Elevator brake and braking force processing system

Abstract

The utility model discloses an elevator brake and a braking force processing system, and relates to the technical field of elevator brake action state and braking force monitoring, the elevator brake is installed on a machine base of an elevator traction machine and makes contact with a brake wheel, the elevator brake comprises a static iron core, a movable iron core, a brake shoe and a pressure sensor, the static iron core is connected with the machine base, the movable iron core is installed on the static iron core, the brake shoe is arranged on the movable iron core and is close to the brake wheel, and a friction plate is installed between the brake shoe and the brake wheel. The pressure sensor is installed between the movable iron core and the brake shoe, the pressure sensor is used for detecting the pressure value between the brake shoe and the movable iron core, when the state of the brake shoe is changed, the pressure sensor can detect the pressure value in time, the situation that a detection blind area exists when a microswitch is adopted is avoided, and the using safety of an elevator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator brake action state and braking force monitoring, in particular to an elevator brake and a braking force processing system. Background Art

[0002] As a mature vertical transportation tool, elevators have been widely used in high-rise buildings in modern society. And because the emergency braking and keeping the elevator stationary are directly dependent on the brake, the brake has become one of the most important components in the elevator device.

[0003] Most elevator brakes use direct pressure drum brakes, and existing elevator brakes are equipped with micro switch devices to detect a certain distance in the movement trajectory of the brake shoe. Specifically, the operating state of the existing elevator brake is achieved by detecting the position change of the moving iron core through a micro switch. This detection method has a large detection blind area, and sometimes the detection result does not match the actual working state of the brake shoe, resulting in safety hazards or false alarms of elevator failures. Utility Model Content

[0004] The main purpose of the utility model is to provide an elevator brake and a braking force processing system, aiming to solve the problem that the micro switch on the existing elevator brake is installed on the side of the static iron core, the detection blind area is large, and the safety of elevator use is reduced.

[0005] In order to achieve the above-mentioned object, the utility model provides an elevator brake, which is installed on the base of the elevator traction machine and contacts with the brake wheel, and the elevator brake comprises:

[0006] A static iron core connected to the base;

[0007] A moving iron core, the moving iron core being mounted on the static iron core;

[0008] A brake shoe, wherein the brake shoe is arranged on the moving iron core and is arranged close to the brake wheel, and a friction plate is installed between the brake shoe and the brake wheel; and

[0009] A pressure sensor is provided between the moving iron core and the brake shoe, and is used to detect the pressure value between the brake shoe and the moving iron core.

[0010] In one embodiment, the moving iron core is provided with a first mounting hole, the pressure sensor is provided with a second mounting hole, the brake shoe is provided with a third mounting hole, and the elevator brake also includes a locking piece, which passes through the first mounting hole, the second mounting hole and the third mounting hole in sequence to connect the pressure sensor to the moving iron core and the brake shoe.

[0011] In one embodiment, at least two adjustment components are movably installed between the static iron core and the base, the at least two adjustment components are arranged at the edge of the moving iron core, the pressure sensor is located at the center of the moving iron core, and the at least two adjustment components are arranged away from the pressure sensor.

[0012] In one embodiment, the adjustment assembly includes a limit member and an adjustment screw sleeve, one end of the limit member is installed on the static iron core, and the other end passes through the moving iron core and is connected to the machine base, the adjustment screw sleeve is sleeved on the limit member, and can be screwed out relative to the static iron core to drive the moving iron core and the static iron core to move away from the brake wheel.

[0013] In one embodiment, the adjusting screw sleeve includes a threaded section and a cylindrical section, the threaded section is threadedly connected to the static iron core, the cylindrical section is movably connected to the moving iron core and can be screwed out relative to the static iron core to drive the static iron core to move, thereby adjusting the gap between the friction plate and the brake wheel.

[0014] In one embodiment, the elevator brake further includes a compression spring and a coil, wherein the compression spring is disposed between the moving iron core and the stationary iron core, and the coil is buried in the stationary iron core and is disposed away from the compression spring.

[0015] In one embodiment, the static iron core is provided with a receiving cavity and a fixing groove, the coil is accommodated in the receiving cavity, the compression spring is installed in the fixing groove and contacts the moving iron core.

[0016] In one embodiment, the elevator brake further comprises a brake release bolt, which is installed on a side of the moving iron core away from the pressure sensor and is movably connected to the static iron core.

[0017] The utility model also proposes a braking force processing system, including a brake wheel and at least two elevator brakes, the two elevator brakes include a first brake and a second brake, the first brake and the second brake are symmetrically arranged relative to the brake wheel, and each of the elevator brakes is provided with a pressure sensor.

[0018] In one embodiment, the braking force processing system also includes a controller, which includes a first pressure processing module and a second pressure processing module, the pressure sensor of the first brake is electrically connected to the first pressure processing module, and the pressure sensor of the second brake is electrically connected to the second pressure processing module.

[0019] The technical solution of the utility model installs the elevator brake on the base of the elevator traction machine, and the elevator brake is in contact with the brake wheel. The elevator brake includes a static iron core, a moving iron core brake shoe and a pressure sensor. The static iron core is connected to the base, the moving iron core is installed on the static iron core, the brake shoe is arranged on the moving iron core and close to the brake wheel, and a friction plate is installed between the brake shoe and the brake wheel; the pressure sensor is installed between the moving iron core and the brake shoe, and the pressure sensor is used to detect the pressure value between the brake shoe and the moving iron core, so that when the state of the brake shoe changes, the pressure sensor can detect it in time, avoiding the situation of detection blind spots caused by the use of micro switches, and improving the safety of elevator use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A cross-sectional view of an embodiment of an elevator brake provided by the utility model.

[0022] Description of Figure Numbers:

[0023] 100, elevator brake; 10, static iron core; 11, accommodating cavity; 12, fixing groove; 13, compression spring; 14, coil; 20, moving iron core; 30, brake shoe; 40, friction plate;

[0024] 50. Pressure sensor; 51. Locking piece;

[0025] 60. adjustment assembly; 61. stopper; 62. adjustment screw sleeve; 620. threaded section; 621. cylindrical section;

[0026] 70. Loosen bolt; 101. Machine base; 102. Brake wheel.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] The micro switch on the existing elevator brake 100 is installed on the side of the static iron core 10, and detects the working state of the brake shoe 30 by detecting the position change of the moving iron core 20. However, because the micro switch is installed on the side of the static iron core 10, the detection blind area is large and the change of the state of the brake shoe 30 cannot be detected, which reduces the safety of elevator use.

[0032] The utility model provides an elevator brake 100. Please refer to Figure 1 In one embodiment of the present utility model, the elevator brake 100 is installed on the base 101 of the elevator traction machine and contacts the brake wheel 102. The elevator brake 100 includes:

[0033] The static iron core 10 is connected to the base 101;

[0034] The moving iron core 20 is mounted on the stationary iron core 10;

[0035] A brake shoe 30 , which is disposed on the moving iron core 20 and close to the brake wheel 102 , and a friction plate 40 is installed between the brake shoe 30 and the brake wheel 102 ; and

[0036] The pressure sensor 50 is disposed between the moving iron core 20 and the brake shoe 30 . The pressure sensor 50 is used to detect the pressure value between the brake shoe 30 and the moving iron core 20 .

[0037] In the embodiment of the present utility model, the elevator traction machine comprises a machine base 101, a brake wheel 102 and an elevator brake 100. The brake object of the elevator brake 100 is the brake wheel 102.

[0038] The technical solution of the utility model installs an elevator brake 100 on a machine base 101 of an elevator traction machine, and the elevator brake 100 contacts a brake wheel 102. The elevator brake 100 comprises a static iron core 10, a moving iron core 20, a brake shoe 30 and a pressure sensor 50. The static iron core 10 is connected to the machine base 101, the moving iron core 20 is installed on the static iron core 10, the brake shoe 30 is arranged on the moving iron core 20, and is arranged close to the brake wheel 102, and a friction plate 40 is installed between the brake shoe 30 and the brake wheel 102; the pressure sensor 50 is installed between the moving iron core 20 and the brake shoe 30, and the pressure sensor 50 is used to detect the pressure value between the brake shoe 30 and the moving iron core 20, so that when the brake shoe 30 changes its state, the pressure sensor 50 can detect it in time, thereby avoiding the situation of detection blind spots caused by the use of micro switches, and improving the safety of elevator use.

[0039] The pressure sensor 50 may be of model HZC-H1. The shape of the pressure sensor 50 may be circular or square.

[0040] When the elevator brake 100 and the brake wheel 102 are in a released state, the brake shoe 30 and the friction plate 40 move away from the brake wheel 102, and the friction plate 40 separates from the brake wheel 102; at this time, the pressure between the brake shoe 30 and the moving iron core 20 decreases, and the pressure value detected by the pressure sensor 50 decreases.

[0041] When the elevator brake 100 and the brake wheel 102 are in a closed state, the brake shoe 30 and the friction plate 40 move toward the brake wheel 102, and the friction plate 40 presses against the brake wheel 102; at this time, the pressure between the brake shoe 30 and the moving iron core 20 increases, and the pressure value detected by the pressure sensor 50 increases.

[0042] It should be noted that the elevator brake 100 is a direct pressure drum brake, and the working principle of closing and releasing the elevator brake 100 is the existing technology and will not be described in detail here.

[0043] To install the pressure sensor 50 between the brake shoe 30 and the moving iron core 20, refer to Figure 1 The moving iron core 20 is provided with a first mounting hole, the pressure sensor 50 is provided with a second mounting hole, the brake shoe 30 is provided with a third mounting hole, and the elevator brake 100 also includes a locking member 51, which passes through the first mounting hole, the second mounting hole and the third mounting hole in sequence to connect the pressure sensor 50 with the moving iron core 20 and the brake shoe 30.

[0044] In the embodiment of the present invention, the pressure sensor 50 is installed between the moving iron core 20 and the brake shoe 30 through the locking member 51 , so that the pressure sensor 50 can be used to detect the pressure value between the moving iron core 20 and the brake shoe 30 .

[0045] like Figure 1 As shown, in an embodiment of the utility model, at least two adjustment assemblies 60 are movably installed between the static iron core 10 and the base 101, at least two adjustment assemblies 60 are arranged on the edge of the moving iron core 20, the pressure sensor 50 is located at the center of the moving iron core 20, and at least two adjustment assemblies 60 are arranged away from the pressure sensor 50.

[0046] The elevator brake 100 is installed on the base 101 of the elevator traction machine through two adjustment components 60. In order to avoid the adjustment components 60 from obstructing the pressure sensor 50, the adjustment components 60 are arranged away from the pressure sensor 50. Specifically, at least two adjustment components 60 are arranged at the edge of the moving iron core 20 and connected to the base. The pressure sensor 50 is arranged at the center of the moving iron core 20, and there is a gap between the pressure sensor 50 and the adjustment components 60.

[0047] In order to install the static iron core 10 and the moving iron core 20 on the machine base 101, the adjustment assembly 60 includes a limit member 61 and an adjusting screw sleeve 62. One end of the limit member 61 is installed on the static iron core 10, and the other end passes through the moving iron core 20 and is connected to the machine base 101. The adjusting screw sleeve 62 is sleeved on the limit member 61 and can be rotated in or out relative to the static iron core 10 to drive the static iron core 10 to move toward the brake wheel 102 or away from the brake wheel 102.

[0048] In the embodiment of the present utility model, one end of the limiting member 61 is connected to the base 101 , and the other end is connected to the static iron core 10 , so as to install the brake 100 on the base 101 .

[0049] In order to enable the adjusting screw sleeve 62 to be screwed in or out relative to the static iron core 10, the adjusting screw sleeve 62 includes a threaded section 620 and a cylindrical section 621. The threaded section 620 is threadedly connected to the static iron core 10, and the cylindrical section 621 is movably connected to the moving iron core 20. The adjusting screw sleeve 62 can be screwed in or out relative to the static iron core 10 to adjust the distance between the static iron core 10 and the machine base 101, thereby adjusting the release clearance between the friction plate 40 and the brake wheel 102.

[0050] When the elevator stops and the brake is closed, the release clearance of the elevator brake 100 can be adjusted. When adjusting the release clearance of the elevator brake 100, the friction plate 40 is close to the brake wheel 102, the limiter 61 is loosened, and the adjustment screw sleeve 62 is rotated to make the static iron core 10 close to or away from the brake wheel 102, thereby adjusting the pull-in clearance between the static iron core 10 and the moving iron core 20, and the static iron core 10 is locked with the limiter 61 after the adjustment is completed.

[0051] In an embodiment of the present invention, the threaded section 620 can be screwed in or out relative to the static iron core 10 to move the static iron core 10 closer to or farther away from the brake wheel 102, thereby causing the gap between the friction plate 40 and the brake wheel 102 to become smaller or larger when the elevator brake 100 is engaged.

[0052] An adjusting screw sleeve 62 is movably installed on the moving iron core 20 to adjust the gap between the friction plate 40 and the brake wheel 102 when the elevator brake 100 is in the open state, thereby avoiding the situation where the friction plate 40 still contacts the brake wheel 102 when the elevator brake 100 is in the open state.

[0053] The elevator brake 100 further includes a compression spring 13 and a coil 14 . The compression spring 13 is arranged between the moving iron core 20 and the stationary iron core 10 . The coil 14 is buried in the stationary iron core 10 and is arranged to avoid the compression spring 13 .

[0054] In the embodiment of the utility model, the compression spring 13 is arranged between the moving iron core 20 and the static iron core 10, and is used to provide the required braking force for the elevator brake 100. The coil 14 is buried in the accommodating cavity 11 of the static iron core 10, and is used to provide the brake with the opening force. The elevator brake 100 is a direct pressure drum brake, and the working principle of the compression spring 13 of the elevator brake 100 providing the required braking force for the elevator brake 100 is the prior art, and the working principle of the coil 14 providing the brake with the opening force is also the prior art. For details, please refer to the elevator brake 100 with application number CN201420061949.8, which will not be described in detail here.

[0055] In the embodiment of the present invention, the stationary iron core 10 is provided with a receiving cavity 11 and a fixing groove 12 . The coil 14 is received in the receiving cavity 11 . The compression spring 13 is installed in the fixing groove 12 and contacts the moving iron core 20 .

[0056] In the embodiment of the present utility model, the elevator brake 100 further includes a brake release bolt 70 , which is installed on a side of the moving iron core 20 away from the pressure sensor 50 and is movably connected to the stationary iron core 10 .

[0057] The brake release bolt 70 passes through the static iron core 10 and is connected to the moving iron core 20 to limit the moving iron core 20 on the static iron core 10. A nut is installed on the side of the brake release bolt 70 away from the pressure sensor 50 to limit the static iron core 10 and prevent the static iron core 10 from escaping from the brake release bolt 70.

[0058] The utility model also proposes a braking force processing system, which includes a brake wheel 102 and at least two elevator brakes 100. The specific structure of the elevator brake 100 refers to the above embodiment. Since the braking force processing system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the two elevator brakes 100 include a first brake and a second brake, the first brake and the second brake are symmetrically arranged relative to the brake wheel 102, and each elevator brake is provided with a pressure sensor 50.

[0059] In an embodiment of the present utility model, the braking force processing system also includes a controller, which includes a first pressure processing module and a second pressure processing module. The pressure sensor 50 of the first brake is electrically connected to the first pressure processing module, and the pressure sensor 50 of the second brake is electrically connected to the second pressure processing module.

[0060] When the elevator brake 100 is opened, the brake shoes 30 on the first brake and the second brake both move away from the brake wheel 102, and the pressure values ​​detected by the first pressure sensor 50 and the second pressure sensor 50 both decrease. The first pressure processing module and the second pressure processing module are used to receive the corresponding pressure values ​​of the first pressure sensor 50 and the second pressure sensor 50, respectively.

[0061] When the elevator brake 100 is in the closed state, the brake shoes 30 on the first brake and the second brake both move toward the brake wheel 102, and the pressure values ​​detected by the first pressure sensor 50 and the second pressure sensor 50 both increase. The first pressure processing module and the second pressure processing module can receive the corresponding pressure values ​​of the first pressure sensor 50 and the second pressure sensor 50, respectively.

[0062] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An elevator brake, characterized in that: The elevator brake is mounted on the base of the elevator traction machine and contacts the brake wheel. The elevator brake comprises: A static iron core connected to the base; A moving iron core, the moving iron core being mounted on the static iron core; A brake shoe, wherein the brake shoe is arranged on the moving iron core and is arranged close to the brake wheel, and a friction plate is installed between the brake shoe and the brake wheel; and A pressure sensor is provided between the moving iron core and the brake shoe, and is used to detect the pressure value between the brake shoe and the moving iron core.

2. The elevator brake according to claim 1, characterized in that The moving iron core is provided with a first mounting hole, the pressure sensor is provided with a second mounting hole, and the brake shoe is provided with a third mounting hole. The elevator brake also includes a locking piece, which passes through the first mounting hole, the second mounting hole and the third mounting hole in sequence to connect the pressure sensor to the moving iron core and the brake shoe.

3. The elevator brake according to claim 2, characterized in that At least two adjustment components are movably installed between the static iron core and the base. The at least two adjustment components are arranged at the edge of the moving iron core. The pressure sensor is located at the center of the moving iron core. The at least two adjustment components are arranged away from the pressure sensor.

4. The elevator brake according to claim 3, characterized in that: The adjustment assembly includes a limit piece and an adjusting screw sleeve. One end of the limit piece is installed on the static iron core, and the other end passes through the moving iron core and is connected to the machine base. The adjusting screw sleeve is sleeved on the limit piece and can be screwed in or out relative to the static iron core to drive the static iron core to move toward or away from the brake wheel.

5. The elevator brake according to claim 4, characterized in that The adjusting screw sleeve includes a threaded section and a cylindrical section. The threaded section is threadedly connected to the static iron core, and the cylindrical section is movably connected to the moving iron core and can be screwed in or out relative to the static iron core to drive the static iron core to move, thereby adjusting the gap between the friction plate and the brake wheel.

6. The elevator brake according to any one of claims 1 to 5, characterized in that: The elevator brake further comprises a compression spring and a coil, wherein the compression spring is arranged between the moving iron core and the stationary iron core, and the coil is buried in the stationary iron core and arranged to avoid the compression spring.

7. The elevator brake according to claim 6, characterized in that The static iron core is provided with a receiving cavity and a fixing groove, the coil is received in the receiving cavity, the compression spring is installed in the fixing groove and contacts with the moving iron core.

8. The elevator brake according to any one of claims 1 to 5, characterized in that: The elevator brake also includes a brake release bolt, which is installed on a side of the moving iron core away from the pressure sensor and is movably connected to the static iron core.

9. A braking force processing system, characterized in that: It comprises a brake wheel and at least two elevator brakes according to any one of claims 1 to 8, wherein the two elevator brakes comprise a first brake and a second brake, wherein the first brake and the second brake are symmetrically arranged relative to the brake wheel, and each of the elevator brakes is provided with a pressure sensor.

10. The braking force management system according to claim 9, wherein: It also includes a controller, which includes a first pressure processing module and a second pressure processing module. The pressure sensor of the first brake is electrically connected to the first pressure processing module, and the pressure sensor of the second brake is electrically connected to the second pressure processing module.

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