CN203432733U - Hydraulic tension sensor - Google Patents
Hydraulic tension sensor Download PDFInfo
- Publication number
- CN203432733U CN203432733U CN201320557860.6U CN201320557860U CN203432733U CN 203432733 U CN203432733 U CN 203432733U CN 201320557860 U CN201320557860 U CN 201320557860U CN 203432733 U CN203432733 U CN 203432733U
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- valve body
- wear
- checking
- gauge stand
- oil cylinder
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- Expired - Fee Related
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Abstract
A hydraulic tension sensor comprises a sensor seat, a stop valve body arranged on the sensor seat and a gauge stand arranged on the stop valve body. The sensor seat is provided with an oil cylinder hole. The oil cylinder hole is provided with a piston. A hydraulic medium is filled in the oil cylinder hole. An inner cavity which is connected with the oil cylinder hole is arranged in the stop valve body. A side surface of the stop valve body is provided with an empty slot which is connected with the inner cavity. A connecting flange is welded in the empty slot. The connecting flange is connected with the gauge stand through a wear-resisting diaphragm pad. One end of the gauge stand is connected with a pressure gauge. The other end of the gauge stand is provided with a cavity which is full of the hydraulic medium and is connected with the pressure gauge. An inner cavity of the stop valve body is provided with a thimble used for cutting off or connecting a channel between the oil cylinder hole and the wear-resisting diaphragm pad. The wear-resisting diaphragm pad is higher than an inner wall side of the channel. The sensor of the utility model possesses characteristics that the tension of a steel wire rope can be measured without changing an improving the suspended structure; installation and replacing are convenient; moistureproof, reliable and long-service-life performance are possessed.
Description
Technical field
The utility model relates to the sensor of test steel wire rope of hoist load tension force, is specially a kind of hydraulic pressure tension pick-up.
Background technology
Multirope friction winder is the main lifting means in colliery, by many wire rope shared lifting load weight, the tension force of hoisting cable (dynamic load) monitoring is particularly crucial to guaranteeing elevator system safe and reliable operation and prolonging service life of steel wire.
By wire rope dynamic tension prison side, can be easy to the magnitude of load that gets a promotion, according to actual lifting load, can judge in Skip Getting through Dump Rail whether coal is unstowed, thereby can prevent the major accident of skip bucket heavy-load lowering.In skip loading process, by monitoring actual lifting load and adding suitable control measure, can prevent that the coal secondary in measure hopper from packing in skip bucket, thereby avoid seriously crossing dress accident.
In long-play process, because each root wire rope elastic deformation is different, produce tension imbalance.First the wire rope of overtension produces fatigue breakdown.Corresponding friction lining produces excessive wear.As can be seen here, monitoring steel wire rope tension size also keeps the uniform tension in order between rope, to extending rope service-life, alleviates liner wearing and tearing, guarantees that equipment safety operation has great significance.
In elevator system, very high to the requirement of strength of hoisting cable, coal mine lifting safety regulations regulation hoisting cable will have the safety coefficient of 10 times.If by tension pick-up directly seal in wire rope, can cause two aspects between topic, 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 hoisting load, while therefore promoting normal load, non-linear larger in the signal Hen little ， small-signal operation district of sensor output.So the installation method that sensor is directly sealed in wire rope is worthless.
For this reason, there is telescopic pressure-type sensor, its install force method be by telescopic pressure-type sensor sleeve on the hydraulic cylinder for adjusting rope screw rod of elevator system, and then screw on and adjust rope nut.Hoisting cable tension force has become the pressure to telescopic pressure transducer by restrict screw rod and nut power transfer function of tune.This installation method can accurately be monitored steel wire rope tension, does not affect again the security performance of elevator system, and both just sensor produced strength failure, still can guarantee the reliability that wire rope connects; Meanwhile, be direct measuring steel wire rope tension, can the additional measuring error of generation power transmission.
Current telescopic pressure-type sensor is socket type resistance strain type sensor, and its packing surface is larger, is difficult to guarantee good sealing.Generally, pit shaft trickle is large, humid environment.While causing foil gauge moist in pit shaft trickle is invaded sensor, sensor will destroy.In application, prove, the life-span of socket type resistance strain type sensor is very short, generally below half a year.
Utility model content
The technical matters that the utility model solves is to provide a kind of hydraulic pressure tension pick-up, to solve the problem proposing in above-mentioned background technology.
The technical matters that the utility model solves realizes by the following technical solutions:
A kind of hydraulic pressure tension pick-up, comprise sensor holder, be arranged on the checking-valve body on sensor holder and be arranged on the gauge stand on checking-valve body, described sensor holder is provided with oil har opening, piston is installed on oil har opening, in oil har opening, be filled with hydraulic medium, in checking-valve body, be provided with the inner chamber being communicated with oil har opening, checking-valve body side is provided with the dead slot being communicated with inner chamber, in dead slot, be welded with joint flange, described joint flange is connected with gauge stand by wear-resisting barrier film pad, gauge stand one end is connected with tensimeter, the gauge stand other end is provided with the die cavity of filling hydraulic medium and being communicated with tensimeter, in checking-valve body inner chamber, be provided with for cutting off or connect the thimble of passage between oil har opening and wear-resisting barrier film pad, described wear-resisting barrier film is padded in the madial wall of passage.
Further, the thimble of checking-valve body end is provided with dustproof nut.
Further, the contact area between wear-resisting barrier film pad and hydraulic medium is 10～20cm
2.
The beneficial effects of the utility model are: the utility model is put forward out the feature that suspended structure can measuring steel wire rope tension not changing, have be convenient to install change, the feature that moistureproof, reliable and the life-span is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A portion enlarged drawing in Fig. 1;
Fig. 3 is that the utility model is arranged on the use view on lifting gear;
Fig. 4 is the side view of Fig. 3.
Embodiment
In order to make of the present utility modelly to realize technological means, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Fig. 1～4, a kind of hydraulic pressure tension pick-up, comprise sensor holder 1, be arranged on the checking-valve body 4 on sensor holder 1 and be arranged on the gauge stand 10 on checking-valve body 4, described sensor holder 1 is provided with oil har opening 2, piston 3 is installed on oil har opening 2, in oil har opening 2, be filled with hydraulic medium, in checking-valve body 4, be provided with the inner chamber 5 being communicated with oil har opening 2, checking-valve body 4 sides are provided with the dead slot being communicated with inner chamber 5, in dead slot, be welded with joint flange 8, described joint flange 8 is connected with gauge stand 10 by wear-resisting barrier film pad 9, gauge stand 10 one end are connected with tensimeter 12, gauge stand 10 other ends are provided with the die cavity 11 of filling hydraulic medium and being communicated with tensimeter 12, in checking-valve body 4 inner chambers, be provided with for cutting off or connect the thimble 6 of passage between oil har opening 2 and wear-resisting barrier film pad 9, described wear-resisting barrier film pad 9 is higher than the madial wall of passage.The thimble 6 of checking-valve body 4 ends is provided with dustproof nut 7.Contact area between wear-resisting barrier film pad 9 and hydraulic medium is 10～20cm
2.
During use, the utility model 16 is arranged on to the piston rod head of the balancing cylinder 13 in Strength of Suspension Gear and hang between plate 14.The piston rod head acting force of balancing cylinder 13 acts on sensor holder 1, and in suspension, the acting force of plate 14 cushion blocks acts on the piston 3 of sensor.Wire rope 15 tension force act on the piston 3 of sensor by plate 14 in hanging, piston 3 is stressed to be acted on hydraulic medium, make wire rope 15 tension force become the pressure of hydraulic medium, the pressure of hydraulic medium acts on wear-resisting barrier film pad 9 again, then is passed on tensimeter 12 by the hydraulic medium in gauge stand 10.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a hydraulic pressure tension pick-up, comprise sensor holder, be arranged on the checking-valve body on sensor holder and be arranged on the gauge stand on checking-valve body, it is characterized in that: described sensor holder is provided with oil har opening, piston is installed on oil har opening, in oil har opening, be filled with hydraulic medium, in checking-valve body, be provided with the inner chamber being communicated with oil har opening, checking-valve body side is provided with the dead slot being communicated with inner chamber, in dead slot, be welded with joint flange, described joint flange is connected with gauge stand by wear-resisting barrier film pad, gauge stand one end is connected with tensimeter, the gauge stand other end is provided with the die cavity of filling hydraulic medium and being communicated with tensimeter, in checking-valve body inner chamber, be provided with for cutting off or connect the thimble of passage between oil har opening and wear-resisting barrier film pad, described wear-resisting barrier film is padded in the madial wall of passage.
2. a kind of hydraulic pressure tension pick-up according to claim 1, is characterized in that: the thimble of checking-valve body end is provided with dustproof nut.
3. a kind of hydraulic pressure tension pick-up according to claim 1, is characterized in that: the contact area between wear-resisting barrier film pad and hydraulic medium is 10～20cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557860.6U CN203432733U (en) | 2013-09-09 | 2013-09-09 | Hydraulic tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557860.6U CN203432733U (en) | 2013-09-09 | 2013-09-09 | Hydraulic tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432733U true CN203432733U (en) | 2014-02-12 |
Family
ID=50061765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557860.6U Expired - Fee Related CN203432733U (en) | 2013-09-09 | 2013-09-09 | Hydraulic tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432733U (en) |
-
2013
- 2013-09-09 CN CN201320557860.6U patent/CN203432733U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |