Elevator brake with adjusting structure

Abstract

The utility model relates to the technical field of elevator brakes, in particular to an elevator brake with an adjusting structure, which comprises a mounting frame, a driving motor is fixed on the side wall of the mounting frame through bolts, and a power output shaft of the driving motor penetrates through the mounting frame and is fixedly provided with a brake disc. Two brake mechanisms for braking the elevator are arranged on the outer wall of the brake disc; the brake mechanism comprises two calipers, the two calipers are arranged on the two sides of the brake disc respectively, mounting grooves are formed in the two calipers, sliding blocks are connected into the mounting grooves in a sliding mode, a fixing plate is fixed to one side of each sliding block, and a friction plate is installed on the side wall of the fixing plate. Through the arranged brake mechanism, at the moment when the friction plate makes contact with the brake disc, the friction plate moves in the installation groove, the friction plate presses the rubber block, the rubber block deforms, a certain buffering effect is achieved, and therefore the pressure of an elevator on the brake is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator brakes, in particular to an elevator brake with an adjustment structure. Background Art

[0002] The elevator brake is a vital safety device in the elevator system. Its design and function ensure the safe and stable operation of the elevator. When the elevator is working normally, the brake is in the released state, the electromagnet core is not excited, the brake shoe is separated from the brake disc, and the elevator can run freely. When the elevator is powered off or stops running, the electromagnet core is excited, the brake shoe contacts the brake disc, and the brake generates a braking torque to stop the elevator.

[0003] The existing elevator brake does not effectively dissipate heat for the brake wheel, which will reduce the service life of the brake wheel;

[0004] The existing patent (publication number: CN214304943U) discloses an elevator brake, which includes a limit spring and a brake arm. It is provided with a heat dissipation cavity, a heat dissipation hole, a heat conductive sheet and a placement groove. When in use, the brake wheel performs friction braking on the brake sheet. The brake wheel will generate heat during friction. The heat conductive sheet inside the heat dissipation cavity can introduce the heat on the brake wheel into the interior of the heat dissipation cavity. After the introduction, the heat is discharged from the interior of the heat dissipation cavity through the heat dissipation hole.

[0005] In response to the above problems, the solution provided by the existing patent can conduct the heat on the brake wheel into the heat dissipation cavity through the heat conductive plate inside the heat dissipation cavity to improve the heat dissipation effect. However, when braking, the friction plate and the brake wheel will contact each other instantaneously, causing the weight of the elevator to be transferred to the brake, which may easily cause damage to the brake. Summary of the invention

[0006] The purpose of the utility model is to provide an elevator brake with an adjustment structure, which can make the friction plate and the brake disc contact instantly, so that the friction plate moves in the installation groove, the friction plate presses the rubber block, and the rubber block deforms to play a certain buffering role, thereby reducing the pressure of the elevator on the brake, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: an elevator brake with an adjustment structure, comprising a mounting frame, a driving motor is fixed to the side wall of the mounting frame by bolts, a power output shaft of the driving motor passes through the mounting frame and a brake disc is fixed thereto, and two brake mechanisms for braking the elevator are provided on the outer wall of the brake disc;

[0008] The braking mechanism includes a caliper, and two calipers are provided. The two calipers are respectively arranged on both sides of the brake disc, and mounting grooves are opened inside the two calipers. A slider is slidably connected inside the mounting groove. A fixing plate is fixed on one side of the slider, and a friction plate is installed on the side wall of the fixing plate. Two fixing screws threadedly connected to the fixing plate are installed inside the friction plate, and rubber blocks tightly fitting with the inner wall of the mounting groove are fixed at both ends of the friction plate.

[0009] Preferably, the lower ends of the two calipers are hinged with connecting blocks, and the lower end of the mounting frame is installed with two sets of fixing bolts.

[0010] Preferably, an electromagnet is fixed to the side wall of the upper end of the mounting frame by bolts, and an adjustment mechanism for adjusting the brake is fixed to the outer wall of the electromagnet.

[0011] Preferably, the adjustment mechanism comprises a connecting plate, two connecting plates are provided, the two connecting plates are both fixed to the outer wall of the electromagnet, and the side walls of the two connecting plates are both fixed with a first screw.

[0012] Preferably, a fixing block fixedly connected to the caliper penetrates the outer surface of the first screw rod, and a spring abutting against the fixing block is sleeved on the outer portion of the first screw rod.

[0013] Preferably, the end of the spring is abutted against a limiting ring sleeved on the first screw rod, and one side of the limiting ring is provided with two adjusting nuts threadably connected to the first screw rod.

[0014] Preferably, a second screw is fixed to the telescopic end of the electromagnet, and the second screw passes through the internal thread of the fixing block and is connected with a fixing nut.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The brake mechanism is set up so that the friction plate moves in the installation groove at the moment when the friction plate and the brake disc come into contact. The friction plate presses the rubber block, and the rubber block deforms to play a certain buffering role, thereby reducing the pressure of the elevator on the brake;

[0017] 2. Through the setting adjustment mechanism, by turning the adjustment nut, the position of the limit ring can be adjusted, so that the spring is compressed by the limit ring, and then the tension of the spring is adjusted, which is convenient for adjusting the brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the caliper of the utility model;

[0021] Figure 3 For the utility model Figure 1 A partial enlarged view of the middle part;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the electromagnet of the utility model.

[0023] Description of reference numerals:

[0024] 1. Mounting frame; 2. Driving motor; 3. Brake disc; 4. Caliper; 41. Mounting slot; 42. Slider; 43. Fixing plate; 44. Friction plate; 45. Fixing screw; 46. Rubber block; 5. Connecting block; 6. Fixing bolt; 7. Electromagnet; 8. Connecting plate; 81. First screw; 82. Fixing block; 83. Spring; 84. Limiting ring; 85. Adjusting nut; 9. Second screw; 10. Fixing nut. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution:

[0027] See also Figures 1 to 4 , an elevator brake with an adjustment structure, comprising a mounting frame 1, a driving motor 2 is fixed to the side wall of the mounting frame 1 by bolts, a power output shaft of the driving motor 2 passes through the mounting frame 1 and a brake disc 3 is fixed thereto, and two brake mechanisms for braking the elevator are arranged on the outer wall of the brake disc 3;

[0028] The brake mechanism includes a caliper 4. There are two calipers 4. The two calipers 4 are respectively arranged on both sides of the brake disc 3. The inside of the two calipers 4 is opened with a mounting groove 41. The inside of the mounting groove 41 is slidably connected with a slider 42. A fixing plate 43 is fixed to one side of the slider 42. A friction plate 44 is installed on the side wall of the fixing plate 43. Two fixing screws 45 threadedly connected to the fixing plate 43 are installed inside the friction plate 44. Both ends of the friction plate 44 are fixed with rubber blocks 46 that fit tightly with the inner wall of the mounting groove 41. The lower ends of the two calipers 4 are hinged with connecting blocks 5. The lower end of the mounting frame 1 is installed with two sets of fixing bolts 6.

[0029] By adopting the above technical solution, before using the elevator brake with an adjustment structure, the mounting frame 1 is first placed in a suitable position, and the mounting frame 1 is fixed by the fixing bolts 6. The provided brake disc 3 can be fixedly connected to the external steel rope pulley, and the provided drive motor 2 drives the brake disc 3 to rotate, thereby driving the elevator to move up and down. When the friction plate 44 and the brake disc 3 are instantly in contact, the brake disc 3 will transfer the weight of the elevator to the brake. Since rubber blocks 46 are provided at both ends of the friction plate 44, the brake disc 3 will drive the friction plate 44 to move in the mounting groove 41. At this time, the friction plate 44 will press the rubber block 46, and the rubber block 46 will deform to play a certain buffering role, thereby reducing the pressure of the elevator on the brake. The slider 42 provided on the fixing plate 43 can ensure the normal movement of the friction plate 44. By unscrewing the fixing screws 45 on the friction plate 44, the friction plate 44 can be disassembled for easy replacement.

[0030] Specifically, Figure 1-Figure 4 As shown, the side wall of the upper end of the mounting frame 1 is fixed with an electromagnet 7 by bolts, and the outer wall of the electromagnet 7 is fixed with an adjusting mechanism for braking adjustment, and the adjusting mechanism includes a connecting plate 8, and two connecting plates 8 are provided, and the two connecting plates 8 are fixed to the outer wall of the electromagnet 7, and the side walls of the two connecting plates 8 are fixed with a first screw 81, and the outer surface of the first screw 81 passes through a fixing block 82 fixedly connected to the caliper 4, and the outer surface of the first screw 81 is sleeved with a spring 83 abuttingly connected to the fixing block 82, and the end of the spring 83 is abuttingly connected with a limiting ring 84 sleeved on the first screw 81, and one side of the limiting ring 84 is installed with two adjusting nuts 85 threadedly connected to the first screw 81, and the telescopic end of the electromagnet 7 is fixed with a second screw 9, and the second screw 9 passes through the inner thread of the fixing block 82 and is connected with a fixing nut 10.

[0031] By adopting the above technical solution, when the elevator is running, the electromagnet 7 is energized to drive the two second screws 9 to move relative to each other. Since the second screw 9 is fixed by the fixing nut 10 and the fixing block 82, and is hingedly connected to the caliper 4 through the connecting block 5, the fixing block 82 pushes the caliper 4 to rotate, so that the friction plate 44 in the caliper 4 is separated from the brake disc 3, ensuring that the brake disc 3 can rotate normally. When braking, the electromagnet 7 is powered off, and the spring 83 arranged on the connecting plate 8 can push the fixing block 82 to reset under the action of the spring 83's own elongation elasticity, so that the fixing block 82 drives the caliper 4 to reset, and the stability of the fixing block 82 during movement can be ensured by the first screw 81, and the position of the limit ring 84 can be adjusted by twisting the adjusting nut 85, so that the spring 83 is compressed by the limit ring 84, and then the tension of the spring 83 is adjusted, which is convenient for adjusting the brake.

[0032] Working principle: The electromagnet 7 is energized to drive the two second screw rods 9 to move relative to each other. Since the second screw rod 9 is fixed by the fixing nut 10 and the fixing block 82, and is hingedly connected to the caliper 4 through the connecting block 5, the friction plate 44 in the caliper 4 is separated from the brake disc 3, ensuring that the brake disc 3 can rotate normally. When braking, the electromagnet 7 is powered off, and the spring 83 itself stretches and elastically pushes the fixing block 82 to reset, so that the fixing block 82 drives the caliper 4 to reset, and the stability of the fixing block 82 during movement can be ensured by the first screw rod 81. By turning the adjusting nut 85, the brake disc 3 can be adjusted. The position of the limit ring 84 can be adjusted, and then the tension of the spring 83 can be adjusted, so as to facilitate the adjustment of the brake. When the friction plate 44 and the brake disc 3 are in instantaneous contact, the brake disc 3 will drive the friction plate 44 to move in the mounting groove 41. At this time, the friction plate 44 will press the rubber block 46, and the rubber block 46 will deform to play a certain buffering role, thereby reducing the pressure of the elevator on the brake. The slider 42 provided on the fixing plate 43 can ensure the normal movement of the friction plate 44. The fixing screws 45 on the friction plate 44 can be unscrewed to disassemble the friction plate 44.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An elevator brake with an adjustment structure, comprising a mounting frame (1), characterized in that: A drive motor (2) is fixed to the side wall of the mounting frame (1) by bolts, a power output shaft of the drive motor (2) passes through the mounting frame (1) and is fixed with a brake disc (3), and the outer wall of the brake disc (3) is provided with two brake mechanisms for braking the elevator; The brake mechanism comprises a caliper (4), wherein two calipers (4) are provided, and the two calipers (4) are respectively arranged on both sides of the brake disc (3), and the inside of the two calipers (4) is provided with a mounting groove (41), and the inside of the mounting groove (41) is slidably connected with a slider (42), and a fixing plate (43) is fixed on one side of the slider (42), and a friction plate (44) is installed on the side wall of the fixing plate (43), and the inside of the friction plate (44) is provided with two fixing screws (45) threadedly connected with the fixing plate (43), and rubber blocks (46) tightly fitting with the inner wall of the mounting groove (41) are fixed at both ends of the friction plate (44).

2. An elevator brake with an adjustment structure according to claim 1, characterized in that: The lower ends of the two calipers (4) are hinged with a connecting block (5), and the lower end of the mounting frame (1) is installed with two groups of fixing bolts (6).

3. The elevator brake with an adjustment structure according to claim 1, characterized in that: An electromagnet (7) is fixed to the side wall of the upper end of the mounting frame (1) by means of bolts, and an adjustment mechanism for adjusting the brake is fixed to the outer wall of the electromagnet (7).

4. An elevator brake with an adjustment structure according to claim 3, characterized in that: The adjustment mechanism comprises a connecting plate (8), two connecting plates (8) are provided, the two connecting plates (8) are both fixed to the outer wall of the electromagnet (7), and the side walls of the two connecting plates (8) are both fixed with a first screw (81).

5. An elevator brake with an adjustment structure according to claim 4, characterized in that: A fixing block (82) fixedly connected to the caliper (4) passes through the outer surface of the first screw rod (81), and a spring (83) abutting against the fixing block (82) is sleeved on the outer surface of the first screw rod (81).

6. An elevator brake with an adjustment structure according to claim 5, characterized in that: The end of the spring (83) is butt-connected with a limiting ring (84) sleeved on the first screw rod (81), and one side of the limiting ring (84) is provided with two adjusting nuts (85) threadedly connected to the first screw rod (81).

7. The elevator brake with an adjustment structure according to claim 3, characterized in that: A second screw rod (9) is fixed to the telescopic end of the electromagnet (7), and the second screw rod (9) passes through the internal thread of the fixing block (82) and is connected to a fixing nut (10).

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