CN111517198B - Force measuring device for clamping elevator suspension device - Google Patents
Force measuring device for clamping elevator suspension device Download PDFInfo
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- CN111517198B CN111517198B CN202010354668.1A CN202010354668A CN111517198B CN 111517198 B CN111517198 B CN 111517198B CN 202010354668 A CN202010354668 A CN 202010354668A CN 111517198 B CN111517198 B CN 111517198B
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- clamping
- fixed support
- force measuring
- lifting belt
- module
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- 239000000725 suspension Substances 0.000 title claims abstract description 43
- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The invention relates to a force measuring device for clamping an elevator suspension device. The force measuring device for clamping the elevator hanging device has the characteristics of strong universality, simplicity in installation and reliability in measurement. The technical proposal is as follows: a force measuring device for gripping an elevator suspension, characterized in that: the device comprises a fixed support which is connected with a hanging device through a lifting belt and can be placed at the bottom end of a hoistway, a force measuring module which is arranged on the upper surface of the fixed support to measure the stress condition of the hanging device and is provided with a signal processing unit, and a falling prevention module which is used for connecting the fixed support with the hanging device to prevent the fixed support and the clamping module from falling accidentally during installation.
Description
Technical Field
The invention relates to a force measuring device for clamping an elevator suspension device, in particular to a dynamic force measuring device for clamping a suspension device during elevator safety quantitative evaluation.
Background
The elevator hanging device is mainly composed of a steel wire rope and a composite steel belt, and generates traction force with a traction wheel to drive the cabs at two sides of the hanging device to move up and down in a reciprocating manner. When the elevator maintenance and safety detection personnel detect the traction force, whether the traction force meets the standard or not and the requirement of the gauge is mainly determined in a qualitative mode, and the traction force cannot be quantitatively detected. The tension difference of the hanging devices at the two sides of the traction sheave can determine a balance coefficient and is also an important parameter in elevator detection. The drag force, balance coefficient, etc. can be determined by detecting the tension of the suspension device. The space arrangement among traction wheels, suspension devices and traction machine base beams of different manufacturers is different, the arrangement of elevators of different models of the manufacturers is also different, the space area of a machine room clamping suspension device is often narrow, even no space is reserved for a large detection instrument, and the space is reserved for the detection instrument universality of the clamping suspension device. The suspension device usually enters the machine room upwards through a hoistway opening (functional opening) at the top of the hoistway, and the top of the hoistway opening is provided with a ring frame 20-2 (the ring frame is surrounded by metal plates or wood plates and cement according to national standard) of more than 5cm, and the top of the ring frame is stressed to cause serious deformation of the ring frame, so that defects such as inaccurate test data and the like can be generated when the suspension device is used as a supporting point during detection.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a force measuring device for clamping an elevator suspension device, which has the characteristics of strong universality, simple installation and reliable measurement.
The technical scheme of the invention is as follows:
a force measuring device for gripping an elevator suspension, characterized in that: the device comprises a fixed support which is connected with a hanging device through a lifting belt and can be placed at the bottom end of a hoistway, a force measuring module which is arranged on the upper surface of the fixed support to measure the stress condition of the hanging device and is provided with a signal processing unit, and a falling prevention module which is used for connecting the fixed support with the hanging device to prevent the fixed support and the clamping module from falling accidentally during installation.
The clamping module comprises two clamping brackets, a clamping bracket connecting piece for connecting the two clamping brackets, a pair of clamping movable blocks pressed by the two clamping brackets to clamp the hanging device, and a lifting belt fixing assembly for fixing the lifting belt; one side of the clamping movable block is slidably positioned in a chute of the clamping bracket, a bayonet which is matched with the specification of the hanging device is formed on the opposite side of the clamping movable block, one end of the lifting belt is fixed on the hanging device through the clamping module, and the other end of the lifting belt is connected with a connecting rod of the fixed support.
The lifting belt fixing assembly comprises a narrow groove which is manufactured on the clamping bracket and used for allowing the lifting belt to pass through, and a Chinese character 'ri' shaped buckle which is used for locking the lifting belt.
The other end of the lifting belt is folded and then sewn and fixed to form a ferrule, and the ferrule is sleeved on the connecting rod of the fixed support in a penetrating manner, so that the connection with the fixed support is realized.
The anti-falling module comprises a clamping module connected with the suspension device and a protection wire with one end connected with the clamping module and the other end connected with the fixed support.
The middle of the fixed support is provided with a concave notch so as to avoid the collision of the suspension device and the fixed support during detection and prevent the occurrence of damage to the instrument due to collision interference of the suspension device and the fixed support.
The force measuring modules are two unidirectional force measuring sensors symmetrically fixed on the fixed support and act on the bottom end of a hoistway mouth at the same time, and the unidirectional force measuring sensors transmit data to the signal processing unit through signal wire connecting wires.
The signal processing unit comprises a signal amplifier, an analog-to-digital converter and a wireless signal transmitter; the wireless signal transmitter transmits the data to the upper terminal display in a wireless mode.
The lifting belt is of a woven belt-shaped structure with width and thickness, and is made of carbon fiber and aramid fiber textile so as to bear large lifting force.
The anti-falling module is used for fixing the fixed support in the air during installation; during detection, the protection rope is connected to the fixed support and the clamping module, so that accidental falling of the fixed support and the clamping module is prevented.
The clamping modules act on a single suspension device, preferably a high-force clamping pliers.
The beneficial effects of the invention are as follows:
the invention provides a force measuring device for clamping an elevator suspension device, which has strong detection universality and simple and reliable measurement, and can effectively solve the problem caused by the narrow space of the suspension device in the existing method; meanwhile, the clamping movable block is used for replacing a conventional single fixed clamping module, so that the universality of detection and the portability of an instrument are greatly improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic diagram showing the relative positions of the fixed support and the well mouth in the present invention.
Fig. 3 is a schematic perspective view of the working state of the present invention.
FIG. 4 is a schematic diagram showing the connection relationship between the fixing support and the pulling belt in the present invention.
Fig. 5 is a schematic view showing an operation state of the clamping module in the present invention.
Fig. 6 is a schematic perspective view of the clamping block of the present invention (with one clamping bracket removed for clarity).
Fig. 7 is a schematic perspective view of a fixing assembly for a lifting strap in the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
The inventor finds that the hoistway roof 20 is made of reinforced cement, and the other side area of the bottom end of the hoistway mouth 20-1 corresponding to the ring frame is a plane which is horizontally arranged, so that the hoistway roof can bear large acting force; can be used as a stress point of a force measuring device.
According to the thought, in the force measuring device for clamping the elevator suspension device, the fixed support 9 is positioned below the well mouth and is connected with the suspension device 1 through the lifting belt 2, and the length of the fixed support is longer than that of the well mouth, so that two ends of the fixed support can be blocked at two sides of the well mouth; a force measuring module 8 with a signal processing unit is arranged on the upper surface of the fixed support and is used for measuring the stress condition of the suspension device; a battery (not shown) for powering the force measuring module and the signal processing unit is also mounted in the stationary support. The anti-falling module connects the fixed support and the clamping module with the suspension device so as to prevent the fixed support and the clamping module from falling accidentally during installation.
One end of the lifting belt is fixed on the suspension device through the clamping module, and the other end of the lifting belt is connected with a connecting rod (preferably, the connecting rod is fixed on the fixing support by adopting a U-shaped bolt) of the fixing support. As can be seen from fig. 7: the other end of the lifting belt is folded and sewn and fixed to form a ferrule, and the ferrule is sleeved on the connecting rod 10 of the fixed support, so that the connection with the fixed support is realized.
In the clamping module, two clamping brackets 5 are arranged in parallel, and a clamping bracket connecting piece 3 (preferably a bolt) penetrates through bolt holes on the two clamping brackets and tightens the two clamping brackets; a plurality of pairs of clamping movable blocks 4 are clamped between the two clamping brackets and are pressed by the two clamping brackets to clamp the hanging device; as can be seen from fig. 1 and 6: one side of each clamping movable block is slidably positioned in a sliding groove 5-2 of the clamping bracket, and the opposite side is provided with a plurality of bayonets 4-1 (preferably semi-cylindrical buckles); the bayonets of the pair of clamping movable blocks are opposite to each other, and are mutually matched and clamped with a single hanging device (such as a single steel wire rope). The shape and the size of the bayonet are suitable for the specification of the suspension device, so that the clamping movable block can be flexibly replaced according to the requirement.
The lifting belt fixing assembly is used for fixing the lifting belt on the clamping bracket; the lifting belt fixing assembly comprises a narrow groove 5-1 which is manufactured on the clamping bracket and used for the lifting belt to pass through, and a Chinese character 'ri' shaped buckle 11 which is used for locking the lifting belt; so as to steplessly adjust the maximum vertical distance between the clamping module and the fixed support according to the applicable places.
In order to prevent the falling risk of the fixed support and the clamping module during detection, a falling prevention module is arranged. The fall protection module comprises a clamping module 7 (preferably a high-force clamping jaw) connected to the suspension device, and a protection wire 6 (preferably a wire rope) connected to the clamping module at one end and to the fixed support at the other end.
Further, a concave notch 12 is arranged in the middle of the fixed support, so that the suspension device is prevented from being rubbed and bumped, and the phenomenon that an instrument is damaged due to collision interference between the suspension device and the fixed support during detection is prevented.
The force measuring module is symmetrically fixed on the fixed support and comprises two force measuring sensors (preferably U-shaped or S-shaped unidirectional force measuring sensors; conventional devices); the interval distance of the two force transducers is greater than the maximum gap of the well mouth, so that the force transducers can act on the bottom end of the well mouth at the same time to perform pressure test at the position corresponding to the ring frame during operation, and data are transmitted to the signal processing unit through the signal wire connecting wire. The signal processing unit (omitted in the prior art) comprises a signal amplifier, an analog-to-digital converter and a wireless signal transmitter; the wireless signal transmitter transmits data to an upper terminal display (omitted from the figure) in a wireless manner.
The lifting belt is of a woven belt-shaped structure with width and thickness, and is made of carbon fiber and aramid fiber textile so as to bear large lifting force.
The anti-falling module is used for fixing the fixed support in the air during installation; during detection, the protection rope is connected to the fixed support and the clamping module, so that accidental falling of the fixed support and the clamping module is prevented.
The working principle of the invention is as follows: a clamping module and a falling-preventing module are arranged on a hanging device at a proper position on the upper part of a machine room ring frame by a detection personnel, a fixed support connected with a lifting belt is downwards penetrated through a well mouth, and the other end of the lifting belt is fixed on the clamping module; then, the lifting belt is telescopically adjusted through the Chinese character 'ri' shaped buckle, so that two force transducers on the fixed support act on the lower end area of the ring frame at the top of the well. When the overhaul is performed, the suspension device ascends, the fixing support is pulled through the clamping module and the lifting belt, the two force transducers on the fixing support are pressed to output signals, and the signal processing unit wirelessly transmits the signal data to the upper terminal display.
Claims (7)
1. A force measuring device for gripping an elevator suspension, characterized in that: the device comprises a fixed support (9) which is connected with a hanging device (1) through a lifting belt (2) and can be blocked at the bottom end of a hoistway, a force measuring module (8) which is arranged on the upper surface of the fixed support to measure the stress condition of the hanging device and is provided with a signal processing unit, and a falling prevention module which is used for connecting the fixed support with the hanging device to prevent the fixed support and a clamping module from falling accidentally during installation;
one end of the lifting belt is fixed on the suspension device through the clamping module, and the other end of the lifting belt is connected with a connecting rod (10) of the fixed support; the clamping module comprises two clamping brackets (5), a clamping bracket connecting piece (3) for connecting the two clamping brackets, a pair of clamping movable blocks (4) pressed by the two clamping brackets to clamp the hanging device, and a lifting belt fixing assembly for fixing the lifting belt; one side of the clamping movable block is slidably positioned in a chute (5-2) of the clamping bracket, and the opposite side is provided with a bayonet (4-1) which is suitable for the specification of the suspension device;
The connecting rod is fixed on the fixed support by adopting a U-shaped bolt;
The lifting belt fixing assembly comprises a narrow groove (5-1) which is manufactured on the clamping bracket and used for the lifting belt to pass through, and a Chinese character 'ri' buckle (11) which is used for locking the lifting belt;
the other end of the lifting belt is folded and then sewn and fixed to form a ferrule, and the ferrule is sleeved on the connecting rod of the fixed support in a penetrating manner, so that the connection with the fixed support is realized.
2. Force measuring device for gripping an elevator suspension according to claim 1, characterized in that: the anti-falling module comprises a clamping module (7) connected with the suspension device and a protection wire (6) with one end connected with the clamping module and the other end connected with the fixed support, so that falling risks of the fixed support and the clamping module during detection are prevented.
3. Force measuring device for gripping an elevator suspension according to claim 2, characterized in that: the middle of the fixed support is provided with a concave notch (12) so as to avoid the collision of the suspension device and the fixed support during detection and prevent the occurrence of damage to the instrument due to collision interference of the suspension device and the fixed support.
4. A force measuring device for gripping an elevator suspension according to claim 3, characterized in that: the force measuring modules are two unidirectional force measuring sensors symmetrically fixed on the fixed support and act on the bottom end of a hoistway mouth at the same time, and the unidirectional force measuring sensors transmit data to the signal processing unit through signal wires.
5. Force measuring device for gripping an elevator suspension according to claim 4, characterized in that: the signal processing unit comprises a signal amplifier, an analog-to-digital converter and a wireless signal transmitter; the wireless signal transmitter transmits the data to the upper terminal display in a wireless mode.
6. Force measuring device for gripping an elevator suspension according to claim 5, characterized in that: the lifting belt is of a woven belt-shaped structure with width and thickness, and is made of carbon fiber and aramid fiber textile so as to bear large lifting force.
7. Force measuring device for gripping an elevator suspension according to claim 6, characterized in that: the clamping module acts on a single suspension device and is a high-force clamping clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010354668.1A CN111517198B (en) | 2020-04-29 | Force measuring device for clamping elevator suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010354668.1A CN111517198B (en) | 2020-04-29 | Force measuring device for clamping elevator suspension device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111517198A CN111517198A (en) | 2020-08-11 |
| CN111517198B true CN111517198B (en) | 2024-07-02 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212198038U (en) * | 2020-04-29 | 2020-12-22 | 浙江赛福特特种设备检测有限公司 | Force measuring device for clamping elevator suspension device |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212198038U (en) * | 2020-04-29 | 2020-12-22 | 浙江赛福特特种设备检测有限公司 | Force measuring device for clamping elevator suspension device |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220624 Address after: 310020 No. 211 Kaixuan Road, Shangcheng District, Hangzhou, Zhejiang Applicant after: Zhejiang Institute of Special Equipment Science Address before: 310020, 211 triumph Road, Hangzhou, Zhejiang, Jianggan District Applicant before: ZHEJIANG SAIFUTE SPECIAL EQUIPMENT INSPECTION Co.,Ltd. Applicant before: Zhejiang Academy of special equipment science |
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| GR01 | Patent grant |