CN105293363B - Car lifting J-Horner with double self locking structure - Google Patents

Abstract

The invention discloses a kind of car lifting J-Horners with double self locking structure, body including car lifting J-Horner, what can be moved up and down along body rises the carriage mechanism of car body for frame, and it is vertically arranged in the intracorporal lead screw of machine, a work nut is equipped on the lead screw, the work nut is fixedly connected in the carriage mechanism；It further include the driving device for driving lead screw to rotate, which is characterized in that the driving device includes the turbine worm reducer on organism soleplate, and the turbine of the turbine worm reducer is located at the bottom of the lead screw, and is coaxially disposed with the lead screw；The lower end of the lead screw is fixedly connected on the output end of the turbine worm reducer.The present invention have it is rationally distributed, it is compact-sized, be conducive to improve space utilization rate；Stationarity is good, and maintenance is convenient, can be improved the safety and service life of car lifting J-Horner；Drive mechanism bearing capacity is strong, and installation accuracy is high, is conducive to the advantages that improving transmission efficiency.

Description

Car lifting J-Horner with double self locking structure

Technical field

The present invention relates to car lifting J-Horner technical fields, in particular to a kind of car lifting J-Horner with double self locking structure.

Background technique

With the fast development in city, the abnormal congestion of traditional highway communication, be difficult to meet people it is on and off duty and The requirement of trip.The advantages that carrying capacity is big due to one time for rail traffic, and operation shift is more, and collective's regulation is not in congestion, obtains To greatly developing.

In order to ensure the safety of rail traffic, after rail vehicle runs a period of time, need to the wheel in bogie to The other component at vehicle bottom is overhauled or is replaced, and when maintenance needs the vehicle for organizing into groups permutation to be lifted to certain altitude to replace The bogie and other component of vehicle bottom.

When maintenance, need by it is fixed start shipment equipment or overhead traveling crane its compartment sling it is separated from chassis, so as to vehicle into Row maintenance, and position often is moved into the vehicle movement of maintenance, this, which just needs that more fixations are arranged in maintenance shop, starts shipment equipment or day Vehicle reduces effective work usable floor area in workshop, and equipment increases, need to be by each section especially when multi-section vehicles need to overhaul Compartment carries out movement and moves position, therefore the repair time of vehicle is long, and occupancy equipment is more, low efficiency, and easily causes vehicle because of handling Collide with, outer surface is by undermining there are certain hidden danger, influences to keep the safety in production, increase the cost of overhaul, and using solid When starting shipment equipment lifting surely or falling compartment, linkage cannot be truly realized with liter or with drop, accident easily occurs.

Car lifting J-Horner is a kind of equipment for lifting car body from vehicle bottom, in lifting process, will not cause to damage to car body It is bad.But how to prevent the lifting part of car lifting J-Horner from falling becomes the key factor for influencing car lifting J-Horner safety.

Summary of the invention

In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of space benefit With rate height, stationarity is good, and maintenance is convenient, and safety is preferable, and service life is longer, transmission efficiency is higher have it is dual from The car lifting J-Horner of lock construction.

In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:

A kind of car lifting J-Horner with double self locking structure, the body including car lifting J-Horner, what can be moved up and down along body is used for Frame rises the carriage mechanism of car body, and is vertically arranged in the intracorporal lead screw of machine, and a work spiral shell is equipped on the lead screw Mother, the work nut are fixedly connected in the carriage mechanism；It further include the driving device for driving lead screw to rotate, it is special Sign is that the driving device includes the turbine worm reducer on organism soleplate, the whirlpool of the turbine worm reducer Wheel is located at the bottom of the lead screw, and is coaxially disposed with the lead screw；The lower end of the lead screw is fixedly connected on the turbine snail The output end of bar speed reducer.

As optimization, there is a splined hole being arranged concentrically on the turbine, the lower end of the lead screw is and the spline The splined shaft of hole cooperation, and be inserted into the splined shaft.

As optimization, the driving device further includes primary gear speed reducing device and the driving electricity on organism soleplate Machine, the input terminal and output end of the primary gear speed reducing device are located at the same side；The output shaft of the driving motor and described one The input terminal of grade gear reduction unit is connected, the output end of the primary gear speed reducing device and the worm screw of the turbine worm reducer It is connected.

As optimization, the driving motor is three-phase alternating-current servo motor.

In conclusion the present invention have it is rationally distributed, it is compact-sized, be conducive to improve space utilization rate；Stationarity is good, dimension Easy maintenance is protected, can be improved the safety and service life of car lifting J-Horner；Drive mechanism bearing capacity is strong, and installation accuracy is high, Be conducive to the advantages that improving transmission efficiency.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of car lifting J-Horner using the use of the new type structure.

Fig. 2 is the structural schematic diagram of walking mechanism part in Fig. 1.

Fig. 3 is the structural schematic diagram of carriage mechanism part in Fig. 1.

Fig. 4 is the structural schematic diagram of lead screw and body installation in Fig. 1.

Fig. 5 is the structural schematic diagram of positioning sleeve part in Fig. 3.

Fig. 6 is the schematic diagram of the section structure of Fig. 5.

Fig. 7 is the mounting structure schematic diagram of lead screw and work nut in Fig. 1.

Fig. 8 is the mounting structure schematic diagram of work nut and side plate in Fig. 3.

Fig. 9 is a kind of schematic diagram of car lifting J-Horner system using the use of the new type structure.

Specific embodiment

The present invention is made below with reference to a kind of car lifting J-Horner system using the use of the new type and attached drawing further detailed Explanation.

When specific implementation: as shown in Fig. 1 ~ Fig. 9, a kind of car lifting J-Horner system, including include at least four movable vehicle supportings Unwheeling unit and PLC system 9 for controlling the unwheeling unit synchronization lifting, the movable vehicle supporting include vertical The body 1 of setting is arranged in the walking mechanism 2 that can adjust 1 road clearance of body of 1 bottom of body, can move down on body 1 The dynamic carriage mechanism 4 that car body is risen for frame, and the lead screw 31 being vertically arranged in body 1 cooperate on the lead screw 31 and set It is equipped with a work nut 32, the work nut 32 is fixedly connected in the carriage mechanism 4；The upper end of the lead screw 31 can Rotation is articulated on the top plate of the body 1；Driving device 5 is provided on the bottom plate of the body 1；The driving device 5 Output end and the lead screw 31 be coaxially disposed, the lower end of the lead screw 31 is fixedly connected on the output end of driving device 5；It is described The control signal of driving device 5 is electrically connected in the PLC system 9.

In this way, use lead screw suspended structure in structure design, lead screw under any state only by downward pulling force, Without bending stress.Be conducive to improve the service life of car lifting J-Horner.The bottom that driving device is placed on car lifting J-Horner can be effective The total height of car lifting J-Horner is reduced, so that the center of gravity of car lifting J-Horner is lower, hangs and turns more safety and steady, since transmission system is at most bottom Layer, transmission system have better maintenance.

Wherein, the driving device 5 includes the turbine worm reducer 51 on 1 bottom plate of body, the turbine and worm The turbine of speed reducer 51 is located at the bottom of the lead screw 31, and is coaxially disposed with the lead screw 31；There is one on the turbine The lower end of the splined hole being arranged concentrically, the lead screw 31 is the splined shaft cooperated with the splined hole, and is inserted into the splined shaft.

In this way, car lifting J-Horner uses, screw pair is self-locking and the self-locking double self-locking function of worm gear pair, can guarantee unwheeling function It keeps self-locking for a long time in any lifting position, meets the needs of unwheeling work and safety guarantee to greatest extent.Using spline Axis is connect with splined hole can make the bearing capacity of the two strong, easy self-centering, and installation accuracy is high, be conducive to improve transmission effect Rate.

Wherein, the driving device 5 further includes primary gear speed reducing device 52 and the driving motor on 1 bottom plate of body 53, the input terminal and output end of the primary gear speed reducing device 52 are located at the same side；The output shaft of the driving motor 53 and institute The input terminal for stating primary gear speed reducing device 52 is connected, and the output end and the turbine and worm of the primary gear speed reducing device 52 slow down The worm screw of machine 51 is connected.

In this way, can be conducive to keep the overall structure of driving device more compact, be conducive to using such arragement construction Improve space utilization rate.

Wherein, a circular mounting hole is provided on the top plate of the body 1, fixing sleeve is equipped with one in the mounting hole The upper end of whole cylindrical lead screw installation set 35, the lead screw installation set 35 has outwardly projecting ring flange 351, the method Blue disk 351 is bolted on the top plate of body 1；Having three-level in the lead screw installation set 35, diameter is successively from top to bottom The stepped hole 352 to become smaller；First thrust bearing 353 is set in the hole at middle part in the stepped hole 352；The silk The upper end of thick stick 31 is disposed with the first shaft part 311 from top to bottom, limits section 312 and the second shaft part 313, first shaft part The diameter of 311 diameter and the second shaft part 313 is respectively less than the diameter of the limit section 312；Second shaft part 313 is from top to bottom Inserting cooperate in 353 inner hole of the first thrust bearing；Second thrust is fitted on first shaft part 311 Bearing 354；35 upper end of lead screw installation set is also equipped with one for compressing the end cap 355 of second thrust bearing 354.

In such manner, it is possible to make the mounting structure of lead screw simple, facilitate the installation of lead screw, is conducive to the maintenance of lead screw.

Wherein, there is the two-stage Step Shaft 356 that diameter successively becomes smaller from top to bottom outside the lead screw installation set 35, and is located at The axis body diameter of top matches with the installation bore dia on 1 top plate of body, and the axis body is enable to be sleeved on 1 top plate of body Mounting hole in；It is connected between the two-stage axis body of the Step Shaft 356 by cone transition.

In such manner, it is possible to which more convenient be installed to lead screw installation set in body top plate, assembly efficiency is improved.

Wherein, first thrust bearing 353 is thrust angular contact bearing, and second thrust bearing 354 is axial connects Contact bearing.In this way, being conducive to improve the service life of lead screw using thrust bearing.

Wherein, the carriage mechanism 4 includes bracket 41 and the prop head 42 being horizontally set in bracket 41；The bracket 41 Including two pieces of face settings and the side plate 411 being parallel to each other and for the supporting mechanism of connecting lateral plate 411；The prop head 42 is wrapped Include two side plates 421 being arranged on the inside of two side plates 411 respectively, the side plate 421 is towards the one of car lifting J-Horner working side End is connected with tray 422；Be provided in the tray 422 for detect car body close to switch 95, it is described electric close to switch 95 It is connected to the input terminal of the PLC system 9, the alarm for issuing alarm signal is connected on the output end of the PLC system 9 Device 91.

When specifically used, using close to switch can real-time detection car body whether fall in prop head, when one of prop head When not detecting car body close to switch, the car lifting J-Horner where other prop heads will be out of service, until close in the prop head Switch detects that car body is fallen in the prop head, and all car lifting J-Horners are subsynchronous again to be risen or fallen.In such manner, it is possible to realize car lifting J-Horner Synchronous working, improve the safety of system.

When it is implemented, can also be replaced using pressure sensor above-mentioned close to switch.When specifically used, when wherein one When the pressure sensor of a prop head detects that the pressure signal of car body is zero, the car lifting J-Horner where other prop heads will be out of service, Until the pressure sensor in the prop head detects the pressure of car body, all car lifting J-Horners are subsynchronous again to be risen or fallen.

Wherein, the end of the lead screw 31 is coaxially connected with one for detecting the encoder 96 of lead screw rotating cycle, institute State the input terminal that encoder 96 is electrically connected to the PLC system 9.In this way, the lead screw rotating cycle detected by encoder, lead screw Lead and transmission system reduction ratio, the practical distance risen or fallen of each car lifting J-Horner can be calculated.In this way, can be with The working condition of car lifting J-Horner is fed back in realization, is conducive to the synchronization accuracy for improving car lifting J-Horner.

Wherein, the driving motor 53 is three-phase alternating-current servo motor.Using such motor transmission system is had more Good action response, meanwhile, the closed-loop control to car lifting J-Horner may be implemented, improve the operating accuracy of car lifting J-Horner.

Wherein, there are two the close switch 95 is arranged in parallel.In this way, one of them can be prevented using Redundancy Design It fails close to switching damage, improves the reliability of system.

When it is implemented, photoelectric sensor is installed at the top of car lifting J-Horner, photoelectric sensor and driving screw synchronous rotary, Every turn of photoelectric sensor can issue fixed number of pulses, by being detected to the number of pulses that photoelectric sensor exports, It may know that the angle of driving screw rotation, and then know the height of car lifting J-Horner unwheeling.

Specific formula for calculation is Ψ/360 H=L=L m/n

L----- driving screw lead Ψ ----screw rod rotates angle

The umber of pulse that the umber of pulse n---- sensor that m---- sensor issues often transfers

L and n is constant, it is seen that the height of car lifting J-Horner unwheeling is directly proportional to the umber of pulse that photoelectric sensor issues.

Processing is compared by the umber of pulse issued to each car lifting J-Horner photoelectric sensor, so that it may know each unwheeling Whether rack height is contour, differs, and then generates control signal using this difference, and the car lifting J-Horner that unwheeling can be made high stops It only waits, height difference to be achieved resynchronizes unwheeling, the synchronization unwheeling in control range is realized, due to photoelectric transfer within requiring Every turn of sensor can export 6400 pulse signals, this useful control mode of institute can achieve quite high precision.

Wherein, a jam nut 33 is also equipped on the lead screw 31, the jam nut 33 is arranged at intervals on The lower section of the work nut 32；Being fixedly connected between the work nut 32 and jam nut 33 can be along the lead screw 31 The connection sheet 34 of axial direction compression, the work nut 32 can be under the action of connection sheet 34 around lead screw with jam nut 33 31 move synchronously；The input terminal of the PLC system 9 is connected with one and is mounted in work nut for detecting the work nut The displacement sensor 92 of distance between 32 and jam nut 33.

When implementation, since the weight of car body reaches 25 ~ 45 tons, in the course of work, the weight of car body mainly falls in work spiral shell On mother, and jam nut is not subject to pressure substantially, in this way, the abrasion loss of work nut is far longer than the abrasion loss of jam nut. Once work nut is worn, and jam nut is not worn, and work nut will be moved down relative to jam nut, even The weight of the unbearable vehicle of contact pin.In this way, connection sheet will be compressed, staff can be sentenced by the degree that connection sheet is compressed The abrasion loss of disconnected work nut out, in advance replaces work nut, prevents dangerous generation.In addition, even if work nut Completely worn out and fall, underlying jam nut can also guarantee that carriage mechanism will not fall, and ensure that frame The safety of vehicle device.

Wherein, institute's displacement sensors 92 are fixedly mounted on along the vertical direction in the work nut 32；The displacement passes The test side of sensor 92 is towards the jam nut 33；The position that institute's displacement sensors 92 are corresponded on the jam nut 33 is set It is equipped with the block 331 that can be detected by institute's displacement sensors 92, between the block 331 and displacement sensor 92 Distance is less than or equal to the distance between work nut 32 and jam nut 33.

When specifically used, work nut abrasion loss permissible value is provided in PLC system, once displacement sensor detects When the signal of block, illustrate that the abrasion loss of work nut alreadys exceed permissible value, the alarm device connecting with PLC system will be reported It is alert, it prompts staff to replace work nut, avoids dangerous generation, be conducive to the safety of raising system.

Wherein, the upper end of the connection sheet 34 is welded in the work nut 32, and the lower end of the connection sheet 34 has The strip-shaped hole that length direction is arranged along the vertical direction, the connection sheet 34 are fixed on the peace by the bolt across the strip-shaped hole On full nut 33.

In this way, fixing by the way of welding between connection sheet and work nut, connection sheet can be prevented relative to work Nut movement；Both the lower end setting slotted hole of connection sheet is conducive to adjust the distance between work nut and jam nut, make It can guarantee after being connected and fixed synchronous around guide screw movement.

Wherein, the distance between the work nut 32 and jam nut 33 are 5 ~ 10mm.In this way, reduce work nut with The distance between jam nut can reduce the impact force to fall after work nut abrasion, improve the safety of whole system.

Wherein, the connection sheet 34 work nut 32 in the radial direction be symmetrical arranged there are two.In this way, once having one Connection bolt looseness in a connection sheet, another connection sheet can also work normally, and be conducive to the safety for improving car lifting J-Horner Property.

When it is implemented, work nut uses the frame mode of steel-casting hot charging tin bronze nut.In this way, due to tin bronze Hardness it is lower than the hardness of cast steel, in this way, the abrasion loss of work nut is bigger, and silk in work nut and the lead screw course of work Thick stick will not have a too big abrasion, when maintenance, it is only necessary to replace to work nut, advantageously reduce maintenance cost.

Wherein, the work nut 32 is located among two blocks of side plates 411 and has along perpendicular to the side plate 411 The cylindrical trunnion that direction is extended to form to two sides；The position that the side plate 411 is located at the corresponding trunnion, which is provided with, to be used for The branch ear muff of the trunnion is installed, the trunnion is inserted into corresponding branch ear muff；The inner hole of the branch ear muff is along the vertical direction The strip-shaped hole of setting；The input terminal of the PLC system 9 is connected with first microswitch 93；First microswitch 93 It is mounted below the strip-shaped hole of the branch ear muff, the button of first microswitch 93 towards the strip-shaped hole and extend into this In shape hole.

When car lifting J-Horner is synchronous to be declined, once carriage mechanism is blocked on guide rail, work nut can be under the action of lead screw Continue to decline, the trunnion of work nut can also move downward, so that the first microswitch below branch ear muff is touched, with first The connected PLC system of microswitch will stop the work of the synchronous decline of car lifting J-Horner, while alarm device being made to issue alarm signal Number, it notifies staff to exclude failure, is conducive to the safety for improving the service life and system of car lifting J-Horner.

Wherein, the trunnion, which is put on, is also equipped with a pressure sensor 94, and the pressure sensor 94 is located at the item The top in shape hole, and the test side of the pressure sensor 94 is extend into downward in the strip-shaped hole；94 electricity of pressure sensor It is connected to the PLC system 9.

When car lifting J-Horner is synchronous to be risen, once carriage mechanism is blocked on guide rail, work nut can be under the action of lead screw Continue to rise, the trunnion of work nut squeezes the pressure sensor for being located at trunnion set top, to make pressure sensor The pressure signal of upper detection steeply rises, when the pressure signal of pressure sensor detection is more than the safety value of PLC system setting, PLC system will stop the synchronous work risen of car lifting J-Horner, while alarm device being made to issue alarm signal, notify staff Failure is excluded, the safety for improving the service life and system of car lifting J-Horner is conducive to.

Wherein, the guide rail 11 of the plate of two faces that are parallel to each other, the carriage mechanism are vertically arranged on the body 1 4 are located among two guide rails 11；Two blocks of side plates 411 are parallel with the guide rail 11, and the outer lateral extent of two blocks of side plates 411 Match with the inner distance of two pieces of guide rails 11；The side of the side plate 411 towards corresponding guide rail 11 is provided with several Idler wheel 412 is carried, the axis of the carrying idler wheel 412 is perpendicular to corresponding side plate 411；The carrying idler wheel 412 is along guide rail 11 Width direction be evenly arranged on the two sides of corresponding rails, and it is tangent with corresponding 11 side of guide rail.

Using such structure, when car lifting J-Horner works, pressure that guide rail is born will along the direction of plane where guide rail, In such manner, it is possible to prevent the deformation of guide rail, system lifetim is improved.Above structure is simple, is easy to make.When it is implemented, unwheeling Machine body is welded using good low-carbon alloy steel, and two liftable automotive chassis guide rails of group weldering on body, the guide rail is in a group weldering Machining is completed afterwards, it is ensured that the geometric accuracy of guide rail.

Wherein, it is respectively provided on each side plate 411 there are two idler wheel 412 is carried, is located at corresponding guide rail 11 Two sides, and it is located at another lower section for carrying idler wheel 412 close to the carrying idler wheel 412 of car lifting J-Horner working side.

Wherein, an auxiliary wheel 413 is additionally provided on each side plate 411, the auxiliary wheel 413 is located remotely from The underface of the carrying idler wheel 412 of car lifting J-Horner working side.

Rack gear 423 is horizontally installed on one of them described side plate 421；Along perpendicular to the side plate on the bracket 41 411 direction is provided with a shaft, and one and 423 meshed gears 414 of rack gear are fixed in the shaft；The shaft One end pass through bracket 41 side plate 411 be coaxially connected with a circular handle 415.

When it is implemented, unwheeling position is also different since car body model is different, it using the above structure, can be for difference Car body model be adjusted to different unwheeling positions, be conducive to improve car lifting J-Horner the scope of application.

There are several location holes 424 being placed equidistant in the horizontal direction, the side plate is corresponding on one of them described side plate 421 Side plate 411 on be located at sustained height with the location hole 424 with one threaded hole, be equipped with one calmly in the threaded hole Position mechanism, the positioning mechanism includes positioning sleeve 416 and the positioning pin being slidably disposed in positioning sleeve 416 417, described Positioning pin 417 is inserted into the location hole 424.

In this way, can fix prop head during unwheeling, prevents during unwheeling prop head mobile and car body is caused to fall Danger, be conducive to improve car lifting J-Horner system safety.

Wherein, a helical spring 418 is set in the positioning sleeve 416, the positioning sleeve 416 is far from the bracket 41 Position have one extend inwardly in a radial direction the first boss to be formed；With one along diameter in the middle part of the positioning pin 417 The second boss extended outward to form to direction；The second boss is located at the first boss close to the one of the bracket 41 Side；The helical spring 418 is mounted between first boss and second boss, the helical spring 418 in the raw when The positioning pin 417 is inserted into the location hole 424, and the positioning when in a compressed state of the helical spring 418 Pin 417 can exit the location hole 424.

Using the above structure, positioning pin can be made to keep stretching state in its natural state, is consolidated when using positioning pin Periodically, positioning pin will not surprisingly fall off and cause danger.Be conducive to the safety of raising system.

Wherein, the positioning sleeve 416 has the card slot being arranged along its length far from one end end of the bracket 41, should Card slot is penetrated through along 416 radial direction of positioning sleeve to be arranged；The one end of the positioning pin 417 far from the bracket 41 is with one along it The card column that radial direction is extended to form to two sides, the card column can slide into the card slot.When it is implemented, the length of card slot The length that positioning sleeve is stretched out when stretching out with positioning pin matches.In this way, can will determine when needing to be adjusted prop head position The card column of position pin is pulled out from card slot, and rotates an angle, makes to block falling on the body of positioning sleeve.In this way, can make to determine Position pin is retracted in positioning sleeve, convenient to be adjusted to the position of prop head.

Wherein, the outside of the positioning sleeve 416 has symmetrically arranged two to be parallel to each other plane.In this way, can be square Just positioning sleeve is clamped using spanner, is conducive to the installation of positioning sleeve.

Wherein, the walking mechanism 2 includes the hydraulic cylinder 21 for being vertically arranged in body 1 on the side wall of working side, institute It states 21 bottom of hydraulic cylinder and rear roller 22 is installed；21 bottom of hydraulic cylinder is also hinged with an entirety in inverted L-shaped pressure Bar 23, the bending part of the compression bar 23 are hinged on the body 1, the two sides of the compression bar 23 end directed downwardly in the width direction It is respectively hinged with a straight-bar 24 towards the oblique top setting of working side, the other end of the straight-bar 24 is hinged with an entirety and is in The support plate 25 of obtuse triangle, it is hinged with the bottom plate of the body 1 at the obtuse angle of the support plate 25；25 court of support plate Front wheel 26 is installed, the input terminal of the PLC system 9 is connected with to be mounted on 1 bottom plate of body and use to one jiao of working side In the second microswitch 97 whether detection 1 bottom plate of body lands.

Using the above structure, when hydraulic cylinder stretches out, rear roller is moved down relative to body, meanwhile, hydraulic cylinder passes through pressure The link mechanism of bar, straight-bar and support plate composition moves down front wheel also relative to body, so that body be made to be lifted away from ground Face.In this way, can be convenient the movement of car lifting J-Horner.But walking mechanism cannot bear pressure when body framework rises, and when frame rises, need Guarantee that body is integrally fallen to the ground.Second microswitch is installed on organism soleplate, can detecte whether body falls on down Position, when body does not fall in place, PLC system can not start car lifting J-Horner lifting, while alarm device being made to issue alarm signal Number, it reminds staff that car lifting J-Horner is restarted in body whereabouts in place, is conducive to the service life and system that improve car lifting J-Horner Safety.

Wherein, the rear roller 22 and the corresponding position of front wheel 26 are each provided with second microswitch 97. In this manner it is ensured that the bottom plate of each car lifting J-Horner integrally falls in place.

Wherein, the support plate 25 is towards being hinged with a mounting plate 27 on one jiao of working side, the mounting plate 27 Middle part and the support plate 25 are hinged, and the both ends of the mounting plate 27 are each provided with the front wheel 26.In this way, before two Idler wheel and a rear roller composition 3 points determine a plane, keep overall structure simple.

When it is implemented, the rear roller 22 is universal wheel.In this way, facilitating the turning of car lifting J-Horner in mobile car lifter.

When it is implemented, the alarm device 91 is combined aural and visual alarm.In this way, sound and light can be used to work people Member is reminded, it is ensured that can remind each staff.

A kind of unwheeling unit synchronization lifting method, includes the following steps,

A, the car lifting J-Horner system of above structure is obtained.

B, the frame raise-position that the movable vehicle supporting obtained in step a is moved to the car body risen to frame is set.

C, car body is pushed up in advance；Start the driving of driving motor 53 that the PLC system 9 controls each movable vehicle supporting Lead screw rotation, drive carriage mechanism 4 rise, and detect when the car body that frame rises when close to switch 95, stop to the close switch The driving motor 53 of 95 place movable vehicle supportings is driven, and all detects the vehicle risen to frame close to switch 95 until all Body.

D, Synchronous lifting；Start the PLC system 9 while controlling the driving motor 53 of four movable vehicle supportings with identical Speed rotation, drive four carriage mechanisms 4 are synchronous to rise；Until body framework is raised to position.

E, when declining, start the PLC system 9 while controlling the driving motor 53 of four movable vehicle supportings with identical Speed rotation drives the synchronous decline of four carriage mechanisms 4；It falls in place until by car body.

When it is implemented, above-mentioned PLC system, pressure sensor, close to switch, each portion such as microswitch and alarm device Divide component itself and mutual connection type is to belong to the mature prior art, component itself is not belonging to the application couple The prior art makes the place of creative contribution, and the place that the application makes creative contribution to the prior art is will be above-mentioned each The location fix of particular requirement is arranged in existing component, and is combined and connects, and allows to improve detection convenient for detection Precision achievees the purpose that the safety for improving car lifting J-Horner to be implemented for the control to car lifting J-Horner.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation with the present invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (4)

1. the car lifting J-Horner with double self locking structure, the body (1) including car lifting J-Horner, what can be moved up and down along body (1) is used for Frame rises the carriage mechanism (4) of car body, and the lead screw (31) being vertically arranged in body (1), cooperates on the lead screw (31) and sets It is equipped with a work nut (32), the work nut (32) is fixedly connected on the carriage mechanism (4)；It further include for driving The driving device (5) of dynamic lead screw rotation, which is characterized in that the driving device (5) includes the turbine on body (1) bottom plate Worm decelerating machine (51), the turbine of the turbine worm reducer (51) are located at the bottom of the lead screw (31), and with the silk Thick stick (31) coaxial arrangement；The lower end of the lead screw (31) is fixedly connected on the output end of the turbine worm reducer (51)；Institute Stating carriage mechanism (4) includes bracket (41) and the prop head (42) being horizontally set in bracket (41), and the bracket (41) includes Two pieces of face settings and the side plate that is parallel to each other (411) and the supporting mechanism for being used for connecting lateral plate (411)；The work nut (32) it is located at the intermediate and direction with edge perpendicular to the side plate (411) of two pieces of side plates (411) to extend to form to two sides Cylindrical trunnion；The position that the side plate (411) is located at the corresponding trunnion is provided with the trunnion for installing the trunnion Set, the trunnion are inserted into corresponding branch ear muff；The inner hole of the branch ear muff is the strip-shaped hole being arranged along the vertical direction；It is described A jam nut (33) is also equipped on lead screw (31), the jam nut (33) is arranged at intervals on the work nut (32) lower section；Being fixedly connected between the work nut (32) and jam nut (33) can be axial along the lead screw (31) The connection sheet (34) of direction compression, the work nut (32) and jam nut (33) can under the action of connection sheet (34) around Lead screw (31) moves synchronously；

It further include the PLC system (9) for controlling the carriage mechanism of car lifting J-Horner (4) lifting, the control of the driving device (5) is defeated Enter end to be electrically connected on the PLC system (9), be connected on the output end of the PLC system (9) for issuing alarm signal Alarm device (91), input terminal are connected with first microswitch (93)；First microswitch (93) is mounted on described Below the strip-shaped hole of branch ear muff, the button of first microswitch (93) towards the strip-shaped hole and is extend into the strip-shaped hole；

The prop head (42) includes two side plates (421) being arranged on the inside of two side plates (411) respectively, the side plate (421) tray (422) are connected with towards one end of car lifting J-Horner working side；It is provided in the tray (422) for detecting car body Close to switch (95), the input terminal that the PLC system (9) are electrically connected to close to switch (95), the PLC system (9) Output end on be connected with alarm device (91) for issuing alarm signal.

2. as described in claim 1 with the car lifting J-Horner of double self locking structure, which is characterized in that have one on the turbine The lower end of the splined hole being arranged concentrically, the lead screw (31) is the splined shaft cooperated with the splined hole, and is inserted into the splined shaft.

3. as described in claim 1 with the car lifting J-Horner of double self locking structure, which is characterized in that the driving device (5) is also Including primary gear speed reducing device (52) and the driving motor (53) being located on body (1) bottom plate, the primary gear speed reducing device (52) input terminal and output end is located at the same side；The output shaft and the primary gear speed reducing device of the driving motor (53) (52) input terminal is connected, the output end of the primary gear speed reducing device (52) and the worm screw of the turbine worm reducer (51) It is connected.

4. as claimed in claim 3 with the car lifting J-Horner of double self locking structure, which is characterized in that the driving motor (53) is Three-phase alternating-current servo motor.