the left, causing the right side of the clamping mechanism to press against the brake wheel, thus braking the brake wheel. When the right side of the brake mounting bracket rotates to the left, the frame of the brake mounting bracket presses against one side of the compression spring mechanism, causing the clamping mechanism to exert a clamping force on the brake wheel.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to brakes. Background Technology

[0002] When a traditional brake is applied, the braking pressure often increases to its maximum in a very short time, which can cause a large impact on the braking components, thereby damaging the brake, shortening its service life, and also affecting the lifespan of other mechanical components connected to the motor.

[0003] Some brakes, such as hydraulically driven brakes, may have a slow response speed during braking and release due to the characteristics of the hydraulic system. For example, when the YWZ series electro-hydraulic drum brake is used in lifting equipment, after the actuator motor is de-energized, the hydraulic oil pressure decreases slowly due to the inertia of the actuator motor rotor and impeller. The damping push rod and piston descend, and the brake closure is delayed, resulting in untimely braking and often causing hook slippage.

[0004] Meanwhile, some brakes have complex structures and numerous components, requiring regular inspection, maintenance, and upkeep. This includes checking brake pad wear, hydraulic fluid levels and leaks, and the reliability of electrical connections. Furthermore, repairs are relatively difficult and costly if a component malfunctions. For example, EHB systems still require routine maintenance and inspection of the hydraulic lines to ensure long-term reliability. Utility Model Content

[0005] The purpose of this invention is to provide a brake to solve the technical problems of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a brake, which is installed on the output end of a rotary drive device and is used to brake the drive end of the rotary drive device. The brake includes: a base 1.

[0007] Brake wheel 2 is fixedly installed at the output end of the rotary drive device;

[0008] Cylinder 3, which is mounted on base 1;

[0009] Brake mounting bracket 4 is mounted on base 1; the upper end of brake mounting bracket 4 is fixedly connected to a corner away from cylinder 3 by a first fixed shaft, and the remaining triangular parts of brake mounting bracket 4 are hinged.

[0010] The clamping mechanism 5 is connected to the middle end of the brake mounting bracket 4;

[0011] The clamping transmission mechanism 6 has one end connected to the telescopic end of the cylinder 3 and the other end connected to the first fixed shaft of the brake mounting bracket 4.

[0012] The compression spring mechanism 7 is used to generate a clamping force on the brake wheel 2 by the clamping mechanism 5;

[0013] In this process, the cylinder 3 extends and retracts upward, causing the clamping transmission mechanism 6 to rotate, which in turn causes the left side of the clamping mechanism 5 to press against the brake wheel 2. When the clamping transmission mechanism 6 rotates, it causes the right brake mounting bracket 4 to rotate to the left, and the right side of the clamping mechanism 5 presses against the brake wheel 2, thus completing the braking of the brake wheel 2. When the right brake mounting bracket 4 rotates to the left, the frame of the brake mounting bracket 4 presses against one side of the clamping spring mechanism 7, causing the clamping mechanism 5 to generate a clamping force on the brake wheel 2.

[0014] Furthermore, the clamping mechanism 5 is composed of a set of clamping arc-shaped plates 501, which are respectively hinged to the middle end of the brake mounting bracket 4.

[0015] Furthermore, the clamping transmission mechanism 6 includes:

[0016] A set of triangular connecting plates 601, the first connecting ends 602 of the two triangular connecting plates 601 are connected and hinged to the telescopic end of the cylinder 3; the second connecting ends 603 of the two triangular connecting plates 601 are fixedly fitted on the upper end of the brake mounting bracket 4 near a corner of the cylinder 3; the third connecting ends 604 of the two triangular connecting plates 601 are connected to each other through a second fixed shaft 605.

[0017] The connecting rod 606 has one end fixedly connected to the second fixed shaft 605 and the other end fixedly connected to the first fixed shaft;

[0018] The cylinder 3 extends and retracts upward, causing the triangular connecting plate 601 to rotate, which in turn causes the connecting rod 606 to move downward, causing the left brake mounting bracket 4 to rotate to the right, and causing the left clamping arc-shaped plate 501 to press against the brake wheel 2. When the triangular connecting plate 601 rotates, it causes the right brake mounting bracket 4 to rotate to the left, and the right clamping arc-shaped plate 501 presses against the brake wheel 2, thus completing the braking of the brake wheel 2.

[0019] Furthermore, the compression spring mechanism 7 includes:

[0020] The compression spring mounting frame 701 has one end mounted on the brake mounting bracket 4 on the side close to the cylinder 3;

[0021] A sliding mounting rod 702, one end of which is fixedly mounted on a brake mounting bracket 4 located at a corner of the upper end away from the cylinder 3;

[0022] Spring 703 is mounted on sliding mounting rod 702;

[0023] The pressure plate 704 has its upper end attached to the compression spring mounting frame 701, and its center is mounted on the other end of the sliding mounting rod 702.

[0024] When the right brake mounting bracket 4 is rotated to the left, the frame of the brake mounting bracket 4 presses against the pressure plate 704, which compresses the spring 703, causing the clamping mechanism 5 to exert a clamping force on the brake wheel 2.

[0025] In the above technical solution, the brake is installed on the output end of the rotary drive equipment. Through the linkage of components such as the cylinder, triangular connecting plate, and clamping arc-shaped plate, it can quickly and reliably brake the drive end of the drive mechanism, rapidly cutting off power in emergencies to prevent accidents. At the same time, the braking mechanism installed on the drum shaft can precisely control the speed of the drum and stop its rotation, providing double safety protection for the brake operation and reducing the risk of accidents. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the brake.

[0028] Figure 2 This is a state diagram for the application of brakes in rotary drive equipment.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base; 2. Brake wheel; 3. Cylinder; 4. Brake mounting bracket; 5. Clamping mechanism; 501. Clamping arc-shaped plate; 6. Clamping transmission mechanism; 601. Triangular connecting plate; 602. First connecting end; 603. Second connecting end; 604. Third connecting end; 605. Second fixed shaft; 606. Connecting rod; 7. Compression spring mechanism; 701. Compression spring mounting frame; 702. Sliding mounting rod; 703. Spring; 704. Pressure plate. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-2As shown, a brake is installed on the output end of a rotary drive device to brake the drive end of the device. The brake includes a base 1. Specifically, the base 1 serves as the fundamental support structure for the entire brake and is cast from high-strength metal material, possessing excellent rigidity and stability. Its bottom is designed with multiple mounting holes, allowing it to be securely fixed to the designated mounting position on the device using bolts and nuts, providing a reliable mounting platform for other components.

[0033] Brake wheel 2 is fixedly mounted on the output end of the rotary drive equipment. Specifically, brake wheel 2 is directly fixed to the output end of the rotary drive equipment and is typically made of a special alloy material with high wear resistance and strength. Its outer circumferential surface is finely machined to achieve high surface finish and dimensional accuracy, ensuring good contact with the clamping mechanism 5 and effective braking. Brake wheel 2 is tightly connected to the output shaft of the drive equipment via a key connection or interference fit, reliably transmitting torque and bearing the braking force applied by the clamping mechanism during braking.

[0034] Cylinder 3, mounted on base 1, is a key component for power transmission in the brake. It employs a standard pneumatic drive structure, consisting of a cylinder, piston, piston rod, and seals. The cylinder of cylinder 3 is bolted to base 1 to ensure stability during operation. The piston reciprocates linearly within the cylinder, and the input and output of compressed air pushes the piston rod to extend and retract, providing the power source for braking and releasing the brake.

[0035] A brake mounting bracket 4 is mounted on a base 1. The upper end of the brake mounting bracket 4, at a corner away from the cylinder 3, is fixedly connected via a first fixed shaft, while the remaining triangular sections are hinged. Specifically, the brake mounting bracket 4 is also mounted on the base 1, and its structural design is unique. The upper end of the brake mounting bracket 4, at a corner away from the cylinder 3, is fixedly connected via a first fixed shaft, providing a stable support point for the brake mounting bracket 4. The remaining triangular sections are hinged, which gives the brake mounting bracket 4 a certain degree of rotational freedom, allowing it to rotate flexibly under the drive of the clamping transmission mechanism 6, thereby realizing the clamping and releasing action on the brake wheel 2.

[0036] The clamping mechanism 5 is connected to the middle end of the brake mounting bracket 4;

[0037] Furthermore, the clamping mechanism 5 is composed of a set of clamping arc-shaped plates 501, which are respectively hinged to the middle end of the brake mounting bracket 4.

[0038] Specifically, the clamping mechanism 5 consists of a set of clamping arc-shaped plates 501, which are hinged to the middle end of the brake mounting frame 4. Each clamping arc-shaped plate 501 is designed according to the outer circumferential shape of the brake wheel 2, ensuring a good fit. It is made of a special composite material with a high coefficient of friction and wear resistance, generating sufficient friction when in contact with the brake wheel 2, thus achieving effective braking. When the brake mounting frame 4 rotates, it drives the clamping arc-shaped plates 501 to rotate around the hinge point, gradually pressing them against the brake wheel 2, ultimately achieving clamping and braking of the brake wheel 2.

[0039] The clamping transmission mechanism 6 has one end connected to the telescopic end of the cylinder 3 and the other end connected to the first fixed shaft of the brake mounting bracket 4.

[0040] Furthermore, the clamping transmission mechanism 6 includes:

[0041] A set of triangular connecting plates 601, the first connecting ends 602 of the two triangular connecting plates 601 are connected and hinged to the telescopic end of the cylinder 3; the second connecting ends 603 of the two triangular connecting plates 601 are fixedly fitted on the upper end of the brake mounting bracket 4 near a corner of the cylinder 3; the third connecting ends 604 of the two triangular connecting plates 601 are connected to each other through a second fixed shaft 605.

[0042] The connecting rod 606 has one end fixedly connected to the second fixed shaft 605 and the other end fixedly connected to the first fixed shaft;

[0043] The cylinder 3 extends and retracts upward, causing the triangular connecting plate 601 to rotate, which in turn causes the connecting rod 606 to move downward, causing the left brake mounting bracket 4 to rotate to the right, and causing the left clamping arc-shaped plate 501 to press against the brake wheel 2. When the triangular connecting plate 601 rotates, it causes the right brake mounting bracket 4 to rotate to the left, and the right clamping arc-shaped plate 501 presses against the brake wheel 2, thus completing the braking of the brake wheel 2.

[0044] Specifically, it includes a set of two triangular connecting plates 601, which play an important lever role in the transmission process of the brake. The first connecting end 602 of each triangular connecting plate 601 is hinged to the extension end of the cylinder 3 via a hinge shaft. This hinged connection ensures that the triangular connecting plate 601 can rotate flexibly when the cylinder 3 extends or retracts. The second connecting end 603 of the two triangular connecting plates 601 is fixedly fitted onto the upper end of the brake mounting bracket 4 near a corner of the cylinder 3, providing a stable fulcrum for the rotation of the triangular connecting plate 601. The third connecting end 604 of the two triangular connecting plates 601 is connected to each other via a second fixed shaft 605, so that the two triangular connecting plates 601 form a linkage structure, ensuring the synchronization and stability of the transmission.

[0045] One end of the connecting rod 606 is fixedly connected to the second fixed shaft 605 by welding or high-strength bolts, and the other end is fixedly connected to the first fixed shaft of the brake mounting bracket 4. When the cylinder 3 extends or retracts upward, it drives the triangular connecting plate 601 to rotate around the second connecting end 603. Through the transmission of the second fixed shaft 605 and the connecting rod 606, the motion is converted into a downward pulling force, thereby driving the left brake mounting bracket 4 to rotate to the right. At the same time, the rotation of the triangular connecting plate 601 will also drive the right brake mounting bracket 4 to rotate to the left through mechanical linkage, so that the clamping arc-shaped plates 501 on both sides simultaneously press against the brake wheel 2, thereby braking the brake wheel 2.

[0046] The compression spring mechanism 7 is used to generate a clamping force on the brake wheel 2 by the clamping mechanism 5;

[0047] Furthermore, the compression spring mechanism 7 includes:

[0048] The compression spring mounting frame 701 has one end mounted on the brake mounting bracket 4 on the side closest to the cylinder 3; the compression spring mounting frame 701 provides mounting support for the entire compression spring mechanism 7.

[0049] The sliding mounting rod 702 has one end fixedly mounted on the brake mounting bracket 4 at a corner away from the cylinder 3 at the upper end; its surface is finely processed and has good smoothness and straightness to ensure that the pressure plate 704 can slide smoothly on it.

[0050] Spring 703 is mounted on sliding mounting rod 702; it is made of high-strength spring material with a suitable elastic coefficient and can generate sufficient elastic force when compressed.

[0051] The pressure plate 704 has its upper end attached to the clamping spring mounting frame 701, and its center is mounted on the other end of the sliding mounting rod 702. When the right brake mounting bracket 4 is rotated to the left, the frame of the brake mounting bracket 4 presses the pressure plate 704, which compresses the spring 703, causing the clamping mechanism 5 to exert a clamping force on the brake wheel 2.

[0052] Specifically, when the right brake mounting bracket 4 rotates to the left, the frame of the brake mounting bracket 4 gradually presses against the pressure plate 704, pushing the pressure plate 704 downward along the sliding mounting rod 702, thereby compressing the spring 703. The elastic force generated by the compressed spring 703 acts on the brake mounting bracket 4 and the clamping mechanism 5 through the pressure plate 704, so that the clamping mechanism 5 generates a continuous and stable clamping force on the brake wheel 2, enhancing the braking effect.

[0053] In this process, the cylinder 3 extends and retracts upward, causing the clamping transmission mechanism 6 to rotate, which in turn causes the left side of the clamping mechanism 5 to press against the brake wheel 2. When the clamping transmission mechanism 6 rotates, it causes the right brake mounting bracket 4 to rotate to the left, and the right side of the clamping mechanism 5 presses against the brake wheel 2, thus completing the braking of the brake wheel 2. When the right brake mounting bracket 4 rotates to the left, the frame of the brake mounting bracket 4 presses against one side of the clamping spring mechanism 7, causing the clamping mechanism 5 to generate a clamping force on the brake wheel 2.

[0054] Its working process is as follows: When braking of the rotary drive equipment is required, the control system inputs compressed air into cylinder 3, and the piston rod of cylinder 3 extends upward. The extension and retraction of the piston rod drives the first connecting end 602 of the triangular connecting plate 601 hinged to it to move upward. Since the second connecting end 603 of the triangular connecting plate 601 is fixed on the brake mounting bracket 4, the triangular connecting plate 601 will rotate around the second connecting end 603. During the rotation of the triangular connecting plate 601, its third connecting end 604 drives the connecting rod 606 to move downward through the second fixed shaft 605, thereby pulling the left brake mounting bracket 4 to rotate to the right around the first fixed shaft, so that the left clamping arc-shaped plate 501 gradually presses against the brake wheel 2.

[0055] Simultaneously, the rotation of the triangular connecting plate 601, through mechanical linkage, causes the right brake mounting bracket 4 to rotate to the left, and the right clamping arc-shaped plate 501 also presses against the brake wheel 2. During the rotation of the right brake mounting bracket 4 to the left, its frame gradually presses against the pressure plate 704 of the pressure spring mechanism 7, compressing the spring 703 and causing it to generate elastic force. This elastic force acts on the brake mounting bracket 4 and the clamping mechanism 5 through the pressure plate 704, further increasing the clamping force of the clamping arc-shaped plate 501 on the brake wheel 2, thereby generating sufficient friction to effectively brake the brake wheel 2, thus stopping the rotary drive equipment from rotating.

[0056] When the brake needs to be released, the control system stops supplying compressed air to cylinder 3 and expels the compressed air from cylinder 3. Under the action of the return spring (if present) inside cylinder 3 or an external reset device, the piston rod retracts downward, causing the triangular connecting plate 601 to rotate in the opposite direction. The reverse rotation of the triangular connecting plate 601, through the connecting rod 606 and the brake mounting bracket 4, causes the clamping arc-shaped plates 501 on both sides to gradually move away from the brake wheel 2. At the same time, the spring 703 gradually returns to its original state, releasing its elastic force. The brake completes the release action, and the rotary drive equipment can resume normal operation.

[0057] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A brake, characterized in that, The brake is installed on the output end of the rotary drive equipment and is used to brake the drive end of the rotary drive equipment. The brake includes: a base (1). Brake wheel (2), which is fixedly installed at the output end of the rotary drive device; Cylinder (3), which is mounted on base (1); Brake mounting bracket (4) is mounted on base (1); the upper end of the brake mounting bracket (4) is fixedly connected to a corner away from the cylinder (3) by a first fixed shaft, and the remaining triangular parts of the brake mounting bracket (4) are hinged. The clamping mechanism (5) is connected to the middle end of the brake mounting bracket (4); The clamping transmission mechanism (6) has one end connected to the telescopic end of the cylinder (3) and the other end connected to the first fixed shaft of the brake mounting bracket (4); A compression spring mechanism (7) is used to generate a clamping force on the brake wheel (2) by the clamping mechanism (5); Among them, the cylinder (3) extends and retracts upward to drive the clamping transmission mechanism (6) to rotate, causing the left side of the clamping mechanism (5) to press against the brake wheel (2); when the clamping transmission mechanism (6) rotates, it drives the right brake mounting bracket (4) to rotate to the left, and the right side of the clamping mechanism (5) presses against the brake wheel (2), thus completing the braking of the brake wheel (2); when the right brake mounting bracket (4) rotates to the left, the frame of the brake mounting bracket (4) presses against one side of the clamping spring mechanism (7), causing the clamping mechanism (5) to generate a clamping force on the brake wheel (2).

2. The brake according to claim 1, characterized in that, The clamping mechanism (5) consists of a set of clamping arc-shaped plates (501), which are respectively hinged to the middle end of the brake mounting bracket (4).

3. The brake according to claim 2, characterized in that, The clamping transmission mechanism (6) includes: A set of triangular connecting plates (601), the first connecting ends (602) of the two triangular connecting plates (601) are connected and hinged to the telescopic end of the cylinder (3); the second connecting ends (603) of the two triangular connecting plates (601) are fixedly fitted on the upper end of the brake mounting bracket (4) near a corner of the cylinder (3); the third connecting ends (604) of the two triangular connecting plates (601) are connected to each other through a second fixed shaft (605); The connecting rod (606) has one end fixedly connected to the second fixed shaft (605) and the other end fixedly connected to the first fixed shaft; The cylinder (3) extends upwards, causing the triangular connecting plate (601) to rotate, which in turn causes the connecting rod (606) to move downwards, causing the left brake mounting bracket (4) to rotate to the right, and causing the left clamping arc-shaped piece (501) to press against the brake wheel (2); when the triangular connecting plate (601) rotates, it causes the right brake mounting bracket (4) to rotate to the left, and the right clamping arc-shaped piece (501) presses against the brake wheel (2), thus completing the braking of the brake wheel (2).

4. The brake according to claim 3, characterized in that, The compression spring mechanism (7) includes: A compression spring mounting frame (701) is mounted at one end on a brake mounting bracket (4) on the side close to the cylinder (3); A sliding mounting rod (702) has one end fixedly mounted on a brake mounting bracket (4) located at a corner of the upper end away from the cylinder (3); A spring (703) is fitted onto a sliding mounting rod (702); The pressure plate (704) has its upper end attached to the compression spring mounting frame (701), and its center is mounted on the other end of the sliding mounting rod (702); When the right brake mounting bracket (4) is rotated to the left, the frame of the brake mounting bracket (4) presses against the pressure plate (704), which compresses the spring (703) and causes the clamping mechanism (5) to exert a clamping force on the brake wheel (2).

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