High-performance low-energy-consumption split type driving motor power-off brake

Abstract

The utility model discloses a high-performance low-energy-consumption split type driving motor power-off brake, and belongs to the technical field of brakes. A high-performance low-energy-consumption split type driving motor power-off brake comprises a magnet yoke, an armature, a pair of coils, a brake shoe seat and a plurality of springs. A screw rod is arranged at the tail end of the brake shoe seat, penetrates through the armature through hole and the magnet yoke through hole, and is used for enabling the armature to move along the direction of the screw rod; a pair of iron cores are embedded in the magnet yoke, and the coils are sleeved on the peripheries of the iron cores and used for generating magnetic force through electrification to attract the armature; the armature is detachably connected with the brake shoe seat, and the brake shoe block is fixedly installed on the top of the brake shoe seat, so that the brake shoe block is separated from or attached to the brake wheel, and the purpose of braking is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to brake technical field, more specifically, relate to a high performance low energy consumption split type drive motor power failure brake. BACKGROUND

[0002] The drive motor with brake is the important driving tool in the present industrial automation and robot, intelligent warehouse, elevator technology etc., wherein the brake functions are to switch work or stop work quickly when needed, to improve production efficiency and reduce energy consumption effectively, to ensure the comfort and safety of the accompanying products through accurate positioning etc. The brake safety is very important, especially the brake for elevator as the key component of elevator safety control, responsible for emergency braking when elevator operation is abnormal or power failure, to ensure the safety of passengers and equipment.

[0003] However, the existing drive motor brake has problems of unstable braking force, long braking response time, low material utilization rate in production process, high production and processing cost etc., which affects the overall cost, performance and safety; taking a new brake (CN202321683449.3) disclosed in Chinese invention patent document as an example, the invention utilizes the inner magnetic pole core and outer magnetic pole core to form the magnetic pole core through lamination, to reduce the eddy current loss and magnetic resistance magnetic loss; however, the magnetic yoke of the invention has a large contact area with the armature, so that a large braking impact force and noise are generated, reducing the service life of the equipment, and meanwhile the invention needs an external terminal box, the outer magnetic pole core has a large number of openings, and the installation difficulty is high.

[0004] Therefore, we need a drive motor brake with simple structure, stable operation and small magnetic force loss. INVENTION CONTENTS

[0005] The utility model wants to solve the technical problem in providing a high performance low energy consumption split type drive motor power failure brake, simple assembly, through setting a pair of the iron core with the coil in the magnetic yoke to attract the armature to realize the quick brake, and has the effect of stable operation and small magnetic force loss.

[0006] The utility model relates to a high performance low energy consumption split type drive motor power failure brake, including the magnetic yoke, armature, a pair of coil, brake shoe seat and a plurality of springs, the armature is detachably connected with brake shoe seat, and brake shoe seat top fixed installation has brake shoe, and is used for cooperating the brake wheel of drive motor to reach the brake effect.

[0007] The armature middle part is opened the through -hole, brake shoe seat lower extreme is equipped with the screw rod, the magnetic yoke middle part is opened the through -hole, and the screw rod passes through the armature through -hole and the magnetic yoke through -hole, is used for making the armature drive brake shoe seat move along the screw rod direction, to make brake shoe block and brake wheel separate or adhere, reach the purpose of braking.

[0008] A pair of iron cores are detachably mounted on the magnetic yoke, and a coil is sleeved around the outer circumference of the iron cores to generate magnetic force when energized, thereby attracting the armature.

[0009] Several support columns are fixedly installed on the magnetic yoke, and springs are respectively sleeved on the outer periphery of the support columns; the two ends of the springs respectively abut against the magnetic yoke and the armature, which is used to reduce the contact area between the magnetic yoke and the armature, thereby reducing the braking impact force and quickly pushing the armature to make the brake shoes fit tightly against the brake wheel after the coil is de-energized, thus achieving rapid braking.

[0010] As a further improvement of this utility model, the iron core is installed on the magnetic yoke by fitting, thereby improving the electromagnetic attraction force; a magnetic blocking interlayer is provided between the iron core and the magnetic yoke to reduce magnetic loss and thus reduce energy consumption.

[0011] As a further improvement of this utility model, it also includes a brake release handle, which is attached to the side of the magnetic yoke away from the armature; a pagoda spring is provided on the upper part of the brake release handle; a through hole is opened in the middle of the brake release handle, a screw passes through the through hole of the brake release handle, and a nut is provided at the end of the screw for threaded connection; one end of the pagoda spring abuts against the brake release handle, and the other end abuts against the nut; the brake release handle applies pressure to the nut through the pagoda spring, which is used to balance the elastic force of the spring on the armature, so as to achieve the effect of separating the brake shoe from the brake wheel.

[0012] As a further improvement of this utility model, a gasket is provided on the outer periphery of the through hole of the brake release handle to evenly bear the load of the pagoda spring on the brake release handle and avoid uneven force on the brake release handle.

[0013] As a further improvement of this utility model, the end of the brake release handle is provided with a mounting part, which has a mounting groove for accommodating a shaft or rod, for manually releasing the brake shoe after assembling the shaft or rod.

[0014] As a further improvement of this utility model, the outer periphery of the coil is wrapped with a material that blocks magnetic force penetration, in order to prevent magnetic force leakage and improve the effective utilization rate of electrical energy.

[0015] As a further improvement of this utility model, mounting holes are opened at the four corners of the magnetic yoke, which are used to detachably install the magnetic yoke on the side of the drive motor, thereby controlling the braking of the drive motor by driving the brake pads to move.

[0016] As a further improvement of this utility model, the four corners of the magnetic yoke are respectively provided with first limiting grooves, and the four corners of the armature are respectively provided with second limiting grooves. The first limiting grooves and the second limiting grooves correspond to each other. A limiting spring is provided inside the second limiting groove. One end of the limiting spring abuts against the second limiting groove, and the other end abuts against the first limiting groove. This is used to prevent the armature from deviating during the movement process, to avoid adjusting the transmission gap between the armature and the magnetic yoke, and to ensure the stability of the device operation.

[0017] Compared with existing technologies, the advantages of this utility model are as follows: By setting a pair of iron cores with coils sleeved on the magnetic yoke, a magnetic force is generated to attract the armature when energized, and the armature is separated by a spring when de-energized, achieving rapid braking and ensuring a fast and reliable braking response; the magnetic yoke and the armature only contact each other through the spring, reducing the impact force when the armature contacts the magnetic yoke, thereby reducing noise and vibration and extending the service life of the equipment; by installing the iron cores on the magnetic yoke in a fitted manner and setting a magnetic blocking interlayer between the iron cores and the magnetic yoke, the electromagnetic attraction force is improved and the magnetic force loss is reduced; by setting a release handle to manually release the armature, it is used to manually control the operation of the brake in case of equipment failure or emergency; by wrapping the outer periphery of the coil with a material that blocks magnetic force penetration, magnetic force leakage is avoided and energy consumption is reduced. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the magnetic yoke structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the magnetic yoke of this utility model;

[0021] Figure 4 This is a schematic diagram of the brake release handle structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Magnetic yoke, 11. Iron core, 12. Support column, 13. Mounting hole, 14. Magnetic blocking interlayer, 15. First limiting groove, 2. Armature, 21. Second limiting groove, 22. Limiting spring, 3. Coil, 4. Brake shoe seat, 41. Brake shoe block, 42. Screw, 5. Spring, 6. Brake release handle, 61. Washer, 62. Mounting part, 7. Pagoda spring, 8. Nut. Detailed Implementation

[0024] Specific Implementation Example 1: Please refer to Figures 1-4 A high-performance, low-energy-consumption split-type drive motor power-off brake includes a magnetic yoke 1, an armature 2, a pair of coils 3, a brake shoe seat 4, and several springs 5; the armature 2 and the brake shoe seat 4 are detachably connected by bolts, and a brake pad 41 is fixedly installed on the top of the brake shoe seat 4 to cooperate with the brake wheel of the drive motor to achieve the braking effect.

[0025] The armature 2 has a through hole in the middle, the brake shoe seat 4 has a screw 42 at the tail end, and the magnetic yoke 1 has a through hole in the middle. The screw 42 passes through the through hole of the armature 2 and the through hole of the magnetic yoke 1, so that the armature 2 drives the brake shoe seat 4 to move along the direction of the screw 42, thereby separating or engaging the brake shoe 41 with the brake wheel, so as to achieve the purpose of braking the drive motor.

[0026] likeFigure 2 A pair of iron cores 11 are detachably installed on the magnetic yoke 1 shown. The coil 3 is sleeved on the outer periphery of the iron core 11 and is used to generate magnetic force when energized, attracting the armature 2 to move closer to the magnetic yoke 1. This overcomes the elastic force of the spring 5 between the magnetic yoke 1 and the armature 2, thereby causing the brake shoe 41 to disengage from the brake wheel of the drive motor, so as to enable the drive motor to work normally.

[0027] Several support columns 12 are fixedly installed on the magnetic yoke 1, and springs 5 ​​are respectively sleeved on the outer periphery of the support columns 12. The two ends of the springs 5 ​​respectively abut against the magnetic yoke 1 and the armature 2, which is used to reduce the contact area between the magnetic yoke 1 and the armature 2. This can reduce the braking impact force, reduce noise, and extend the service life of the equipment. It can also quickly push the armature 2 after the coil 3 is de-energized, so that the brake shoe 41 fits tightly against the brake wheel, thereby achieving rapid braking.

[0028] Specifically, the iron core 11 is installed on the magnetic yoke 1 by fitting, thereby improving the electromagnetic attraction force; a magnetically blocking interlayer 13 is provided between the iron core 11 and the magnetic yoke 1 to reduce magnetic loss and thus reduce energy consumption.

[0029] Specifically, such as Figure 3 As shown, it also includes a brake release handle 6, which is attached to the side of the magnetic yoke 1 away from the armature 2; a pagoda spring 7 is provided on the upper part of the brake release handle 6; a through hole is opened in the middle of the brake release handle 6, and a screw 42 passes through the through hole of the brake release handle 6. A nut 8 is threadedly connected to the end of the screw 42. One end of the pagoda spring 7 abuts against the brake release handle 6, and the other end abuts against the nut 8; when it is necessary to release the brake on the already braked drive motor, the brake release handle 6 is lifted to disengage from the magnetic yoke 1, and the nut 8 is pressed by the pagoda spring 7, thereby transmitting the pressure to the screw 42 threadedly connected to the nut 8, so that the screw 42 pulls the brake shoe 41 to generate a pulling force opposite to the elastic force of the spring 5, thereby balancing the elastic force of the spring 5 on the armature 2, so that the brake shoe 41 separates from the brake wheel, and the brake can be manually released in case of equipment failure or specific operating requirements.

[0030] Specifically, such as Figure 4 A washer 61 is provided on the outer periphery of the through hole of the brake release handle 6 shown, which is used to evenly bear the load of the pagoda spring 7 on the brake release handle 6 and avoid damage to the brake release handle 6 due to uneven force.

[0031] Specifically, the brake release handle 6 has a mounting part 62 at its end. The mounting part 62 has a mounting groove for accommodating a shaft or rod. After assembling the shaft or rod, the brake release handle 6 is manually lifted to release the brake shoe 41 of the brake shoe seat 4, so as to achieve the purpose of manually controlling the operation of the brake in case of equipment failure or emergency.

[0032] Specifically, the outer periphery of the coil 3 is wrapped with a material that blocks magnetic penetration, guiding and concentrating the magnetic lines of force at the iron core 11 inside the coil 3, reducing the diffusion of magnetic lines of force to the outside, thereby reducing energy loss and preventing magnetic leakage, and improving the effective utilization rate of the magnetic force of the iron core 11 and the electrical energy of the coil 3.

[0033] Specifically, the magnetic yoke 1 has mounting holes 13 at its four corners, which are used to detachably mount the magnetic yoke 1 to the side of the drive motor by bolts, so that the brake pads 41 are displaced by the spring 5 to control the braking of the drive motor.

[0034] Specifically, the magnetic yoke 1 has first limiting grooves 15 at each of its four corners, and the armature 2 has second limiting grooves 21 at each of its four corners. The first limiting grooves 15 and the second limiting grooves 21 are positioned correspondingly. A limiting spring 22 is provided inside the second limiting groove 21. One end of the limiting spring 22 abuts against the second limiting groove 21, and the other end abuts against the first limiting groove 15. At this time, the limiting spring 22 can act as a limiting device to restrict the armature 2 from deviating during its movement along the screw 42, thus preventing the armature 2 from swinging. At the same time, since there is a gap in the mechanical transmission, the gap may need to be adjusted to ensure the normal operation of the mechanical transmission. The limiting spring 22 can keep the gap between the armature 2 and the magnetic yoke 1 within a suitable range without additional manual adjustment, thereby ensuring the performance and stability of the equipment.

[0035] During use, the magnetic yoke 1 is installed next to the drive motor through the mounting hole 13, and the brake is assembled. When the drive motor needs to be braked, the coil 3 is de-energized, causing the magnetic force of the iron core 11 to disappear. The spring 5 pushes the armature 2 to make the brake shoe 41 fit tightly against the brake wheel, achieving rapid braking. When the drive motor is running, the coil 3 is energized, causing the iron core 11 to generate magnetic force to attract the armature 0, thereby separating the brake shoe 41 from the brake wheel, achieving normal operation. When the equipment malfunctions or an emergency requires releasing the braked drive motor, the release handle 6 can be manually lifted to disengage from the magnetic yoke 1, and the nut 8 is pressed by the pagoda spring 7, thereby transmitting the pressure to the screw 42 threadedly connected to the nut 8. This causes the screw 42 to pull the brake shoe 41, generating a pulling force opposite to the elastic force of the spring 5, achieving the effect of balancing the elastic force of the spring 5 on the armature 2, ensuring the safe operation of the equipment.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A high-performance, low-energy-consumption split-type drive motor power-off brake, characterized in that, It includes a magnetic yoke (1), an armature (2), a pair of coils (3), a brake shoe seat (4) and several springs (5); the armature (2) is detachably connected to the brake shoe seat (4), and a brake shoe block (41) is fixedly installed on the top of the brake shoe seat (4) to cooperate with the brake wheel of the drive motor; The armature (2) has a through hole in the middle, the brake shoe seat (4) is provided with a screw (42) at the lower end, the magnetic yoke (1) has a through hole in the middle, and the screw (42) passes through the through hole of the armature (2) and the through hole of the magnetic yoke (1) to make the armature (2) drive the brake shoe seat (4) to move along the direction of the screw (42); A pair of iron cores (11) are detachably installed on the magnetic yoke (1), and the coil (3) is sleeved on the outer periphery of the iron cores (11) for generating magnetic force when energized to attract the armature (2). A number of support columns (12) are fixedly installed on the magnetic yoke (1), and springs (5) are respectively sleeved on the outer periphery of the support columns (12); the two ends of the springs (5) respectively abut against the magnetic yoke (1) and the armature (2) to reduce the contact area between the magnetic yoke (1) and the armature (2); The iron core (11) is mounted on the magnetic yoke (1) by fitting, and a magnetic blocking interlayer (14) is provided between the iron core (11) and the magnetic yoke (1). The magnetic yoke (1) has a first limiting groove (15) at each of its four corners, and the armature (2) has a second limiting groove (21) at each of its four corners. The first limiting groove (15) and the second limiting groove (21) correspond to each other. A limiting spring (22) is provided inside the second limiting groove (21). One end of the limiting spring (22) abuts against the second limiting groove (21), and the other end abuts against the first limiting groove (15). This is used to prevent the armature (2) from shifting during its movement, and at the same time to prevent the adjustment of the transmission gap between the armature (2) and the magnetic yoke (1).

2. The high-performance, low-energy-consumption split-type drive motor power-off brake according to claim 1, characterized in that, It also includes a brake release handle (6), which is in contact with the side of the magnetic yoke (1) away from the armature (2); a pagoda spring (7) is provided on the upper part of the brake release handle (6); a through hole is opened in the middle of the brake release handle (6), and a screw (42) passes through the through hole of the brake release handle (6). A nut (8) is provided at the end of the screw (42) and is threadedly connected to it. One end of the pagoda spring (7) abuts against the brake release handle (6) and the other end abuts against the nut (8).

3. A high-performance, low-energy-consumption split-type drive motor power-off brake according to claim 2, characterized in that, A gasket (61) is provided on the outer periphery of the through hole of the brake release handle (6) to evenly bear the load of the pagoda spring (7) on the brake release handle (6).

4. A high-performance, low-energy-consumption split-type drive motor power-off brake according to claim 2, characterized in that, The brake release handle (6) has an installation part (62) at its end. The installation part (62) has an installation groove for accommodating a shaft or rod, which is used to manually release the brake shoe seat (4) after assembling the shaft or rod.

5. A high-performance, low-energy-consumption split-type drive motor power-off brake according to claim 1, characterized in that, The coil (3) is wrapped with a material that prevents magnetic force from penetrating, in order to avoid magnetic force leakage.

6. A high-performance, low-energy-consumption split-type drive motor power-off brake according to claim 1, characterized in that, The magnetic yoke (1) has mounting holes (13) at its four corners, which are used to detachably mount the magnetic yoke (1) to the side of the drive motor.

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