Electromagnetic reverse type safety brake

Abstract

The utility model relates to the technical field of brakes, and discloses an electromagnetic reverse motion type safety brake which comprises a stator outer cylinder, an armature is arranged on one side of the stator outer cylinder, a gap is formed between the armature and the stator outer cylinder, a containing groove is formed in the inner wall of the stator outer cylinder, and the armature is arranged in the containing groove. A placement groove is formed in the stator outer cylinder, a telescopic rod is mounted on the inner wall of the positioning outer cylinder located in the placement groove, a magnet is mounted at the telescopic end of the telescopic rod, an iron contact is mounted on one side of the armature, and the telescopic rod and the magnet can be placed through the placement groove formed in the stator outer cylinder; the telescopic rod is matched with the containing groove and the gap between the stator outer cylinder and the armature, the magnet and the iron contact are attracted, when the gap between the armature and the stator outer cylinder becomes large, the armature can drive the iron contact to be away from the magnet, then the iron contact can be connected with an external equipment early warning device, and workers are reminded. Therefore, the brake can be overhauled, and the performance of the brake can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake, concretely to an electromagnetic reverse motion type safety brake. BACKGROUND

[0002] The traditional electromagnetic safety brake is composed of a stator (hereinafter referred to as stator) with an electromagnetic coil, an armature, a spring, a hollow screw pipe or a guide column, a rotor (hereinafter referred to as rotor) with friction material, a shaft sleeve, a flange and other parts. In the de-energized state, the armature is pressed towards the rotor, flange or end cover by the spring to form a braking torque. In the energized state, the armature is attracted to the stator by electromagnetic force to release the brake.

[0003] In the patent document with the authorized publication number CN206860723U, a fixed disc clamp type electromagnetic safety brake is disclosed, which comprises a flange, a rotor, a front armature, a stator and a rear armature arranged in order from front to back. The rotor is fixedly connected with a rotary shaft, and springs are embedded on the front and rear end faces of the stator. The front armature, stator and rear armature are connected together by adjusting bolts, and a gap is provided between the stator and the front and rear armatures. The flange and adjusting bolts are connected together by screws A. The brake is fastened on the fixed end cover of the equipment by a hollow screw pipe and screws B. The hollow screw pipe is threadedly connected with the stator through the flange and front armature, and the screws B are threadedly connected with the fixed end cover of the equipment through the stator and hollow screw pipe. It has the advantages of no operating noise, low rotor moment of inertia, high braking torque, not easy to lock in wet environment, easy to manufacture, convenient to install and adjust, etc.

[0004] In the traditional armature and stator outer cylinder, a gap is provided during installation, and this gap is generally set to 0.3 mm. When the armature moves in the stator outer cylinder, the gap changes, and when the gap becomes larger, it may cause performance degradation, occasional sparking and control accuracy reduction. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an electromagnetic reverse motion type safety brake, which solves the problem that in the traditional armature and stator outer cylinder, a gap is provided during installation, and this gap is generally set to 0.3 mm. When the armature moves in the stator outer cylinder, the gap changes, and when the gap becomes larger, it may cause performance degradation, occasional sparking and control accuracy reduction.

[0006] An embodiment of the present application provides an electromagnetic reverse safety brake, comprising a stator outer cylinder, an armature being provided on one side of the stator outer cylinder, a gap being provided between the armature and the stator outer cylinder, a placement groove being provided on the inner wall of the stator outer cylinder, a telescopic rod being installed on the inner wall of the positioning outer cylinder located inside the placement groove, a magnet being installed at the telescopic end of the telescopic rod, and an iron contact being installed on one side of the armature.

[0007] By adopting the above technical solution, the placement groove provided on the stator outer tube can be used to place the telescopic rod and the magnet, and the telescopic rod is adapted to the placement groove and the gap between the stator outer tube and the armature, and the magnet is attracted to the iron contact. When the gap between the armature and the stator outer tube becomes larger, the armature will drive the iron contact away from the magnet, and then the iron contact can be connected to the external device early warning device, thereby alerting the staff, and then the brake is maintained to ensure the performance of the brake.

[0008] Optionally, there are multiple groups of placement slots, and the multiple groups of placement slots are evenly arranged in a ring shape, and each group of placement slots is provided with a telescopic tube, a magnet and an iron contact.

[0009] By adopting the above technical solution, the telescopic tube, the magnet and the iron contacts are evenly arranged in a ring shape, which can better detect the gap.

[0010] Optionally, an electromagnetic ring is installed on the inner wall of the stator outer cylinder, and a stator inner cylinder is installed on the inner wall of the electromagnetic ring.

[0011] By adopting the above technical solution, the electromagnetic coil and the stator inner cylinder can be installed through the stator outer cylinder, thereby forming a stator.

[0012] Optionally, the inner wall of the stator inner cylinder is provided with a plurality of groups of movable grooves, and the inner wall of the stator inner cylinder located inside the plurality of groups of movable grooves is provided with a spring.

[0013] By adopting the above technical solution, the setting of the movable groove can play a role in placing the spring, and the spring can play a role in resetting.

[0014] Optionally, a rotor is provided on a side of the armature away from the stator outer cylinder, and a rotating shaft is provided inside the rotor.

[0015] By adopting the above technical solution, the arrangement of the rotor, the rotary shaft and the armature can achieve a braking effect.

[0016] Optionally, the outer wall of the rotor is provided with a flange.

[0017] By adopting the above technical solution, the flange can be used for installation.

[0018] Optionally, a plurality of sets of fixing screws are rotatably arranged in the inner wall of the stator outer cylinder, and the plurality of sets of fixing screws are rotatably arranged through the armature and the flange.

[0019] By adopting the above technical scheme, the fixing screws can be used for installing the stator outer cylinder, the armature and the flange.

[0020] Optionally, hollow screw pipes are threadedly installed on the outer wall of the plurality of sets of fixing screws away from the stator outer cylinder.

[0021] By adopting the above technical scheme, the hollow screw pipes can be used for abutting the brake and the motor shell.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The technical scheme of the present application can place the telescopic rod and the magnet in the placing groove arranged on the stator outer cylinder, and the gap between the telescopic rod and the placing groove, the stator outer cylinder and the armature is matched, and the magnet is adsorbed by the ferrous contact. When the gap between the armature and the stator outer cylinder becomes larger, the armature drives the ferrous contact away from the magnet, and then the ferrous contact can be connected with the external device warning device, thereby reminding the staff, and then the brake is overhauled, thereby ensuring the performance of the brake. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, with reference to the accompanying drawings:

[0025] Figure 1 It is a front view schematic diagram of the electromagnetic reverse motion type safety brake of the present application;

[0026] Figure 2 It is a front view partial cross-sectional view of the electromagnetic reverse motion type safety brake of the present application;

[0027] Figure 3 It is a left view schematic diagram of the electromagnetic coil of the electromagnetic reverse motion type safety brake of the present application;

[0028] Figure 4 It is a front view schematic diagram of the electromagnetic reverse motion type safety brake of the present application; Figure 3 It is an enlarged view of A in the above figure.

[0029] In the figure: 1, stator outer cylinder; 2, armature; 3, placing groove; 4, telescopic rod; 5, magnet; 6, ferrous contact; 7, electromagnetic coil; 8, stator inner cylinder; 9, movable groove; 10, spring; 11, gap; 12, rotor; 13, flange; 14, fixing screw; 15, hollow screw pipe. DETAILED DESCRIPTION

[0030] Please refer toFigures 1-4 The utility model provides a technical scheme: a kind of electromagnetic reverse motion type safety brake, including stator outer tube 1, the side of stator outer tube 1 is provided with armature 2, gap 11 is provided between armature 2 and stator outer tube 1, the inner wall of stator outer tube 1 is equipped with placing groove 3, the inner wall of positioning outer tube located in placing groove 3 is equipped with telescopic rod 4, the telescopic end of telescopic rod 4 is equipped with magnet 5, the side of armature 2 is equipped with iron contact 6;

[0031] The side of armature 2 away from stator outer tube 1 is provided with rotor 12, and the inside of rotor 12 is provided with rotary shaft, and the outer wall of rotor 12 is provided with flange 13, and a plurality of fixed screws 14 are rotatably arranged in the inner wall of stator outer tube 1, and the plurality of fixed screws 14 rotatably pass through armature 2 and flange 13, and the outer wall of the plurality of fixed screws 14 away from stator outer tube 1 is threadedly connected with hollow screw pipe 15.

[0032] In the technical scheme of the utility model, the placing groove 3 arranged on the stator outer tube 1 can place the telescopic rod 4 and the magnet 5, and the telescopic rod 4 is matched with the gap 11 between the placing groove 3, the stator outer tube 1 and the armature 2, and the magnet 5 is adsorbed by the iron contact 6, when the gap 11 between the armature 2 and the stator outer tube 1 becomes larger, the armature 2 drives the iron contact 6 away from the magnet 5, then the iron contact 6 can be connected with an external device warning device, then reminding the staff, then playing a role in the maintenance of the brake, ensuring the performance of the brake.

[0033] In addition, the rotor 12, the rotary shaft and the armature 2 can play a role in braking, the flange 13 can play a role in installation, the fixed screws 14 can play a role in installing the stator outer tube 1, the armature 2 and the flange 13, and the hollow screw pipe 15 can play a role in abutting the brake and the motor housing.

[0034] In the technical scheme of the utility model, as shown in Figure 3 A plurality of placing grooves 3 are arranged, and the plurality of placing grooves 3 are arranged in a ring shape, each placing groove 3 is provided with a telescopic tube, a magnet 5 and an iron contact 6, and the telescopic tube, the magnet 5 and the iron contact 6 are arranged in a ring shape, which can better detect the gap 11.

[0035] In the technical scheme of the utility model, as shown in Figure 2 The inner wall of the stator outer tube 1 is provided with an electromagnetic coil 7, and the inner wall of the electromagnetic coil 7 is provided with a stator inner tube 8, so that the stator outer tube 1 can install the electromagnetic coil 7 and the stator inner tube 8, thereby forming a stator.

[0036] In the technical scheme of the utility model, as shown in Figure 3As shown, the inner wall of the stator inner cylinder 8 is provided with a plurality of movable grooves 9, and the inner wall of the stator inner cylinder 8 inside the movable grooves 9 is provided with springs 10. The movable grooves 9 can place the springs 10, and the springs 10 can reset.

[0037] In use, first, the stator outer cylinder 1 can install the electromagnetic coil 7 and the stator inner cylinder 8 to form a stator, and the fixing screw 14 can install the stator outer cylinder 1, the armature 2 and the flange 13, and the hollow screw pipe 15 can abut against the brake and the motor shell, and the spring 10 can reset the armature 2. The placement groove 3 on the stator outer cylinder 1 can place the telescopic rod 4 and the magnet 5, and the telescopic rod 4 is matched with the gap 11 between the placement groove 3, the stator outer cylinder 1 and the armature 2, and the magnet 5 is adsorbed by the ferrous contact 6. When the gap 11 between the armature 2 and the stator outer cylinder 1 becomes larger, the armature 2 drives the ferrous contact 6 away from the magnet 5, and then the ferrous contact 6 can be connected with an external device warning device, thereby reminding the staff, and then the brake is overhauled to ensure the performance of the brake.

Claims

1. An electromagnetic inverse-acting safety brake, characterized by: The utility model relates to a magnetic switch, including stator outer tube (1), one side of stator outer tube (1) is provided with armature (2), gap (11) is provided between armature (2) and stator outer tube (1), the inner wall of stator outer tube (1) is opened and placed groove (3), telescopic rod (4) is installed in the inside of placed groove (3), the telescopic end of telescopic rod (4) is installed with magnet (5), one side of armature (2) is installed with iron contact (6).

2. An electromagnetic overrunning brake according to claim 1, wherein The placed groove (3) is opened with multiple groups, and multiple groups of the placed groove (3) are evenly arranged in a ring shape, and the position of each group of the placed groove (3) is provided with a telescopic tube, a magnet (5) and an iron contact (6).

3. An electromagnetic overrunning brake according to claim 1, wherein The inner wall of the stator outer tube (1) is provided with an electromagnetic coil (7), and the inner wall of the electromagnetic coil (7) is provided with a stator inner tube (8).

4. An electromagnetic overrunning brake according to claim 3, wherein The inner wall of the stator inner tube (8) is provided with a plurality of movable grooves (9), and the inner wall of the stator inner tube (8) inside the plurality of movable grooves (9) is provided with a spring (10).

5. An electromagnetic overrunning brake according to claim 1 wherein, The side, away from the stator outer tube (1), of the armature (2) is provided with a rotor (12), and the rotor (12) is provided with a rotary shaft.

6. An electromagnetic overrunning brake according to claim 5, wherein, The outer wall of the rotor (12) is provided with a flange (13).

7. An electromagnetic overcentre safety brake according to claim 6, characterised in that, A plurality of fixed screws (14) are rotatably arranged in the inner wall of the stator outer tube (1), and the plurality of fixed screws (14) rotatably pass through the armature (2) and the flange (13).

8. An electromagnetic overcentre safety brake according to claim 7, characterised in that, A plurality of hollow screw pipes (15) are threadedly installed on the outer wall of the side, away from the stator outer tube (1), of the plurality of fixed screws (14).

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