Compact lightweight brake

Abstract

The utility model relates to the technical field of brakes, in particular to a compact light-weight brake which comprises a stator and a movable plate and further comprises a flange, the flange and the movable plate are arranged on the two sides of the stator respectively, a connecting piece is arranged between the flange and the movable plate to enable the flange and the movable plate to be connected into a whole, and the connecting piece penetrates through the stator. A rotor structure is installed in an inner hole of the stator in an embedded mode, and when the stator is powered off, the movable plate is far away from the stator and pulls the flange to be close to the rotor structure to generate braking contact. The brake provided by the utility model has smaller volume and size, and reduces the installation load and occupied space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake, specifically, a compact lightweight brake. BACKGROUND

[0002] The electromagnetic brake is a kind of brake that generates (or eliminates) braking function by the action of electromagnetic force.The principle of power-off brake is that its brake spring ejects armature to brake under the condition of magnetic yoke power-off, and power-on attracts armature to release brake.In many scenes with strict requirements on equipment performance and space layout, the drawbacks of traditional brake are obvious.For example, in the field of aerospace, its volume is large, weight is high, increases the load of aircraft and occupies space, and volume and weight have greater influence on rocket take-off;Therefore, it is necessary to design a small-size lightweight brake. SUMMARY

[0003] The utility model aims at providing a compact lightweight brake with smaller volume and size, reduces installation load and occupies space.

[0004] The utility model discloses the following technical scheme realizes: a compact lightweight brake, including stator and dynamic board, still including flange, the flange and the dynamic board are located at the both sides of the stator respectively, and the flange with the dynamic board between being equipped with connecting piece and being connected as a whole, pass through the stator by the connecting piece;The rotor structure is embedded and installed in the inner hole of the stator, when the stator power-off, the dynamic board is away from the stator and pulls the flange and produces brake contact close to the rotor structure.

[0005] Further, the rotor structure includes a shaft sleeve and a friction plate, and the friction plate is sleeved on the outside of the shaft sleeve.

[0006] Further, the shaft sleeve is provided with a limiting protrusion matched with the inner hole of the friction plate.

[0007] Further, the stator is provided with a first recess on one side end face for accommodating the flange.

[0008] Further, the depth of the first recess is consistent with the thickness of the flange.

[0009] Further, the stator is provided with a second recess on the side close to the first recess, and the second recess is used for accommodating the friction plate.

[0010] Further, the shaft sleeve is a polygonal structure.

[0011] Further, the connecting piece is a screw.

[0012] The utility model discloses a technical scheme has at least the following advantages and beneficial effects: the utility model discloses a friction plate and flange are placed in the recessed groove in the stator, effectively reduce the thickness of the whole electromagnetic brake, and the size volume of brake is smaller, and the overall weight is lightened, make it satisfy higher demand product such as aerospace equipment's ultrathin, light weight demand. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the internal structure schematic diagram of compact lightweight brake in the utility model;

[0014] Figure 2 It is Figure 1 The local enlarged schematic view of A in the utility model;

[0015] Figure 3 It is the structure schematic diagram of one side of brake moving plate in the utility model.

[0016] Sign significance: 1 - stator, 11 - first recess, 12 - second recess, 2 - moving plate, 3 - flange, 4 - rotor structure, 41 - shaft sleeve, 411 - limit protruding, 42 - friction plate, 5 - connecting piece. DETAILED DESCRIPTION

[0017] The following is further explained in conjunction with specific embodiments, referring to Figures 1-3 The utility model discloses a compact lightweight brake, including stator 1 and moving plate 2, still including flange 3, flange 3 and moving plate 2 are located at both sides of stator 1 respectively, and the connecting piece 5 is established between flange 3 and moving plate 2 and is integrated, passes through stator 1 through connecting piece 5;The rotor structure 4 is embedded in the inner hole of stator 1 and is installed, when stator 1 is powered off, moving plate 2 is away from stator 1 and pulls flange 3 and approaches rotor structure 4 and produces brake contact;Specifically, the utility model discloses a rotor structure 4 is installed in stator 1, makes it with the thickness size of stator 1 and forms the superposition, and moving plate 2 and flange 3 are located at the left and right sides of stator 1 respectively, moving plate 2 and flange 3 will move synchronously, when stator 1 is powered, the magnetic field force of electromagnetic coil attracts moving plate 2 and moves axially to one side of stator 1 direction, flange 3 is away from stator 1 and separates from rotor structure 4 and brake contact, at this moment, the clearance between moving plate 2 and stator 1 disappears;Conversely, when stator 1 is powered off, moving plate 2 is pushed away from stator 1 movement by elastic force, and the clearance between rotor structure 4 and flange 3 disappears, produces friction force and makes it unable to rotate, realizes brake contact, and its structure reduces the thickness size of brake, and the volume is smaller, and the space occupied by installation is smaller.

[0018] As Figure 1As shown, the rotor structure 4 in some embodiments includes a shaft sleeve 41 and a friction plate 42, the friction plate 42 is sleeved on the outside of the shaft sleeve 41; Specifically, there is axial limiting between the friction plate 42 and the shaft sleeve 41 to avoid relative displacement between the friction plate 42 and the shaft sleeve 41 from falling off.

[0019] As an option, the outside of the shaft sleeve 41 is provided with a limiting protrusion 411 matched with the inner hole of the friction plate 42, the limiting protrusion 411 is a protruding pattern, which forms mechanical interference during braking to prevent displacement of the friction plate 42 and ensure the stability of the braking effect.

[0020] In order to further reduce the thickness size of the brake, a first recess 11 is arranged on one side end face of the stator 1 to adapt the access of the flange 3, specifically, the flange 3 will enter the first recess 11 during braking, and in order to improve the appearance of the brake, the depth of the first recess 11 is kept consistent with the thickness of the flange 3.

[0021] As an option, the stator 1 is provided with a second recess 12 near the side of the first recess 11, and the second recess 12 is used for the friction plate 42 to fit into; Specifically, the first recess 11 and the second recess 12 in the stator 1 are both inner recesses at the inner hole, the friction plate 42 is arranged in the second recess 12, and the flange 3 is arranged in the first recess 11, both of which make use of the internal space of the stator 1, thereby achieving the effect of reducing the volume and weight of the brake.

[0022] It is possible that the shaft sleeve 41 is a polygonal structure, which can avoid relative misplacement between the shaft sleeve 41 and the friction plate 42 during rotation.

[0023] As an option, the connecting piece 5 adopts a screw, and after the screw is completely tightened, the screw is flush with the moving plate 2.

[0024] In the actual application of space vehicles, the advantages of the small volume and low weight brake are fully reflected. The thickness can be less than 10mm, and the minimum can reach 7mm, which can perfectly adapt to the narrow space inside the vehicle and realize efficient braking in limited layout. During the execution of the task of the vehicle, the low weight characteristic of the brake reduces the overall load of the vehicle, which helps to improve the energy utilization efficiency and reduce the consumption of propellant, thereby prolonging the service life of the vehicle and ensuring its stable operation in complex space environment. In addition, the design of the brake can also meet the requirements in some space exploration devices with high requirements on weight and volume. For example, in the orbit adjustment device of a small space probe, the small volume and low weight characteristics of the brake not only do not increase the load of the probe too much, but also provide reliable braking function to ensure the probe to operate according to the predetermined orbit and complete the detection task smoothly.

[0025] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A compact and lightweight brake comprising a stator (1) and a moving plate (2), characterized in that: Also include flange (3), the flange (3) and the moving plate (2) are respectively arranged on both sides of the stator (1), and the flange (3) and the moving plate (2) are connected by connecting piece (5) and are integrated, pass through the stator (1) through the connecting piece (5); The rotor structure (4) is embedded and installed in the inner hole of the stator (1), when the stator (1) is powered off, the moving plate (2) is away from the stator (1) and pulls the flange (3) to be close to the rotor structure (4) to produce brake contact.

2. The compact and lightweight brake according to claim 1, characterized by: The rotor structure (4) includes shaft sleeve (41) and friction plate (42), the friction plate (42) is sleeved on the outside of the shaft sleeve (41).

3. The compact and lightweight brake according to claim 2, characterized by: The outside of the shaft sleeve (41) is provided with limiting protrusion (411) matched with the inner hole of the friction plate (42).

4. The compact and lightweight brake according to any one of claims 2-3, characterized in that: The one side end surface of the stator (1) is provided with the first sunken groove (11) for adapting the flange (3) to access.

5. The compact and lightweight brake according to claim 4, characterized by: The depth of the first sunken groove (11) is consistent with the thickness of the flange (3).

6. The compact and lightweight brake according to claim 4, characterized by: The stator (1) is provided with the second sunken groove (12) near the one side of the first sunken groove (11), and the second sunken groove (12) is used for the friction plate (42) to adapt to be installed.

7. The compact and lightweight brake according to claim 2, characterized by: The shaft sleeve (41) is a polygonal structure.

8. The compact and lightweight brake according to claim 1, characterized by: The connecting piece (5) adopts screw.

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