CN203651504U - Cable tension monitor and tension compensating device - Google Patents
Cable tension monitor and tension compensating device Download PDFInfo
- Publication number
- CN203651504U CN203651504U CN201320693770.XU CN201320693770U CN203651504U CN 203651504 U CN203651504 U CN 203651504U CN 201320693770 U CN201320693770 U CN 201320693770U CN 203651504 U CN203651504 U CN 203651504U
- Authority
- CN
- China
- Prior art keywords
- connecting device
- pull bar
- elastic element
- tension force
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a cable tension monitor and a tension compensating device. The cable tension monitor is characterized by comprising a first connecting device connected with one end of a cable, a second connecting device connected with the other end of the cable and an elastic element arranged between the first connecting device and the second connecting device; the changed tension between one end and the other end of the cable is transferred to the first connecting device and the second connecting device to result in the dimension change of the elastic element; and the tension state of the cable is monitored through the displacement between the first connecting device and the second connecting device generated by the dimension change of the elastic element.
Description
Technical field
The utility model relates to tension compensating system, relate in particular to a kind of monitor using while providing the tension compensating mechanism tension monitoring of tension force for the cable catenary in the supply network of electrified railway or contact wire, the service personnel of guide field carries out simple and effective monitoring effectively, guarantees the safe and reliable operation of tension compensator.
Background technology
In the contact net for power supplying of electrified railway, under any climatic conditions, built on stilts cable catenary (or hoist cable), contact wire (or cable) state in tensioning all the time, to ensure the normal work of contact net for power supplying.But due to the impact of objective environment conditions such as expanding with heat and contract with cold, cable catenary (or hoist cable), contact wire (or cable) have the variation of size under different climatic conditions.Therefore in the contact net for power supplying of prior art, used widely the tension compensator of cable catenary or contact wire, such tension compensator is fixed on the line bar of contact net for power supplying or wall according to the distance of industry standard regulation or tunnel top etc. is located, be arranged on the two ends of anchor section, and be connected in contact wire catenary, effect is the tension variation in compensation clue, makes tension force keep constant.
According to Hook's law, F=kL or Δ F=k Δ L, the coefficient of stiffiness of spring is k.As a rule, when tension compensator is made as F1 in normal working and tension force, the spring length in tension monitoring device is made as L1 so; When tension force diminishes while being made as F2, the length of spring will be extended, and the length after elongation is made as L2, and L2=L1+(F1-F2)/k.
At existing contact system circuit, use traditional tension compensating mechanism and spring compensator, often can there is the unstable accident that causes pantograph that the skew of mid point anchor occurs to be damaged of pulling force due to two ends compensator.Thereby need to often monitor the tension compensating state of traditional tension compensating mechanism.Traditional pendant quantity that formula compensator can stick together according to pendant that sticks together judges that whether two ends compensator tension force is stable, and this method relatively expends time in nor be enough directly perceived and convenient; More cannot judge pulling force compensating coefficient for traditional spring tensioner, as the inefficacy of the decay of tension force and spring, thereby cause railway security accident.
Therefore, those skilled in the art is devoted to develop a kind of novel charging system, thereby can overcome above-mentioned defect.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide the thread tension force monitor that a kind of thread tension force compensating device uses, in the time that the tension force of compensator changes, can manifest at once, help patrolling railway personnel find and take emergency measures, guarantee the safety of railway operation.
For achieving the above object, the utility model provides a kind of thread tension force monitor, comprise the first connecting device being connected with clue one end, the second connecting device being connected with the clue other end, and be arranged on the elastic element of described the first connecting device and described second in the middle of connecting device, the variation of the tension force between described clue one end and the other end is passed to described the first connecting device and the second connecting device, cause the change in size of described elastic element, the tension state of clue described in displacement monitoring between described the first connecting device and described the second connecting device producing by the change in size of described elastic element.
Further, on described the first connecting device or described the second connecting device, there is mark, in the time producing displacement between described the first connecting device and described the second connecting device, can represent the tension state of described clue.
Further, described the first connecting device is pull bar, the first end of described pull bar connects one end of described clue, the second end of described pull bar is through the second end in contact of described elastic element and described elastic element, the second connecting device comprises extension, the first end of described the second connecting device is extended with the other end that attaching parts connects clue, described extension is positioned at the second end of described the second connecting device, contact with the first end of described elastic element through elastic element, described elastic element is arranged between the end face of described extension and the second end of described pull bar, under the effect of thread tension force, the second end of described pull bar and the end face of described extension apply compressive force to spring.
Further, the second end of described pull bar is limit element, is positioned at the outside of described elastic element the second end.
Further, described extension is columniform sleeve, and described elastic element is positioned at the inside of described sleeve, and the end face of sleeve is positioned at the outside of described elastic element, spacing to the first end of elastic element.
In another embodiment, described the first connecting device is pull bar, the first end of described pull bar connects one end of clue, the second end of pull bar and the first end of elastic element are fixed, the first end of the second connecting device connects the other end of clue, and the second end of the second connecting device and the second end of described elastic element are fixed.
Further, described the second connecting device also comprises an extension, extends towards spring direction.
Further, described extension is cylindrical sleeve, and described spring is placed in one, and the end face of described sleeve is positioned at the outside of described elastic element, extends internally, and leave the space of described pull bar activity along the periphery of described sleeve.
Above-mentioned two embodiment include overload protecting mechanism, and protection elastic element is operated in elastic range.
In first embodiment, in described sleeve, there is step, stop that the limit element of pull bar continues forward.
In another embodiment, the cross-sectional plane of the second end of described pull bar is greater than described sleeve and leaves the space of described pull bar activity for.
In two embodiment, described mark is arranged on described pull bar, and under tension force normal condition, mark is in sleeve inner, and when tension force exceeds normal condition, described mark pulls out from described sleeve.
Elastic element of the present invention can be extension spring, Compress Spring, disk spring, volute spiral spring, leaf spring, hydraulic pressure spring, air pressure spring, memorial alloy or rubber etc.
In addition in the present invention, described in, be designated the annular lines different from pull bar color that mark on pull bar, or eye-catching element mounted thereto or be marked on the scale on pull bar, the different state of alert of mark tension force.
The utility model also provides a kind of tension compensating mechanism with thread tension force monitor, comprises tension compensator and the front described thread tension force monitor being connected with described tension compensator.
Further, described tension compensator is spring loaded tension compensator or fluid pressure type compensator or vapour-pressure type compensator or pendant type tension compensating mechanism.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the section-drawing of a preferred embodiment of the present utility model.
Fig. 2 is the three-dimensional cutaway view of a preferred embodiment of the present utility model.
Fig. 3 is the side schematic view of a preferred embodiment of the present utility model.
Fig. 4 is the side schematic view of another preferred embodiment of the present utility model.
Fig. 5 is the schematic diagram that the utility model is applied to spring loaded compensating device.
The specific embodiment
As Figure 1-3, the utility model provides a kind of thread tension force monitor, comprise the first connecting device 1 being connected with clue one end 41, the second connecting device 2 being connected with the clue other end 42, and be arranged on the elastic element 3 of described the first connecting device and described second in the middle of connecting device, the variation of the tension force between described clue one end and the other end is passed to described the first connecting device and the second connecting device, cause the change in size of described elastic element, the tension state of clue described in displacement monitoring between described the first connecting device and described the second connecting device producing by the change in size of described elastic element.On described the first connecting device or described the second connecting device, there is mark, in the time producing displacement between described the first connecting device and described the second connecting device, can represent, learn easily the tension state of clue, when tension force is in mal interval time, can take action and avoid dangerous generation.Wherein clue one end refers to the one end that is connected into clue, can be direct connection, also can right and wrong directly connect, but waits connection means to connect by hook; The clue other end refers to the other end that clue need to connect, as another section of clue, and metope, anchor fitting, or one end of tension compensator.
Foregoing invention can utilize the compressive force of elastic element or tensile force to reach the object of elastic element change in size.The example that reaches elastic element change in size with compressive force is as follows.
The first connecting device 1 is pull bar, the first end 11 of described pull bar connects one end 41 of clue, the second end 12 of described pull bar is through the second end in contact 32 of described elastic element and described elastic element 3, the second connecting device 2 comprises extension 22, the first end of described the second connecting device is extended with the other end 42 that attaching parts 21 connects clue, described extension 22 is positioned at the second end of described the second connecting device, contact with the first end 31 of described elastic element 3 through elastic element, described elastic element 3 is arranged between the end face of extension and the second end 12 of pull bar, under the effect of thread tension force, the second end 12 of pull bar and the end face of extension 22 apply compressive force to spring, at this moment pull bar and sleeve relative motion, thereby the tension state of clue can be monitored to.
Particularly, the second end 12 of pull bar is limit element, be positioned at the i.e. outside of the second end 32 of afterbody of elastic element, when under the state of clue at tension force stretching, limit element can compress the afterbody of elastic element to one end of clue, and simultaneously, described extension is columniform sleeve, described elastic element is positioned at the inside of described sleeve, the end face of sleeve is positioned at the outside of described elastic element, first end 31 to elastic element 3 is spacing, when under the state of clue at tension force stretching, the end face of sleeve can compress the first end of elastic element to the other end of clue, when after elastic element compression, pull bar and sleeve relative motion.Wherein, described mark is arranged on described pull bar, under tension force normal condition, mark is in sleeve inner, and when tension force exceeds normal condition, described mark pulls out from described sleeve, thereby the mark on pull bar is visible, represent that thread tension force is in the hole, need to adopt the state of clearing of taking action, avoid causing serious consequence.
In the present invention, elastic element can be anyly can under the effect of external force, produce the element of deformation, as, extension spring, Compress Spring, disk spring, volute spiral spring, leaf spring, hydraulic pressure spring, air pressure spring, memorial alloy, rubber etc.In this object lesson, use Compress Spring as an example.
Pull bar is elongated rod-shaped elements, can arrive through the central authorities of spring the second end 32 of spring, and limit element can be greater than pull bar for cross-sectional area, and can stop that spring carries out spacing element to it, thereby under the state of thread tension force, spring be compressed.Particularly, in the present embodiment, limit element is circular, is positioned at the outside of the second end of spring, together with pull bar, forms a T-shaped cross section.Circular limit element is arranged in columniform sleeve, and the end face of sleeve extends internally along the periphery of sleeve, in spring is blocked in, but leaves the space of pull bar activity, thus pull bar under the state of telescopic spring can with sleeve relative motion.
The present invention has for elastic element and has overload protecting mechanism 6, protects elastic element to be operated in elastic range interval.In this specific embodiment, in sleeve, there is step, can stop that the limit element of pull bar continues forward, thereby prevent the supercompression of elastic element, assurance elastic element is worked in elastic range.
The first connecting device 1 is that the first end of pull bar is annulus, can be fixedly connected with the snap close of clue one end.The first end of the second connecting device 2 is the annulus that afterbody stretches out, can with being fixedly connected with of the clue other end.
Describedly be designated the annular lines different from pull bar color that mark on pull bar, or eye-catching element mounted thereto or be marked on the scale on pull bar, the different state of alert of mark tension force.The relative connection mode of part in this device can be threaded, bolt connection, welding or as a whole.
The tensile force that the present invention utilizes elastic element is as follows to reach the example of elastic element change in size object.As shown in Figure 4,
The first connecting device 1 is pull bar, the first end 11 of described pull bar connects one end 41 of clue, the second end 12 of pull bar is fixing with the first end 31 of elastic element, the first end 21 of the second connecting device 2 connects the other end 42 of clue, the second end 32 of the second end of the second connecting device 2 and described elastic element 3 is fixing, under the effect of thread tension force, the second end 12 of pull bar and the two port spring of the second connecting device apply tensile force, at this moment pull bar and the second connecting device 2 relative motions, thus the tension state of clue can be monitored to.
Particularly, the second connecting device 2 also comprises an extension 22, extends towards spring direction, for comparing mark, confirms tension state.Specifically can be cylindrical sleeve, spring is placed in one, can form protection to elastic element.The end face of sleeve is positioned at the outside of described elastic element, extends internally along the periphery of sleeve, in spring is blocked in, still leaves the space of pull bar activity.In addition, on pull bar, can make mark 5, under the effect in thread tension force, pull bar pulls out from sleeve, can see mark, thereby can be easy to learn the variation of pull bar and sleeve position, can learn easily the tension state of clue, when tension force is in mal interval time, can take action and avoid dangerous generation.
The present invention has for elastic element and has overload protecting mechanism 6, protects the elastic range of elastic element in controlled scope interval.In the present example, overload protecting mechanism is presented as that the cross-sectional plane of the second end 12 of pull bar is greater than sleeve and leaves for the space of pull bar activity, thereby restriction pull bar continues to pull out, and can stop that spring continues to stretch, thus by the stretch limit of spring in elastic range.
The first connecting device 1 is that the first end of pull bar is annulus, can be fixedly connected with the snap close of clue one end.The annulus that the first end 21 of the second connecting device 2 stretches out for afterbody, can with being fixedly connected with of the clue other end.
Mark can be the annular lines different from pull bar color that mark on pull bar.Also can be eye-catching element mounted thereto.Also can indicate scale, the different state of alert of mark tension force.The relative connection mode of part in this device can be threaded, bolt connection, welding or as a whole.
The present invention can be applied on dissimilar tension compensating mechanism, by being connected between described tension compensating mechanism and clue, thereby can measure the tension state of tension compensating mechanism.Such as pendant type tension compensating mechanism, fluid pressure type compensator, vapour-pressure type compensator, and spring type tension compensating device.So the utility model also provides a kind of tension compensating mechanism with thread tension force monitor, comprises thread tension force monitor, the clue being connected with thread tension force monitor, with the tension compensator 7 being connected with tension monitoring device.
Concrete, as shown in Figure 5, take spring tension compensating device as example, mentioned strain compensator is spring tension compensator.Described spring tension compensator comprises ears wedge clamp 71 and balance plate 72, is connected with balance plate 72 by described ears wedge clamp 71 with thread tension force monitor.Spring tension compensator also comprises, fixed pin shaft 73, elastic energy storage assembly 74, compensation rope 75, brake equipment 76, involute wheel 77.Can also comprise pulley 78, elastic compensator can access clue by pulley.
Tension monitoring device of the present invention can be installed on diagram place, between ears wedge clamp 71 and balance plate 72 and the compensation rope above pulley, compensation rope connects clue by pulley again, can also be installed on pulley 78 compensation rope and spring tension compensator junction below, can also be installed between pulley 78 and clue (or shackle) junction, thereby by the tension state of compensation fathom amount tension compensator.
OCS Messenger Wire and contact wire (being clue) pass through the compensation rope connection function of spring compensator on involute sheave, in the time that ambient temperature changes, catenary and contact wire are expanded with heat and contract with cold effect size also along with variation, the now spring assembly in the rotating shaft of involute wheel drive.In the time that ambient temperature declines, when catenary and contact wire are met cold contraction, spring assembly discharges, and compensation rope starts outwards to extend the shortening amount with compensating contact net along involute sheave; In the time that ambient temperature rises, when catenary and contact wire heat expand, spring assembly starts to roll tightly, and compensation rope starts to be wound around on involute sheave.Roll tightly with spring assembly like this and discharge produced torsion and impel compensation rope shorten or extend, and then remain that catenary and contact wire are in straight line horizontality, guarantee that contact system tension force in the time of length variations remains constant.
Further, if install thread tension force monitor of the present invention, repair and maintenance personnel just can be very easily judge whether mal of compensator tension force according to the explicit identification of tension monitoring device, when find that the mark of tension monitoring device shows inconsistent with normal working time, the operation mal that just represents compensator system, need to overhaul, thereby reaches the object of avoiding dangerous, and this tension monitoring device is the technology of having no precedent, solve permanent unsolved technical matters.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical personnels are in the art complied with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in by the determined protection domain of claims.
Claims (16)
1. a thread tension force monitor, it is characterized in that, comprise the first connecting device being connected with clue one end, the second connecting device being connected with the clue other end, and be arranged on the elastic element of described the first connecting device and described second in the middle of connecting device, the variation of the tension force between described clue one end and the other end is passed to described the first connecting device and the second connecting device, cause the change in size of described elastic element, the tension state of clue described in displacement monitoring between described the first connecting device and described the second connecting device producing by the change in size of described elastic element.
2. thread tension force monitor as claimed in claim 1, it is characterized in that, on described the first connecting device or described the second connecting device, there is mark, in the time producing displacement between described the first connecting device and described the second connecting device, can represent the tension state of described clue.
3. thread tension force monitor as claimed in claim 2, it is characterized in that, described the first connecting device is pull bar, the first end of described pull bar connects one end of described clue, the second end of described pull bar is through the second end in contact of described elastic element and described elastic element, the second connecting device comprises extension, the first end of described the second connecting device is extended with the other end that attaching parts connects clue, described extension is positioned at the second end of described the second connecting device, contact with the first end of described elastic element through elastic element, described elastic element is arranged between the end face of described extension and the second end of described pull bar, under the effect of thread tension force, the second end of described pull bar and the end face of described extension apply compressive force to spring.
4. thread tension force monitor as claimed in claim 3, is characterized in that, the second end of described pull bar is limit element, is positioned at the outside of described elastic element the second end.
5. thread tension force monitor as claimed in claim 4, is characterized in that, described extension is columniform sleeve, and described elastic element is positioned at the inside of described sleeve, and the end face of sleeve is positioned at the outside of described elastic element, spacing to the first end of elastic element.
6. thread tension force monitor as claimed in claim 2, it is characterized in that, described the first connecting device is pull bar, the first end of described pull bar connects one end of clue, the second end of pull bar and the first end of elastic element are fixed, the first end of the second connecting device connects the other end of clue, and the second end of the second connecting device and the second end of described elastic element are fixed.
7. thread tension force monitor as claimed in claim 6, is characterized in that, described the second connecting device also comprises an extension, extends towards spring direction.
8. thread tension force monitor as claimed in claim 7, is characterized in that, described extension is cylindrical sleeve, described spring is placed in one, the end face of described sleeve is positioned at the outside of described elastic element, extends internally, and leave the space of described pull bar activity along the periphery of described sleeve.
9. the thread tension force monitor as described in claim 3 or 6, is characterized in that, also comprises overload protecting mechanism, and protection elastic element is operated in elastic range.
10. thread tension force monitor as claimed in claim 5, is characterized in that, in described sleeve, has step, stops that the limit element of pull bar continues forward.
11. thread tension force monitors as claimed in claim 8, is characterized in that, the cross-sectional plane of the second end of described pull bar is greater than described sleeve and leaves the space of described pull bar activity for.
12. thread tension force monitors as described in claim 5 or 8, is characterized in that, described mark is arranged on described pull bar, and under tension force normal condition, mark is in sleeve inner, and when tension force exceeds normal condition, described mark pulls out from described sleeve.
13. thread tension force monitors as claimed in claim 1, is characterized in that, described elastic element can be extension spring, Compress Spring, disk spring, volute spiral spring, leaf spring, hydraulic pressure spring, air pressure spring, memorial alloy or rubber.
14. thread tension force monitors as described in claim 5 or 8, it is characterized in that, describedly be designated the annular lines different from pull bar color that mark on pull bar, or eye-catching element mounted thereto or be marked on the scale on pull bar, the different state of alert of mark tension force.
15. 1 kinds of tension compensating mechanisms, is characterized in that, comprise tension compensator be connected with described tension compensator as right item 1,2,3,4, the thread tension force monitor described in 5,6,7,8 any one.
16. tension compensating mechanisms as claimed in claim 15, is characterized in that, described tension compensator is spring loaded tension compensator or fluid pressure type compensator or vapour-pressure type compensator or pendant type tension compensator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320693770.XU CN203651504U (en) | 2013-11-05 | 2013-11-05 | Cable tension monitor and tension compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320693770.XU CN203651504U (en) | 2013-11-05 | 2013-11-05 | Cable tension monitor and tension compensating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203651504U true CN203651504U (en) | 2014-06-18 |
Family
ID=50917934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320693770.XU Expired - Lifetime CN203651504U (en) | 2013-11-05 | 2013-11-05 | Cable tension monitor and tension compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203651504U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608655A (en) * | 2013-11-05 | 2015-05-13 | 克恩-里伯斯(太仓)有限公司 | Cable tension monitor and tension compensation device |
| CN105480118A (en) * | 2014-09-17 | 2016-04-13 | 克恩-里伯斯(太仓)有限公司 | Spring compensation device with force indicating function and force indicating system and method thereof |
| CN108168669A (en) * | 2018-02-12 | 2018-06-15 | 西南交通大学 | A kind of weighing device of cargo vehicle |
| CN109693580A (en) * | 2017-10-24 | 2019-04-30 | 扬州东方吊架有限公司 | A kind of combination type pulley compensation device |
| CN111907376A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Column spring compensation device and monitoring method thereof |
-
2013
- 2013-11-05 CN CN201320693770.XU patent/CN203651504U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608655A (en) * | 2013-11-05 | 2015-05-13 | 克恩-里伯斯(太仓)有限公司 | Cable tension monitor and tension compensation device |
| CN105480118A (en) * | 2014-09-17 | 2016-04-13 | 克恩-里伯斯(太仓)有限公司 | Spring compensation device with force indicating function and force indicating system and method thereof |
| CN109693580A (en) * | 2017-10-24 | 2019-04-30 | 扬州东方吊架有限公司 | A kind of combination type pulley compensation device |
| CN109693580B (en) * | 2017-10-24 | 2023-09-08 | 扬州东方吊架有限公司 | Combined pulley compensation device |
| CN108168669A (en) * | 2018-02-12 | 2018-06-15 | 西南交通大学 | A kind of weighing device of cargo vehicle |
| CN108168669B (en) * | 2018-02-12 | 2023-11-03 | 西南交通大学 | Weighing device for goods of truck |
| CN111907376A (en) * | 2020-06-29 | 2020-11-10 | 中铁第一勘察设计院集团有限公司 | Column spring compensation device and monitoring method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203651504U (en) | Cable tension monitor and tension compensating device | |
| CN204528987U (en) | Ratchet type safety protective device | |
| AU2016401400B2 (en) | A monitoring device and method for dynamic radial deformation and dynamic tension of wire ropes on double broken line multi-layer winding hoists for deep mines | |
| CN104608655A (en) | Cable tension monitor and tension compensation device | |
| CN107473038B (en) | Mine shaft hoist system rigid cage guide hoisting container unstability assesses device and appraisal procedure | |
| WO2010118116A3 (en) | High tension cable measurement system and assembly | |
| CN204324636U (en) | Slack rope overload detector | |
| CN201925408U (en) | Rope end connecting device | |
| CN203359735U (en) | Anti-abrasion protecting device for elevator traction wheel and elevator rope | |
| CN105896379A (en) | Hot-line work platform used for overhead transmission line | |
| CN204186057U (en) | Hydraulic jacking automatic alarm material platform | |
| CN104236779A (en) | Rope tensile force testing device | |
| CN105576555A (en) | Special tool for power-cut or live replacement of 220kV spacer | |
| CN205294524U (en) | Loose real -time supervision device of restricting absolutely of elevator based on electric current changes to be handled | |
| CN107934791B (en) | Track bridge trolley drag chain safety detection device | |
| EP2554428B1 (en) | Tensioning device for the tension of a catenary | |
| CN204941468U (en) | A kind of efficient direct-drive oil extractor | |
| CN203382394U (en) | Rotating pin measuring and weighing sensor device for container spreader | |
| CN101698461B (en) | Crane hook over-hoisting protection device | |
| EP2555365B1 (en) | Tensioning device with telescopic safety block for tension of a catenary | |
| CN207630884U (en) | Tire pressure detecting device | |
| CN201334287Y (en) | Steel wire measuring and controlling device with spoke-type load sensor | |
| CN207337601U (en) | Fire detector laying apparatu | |
| CN206735688U (en) | Gantry sampling system for coal at railway carriage sampling head elevating mechanism falling proof device | |
| CN219194251U (en) | Cable drum power supply device of bridge crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |