CN1865879A - Hydraulic tension sensor for measuring loading of hoisting rope - Google Patents
Hydraulic tension sensor for measuring loading of hoisting rope Download PDFInfo
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- CN1865879A CN1865879A CN 200610044887 CN200610044887A CN1865879A CN 1865879 A CN1865879 A CN 1865879A CN 200610044887 CN200610044887 CN 200610044887 CN 200610044887 A CN200610044887 A CN 200610044887A CN 1865879 A CN1865879 A CN 1865879A
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Abstract
The disclosed hydraulic tension sensor for the load on hoisting rope comprises: a base with an oil cylinder hole to arrange a piston, a break valve fixed on base and arranged an inner cavity crossed to former hole, a thimble in the cavity, and a pressure sensing element set on the valve to connect with the inner cavity; wherein, all of the piston top plane, the hole, the inner cavity and the sensing element form a sealed cavity to fill liquid medium. This invention is convenient to maintenance.
Description
Technical field
The present invention relates to test the sensor of hoister wire rope load tension force, belong to the tension pick-up technical field.
Background technology
Multirope friction winder is the main lifting means in colliery, bears lifting load weight jointly by many wire rope, and the tension force of hoisting cable (dynamic load) monitoring is particularly crucial serviceable life to guaranteeing the elevator system safe and reliable operation and prolonging wire rope.
By the monitoring of wire rope dynamic tension, can be easy to the magnitude of load that gets a promotion, can judge in the dustpan unloading process whether coal is unstowed according to the lifting load of reality, thereby can prevent the major accident that the skip bucket heavy duty is transferred.In the skip loading process,, can prevent that coal secondary in the measure hopper from packing in the skip bucket, thereby avoid seriously crossing the dress accident by monitoring actual lifting load and adding suitable control measure.
In the long-play process, produce tension imbalance owing to each root wire rope elastic deformation is different.The wire rope of overtension at first produces fatigue breakdown, and corresponding friction lining produces excessive wear.This shows that the uniform tension in order between monitoring steel wire rope tension size and maintenance rope to prolonging rope service-life, alleviates the liner wearing and tearing, guarantees that equipment safety operation has great significance.
Requirement of strength to hoisting cable in elevator system is very high, and the colliery promotes safety regulations regulation hoisting cable will 10 times safety coefficient.If tension pick-up is directly sealed in the problem that can cause two aspects in the wire rope, be the link that has increased elevator system on the one hand, reduced the security performance of elevator system; Second aspect, for guaranteeing 10 times of safety coefficient, selected tension pick-up range will reach 10 times of normal lifting load, and when therefore promoting normal load, the signal of sensor output is very little, and is non-linear bigger in the small-signal operation district.So the installation method that sensor is directly sealed in the wire rope is worthless.
For this reason, telescopic pressure-type sensor has appearred, its installation method be with telescopic pressure-type sensor sleeve on the hydraulic cylinder for adjusting rope screw rod of elevator system, and then screw on and transfer the rope nut to get final product.Hoisting cable tension force has become pressure to telescopic pressure transducer by transferring rope screw rod and nut power transfer function.This installation method can accurately be monitored steel wire rope tension, does not influence the security performance of elevator system again, and both just sensor produced strength failure, still can guarantee the reliability that wire rope connects; Simultaneously, be direct measuring steel wire rope tension, can the additional measuring error of generation power transmission.
Present telescopic pressure-type sensor is the socket type resistance strain type sensor, and its packing surface is bigger, is difficult to guarantee good sealing.Generally speaking, the pit shaft trickle is big, humid environment.When causing foil gauge moist in the pit shaft trickle is invaded sensor, sensor will destroy.Prove that in application the life-span of socket type resistance strain type sensor is very short, generally below half a year.
Summary of the invention
At the shortcoming of above-mentioned existing socket type resistance strain type sensor, the invention provides the hydraulic tension sensor of a kind of protection against the tide, reliable, measurement hoisting cable load that the life-span is long.
Hydraulic tension sensor of the present invention is by the following technical solutions:
This hydraulic tension sensor comprises sensor holder, piston, checking-valve body, thimble and pressure sensor, and sensor holder is provided with oil har opening, and piston is installed in this oil har opening; Checking-valve body is installed on the sensor holder, be provided with the inner chamber that communicates with oil har opening on the sensor holder in it, the thimble that is used to cut off or connect passage between oil har opening and the pressure sensor is installed in this inner chamber: pressure sensor is installed on the checking-valve body and with the inner chamber of checking-valve body and is communicated with; Piston-top surface, sensor holder oil har opening, checking-valve body inner chamber and pressure sensor end face form seal chamber, are full of hydraulic medium in the sealing cavity.
Be equipped with back-up ring and O-ring seal on thimble and the piston, seal.
Be provided with packing ring between the end of pressure sensor and the checking-valve body.
The inner chamber end of checking-valve body is provided with dustproof nut.
During use, above-mentioned hydraulic tension sensor is installed between the piston rod head and middle board spacer of the balancing cylinder on the Strength of Suspension Gear.The piston rod head acting force of balancing cylinder acts on the sensor holder, and the acting force of board spacer acts on the piston of sensor in the suspension.Steel wire rope tension acts on the piston of sensor by board spacer in hanging, piston is stressed to act on the hydraulic medium, make steel wire rope tension become the pressure of hydraulic medium, the pressure of hydraulic medium remakes and is used on the pressure sensor, converts hydraulic coupling to electric weight.
After adopting this form sensing, because each parts is a mechanical hook-up, so its life-span and reliability can guarantee.Because the pressure sensor volume is little, be very easy to make all-sealed, so its humidity resistance is very easily satisfied, thereby has guaranteed moisture resistance, the reliability of sensor integral body, has prolonged the life-span.According to test and applicable cases, its life-span is more than 2 years.
The present invention has not change and promotes the characteristics that suspended structure can the measuring steel wire rope tension, has to be convenient to install replacings, protection against the tide, reliably and the characteristics grown of life-span.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the present invention is installed in the user mode synoptic diagram on the Strength of Suspension Gear.
Fig. 3 is the left view of Fig. 2.
Among the figure: 1, sensor holder, 2, oil har opening, 3, piston, 4, big back-up ring, 5, large sealing packing ring, 6, checking-valve body, 7, thimble, 8, dustproof nut, 9, little back-up ring, 10, small sealing ring, 11, packing ring, 12, pressure sensor, 13, wire rope, 14, wedge rope_ring, 15, go up connecting pin, 16, side plate, 17, balancing cylinder, 18, middle plate, 19, hydraulic tension sensor, 20, cushion block, 21, commutation fork, 22, connecting pin down.
Embodiment
Embodiment
As shown in drawings, hydraulic tension sensor of the present invention is made up of sensor holder 1, piston 3, checking-valve body 6, thimble 7, dustproof nut 8, packing ring 11 and pressure sensor 12, and sensor holder 1 is provided with the mounting hole of oil har opening 2 and checking-valve body 6.Checking-valve body 6 is installed on the mounting hole on the sensor holder 1, and welds together with sensor holder 1.Thimble 7 is housed in the inner chamber of checking-valve body 6, thimble 7 is by in the inner chamber that is threaded in checking-valve body 6, rotate its end and make it mobile, can cut off or by logical oil har opening from sensor holder 1 to the hydraulic medium passage the pressure sensor 12, can under sensor holder 1 stress, cut off hydraulic medium replacing pressure sensor 12.Thimble 7 is provided with little back-up ring 9 and the small sealing ring 10 that is used to seal.The end of checking-valve body 6 inner chambers is provided with dustproof nut 8.Pressure sensor 12 is by in the threaded hole that is threaded in checking-valve body 6 lower ends, and its upper end is provided with packing ring 11.No matter adopt the pressure responsive element of which kind of form,, all be subjected to protection of the present invention as strain chip, diffuse si formula etc.Piston 3 is installed in the oil har opening 2 in the sensor holder 1, which is provided with big back-up ring 4 and large sealing packing ring 5 sealings.Formed seal chamber between piston 3 end faces, oil har opening 2, stop valve inner chamber and pressure sensor 12 end faces, be full of hydraulic medium in the sealing cavity, the sealing of hydraulic medium is by the large sealing packing ring on the piston 35, and small sealing ring 10 on the thimble 7 and the packing ring 11 above the pressure sensor 12 guarantee.
As shown in Figures 2 and 3, the Strength of Suspension Gear of wire rope 13 is made up of wedge rope_ring 14, middle plate 18, side plate 16, balancing cylinder 17.Wire rope 13 is connected wedge rope_ring 14 tops, and middle plate 18 is connected wedge rope_ring 14 bottoms by last connecting pin 15.The both sides of middle plate 18 are provided with side plate 16, are provided with cushion block 20 below.The bottom of side plate 16 is connected with commutation fork 21, and commutation fork 21 is provided with down connecting pin 22.Balancing cylinder 17 is installed on the side plate 16.Hydraulic tension sensor 19 of the present invention is installed between the piston rod head and cushion block 20 of the balancing cylinder 17 on the Strength of Suspension Gear, the piston rod head of balancing cylinder 17 is connected with the sensor holder 1 of hydraulic tension sensor 19, and cushion block 20 is connected with piston 3.The piston rod head acting force of balancing cylinder 17 acts on the sensor holder 1 of hydraulic tension sensor 19, and the acting force of the cushion block 20 of plate 18 acts on the piston 3 of hydraulic tension sensor 19 in the suspension.The tension force of wire rope 13 acts on the piston 3 of hydraulic tension sensor 19 by the cushion block of plate in hanging.Piston 3 stressed acting on the hydraulic medium make the tension force of wire rope 13 become the pressure of hydraulic medium, and the pressure of hydraulic medium remakes and is used on the pressure sensor 12, converts hydraulic coupling to electric weight.
Claims (5)
1. a hydraulic tension sensor of measuring hoisting cable load comprises sensor holder, piston, checking-valve body, thimble and pressure sensor, and it is characterized in that: sensor holder is provided with oil har opening, and piston is installed in this oil har opening; Checking-valve body is installed on the sensor holder, is provided with the inner chamber that communicates with oil har opening on the sensor holder in it, and the thimble that is used to cut off or connect passage between oil har opening and the pressure sensor is installed in this inner chamber; Pressure sensor is installed on the checking-valve body and with the inner chamber of checking-valve body and is communicated with; Piston-top surface, sensor holder oil har opening, checking-valve body inner chamber and pressure sensor end face form seal chamber, are full of hydraulic medium in the sealing cavity.
2. the hydraulic tension sensor of measurement hoisting cable load according to claim 1 is characterized in that: described thimble is provided with back-up ring and O-ring seal.
3. the hydraulic tension sensor of measurement hoisting cable load according to claim 1 is characterized in that: described piston is provided with back-up ring and O-ring seal.
4. the hydraulic tension sensor of measurement hoisting cable load according to claim 1 is characterized in that: be provided with packing ring between the end of described pressure sensor and the checking-valve body.
5. the hydraulic tension sensor of measurement hoisting cable load according to claim 1 is characterized in that: the inner chamber end of described checking-valve body is provided with dustproof nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610044887XA CN100412523C (en) | 2006-06-19 | 2006-06-19 | Hydraulic tension sensor for measuring loading of hoisting rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610044887XA CN100412523C (en) | 2006-06-19 | 2006-06-19 | Hydraulic tension sensor for measuring loading of hoisting rope |
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| Publication Number | Publication Date |
|---|---|
| CN1865879A true CN1865879A (en) | 2006-11-22 |
| CN100412523C CN100412523C (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610044887XA Active CN100412523C (en) | 2006-06-19 | 2006-06-19 | Hydraulic tension sensor for measuring loading of hoisting rope |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040135A (en) * | 2011-01-26 | 2011-05-04 | 徐州泰荣煤矿设备有限公司 | Bearing real-time monitoring system for single-rope winding hoist system |
| CN102173359A (en) * | 2011-01-24 | 2011-09-07 | 徐州泰荣煤矿设备有限公司 | Sensing device for carrying out real-time monitoring on load bearing of single-rope winding hoisting system |
| CN105173974A (en) * | 2015-09-27 | 2015-12-23 | 洛阳矿山机械工程设计研究院有限责任公司 | Compensation method for steel wire rope synchronous compensation wheel of multi-rope winding type elevator |
| CN105347132A (en) * | 2015-12-18 | 2016-02-24 | 中国矿业大学 | Tension monitoring sensor for eliminating vibration peak value of elevator steel wire ropes |
| CN107777515A (en) * | 2016-08-30 | 2018-03-09 | 徐州大恒测控技术有限公司 | A kind of hoist wire rope tension sensor of dissipation shock loading |
| CN108931331A (en) * | 2017-12-14 | 2018-12-04 | 杭州电子科技大学 | Rope tension measuring device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956134A (en) * | 1982-09-25 | 1984-03-31 | Mitsubishi Electric Corp | Detector for tensile strength of extended cable |
| JPH09105689A (en) * | 1995-10-12 | 1997-04-22 | Toyoda Mach Works Ltd | Tension measuring apparatus |
| CN1193104A (en) * | 1998-04-06 | 1998-09-16 | 甄立新 | Self-jacking type sensor |
| CN2909203Y (en) * | 2006-06-19 | 2007-06-06 | 山东大学 | Hydraulic tension sensor for measuring loading of lifting rope |
-
2006
- 2006-06-19 CN CNB200610044887XA patent/CN100412523C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173359A (en) * | 2011-01-24 | 2011-09-07 | 徐州泰荣煤矿设备有限公司 | Sensing device for carrying out real-time monitoring on load bearing of single-rope winding hoisting system |
| CN102173359B (en) * | 2011-01-24 | 2013-01-30 | 徐州泰荣煤矿设备有限公司 | Sensing device for carrying out real-time monitoring on load bearing of single-rope winding hoisting system |
| CN102040135A (en) * | 2011-01-26 | 2011-05-04 | 徐州泰荣煤矿设备有限公司 | Bearing real-time monitoring system for single-rope winding hoist system |
| CN105173974A (en) * | 2015-09-27 | 2015-12-23 | 洛阳矿山机械工程设计研究院有限责任公司 | Compensation method for steel wire rope synchronous compensation wheel of multi-rope winding type elevator |
| CN105347132A (en) * | 2015-12-18 | 2016-02-24 | 中国矿业大学 | Tension monitoring sensor for eliminating vibration peak value of elevator steel wire ropes |
| CN105347132B (en) * | 2015-12-18 | 2017-09-01 | 中国矿业大学 | A kind of hoist wire rope tension monitoring sensor for eliminating vibration peak |
| CN107777515A (en) * | 2016-08-30 | 2018-03-09 | 徐州大恒测控技术有限公司 | A kind of hoist wire rope tension sensor of dissipation shock loading |
| CN107777515B (en) * | 2016-08-30 | 2019-04-02 | 徐州大恒测控技术有限公司 | A kind of hoist wire rope tension sensor of dissipation shock loading |
| CN108931331A (en) * | 2017-12-14 | 2018-12-04 | 杭州电子科技大学 | Rope tension measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100412523C (en) | 2008-08-20 |
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