Electromagnetic brake with air gap convenient to adjust

Abstract

The utility model relates to the technical field of brakes, and provides an electromagnetic brake convenient to adjust an air gap, which comprises a stator, an armature and a brake disc which are sequentially arranged in the axial direction, and further comprises a dustproof flange cover, the dustproof flange cover is arranged outside the stator in a matched mode, and the brake disc is arranged between the dustproof flange cover and the armature; an air gap measuring hole is formed in the side of the dustproof flange cover, and a locking screw used for abutting against the stator is screwed into the side of the dustproof flange cover. According to the utility model, the air gap can be adjusted more quickly and conveniently, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, and more specifically, to an electromagnetic brake that facilitates the adjustment of the air gap. Background Art

[0002] An electromagnetic brake, commonly known as a brake or a brake, is a mechanical part used to stop or decelerate a moving part in a machine. It can convey the torque on the active side to the connector on the passive side and can be freely combined, disengaged, or braked as needed. When an electric current passes through the magnetic coil of the electromagnetic brake, the electromagnetic force attracts the brake pads, causing the brake pads to release the brake disc. At this time, the transmission shaft drives the brake disc to rotate or start normally. When the electric current of the electromagnetic brake is cut off, the brake pads disengage from the brake disc, and a frictional torque is generated between the brake disc, the brake pads, and the flange, causing the transmission shaft to stop quickly.

[0003] For the conventional electromagnetic brake, to adjust the air gap, it is necessary to first loosen the mounting bolts, and then use a wrench to adjust the hollow screws. Moreover, during the adjustment, it is also necessary to note that the hollow screws on the same mounting bolt should be adjusted together to ensure their consistency. After the adjustment is completed, the mounting bolts are tightened. This method of adjustment is relatively inconvenient. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electromagnetic brake that facilitates the adjustment of the air gap, which can adjust the air gap more quickly and conveniently, and has a simple operation.

[0005] The utility model is realized through the following technical solutions: An electromagnetic brake that facilitates the adjustment of the air gap includes a stator, an armature, and a brake disc arranged axially in sequence, and also includes a dust-proof flange cover. The dust-proof flange cover is fitted outside the stator, and the brake disc is arranged between the dust-proof flange cover and the armature. An air gap measurement hole is opened beside the dust-proof flange cover, and a locking screw used to abut against the stator is screwed beside the dust-proof flange cover.

[0006] Furthermore, a stop is opened on the outside of the stator, and several adjusting gaskets are sleeved on the stop. The adjusting gaskets are clamped between the stop and the dust-proof flange cover.

[0007] Furthermore, the outer surface of the dust-proof flange cover is threadedly connected to the stator; an installation screw is also included. The installation screw passes through the stator and the dust-proof flange cover in sequence, and a screw clearance groove is opened on the dust-proof flange cover.

[0008] Furthermore, the radian of the screw clearance groove is 60° - 100°.

[0009] Furthermore, the width of the screw clearance groove is the same as the diameter of the installation screw.

[0010] Furthermore, friction plates are embedded and installed on both side end surfaces of the brake disc.

[0011] Furthermore, the air gap measurement hole is arranged between the stator and the armature.

[0012] The technical solution of the utility model has at least the following advantages and beneficial effects: the utility model realizes air gap adjustment by two methods: arranging different numbers of adjusting gaskets between the stopper of the dustproof flange cover and the stator or screwing the dustproof flange cover close to the stator thread, and then observing the air gap through the air gap measuring hole. After the adjustment is completed, the stator is supported by a locking screw to lock the dustproof flange cover, thereby realizing the effect of quickly adjusting the air gap, the operation is simple and convenient, and the air gap adjustment accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of an electromagnetic brake that facilitates air gap adjustment provided in Example 1 of the utility model;

[0015] Figure 2 It is a front view of the electromagnetic brake for adjusting the air gap in Embodiment 1 of the utility model;

[0016] Figure 3 A schematic diagram of the structure of the dustproof flange cover of the electromagnetic brake that is convenient for adjusting the air gap in Example 1;

[0017] Figure 4 This is a schematic structural diagram of an electromagnetic brake that is convenient for adjusting the air gap in Embodiment 2 of the present utility model;

[0018] Figure 5 for Figure 4 A local enlarged view of point A in the figure.

[0019] Icons: 1- stator, 11- stopper, 2- armature, 3- brake disc, 31- friction plate, 4- dustproof flange cover, 41- air gap measuring hole, 42- screw avoidance groove, 5- locking screw, 6- mounting screw, 7- adjusting gasket. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] Embodiment 1: Refer to Figures 1 - 5 As shown, this Embodiment 1 is an electromagnetic brake facilitating air gap adjustment, including a stator 1, an armature 2, and a brake disc 3 arranged axially in sequence, and further including a dust-proof flange cover 4. The dust-proof flange cover 4 is suitably fitted outside the stator 1, and the brake disc 3 is arranged between the dust-proof flange cover 4 and the armature 2. An air gap measurement hole 41 is opened on the side of the dust-proof flange cover 4, and a locking screw 5 for abutting against the stator 1 is screwed into the side of the dust-proof flange cover 4. Specifically, the air gap is the distance between the armature 2 and the end face of the stator 1. By moving the dust-proof flange cover 4 closer to and away from the stator 1 to abut against the brake disc to control the movement of the armature 2, the effect of adjusting the air gap is achieved. The size of the gap is viewed through the air gap measurement hole 41. When adjusted to the appropriate position, at least two locking screws 5 on the periphery of the dust-proof flange cover 4 are tightened.

[0024] As Figure 1 shown, the dust-proof flange cover 4 in this embodiment is threadedly connected to the outer surface of the stator 1. It further includes mounting screws 6. The mounting screws 6 pass through the stator 1 and the dust-proof flange cover 4 in sequence, and a screw clearance groove 42 is opened on the dust-proof flange cover 4. Specifically, by loosening the locking screw 5, the dust-proof flange cover 4 is rotated and screwed into the stator 1 to adjust the size of the air gap, with higher adjustment accuracy. The mounting screws 6 can slide in the screw clearance groove 42.

[0025] More preferably, at least two screw clearance grooves 42 are arranged on the dust-proof flange cover 4 at equal intervals around its middle, and the radian of the screw clearance groove 42 is 60° - 100°.

[0026] It should be noted that the width of the clearance groove 42 for the screw is consistent with the diameter of the mounting screw 6, which has a certain positioning effect.

[0027] To improve the braking effect of the brake disc 3, friction plates 31 are embedded and installed on both end faces of the brake disc 3. The friction plates 31 can respectively contact and rub against the dust-proof flange and the armature 2.

[0028] Refer to Figure 1 As shown, the air gap measurement hole 41 is provided between the stator 1 and the armature 2.

[0029] Embodiment 2: On the basis of Embodiment 1, the difference between this Embodiment 2 and it is that a stop 11 is provided on the outside of the stator 1, and a number of adjusting washers 7 are sleeved on the stop 11. The adjusting washers 7 are clamped between the stop 11 and the dust-proof flange cover 4; specifically, the dust-proof flange cover 4 is removed and the number of the adjusting washers 7 is replaced, so as to achieve the effect of air gap adjustment.

[0030] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electromagnetic brake for adjusting air gap, comprising a stator (1), an armature (2) and a brake disc (3) arranged in sequence in the axial direction, characterized in that: It also includes a dustproof flange cover (4), wherein the dustproof flange cover (4) is adapted to fit the outside of the stator (1), and the brake disc (3) is arranged between the dustproof flange cover (4) and the armature (2); An air gap measurement hole (41) is provided on the side of the dustproof flange cover (4), and a locking screw (5) is screwed into the side of the dustproof flange cover (4) for tightening against the stator (1).

2. The electromagnetic brake with easy air gap adjustment according to claim 1, characterized in that: The stator (1) is provided with a stopper (11) on the outside, and a plurality of adjusting gaskets (7) are sleeved on the stopper (11). The adjusting gaskets (7) are clamped between the stopper (11) and the dustproof flange cover (4).

3. The electromagnetic brake with easy air gap adjustment according to claim 1, characterized in that: The dustproof flange cover (4) is threadably connected to the outer surface of the stator (1).

4. The electromagnetic brake with easy air gap adjustment according to claim 3 is characterized in that: It also includes a mounting screw (6), wherein the mounting screw (6) passes through the stator (1) and the dustproof flange cover (4) in sequence, and the dustproof flange cover (4) is provided with a screw avoidance groove (42).

5. The electromagnetic brake with easy air gap adjustment according to claim 4, characterized in that: The arc of the screw avoidance groove (42) is 60°-100°.

6. The electromagnetic brake with easy air gap adjustment according to claim 4, characterized in that: The width of the screw avoidance groove (42) is consistent with the diameter of the mounting screw (6).

7. The electromagnetic brake with easy air gap adjustment according to claim 1, characterized in that: Friction plates (31) are embedded and installed on both side end surfaces of the brake disc (3).

8. The electromagnetic brake with easy air gap adjustment according to claim 1, characterized in that: The air gap measurement hole (41) is arranged between the stator (1) and the armature (2).

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