CN113247735A - Intelligent and rapid elevator steel wire rope tension testing device - Google Patents
Intelligent and rapid elevator steel wire rope tension testing device Download PDFInfo
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- CN113247735A CN113247735A CN202110652951.7A CN202110652951A CN113247735A CN 113247735 A CN113247735 A CN 113247735A CN 202110652951 A CN202110652951 A CN 202110652951A CN 113247735 A CN113247735 A CN 113247735A
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- wire rope
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 238000009434 installation Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000009781 safety test method Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 208000035874 Excoriation Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
- B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
Abstract
The invention relates to an intelligent and quick elevator steel wire rope tension testing device, and belongs to the technical field of elevator safety testing. The problem of testing arrangement operation complicacy and the deviation appears easily, detection efficiency is low is solved. The automatic test device comprises a driving device, a self-locking device, a mounting device and a testing device, wherein the driving device comprises a driving gear, a driven gear and a rack, the driving gear and the driven gear are all connected with the mounting device, the driving gear is meshed with the driven gear, the rack is connected to the two sides of the mounting device, the upper end of the rack is connected with the testing device, the racks on the two sides are respectively meshed with the driving gear and the driven gear, the testing device comprises a sliding rail and a sensor, the sliding rail is connected with the rack, one end of the self-locking device is rotatably connected with the mounting device, the other end of the self-locking device is installed with the driving gear, and a handheld terminal is connected with the sensor. The device is portable, simple to install, simple and convenient to operate and low in operation risk.
Description
Technical Field
The invention relates to a tension testing device for a steel wire rope of an elevator, and belongs to the technical field of elevator safety testing.
Background
The elevator supervision inspection and regular inspection rules-traction and forced drive elevator TSG T7001-2009 and elevator installation and acceptance Specification GB/T10060-2011 stipulate that the difference between the tension of any one rope or chain and the average tension of all the ropes or chains is not more than 5%.
Several types of elevator steel wire rope tension testers exist in the current market, and an elevator steel wire rope tension detector with the model of DGZ300N, an elevator steel wire rope tension detector with the model of SZSH-10000 and an elevator steel wire rope tension detector with the model of SL-X all have the following defects: a. only a single steel wire rope can be detected at one time, and time is consumed when the number of the steel wire ropes is large; b. the detection personnel must enter the elevator shaft, and the measurement position is carried out on the top of the elevator car, so that certain danger exists; c. a single split detection error is large, and the detection precision is difficult to ensure; d. the steel wire rope which does not meet the requirement cannot be displayed immediately; e. the wire rope cannot be adjusted in real time; meanwhile, when the elevator steel wire rope tension detector with the model number of SZSH-10000 is operated, the continuous acting force of hands is required to be applied to the steel wire rope, and the detection precision is difficult to maintain.
The method for testing the tension of the steel wire rope of the elevator generally comprises the following steps: the elevator car stops at a proper position, a detector is located above the car roof, the tension tester is used for horizontally pulling the steel wire ropes on the counterweight side, each steel wire rope is tested for 5-6 times on average, the average value is obtained, the method is complex in operation, deviation is easy to occur, and the testing efficiency is low.
Therefore, it is needed to provide an intelligent and fast elevator rope tension testing device to solve the above technical problems.
Disclosure of Invention
The invention solves the problems that the operation of a testing device is complex, deviation is easy to occur and the detection efficiency is low. The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.
The technical scheme of the invention is as follows:
an intelligent quick elevator steel wire rope tension testing device comprises a driving device, a self-locking device, a mounting device and a testing device, wherein the driving device comprises a driving gear, a driven gear, a rack and a handheld terminal, the driving gear and the driven gear are both connected with the mounting device, the driving gear is meshed with the driven gear, the rack is connected to two sides of the mounting device, the upper end of the rack is connected with the testing device, the racks on two sides are respectively meshed with the driving gear and the driven gear, the testing device comprises a sliding rail and a sensor, the sliding rail is connected with the rack, one end of the self-locking device is rotatably connected with the mounting device, the other end of the self-locking device is installed with the driving gear, and the handheld terminal is connected with the sensor.
Preferably: the number of the racks is a multiple of 2.
Preferably: the mounting device is a box body with a symmetrical opening at the upper part, the inner side wall of the mounting device is provided with a telescopic track, a rack is connected with the telescopic track in a sliding mode and stretches out through the opening, the driving device further comprises a first driven gear and a second driven gear, the first driven gear and the second driven gear are connected with the mounting device, and the rack on the right side, the first driven gear, the driving gear, the second driven gear and the left rack are meshed in sequence.
Preferably: the both sides of installation device are provided with magnetism and inhale the mechanism, and magnetism is inhaled the mechanism and is included spiral pipeline and pass the iron set of spiral pipeline, and the both ends of spiral pipeline are passed through the wire and are connected with the battery, are provided with the switch on the wire.
Preferably: the testing device further comprises a testing mounting frame, the sliding rails are connected with the testing mounting frame, the racks are symmetrically arranged at the lower end of the testing mounting frame, and arc-shaped stop levers are arranged at two ends of the sensor.
Preferably: the handheld terminal is provided with a wireless signal receiver, a liquid crystal display screen and an integrated circuit board which is responsible for data processing, the handheld terminal is connected with a switch on a wire, and the handheld terminal is connected with a printer for data printing.
Preferably: the mounting device is mounted on a support on the car side or the counterweight side below the elevator traction machine.
Preferably: the number of the sensors is eight.
The invention has the following beneficial effects:
the device is characterized in that the mounting device is mounted below the left side or the right side of the elevator traction sheave and close to the I-shaped steel beam of the steel wire rope, the danger is reduced, the sensor and the elevator steel wire rope are correspondingly arranged, the driving device enables the sensor to press the elevator steel wire rope, and simultaneously detects the tension of a plurality of elevator steel wire ropes, so that the requirements of market supervision authorities, special equipment inspection and detection mechanisms and elevator installation and maintenance units at all levels on the equipment and technology are met, the supervision and management of the elevator safety operation by each supervision mechanism and the inspection strength of each inspection and detection mechanism are facilitated to be enhanced, and the self-inspection capability of each elevator installation and maintenance unit is improved;
the driving device of the device adopts the combination of the gear and the rack, realizes the continuous and stable lateral pressure of the elevator steel wire rope by utilizing manual rotation or driving the driving gear by the motor, ensures the continuous and stable pressure and reduces the measurement error;
the device is installed through electromagnetic adsorption, under a normal adsorption state, the device can bear 15kg of pulling force in the horizontal direction at least without obvious sliding, in a test process, due to interaction, the larger the force borne by the device is, the more stable the installation is, and the device can effectively prevent falling or sliding risks while ensuring portability, simple installation and simple and convenient operation;
this device realizes bluetooth wireless communication between detection data and the handheld terminal, instant display elevator wire rope tension data, the testing personnel is through the integrated circuit board who is responsible for data processing, judge whether wire rope tension accords with standard requirement, but the data real-time adjustment elevator wire rope tension through the handheld terminal simultaneously, improve elevator wire rope tension adjustment work efficiency, realize the automatic completion of the tensile test of elevator wire rope, and can realize online adjustment, reduce the risk of wire rope wearing and tearing or traction sheave wearing and tearing, will promote detection efficiency and reduce the risk of missed measure simultaneously by a wide margin.
Drawings
FIG. 1 is a front view of an intelligent express elevator rope tension testing apparatus;
FIG. 2 is a schematic structural diagram of an intelligent quick elevator rope tension testing device;
FIG. 3 is a schematic view of a handheld device;
fig. 4 is a schematic view of the installation position of an intelligent express elevator rope tension testing device.
In the figure, 1-a driving device, 2-a self-locking device, 3-a mounting device, 4-a testing device, 11-a driving gear, 12-a driven gear, 13-a first driven gear, 14-a second driven gear, 15-a rack, 31-a telescopic track, 32-a magnetic attraction mechanism, 41-a testing mounting frame, 42-a sliding rail, 43-a sensor and 431-an arc-shaped stop lever.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: the embodiment is described with reference to fig. 1-4, and the intelligent quick elevator steel wire rope tension testing device of the embodiment comprises a driving device 1, a self-locking device 2, a mounting device 3 and a testing device 4, wherein the driving device 1 comprises a driving gear 11, a driven gear 12 and a rack 15, the driving gear 11 and the driven gear 12 are both connected with the mounting device 3, the driving gear 11 is meshed with the driven gear 12, the rack 15 is connected with two sides of the mounting device 3, the upper end of the rack 15 is connected with the testing device 4, the racks 15 on two sides are respectively meshed with the driving gear 11 and the driven gear 12, the testing device 4 comprises a sliding rail 42 and a sensor 43, the sensor 43 is a pressure sensor, the sliding rail 42 is connected with the sensor 43 in a sliding manner, the sliding rail 42 is connected with the rack 15, one end of the self-locking device 2 is rotatably connected with the mounting device 3, the other end of the self-locking device 2 is mounted with the driving gear 11, the self-locking device 2 is a pawl, so that the unidirectional rotation of the driving gear 11 is realized, the gear and rack mechanism has a self-locking function, the sensor 43 keeps stable pressure, the sensor 43 converts the tension of the steel wire rope into a current signal, and the current signal is converted into a digital signal and transmitted to the handheld terminal; install installation device 3 in elevator driving sheave left side or right side below and be close to wire rope's I-shaped steel beam with this device through connected modes such as bolted connection, set up sensor 43 and elevator wire rope correspondence, drive arrangement 1 makes sensor 43 compress tightly elevator wire rope, this device detects several elevator wire rope tensions simultaneously, satisfy market supervision authorities at different levels, special equipment inspection detection mechanism, elevator installation maintenance unit is to the demand that this type of equipment and technique exist, help strengthening the supervision management of each supervision mechanism to elevator safe operation, and the inspection real estate of each inspection detection mechanism, also promote the self-checking ability of each elevator installation maintenance unit simultaneously, this device application prospect is extensive.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1, and the number of the racks 15 is a multiple of 2 in the intelligent express elevator rope tension testing apparatus of the present embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1-2, and the intelligent quick elevator steel wire rope tension testing device of the embodiment is a box body with a symmetrical opening at the upper part, the inner side wall of the mounting device 3 is provided with a telescopic rail 31, a rack 15 is connected with the telescopic rail 31 in a sliding manner, the rack 15 extends out through the opening, the telescopic rail 31 ensures that the rack runs along the direction of the rack, so that the extending distance of the rack is ensured, and the test result is accurate, the driving device 1 further comprises a first driven gear 13 and a second driven gear 14, the first driven gear 13 and the second driven gear 14 are both connected with the mounting device 3, and the rack 15 on the right side, the first driven gear 13, the driven gear 12, the driving gear 11, the second driven gear 14 and the rack 15 on the left side are meshed; the driving device 1 combines a gear and a rack, and the driving gear 11 is driven by manual rotation or a motor to realize continuous and stable lateral pressure on the elevator steel wire rope, so that continuous and stable pressure is ensured, and the measurement error is reduced.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 2, and an intelligent quick elevator steel wire rope tension testing device of the embodiment is provided with magnetic attraction mechanisms 32 on two sides of the mounting device 3, wherein each magnetic attraction mechanism 32 comprises a spiral pipeline and an iron rod penetrating through the spiral pipeline, two ends of the spiral pipeline are connected with a battery (storage battery) through a lead, and a switch is arranged on the lead; when the battery provides the electric current, when the electric current passes through the spiral line group, produce circular telegram magnetic field, this device adopts magnetism mode of absorption to elevator hauler below sedan-chair side or to heavy side on the support, this device can bear 15 kg's pulling force and do not take place obvious slip in the horizontal direction at least under normal adsorption state, in the test process, because interact, the power that this device received is big more, the installation is more stable, this device is guaranteeing that it is portable, the installation is simple, when easy and simple to handle, can effectually prevent to drop or slip the risk.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1-2, and the intelligent quick elevator steel wire rope tension testing device of the embodiment further includes a testing mounting frame 41, a slide rail 42 is connected with the testing mounting frame 41, racks 15 are symmetrically arranged at the lower end of the testing mounting frame 41, arc-shaped stop levers 431 are arranged at two ends of a sensor 43, and the arc-shaped stop levers 431 prevent the elevator steel wire rope from being separated from the pressure sensor, so that invalid and repeated operations in the testing process are reduced, some simple but frequent errors are avoided, and the working efficiency is improved while the testing accuracy is ensured; the sensor 43 can slide on the slide rail 42, the sensor 43 mainly comprises a pressure-sensitive element, a sensing structure, a connecting wire and the like, under the action of pressure, the pressure is transmitted to the sensing structure through the pressure-sensitive element, so that the elastic body of the sensing structure is elastically deformed, a strain bridge circuit attached to the elastic body loses balance, current is generated, the magnitude of the current is in direct proportion to the magnitude of a pressure value, and the current is amplified by a linear amplifier and then converted into a digital signal through A/D.
The sixth specific implementation mode: the embodiment is described with reference to fig. 1-3, the intelligent quick elevator steel wire rope tension testing device of the embodiment further comprises a handheld terminal, the handheld terminal is provided with a wireless signal receiver, a liquid crystal display and an integrated circuit board responsible for data processing, the integrated circuit board responsible for data processing is a PLC, the wireless signal receiver and the liquid crystal display are both connected with the PLC, the handheld terminal is connected with a switch on a wire, the handheld terminal is connected with a sensor 43, the handheld terminal is connected with a printer for data printing, the printer is provided with a receiver, the motor is connected with the mounting device 3, the output end of the motor is connected with the driving gear 11, bluetooth wireless communication between detection data and the handheld terminal is realized, elevator steel wire rope tension data is displayed immediately, a detector judges whether the steel wire rope tension meets the standard requirements through the integrated circuit board responsible for data processing, meanwhile, the tension of the elevator steel wire rope can be adjusted in real time through the data of the handheld terminal, the work efficiency of adjusting the tension of the elevator steel wire rope is improved, the automatic completion of the tension test of the elevator steel wire rope is realized, and can realize on-line adjustment, reduce the risk of abrasion of the steel wire rope or the traction sheave, greatly improve the inspection efficiency and reduce the risk of missed inspection, send the measurement data to the handheld terminal by adopting a wireless communication mode to display 8 groups of tension values and tension average values in real time, through a built-in algorithm (the difference value of the average tension values is not more than 5%), the handheld device end can display a certain steel wire rope which does not meet the requirement, an operator can adjust the steel wire rope which exceeds a specified value through the handheld terminal in real time, the adjustment of a spring at the end part of the steel wire rope is completed, the adjustment process is convenient and fast, and the device is communicated with a wireless man-machine interaction terminal within 10m under the non-blocking condition and transmits correct data; the hand-held terminal has the functions of data storage, printing and output; the hand-held terminal can realize zero point calibration through key/touch input; the hand-held terminal is powered by an internal rechargeable battery and can continuously run for more than 2 hours.
The seventh embodiment: in the intelligent and quick elevator rope tension testing device according to the present embodiment, the mounting device 3 is mounted on a bracket on the car side or the guard side below the elevator hoisting machine, that is, the mounting position of the actuator in fig. 4.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1-2, and the intelligent quick elevator steel wire rope tension testing device of the embodiment has eight sensors 43, the distance between the elevator steel wire ropes is observed, the position of the sensor 43 is adjusted according to the actual situation on site, the application range of the intelligent quick elevator steel wire rope tension testing device can basically cover all types of elevator steel wire ropes in the current market, the structure is simple and convenient, the cost is low, the operation is simple, the sensors press the elevator steel wire ropes, pressure signals are converted into digital signals and transmitted to the handheld terminal server, whether the tension of 8 elevator steel wire ropes meets the national standard and technical specification requirements can be measured by one operation, and the measurement error is within +/-5%.
It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (8)
1. The utility model provides a swift formula elevator wire rope tension testing arrangement of intelligence which characterized in that: comprises a driving device (1), a self-locking device (2), a mounting device (3), a testing device (4) and a handheld terminal, wherein the driving device (1) comprises a driving gear (11), a driven gear (12) and a rack (15), the driving gear (11) and the driven gear (12) are both connected with the mounting device (3), the driving gear (11) is meshed with the driven gear (12), the rack (15) is connected with two sides of the mounting device (3), the upper end of the rack (15) is connected with the testing device (4), the racks (15) on two sides are respectively meshed with the driving gear (11) and the driven gear (12), the testing device (4) comprises a sliding rail (42) and a sensor (43), the sliding rail (42) is connected with the rack (15), one end of the self-locking device (2) is rotatably connected with the mounting device (3), the other end of the self-locking device (2) is mounted with the driving gear (11), the hand-held terminal is connected with a sensor (43).
2. The intelligent quick elevator steel wire rope tension testing device according to claim 1, characterized in that: the number of the racks (15) is a multiple of 2.
3. The intelligent quick elevator steel wire rope tension testing device according to claim 2, characterized in that: installation device (3) have the box of symmetry open-ended for upper portion, the inside wall of installation device (3) has flexible track (31), rack (15) and flexible track (31) sliding connection and rack (15) stretch out through the opening, drive arrangement (1) still includes first driven gear (13) and second driven gear (14), first driven gear (13), second driven gear (14) all are connected with installation device (3), rack (15) on right side, first driven gear (13), driven gear (12), drive gear (11), second driven gear (14), left rack (15) mesh in order.
4. The intelligent quick elevator steel wire rope tension testing device according to claim 3, characterized in that: the magnetic attraction device is characterized in that magnetic attraction mechanisms (32) are arranged on two sides of the mounting device (3), each magnetic attraction mechanism (32) comprises a spiral pipeline and an iron rod penetrating through the spiral pipeline, two ends of each spiral pipeline are connected with a battery through wires, and a switch is arranged on each wire.
5. The intelligent quick elevator steel wire rope tension testing device according to claim 2, characterized in that: the testing device (4) further comprises a testing mounting frame (41), the sliding rail (42) is connected with the testing mounting frame (41), the racks (15) are symmetrically arranged at the lower end of the testing mounting frame (41), and arc-shaped stop levers (431) are arranged at two ends of the sensor (43).
6. The intelligent quick elevator steel wire rope tension testing device according to claim 4, characterized in that: the handheld terminal is provided with a wireless signal receiver, a display screen and an integrated circuit board which is responsible for data processing, the handheld terminal is connected with a switch on a wire, and the handheld terminal is connected with a printer for data printing.
7. The intelligent quick elevator steel wire rope tension testing device according to any one of claims 1-5, characterized in that: the mounting device (3) is mounted on a support on the car side or the counterweight side below the elevator traction machine.
8. The intelligent quick elevator steel wire rope tension testing device according to claim 1, characterized in that: the number of the sensors (43) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652951.7A CN113247735A (en) | 2021-06-11 | 2021-06-11 | Intelligent and rapid elevator steel wire rope tension testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652951.7A CN113247735A (en) | 2021-06-11 | 2021-06-11 | Intelligent and rapid elevator steel wire rope tension testing device |
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| Publication Number | Publication Date |
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| CN113247735A true CN113247735A (en) | 2021-08-13 |
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| CN202110652951.7A Pending CN113247735A (en) | 2021-06-11 | 2021-06-11 | Intelligent and rapid elevator steel wire rope tension testing device |
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| CN (1) | CN113247735A (en) |
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| CN212953679U (en) * | 2020-07-02 | 2021-04-13 | 广东省特种设备检测研究院珠海检测院 | Device for measuring tightness of steel wire rope of elevator |
| CN213326207U (en) * | 2020-09-11 | 2021-06-01 | 湖北特种设备检验检测研究院 | Portable elevator inspection detection warning device |
| CN214935131U (en) * | 2021-06-11 | 2021-11-30 | 广东省特种设备检测研究院惠州检测院 | Intelligent and rapid elevator steel wire rope tension testing device |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106644230A (en) * | 2017-03-01 | 2017-05-10 | 泰亿机械工业（江苏）有限公司 | Driving belt tension detection device and application thereof |
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