CN105329804A - Safety alarm system for bracket mechanism of car lifting jacks - Google Patents
Safety alarm system for bracket mechanism of car lifting jacks Download PDFInfo
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- CN105329804A CN105329804A CN201510824407.0A CN201510824407A CN105329804A CN 105329804 A CN105329804 A CN 105329804A CN 201510824407 A CN201510824407 A CN 201510824407A CN 105329804 A CN105329804 A CN 105329804A
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- Prior art keywords
- horner
- car lifting
- bracket
- carriage mechanism
- car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F5/00—Mobile jacks of the garage type mounted on wheels or rollers
- B66F5/02—Mobile jacks of the garage type mounted on wheels or rollers with mechanical lifting gear
- B66F5/025—Mobile jacks of the garage type mounted on wheels or rollers with mechanical lifting gear screw-actuated
Abstract
The invention discloses a safety alarm system for a bracket mechanism of car lifting jacks. The bracket mechanism comprises a bracket. The bracket comprises two side plates and a supporting mechanism, wherein the two side plates are arranged in a direct-facing mode in parallel, and the supporting mechanism is used for being connected with the side plates. A work nut is provided with cylindrical supporting lugs. The side plates are provided with supporting lug sleeves used for installing the supporting lugs, and the inner holes of the supporting lug sleeves are strip holes formed in the vertical direction. The safety alarm system comprises a PLC system used for controlling the bracket mechanism of the car lifting jacks to ascend or descend. The output end of the PLC system is connected with an alarm device, and the input end of the PLC system is connected with a first microswitch. The first microswitch is installed below the strip holes of the supporting lug sleeves, and a button of the first microswitch faces the strip holes and extends into the strip holes. The safety alarm system has the advantages of being simple in structure, easy to realize, capable of detecting the condition that the bracket mechanism gets stuck and giving an alarm in advance, capable of preventing danger caused by damage of the bracket mechanism, capable of improving the safety of the car lifting jacks, accurate and reliable in detection and the like.
Description
Technical field
The present invention relates to car lifting J-Horner technical field, relate to a kind of car lifting J-Horner carriage mechanism sacurity alarm system especially.
Background technology
Along with the fast development in city, traditional highway communication blocks up extremely, is difficult to meet the requirement that people are on and off duty and go on a journey.Track traffic is large due to carrying capacity, runs order of classes or grades at school many, and collective's regulation and control there will not be advantages such as blocking up, obtain and greatly develop.
In order to ensure the safety of track traffic, after guideway vehicle runs a period of time, need to overhaul to the wheel in bogie truck with the miscellaneous part at the bottom of car or change, during maintenance, need the vehicle by permutation is organized into groups to be lifted to certain altitude to change bogie truck and the miscellaneous part of vehicle bottom.
During maintenance, need its compartment sling to be separated with chassis by fixedly starting shipment equipment or overhead traveling crane, to overhaul vehicle, and normal movement by the vehicle of maintenance moves position, this just needs to arrange multiple stage at repair and maintenance garage and fixedly starts shipment equipment or overhead traveling crane, effective work usable floor area in workshop is reduced, equipment increases, especially when multi-section vehicles need overhaul, each need be saved compartment to carry out moving moving position, therefore the repair time of vehicle is long, take equipment many, efficiency is low, and easily cause colliding with of vehicle because of handling, certain hidden danger is there is in outside face by undermining, impact safety in production, increase the cost of overhaul, and when use is fixedly started shipment equipment lifting or falls compartment, can not really accomplish to link with liter or with falling, easily have an accident.
Car lifting J-Horner is a kind of from the equipment of vehicle bottom by car body lifting, in lifting process, can not cause damage to car body.Car lifting J-Horner is in lifting process, and carriage mechanism frame rises car body and rises with body.But, once carriage mechanism and body block, also continue to control car lifting J-Horner and continue the generation that will cause the accident of rising.If prevented, carriage mechanism is stuck becomes problem demanding prompt solution.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical matters to be solved by this invention is: how to provide a kind of structure simple, be easy to realize, can detect that carriage mechanism is blocked and warning in advance, avoid carriage mechanism to damage and the car lifting J-Horner carriage mechanism sacurity alarm system of causing danger
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of car lifting J-Horner carriage mechanism sacurity alarm system, described car lifting J-Horner comprises the body vertically arranged, the carriage mechanism rising car body for frame that can move up and down along body, and be vertically arranged on the leading screw in body, described leading screw is equipped with a work nut; Described carriage mechanism comprises bracket and is horizontally set on the prop head in bracket, and described bracket comprises two pieces just to arranging and be parallel to each other side plate and the supporting mechanism for connecting lateral plate; Described work nut is positioned at two pieces of described side plates centres and has the columniform journal stirrup extended to form to both sides along the direction perpendicular to described side plate; The position that described side plate is positioned at corresponding described journal stirrup is provided with the ear muff for installing this journal stirrup, and described journal stirrup is inserted in a corresponding ear muff; It is characterized in that, the endoporus of described ear muff is the bar hole vertically arranged; Described carriage mechanism sacurity alarm system comprises the PLC system of the carriage mechanism lifting for controlling car lifting J-Horner, and the mouth of described PLC system is connected with the alarm device for sending alerting signal, input end is connected with first micro-switch; Described first micro-switch is arranged on below the bar hole of described ear muff, and the button of described first micro-switch is towards this bar hole and extend in this bar hole.
As optimization, described journal stirrup puts and is also provided with a pressure sensor, and described pressure sensor is positioned at the top of described bar hole, and the test side of described pressure sensor extend in this bar hole down; Described pressure sensor is electrically connected to described PLC system.
In sum, it is simple that the present invention has structure, is easy to realize, and can detect that carriage mechanism is blocked and warning in advance, avoids carriage mechanism damage and cause danger, and is conducive to the safety improving car lifting J-Horner, detects the advantage such as accurately and reliably.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation adopting the car lifting J-Horner of this use new structure.
Fig. 2 is the structural representation of traveling gear part in Fig. 1.
Fig. 3 is the structural representation of carriage mechanism part in Fig. 1.
Fig. 4 is the structural representation that in Fig. 1, leading screw and body are installed.
Fig. 5 is the structural representation of locating bush part in Fig. 3.
Fig. 6 is the cross-sectional view of Fig. 5.
Fig. 7 is the mounting structure schematic diagram of leading screw and work nut in Fig. 1.
Fig. 8 is the mounting structure schematic diagram of nut and side plate of working in Fig. 3.
Fig. 9 is a kind of schematic diagram adopting the car lifting J-Horner system of this use new structure.
Detailed description of the invention
Below in conjunction with a kind of adopt this to use novel car lifting J-Horner system and accompanying drawing the present invention is described in further detail.
During concrete enforcement: as shown in Fig. 1 ~ Fig. 9, a kind of car lifting J-Horner system, comprise the unwheeling unit that at least comprises four movable vehicle supportings and the PLC system 9 for controlling described unwheeling unit synchronization lifting, described movable vehicle supporting comprises the body 1 vertically arranged, be arranged on the traveling gear 2 that can regulate body 1 ground Clearance bottom body 1, the carriage mechanism 4 rising car body for frame that can move up and down along body 1, and the leading screw 31 be vertically arranged in body 1, described leading screw 31 is equipped with a work nut 32, described work nut 32 is fixedly connected in described carriage mechanism 4, on the rotatable top board being articulated in described body 1 in the upper end of described leading screw 31, the base plate of described body 1 is provided with actuating device 5, mouth and the described leading screw 31 of described actuating device 5 are coaxially arranged, and the lower end of described leading screw 31 is fixedly connected on the mouth of actuating device 5, the control input end of described actuating device 5 is electrically connected in described PLC system 9.
Like this, structure design adopts leading screw suspended structure, leading screw is only subject to downward pulling force under any state, without flexure stress.Be conducive to the service life of improving car lifting J-Horner.Bottom actuating device being placed on car lifting J-Horner can effectively reduce the bottom-to-top-height of car lifting J-Horner, makes the center of gravity of car lifting J-Horner lower, and hang and turn safety and steady more, because driving system is at the bottom, driving system has better maintenance.
Wherein, described actuating device 5 comprises the turbine worm reducer 51 be positioned on body 1 base plate, and the turbine of described turbine worm reducer 51 is positioned at the bottom of described leading screw 31, and coaxially arranges with described leading screw 31; Described turbine has a splined hole arranged with one heart, the lower end of described leading screw 31 is the castellated shaft coordinated with this splined hole, and inserts in this castellated shaft.
Like this, car lifting J-Horner have employed the double self-locking function of screw pair self-locking and worm gear pair self-locking, can ensure that unwheeling function what lifting position in office keeps self-locking for a long time, meet the needs of unwheeling work and safety control to greatest extent.Employing castellated shaft is connected the load-carrying capacity that can make the two with splined hole strong, easy auto-centering, and setting accuracy is high, is conducive to improving driving efficiency.
Wherein, described actuating device 5 also comprises primary gear speed reducing device 52 and is positioned at the drive motor 53 on body 1 base plate, and input end and the mouth of described primary gear speed reducing device 52 are positioned at the same side; The output shaft of described drive motor 53 is connected with the input end of described primary gear speed reducing device 52, and the mouth of described primary gear speed reducing device 52 is connected with the worm screw of described turbine worm reducer 51.
Like this, adopt such arrangement structure, can be conducive to making the integral structure of actuating device compacter, be conducive to improving space availability ratio.
Wherein, the top board of described body 1 is provided with a circular mounting hole, this mounting hole internal fixtion is arranged with a cylindrical leading screw installation sleeve 35 of entirety, the upper end of described leading screw installation sleeve 35 has flange 351 outwardly, and this flange 351 is bolted on the top board of body 1; There are in described leading screw installation sleeve 35 three grades of stepped holes 352 of diminishing successively of diameter from top to bottom; The hole being positioned at middle part in described stepped hole 352 is set with first thrust baring 353; The upper end of described leading screw 31 is disposed with the first shaft part 311 from top to bottom, spacing section 312 and the second shaft part 313, and the diameter of described first shaft part 311 and the diameter of the second shaft part 313 are all less than the diameter of described spacing section 312; The basipetal plug-in mounting of described second shaft part 313 is engaged in described first thrust baring 353 endoporus; Described first shaft part 311 coordinates second thrust baring 354 is installed; Described leading screw installation sleeve 35 upper end is also provided with one for compressing the end cap 355 of described second thrust baring 354.
Like this, the mounting structure of leading screw can be made simple, facilitate the installation of leading screw, be conducive to the maintaining of leading screw.
Wherein, there is outside described leading screw installation sleeve 35 the two-stage Step Shaft 356 that diminishes successively of diameter from top to bottom, and the mounting hole diameter be positioned on the axis body diameter of top and described body 1 top board matches, and enables this axis body be sleeved in the mounting hole of body 1 top board; Connected by cone transition between the two-stage axis body of described Step Shaft 356.
Like this, can more convenient leading screw installation sleeve be installed in body top board, improve efficiency of assembling.
Wherein, described first thrust baring 353 is thrust angular contact bearing, and described second thrust baring 354 is axial contact bearing.Like this, thrust baring is adopted to be conducive to improving the service life of leading screw.
Wherein, described carriage mechanism 4 comprises bracket 41 and is horizontally set on the prop head 42 in bracket 41; Described bracket 41 comprises two pieces just to arranging and the side plate 411 be parallel to each other and the supporting mechanism for connecting lateral plate 411; Described prop head 42 comprises two side plates 421 arranged inside two described side plates 411 respectively, and described side plate 421 is connected with tray 422 towards one end of car lifting J-Horner active side; Be provided with the proximity switch 95 for detecting car body in described tray 422, described proximity switch 95 is electrically connected to the input end of described PLC system 9, the mouth of described PLC system 9 is connected with the alarm device 91 for sending alerting signal.
During concrete use, adopt proximity switch can detect car body in real time whether to fall in prop head, when the proximity switch of one of them prop head does not detect car body, the car lifting J-Horner at other prop head places is by out of service, until the proximity switch in this prop head detects that car body is fallen in this prop head, all car lifting J-Horners again synchronously rise or decline.Like this, the synchronous working of car lifting J-Horner can be realized, improve the safety of system.
During concrete enforcement, pressure sensor can also be used to replace above-mentioned proximity switch.During concrete use, when the pressure sensor of one of them prop head detects that the pressure signal of car body is zero, the car lifting J-Horner at other prop head places is by out of service, until the pressure sensor in this prop head detects the pressure of car body, all car lifting J-Horners again synchronously rise or decline.
Wherein, the end of described leading screw 31 is coaxially connected with one for detecting the coder 96 of leading screw rotating cycle, and described coder 96 is electrically connected to the input end of described PLC system 9.Like this, the leading screw rotating cycle detected by coder, the helical pitch of leading screw and the reduction ratio of driving system, can calculate the actual distance rising or decline of each car lifting J-Horner.Like this, can realize feeding back the mode of operation of car lifting J-Horner, be conducive to the synchronization accuracy improving car lifting J-Horner.
Wherein, described drive motor 53 is three-phase alternating-current servo motor.Adopt such motor to make driving system have better action response, meanwhile, the closed loop control to car lifting J-Horner can be realized, improve the operating accuracy of car lifting J-Horner.
Wherein, described proximity switch 95 has been arranged in parallel two.Like this, adopt Redundancy Design, can prevent one of them proximity switch from damaging and losing efficacy, improve the reliability of system.
During concrete enforcement, at the top of car lifting J-Horner, opto-electronic pickup is installed, opto-electronic pickup and driving screw synchronous rotary, opto-electronic pickup often turns can send fixing number of pulses, detected by the number of pulses exported opto-electronic pickup, the angle that driving screw rotates can be known, and then know the height of car lifting J-Horner unwheeling.
Specific formula for calculation is H=L Ψ/360=Lm/n
L-----driving screw helical pitch the Ψ----screw rod anglec of rotation
The pulse count that the pulse count n----sensor that m----sensor sends often transfers
L and n is constant, and the height of visible car lifting J-Horner unwheeling is directly proportional to the pulse count that opto-electronic pickup sends.
Contrast process is carried out by the pulse count sent each car lifting J-Horner opto-electronic pickup, just can know each car lifting J-Horner unwheeling highly whether contour, differ, and then utilize this difference to produce control signal, the car lifting J-Horner that unwheeling can be made high stops waiting for, within height difference to be achieved requires, more synchronous unwheeling, realize the synchronous unwheeling in range of control, because often turning of opto-electronic pickup can export 6400 impulse singlas, this mode useful can reach quite high precision.
Wherein, described leading screw 31 is also equipped with a safety nut 33, described safety nut 33 is disposed on the below of described work nut 32; Be fixedly connected with the connecting strap 34 that can compress along described leading screw 31 axial direction between described work nut 32 and safety nut 33, described work nut 32 can be synchronized with the movement by wrapping wire thick stick 31 with safety nut 33 under the effect of connecting strap 34; The input end of described PLC system 9 is connected with one and is arranged on work nut for detecting the displacement pickup 92 of the spacing of described work nut 32 and safety nut 33.
During enforcement, the weight due to car body reaches 25 ~ 45 tons, in working process, and the weight of car body mainly drops on work nut, and safety nut does not bear pressure substantially, and like this, the abrasion loss of work nut is far longer than the abrasion loss of safety nut.Once work nut weares and teares, and safety nut does not does not wear and tear, and work nut will move down relative to safety nut, and connecting strap cannot bear the weight of car.Like this, connecting strap will be compressed, and the degree that staff can be compressed by connecting strap judges the abrasion loss of work nut, changes in advance, prevent dangerous generation to work nut.In addition, even if work nut weares and teares completely and drops, the safety nut being positioned at below also can ensure that carriage mechanism can not be fallen, and ensure that the safety of car lifting J-Horner.
Wherein, institute's displacement sensors 92 is vertically fixedly mounted on described work nut 32; The test side of institute's displacement sensors 92 is towards described safety nut 33; On described safety nut 33, the position of corresponding institute displacement sensors 92 is provided with a block 331 that can be detected by institute's displacement sensors 92, and the distance between described block 331 and displacement pickup 92 is less than or equal to the distance between work nut 32 and safety nut 33.
During concrete use, work nut abrasion loss permissible value is provided with in PLC system, the signal of block is detected once displacement pickup, the abrasion loss of explanation work nut exceedes permissible value, the alarm device be connected with PLC system will be reported to the police, prompting staff changes work nut, avoids dangerous generation, is conducive to the safety of raising system.
Wherein, the upper end of described connecting strap 34 is welded on described work nut 32, and the lower end of described connecting strap 34 has the bar hole that length direction is vertically arranged, and described connecting strap 34 is by being bolted on described safety nut 33 through this bar hole.
Like this, between connecting strap with work nut, adopt the mode of welding to fix, connecting strap can be prevented relative to the motion of work nut; The lower end of connecting strap arranges the distance that slotted hole is conducive between adjustment work nut and safety nut, can ensure synchronous around guide screw movement after making the two be connected and fixed.
Wherein, the distance between described work nut 32 and safety nut 33 is 5 ~ 10mm.Like this, reduce the distance between work nut and safety nut, the impulsive force fallen after can reducing the wearing and tearing of work nut, improves the safety of whole system.
Wherein, described connecting strap 34 work nut 32 be symmetrically arranged with two in the radial direction.Like this, once there be the tie bolt on a connecting strap to loosen, another one connecting strap also can normally work, and is conducive to the safety improving car lifting J-Horner.
During concrete enforcement, work nut adopts the frame mode of steel casting hot charging tin bronze nut.Like this, because the hardness of the hardness ratio cast steel of tin bronze is low, like this, work in nut and leading screw working process, the abrasion loss of work nut is larger, and leading screw will not have too large wearing and tearing, during maintenance, only need to change work nut, be conducive to reducing maintenance cost.
Wherein, described work nut 32 is positioned at two pieces of described side plates 411 centres and has the columniform journal stirrup extended to form to both sides along the direction perpendicular to described side plate 411; The position that described side plate 411 is positioned at corresponding described journal stirrup is provided with the ear muff for installing this journal stirrup, and described journal stirrup is inserted in a corresponding ear muff; The endoporus of described ear muff is the bar hole vertically arranged; The input end of described PLC system 9 is connected with first micro-switch 93; Described first micro-switch 93 is arranged on below the bar hole of described ear muff, and the button of described first micro-switch 93 is towards this bar hole and extend in this bar hole.
When car lifting J-Horner synchronously declines, once carriage mechanism is blocked on guide rail, work nut can continue to decline under the effect of leading screw, the journal stirrup of work nut also can move downward, thus touches the first micro-switch below an ear muff, will stop the work of the synchronous decline of car lifting J-Horner with the PLC system that the first micro-switch is connected, make alarm device send alerting signal simultaneously, notify that staff gets rid of fault, be conducive to the service life of improving car lifting J-Horner, and the safety of system.
Wherein, described journal stirrup puts and is also provided with a pressure sensor 94, and described pressure sensor 94 is positioned at the top of described bar hole, and the test side of described pressure sensor 94 extend in this bar hole down; Described pressure sensor 94 is electrically connected to described PLC system 9.
When car lifting J-Horner synchronously rises, once carriage mechanism is blocked on guide rail, work nut can continue to rise under the effect of leading screw, the journal stirrup of work nut extrudes the pressure sensor being positioned at journal stirrup cover top, thus make the pressure signal that pressure sensor detects sharply increase, when the pressure signal that pressure sensor detects exceedes the safety value of PLC system setting, PLC system will stop the work of the synchronous rising of car lifting J-Horner, make alarm device send alerting signal simultaneously, notify that staff gets rid of fault, be conducive to the service life of improving car lifting J-Horner, and the safety of system.
Wherein, described body 1 is vertically provided with the guide rail 11 of two just right tabulars that are parallel to each other, described carriage mechanism 4 is positioned in the middle of two guide rails 11; Described two blocks of side plates 411 parallel with described guide rail 11, and the inner distance of the outer lateral extent of two blocks of side plates 411 and described two pieces of guide rails 11 matches; Described side plate 411 is provided with some carrying rollers 412 towards the side of the guide rail 11 of correspondence, and the axes normal of described carrying roller 412 is in the side plate 411 of correspondence; Described carrying roller 412 is distributed on the both sides of corresponding guide rail along the Width of guide rail 11, and tangent with corresponding guide rail 11 side.
Adopt such structure, during car lifting J-Horner work, the pressure that guide rail bears along the direction of guide rail place plane, like this, will can prevent the distortion of guide rail, improves system lifetim.Said structure is simple, is easy to make.During concrete enforcement, car lifting J-Horner body adopts the low-carbon alloy steel of high-quality to be welded, and assembly welding two liftable automotive chassis guide rails on body, this guide rail completes machinework after assembly welding, guarantees the geometric accuracy of guide rail.
Wherein, each described side plate 411 is provided with two carrying rollers 412, lays respectively at the both sides of corresponding guide rail 11, and be positioned near the carrying roller 412 of car lifting J-Horner active side the below that another carries roller 412.
Wherein, each described side plate 411 is also provided with an auxiliary wheel 413, and described auxiliary wheel 413 is positioned at immediately below the carrying roller 412 away from car lifting J-Horner active side.
Side plate 421 described in one of them is horizontally installed with tooth bar 423; Described bracket 41 is provided with a rotating shaft along the direction perpendicular to described side plate 411, this rotating shaft is fixed with one and described tooth bar 423 gears in mesh 414; One end of described rotating shaft is coaxially connected with a circular handle 415 through the side plate 411 of bracket 41.
During concrete enforcement, because car body model is different, unwheeling position is also different, adopts said structure, can adjust to different unwheeling positions for different car body models, is conducive to the Applicable scope improving car lifting J-Horner.
Side plate 421 described in one of them have some equidistant knock holees 424 arranged in the horizontal direction, the side plate 411 that this side plate is corresponding has one and be positioned at the tapped bore of sustained height with described knock hole 424, a detent mechanism is installed in this tapped bore, described detent mechanism comprises locating bush 416 and is slidably arranged on the locating dowel pin 417 in locating bush 416, and described locating dowel pin 417 can be inserted in described knock hole 424.
Like this, in unwheeling process, prop head can be fixed, prevent prop head in unwheeling process from moving and the danger that causes car body to fall, be conducive to the safety improving car lifting J-Horner system.
Wherein, be set with a coil spring 418 in described locating bush 416, described locating bush 416 has first boss formed that radially extends internally away from the position of described bracket 41; There is in the middle part of described locating dowel pin 417 second boss formed that radially stretches out; Described second boss is positioned at the side of described first boss near described bracket 41; Described coil spring 418 is arranged between the first boss and the second boss, described coil spring 418 in the raw time described locating dowel pin 417 can insert in described knock hole 424, and when described coil spring 418 is in compressive state, described locating dowel pin 417 can exit described knock hole 424.
Adopt said structure, locating dowel pin can be made to keep the state of stretching out in its natural state, when using locating dowel pin to be fixed, locating dowel pin can not accidental and cause danger.Be conducive to the safety of raising system.
Wherein, described locating bush 416 has away from the end, one end of described bracket 41 draw-in groove arranged along its length, and this draw-in groove is along the through setting of locating bush 416 radial direction; Described locating dowel pin 417 has the radially card column that extends to form to both sides of direction away from one end of described bracket 41, and described card column can slip in described draw-in groove.During concrete enforcement, the length of stretching out locating bush when the length of draw-in groove and locating dowel pin stretch out matches.Like this, when needs adjust prop head position, the card column of locating dowel pin can be pulled out from draw-in groove, and rotate an angle, make to block and drop on the body of locating bush.Like this, locating dowel pin can be made to be retracted in locating bush, conveniently the position of prop head be adjusted.
Wherein, the outside of described locating bush 416 has symmetrically arranged two planes be parallel to each other.Like this, locating bush can be clamped spanner easy to use, be conducive to the installation of locating bush.
Wherein, described traveling gear 2 comprises and is vertically arranged on body 1 and deviates from hydraulic actuating cylinder 21 on the sidewall of active side, is provided with rear roller 22 bottom described hydraulic actuating cylinder 21; The depression bar 23 that an entirety is inverted L shape is also hinged with bottom described hydraulic actuating cylinder 21, the kink of described depression bar 23 is hinged on described body 1, the both sides of described depression bar 23 end broad ways down are respectively hinged with a straight-bar 24 arranged towards the oblique top of active side, the other end of described straight-bar 24 is hinged with an entirety leg-of-mutton stay bearing plate 25 in obtuse angle, the obtuse angle place of described stay bearing plate 25 and the base plate hinged of described body 1; Described stay bearing plate 25 is provided with front wheel 26 towards the Yi Jiaochu of active side, and the input end of described PLC system 9 is connected with and is arranged on body 1 base plate for detecting the second micro-switch 97 whether described body 1 base plate lands.
Adopt said structure, when hydraulic actuating cylinder stretches out, rear roller moves down relative to body, and meanwhile, the bar linkage structure that hydraulic actuating cylinder consists of depression bar, straight-bar and stay bearing plate makes front wheel also move down relative to body, thus makes body be lifted away from ground.Like this, the movement of car lifting J-Horner can be facilitated.But traveling gear can not bear pressure when body framework rises, when frame rises, need to ensure that animal economy falls to the ground.Organism soleplate is installed the second micro-switch, body can be detected whether fall to putting in place, do not fall to putting in place once body, PLC system cannot start car lifting J-Horner lifting, make alarm device send alerting signal simultaneously, remind staff to be put in place body whereabouts and restart car lifting J-Horner, be conducive to the service life of improving car lifting J-Horner, and the safety of system.
Wherein, the position of described rear roller 22 and front wheel 26 correspondence is respectively provided with described second micro-switch 97.Like this, can ensure that the base plate entirety of each car lifting J-Horner falls to putting in place.
Wherein, described stay bearing plate 25 is hinged with an adapter plate 27 on one jiao of active side, and middle part and the described stay bearing plate 25 of described adapter plate 27 are hinged, and the two ends of described adapter plate 27 are respectively provided with a described front wheel 26.Like this, determine a plane, make integral structure simple for 3 of two front wheels and rear roller composition.
During concrete enforcement, described rear roller 22 is cardan wheel.Like this, when mobile car lifter, facilitate the turning of car lifting J-Horner.
During concrete enforcement, described alarm device 91 is combined aural and visual alarm.Like this, sound and light can be used to remind staff, guarantee to remind each staff.
A kind of unwheeling unit synchronization lifting method, comprises the steps,
The car lifting J-Horner system of a, acquisition said structure.
B, the movable vehicle supporting obtained moved to treat that the frame raise-position of the car body that frame rises is put in step a.
C, car body to be pushed up in advance; Starting the drive motor 53 that described PLC system 9 controls each movable vehicle supporting drives leading screw to rotate, carriage mechanism 4 is driven to rise, when proximity switch 95 detects the car body risen until frame, stop driving the drive motor 53 of this proximity switch 95 place movable vehicle supporting, until all proximity switches 95 all detect the car body treating that frame rises.
D, Synchronous lifting; Start described PLC system 9 and control the drive motor 53 of four movable vehicle supportings with the rotation of identical speed simultaneously, drive four carriage mechanism 4 synchronously to rise; Until body framework is raised to position.
When e, decline, start described PLC system 9 and control the drive motor 53 of four movable vehicle supportings with the rotation of identical speed simultaneously, drive four carriage mechanism 4 synchronously to decline; Until car body is fallen to putting in place.
During concrete enforcement, above-mentioned PLC system, pressure sensor, proximity switch, the each several part such as micro-switch and alarm device component self and connection mode are each other all belong to ripe prior art, component self does not belong to the application makes creative contribution place to prior art, the application is above-mentioned each existing parts to be arranged on the location fix of particular requirement to the place that prior art makes creative contribution, and combined and connect, make its can so that detect, improve accuracy of detection, can be used in realizing the control to car lifting J-Horner, reach the object of the safety improving car lifting J-Horner.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. car lifting J-Horner carriage mechanism sacurity alarm system, described car lifting J-Horner comprises the body (1) vertically arranged, the carriage mechanism (4) rising car body for frame that can move up and down along body (1), and the leading screw (31) be vertically arranged in body (1), described leading screw (31) is equipped with job nut (32); Described carriage mechanism (4) comprises bracket (41) and is horizontally set on the prop head (42) in bracket (41), and described bracket (41) comprises two pieces just to arranging and the side plate that is parallel to each other (411) and the supporting mechanism for connecting lateral plate (411); Described work nut (32) is positioned at two pieces of described side plates (411) centres and has the columniform journal stirrup extended to form to both sides along the direction perpendicular to described side plate (411); The position that described side plate (411) is positioned at corresponding described journal stirrup is provided with the ear muff for installing this journal stirrup, and described journal stirrup is inserted in a corresponding ear muff; It is characterized in that, the endoporus of described ear muff is the bar hole vertically arranged; Described carriage mechanism sacurity alarm system comprises the PLC system (9) that the carriage mechanism (4) for controlling car lifting J-Horner is elevated, the mouth of described PLC system (9) is connected with the alarm device (91) for sending alerting signal, input end is connected with first micro-switch (93); Described first micro-switch (93) is arranged on below the bar hole of described ear muff, and the button of described first micro-switch (93) is towards this bar hole and extend in this bar hole.
2. car lifting J-Horner carriage mechanism sacurity alarm system as claimed in claim 1, it is characterized in that, described journal stirrup puts and is also provided with a pressure sensor (94), described pressure sensor (94) is positioned at the top of described bar hole, and the test side of described pressure sensor (94) extend in this bar hole down; Described pressure sensor (94) is electrically connected to described PLC system (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824407.0A CN105329804B (en) | 2015-11-24 | 2015-11-24 | Car lifting J-Horner carriage mechanism sacurity alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510824407.0A CN105329804B (en) | 2015-11-24 | 2015-11-24 | Car lifting J-Horner carriage mechanism sacurity alarm system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105329804A true CN105329804A (en) | 2016-02-17 |
| CN105329804B CN105329804B (en) | 2017-06-06 |
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| CN201510824407.0A Active CN105329804B (en) | 2015-11-24 | 2015-11-24 | Car lifting J-Horner carriage mechanism sacurity alarm system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB407239A (en) * | 1933-07-19 | 1934-03-15 | Walter Leuzinger | Car hoisting device |
| CN2133490Y (en) * | 1992-05-09 | 1993-05-19 | 铁道部电气化工程局电气化勘测设计研究院 | Electric supporting frame machine for locomotive overhauling |
| CN2134993Y (en) * | 1992-08-21 | 1993-06-02 | 北京市通力机械工业公司 | Vehicle lifting machine |
| CN2461818Y (en) * | 2001-01-05 | 2001-11-28 | 陈联桂 | Unwheeling machine of stock |
| CN201086718Y (en) * | 2007-08-06 | 2008-07-16 | 北京铁道工程机电技术研究所 | Movable electric car lifting jack |
| CN201437360U (en) * | 2009-08-31 | 2010-04-14 | 北京铁道工程机电技术研究所 | Anti-coasting security device used for railway rolling stock lifting jack |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN205257877U (en) * | 2015-11-24 | 2016-05-25 | 重庆红亿机械有限公司 | Car lifting jack bracket safety alarm system of mechanism |
-
2015
- 2015-11-24 CN CN201510824407.0A patent/CN105329804B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB407239A (en) * | 1933-07-19 | 1934-03-15 | Walter Leuzinger | Car hoisting device |
| CN2133490Y (en) * | 1992-05-09 | 1993-05-19 | 铁道部电气化工程局电气化勘测设计研究院 | Electric supporting frame machine for locomotive overhauling |
| CN2134993Y (en) * | 1992-08-21 | 1993-06-02 | 北京市通力机械工业公司 | Vehicle lifting machine |
| CN2461818Y (en) * | 2001-01-05 | 2001-11-28 | 陈联桂 | Unwheeling machine of stock |
| CN201086718Y (en) * | 2007-08-06 | 2008-07-16 | 北京铁道工程机电技术研究所 | Movable electric car lifting jack |
| CN201437360U (en) * | 2009-08-31 | 2010-04-14 | 北京铁道工程机电技术研究所 | Anti-coasting security device used for railway rolling stock lifting jack |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN205257877U (en) * | 2015-11-24 | 2016-05-25 | 重庆红亿机械有限公司 | Car lifting jack bracket safety alarm system of mechanism |
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| CN105329804B (en) | 2017-06-06 |
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