Electric synchronous band-type brake mechanism
By using the synchronous wheel assembly and gear structure of the electric synchronous brake mechanism, the synchronization and energy consumption problems of the injection molding machine brake mechanism are solved, achieving high-precision and low-energy brake control.
Patent Information
- Application Number
- CN202520470904.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing injection molding machine brake mechanism has a complex structure, low synchronization, high energy consumption, and requires two sets of drive equipment for control, resulting in poor control accuracy and energy loss.
An electric synchronous brake mechanism is adopted, which realizes the synchronous action of four sets of brake components through a synchronous wheel assembly. It can be controlled by a single drive unit, and the combination of gear structure improves control accuracy and simplifies the structure.
It achieves synchronous movement of four sets of brake components, reduces energy consumption, improves control accuracy and response speed, simplifies structural layout, and facilitates maintenance.
Smart Images
Figure CN223864250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a brake mechanism, and more specifically, to an electric synchronous brake mechanism. Background Technology
[0002] The clamping brake mechanism is a crucial component of the clamping mechanism in a composite two-platen injection molding machine, playing a vital role in the mold closing process. During mold closing, the clamping brake mechanism engages the tie rod, maintaining the positional relationship between the moving platen and the tie rod, which is a prerequisite for generating clamping force. The reliability of the clamping brake is a critical consideration for the clamping brake mechanism. If the moving platen is pushed away by the mold cavity pressure, severe flash will occur in the plastic product, seriously affecting its quality.
[0003] Currently, the most commonly used structure is the single-cylinder double-rod linkage brake structure. This structure uses a single cylinder and a synchronizing linkage to control two pairs of gates, allowing them to open and close synchronously. A single injection molding machine requires two single-cylinder double-rod linkage brake structures to control the opening and closing of four gates. A hydraulic system is commonly used to synchronize the two cylinders, but in practice, it has been found that the movements of the two cylinders are not completely synchronized, and the poor accuracy results in a time lag between the opening and closing of the two sets of gates. The machine needs to account for this asynchrony during the entire operating cycle, adding a certain waiting time to ensure all gates complete their actions. Therefore, the single-cylinder double-rod linkage brake structure suffers from asynchronous movement on both sides, and the hydraulic drive also presents environmental problems such as oil leakage and energy loss.
[0004] For example, Chinese Patent Publication No. CN214773802U, published on November 19, 2021, is entitled "A Brake Mechanism for an Injection Molding Machine," which includes a brake template and two sets of brake assemblies. Each set of brake assemblies includes an upper brake nut and a lower brake nut. The upper brake nut is composed of a first upper brake block and a first lower brake block, and the lower brake nut is composed of a second upper brake block and a first lower brake block. A synchronous linkage rotation mechanism is provided between the first lower brake block and the second upper brake block. The synchronous linkage rotation mechanism includes a synchronous seat, an upper synchronous connecting rod, and a lower synchronous connecting rod. The synchronous seat is located between the first lower brake block and the second upper brake block. The first lower brake block and the synchronous seat are connected through the upper synchronous connecting rod, which is rotatably connected to both the first lower brake block and the synchronous seat. The second upper brake block and the synchronous seat are connected through the lower synchronous connecting rod, which is also rotatably connected to both the second upper brake block and the synchronous seat. The synchronous seat is rotatably mounted on the brake template by a servo motor. The application has a simple structure, which effectively reduces production costs. However, its overall structure is still somewhat lacking. It requires two sets of control motors to start, and each time it works, the two sets of motors must start synchronously, which requires a complex control program. In addition, the use of drive equipment increases energy consumption to some extent; and its use of swing propulsion will reduce the effective propulsion. Utility Model Content
[0005] This invention overcomes the problems of complex structure, low synchronization, and high energy consumption of existing injection molding machine brake mechanisms, and provides an electric synchronous brake mechanism. This solution simplifies the structure of the injection molding machine brake mechanism and only requires one set of drive equipment for control, which not only provides high control accuracy but also effectively reduces energy consumption.
[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an electric synchronous brake mechanism, including a brake template and two sets of brake assemblies disposed on the brake template. The brake template is provided with a synchronous wheel set connected to the brake assemblies. One end of the synchronous wheel set is provided with a first transmission wheel and a second transmission wheel, and the other end is provided with a first synchronous wheel and a second synchronous wheel. The first transmission wheel and the second transmission wheel mesh, and the first synchronous wheel and the second synchronous wheel are respectively connected to the brake assemblies through transmission belts. In this solution, the brake assemblies achieve synchronous action through the synchronous wheel set. The first transmission wheel and the second transmission wheel can drive the first synchronous wheel and the second synchronous wheel to rotate, thereby driving the four sets of brake assemblies on the brake template to move through the transmission belt. Since the first transmission wheel and the second transmission wheel are meshed together, only one drive device is needed to drive them; this reduces the number of drive devices, ensures the synchronous movement of the brake mechanism, and greatly simplifies the structural layout on the brake template. At the same time, the use of a gear structure control results in higher control precision and more accurate action of the brake template.
[0007] Preferably, the first drive wheel and the first synchronous wheel are coaxially arranged, and the second drive wheel and the second synchronous wheel are coaxially arranged. This coaxial arrangement of the first drive wheel and the first synchronous wheel greatly simplifies the structural complexity and the structural arrangement on the brake template, while also ensuring the synchronicity of the movement of the first drive wheel and the first synchronous wheel.
[0008] Preferably, the brake assembly includes two sets of matching inner and outer brake plates. The outer brake plates are connected via guide rods and located at both ends of the guide rods. The inner brake plates are slidably connected to the guide rods, and the outer brake plates are fixed to the brake template. In this design, the outer brake plates serve as fixed components, and the inner brake plates serve as moving components, enabling the brake assembly to close and open. The outer brake plates are fixed at both ends of the guide rods, ensuring a fixed relative position between the outer brake plates. Simultaneously, the guide rods also provide guidance for the inner brake plates, preventing them from shifting during movement.
[0009] Preferably, the brake template is further provided with a synchronization component, which includes a synchronization rack fixedly connected to the inner brake plate and a third transmission wheel meshing with the synchronization rack. The synchronization racks corresponding to the two sets of inner brake plates are respectively meshed on both sides of the third transmission wheel. The inner brake plates move through the movement of the synchronization racks and the third transmission wheel. In one set of brake assemblies, the two inner brake plates are located on both sides of the brake template, and the third transmission wheel is located in the middle of the two inner brake plates. Thus, the synchronization racks on the two inner brake plates are arranged on both sides of the third transmission wheel to ensure the synchronous movement of the two inner brake plates and to perform the closing or opening action simultaneously.
[0010] Preferably, the brake template is provided with a brake plate fixing block, which is fixedly connected to the outer brake plate. The brake plate fixing block is used to fix the outer brake plate and prevent the outer brake plate from shifting under the action of closing force.
[0011] Preferably, the brake assembly includes two sets of compatible inner and outer brake plates. The inner brake plate is fixed to the brake template, and the outer brake plate is slidably arranged on the brake template relative to the inner brake plate. In this design, the inner brake plate acts as a fixed component, and the outer brake plate acts as a moving component, which can also realize the opening and closing actions of the brake assembly; therefore, the inner brake plate needs to be slidably arranged relative to the outer brake plate.
[0012] Preferably, the brake template is further provided with a synchronization component, which includes a synchronization rack fixedly connected to the outer brake plate and a third transmission wheel meshing with the synchronization rack. The synchronization racks corresponding to the two sets of outer brake plates are respectively meshed on both sides of the third transmission wheel, and the synchronization racks are fixedly connected to the outer brake plates through guide rods. The synchronization racks on the two outer brake plates mesh with both sides of the third transmission wheel, and synchronous movement is achieved by the rotation of the third transmission wheel.
[0013] Preferably, the brake template is further provided with a brake plate fixing block, which is fixedly connected to the inner brake plate. The brake plate fixing block is used to fix the inner brake plate and prevent the inner brake plate from shifting under the action of closing force.
[0014] Preferably, the brake template is further provided with a drive device, which includes an output wheel that meshes with either the first transmission wheel or the second transmission wheel. The drive device provides power for the entire brake mechanism; only one drive device is needed to drive either the first or second transmission wheel to achieve the entire brake mechanism's operation, greatly simplifying the structural layout of the moving template on the injection molding machine.
[0015] Compared with the prior art, the beneficial effects of this utility model are: (1) It realizes the synchronous opening and closing action of four sets of brake components on both sides by one drive device, avoiding the asynchronous action of the brake due to the asynchronous action of the two hydraulic cylinders and the extension of the production cycle, reducing the control difficulty, improving the control accuracy and response speed; (2) It simplifies the structural layout on the brake template, which is convenient for later maintenance; (3) Compared with the swing-type push brake plate closing, the direct-acting closing method of this scheme can increase the effective stroke of the brake plate action and reduce the stroke energy consumption. Attached Figure Description
[0016] Figure 1 This is an isometric view of the present invention.
[0017] Figure 2 This is the front view of the present invention.
[0018] Figure 3 This is the front view of Embodiment 2 of this utility model.
[0019] In the diagram: 1. Brake template, 2. Brake assembly, 3. First drive wheel, 4. Second drive wheel, 5. Inner brake plate, 6. Outer brake plate, 7. Guide rod, 8. Synchronous rack, 9. Third drive wheel, 10. Brake plate fixing block, 11. Drive device, 12. First synchronous wheel, 13. Second synchronous wheel, 14. Third synchronous wheel, 15. Drive belt, 16. Sliding limit groove. Detailed Implementation
[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] Example 1: As Figure 1 and Figure 2 The electric synchronous brake mechanism shown includes a brake template 1, which is a rectangular structure and is either integral with or fixed to a moving template. It is used for movement and connection to the pull rod of the injection molding machine. Two sets of brake assemblies 2 are symmetrically arranged on the brake template 1, located at its left and right edges. Each set of brake assemblies 2 has four brake plates, forming two brakes. A drive assembly is located in the middle of the brake template 1. The drive assembly includes a drive device 11 and a synchronous pulley set. The drive device 11 provides power to the synchronous pulley set, which then drives the four brakes to move synchronously. This enables synchronous opening and closing of the four brakes, greatly improving the stability of the connection between the brakes and the pull rod and preventing damage to the pull rod.
[0022] Specifically, the drive assembly is mainly arranged in the lower part (relative to the figure) of the brake template 1. A drive device 11 is set in the lower middle part of the brake template 1. The drive device 11 is a motor that outputs torque. An output wheel is fixedly connected to the output end of the drive device 11. The axial end face of the output wheel is parallel to the plane of the brake template 1. The drive device 11 is fixed on the brake template 1 by a mounting plate.
[0023] A synchronous pulley set is also provided on the brake template 1. The synchronous pulley set includes a first transmission pulley 3, a second transmission pulley 4, a first synchronous pulley 12, and a second synchronous pulley 13. The first synchronous pulley and the first transmission pulley are coaxially fixed together, and the second synchronous pulley and the second transmission pulley are coaxially fixed together. Specifically, the first transmission pulley 3 and the first synchronous pulley 12 are connected by a first transmission shaft. One end of the first transmission shaft is rotatably connected to the brake template 1 through a bearing, so that the first transmission shaft can rotate relative to the brake template 1. The first transmission pulley 3 is provided on the side of the first transmission shaft near the surface of the brake template 1, and the first synchronous pulley 12 is provided on the side of the first transmission shaft away from the surface of the brake template 1. Similarly, the second synchronous pulley 13 and the second transmission pulley 4 are connected by a second transmission shaft. One end of the second transmission shaft is rotatably connected to the brake template 1 through a bearing, so that the second transmission shaft can rotate relative to the brake template 1. The second transmission pulley is provided on the side of the second transmission shaft near the surface of the brake template 1. 4. A second synchronous pulley 13 is provided at the end of the second drive shaft away from the surface of the brake template 1; that is, the first drive pulley 3 and the second drive pulley 4 are both located on the side close to the surface of the brake template 1, and the first synchronous pulley 12 and the second synchronous pulley 13 are both located on the side away from the surface of the brake template 1; wherein, the first drive pulley 3 and the second drive pulley 4 are both gear structures, the first drive pulley 3 and the second drive pulley 4 are gears without flanges, and the first drive pulley 3 and the second drive pulley 4 mesh and drive; the first synchronous pulley 12 and the second synchronous pulley 13 are gears with flanges, and the first synchronous pulley 12 and the second synchronous pulley 13 are respectively connected to the brake assemblies 2 on the left and right sides (relative to the figure) through a drive belt 15.
[0024] The output wheel on the drive device 11 is also a gear structure. The output wheel can mesh with the first transmission wheel 3 or the second transmission wheel 4. In this embodiment, the output wheel meshes with the first transmission wheel 3. When the drive device 11 is started, it drives the output wheel to rotate, and the output wheel drives the first transmission wheel 3 to rotate on a fixed axis. Since the first synchronous wheel 12 is coaxially arranged with the first transmission wheel 3, the second transmission wheel 4 meshes with the first transmission wheel 3. Thus, the first transmission wheel 3 drives the first synchronous wheel 12 and the second transmission wheel 4 to rotate. The first synchronous wheel 12 drives the brake assembly 2 on one side to move through the transmission belt 15. At the same time, the second synchronous wheel 13 is coaxially arranged with the second transmission wheel 4. The second transmission wheel 4 drives the second synchronous wheel 13 to rotate. Thus, the second synchronous wheel 13 drives the brake assembly 2 on the other side to move through another set of transmission belts 15. This achieves the synchronous opening and closing action of the four sets of brakes on the brake template 1, ensuring that the four tie rods on the injection molding machine are clamped and released synchronously.
[0025] There is a set of brake assemblies 2 on each of the left and right sides of the brake template 1. The two sets of brake assemblies 2 have the same structure. In this embodiment, only the brake assembly 2 that is linked with the first transmission wheel 3 and the first synchronous wheel 12 will be described. The brake assembly 2 includes two brakes. Each brake consists of an inner brake plate 5 and an outer brake plate 6. Thus, a set of brake assemblies 2 includes four brake plates. Since the two brakes are located in the same vertical direction on the brake template 1, the four brake plates are also located in the same vertical direction (relative to the figure). The brake plate closer to the outside of the brake template 1 is the outer brake plate 6, and the brake plate closer to the inside of the brake template 1 is the inner brake plate 5. That is, the uppermost and lowermost brake plates are the outer brake plates 6, and the two brake plates located between the uppermost and lowermost are the inner brake plates 5. An inner brake plate 5 and an outer brake plate 6 together form a brake.
[0026] In this embodiment, the outer gate plate 6 is used as a fixed component, and the inner gate plate 5 is used as a moving component. Specifically, the two outer gate plates 6 are connected together by guide rods 7. A set of brake assemblies 2 is provided with four guide rods 7, which are arranged in parallel. Both ends of the guide rods 7 are fixedly connected to the outer gate plates 6. The middle part of the outer gate plate 6 is an arc-shaped receiving groove for cooperating with the pull rod. The guide rods 7 should be fixed outside the receiving groove of the outer gate plate 6 to avoid interfering with the pull rod. At the same time, since the inner gate plate 5 is located between the two outer gate plates 6, in order to ensure the connection between the guide rods 7 and the outer gate plates 6, a through hole is provided on the inner gate plate 5. The guide rods 7 pass through the through hole on the inner gate plate 5, thereby connecting the outer gate plates 6. That is, the inner gate plate 5 is slidably connected relative to the guide rods 7. The guide rods 7 can play a certain role in fixing the outer gate plates 6, and at the same time, they can also guide the movement of the inner gate plate 5 to prevent the inner gate plate 5 from deviating. Similarly, a receiving groove is also provided in the middle of the inner gate plate 5 to cooperate with the tie rod; the perforation on the inner gate plate 5 should also avoid the receiving groove structure on the inner gate plate 5 to avoid interfering with the tie rod.
[0027] The inner gate plate 5 is also equipped with a synchronization component. Specifically, each of the two sets of inner gate plates 5 has a synchronization rack 8 on the side away from the outer gate plate 6. The synchronization rack 8 is arranged vertically (relative to the diagram). A sliding limit groove 16 is also provided on the brake template 1, and the synchronization rack 8 moves within the sliding limit groove 16. It should be noted that the synchronization rack 8 is eccentrically arranged on the inner gate plate 5, so that the third transmission wheel 9 can be arranged at the central symmetrical point of the two inner gate plates 5. The inner gate plate 5, outer gate plate 6, and synchronization component are symmetrical about the central point of the third transmission wheel 9. The two synchronization racks 8 are located on both sides of the third transmission wheel 9 and mesh with each other.
[0028] The third drive wheel 9 is arranged on the third drive shaft, which is rotatably connected to the brake template 1 via bearings. The third drive wheel is a gear structure without flanges and is located on the side of the third drive shaft close to the surface of the brake template 1. A third synchronous wheel 14 is also provided on the side of the third drive shaft away from the surface of the brake template 1. The third synchronous wheel 14 is a gear structure with flanges. The third synchronous wheel 14 and the first synchronous wheel 12 are connected by a drive belt 15. The drive belt 15 is also provided with tooth grooves for meshing with the first synchronous wheel 12 and the third synchronous wheel 14. This can improve the transmission effect of the drive belt 15, prevent the drive belt 15 from slipping, and also ensure the closing force of the brake to prevent the lever from not being clamped.
[0029] When the drive device 11 drives the transmission belt 15 to move, the transmission belt 15 drives the third synchronous pulley 14 to move, which in turn drives the third transmission pulley 9 to move, causing the synchronous rack 8 that meshes with the third transmission pulley 9 to move. The synchronous racks 8 of the two sets of inner brake plates 5 are respectively meshed on both sides of the third transmission pulley 9. Therefore, the two synchronous racks 8 will move in opposite directions, thus realizing the synchronous closing and opening of the brake on the upper and lower sides of the third transmission pulley 9.
[0030] A gate fixing block 10 is also provided on the brake template 1. The gate fixing block 10 is fixed on the brake template 1 and is fixedly connected to the outer gate 6, thereby further ensuring the position of the outer gate 6 is fixed and preventing the outer gate 6 from shifting under the action of the closing force.
[0031] Example 2: Figure 1 and Figure 3The electric synchronous brake mechanism shown includes a brake template 1, which is a rectangular structure and is either integral with or fixed to a moving template. It is used for movement and connection to the pull rod of the injection molding machine. Two sets of brake assemblies 2 are symmetrically arranged on the brake template 1, located at its left and right edges. Each set of brake assemblies 2 has four brake plates, forming two brakes. A drive assembly is located in the middle of the brake template 1. The drive assembly includes a drive device 11 and a synchronous pulley set. The drive device 11 provides power to the synchronous pulley set, which then drives the four brakes to move synchronously. This enables synchronous opening and closing of the four brakes, greatly improving the stability of the connection between the brakes and the pull rod and preventing damage to the pull rod.
[0032] Specifically, the drive assembly is mainly arranged in the lower part (relative to the figure) of the brake template 1. A drive device 11 is set in the lower middle part of the brake template 1. The drive device 11 is a motor that outputs torque. An output wheel is fixedly connected to the output end of the drive device 11. The axial end face of the output wheel is parallel to the plane of the brake template 1. The drive device 11 is fixed on the brake template 1 by a mounting plate.
[0033] A synchronous pulley set is also provided on the brake template 1. The synchronous pulley set includes a first transmission pulley 3, a second transmission pulley 4, a first synchronous pulley 12, and a second synchronous pulley 13. The first synchronous pulley and the first transmission pulley are coaxially fixed together, and the second synchronous pulley and the second transmission pulley are coaxially fixed together. Specifically, the first transmission pulley 3 and the first synchronous pulley 12 are connected by a first transmission shaft. One end of the first transmission shaft is rotatably connected to the brake template 1 through a bearing, so that the first transmission shaft can rotate relative to the brake template 1. The first transmission pulley 3 is provided on the side of the first transmission shaft near the surface of the brake template 1, and the first synchronous pulley 12 is provided on the side of the first transmission shaft away from the surface of the brake template 1. Similarly, the second synchronous pulley 13 and the second transmission pulley 4 are connected by a second transmission shaft. One end of the second transmission shaft is rotatably connected to the brake template 1 through a bearing, so that the second transmission shaft can rotate relative to the brake template 1. The second transmission pulley is provided on the side of the second transmission shaft near the surface of the brake template 1. 4. A second synchronous pulley 13 is provided at the end of the second drive shaft away from the surface of the brake template 1; that is, the first drive pulley 3 and the second drive pulley 4 are both located on the side close to the surface of the brake template 1, and the first synchronous pulley 12 and the second synchronous pulley 13 are both located on the side away from the surface of the brake template 1; wherein, the first drive pulley 3 and the second drive pulley 4 are both gear structures, the first drive pulley 3 and the second drive pulley 4 are gears without flanges, and the first drive pulley 3 and the second drive pulley 4 mesh and drive; the first synchronous pulley 12 and the second synchronous pulley 13 are gears with flanges, and the first synchronous pulley 12 and the second synchronous pulley 13 are respectively connected to the brake assemblies 2 on the left and right sides (relative to the figure) through a drive belt 15.
[0034] The output wheel on the drive device 11 is also a gear structure. The output wheel can mesh with the first transmission wheel 3 or the second transmission wheel 4. In this embodiment, the output wheel meshes with the first transmission wheel 3. When the drive device 11 is started, it drives the output wheel to rotate, and the output wheel drives the first transmission wheel 3 to rotate on a fixed axis. Since the first synchronous wheel 12 is coaxially arranged with the first transmission wheel 3, the second transmission wheel 4 meshes with the first transmission wheel 3. Thus, the first transmission wheel 3 drives the first synchronous wheel 12 and the second transmission wheel 4 to rotate. The first synchronous wheel 12 drives the brake assembly 2 on one side to move through the transmission belt 15. At the same time, the second synchronous wheel 13 is coaxially arranged with the second transmission wheel 4. The second transmission wheel 4 drives the second synchronous wheel 13 to rotate. Thus, the second synchronous wheel 13 drives the brake assembly 2 on the other side to move through another set of transmission belts 15. This achieves the synchronous opening and closing action of the four sets of brakes on the brake template 1, ensuring that the four tie rods on the injection molding machine are clamped and released synchronously.
[0035] There is a set of brake assemblies 2 on each of the left and right sides of the brake template 1. The two sets of brake assemblies 2 have the same structure. In this embodiment, only the brake assembly 2 that is linked with the first transmission wheel 3 and the first synchronous wheel 12 will be described. The brake assembly 2 includes two brakes. Each brake consists of an inner brake plate 5 and an outer brake plate 6. Thus, a set of brake assemblies 2 includes four brake plates. Since the two brakes are located in the same vertical direction on the brake template 1, the four brake plates are also located in the same vertical direction (relative to the figure). The brake plate closer to the outside of the brake template 1 is the outer brake plate 6, and the brake plate closer to the inside of the brake template 1 is the inner brake plate 5. That is, the uppermost and lowermost brake plates are the outer brake plates 6, and the two brake plates located between the uppermost and lowermost are the inner brake plates 5. An inner brake plate 5 and an outer brake plate 6 together form a brake.
[0036] In this embodiment, the outer gate plate 6 is used as the moving part, and the inner gate plate 5 is used as the fixed part. A guide rod 7 is provided on the outer gate plate 6. One end of the guide rod 7 passes through the inner and outer gate plates and is fixedly connected to the side of the outer gate plate 6 away from the inner gate plate 5. The other end of the guide rod 7 is fixedly connected to the synchronization component. The middle part of the outer gate plate 6 is an arc-shaped receiving groove for cooperating with the pull rod. The guide rod 7 should be fixed to a position outside the receiving groove of the outer gate plate 6 to avoid interfering with the pull rod. At the same time, since the inner gate plate 5 is located between the two outer gate plates 6, in order to ensure the connection between the guide rod 7 and the outer gate plate 6, a through hole is provided on the inner gate plate 5. The guide rod 7 passes through the through hole on the inner gate plate 5, thereby connecting the outer gate plate 6. That is, the guide rod 7 is slidably connected relative to the inner gate plate 5. The guide rod 7 can play a certain role in fixing the outer gate plate 6, and at the same time, it can also guide the movement of the outer gate plate 6 to prevent the outer gate plate 6 from deviating. Similarly, a receiving groove is also provided in the middle of the inner gate plate 5 to cooperate with the tie rod; the perforation on the inner gate plate 5 should also avoid the receiving groove structure on the inner gate plate 5 to avoid interfering with the tie rod.
[0037] The guide rod 7 is also equipped with a synchronization component. Specifically, a synchronization rack 8 is provided on each of the two sets of inner brake plates 5 away from the outer brake plate 6. The synchronization rack 8 is arranged vertically (relative to the diagram) and fixedly connected to the guide rod 7. A sliding limit groove 16 is also provided on the brake template 1, and the synchronization rack 8 moves within the sliding limit groove 16. It should be noted that the synchronization rack 8 is eccentrically arranged on the outer brake plate 6, so that the third transmission wheel 9 can be arranged at the central symmetrical point of the two outer brake plates 6. The inner brake plate 5, outer brake plate 6, and synchronization component are symmetrical about the central point of the third transmission wheel 9. The two synchronization racks 8 are located on both sides of the third transmission wheel 9 and mesh with each other.
[0038] The third drive wheel 9 is arranged on the third drive shaft, which is rotatably connected to the brake template 1 via bearings. The third drive wheel is a gear structure without flanges and is located on the side of the third drive shaft close to the surface of the brake template 1. A third synchronous wheel 14 is also provided on the side of the third drive shaft away from the surface of the brake template 1. The third synchronous wheel 14 is a gear structure with flanges. The third synchronous wheel 14 and the first synchronous wheel 12 are connected by a drive belt 15. The drive belt 15 is also provided with tooth grooves for meshing with the first synchronous wheel 12 and the third synchronous wheel 14. This can improve the transmission effect of the drive belt 15, prevent the drive belt 15 from slipping, and also ensure the closing force of the brake to prevent the lever from not being clamped.
[0039] When the drive device 11 drives the transmission belt 15 to move, the transmission belt 15 drives the third synchronous pulley 14 to move, which in turn drives the third transmission pulley 9 to move, causing the synchronous rack 8 that meshes with the third transmission pulley 9 to move. The synchronous racks 8 of the two sets of outer brake plates 6 mesh with the two sides of the third transmission pulley 9 respectively. Therefore, the two synchronous racks 8 will move in opposite directions, thus realizing the synchronous closing and opening of the brake on the upper and lower sides of the third transmission pulley 9.
[0040] A gate fixing block 10 is also provided on the brake template 1. The gate fixing block 10 is fixed on the brake template 1 and is fixedly connected to the inner gate 5, thereby further ensuring the position of the inner gate 5 is fixed and preventing the inner gate 5 from shifting under the action of the closing force.
Claims
1. An electric synchronous brake mechanism, characterized in that, The device includes a brake template and two sets of brake assemblies mounted on the brake template. The brake template is provided with a set of synchronous pulleys connected to the brake assemblies. One end of the set of synchronous pulleys is provided with a first drive pulley and a second drive pulley, and the other end is provided with a first synchronous pulley and a second synchronous pulley. The first drive pulley and the second drive pulley mesh with each other. The first synchronous pulley and the second synchronous pulley are respectively connected to the brake assemblies via a drive belt.
2. The electric synchronous brake mechanism according to claim 1, characterized in that, The first transmission wheel is coaxially arranged with the first synchronous wheel, and the second transmission wheel is coaxially arranged with the second synchronous wheel.
3. The electric synchronous brake mechanism according to claim 1, characterized in that, The brake assembly includes two sets of matching inner and outer brake plates. The outer brake plates are connected by guide rods and located at both ends of the guide rods. The inner brake plates are slidably connected to the guide rods, and the outer brake plates are fixed to the brake template.
4. The electric synchronous brake mechanism according to claim 3, characterized in that, The brake template is also provided with a synchronization component, which includes a synchronization rack fixedly connected to the inner brake plate and a third transmission wheel meshing with the synchronization rack. The synchronization racks corresponding to the two sets of inner brake plates are respectively meshed on both sides of the third transmission wheel.
5. The electric synchronous brake mechanism according to claim 3, characterized in that, The brake template is provided with a brake plate fixing block, which is fixedly connected to the outer brake plate.
6. The electric synchronous brake mechanism according to claim 1, characterized in that, The brake assembly includes two sets of compatible inner and outer brake plates. The inner brake plates are fixed to the brake template, and the outer brake plates are slidably arranged on the brake template relative to the inner brake plates.
7. The electric synchronous brake mechanism according to claim 6, characterized in that, The brake template is also provided with a synchronization component, which includes a synchronization rack fixedly connected to the outer brake plate and a third transmission wheel meshing with the synchronization rack. The synchronization racks corresponding to the two sets of outer brake plates are respectively meshed on both sides of the third transmission wheel. The synchronization racks are fixedly connected to the outer brake plate through guide rods.
8. The electric synchronous brake mechanism according to claim 7, characterized in that, The brake template is also provided with a brake plate fixing block, which is fixedly connected to the inner brake plate.
9. An electric synchronous brake mechanism according to any one of claims 1 to 8, characterized in that, The brake template is also equipped with a drive device, which includes an output wheel that meshes with the first transmission wheel or the second transmission wheel.