CN102704392A - Automatic levelling mechanism of climbing inspection vehicle - Google Patents

Automatic levelling mechanism of climbing inspection vehicle Download PDF

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Publication number
CN102704392A
CN102704392A CN2012102103658A CN201210210365A CN102704392A CN 102704392 A CN102704392 A CN 102704392A CN 2012102103658 A CN2012102103658 A CN 2012102103658A CN 201210210365 A CN201210210365 A CN 201210210365A CN 102704392 A CN102704392 A CN 102704392A
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CN
China
Prior art keywords
inspection trolley
worm
link
inspection vehicle
climbing
Prior art date
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Granted
Application number
CN2012102103658A
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Chinese (zh)
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CN102704392B (en
Inventor
吴元良
游冰
马庭林
刘俊
刘名君
刘熊
戴胜勇
张剑
艾宗良
王刚
胡步毛
高红旺
郜周东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Wuhan Bridge Industries Ltd
Wuhan Bridge Heavy Industries Group Co Ltd
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China Railway Wuhan Bridge Industries Ltd
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Priority to CN201210210365.8A priority Critical patent/CN102704392B/en
Publication of CN102704392A publication Critical patent/CN102704392A/en
Application granted granted Critical
Publication of CN102704392B publication Critical patent/CN102704392B/en
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Abstract

The invention discloses an automatic levelling mechanism of a climbing inspection vehicle and belongs to the field of bridge inspection vehicles. According to the automatic levelling mechanism, a connecting frame is connected with a worm and gear lifting machine in the center of the upper beam of the main truss of the inspection vehicle; a screw rod end of the worm and gear lifting machine is hinged with a hinge on the connecting frame; a worm speed reducing end of the worm and gear lifting machine is connected with a hinge on a rotation shaft in the centre of the upper beam of the main truss of the inspection vehicle; through the slow length change of a screw rod of the worm and gear lifting machine hinged between the connecting frame and the center of the upper beam of the main truss of the inspection vehicle and corresponding blockage of symmetric blocking pulleys, the main truss of the inspection vehicle is stably adjusted to a level position, so that the safe and stable performance of the climbing inspection vehicle is obviously improved; according to a set slope critical angle, a frame and the connecting frame can be prevented from colliding through effective control of an angle sensor and limiting stoppers, so that the inspection vehicle can climb, run and stop safely and stably within the set slope critical angle; and besides, levelling and locking aims can be fulfilled by standby manual levelling measures, so that the climbing inspection vehicle can run and operate stably and safely.

Description

Climbing inspection trolley auto-leveling mechanism
Technical field
The present invention's inspection trolley auto-leveling mechanism of climbing belongs to bridge inspection car field.
Background technology
In order to ensure bridge and traffic safety, bridge maintenance and maintenance are an extremely important and requisite job, and relevant with it supporting repair apparatus is the important leverage of maintenance and maintenance construction.Safe and reliable repair apparatus can be properly settled the maintenance issue of bridge, for the bridge construction later stage with put into effect after safe and reliable construction, maintenance means are provided.
Climbing inspection trolley working region is girder steel arch top.Domestic present stage widely used climbing inspection trolley and device out of shape be one.Climbing bridge inspection car is in orbital motion, and operating platform changes along with the variation of the gradient all the time, and the testing staff can't be in level to keep balance in car, not only be unfavorable for detecting but also can testing staff's life security be constituted a threat to.The climbing inspection trolley of minority has added a hydraulic means and has adjusted the operating platform level between device out of shape and main couple, high difficult maintenance of fault rate and cost high efficiency are low, has raised the center of gravity of main couple, and safety is low unstable.Therefore to improve climbing inspection trolley security and stability extremely urgent comprehensively.
Summary of the invention
The purpose of this invention is to provide a kind of bridge inspection car auto-leveling mechanism,, remain the problem of level in climbing operating platform in service to solve inspection trolley in the gradient scope of setting.
Technical scheme of the present invention is following:
Climbing inspection trolley auto-leveling mechanism of the present invention; Comprise the supply of inspection trolley electric power, inspection trolley main couple, base bearing mechanism, leveling fastening devices, worm and gear hoist and control system; Characteristics are that the leveling fastening devices is made up of link, clamp and retaining pulley; Link passes in inspection trolley, is connected with base bearing mechanism in the symmetrical centre of clamp and link, and the clamp level is fixed on the inspection trolley main couple; Four retaining pulleys are symmetricly set between clamp and the link affixed with clamp; The link lower end with drive wheel carrier and be connected, the leading screw end of worm and gear hoist and link free bearing hinged, its worm reducer end is connected with free bearing on the inspection trolley main couple upper beam centre rotational axis; Variation and symmetrical correspondence of keeping off pulley through being hinged on worm and gear hoist leading screw length between link, the inspection trolley main couple upper beam center stop, make the inspection trolley main couple steadily be adjusted to level.
Above-mentioned main couple is put the beams in place angular transducer is housed.
Above-mentioned main couple underbeam both sides are separately installed with angle of gradient stop.
The angle of above-mentioned link and clamp is the gradient critical angle that inspection trolley is set.
Multistage transmission handwheel is housed on the above-mentioned worm and gear hoist.
Structure innovation of the present invention; Form is simple and direct; Be connected through the worm and gear hoist between link of the present invention and the inspection trolley main couple upper beam center; The leading screw end of worm and gear hoist and the free bearing of link are hinged, and its worm reducer end is connected with free bearing on the inspection trolley main couple upper beam centre rotational axis, and the slow variation through being hinged on worm and gear hoist leading screw length between link, the inspection trolley main couple upper beam center and the correspondence of symmetry retaining pulley stop; Make the inspection trolley main couple steadily be adjusted to level, significantly improved climbing inspection trolley safety and stability performance; The present invention through effective control of angular transducer information and stop, avoids the collision of vehicle frame and link according to the gradient critical angle of setting, and has guaranteed that inspection trolley climbing with security and stability in the gradient critical angle scope of setting moves and stops.In addition, the present invention also is provided with handwheel, when meeting catastrophic failure, can reach leveling and locking through backup manual operation leveling measure, thus effectively guaranteed the present invention climb inspection trolley steadily, the safe operation operation; The present invention is not only safe and reliable, and installing/dismounting, easy to maintenance.
Description of drawings
Fig. 1 auto-leveling mechanism sketch map of the present invention
Fig. 2 auto-leveling mechanism upward slope of the present invention sketch map
Fig. 3 auto-leveling mechanism descending of the present invention sketch map
The specific embodiment
How combine accompanying drawing to further specify the present invention implements at present:
Auto-leveling mechanism of the present invention comprises that inspection trolley main couple, base bearing mechanism, leveling fastening devices, worm and gear hoist and control system form.
Referring to Fig. 1, there is axis of rotation 5 in the upper beam centre of this inspection trolley main couple H, and its side has angular transducer, is separately installed with stop 14,15 in main couple H underbeam both sides.
The leveling fastening devices is made up of link 1, clamp 12 and four retaining pulleys 8,9,10,11; Link 1 passes from inspection trolley inside; The one of which side is provided with free bearing 2; Clamp 12 levels are fixed on the inspection trolley main couple H, and the symmetrical centre of clamp 12 and link 1 is connected with base bearing mechanism 6, is the center with base bearing mechanism 6; Four retaining pulleys 8,9,10,11 are symmetricly set between clamp 12 and the link 1 to be fixed with clamp 12 welding, and link 1 lower end is connected with the driving wheel carrier with flange 13.
The leading screw end of worm and gear hoist 3 and the free bearing 2 of link 1 are hinged, and its worm reducer end is connected with free bearing 4 on the inspection trolley main couple H upper beam centre rotational axis 5, on the worm and gear hoist 3 screw mandrel ends multistage transmission handwheel 16 is housed.
The angle of link 1 and clamp 12 is these inspection trolley gradient critical angles, i.e. the critical angle of inspection trolley main couple H underbeam and link 1 collision.Each inspection trolley is set with gradient critical angle value separately.
The running of self-level(l)ing device of the present invention is following:
With reference to Fig. 2, in the process that inspection trolley goes up a slope, angular transducer 7 feeds back to control circuit to the angular rate signal of sensing; The work of control worm and gear hoist 3, worm and gear hoist 3 electric motor startings, leading screw length shortens between free bearing 2 and the free bearing 4; In the leveling process; Symmetry retaining pulley 9,10 correspondences that receive to keep off respectively in link 1 stop, have reduced the moment of torsion in the main couple leveling, thereby have made main couple steadily be adjusted to level; After the inspection trolley leveling, angular transducer 7 is given motor with signal feedback, motor braking, and the self-locking of worm and gear hoist, inspection trolley keeps horizontal stable; When the inspection trolley climbing angle of gradient reaches the critical slope angle α of this inspection trolley setting; Angular transducer 7 is promptly given stop 15 the extreme angles feedback information, and stop 15 cuts off governor circuit, and inspection trolley stops; Thereby avoid the collision of vehicle frame and link, improved the security and stability of inspection trolley.
In like manner, referring to Fig. 3, inspection trolley is when descending; Angular transducer 7 feeds back to control circuit to the angular rate signal of sensing, the work of control worm and gear hoist 3, worm and gear hoist 3 electric motor startings; Leading screw length is elongated between free bearing 2 and the free bearing 4, and in the leveling process, symmetry retaining pulley 8,11 correspondences that receive to keep off respectively in link 1 stop; Reduced the moment of torsion in the main couple leveling, thereby made main couple steadily be adjusted to level; After the inspection trolley leveling, angular transducer can be given motor signal feedback, motor braking, and the self-locking of worm and gear hoist, inspection trolley keeps horizontal stable; When the descending gradient reached critical slope angle-α, angular transducer 7 fed back to stop 14 to this extreme angles, and stop cuts off governor circuit, and inspection trolley stops, thereby avoided vehicle frame and link to collide, and had improved the security and stability of inspection trolley.
During operation; In case the burst electrical fault can be easily by human control handwheel 16, rapidly through multistage gearing in leading screw; Reach leveling and locking, automatically guaranteed the present invention climb steady, the safe operation operation of inspection trolley with the backup manual efficient in operation.

Claims (5)

  1. The climbing inspection trolley auto-leveling mechanism; Comprise the supply of inspection trolley electric power, inspection trolley main couple, base bearing mechanism, leveling fastening devices, worm and gear hoist and control system; Characteristics are that the leveling fastening devices is made up of link, clamp and retaining pulley; Link passes in inspection trolley, is connected with base bearing mechanism in the symmetrical centre of clamp and link, and the clamp level is fixed on the inspection trolley main couple; Four retaining pulleys are symmetricly set between clamp and the link affixed with clamp; The link lower end with drive wheel carrier and be connected, the leading screw end of worm and gear hoist and link free bearing hinged, its worm reducer end is connected with free bearing on the inspection trolley main couple upper beam centre rotational axis; Variation and symmetrical correspondence of keeping off pulley through being hinged on worm and gear hoist leading screw length between link, the inspection trolley main couple upper beam center stop, make the inspection trolley main couple steadily be adjusted to level.
  2. 2. the auto-leveling mechanism of climbing inspection trolley according to claim 1 is characterized in that the main couple upper beam is equipped with angular transducer.
  3. 3. the auto-leveling mechanism of climbing inspection trolley according to claim 1 is characterized in that main couple underbeam both sides are separately installed with angle of gradient stop.
  4. 4. the auto-leveling mechanism of climbing inspection trolley according to claim 1, the angle that it is characterized in that link and clamp are the gradient critical angle that inspection trolley is set.
  5. 5. the auto-leveling mechanism of climbing inspection trolley according to claim 1 is characterized in that being equipped with on the worm and gear hoist multistage transmission handwheel.
CN201210210365.8A 2012-06-25 2012-06-25 Automatic levelling mechanism of climbing inspection vehicle Active CN102704392B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210210365.8A CN102704392B (en) 2012-06-25 2012-06-25 Automatic levelling mechanism of climbing inspection vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210210365.8A CN102704392B (en) 2012-06-25 2012-06-25 Automatic levelling mechanism of climbing inspection vehicle

Publications (2)

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CN102704392A true CN102704392A (en) 2012-10-03
CN102704392B CN102704392B (en) 2014-03-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284052A (en) * 2015-05-18 2017-01-04 株洲时代新材料科技股份有限公司 A kind of bridge mechanical type speed locking device and locking means
CN108086149A (en) * 2017-12-15 2018-05-29 北京恒力铁科技术开发有限公司 A kind of bridge inspection vehicle levelling device and bridge inspection equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230061B (en) * 1960-12-23 1966-12-08 Zarges Leichtmetallbau K G Examination trolley that can be moved on the upper chords of a bridge
CN201367556Y (en) * 2008-11-27 2009-12-23 武桥重工集团股份有限公司 Hanging arch bridge inspection vehicle climbing by steel tube track
KR100991190B1 (en) * 2010-06-29 2010-11-02 (주)수연중공업 The bridge inspection and the repair method for which a circular travelling rail mobile bridge inspection car and this were used
CN101890963A (en) * 2010-07-08 2010-11-24 中铁二院工程集团有限责任公司 Variable-height continuous steel truss girder railway bridge inspection vehicle
KR101011893B1 (en) * 2008-07-01 2011-02-01 이연철 Movable carrier for repairing and maintaining of arch type structure
CN202208886U (en) * 2011-08-11 2012-05-02 武汉辉创桥梁维护工程有限公司 Climbing device for inspection vehicle for steel truss arch bridge
CN202644397U (en) * 2012-06-25 2013-01-02 武桥重工集团股份有限公司 Automatic leveling mechanism of climbing type inspection trolley

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230061B (en) * 1960-12-23 1966-12-08 Zarges Leichtmetallbau K G Examination trolley that can be moved on the upper chords of a bridge
KR101011893B1 (en) * 2008-07-01 2011-02-01 이연철 Movable carrier for repairing and maintaining of arch type structure
CN201367556Y (en) * 2008-11-27 2009-12-23 武桥重工集团股份有限公司 Hanging arch bridge inspection vehicle climbing by steel tube track
KR100991190B1 (en) * 2010-06-29 2010-11-02 (주)수연중공업 The bridge inspection and the repair method for which a circular travelling rail mobile bridge inspection car and this were used
CN101890963A (en) * 2010-07-08 2010-11-24 中铁二院工程集团有限责任公司 Variable-height continuous steel truss girder railway bridge inspection vehicle
CN202208886U (en) * 2011-08-11 2012-05-02 武汉辉创桥梁维护工程有限公司 Climbing device for inspection vehicle for steel truss arch bridge
CN202644397U (en) * 2012-06-25 2013-01-02 武桥重工集团股份有限公司 Automatic leveling mechanism of climbing type inspection trolley

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106284052A (en) * 2015-05-18 2017-01-04 株洲时代新材料科技股份有限公司 A kind of bridge mechanical type speed locking device and locking means
CN106284052B (en) * 2015-05-18 2018-02-09 株洲时代新材料科技股份有限公司 A kind of bridge mechanical speed locking device and locking means
CN108086149A (en) * 2017-12-15 2018-05-29 北京恒力铁科技术开发有限公司 A kind of bridge inspection vehicle levelling device and bridge inspection equipment

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