High-precision stranding machine brake device

Abstract

The utility model discloses high -precision stranding machine brake device belongs to stranding machine brake device technical field, and it includes servo motor, and servo motor output fixedly connected with the connection protection structure, one side wall center of connection protection structure is equipped with flange, and the inside center of flange is equipped with the connection rotation structure, and the front end of connection rotation structure surface is equipped with brake structure, in addition, the utility model discloses, and the elastic pad is closely attached first brake disc and produces frictional resistance through hydraulic telescopic link, and the synchronous compression is extended through compression spring along with telescopic link, and the stable additional pressure is formed through the elastic potential superposition, and the evenness and stability of brake friction force are strengthened, and can buffer the instantaneous pressure fluctuation of hydraulic system, avoid the brake precision deviation or component wear and tear caused by rigid impact, realize the accurate adjustable of brake intensity and the smooth controllable of brake process, satisfy the strict demand of high -precision stranding machine to brake response speed and speed control error.

Description

Technical Field

[0001] This utility model belongs to the technical field of stranded wire machine braking devices, specifically a high-precision stranded wire machine braking device. Background Technology

[0002] In high-end manufacturing fields such as wire and cable, aerospace and precision electronics, high-precision stranding machines are key equipment for achieving efficient stranding of materials such as metal wires and fiber filaments. Their core function is to form stranded products with specific pitch, strength and conductivity by synchronously rotating, pulling and stranding multiple strands of wire. The braking device, as the control center of the stranding machine, directly determines the operating accuracy, safety and product quality stability of the equipment.

[0003] The existing high-precision stranding machine braking devices have the following main shortcomings:

[0004] Existing high-precision stranding machine braking devices rely on rigid contact friction plates, which are prone to wear leading to increased braking clearance and delayed braking response. Uneven friction distribution can also cause excessive stranding pitch error, failing to meet the consistency requirements of high-end applications. They often use sliding bearings or ordinary couplings, resulting in a high proportion of sliding friction during power transmission, significant energy loss, and increased equipment operating energy consumption. At the same time, external dust and oil can easily penetrate core components such as bearings and brake discs, accelerating wear. This results in a short mean time between failures (MTBF), frequent maintenance cycles, and high downtime maintenance costs. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a high-precision stranded wire braking device, which solves the problem that the existing technology relies on the rigid contact of friction plates, which is prone to wear and thus increases the braking gap, causing a delay in braking response. Furthermore, uneven friction force distribution can easily lead to excessive stranded wire pitch error, which cannot meet the requirements of high-end fields for stranded wire consistency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision stranding machine braking device, including a servo motor, the output end of which is fixedly connected to a connecting protection structure, a flange is provided at the center of one side wall of the connecting protection structure, a connecting rotation structure is provided at the center of the inside of the flange, and a braking structure is provided at the front end face of the connecting rotation structure.

[0007] The connection protection structure includes a cylinder, which is set on the output end of the servo motor. A plum blossom coupling is fixedly connected to one end of the cylinder. A connecting frame is provided at the center of the front end face of the servo motor. Filter screens are provided at the center of both sides of the connecting frame. The connecting frame and the two filter screens are all inclined.

[0008] As a further embodiment of this utility model: the connecting rotation structure includes a bearing, the bearing is sleeved at the center of the inner side wall of the cylinder, and a rotating shaft is sleeved at the front of the center of the outer side wall of the bearing.

[0009] As a further embodiment of this utility model: a rotating frame is provided at the center of the outer wall of the rotating shaft, a sealing gasket is provided at the center of the outer wall of the rotating frame, the flange is provided on the outer wall of the rotating frame, and the braking structure is sleeved on the front of the center of the outer wall of the rotating shaft.

[0010] As a further embodiment of this utility model: the braking structure includes a first brake disc disposed on the front end face of the connecting rotating structure, a second brake disc disposed on the outer side wall of the first brake disc, and four connecting plates arranged in a ring at the center of the rear end face of the first brake disc.

[0011] As a further embodiment of this utility model: the front ends of the four connecting plates are fixedly connected to the outer side wall of the second brake disc, and a groove is provided at the center of one side wall of each of the four connecting plates.

[0012] As a further embodiment of this utility model: four hydraulic telescopic rods are arranged in a ring on the inner sidewall of the second brake disc, and a compression spring is sleeved on the outer side of each of the four hydraulic telescopic rods. An elastic pad is provided at one end of each of the four hydraulic telescopic rods, and one end of each of the four elastic pads is attached to the outer sidewall of the first brake disc.

[0013] As a further embodiment of this utility model: a stranding mechanism is provided at the center of the front end face of the braking structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, during braking, the hydraulic telescopic rod provides basic thrust, causing the elastic pad to tightly adhere to the first brake disc and generate frictional resistance. Simultaneously, the compression spring sleeved on the outside of the hydraulic telescopic rod extends and compresses synchronously with the extension rod, forming a stable additional pressure through the superposition of elastic potential energy. This not only enhances the uniformity and stability of braking friction but also buffers instantaneous pressure fluctuations in the hydraulic system, avoiding braking accuracy deviations or component wear caused by rigid impacts. The synergistic mechanism of dynamic hydraulic drive and passive spring buffering achieves precise adjustment of braking intensity and smooth control of the braking process, meeting the stringent requirements of high-precision stranding machines for braking response speed and speed control error.

[0016] 2. This utility model uses a high-precision rolling bearing to connect the cylinder and the shaft, reducing energy loss during power transmission. Simultaneously, the rigid connection between the rotating frame and the flange, combined with the radial positioning effect of the bearing, ensures that the shaft's rotation axis is highly aligned with the servo motor's output axis, avoiding vibration loss and braking deviation caused by eccentric rotation. An inclined filter and a plum blossom coupling form a three-in-one protection system for heat dissipation, dust prevention, and vibration reduction, increasing ventilation area and improving heat dissipation efficiency while reducing dust adhesion. The plum blossom coupling uses elastic deformation to buffer torque fluctuations, reducing the impact of vibration on subsequent structures. The combination of the sealing gasket and the connecting frame forms a physical barrier, preventing oil and moisture from intruding into critical rotating components. While ensuring efficient power transmission, this significantly extends the service life of core components such as bearings and brake discs, reducing equipment maintenance costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model. Figure 2 ;

[0020] Figure 4 This is a three-dimensional structural diagram of the braking structure of this utility model.

[0021] In the diagram: 1. Servo motor; 2. Connecting and protective structure; 201. Connecting frame; 202. Filter screen; 203. Plum blossom coupling; 204. Cylindrical shaft; 3. Flange; 4. Connecting and rotating structure; 401. Bearing; 402. Sealing gasket; 403. Rotating frame; 404. Rotating shaft; 5. Braking structure; 501. First brake disc; 502. Second brake disc; 503. Connecting plate; 504. Groove; 505. Hydraulic telescopic rod; 506. Compression spring; 507. Elastic pad; 6. Twisting machine structure. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figures 1-4 As shown, the present invention provides the following technical solution:

[0024] A high-precision stranding machine braking device includes:

[0025] Servo motor 1, the output end of servo motor 1 is fixedly connected to connection protection structure 2, a flange 3 is provided at the center of one side wall of connection protection structure 2, a connecting rotation structure 4 is provided at the center inside flange 3, a braking structure 5 is provided at the front end face of connecting rotation structure 4, and a stranding machine structure 6 is provided at the center of the front end face of braking structure 5.

[0026] The connecting protection structure 2 includes a cylinder 204, which is mounted on the output end of the servo motor 1. A plum blossom coupling 203 is fixedly connected to one end of the cylinder 204. A connecting frame 201 is provided at the center of the front end face of the servo motor 1. Filter screens 202 are provided at the center of both sides of the connecting frame 201. The connecting frame 201 and the two filter screens 202 are inclined. During power transmission, the connecting frame 201 provides support and protection for the connection between the output end of the servo motor 1 and the cylinder 204. The inclined filter screens 202 can ventilate and dissipate heat inside the connecting frame 201 and near the motor output end when the equipment is running, while blocking external dust and impurities from entering key connecting components, preventing impurities from affecting rotational accuracy or causing component wear. The plum blossom coupling 203 buffers the fluctuation of the output torque of the servo motor 1 through its own elastic deformation, reducing vibration and impact during power transmission, and protecting the subsequently connected rotating shaft 404 and braking structure 5.

[0027] The connecting rotating structure 4 includes a bearing 401, which is sleeved at the center of the inner wall of the cylinder 204. A rotating shaft 404 is sleeved at the front of the center of the outer wall of the bearing 401. A rotating frame 403 is provided at the center of the outer wall of the rotating shaft 404. A sealing gasket 402 is provided at the center of the outer wall of the rotating frame 403. A flange 3 is set on the outer wall of the rotating frame 403. A braking structure 5 is sleeved at the front of the center of the outer wall of the rotating shaft 404. The cylinder 204 passes through the bearing 401 of the connecting rotating structure 4, driving the rotating shaft 404 sleeved on the outer side of the bearing 401 to rotate synchronously. Since the first brake disc 501 of the braking structure 5 is sleeved on the rotating shaft 404, the rotation of the rotating shaft 404 will directly drive the first brake disc 501 to rotate. Then, through the connecting plate 503, the second brake disc 502 will be driven to rotate together with the rotating shaft 404. Finally, the power is transmitted to the stranding machine structure 6 connected to the front end of the braking structure 5 to realize the normal operation of the stranding machine.

[0028] The braking structure 5 includes a first brake disc 501 disposed on the front end face of the connecting rotating structure 4, a second brake disc 502 disposed on the outer side wall of the first brake disc 501, four connecting plates 503 arranged in a ring at the center of the rear end face of the first brake disc 501, the front ends of the four connecting plates 503 being fixedly connected to the outer side wall of the second brake disc 502, and a groove 504 provided at the center of one side wall of each of the four connecting plates 503, and four hydraulic telescopic rods 505 arranged in a ring on the inner side wall of the second brake disc 502, each of the four hydraulic telescopic rods 505 being fitted with a compression spring 506 on the outer side, and an elastic pad 507 provided at one end of each of the four hydraulic telescopic rods 505, with one end of each of the four elastic pads 507 being attached to the outer side wall of the first brake disc 501.

[0029] The control device activates the four hydraulic telescopic rods 505 arranged in a ring on the inner wall of the second brake disc 502. Driven by hydraulic pressure, the hydraulic telescopic rods 505 extend inwards. As they extend, the elastic pads 507 at their ends move closer to the first brake disc 501 under the thrust of the telescopic rods. Since the first brake disc 501 rotates with the shaft 404, and the second brake disc 502 is connected to the first brake disc 501 via the connecting plate 503 and rotates synchronously, the thrust of the hydraulic telescopic rods 505 causes the elastic pads 507 to fit tightly against the first brake disc 501. On the outer side wall, friction is generated between the elastic pad 507 and the first brake disc 501, forming braking resistance. The compression spring 506 sleeved on the outer side of the hydraulic telescopic rod 505 is compressed when the hydraulic telescopic rod 505 is extended, storing elastic potential energy. The elastic force of the compression spring 506 will assist the hydraulic telescopic rod 505 in applying pressure to the elastic pad 507, enhancing the tightness of the fit between the elastic pad 507 and the first brake disc 501, ensuring stable braking friction. At the same time, the compression spring 506 can buffer the instantaneous fluctuation of the hydraulic pressure and avoid rigid impact caused by excessive braking pressure.

[0030] When the braking demand is released, the hydraulic telescopic rod 505 retracts under the action of hydraulic retraction, the elastic pad 507 separates from the outer wall of the first brake disc 501, and the compression spring 506 returns to its original state. At this time, the friction between the first brake disc 501 and the second brake disc 502 disappears, and the rotating shaft 404 can rotate freely again with the servo motor 1. The braking state is released, and the stranding machine structure 6 resumes normal operation. The four connecting plates 503 not only serve to connect the first brake disc 501 and the second brake disc 502, but the groove 504 on one side wall can reduce the overall weight of the structure. At the same time, it provides space for the movement of the hydraulic telescopic rod 505 and the elastic pad 507, avoiding interference between the connecting plate 503 and the braking components. The elastic pad 507 is made of elastic material, which can increase the friction coefficient with the first brake disc 501 and reduce rigid collisions through its own deformation when braking, thereby reducing braking noise and component wear and extending the service life of the braking structure 5.

[0031] The working principle of this utility model is as follows: A servo motor 1 serves as the core power source. Upon receiving an external control signal, it starts and generates rotational torque at its output. This torque is transmitted through a cylinder 204 in the fixedly connected protective structure 2. The cylinder 204 is rigidly connected to the output of the servo motor 1, ensuring lossless torque transmission. The cylinder 204 passes through the inner side of the bearing 401 in the rotating structure 4. Since the inner ring of the bearing 401 is tightly fitted with the cylinder 204, and the outer ring is fixedly connected to the inner wall of the rotating shaft 404, the rotation of the cylinder 204 will cause the outer ring of the bearing 401 and the rotating shaft 404 to rotate synchronously. At this time, the rotating frame 403 rotates accordingly. The rotating shaft 404 rotates together, and the flange 3, through its fixed connection with the rotating frame 403, plays a radial positioning role for the rotating structure, ensuring the coaxiality of the rotating shaft 404. The first brake disc 501 of the braking structure 5 is sleeved on the front of the outer wall of the rotating shaft 404 and rotates synchronously with the rotating shaft 404. The first brake disc 501 is fixedly connected to the second brake disc 502 through four ring-arranged connecting plates 503. Therefore, the second brake disc 502 also rotates together with the rotating shaft 404. Finally, the rotational torque of the rotating shaft 404 is transmitted to the stranding machine structure 6 connected to the front end through the braking structure 5, driving the stranding machine to complete the stranding operation.

[0032] During power transmission, the connecting frame 201 supports and protects the connection between the output end of the servo motor 1 and the cylinder 204. The inclined filter screen 202 provides ventilation and heat dissipation for the inside of the connecting frame 201 and the vicinity of the motor output end during equipment operation, while preventing external dust and impurities from entering key connecting components, thus avoiding impurities affecting rotational accuracy or causing component wear. The plum blossom coupling 203 buffers the fluctuation of the output torque of the servo motor 1 through its own elastic deformation, reducing vibration and impact during power transmission and protecting the subsequently connected rotating shaft 404 and braking structure 5. The bearing 401 adopts a high-precision rolling bearing 401, which is connected to the cylinder 204 through the inner ring. 04. The interference fit between the outer ring and the rotating shaft 404 converts the relative sliding between the cylinder 204 and the rotating shaft 404 into rolling friction, greatly reducing power transmission loss and ensuring efficient torque transmission. The rigid connection between the rotating frame 403 and the flange 3, together with the radial positioning effect of the bearing 401, ensures that the rotation of the rotating shaft 404 is highly aligned with the axis of the output end of the servo motor 1, avoiding vibration or braking deviation caused by eccentric rotation. The sealing gasket 402 on the outer wall of the rotating frame 403 is tightly attached to the inner side of the flange 3 to form an annular sealing structure, preventing external oil and moisture from entering the bearing 401 and preventing grease leakage from the bearing 401, thus ensuring long-term stable lubrication of the bearing 401.

[0033] When the stranding machine structure 6 is operating normally, the four hydraulic telescopic rods 505 inside the second brake disc 502 are in a retracted state, and the elastic pads 507 at their ends are separated from the outer wall of the first brake disc 501. The compression spring 506 is in a naturally extended state. At this time, the first brake disc 501 and the second brake disc 502 are rigidly connected only through the connecting plate 503 and rotate freely with the rotating shaft 404 without braking resistance. When braking is required, the external control system sends a signal to the braking structure 5, and the four hydraulic telescopic rods 505 inside the second brake disc 502 extend inward synchronously under the drive of hydraulic oil. The elastic pads 507 are in contact with each other and generate friction. The elastic pads 507 adopt a high friction system. As the wear-resistant material moves with the hydraulic telescopic rod 505, it gradually adheres to the outer wall of the first brake disc 501. Since the first brake disc 501 is rotating, sliding friction is immediately generated between the elastic pad 507 and the brake disc, forming a braking resistance that hinders rotation. When the hydraulic telescopic rod 505 extends, the compression spring 506 sleeved on the outside is compressed synchronously, storing elastic potential energy. The elastic force of the compression spring 506 is superimposed on the hydraulic thrust, increasing the positive pressure of the elastic pad 507 on the first brake disc 501, thereby enhancing the friction. At the same time, the compression spring 506 can buffer the pressure fluctuations of the hydraulic system, avoid excessive instantaneous pressure leading to braking shock, and ensure stable output of friction.

[0034] Four hydraulic telescopic rods 505 are symmetrically distributed in a ring, and the elastic pads 507 are evenly fitted against the outer wall of the first brake disc 501. This ensures that the first brake disc 501 is under balanced force during braking, without radial eccentricity, preventing the shaft 404 from bending or vibrating due to unilateral force, thus ensuring braking accuracy. By adjusting the extension length of the hydraulic telescopic rods 505, the normal pressure of the elastic pads 507 on the first brake disc 501 can be changed, thereby controlling the magnitude of friction. At low pressure, the friction is small, achieving deceleration of the stranding machine; at high pressure, the friction increases, achieving rapid stopping or emergency braking. This design meets the requirements of high-precision stranding machines for braking smoothness and accuracy. After the braking demand is released, the hydraulic telescopic rods 505 return to their original position within the hydraulic system. Under the action of the return oil, the elastic pad 507 contracts and separates from the outer wall of the first brake disc 501. The compression spring 506 releases its potential energy and returns to its original state. At this time, the frictional resistance between the first brake disc 501 and the second brake disc 502 disappears, and the rotating shaft 404 rotates freely again with the servo motor 1. The stranding machine resumes normal operation. The groove 504 on one side wall of the connecting plate 503 can reduce the overall weight of the braking structure 5 and reduce rotational inertia. At the same time, it reserves space for the movement of the hydraulic telescopic rod 505 and the elastic pad 507, avoiding interference between the connecting plate 503 and the braking components. The elastic deformation characteristics of the elastic pad 507 can reduce rigid collisions during braking contact, reduce noise and reduce component wear, and extend service life.

[0035] Furthermore, the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0036] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A high-precision stranding machine braking device, characterized in that: Includes a servo motor (1), the output end of which is fixedly connected to a connection protection structure (2), a flange (3) is provided at the center of one side wall of the connection protection structure (2), a connection rotation structure (4) is provided at the center inside the flange (3), and a braking structure (5) is provided on the front end face of the connection rotation structure (4). The connection protection structure (2) includes a cylinder (204), which is set on the output end of the servo motor (1). A plum blossom coupling (203) is fixedly connected to one end of the cylinder (204). A connecting frame (201) is provided at the center of the front end face of the servo motor (1). A filter screen (202) is provided at the center of both sides of the connecting frame (201). The connecting frame (201) and the two filter screens (202) are all inclined.

2. The high-precision stranded wire braking device according to claim 1, characterized in that: The connecting rotating structure (4) includes a bearing (401), which is sleeved at the center of the inner wall of the cylinder (204), and a rotating shaft (404) is sleeved at the front of the center of the outer wall of the bearing (401).

3. The high-precision stranded wire braking device according to claim 2, characterized in that: A rotating frame (403) is provided at the center of the outer wall of the rotating shaft (404), a sealing gasket (402) is provided at the center of the outer wall of the rotating frame (403), the flange (3) is provided on the outer wall of the rotating frame (403), and the braking structure (5) is sleeved on the front of the center of the outer wall of the rotating shaft (404).

4. The high-precision stranded wire braking device according to claim 1, characterized in that: The braking structure (5) includes a first brake disc (501) disposed on the front end face of the connecting rotating structure (4), a second brake disc (502) disposed on the outer side wall of the first brake disc (501), and four connecting plates (503) arranged in a ring at the center of the rear end face of the first brake disc (501).

5. The high-precision stranding machine braking device according to claim 4, characterized in that: The front ends of the four connecting plates (503) are fixedly connected to the outer side wall of the second brake disc (502), and a groove (504) is provided at the center of one side wall of each of the four connecting plates (503).

6. The high-precision stranded wire braking device according to claim 4, characterized in that: The inner wall of the second brake disc (502) is provided with four hydraulic telescopic rods (505) arranged in a ring. Each of the four hydraulic telescopic rods (505) is fitted with a compression spring (506) on its outer side. Each of the four hydraulic telescopic rods (505) is provided with an elastic pad (507) at one end. Each of the four elastic pads (507) is attached to the outer wall of the first brake disc (501) at one end.

7. The high-precision stranded wire machine braking device according to claim 1, characterized in that: The braking structure (5) has a stranding mechanism (6) at the center of its front end face.

Images