CN219807715U - Brake shoe abrasion detection alarm device - Google Patents
Brake shoe abrasion detection alarm device Download PDFInfo
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- CN219807715U CN219807715U CN202320712264.4U CN202320712264U CN219807715U CN 219807715 U CN219807715 U CN 219807715U CN 202320712264 U CN202320712264 U CN 202320712264U CN 219807715 U CN219807715 U CN 219807715U
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000005299 abrasion Methods 0.000 title abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 1
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Abstract
The utility model relates to the technical field of elevator safety detection equipment, and particularly discloses a brake shoe abrasion detection alarm device of a brake, and a laser range finder: a brake shoe thickness detector for detecting the distance between the brake arms when polymerized: for detecting the wear value of the unilateral brake shoe, alarm unit: for issuing an alarm, a data transmission unit: receiving the distance value, receiving the wear value, transmitting the distance value and the wear value at a predetermined frequency, and a data processing unit: the distance value and the wear value transmitted by the data transmission unit at a preset frequency are received, a preset minimum distance threshold value and a preset maximum wear threshold value are stored in the data processing unit, and if the distance value is smaller than the preset minimum distance threshold value or the wear value is larger than the preset maximum wear value threshold value, an alarm is sent out through the alarm unit, so that the problem that the wear of the brake shoe of the traditional brake for the elevator can occur along with use, and the wear degree of the brake shoe is difficult to detect in the process of maintaining the elevator is solved.
Description
Technical Field
The utility model relates to the technical field of elevator safety detection equipment, and particularly discloses a brake shoe abrasion detection alarm device of a brake.
Background
The elevator is a vertical elevator powered by an electric motor and is provided with a box-shaped nacelle for use in multi-story buildings for taking persons or carrying goods. There are also steps, where the tread is mounted on a track for continuous running, commonly known as an escalator or a travelator. A stationary lifting device serving a prescribed floor. The vertical lift elevator has a car that travels between at least two vertical rows of rigid guide rails. The size and the structural form of the lift car are convenient for passengers to get in and out or load and unload cargoes.
The elevator in modern society is used more and more widely, and relates to schools, residential areas, commercial buildings, shopping malls and public transportation centers, the service life of the elevator in departments is longer than 15 years, and the elevator is used as a high-rise transportation device and is naturally provided with a safety braking device to protect safe travelling. Currently, a brake is commonly used for braking an elevator, the brake being braked by the tightening of brake shoes. With continued use of the elevator, the shoes of the "brake of the elevator wear out a lot.
The utility model provides a chinese patent of application number 201620805729.0 discloses a hoist stopper, including the base, install the brake arm in the base both sides, install the hydraulic pressure electro-magnet on brake arm right side, the upper portion of hydraulic pressure electro-magnet is connected with the lever, the left end of lever is connected with the screw rod, the below of screw rod is provided with the spring bracket that one end is connected with the brake arm, the pull rod has been cup jointed to the left end of spring bracket, the tile is installed to the inboard intermediate position of brake arm, the front of tile evenly sets up and the through-hole, the outside of tile is connected with the brake block, the back evenly sets up and the dead lever of brake block, the end-to-end connection of dead lever has the lug.
The above-disclosed patent does not have a structure for detecting the degree of wear of the brake shoe, and does not have a function for detecting the degree of wear of the brake shoe. In the timing maintenance of the elevator, it is difficult to directly detect the wear degree of the brake shoe.
Accordingly, the inventors have found that a brake shoe wear detection alarm device is provided to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the problems that the brake shoe of the traditional brake for the elevator is worn along with use, and the abrasion degree of the brake shoe is difficult to detect in the process of maintaining the elevator.
In order to achieve the above object, the basic scheme of the present utility model provides a brake shoe wear detection alarm device, comprising:
laser range finder: for detecting the distance between the polymerization of the brake arms of the mounting shoe;
brake shoe thickness detector: for detecting the wear value of a single-sided brake shoe;
an alarm unit: for issuing an alarm;
a data transmission unit: receiving a distance value between brake arms from a laser range finder, receiving a wear value of a brake shoe from a brake shoe thickness detector, and transmitting the distance value and the wear value at a predetermined frequency;
a data processing unit: the distance value and the wear value transmitted by the data transmission unit at a predetermined frequency are received, the data processing unit stores a predetermined minimum distance threshold and a predetermined maximum wear threshold, and if the distance value is smaller than the predetermined minimum distance threshold or the wear value is larger than the predetermined maximum wear value threshold, an alarm is issued by the alarm unit.
Further, the data processing unit acquires the wear value of the one-sided shoe detected by the shoe thickness detector for a predetermined period of time, and takes the maximum value of the wear value of the one-sided shoe for the predetermined period of time.
Further, the data processing unit collects the distance between the brake arms detected by the laser range finder in a certain predetermined period, and finds a distance difference between the distance between the brake arms and the initially detected distance in the predetermined period.
Further, the data processing unit is also internally stored with a wear value of the thickness of the brake shoe with the preset highest thickness, and when any difference value among the maximum value or the distance difference value of the wear value is larger than the wear value, an alarm is sent out through the alarm unit.
Further, the alarm unit comprises a display, a buzzer and a fixture for mounting the display and the buzzer into the elevator car.
Further, brake shoe thickness detectors are arranged in the middle and at the two ends of the unilateral brake shoe, the data processing unit receives the abrasion values transmitted by all brake shoe thickness detectors, and an alarm is sent out through the alarm unit as long as any abrasion value is larger than a preset abrasion threshold value.
Further, the brake shoe thickness detector comprises a fixed shell arranged on one side of the brake shoe, a baffle fixedly connected to one end, far away from the end face of the brake shoe, of the fixed shell, a measuring tape in sliding connection with the fixed shell, and a distance sensor fixedly connected to one end, close to the baffle, of the measuring tape, wherein the end face, in the outer side of the measuring tape, is leveled with the initial end face of the brake shoe in a static state, and a reset spring is further arranged between the measuring tape and the baffle.
Further, the fixed shell is clamped with the side wall of the brake shoe.
Further, the laser range finder comprises a laser transmitter detachably connected to one side of the brake arm and a laser receiver detachably connected to the other side of the brake arm.
Further, the laser transmitter and the laser receiver are both connected with the brake arm through bolts.
The principle and effect of this scheme lie in:
1. according to the utility model, the distance between the brake arms during polymerization is measured through the laser range finder, the distance value is obtained, the measured distance value is compared with the lowest distance threshold value in the data processing unit, and when the distance value is smaller than the lowest distance threshold value, an alarm is sent out through the alarm unit.
2. According to the utility model, the wear value of the single-side brake shoe is measured through the brake shoe thickness detector, the measured wear value is compared with the highest wear threshold value in the data processing unit, and when the wear value is larger than the highest wear threshold value, an alarm is sent out through the alarm unit.
3. Compared with the prior art, the utility model detects the distance between the brake arms and the abrasion thickness of the brake shoe respectively by arranging the laser range finder and the brake shoe thickness detector, judges whether transitional abrasion occurs or not by comparing the distance with the threshold value in the data output unit, and further automatically completes detection alarm, thereby solving the problem that the abrasion degree of the brake shoe is difficult to detect in the process of maintaining the elevator because the brake shoe of the traditional brake for the elevator is abraded along with use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of a brake shoe wear detection alarm device according to an embodiment of the present utility model;
fig. 2 shows a schematic diagram of a brake shoe wear detection alarm device according to an embodiment of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
Reference numerals in the drawings of the specification include: base 1, shoe 2, driving motor 3, director 4, bull stick 5, tile 6, measuring tape 7, fixed casing 8, laser receiver 9, laser emitter 10.
A brake shoe wear detection alarm device is shown in figure 1:
the device comprises a brake, a laser range finder arranged on the brake, a brake shoe 2 thickness detector arranged on brake shoes 2 at two sides of the brake, an alarm unit arranged in an elevator car, a data transmission unit for transmitting data and a data processing unit for processing the data.
Among them, the brake is the same type as most of the prior art. The brake device comprises a base 1, wherein two sides of the base 1 are respectively provided with a rotatable brake arm, and a spring frame is also arranged between the brake arms on the two sides of the base 1. A brake shoe 2 is also arranged at the middle position of the inner sides of the brake arms at the two sides, and the inner sides of the brake shoe 2 are the tiles 6 for braking. Between the brake arm tips on both sides, a drive structure for controlling the clamping of the brake arm and the clamping of the brake shoe 2 is installed. The driving structure comprises a driving motor 3, a guider 4 and a rotating rod 5, and the rotating rod 5 is rotated by the driving motor 3 to be screwed with a nut fixed on a brake arm at the other side. Of course, the rotating rod 5 is provided with external threads engaged with the internal threads of the nut.
As shown in fig. 1, the laser rangefinder includes a backing plate mounted on a left brake arm by a bolt, a laser transmitter 10 mounted on the backing plate by a bolt, a backing plate mounted on a right brake arm by a bolt, and a laser receiver 9 mounted on the backing plate by a bolt. The pad provides a stable transmitting and receiving platform for the laser transmitter 10 and the laser receiver 9. The laser transmitter 10 emits laser light to the laser receiver 9, and the laser light distance is measured by the laser receiver 9 to obtain a distance value between the brake arms on both sides, which value is, of course, measured when the shoe 2 is clamped.
The thickness detector of the brake shoe 2 is arranged at the two ends and the middle of the brake shoe 2 at the two sides and is parallel to the brake shoe 2. The thickness detector of the brake shoe 2 comprises a fixed shell 8, a sliding groove formed in the surface of the fixed shell 8, and a baffle integrally formed on the end face of one end of the fixed shell 8 far away from the brake shoe 2, wherein a measuring tape 7 is installed on the fixed shell 8, a sliding table capable of sliding in the sliding groove is integrally formed on the inner side of the measuring tape 7, a distance sensor is installed at the end part of the measuring tape 7, facing one end of the baffle, and a reset spring is installed between the measuring tape 7 and the baffle. The distance sensor measures the distance, i.e. depth, between the end of the measuring tape 7 and the stop. The initial position of the measuring tape 7 is leveled with the end face of the unworn brake shoe 2. After the brake shoe 2 is tightly held and worn, the inward moving distance of the measuring tape 7 can be measured by a distance sensor, and the distance is the wear value of the brake shoe 2.
The alarm unit is installed in the car of elevator, including display, buzzer and mounting. The display and the buzzer are both arranged in the fixing piece. The display may show a specific wear value and whether the wear threshold is exceeded.
The data transmission unit may then receive the distance value between the brake arms from the laser rangefinder, the wear value of the brake shoe 2 from the brake shoe 2 thickness detector, and transmit the distance value and the wear value to the data processing unit at a predetermined frequency. The transmission may be specifically wired or wireless (e.g. radio frequency, bluetooth, zigbee), and of course, the received data may also be received by this means. And the data processing unit adopts a singlechip.
The data processing unit compares the distance threshold value and the wear threshold value with the distance value and the wear value respectively by storing a preset minimum distance threshold value and a preset maximum wear threshold value in advance, and if the distance value is smaller than the preset minimum distance threshold value or the wear value is larger than the preset maximum wear value threshold value, an alarm is sent out by the alarm unit.
Of course, the data processing unit may also acquire the wear value of the one-sided shoe 2 detected by the shoe 2 thickness detector for a predetermined period of time and acquire the maximum value of the wear value of the one-sided shoe 2 for the predetermined period of time; the distance between the braking arms detected by the laser range finder in a certain preset period is collected, the distance difference between the distance between the braking arms in the preset period and the originally detected distance is obtained, a preset wear value of the thickness of the highest brake shoe 2 is stored in the data processing unit in advance, and when any difference between the maximum value of the wear value and the distance difference is larger than the wear value, an alarm is sent out through the alarm unit.
Through setting up laser range finder and brake shoe 2 thickness detector, detect the wearing and tearing thickness of brake shoe 2 and distance between when the brake arm polymerization respectively to judge whether excessive wear appears through comparing with the threshold value in the unit that comes out of data, and then accomplish the detection warning voluntarily, solved brake shoe 2 of traditional stopper for the elevator can take place wearing and tearing along with the use, in the maintenance process to the elevator, be difficult to the problem that detects the wearing and tearing degree of brake shoe 2.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (10)
1. A brake shoe wear detection alarm device is characterized in that: comprising the following steps:
laser range finder: for detecting the distance between the polymerization of the brake arms of the mounting shoe;
brake shoe thickness detector: for detecting the wear value of a single-sided brake shoe;
an alarm unit: for issuing an alarm;
a data transmission unit: receiving a distance value between brake arms from a laser range finder, receiving a wear value of a brake shoe from a brake shoe thickness detector, and transmitting the distance value and the wear value at a predetermined frequency;
a data processing unit: the distance value and the wear value transmitted by the data transmission unit at a predetermined frequency are received, the data processing unit stores a predetermined minimum distance threshold and a predetermined maximum wear threshold, and if the distance value is smaller than the predetermined minimum distance threshold or the wear value is larger than the predetermined maximum wear value threshold, an alarm is issued by the alarm unit.
2. A brake shoe wear detection alarm device in accordance with claim 1, wherein said data processing unit acquires the wear value of the single-sided shoe detected by the shoe thickness detector for a predetermined period of time and takes the maximum value of the wear value of the single-sided shoe for the predetermined period of time.
3. A brake shoe wear detection alarm device according to claim 2, wherein the data processing unit acquires the distance between the brake arms detected by the laser rangefinder for a predetermined period of time and calculates the distance difference between the distance between the brake arms and the initially detected distance for the predetermined period of time.
4. A brake shoe wear detection alarm device according to claim 3, wherein the data processing unit further stores therein a wear value of a predetermined highest shoe thickness, and the alarm unit issues an alarm when either the maximum value of the wear value or the difference in distance is greater than the wear value.
5. A brake shoe wear detection warning device in accordance with claim 1 wherein the warning unit includes a display, a buzzer and a fixture for mounting the display and buzzer into the elevator car.
6. The brake shoe wear detection alarm device according to claim 1, wherein the brake shoe thickness detectors are arranged at the middle part and the two ends of the single-side brake shoe, the data processing unit receives wear values transmitted by all the brake shoe thickness detectors, and an alarm is sent out through the alarm unit as long as any wear value is larger than a preset wear threshold.
7. The brake shoe wear detection alarm device according to claim 6, wherein the brake shoe thickness detector comprises a fixed shell arranged on one side of the brake shoe, a baffle fixedly connected to one end of the fixed shell far away from the end face of the brake shoe, a measuring tape slidingly connected with the fixed shell, and a distance sensor fixedly connected to one end of the measuring tape close to the baffle, wherein the end face of the outer side of the measuring tape is leveled with the initial end face of the brake shoe in a static state, and a reset spring is further arranged between the measuring tape and the baffle.
8. The brake shoe wear detection alarm device according to claim 7, wherein the fixed housing is provided with a chute, and the measuring scale is provided with a sliding table in sliding connection with the chute.
9. A brake shoe wear detection alarm device in accordance with claim 1 wherein the laser rangefinder includes a laser transmitter removably attached to one brake arm and a laser receiver removably attached to the other brake arm.
10. The brake shoe wear detection alarm device of claim 9, wherein the laser transmitter and the laser receiver are bolted to the brake arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320712264.4U CN219807715U (en) | 2023-04-03 | 2023-04-03 | Brake shoe abrasion detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320712264.4U CN219807715U (en) | 2023-04-03 | 2023-04-03 | Brake shoe abrasion detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219807715U true CN219807715U (en) | 2023-10-10 |
Family
ID=88213609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320712264.4U Active CN219807715U (en) | 2023-04-03 | 2023-04-03 | Brake shoe abrasion detection alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219807715U (en) |
-
2023
- 2023-04-03 CN CN202320712264.4U patent/CN219807715U/en active Active
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