CN206504816U

CN206504816U - Common gantry crane container F TR lock intelligent checking systems

Info

Publication number: CN206504816U
Application number: CN201720130524.1U
Authority: CN
Inventors: 李�诚; 李建华; 蔡建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-13
Filing date: 2017-02-13
Publication date: 2017-09-19
Anticipated expiration: 2027-02-13

Abstract

The utility model discloses a kind of common gantry crane container F TR locks intelligent checking system, include and be connected to four pulling force sensors that container common door is hung on, the signal identification processor being connected with pulling force sensor；Pulling force sensor selects pillar strain transducer, include load pillar beam, two corresponding blind holes are provided with the middle part of load pillar beam, two blind holes are coaxial and along the radial symmetric of load pillar beam, resistance strain gage is provided with blind hole, load pillar beam fixed sleeves are equipped with outside the pulley for being used for fixing steel wire rope, load pillar beam and are fixedly installed a supporting plate positioned at the both sides of pulley.When container common door is sling pulling force value changes can occur for four pulling force sensors of the utility model, when the tension variations value of some pulling force sensor with the departure of another or several tension variations value exceedes given threshold, i.e. detection is learnt that container F TR locks are not normal and departed from, and realizes that Rapid Alarm is reminded.

Description

Common gantry crane container F-TR lock intelligent checking systems

Technical field

The utility model is related to container unloading lifting field, specifically a kind of common gantry crane container F-TR locks intelligence inspection Examining system.

Background technology

The F-TR locking angle parts of the settings such as F-TR type container railways special flat car, truck trailer for transport container (hereinafter referred to as " F-TR locks ") main function is firmly to be locked in container on vehicle, it is ensured that do not occurred during Container Transport It is mobile.When flat car special used for container F-TR locks and container positioning hole, (four pin of container are provided with four corner fittings, as solid Being connected to when the common gantry crane of container slings container fixed and lifting eye, referred to as " container positioning hole ") is broken down, and can be made Into in four F-TR locks of flat car special used for container some or certain it is several can not normally depart from, the common gantry crane of container can be by Container and haulage vehicle are together sling, and are caused the damage of haulage vehicle bogie or are caused haulage vehicle to occur major accident.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of common gantry crane container F-TR locks intelligent checking system, When container common door is sling pulling force value changes can occur for its four pulling force sensors, when the drawing of some pulling force sensor Power changing value and the departure of another or several tension variations value exceed given threshold, i.e. container F-TR is learnt in detection Lock is not normal to be departed from, and realizes that Rapid Alarm is reminded.

The technical solution of the utility model is：

Common gantry crane container F-TR lock intelligent checking systems, include and are connected to four drawings that container common door is hung on Force snesor, the signal identification processor being connected with pulling force sensor；Described pulling force sensor selects pillar strain transducer, Include and two corresponding blind holes are provided with the middle part of load pillar beam, load pillar beam, two blind holes are coaxial and along load The radial symmetric of pillar beam, the load pillar beam of part where two blind holes is to be provided with resistance in structural I-beam, blind hole Foil gauge, described load pillar beam fixed sleeves are equipped with the pulley for being used for fixing steel wire rope, and load pillar beam is outer and positioned at cunning The both sides of wheel are fixedly installed a supporting plate.

Described signal identification processor is connected with the controller of alarm or/and the common gantry crane of container.

Four described pulling force sensors pass sequentially through signal amplification processor, signal output module and signal identification and handled Device is connected.

The blind hole of two groups of radial symmetrics coaxial and along load pillar beam is provided with described load pillar beam, it is described The two sheet resistance foil gauges that resistance strain gage is selected in two semi-bridge type resistance strain gages, two semi-bridge type resistance strain gages It is respectively arranged in two coaxial blind holes, and two semi-bridge type resistance strain gages connection composition work in two groups of coaxial blind holes Electric bridge.

One end of described load pillar beam is provided with spindle nose, that is, forms pin shaft structure, and described spindle nose props up wherein one The outer face of supporting plate.

Locating slot is provided with the side wall of described load pillar beam, described locating slot is located remotely from another of spindle nose Baffle plate is provided with the outside of fagging, described locating slot, described baffle plate is fixed by the supporting plate on the inside of bolt and its to be connected Connect.

Advantage of the present utility model：

The utility model signal identification processor gathers the value of thrust of four pulling force sensors, when some pulling force sensor The departure of tension variations value and another or several tension variations value exceed given threshold, i.e. container is learnt in detection F-TR locks corresponding with above and below this pulling force sensor are not normal to be departed from, and realizes that Rapid Alarm is reminded or control container common door is hung It is automatically stopped lifting, it is to avoid the generation of accident.The utility model is simple in construction, using easy to operate, and Detection results are precisely, can When being prevented effectively from that F-TR locks are normal to be departed from, cause the damage of haulage vehicle bogie or cause haulage vehicle to occur major accident The problem of.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is theory diagram of the present utility model.

Fig. 3 is the front view of the utility model pulling force sensor.

Fig. 4 is the right view of the utility model pulling force sensor.

Fig. 5 is the structural representation of two semi-bridge type resistance strain gages of the utility model.

Fig. 6 is the structural representation of utility model works electric bridge.

Fig. 7 is the strain zone position and stress envelope of the utility model load pillar beam I-beam part.

Fig. 8 is that the utility model F-TR locks are normal depart from the case of four pulling force sensor value of thrust P with time T change Curve.

Fig. 9 is that the utility model 4#F-TR locks are normal depart from the case of four pulling force sensor value of thrust P with time T Change curve.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The all other embodiment obtained, belongs to the scope of the utility model protection.

See that Fig. 1, common gantry crane container F-TR lock intelligent checking system, include and be connected on the common gantry crane 06 of container Four pulling force sensors 01, the signal identification processor 02 being connected with pulling force sensor 01.

See Fig. 2, four pulling force sensors 01 pass sequentially through signal amplification processor 03, signal output module 04 to be known with signal Other processor 02 is connected, and signal identification processor 02 is connected with the controller of alarm 05 or/and the common gantry crane 06 of container.

See Fig. 3 and Fig. 4, pulling force sensor selects pillar strain transducer, includes load pillar beam 11 and resistance-strain The blind hole 12 of two groups of radial symmetrics coaxial and along load pillar beam, resistance strain gage choosing are provided with piece, load pillar beam 11 With two semi-bridge type resistance strain gages (see Fig. 5), the two sheet resistance foil gauges difference in two semi-bridge type resistance strain gages It is installed in two coaxial blind holes 12, and two semi-bridge type resistance strain gages connection composition work in two groups of coaxial blind holes 12 Electric bridge (see Fig. 6), the load pillar beam 11 of two coaxial place parts of blind hole 12 is fixed outside structural I-beam, load pillar beam It is set with outside the pulley 13 for fixing steel wire rope 07 (see Fig. 1), load pillar beam 11 and is fixed positioned at the both sides of pulley 13 Supporting plate 14 is provided with, one end of load pillar beam 11 is provided with spindle nose 15, that is, forms pin shaft structure, and spindle nose 15 props up wherein one Locating slot is provided with the outer face of supporting plate 14, the side wall of load pillar beam 11, locating slot is located remotely from the another of spindle nose 15 Baffle plate 16 is provided with the outside of supporting plate 14, locating slot, baffle plate 16 is fixed by the supporting plate 14 on the inside of bolt 17 and its to be connected Connect, so as to prevent load pillar beam 11 from rotating.

See Fig. 6, two two semi-bridge type resistance strain gages connection composition work electric bridges, pulling force sensor 01 operationally, A foil gauge R in resistance strain gage₁By positive shearing force, that R₂Also by negative shearing force, and the R in another foil gauge₃By just Shearing force, R₄By negative shearing force, when at 1,3 ends plus a voltage, then 2, the voltage output that 4 liang have a positive specific force.

Force analysis：

Shear beam sensor generally at the flex point E of strain beam plus two blind holes, be partially formed I-beam, its cut should Power can be calculated with Nikolay Zhuravsky formula：

Wherein, τ represents section shear stress, and b represents the distance between two blind holes；

Strain zone position and stress distribution such as Fig. 7 of structural I-beam such as show.

In formula (2):

Shearing Q is：

Static moment S of the shearing section to axis_yFor：

Moments of inertia J of the shearing section to axis_yFor：

Then

Wherein, τ_maxMaximum shear stress is represented, μ represents proportionality constant, and B is the width of I-beam, and H is I-shaped depth of beam, H is the diameter of blind hole, and b represents the distance between two blind holes, and E is young's modulus；

The principal stress and principal strain in 45 ° of directions are calculated, and the length change of bobbin directional pressure at 45 °, exactly pure along along beam Principal direction of stress under shearing force state, its principal stress and maximum shear stress, principal strain and maximum shear strain in following relationship：

Wherein, σ_45°For normal stress, ε_45°For forward direction strain.

Transducer sensitivity is calculated：

Wherein, K is resistance strain gage sensitivity coefficient.

The container positioning hole at four turnings of container base is locked and 4# with 1#F-TR locks, 2#F-TR locks, 3#F-TR respectively F-TR locks connection, it is ensured that the fixation of container, when container, which needs to unload, to be departed from, 1#F-TR is locked, 2#F-TR locks, 3#F-TR Lock and 4#F-TR lock with container positioning hole disengaging, the container positioning hole at four turnings of container top with it is of the present utility model Four pulling force sensor (1# pulling force sensors, 2# pulling force sensors, 3# pulling force sensors and 4# pulling force sensors) connections, work as collection When vanning common door hangs lifting container, the pulling force that each pulling force sensor is subject to can keep a value of thrust being basically unchanged (container overall weight and unbalance loading amount no longer increase substantially), now system can receive that every sensor provides it is metastable Detect signal.

See Fig. 8, when normally lifting by crane, four pulling force sensor signal output differences will not be very big, i.e.,:Four four pulling force are passed The value of thrust of sensor output is not above 2t departure；See Fig. 9, when improper lifting, four F-TR sensings on suspender Device signal output departure can be very big, i.e.,:The value of thrust of four sensors output exceed 3t departure (4# pulling force sensors with Other 3 pulling force sensor values of thrust differ by more than 3t).4# pulling force sensors are the container body pulling force of the 4th, container Value add without departing from the weight sum that is gradually pulled up of flatcar vehicle., can be with by analysis circuit using this overproof value Judge that container F-TR locks do not depart from normally immediately, alarm 05 realizes that warning function or control container common door hang 06 It is automatically stopped lifting.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. common gantry crane container F-TR locks intelligent checking system, it is characterised in that：Include and be connected to the common gantry crane of container On four pulling force sensors, the signal identification processor being connected with pulling force sensor；Described pulling force sensor selects pillar Strain transducer, includes and two corresponding blind holes is provided with the middle part of load pillar beam, load pillar beam, and two blind holes are same Axle and along the radial symmetric of load pillar beam, the load pillar beam of part where two blind holes be in structural I-beam, blind hole Resistance strain gage is provided with, described load pillar beam fixed sleeves are equipped with the pulley for being used for fixing steel wire rope, load pillar beam Outer and positioned at pulley both sides are fixedly installed a supporting plate.

2. common gantry crane container F-TR locks intelligent checking system according to claim 1, it is characterised in that：Described letter Number recognition processor is connected with the controller of alarm or/and the common gantry crane of container.

3. common gantry crane container F-TR locks intelligent checking system according to claim 1, it is characterised in that：Described four Individual pulling force sensor passes sequentially through signal amplification processor, signal output module and signal identification processor and connected.

4. common gantry crane container F-TR locks intelligent checking system according to claim 1, it is characterised in that：Described load The blind hole of two groups of radial symmetrics coaxial and along load pillar beam is provided with He Zhushiliang, described resistance strain gage selects two Two sheet resistance foil gauges in piece semi-bridge type resistance strain gage, two semi-bridge type resistance strain gages are respectively arranged in coaxial In two blind holes, and two semi-bridge type resistance strain gages connection composition work electric bridge in two groups of coaxial blind holes.

5. common gantry crane container F-TR locks intelligent checking system according to claim 1, it is characterised in that：Described load He Zhushiliang one end is provided with spindle nose, that is, forms pin shaft structure, and described spindle nose props up the outer face of a wherein supporting plate.

6. common gantry crane container F-TR locks intelligent checking system according to claim 5, it is characterised in that：Described load Locating slot is provided with He Zhushiliang side wall, described locating slot is located remotely from the outside of another supporting plate of spindle nose, described Locating slot in be provided with baffle plate, described baffle plate is fixedly connected by bolt with the supporting plate on the inside of it.