Brake releasing device of elevator brake

Abstract

The utility model provides a brake releasing device of an elevator brake. The brake releasing device of the elevator brake comprises a shell; the two sets of fixing rings are fixedly connected to the two sides of the shell correspondingly, the other end of each set of fixing ring is fixedly connected with a reset spring, the other ends of the two sets of reset springs are fixedly connected with movable plates through fixing pieces correspondingly, and the adjacent sides of the two movable plates are fixedly connected with second electromagnets correspondingly; the positions, close to the four corners, of the adjacent sides of the two movable plates are fixedly connected with connecting rods, the other ends of each set of connecting rods are fixedly connected with supporting rings, the adjacent sides of the two supporting rings are fixedly connected with friction rings, and a rotating shaft with a brake wheel is arranged between the two friction rings. According to the brake releasing device of the elevator brake, synchronous braking and synchronous brake releasing at the two ends of the friction ring can be achieved through the structure, and the situation that rotation of the rotating shaft is affected due to the fact that brake releasing is not in place is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator brake release, in particular to an elevator brake release device. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. There are also stepped types, with treads mounted on tracks and running continuously, commonly known as escalators or moving walkways, which are fixed lifting equipment that serve specified floors.

[0003] The brake used on the elevator is an important safety device of the elevator. Its safety and reliability are one of the important factors to ensure the safe operation of the elevator. The bidirectional thrust elevator brake generates bidirectional electromagnetic thrust when power is turned on, so that the brake mechanism is separated from the rotating part of the motor. When the power is off, the electromagnetic force disappears, and under the action of the external brake spring pressure, a friction brake with power-off braking is formed.

[0004] Traditional elevator brakes generally use an electromagnet to drive one end of the friction ring in the brake to move, but when the brake needs to be released, it is easy to fail to release it, thus affecting the normal rotation of the shaft inside the brake.

[0005] Therefore, it is necessary to provide an elevator brake release device to solve the above technical problems. Utility Model Content

[0006] The utility model provides an elevator brake release device, which solves the problem that the traditional elevator brake uses the movable end of a friction ring for braking, but is prone to inadequate release during release, thus affecting the normal rotation of the internal shaft of the brake.

[0007] In order to solve the above technical problems, the utility model provides an elevator brake release device comprising: a housing;

[0008] Two groups of fixing rings, the two groups of fixing rings are fixedly connected to both sides of the shell, the other end of each group of fixing rings is fixedly connected to a reset spring, the other ends of the two groups of reset springs are fixedly connected to a movable plate through a fixing plate, the adjacent sides of the two movable plates are fixedly connected to a second electromagnet, the adjacent sides of the two movable plates are fixedly connected to connecting rods near the four corners, the other end of each group of connecting rods is fixedly connected to a supporting ring, the adjacent sides of the two supporting rings are fixedly connected to a friction ring, and a rotating shaft with a brake wheel is arranged between the two friction rings;

[0009] Two first electromagnets are respectively fixedly connected to two sides of the shell, and both sides of the shell are fixedly connected with connectors, and two connecting wires are installed at the bottom of the connectors.

[0010] Four fixing rings form a group, and a hole is opened on the fixing ring to allow the connecting rod to move. Four reset springs form a group, and the reset spring is sleeved on the outer surface of the connecting rod. The other end of the connecting wire is respectively connected to the first electromagnet and the second electromagnet to provide power to them, so that the first electromagnet and the second electromagnet can attract or repel each other after being energized.

[0011] Preferably, the front and back sides of the shell are fixedly connected with mounting plates, and one end of the mounting plates is provided with a plurality of mounting holes.

[0012] The mounting plate is convenient for connecting the housing and corresponding equipment.

[0013] Preferably, two mounting bars are fixedly connected to both sides of the shell, and the other side of the mounting bars is provided with a card slot.

[0014] Preferably, a clamping strip is provided inside each of the clamping slots, one side of each group of the clamping strips is fixedly connected to a protective cover, and one side of the protective cover is fixedly connected to a pull bolt.

[0015] The card strip is inserted into the card slot, and two card strips on the same side form a group.

[0016] Preferably, one side of the two support rings facing away from each other is fixedly connected with a mounting plate, and the other end of the mounting plate is fixedly connected with a pull rod.

[0017] The other ends of the two pull rods are located on the opposite sides of the two movable plates.

[0018] Preferably, one side of the movable plate is provided with a through opening, and both sides of the shell are provided with holes through which the connecting rod and the pull rod can pass.

[0019] The hole is to facilitate the passage of the pull rod.

[0020] Compared with the related art, the elevator brake release device provided by the utility model has the following beneficial effects:

[0021] The utility model provides an elevator brake releasing device. In order to allow the elevator brake to be released in place when the brake is released, four return springs are first installed on both sides of a shell through four fixing rings, and a movable plate is installed on both sides of the shell through two groups of return springs and fixing plates. Then, four connecting rods that penetrate the shell are fixedly connected to one side of the movable plate close to the shell, and then a supporting ring with a friction ring is fixed to the other end of the two groups of connecting rods, so that the two friction rings are located on the outer surface of the brake wheel, and a first electromagnet and a second electromagnet are respectively installed between the movable plate and the shell. When braking is required, only the first electromagnet and the second electromagnet need to be started to repel each other, so that the brake wheel can be braked through the friction ring. When releasing the brake, only the first electromagnet and the second electromagnet need to be started to attract each other. The friction ring can be synchronously moved away from the brake wheel through the cooperation of the return spring to play the role of releasing the brake. Synchronous braking and synchronous releasing of the two ends of the friction ring can be achieved through the structure, thereby avoiding the situation that the rotation of the rotating shaft is affected by the inadequate release of the brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of an elevator brake release device provided by the utility model;

[0023] Figure 2 A structural schematic diagram of a movable plate is provided for the utility model;

[0024] Figure 3 A structural schematic diagram of a mounting strip is provided for the utility model;

[0025] Figure 4 A structural schematic diagram of a fixing ring is provided for the utility model;

[0026] Figure 5 Provided for the utility model Figure 4 An enlarged view of point A is shown.

[0027] Numbers in the figure: 1, housing, 2, protective cover, 3, pull bolt, 4, rotating shaft, 5, support ring, 6, brake wheel, 7, mounting hole, 8, mounting plate, 9, friction ring, 10, reset spring, 11, connector, 12, connecting line, 13, first electromagnet, 14, second electromagnet, 15, through-mouth, 16, pull rod, 17, fixing plate, 18, movable plate, 19, connecting rod, 20, fixing ring, 21, clamping strip, 22, mounting strip, 23, clamping groove, 24, mounting plate. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of an elevator brake release device provided by the utility model; Figure 2 A structural schematic diagram of a movable plate is provided for the utility model; Figure 3 A structural schematic diagram of a mounting strip is provided for the utility model; Figure 4 A structural schematic diagram of a fixing ring is provided for the utility model; Figure 5 Provided for the utility model Figure 4 An enlarged view of point A is shown. The elevator brake release device comprises: a housing 1;

[0030] Two groups of fixing rings 20, the two groups of fixing rings 20 are fixedly connected to both sides of the housing 1, the other end of each group of fixing rings 20 is fixedly connected to a reset spring 10, the other ends of the two groups of reset springs 10 are fixedly connected to a movable plate 18 through a fixing plate 17, the adjacent sides of the two movable plates 18 are fixedly connected to a second electromagnet 14, the adjacent sides of the two movable plates 18 are fixedly connected to a connecting rod 19 near the four corners, the other end of each group of connecting rods 19 is fixedly connected to a supporting ring 5, the adjacent sides of the two supporting rings 5 ​​are fixedly connected to a friction ring 9, and a rotating shaft 4 with a brake wheel 6 is provided between the two friction rings 9;

[0031] Two first electromagnets 13 are respectively fixedly connected to two sides of the housing 1 , and both sides of the housing 1 are fixedly connected with connectors 11 , and two connecting wires 12 are installed at the bottom of the connectors 11 .

[0032] Four fixing rings 20 form a group, and a hole is opened on the fixing ring 20 to allow the connecting rod 19 to move. Four reset springs 10 form a group, and the reset spring 10 is sleeved on the outer surface of the connecting rod 19. The other end of the connecting line 12 is respectively connected to the first electromagnet 13 and the second electromagnet 14 to provide power so that the first electromagnet 13 and the second electromagnet 14 can attract or repel each other after being energized. The first electromagnet 13 and the second electromagnet 14 are annular, and there are holes in the middle. After the internal structure of the shell 1 is formed, it becomes the elevator brake.

[0033] The front and back sides of the housing 1 are fixedly connected with mounting plates 8 , and one end of the mounting plates 8 is provided with a plurality of mounting holes 7 .

[0034] The mounting plate 8 is used to facilitate the connection between the housing 1 and the corresponding equipment, and the mounting hole 7 is used to facilitate the passage of bolts.

[0035] Two mounting bars 22 are fixedly connected to both sides of the housing 1 , and a slot 23 is formed on the other side of each mounting bar 22 .

[0036] The mounting strips 22 are located on both sides of the housing at the bottom and bottom.

[0037] A clamping strip 21 is disposed inside each clamping slot 23 , one side of each set of clamping strips 21 is fixedly connected to a protective cover 2 , and one side of the protective cover 2 is fixedly connected to a pull bolt 3 .

[0038] The clamping strip 21 is inserted into the clamping slot 23 , and two clamping strips 21 on the same side form a group. The protective cover 2 can cover the structures on both sides of the housing 1 to play a protective role.

[0039] The two supporting rings 5 ​​are fixedly connected to the opposite sides thereof with mounting plates 24 , and the other ends of the mounting plates 24 are fixedly connected to the pull rods 16 .

[0040] The other ends of the two pull rods 16 are located on the opposite side of the two movable plates 18, and the pull rods 16 can assist in manually releasing the elevator brake.

[0041] A through hole 15 is formed on one side of the movable plate 18 , and holes are formed on both sides of the housing 1 for allowing the connecting rod 19 and the pull rod 16 to pass through.

[0042] The hole 15 is convenient for the pull rod 16 to pass through, and the elevator brake can be manually released.

[0043] The working principle of the elevator brake release device provided by the utility model is as follows:

[0044] First, four return springs 10 are installed on both sides of the shell 1 through four fixing rings 20, and the movable plate 18 is installed on both sides of the shell 1 through two groups of return springs 10 and fixing plates 17. Then, four connecting rods 19 that penetrate the shell 1 are fixedly connected to the side of the movable plate 18 close to the shell 1. Then, the support ring 5 with the friction ring 9 is fixed to the other end of the two groups of connecting rods 19, so that the two friction rings 9 are located on the outer surface of the brake wheel 6, and the first electromagnet 13 and the second electromagnet 14 are respectively installed between the movable plate 18 and the shell 1. When braking is required, only the first electromagnet 13 and the second electromagnet 14 need to be started to repel each other, so that the brake wheel 6 can be braked through the friction ring 9. When releasing the brake, only the first electromagnet 13 and the second electromagnet 14 need to be started to attract each other.

[0045] Compared with the related art, the elevator brake release device provided by the utility model has the following beneficial effects:

[0046] In order to allow the elevator brake to be released in place when the brake is released, four return springs 10 are first installed on both sides of the shell 1 through four fixing rings 20, and the movable plate 18 is installed on both sides of the shell 1 through two groups of return springs 10 and fixing plates 17. Then, four connecting rods 19 that penetrate the shell 1 are fixedly connected to the side of the movable plate 18 close to the shell 1. Then, the support ring 5 with the friction ring 9 is fixed to the other end of the two groups of connecting rods 19, so that the two friction rings 9 are located on the outer surface of the brake wheel 6, and the movable plate 18 and the shell 1 are respectively installed. The first electromagnet 13 and the second electromagnet 14 are equipped. When braking is needed, it is only necessary to start the first electromagnet 13 and the second electromagnet 14 to make the two repel each other, so that the brake wheel 6 can be braked through the friction ring 9. When releasing the brake is needed, it is only necessary to start the first electromagnet 13 and the second electromagnet 14 to make the two attract each other. Through the cooperation of the reset spring 10, the friction ring 9 can be synchronously moved away from the brake wheel 6 to play a role in releasing the brake. Through this structure, synchronous braking and synchronous releasing of the two ends of the friction ring 9 can be achieved, avoiding the situation where the rotation of the rotating shaft 4 is affected by the inadequate release of the brake.

[0047] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An elevator brake release device, characterized in that: include: case; Two groups of fixing rings, the two groups of fixing rings are fixedly connected to both sides of the shell, the other end of each group of fixing rings is fixedly connected to a reset spring, the other ends of the two groups of reset springs are fixedly connected to a movable plate through a fixing plate, the adjacent sides of the two movable plates are fixedly connected to a second electromagnet, the adjacent sides of the two movable plates are fixedly connected to connecting rods near the four corners, the other end of each group of connecting rods is fixedly connected to a supporting ring, the adjacent sides of the two supporting rings are fixedly connected to a friction ring, and a rotating shaft with a brake wheel is arranged between the two friction rings; Two first electromagnets are respectively fixedly connected to two sides of the shell, and both sides of the shell are fixedly connected with connectors, and two connecting wires are installed at the bottom of the connectors.

2. The elevator brake release device according to claim 1, characterized in that: The front and back sides of the shell are both fixedly connected with mounting plates, and one end of the mounting plates is provided with a plurality of mounting holes.

3. The elevator brake release device according to claim 1, characterized in that: Two mounting strips are fixedly connected to both sides of the shell, and the other sides of the mounting strips are provided with card slots.

4. The elevator brake release device according to claim 3, characterized in that: A clamping strip is arranged inside each clamping slot, one side of each group of clamping strips is fixedly connected to a protective cover, and one side of the protective cover is fixedly connected to a pull bolt.

5. The elevator brake release device according to claim 1, characterized in that: The two supporting rings are fixedly connected to mounting plates on one side opposite to the other, and the other ends of the mounting plates are fixedly connected to pull rods.

6. The elevator brake release device according to claim 1, characterized in that: One side of the movable plate is provided with a through opening, and both sides of the shell are provided with holes through which the connecting rod and the pull rod can pass.

Images