Pincer-type electromagnetic brake with unilateral braking

Abstract

The utility model relates to a kind of unilateral braking pincers formula electromagnetic brake, its structure includes yoke, armature and friction plate, in the yoke is equipped with the electromagnetic coil of armature suction and the brake spring of armature push away, the friction plate for braking equipment brake disc and armature keep linkage, the yoke is fixedly connected on mounting seat, the form of the mounting seat is suitable for fixed on the fixed component of installed equipment, to make friction plate can be close to the one side disc surface of equipment brake disc.The utility model can realize only on the side of equipment brake disc installation and implement unilateral braking, also can be arranged one same brake on the both sides of equipment brake disc, brake from the both sides of brake disc, two brakes can be controlled separately, whereby also can meet the high security requirement of double brake of equipment.

Description

Technical Field

[0001] This utility model relates to an electromagnet brake, specifically a clamp-type electromagnet brake capable of unilateral braking. Background Technology

[0002] Currently available caliper-type electromagnetic brakes achieve braking by clamping the brake disc from both sides. The left and right clamping arms of this type of brake move synchronously and are interconnected; neither arm can brake independently. Furthermore, during braking, the two clamping arms move synchronously, generating the same clamping force on both sides of the brake disc. This structural characteristic presents a significant problem: caliper-type electromagnetic brakes are relatively large, requiring considerable space. If there is insufficient space on one side of the brake disc, this type of electromagnetic brake cannot be installed. Utility Model Content

[0003] The purpose of this invention is to provide a clamp-type electromagnetic brake that can brake on one side, so as to solve the problem that clamp-type electromagnetic brakes cannot be installed and used in some cases because they cannot brake on one side.

[0004] This utility model is implemented as follows:

[0005] A caliper-type electromagnetic brake capable of unilateral braking includes a yoke, an armature, and a friction pad. The yoke contains an electromagnetic coil for attracting the armature and a brake spring for pushing the armature away. The friction pad, used to brake the brake disc of the equipment, maintains linkage with the armature. The yoke is fixedly connected to a mounting base, which is shaped to be fixed to a fixed component of the equipment so that the friction pad can be close to one side of the brake disc.

[0006] Furthermore, the mounting base is located outside the armature, and a window opposite to the armature is provided on the mounting base; a pad made of non-magnetic metal material is fixedly connected to the armature, and the friction pad is attached to the outer end face of the pad. The pad protrudes from the window of the mounting base so that the friction pad is close to the surface of the brake disc.

[0007] Furthermore, the yoke is fixedly connected to the mounting base in the following manner: a long bolt passes through the through hole of the yoke, and its front screw is threaded into the screw hole on the mounting base; an internal thread section is machined in the opening on the side of the through hole of the yoke opposite the armature; an adjusting bolt with an axial mandrel passes through the through hole on the armature from the outside of the armature and is threaded into the internal thread section of the through hole of the yoke; a section of the adjusting bolt that passes through the armature is a smooth section; the nut of the adjusting bolt rests against the mounting base; and the screw of the long bolt passes through the axial mandrel of the adjusting bolt.

[0008] Furthermore, a set of clamp-type electromagnetic brakes with built-in mounting brackets is installed on each side of the equipment's brake disc. The mounting brackets of the two clamp-type electromagnetic brakes form an integrated portal frame structure through the upper connecting section, allowing the two clamp-type electromagnetic brakes to be positioned opposite each other. In this way, a brake can be arranged on each side of the equipment's brake disc, and braking can be applied from both sides of the brake disc. The two brakes can be controlled independently, thereby meeting the high reliability requirements of dual-brake braking.

[0009] Furthermore, the mounting base is located outside the yoke, the yoke is fixedly connected to the mounting base, and a protruding positioning pin is inserted and fixed on the yoke's contact surface. The extended section of the positioning pin is inserted into the positioning hole of the armature and maintains a sliding fit; the friction plate is attached to the armature.

[0010] Furthermore, the yoke is fixedly connected to the mounting base by a long bolt passing through the through hole of the mounting base, with its front threaded into the threaded hole on the yoke; an internal thread section is machined in the opening of the through hole of the yoke on the side opposite to the mounting base, and an adjusting bolt with an axial mandrel is threaded into the internal thread section of the through hole of the yoke, with the nut of the adjusting bolt resting against the mounting base, and the bolt of the long bolt passing through the axial mandrel of the adjusting bolt.

[0011] Furthermore, a set of externally mounted caliper-type electromagnetic brakes is installed on each side of the equipment's brake disc. The mounting bases of the two caliper-type electromagnetic brakes form an integrated portal frame structure through the upper connecting section, allowing the two caliper-type electromagnetic brakes to be positioned opposite each other. In this way, a brake can be arranged on each side of the equipment's brake disc, and braking can be applied from both sides of the brake disc. The two brakes can be controlled independently, thereby meeting the high reliability requirements of dual-brake braking.

[0012] This invention enables single-sided braking by installing and applying brakes from only one side of the equipment's brake disc. It is compact and occupies little space, allowing for installation and use even when space is limited on one side of the brake disc. Therefore, it effectively solves the problem of insufficient space preventing the installation and use of brakes in certain equipment, thus providing new possibilities for equipment structural innovation. Furthermore, by arranging an electromagnetic brake on each side of the brake disc, braking can be applied from both sides. The two brakes can be controlled independently, thereby achieving the high reliability required for dual-brake braking. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Example 1.

[0014] Figure 2 This is a schematic diagram of the structure of Example 2.

[0015] Figure 3This is a schematic diagram of the structure of Example 3.

[0016] Figure 4 This is a structural schematic diagram of Example 4.

[0017] In the diagram: 1. Adjusting bolt, 2. Armature, 3. Yoke, 4. Long rod bolt, 5. Electromagnetic coil, 6. Brake spring, 7. Pad, 8. Friction plate, 9. Screw, 10. Locating pin, 11. Mounting base, 12. Brake disc. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] Example 1

[0020] like Figure 1 As shown, the braking electromagnet consists of a yoke 3, an armature 2, and a friction plate 8. The yoke 2 contains an electromagnetic coil 5 for attracting the armature and a braking spring 6 for pushing the armature away. The yoke 3 is fixedly connected to a mounting base 11, which is shaped to be fixed to a fixed component on the mounted equipment, so that the friction plate 8 can be close to one side of the brake disc 12.

[0021] In this embodiment, the mounting base 11 is located outside the armature 2, and a window opposite to the armature 2 is provided on the mounting base 11. A pad 7 made of non-magnetic metal material is fixedly connected to the armature 2. The pad 7 is cylindrical, with a central boss on its inner end face. This central boss engages with the central hole of the armature 2 for easy installation and positioning. The pad 7 is fixedly connected to the armature 2 by screws 9, and the friction plate 8 is attached to the outer end face of the pad 7, thereby realizing the linkage between the friction plate 8 and the armature 2. The pad 7 protrudes from the window of the mounting base 11, allowing the friction plate 8 to be close to the surface of the brake disc 12. This forms a clamp-type electromagnetic brake built into the mounting base.

[0022] In this embodiment, the yoke 3 and the mounting base 11 are fixedly connected as follows: a long bolt 4 passes through the through hole on the yoke 3, and its front screw is threaded into a corresponding screw hole on the mounting base 11. An internal thread section is machined in the opening on the side of the yoke through hole opposite the armature. An adjusting bolt 1 with an axial mandrel passes through the through hole on the armature 2 from the outside and is threaded into the internal thread section of the yoke through hole. The section of the adjusting bolt 1 that passes into the armature is a smooth section to avoid obstructing the movement of the armature 2. The nut of the adjusting bolt 1 rests against the mounting base 11, and the screw of the long bolt 4 passes through the axial mandrel of the adjusting bolt 1. This achieves a fixed connection between the yoke 3 and the mounting base 11 without affecting the armature's movement. Simultaneously, by tightening the adjusting bolt 1, the position of the yoke 3 can be slightly adjusted, and through the armature 2 and the shim 7, the gap between the friction plate 8 and the brake disc 12 can be adjusted, thereby adjusting the brake clearance.

[0023] When the electromagnetic coil 5 is de-energized, the electromagnetic attraction disappears, and the brake spring 6, through the armature 2 and the pad 7, presses the friction plate 8 tightly against the surface of the brake disc 12. Braking is achieved by the friction between the friction plate 8 and the brake disc 12. At this time, there is a gap between the armature 2 and the yoke 3 (i.e., Figure 1 The air gap A in the brake is equal in size to the brake clearance of the brake. When the electromagnetic coil 5 is energized, the generated electromagnetic attraction force overcomes the resistance of the brake spring 6, causing the friction pad 8 to disengage from the brake disc 12, the friction force disappears, and the brake is released. At this time, the armature 2 and the yoke 3 are in contact, and the air gap A disappears.

[0024] When the friction pad 8 wears out, the air gap A of the brake will increase. If the air gap becomes too large, it will lead to insufficient braking force, reduced electromagnetic attraction force, or even failure to engage the armature. At this time, it is necessary to loosen the long rod bolt 4 and turn the adjusting bolt 1 to restore the air gap A to its initial value, thereby achieving the adjustment of the brake clearance.

[0025] Example 2

[0026] like Figure 2 As shown, in this embodiment, a clamp-type electromagnetic brake with a built-in mounting base as described in Embodiment 1 is installed on each of the two sides of the brake disc 12. The mounting bases 11 of the two clamp-type electromagnetic brakes form an integrated portal frame structure through the upper connecting section, allowing the two clamp-type electromagnetic brakes to be arranged opposite each other. The two clamp-type electromagnetic brakes are preferably arranged symmetrically, but an asymmetrical arrangement is possible in special cases. This allows for the placement of a brake on each side of the brake disc 12, braking the brake disc from both sides. The two brakes can be controlled independently, and the clamping forces generated on both sides of the brake disc 12 can be the same or different. This satisfies the high reliability requirements of dual-brake braking for the equipment.

[0027] Of course, instead of setting an intermediate connecting section on the mounting base 11 on the two brakes, the two clamp-type electromagnetic brakes in Embodiment 1 can be arranged opposite each other on both sides of the equipment brake disc, thereby forming a dual brake configuration of the equipment.

[0028] Example 3

[0029] like Figure 3 As shown, this embodiment also consists of a yoke 3, an armature 2, and a friction plate 8, forming a braking electromagnet. Similarly, the yoke 2 contains an electromagnetic coil 5 for attracting the armature and a braking spring 6 for pushing the armature away. The yoke 3 is fixedly connected to a mounting base 11, which is also shaped to be fixed to a fixed component on the mounted equipment, so that the friction plate 8 can be close to one side of the brake disc 12.

[0030] In this embodiment, the mounting base 11 is located outside the yoke 3, and the yoke 3 is fixedly connected to the mounting base 11. A protruding positioning pin 10 is inserted into and fixed on the contact surface of the yoke 3. The extended section of the positioning pin 10 is inserted into the positioning hole of the armature 2 and maintains a sliding fit, thereby enabling radial positioning of the armature 2. The friction plate 8 is directly attached to the outer end face of the armature 2 to achieve linkage between the friction plate 8 and the armature 2. This forms an external clamp-type electromagnetic brake with a mounting base.

[0031] In this embodiment, the yoke 3 is fixedly connected to the mounting base 11 as follows: a long bolt 4 passes through the through hole of the mounting base 11, and its front screw is threaded into a corresponding screw hole on the yoke 3. An internal thread section is machined in the opening on the side of the through hole of the yoke opposite to the mounting base. An adjusting bolt 1 with an axial mandrel is threaded into the internal thread section of the through hole of the yoke. The nut of the adjusting bolt 1 rests against the mounting base 11, and the screw of the long bolt 4 passes through the axial mandrel of the adjusting bolt 1. This allows the yoke 3 to be directly fixedly connected to the mounting base 11. Simultaneously, by tightening the adjusting bolt 1, the position of the yoke 3 can be slightly adjusted, thereby adjusting the gap between the friction plate 8 and the brake disc 12 via the armature 2, thus also achieving adjustment of the brake clearance.

[0032] When the electromagnetic coil 5 is de-energized, the electromagnetic attraction disappears, and the brake spring 6 presses the friction plate 8 against the surface of the brake disc 12 via the armature 2. Braking is achieved by the friction between the friction plate 8 and the brake disc 12. At this time, there is a gap between the armature 2 and the yoke 3 (i.e., Figure 3 The air gap A in the brake is equal in size to the brake clearance of the brake. When the electromagnetic coil 5 is energized, the generated electromagnetic attraction force overcomes the resistance of the brake spring 6, causing the friction pad 8 to disengage from the brake disc 12, the friction force disappears, and the brake is released. At this time, the armature 2 and the yoke 3 are in contact, and the air gap A disappears.

[0033] When the friction pad 8 wears out, the air gap A of the brake will increase. If the air gap becomes too large, it will lead to insufficient braking force, reduced electromagnetic attraction force, or even failure to engage the armature. At this time, the long rod bolt 4 can be loosened and the adjusting bolt 1 can be turned to restore the air gap A to its initial value, thereby adjusting the brake clearance of the brake.

[0034] Example 4

[0035] like Figure 4 As shown, in this embodiment, a set of externally mounted clamp-type electromagnetic brakes, as described in Embodiment 3, is configured on each of the two sides of the brake disc 12. The mounting bases 11 of the two clamp-type electromagnetic brakes form an integrated portal frame structure through the upper connecting section, allowing the two clamp-type electromagnetic brakes to be positioned opposite each other. The two clamp-type electromagnetic brakes are preferably symmetrically arranged, but asymmetrical arrangements are possible in special cases. This allows for the placement of a brake on each side of the brake disc 12, braking the brake disc from both sides. The two brakes can be controlled independently, and the clamping forces generated on both sides of the brake disc 12 can be the same or different. This satisfies the high reliability requirements of dual-brake braking for the equipment.

[0036] Of course, instead of setting an intermediate connecting section on the mounting base 11 on the two brakes, the two clamp-type electromagnetic brakes in Embodiment 3 can be arranged opposite each other on both sides of the equipment brake disc, thereby forming a dual brake configuration of the equipment.

Claims

1. A caliper-type electromagnetic brake capable of unilateral braking, comprising a yoke, an armature, and friction pads, wherein an electromagnetic coil for attracting the armature and a brake spring for pushing the armature away are installed in the yoke, and the friction pads of the brake disc of the braking device are linked with the armature, characterized in that... The yoke is fixedly connected to the mounting base, which is shaped to be fixed to the fixed component of the installed equipment so that the friction pad can be close to one side of the equipment's brake disc.

2. The caliper-type electromagnetic brake capable of unilateral braking according to claim 1, characterized in that, The mounting base is located outside the armature, and a window opposite the armature is provided on the mounting base; a pad made of non-magnetic metal material is fixedly connected to the armature, and a friction pad is attached to the outer end face of the pad. The pad protrudes from the window of the mounting base so that the friction pad is close to the surface of the brake disc.

3. The caliper-type electromagnetic brake capable of unilateral braking according to claim 2, characterized in that, The yoke is fixedly connected to the mounting base in the following manner: a long bolt passes through the through hole of the yoke, and its front screw is threaded into the screw hole on the mounting base; an internal thread section is machined in the opening on the side of the through hole of the yoke opposite the armature; an adjusting bolt with an axial mandrel passes through the through hole on the armature from the outside of the armature and is threaded into the internal thread section of the through hole of the yoke; the section of the adjusting bolt that passes through the armature is a smooth section; the nut of the adjusting bolt rests against the mounting base; and the screw of the long bolt passes through the axial mandrel of the adjusting bolt.

4. The caliper-type electromagnetic brake capable of unilateral braking according to claim 2, characterized in that, in Each side of the equipment's brake disc is equipped with a set of clamp-type electromagnetic brakes. The mounting bases of the two clamp-type electromagnetic brakes are connected by an upper section to form an integrated portal frame structure, allowing the two clamp-type electromagnetic brakes to be positioned opposite each other.

5. The caliper-type electromagnetic brake capable of unilateral braking according to claim 4, characterized in that, The two clamp-type electromagnetic brakes are each controlled independently.

6. The caliper-type electromagnetic brake capable of unilateral braking according to claim 1, characterized in that, The mounting base is located outside the yoke, and the yoke is fixedly connected to the mounting base. A protruding positioning pin is inserted and fixed on the yoke's contact surface. The extended section of the positioning pin is inserted into the positioning hole of the armature and maintains a sliding fit. The friction plate is attached to the armature.

7. The caliper-type electromagnetic brake capable of unilateral braking according to claim 6, characterized in that, The yoke is fixedly connected to the mounting base by a long bolt passing through the through hole of the mounting base, with its front screw threaded into the screw hole on the yoke; an internal thread section is machined in the opening on the side of the through hole of the yoke opposite to the mounting base, and an adjusting bolt with an axial mandrel is threaded into the internal thread section of the through hole of the yoke, with the nut of the adjusting bolt resting against the mounting base, and the screw of the long bolt passing through the axial mandrel of the adjusting bolt.

8. The caliper-type electromagnetic brake capable of unilateral braking according to claim 6, characterized in that, in Each side of the equipment's brake disc is equipped with a set of clamp-type electromagnetic brakes. The mounting bases of the two clamp-type electromagnetic brakes are connected by an upper section to form an integrated portal frame structure, allowing the two clamp-type electromagnetic brakes to be positioned opposite each other.

9. The caliper-type electromagnetic brake capable of unilateral braking according to claim 8, characterized in that, The two clamp-type electromagnetic brakes are each controlled independently.

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