CN211824850U - Device for measuring braking torque of elevator traction machine - Google Patents
Device for measuring braking torque of elevator traction machine Download PDFInfo
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- CN211824850U CN211824850U CN202020595395.5U CN202020595395U CN211824850U CN 211824850 U CN211824850 U CN 211824850U CN 202020595395 U CN202020595395 U CN 202020595395U CN 211824850 U CN211824850 U CN 211824850U
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- elevator
- buckle
- lever
- dynamometer
- traction machine
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Abstract
The utility model relates to a traction type elevator supervise inspection and periodic inspection technical field especially relate to a device for measuring elevator hauler braking moment. Comprises a lever, a dynamometer and a buckle; scales are arranged on the lever, the dynamometer and the buckle can move on the lever, and the positions of the dynamometer and the buckle on the lever are adjustable; the buckle is connected with an elevator traction machine. The utility model discloses can measure required moment size when driving sheave stopper produces relative slip, calculate elevator braking moment. Through the measurement of the device, whether the brake torque of the elevator brake can meet the 125% brake test requirement of the elevator can be calculated, so that the elevator brake test risk and the operation accidents are obviously reduced.
Description
Technical Field
The utility model relates to a traction type elevator supervise inspection and periodic inspection technical field especially relate to a device for measuring elevator hauler braking moment.
Background
According to the stipulations in the TSG7001-2009 elevator supervision and inspection and regular inspection rules-traction and forced drive elevator 8 "test" 8.11 "downlink brake test": "the car is loaded with 1.25 times rated load, goes down to the lower part of the travel at normal running speed, the power supply of the motor and the brake is cut off, the traction machine should stop running, the car should stop completely, and no obvious deformation and damage exist. "and" brake system "12.4.2.1" according to item 12.4 of GB7588-2003 "elevator manufacturing and installation safety code" when the car is loaded with 125% of rated load and is moving downwards at rated speed, the brake should be operated to stop the machine. "in the above case, the deceleration of the car should not exceed the deceleration caused by the safety gear action or the car hitting the buffer. "on an elevator, the main device that generates braking force is the elevator brake. Whether the performance of the brake is qualified or not is directly related to the operation safety of the elevator.
At present, the performance of the brake is mainly checked on the appearance and the braking performance of the brake, the braking performance is mainly verified by a load test, the method has certain risks, not only is irreversible damage easily caused to the elevator, but also serious accidents are easily caused, and in recent years, part of the elevator is seriously damaged by the load test carried out in elevator checking.
Disclosure of Invention
For overcoming the not enough of prior art, the utility model provides a device for measuring elevator hauler braking moment, enough quantitative measurement elevator stopper braking moment can calculate whether elevator stopper braking moment can satisfy the experimental requirement of elevator 125% braking to show reduction elevator braking test risk and operation accident.
In order to realize the purpose, the utility model discloses a following technical scheme realizes:
a device for measuring the braking torque of an elevator traction machine comprises a lever, a dynamometer and a fastener; scales are arranged on the lever, the dynamometer and the buckle can move on the lever, and the positions of the dynamometer and the buckle on the lever are adjustable; the buckle is connected with an elevator traction machine.
The lever comprises a buckle fixing rod and a dynamometer fixing rod, and the dynamometer fixing rod is fixedly connected to two ends of the buckle fixing rod.
The lever is telescopic structure, and the lever includes buckle dead lever and dynamometer dead lever, and the dynamometer dead lever passes through (but not limited to) threaded connection at the both ends of buckle dead lever.
The buckle is connected with a traction wheel of an elevator traction machine or a speed reducer high-speed shaft of the elevator traction machine through a jigger handwheel or a special connector.
The dynamometer is a pull-pressure sensor, and is of the type (but not limited to) DYLF-102.
Compared with the prior art, the beneficial effects of the utility model are that:
1) under the brake state, certain external force is directly or indirectly exerted to the traction sheave, the utility model discloses required moment size when can measuring the traction sheave brake and producing relative slip calculates elevator braking moment. Through the measurement of the device, whether the brake torque of the elevator brake can meet the 125% brake test requirement of the elevator can be calculated, so that the elevator brake test risk and the operation accidents are obviously reduced.
2) The utility model discloses be equipped with the scale mark on the lever, be convenient for measure moment.
3) The lever is of a telescopic structure, can be extended and shortened, the force arm is lengthened, the moment can be increased, and the use is convenient.
Drawings
FIG. 1 is a schematic side view of the structure of embodiment 1 of the present invention;
FIG. 2 is a schematic plan view of embodiment 1 of the present invention;
FIG. 3 is a schematic side view of the structure of embodiment 2 of the present invention;
FIG. 4 is a schematic plan view of embodiment 2 of the present invention;
fig. 5 is a working state diagram of the asynchronous motor tractor (the buckle is connected with the elevator tractor through the turning hand wheel);
fig. 6 is a working state diagram of the asynchronous motor traction machine (the buckle is connected with the elevator traction machine through the connector);
fig. 7 is a working state diagram of the utility model applied to a synchronous motor tractor (the buckle is connected with the elevator tractor through a jigger hand wheel);
fig. 8 is a working state diagram of the present invention applied to a synchronous motor traction machine (the buckle is connected with an elevator traction machine through a connector);
fig. 9 is a flow chart of the present invention.
In the figure: 1-lever 2-dynamometer 3-buckle 4-buckle fixed rod 5-dynamometer fixed rod 6-elevator traction machine 7-turning hand wheel 8-connector 9-graduation line
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, the device for measuring the braking torque of the elevator traction machine comprises a lever 1, a dynamometer 2 and a buckle 3. The dynamometer 2 is a pull pressure sensor of the DYLF-102 type.
Lever 1 is but extending structure, and lever 1 includes buckle dead lever 4 and dynamometer dead lever 5, and dynamometer dead lever 5 is equipped with the internal thread, and buckle dead lever 4 is equipped with the external screw thread, and dynamometer dead lever 5 passes through threaded connection at the both ends of buckle dead lever 4. Be equipped with scale mark 9 on the dynamometer dead lever 5, two dynamometer 2 symmetries are installed on two dynamometer dead levers 5, and the position of dynamometer 2 on dynamometer dead lever 5 is adjustable. Two buckles 3 are symmetrically installed at two ends of the buckle fixing rod 4, and the positions of the buckles 3 on the buckle fixing rod 4 are adjustable.
The dynamometer 2 and the buckle 3 can move on the lever, and the positions of the dynamometer 2 and the buckle 3 on the lever can be adjusted, so that the measurement is convenient; the buckle 3 is connected with an elevator traction machine 6.
The lever 1 is provided with scale marks 9 for measuring the moment. The lever 1 is of a telescopic structure, and can be extended and shortened by adjusting the depth of the buckle fixing rod 4 screwed into the dynamometer fixing rod 5, the force arm is lengthened, the moment can be increased, and the use is convenient.
Example 2:
as shown in fig. 3 and 4, embodiment 2 has the same structure as embodiment 1, except that the clip 3 of embodiment 2 is rotated by 90 ° compared with the clip 3 of embodiment 1.
An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical.
The elevator traction machine is power equipment of an elevator, and is also called an elevator main machine. The function is to transport and transmit power to run the elevator. It is composed of motor, brake, coupling, speed reducer, traction wheel, machine frame, guide wheel and auxiliary handwheel. The guide wheels are typically mounted on the frame or on a load beam below the frame. Some of the barring hand wheels are fixed on the motor shaft, and also hung on a nearby wall at ordinary times, and then sleeved on the motor shaft when in use.
The elevator brake is an important safety device of the elevator, and the safety and the reliability of the elevator brake are one of important factors for ensuring the safe operation of the elevator.
Fig. 5 is the utility model discloses be applied to asynchronous machine hauler's operating condition chart, as shown in fig. 5, buckle 3 links to each other with elevator hauler 6 through barring hand wheel 7.
Fig. 6 is a working state diagram of the asynchronous machine traction machine, as shown in fig. 6, the buckle 3 is connected with the elevator traction machine 6 through the connector 8.
Fig. 7 is the working state diagram of the utility model applied to the synchronous machine tractor, as shown in fig. 7, the buckle 3 is connected with the elevator tractor 6 through the turning hand wheel 7.
Fig. 8 is a working state diagram of the synchronous machine traction machine of the present invention, as shown in fig. 8, the buckle 3 is connected with the elevator traction machine 6 through the connector 8.
As shown in fig. 9, when the device is used, in the power-off state of the main machine, the buckle 2 of the lever 1 is firstly connected with the traction sheave or the speed reducer high-speed shaft of the elevator traction machine through (but not limited to) the turning hand wheel 7 or the special connector 8, then an external force is applied to the position of the dynamometer in the no-load/half-load/full-load state of the car, the lever 1 is rotated in the downward direction, and when the brake and the traction sheave generate relative movement, readings N1 and N2 on the dynamometer at the moment and moment arms X1 and X2 at the moment are recorded. The measured braking torque Mt in this state is calculated as N1 × X1+ N2 × 2. If necessary, the lever can be rotated in the upward direction, and the upward braking torque Mt' can be measured in the same manner. Through the established mathematical model, the actual braking torque Ma of the tractor brake can be calculated. And comparing the Ma with the braking torque Mc required by the tractor to judge whether the braking torque of the tractor can meet the requirement of an overload braking test in daily use and inspection.
The utility model discloses can measure required moment size when driving sheave stopper produces relative slip, calculate elevator braking moment. Through the measurement of the device, whether the brake torque of the elevator brake can meet the 125% brake test requirement of the elevator can be calculated, so that the elevator brake test risk and the operation accidents are obviously reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. An apparatus for measuring braking torque of an elevator traction machine, characterized in that: comprises a lever, a dynamometer and a buckle; scales are arranged on the lever, the dynamometer and the buckle can move on the lever, and the positions of the dynamometer and the buckle on the lever are adjustable; the buckle is connected with an elevator traction machine.
2. The apparatus for measuring braking torque of an elevator traction machine according to claim 1, wherein: the lever comprises a buckle fixing rod and a dynamometer fixing rod, and the dynamometer fixing rod is fixedly connected to two ends of the buckle fixing rod.
3. The apparatus for measuring braking torque of an elevator traction machine according to claim 1, wherein: the lever is extending structure, and the lever includes buckle dead lever and dynamometer dead lever, and the dynamometer dead lever passes through threaded connection at the both ends of buckle dead lever.
4. The apparatus for measuring braking torque of an elevator traction machine according to claim 1, wherein: the buckle is connected with a traction wheel of an elevator traction machine or a speed reducer high-speed shaft of the elevator traction machine through a jigger handwheel or a special connector.
5. The apparatus for measuring braking torque of an elevator traction machine according to claim 1, wherein: the dynamometer is a pull pressure sensor and adopts a DYLF-102 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020595395.5U CN211824850U (en) | 2020-04-21 | 2020-04-21 | Device for measuring braking torque of elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020595395.5U CN211824850U (en) | 2020-04-21 | 2020-04-21 | Device for measuring braking torque of elevator traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211824850U true CN211824850U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020595395.5U Expired - Fee Related CN211824850U (en) | 2020-04-21 | 2020-04-21 | Device for measuring braking torque of elevator traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211824850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479713A (en) * | 2022-08-04 | 2022-12-16 | 福建省特种设备检验研究院 | Traction type elevator braking torque measuring equipment and method |
-
2020
- 2020-04-21 CN CN202020595395.5U patent/CN211824850U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479713A (en) * | 2022-08-04 | 2022-12-16 | 福建省特种设备检验研究院 | Traction type elevator braking torque measuring equipment and method |
| CN115479713B (en) * | 2022-08-04 | 2024-09-06 | 福建省特种设备检验研究院 | Traction type elevator braking moment measuring equipment and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 |