CN206886553U - A kind of fracture prior-warning device based on steel wire rope resistance variations - Google Patents
A kind of fracture prior-warning device based on steel wire rope resistance variations Download PDFInfo
- Publication number
- CN206886553U CN206886553U CN201720733246.9U CN201720733246U CN206886553U CN 206886553 U CN206886553 U CN 206886553U CN 201720733246 U CN201720733246 U CN 201720733246U CN 206886553 U CN206886553 U CN 206886553U
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- China
- Prior art keywords
- warning device
- steel wire
- wire rope
- test side
- resistance variations
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Abstract
The utility model discloses a kind of fracture prior-warning device based on steel wire rope resistance variations, including detection means and warning device；The detection means includes the first test side being linked in sequence with wire, measuring cell and the second test side；The measuring cell connects warning device.The utility model device is provided with detection means, can be detected by its two test sides and measuring cell the steel wire rope resistance variations after wire cable rupture enter caused by curent change；After wire cable rupture is detected, detection means can launch pre-warning signal so that warning device is alarmed, and so as to remind related personnel to handle in time fracture steel wire rope, makes operation safer.
Description
Technical field
The utility model belongs to wire rope standard field, is related to a kind of tower crane hoist rope device, more particularly to one
Fracture prior-warning device of the kind based on steel wire rope resistance variations.
Background technology
Tower crane is a kind of crane gear also known as " derrick crane " the most frequently used on construction site, with a section spreading
(height) (referred to as " standard knot "), for hanging the raw material of the constructions such as working reinforcing bar, wood stupefied, concrete, steel pipe.The tower in China
Machine industry starts to start to walk the 1950s, relative to the middle Western European countries due to the depression of tower crane industry caused by construction industry weakness
Gas, the tower crane industry in China are in a rapid developing period.
Tower crane is a kind of essential equipment on building site, although the insurance design such as suspension hook that have been necessary for tower crane
Safeties, reel safeties etc., but job site is lack of standardization due to operating, and not in time, long-term high intensity uses for maintenance
Reason, wire cable rupture can be caused, and this will certainly cause and its serious security incident.
Steel wire rope breaks main cause and does not reach hung lifting capacity including steel wire rope long term wear, and overload causes steel wire to break
Split, institute's hanging object product there are the corner angle of sharp high rigidity, cut off steel wire after stress.If 6 × 19-d of steel wire rope (d wirerope diameters)
Fracture of wire quantity is more than 5 in 6d length, and fracture of wire quantity is more than 10 in 30d length；Although or without fracture of wire, steel wire
Rope abrasion reaches the 40% of its diameter, or steel wire rope relative to nominal diameter reduce 7% it is even more more when, then should do and scrap place
Reason.And these changes can be sent out with steel wire rope resistance variations and be reflected.
Based on above-mentioned background, it is necessary to propose a kind of prior-warning device for detecting wire cable rupture.
Utility model content
The shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided one kind is based on steel wire rope resistance variations
Fracture prior-warning device.
The purpose of this utility model solves by the following technical programs：
This fracture prior-warning device based on steel wire rope resistance variations, including detection means and warning device；The detection
Device includes the first test side being linked in sequence with wire, measuring cell and the second test side；The measuring cell connection alarm
Device.
First test side is provided with the first roller.
Second test side is provided with the second roller.
The periphery of first roller and the second roller is provided with groove.
Measuring cell is central processing unit or single-chip microcomputer.
Warning device is signal lamp or buzzer.
First test side is provided with the first protective cover.
Second test side is provided with the second protective cover.
The structure that is connected is provided with first protective cover and the second protective cover.
Detection means also includes fixed mount；First test side, measuring cell and the second test side are arranged on fixed mount.
The utility model device has following effective：
The utility model device is provided with detection means, and steel wire can be detected by its two test sides and measuring cell
Steel wire rope resistance variations after fracture of rope enter caused by curent change；After wire cable rupture is detected, detection means can be sent out
Pre-warning signal is penetrated so that warning device is alarmed, so as to remind related personnel to handle in time fracture steel wire rope, makes operation more
Safety.
First test side is provided with the first roller, is contacted by roller with steel wire rope to measure, makes the first test side and steel
The contact surface of cord is more stable, and measurement is more accurate.
Second test side is provided with the second roller, is contacted by roller with steel wire rope to measure, makes the second test side and steel
The contact surface of cord is more stable, and measurement is more accurate.
The periphery of first roller and the second roller is provided with groove, on the one hand groove makes steel wire rope not skid off roller
Periphery, it is bigger on the other hand make it that roller contacts with steel wire rope, measurement is more accurate.
Measuring cell is central processing unit or single-chip microcomputer, and central processing unit or single-chip microcomputer measuring and calculating are faced to resistance variations to early warning
During dividing value, pre-warning signal can be launched so that warning device is alarmed.
Warning device is signal lamp or buzzer, and after pre-warning signal is received, signal lamp or buzzer send alarm signal
Number.
First test side is provided with the first protective cover, protects the first test side so that connection and measurement are safer, can
Lean on.
Second test side is provided with the second protective cover, protects the second test side so that connection and measurement are safer, can
Lean on.
The structure that is connected set on first protective cover and the second protective cover, the present apparatus can be fixed on a certain undetermined
Position.
First test side, measuring cell and the second test side are arranged on proprietary fixed mount, using more convenient.
Brief description of the drawings
Fig. 1 is organigram of the present utility model；
Fig. 2 is scheme of installation of the present utility model；
Fig. 3 is schematic diagram before protective cover of the present utility model installation；
Fig. 4 is schematic diagram after protective cover of the present utility model installation.
Wherein：1 is steel wire rope；2 be the first protective cover bearing；3 be the first roller；4 be measuring cell；5 be the second guarantor
Shield；6 be the first protective cover；7 be wire；8 be warning device；9 be tower crane crane arm steel truss；10 be the second roller；11 are
Fixed mount.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1-4, this fracture prior-warning device based on steel wire rope resistance variations, including detection means and warning device
8；The detection means includes the first test side A, the test side B of measuring cell 4 and second being linked in sequence with wire；Detection means
Power supply is respectively connected with warning device 8 so that detection means and warning device 8 are powered；The connection of the measuring cell 4 alarm dress
Put 8.In use, the first test side A, the test side B of measuring cell 4 and second directly can be fixed on tower crane crane steel truss
On.Fixed when the utility model device, when steel wire rope slides up and down, it is possible to which whether detection steel wire rope difference section breaks in real time
Split.
First the first test side A, the test side B of measuring cell 4 and second can also be fixed on fixed block 11, Ran Houzai
.What the first test side A, measuring cell 4, the second test side B and fixed block 11 formed is integrally attached to tower crane crane steel truss
On frame.Fixed when the present apparatus, when steel wire rope slides up and down, it is possible to which whether detection steel wire rope difference section is broken in real time.
First test side A is provided with the first roller 3, and the first roller 3 is fixed by turning rolls.
Second test side B is provided with the second roller 10, and the second roller 10 is fixed by turning rolls.
The periphery of first roller 3 and the second roller 10 is provided with groove.Steel wire rope respectively on the outside of roller and
Embedded roller groove, steel wire rope slide up and down while drive roller to rotate on the inside of one roller, ensure that effective contact.Disk roller is
Steel, to provide enough intensity.Roller concave Iy curved designs the contact that can fully ensure that steel wire rope, occurs without break-off.
Ensure the continuity of signal acquisition.
Measuring cell 4 is central processing unit or single-chip microcomputer.Ensure output voltage it is certain in the case of, central processing unit or
Monolithic function calculates the resistance between the first test side and the second test side according to the current value fed back, if there is fracture of wire shape
Difference be present in condition, the then resistance value of fracture of wire section and original intact, and other partial ohmics not broken.And this difference can draw
Play the change of electric current.Regulation setting limitation is scrapped according to steel wire rope, transmission signal causes alarm to fill if electric current exceedes the limitation
Put alarm.
Warning device 8 is signal lamp or buzzer.
First test side A is provided with the first protective cover 6.
Second test side B is provided with the second protective cover 5.
The structure that is connected is provided with first protective cover 6 and the second protective cover 5.The structure that is connected is protective cover one
End is separated into two valves, and other end termination position is provided with riveted structure.In use, two valves are separated, centre wraps tower crane
Crane arm steel truss, then two valves are combined, in the riveting of other end termination position.Protective cover, which uses, has anti-corrosion every edge
Rigid plastics.First protective cover bearing 2 represents, state after the riveting for the structure that is connected.
Detection means also includes fixed mount 11；First test side A, the test side B of measuring cell 4 and second are arranged at fixation
On frame 11.
Electric current used in the utility model device is weak current, can be connected respectively by wire 7 with operation room power positive cathode
Meet the first test side A and the second test side B so that detection means is powered.Electric wire does not produce attached along steel truss disposed inboard
Effect.In order to which winding displacement is more neat, safety, preferably the wire between measuring cell 4 and warning device 8, also with operation room electricity
Source both positive and negative polarity connection the first test side A and the second test side B winding displacement road.Warning device 8 is arranged on operation room, can timely send out
Existing danger, so that energy timely processing is dangerous.
Fig. 3 illustrates state when the second protective cover 5 is opened, and Fig. 4 represents that the second protective cover 5 closes the shape after being connected
State.
Claims (10)
1. a kind of fracture prior-warning device based on steel wire rope resistance variations, it is characterised in that including detection means and warning device
(8)；The detection means includes the first test side (A) for being linked in sequence with wire, measuring cell (4) and the second test side (B)；
Measuring cell (4) the connection warning device (8).
2. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 1, it is characterised in that described
First test side (A) is provided with the first roller (3).
3. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 2, it is characterised in that described
Second test side (B) is provided with the second roller (10).
4. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 3, it is characterised in that described
The periphery of first roller (3) and the second roller (10) is provided with groove.
5. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 1, it is characterised in that described
Measuring cell (4) is central processing unit or single-chip microcomputer.
6. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 1, it is characterised in that described
Warning device (8) is signal lamp or buzzer.
7. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 1, it is characterised in that described
First test side (A) is provided with the first protective cover (6).
8. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 7, it is characterised in that described
Second test side (B) is provided with the second protective cover (5).
9. a kind of fracture prior-warning device based on steel wire rope resistance variations according to claim 8, it is characterised in that described
The structure that is connected is provided with first protective cover (6) and the second protective cover (5).
A kind of 10. fracture prior-warning device based on steel wire rope resistance variations according to claim 1, it is characterised in that institute
Stating detection means also includes fixed mount (11)；First test side (A), measuring cell (4) and the second test side (B) are arranged at admittedly
Determine on frame (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733246.9U CN206886553U (en) | 2017-06-22 | 2017-06-22 | A kind of fracture prior-warning device based on steel wire rope resistance variations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733246.9U CN206886553U (en) | 2017-06-22 | 2017-06-22 | A kind of fracture prior-warning device based on steel wire rope resistance variations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206886553U true CN206886553U (en) | 2018-01-16 |
Family
ID=61316397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720733246.9U Expired - Fee Related CN206886553U (en) | 2017-06-22 | 2017-06-22 | A kind of fracture prior-warning device based on steel wire rope resistance variations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206886553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847169A (en) * | 2020-07-31 | 2020-10-30 | 河池学院 | Elevator traction steel wire rope state monitoring and early warning system and method based on algorithm model |
| CN113804728A (en) * | 2021-09-16 | 2021-12-17 | 金华好哥信息技术有限公司 | Steel wire rope detection system, steel wire rope detection method and clothes airing machine |
-
2017
- 2017-06-22 CN CN201720733246.9U patent/CN206886553U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847169A (en) * | 2020-07-31 | 2020-10-30 | 河池学院 | Elevator traction steel wire rope state monitoring and early warning system and method based on algorithm model |
| CN113804728A (en) * | 2021-09-16 | 2021-12-17 | 金华好哥信息技术有限公司 | Steel wire rope detection system, steel wire rope detection method and clothes airing machine |
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Legal Events
| 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: 20180116 Termination date: 20180622 |