A single-piece electromagnetic brake structure

Abstract

The utility model relates to the technical field of electromagnetic brake, especially a single piece electromagnetic brake structure, including the magnetic yoke, the right side of magnetic yoke is provided with armature, the right side swing mounting of armature has the forklift truck wheel, the inside mounting of forklift truck wheel has the adjusting mechanism, the left side of adjusting mechanism is connected with armature, the right side fixedly connected with first spring of armature, the right side of armature is provided with insulating pad, the insulating pad is embedded in the inside of armature, the adjusting mechanism includes the connecting pipe, the inner wall movable joint of connecting pipe has the movable plate. The utility model discloses through setting up the magnetic yoke, armature, forklift truck wheel, adjusting mechanism and first spring, and the suitable interval between the adjusting mechanism adjusting armature and magnetic yoke, when the brake is electrified, the armature of electromagnetic force will attractor part is attracted to stator magnetic yoke, and the armature is contacted closely with the magnetic yoke, and the forklift truck wheel is braked, and the braking effect is good, and the safety of equipment operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic brake technology, specifically a single-piece electromagnetic brake structure. Background Technology

[0002] An electromagnetic brake is a connector that transmits torque from the active side to the passive side. It can be freely engaged, disengaged, or braked as needed. Electromagnetic brakes can be classified in various ways. According to the braking method, they can be divided into energized braking and de-energized braking. Electromagnetic brakes are widely used in machinery in metallurgy, construction, chemical industry, food industry, machine tools, stage, elevator, ship, packaging and other fields, as well as in braking situations when power is off (as a safety precaution).

[0003] Traditional electromagnetic brake structures have poor braking performance, and the distance between the armature and the yoke is not adjustable, which can easily lead to poor contact during braking, reducing the braking effect. In order to solve the above technical problems, it is necessary to design a single-piece electromagnetic brake structure. Utility Model Content

[0004] The purpose of this invention is to provide a single-piece electromagnetic brake structure that has the advantages of tight contact between the armature and the magnet during braking and good braking effect. It solves the problems of poor braking effect of traditional electromagnetic brake structures, the inability to adjust the distance between the armature and the yoke, and the easy occurrence of poor contact between them during braking, which reduces the braking effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-piece electromagnetic brake structure, including a magnetic yoke, an armature is provided on the right side of the magnetic yoke, a forklift wheel is movably mounted on the right side of the armature, an adjustment mechanism is installed inside the forklift wheel, the left side of the adjustment mechanism is connected to the armature, a first spring is fixedly connected to the right side of the armature, and a friction plate is provided on the left side of the armature.

[0006] Preferably, an insulating pad is provided on the right side of the armature, and the insulating pad is embedded inside the armature.

[0007] Preferably, the adjustment mechanism includes a connecting pipe, a movable plate is movably connected to the inner wall of the connecting pipe, a second spring is fixedly connected to the right side of the movable plate, and the right side of the second spring is fixed to the inner wall of the connecting pipe.

[0008] Preferably, the left side of the connecting pipe is fixedly connected to the armature, and the right side of the connecting pipe is in contact with the forklift wheel.

[0009] Preferably, a bolt is movably connected to the right side of the movable plate, and a groove is provided on the right side of the forklift wheel. The right side of the bolt passes through the connecting pipe and the forklift wheel in sequence and extends into the inner cavity of the groove. The bolt is threadedly connected to the forklift wheel.

[0010] Preferably, a locking mechanism is provided on the left side of the armature, the locking mechanism including an annular groove, the annular groove being formed on the left side of the armature, a retaining ring being fixedly connected to the right side of the friction plate, the right side of the retaining ring extending into the inner cavity of the annular groove, a circular groove being formed on the left side of the armature, a rotating rod being movably connected to the inner cavity of the circular groove, a rotating block being fixedly connected to the left side of the rotating rod, a deep groove being formed on the inner wall of the annular groove, a third spring being fixedly connected to the inner wall of the deep groove, a locking rod being fixedly connected to one side of the third spring, one side of the locking rod extending into the inner cavity of the retaining ring, a connecting rope being fixedly connected to one side of the locking rod, and one end of the connecting rope passing through the third spring and the armature respectively and being fixedly connected to the rotating rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention incorporates a magnetic yoke, an armature, forklift wheels, an adjustment mechanism, and a first spring. The adjustment mechanism regulates the appropriate distance between the armature-driven friction plate and the magnetic yoke. When the brake is energized, electromagnetic force attracts the armature of the moving part to the stator magnetic yoke, ensuring close contact between the armature and the magnetic yoke, thus braking the moving forklift wheels. This results in good braking performance and improves the safety of equipment operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism of this utility model;

[0016] Figure 4 This is a cross-sectional view of the snap-fit ​​mechanism of this utility model.

[0017] Figure 5 Circuit for a single-chip electromagnetic brake Figure 1 ;

[0018] Figure 6 Circuit for a single-chip electromagnetic brake Figure 2 .

[0019] In the diagram: 1. Magnetic yoke; 2. Armature; 3. Forklift wheel; 4. Adjustment mechanism; 40. Connecting pipe; 41. Movable plate; 42. Second spring; 43. Bolt; 44. Groove; 5. First spring; 6. Insulating pad; 7. Friction plate; 8. Clamping mechanism; 81. Circular groove; 82. Insert ring; 83. Circular groove; 84. Rotating rod; 85. Third spring; 86. Clamping rod; 87. Connecting rope; 88. Deep groove. Detailed Implementation

[0020] Please see Figures 1-3 A single-piece electromagnetic brake structure includes a magnetic yoke 1, an armature 2 on the right side of the magnetic yoke 1, a forklift wheel 3 movably mounted on the right side of the armature 2, an adjustment mechanism 4 installed inside the forklift wheel 3, the left side of the adjustment mechanism 4 connected to the armature 2, a first spring 5 fixedly connected to the right side of the armature 2, and a friction plate 7 on the left side of the armature 2. By configuring the magnetic yoke 1, armature 2, forklift wheel 3, adjustment mechanism 4, and first spring 5, when the brake is energized, the electromagnetic force drives the armature 2 of the moving part to pull the friction plate 7 towards the stator magnetic yoke 1, causing frictional resistance at the end face, thus braking the moving forklift wheel 3. After de-energization, the armature 2 quickly disengages and resets under the action of the first spring 5, thereby releasing the brake. This provides good braking effect and improves the safety of equipment operation.

[0021] Please see Figure 1 An insulating pad 6 is provided on the right side of the armature 2, and the insulating pad 6 is embedded inside the armature 2.

[0022] Please see Figure 3 The adjusting mechanism 4 includes a connecting pipe 40, a movable plate 41 is movably connected to the inner wall of the connecting pipe 40, a second spring 42 is fixedly connected to the right side of the movable plate 41, and the right side of the second spring 42 is fixed to the inner wall of the connecting pipe 40. By setting the second spring 42, the connecting pipe 40 is connected, which facilitates the return of the connecting pipe 40. By setting the movable plate 41, the connecting pipe 40 is guided, which facilitates the lateral movement of the armature 2 driven by the connecting pipe 40.

[0023] Please see Figure 3 The left side of the connecting pipe 40 is fixedly connected to the armature 2, and the right side of the connecting pipe 40 is in contact with the forklift wheel 3.

[0024] Please see Figure 3 A bolt 43 is movably connected to the right side of the movable plate 41. A groove 44 is provided on the right side of the forklift wheel 3. The right side of the bolt 43 passes through the connecting pipe 40 and the forklift wheel 3 and extends into the inner cavity of the groove 44. The bolt 43 is threadedly connected to the forklift wheel 3. The threaded connection between the bolt 43 and the forklift wheel 3 facilitates the lateral movement of the movable plate 41, the connecting pipe 40 and the armature 2, and adjusts the distance between the armature 2 and the magnetic yoke 1 so that the armature 2 is attracted and makes close contact with the magnetic yoke 1, thereby improving the braking effect of the wheel.

[0025] Please see Figure 4 A locking mechanism 8 is provided on the left side of the armature 2. The locking mechanism 8 includes an annular groove 81, which is located on the left side of the armature 2. A retaining ring 82 is fixedly connected to the right side of the friction plate 7. The right side of the retaining ring 82 extends into the inner cavity of the annular groove 81. A circular groove 83 is provided on the left side of the armature 2. A rotating rod 84 is movably connected to the inner cavity of the circular groove 83. A rotating block is fixedly connected to the left side of the rotating rod 84. A deep groove 88 is provided on the inner wall of the annular groove 81. A third spring 85 is fixedly connected to the inner wall of the deep groove 88. A locking mechanism is fixedly connected to one side of the third spring 85. The lever 86 extends one side into the inner cavity of the insert ring 82. A connecting rope 87 is fixedly connected to one side of the lever 86. One end of the connecting rope 87 passes through the third spring 85 and the armature 2 respectively and is fixedly connected to the rotating rod 84. By setting the rotating rod 84, the third spring 85, the lever 86 and the connecting rope 87, the lever 86 can be engaged with the insert ring 82, thereby positioning and installing the friction plate 7. At the same time, it is convenient to disassemble the friction plate 7 and replace the friction plate 7, thereby making the electromagnetic brake structure reusable and saving economic costs.

[0026] When in use, when the brake is energized, the electromagnetic force attracts the armature 2 and friction plate 7 of the moving part to the stator yoke 1, causing frictional resistance to be generated by the end face friction, which brakes the moving forklift wheels 3. After the power is cut off, the armature 2 quickly disengages and resets under the action of the first spring 5, thereby releasing the brake. The braking effect is good and the safety of equipment operation is improved.

[0027] The rotating bolt 43 is connected to the forklift wheel 3 by screws. The bolt 43 drives the movable plate 41, the second spring 42, the connecting pipe 40 and the armature 2 to move, adjusting the distance between the armature 2 and the magnetic yoke 1.

[0028] When disassembling the friction plate 7, the sleeve is engaged with the rotating block. Rotating the rotating block drives the rotating rod 84 to rotate, which pulls the connecting rope 87 to move. The connecting rope 87 pulls the locking rod 86 to move, causing the locking rod 86 to separate from the insert ring 82, thereby disassembling the friction plate 7.

[0029] Please see Figure 5 and Figure 6 The brake requires a DC power supply, which can be obtained from AC power through step-down and rectification. Its basic control circuit is as follows: Figure 4 As shown, if the brake is frequently started and disengaged, to prevent the back EMF from impacting the brake coil, it is recommended to use... Figure 5 The circuit shown is a switch, a diode, and a protective resistor. Generally, R can be 4 to 10 times the coil resistance value as needed, and Z can be a 5A / 500V rectifier diode according to the specifications. When K is open, the high back potential at both ends of the coil discharges through Z and R, protecting the coil from damage.

[0030] In summary, this single-piece electromagnetic brake structure, by incorporating a magnetic yoke 1, an armature 2, a forklift wheel 3, an adjustment mechanism 4, and a first spring 5, solves the problems of poor braking effect, non-adjustable spacing between the armature and the magnetic yoke, and easy contact failure during braking, which reduces the braking effect of traditional electromagnetic brake structures.

Claims

1. A monolithic electromagnetic brake structure, comprising a magnetic yoke (1), characterized in that: An armature (2) is provided on the right side of the magnetic yoke (1), and a forklift wheel (3) is movably mounted on the right side of the armature (2). An adjustment mechanism (4) is installed inside the forklift wheel (3). The left side of the adjustment mechanism (4) is connected to the armature (2). A first spring (5) is fixedly connected to the right side of the armature (2), and a friction plate (7) is provided on the left side of the armature (2).

2. The structure of a single-piece electromagnetic brake according to claim 1, characterized in that: An insulating pad (6) is provided on the right side of the armature (2), and the insulating pad (6) is embedded inside the armature (2).

3. The structure of a single-piece electromagnetic brake according to claim 1, characterized in that: The adjustment mechanism (4) includes a connecting pipe (40), and a movable plate (41) is movably connected to the inner wall of the connecting pipe (40). A second spring (42) is fixedly connected to the right side of the movable plate (41), and the right side of the second spring (42) is fixed to the inner wall of the connecting pipe (40).

4. The structure of a single-piece electromagnetic brake according to claim 1, characterized in that: The left side of the connecting pipe (40) is fixedly connected to the armature (2), and the right side of the connecting pipe (40) is in contact with the forklift wheel (3).

5. The structure of a single-piece electromagnetic brake according to claim 1, characterized in that: A bolt (43) is movably connected to the right side of the movable plate (41). A groove (44) is provided on the right side of the forklift wheel (3). The bolt (43) passes through the connecting pipe (40) and the forklift wheel (3) in sequence and extends into the inner cavity of the groove (44). The bolt (43) is threadedly connected to the forklift wheel (3).

6. The structure of a single-piece electromagnetic brake according to claim 1, characterized in that: A locking mechanism (8) is provided on the left side of the armature (2). The locking mechanism (8) includes an annular groove (81) on the left side of the armature (2). A retaining ring (82) is fixedly connected to the right side of the friction plate (7). The right side of the retaining ring (82) extends into the inner cavity of the annular groove (81). A circular groove (83) is provided on the left side of the armature (2). A rotating rod (84) is movably connected to the inner cavity of the circular groove (83). The left side of the rotating rod (84) is fixedly connected to... There is a rotating block. The inner wall of the annular groove (81) is provided with a deep groove (88). A third spring (85) is fixedly connected to the inner wall of the deep groove (88). A locking rod (86) is fixedly connected to one side of the third spring (85). One side of the locking rod (86) extends into the inner cavity of the insert ring (82). A connecting rope (87) is fixedly connected to one side of the locking rod (86). One end of the connecting rope (87) passes through the third spring (85) and the armature (2) respectively and is fixedly connected to the rotating rod (84).

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