Flexible adjustable brake

Abstract

The utility model relates to the technical field of brakes, and provides a flexible adjustable brake which comprises a magnet yoke, an armature, a rotor and a flange, a first brake spring is arranged between the magnet yoke and the armature, the flexible adjustable brake further comprises a stroke component arranged in the magnet yoke, and a second brake spring is arranged between the stroke component and the end face of the armature. The output torque of the brake can be flexibly increased or decreased according to the control requirements of practical application products.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, and more specifically, to a flexible adjustable brake. Background Art

[0002] An electromagnetic brake is a device that uses electromagnetic effects to achieve braking functions. An electromagnetic brake is a connector that transmits the driving torque on the active side to the passive side, and can be freely combined, disengaged or braked as needed. It can also stop or decelerate the moving parts in a machine, so it is commonly called a brake or a brake.

[0003] For existing electromagnetic brakes, their braking torque is determined by the spring pressure in the power-off state, and their torque values are usually fixed and cannot be flexibly adjusted according to the requirements of the system working conditions. If the brake is set according to the maximum torque, there will be a situation of threshold waste; in the process of unmanned and intelligent operation, it is necessary to enable the output torque of the brake to be flexibly adjusted according to the requirements of the system working conditions. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a flexible adjustable brake that can adjust and increase the braking torque to meet the usage requirements of a forklift when fully loaded and unloaded.

[0005] The utility model is realized through the following technical solutions: A flexible adjustable brake includes a yoke, an armature, a rotor and a flange. A first braking spring is provided between the yoke and the armature. It further includes a stroke component arranged in the yoke, and a second braking spring is provided between the stroke component and the end face of the armature.

[0006] Further, the stroke component is arranged in the middle of the yoke, and an installation through hole for placing the second braking spring is provided in the middle of the yoke.

[0007] Further, an elastic member is embedded in the yoke, and the elastic member abuts against the stroke component.

[0008] Further, friction linings are provided on both sides of the rotor.

[0009] Further, it also includes a first fastener, and the first fastener passes through the stroke component and is connected to the yoke.

[0010] Further, the stroke component is a hydraulic cylinder, a pneumatic cylinder or a motor.

[0011] Further, it also includes a joint, and the joint is installed on the stroke component and is connected to it in communication.

[0012] Further, a second fastener is connected between the yoke and the flange.

[0013] The technical solution of the present utility model has at least the following advantages and beneficial effects: By arranging the first braking spring and the second braking spring to act on the armature together, and the second braking spring abuts against the stroke component, the torque value acting on the armature is adjustable, thereby increasing the braking torque of the armature and being adjustable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present 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 some embodiments of the present utility model and should not be regarded as limiting the scope.

[0015] Figure 1 It is a schematic structural diagram of a flexible adjustable brake provided for an embodiment of the present utility model;

[0016] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0017] Reference numerals: 1 - yoke, 11 - mounting through hole, 2 - armature, 3 - rotor, 31 - friction lining, 4 - flange, 5 - first braking spring, 6 - second braking spring, 7 - stroke component, 71 - joint, 8 - second fastener, 9 - first fastener, 10 - elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] 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 drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the 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.

[0020] It should be noted that similar reference numerals and letters indicate 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.

[0021] The following is further described in conjunction with specific embodiments. Refer to Figures 1 - 2As shown in the figure, this embodiment is a flexible adjustable brake, which includes a yoke 1, an armature 2, a rotor 3 and a flange 4. A first brake spring 5 is provided between the yoke 1 and the armature 2. It also includes a stroke component 7 provided in the yoke 1, and a second brake spring 6 is provided between the stroke component 7 and the end face of the armature 2. Specifically, by arranging the second brake spring 6 in the yoke 1 to press against the armature 2, the compression of the second brake spring 6 is determined by the stroke distance of the stroke component 7. By the combined action of the first brake spring 5 and the second brake spring 6, the torque of the brake is adjusted in real time. The torque value of the first brake spring 5 is constant, while the lateral movement of the stroke component 7 drives the change of the compression amount of the second brake spring 6, and the torque received by the armature 2 is different, so that the brake meets the requirements better when applied to a forklift.

[0022] It should be noted that the stroke component 7 is a hydraulic cylinder, a pneumatic cylinder or a motor.

[0023] Refer to Figure 2 As shown in the figure, in this embodiment, the stroke component 7 is arranged in the middle of the yoke 1, and an installation through hole 11 for placing the second brake spring 6 is provided in the middle of the yoke 1. Specifically, an empty notch is opened on the back of the yoke 1 for installing the stroke component 7, and the second brake spring 6 is stuck between the telescopic end of the stroke component 7 and the end face of the armature 2.

[0024] As Figure 2 As shown in the figure, an elastic member 10 is embedded and installed in the yoke 1, and the elastic member 10 is in contact with the stroke component 7. Specifically, the elastic member 10 can assist the stroke component 7 to reset, and can also be used as a starting limiter for the stroke component 7.

[0025] In order to increase the friction force when the rotor 3 brakes, friction linings 31 are provided on both sides of the rotor 3. The friction linings 31 are in contact and friction with the armature 2 and the flange 4 respectively, shortening the braking time.

[0026] This embodiment also includes a first fastener 9. The first fastener 9 passes through the stroke component 7 and is connected to the yoke 1. Specifically, the first fastener 9 uses at least two long-head bolts to pass through the stroke component 7 and is threadedly connected and fixed to the yoke 1, which is very convenient for disassembly and installation.

[0027] As Figure 1 and Figure 2 As shown in the figure, this embodiment also includes a joint 71. The joint 71 is installed on the stroke component 7 and is connected to it. Specifically, when the stroke component 7 is a pneumatic cylinder, this joint 71 is connected to an air pipe.

[0028] In order to connect the brake as a whole, a second fastener 8 is connected between the yoke 1 and the flange 4. Specifically, the second fastener 8 uses a long-head bolt to pass through the yoke 1, the armature 2 and the flange 4 in sequence, and the armature 2 can move axially along the second fastener 8.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flexible adjustable brake, comprising a yoke (1), an armature (2), a rotor (3) and a flange (4), wherein a first brake spring (5) is provided between the yoke (1) and the armature (2), and is characterized in that: It further includes a stroke component (7) disposed in the yoke (1), and a second braking spring (6) is provided between the stroke component (7) and the end face of the armature (2).

2. The flexible adjustable brake according to claim 1, wherein: The stroke component (7) is disposed in the middle of the yoke (1), and an installation through hole (11) for placing the second braking spring (6) is provided in the middle of the yoke (1).

3. The flexible adjustable brake according to claim 2, characterized in that: An elastic member (10) is embedded and installed in the yoke (1), and the elastic member (10) abuts against the stroke component (7).

4. The flexible adjustable brake according to claim 1, wherein: Friction linings (31) are provided on both sides of the rotor (3).

5. The flexible adjustable brake according to claim 1, wherein: It further includes a first fastener (9), and the first fastener (9) passes through the stroke component (7) and is connected to the yoke (1).

6. The flexible adjustable brake according to claim 1, characterized in that: The stroke component (7) is a hydraulic cylinder, a pneumatic cylinder or a motor.

7. The flexible adjustable brake according to claim 6, characterized in that: It further includes a joint (71), and the joint (71) is installed on the stroke component (7) and is connected to it in communication.

8. The flexible adjustable brake according to claim 1, wherein: A second fastener (8) is connected between the yoke (1) and the flange (4).

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