CN203255924U

CN203255924U - Superposed flexible lifting mechanism of car body inspection machine

Info

Publication number: CN203255924U
Application number: CN 201320283648
Authority: CN
Inventors: 李宏; 张令浩; 崔建平
Original assignee: YANTAI SANZHONG (3V) TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: YANTAI SANZHONG (3V) TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2013-05-23
Filing date: 2013-05-23
Publication date: 2013-10-30
Anticipated expiration: 2023-05-23

Abstract

The utility model discloses a superposed flexible lifting mechanism of a car body inspection machine. The superposed flexible lifting mechanism comprises a rear lower arm, a rear upper arm, a front lower arm, a front upper arm and a leveling mechanism in a parallelogram form, wherein the rear lower arm and the rear upper arm are hinged with each other; the front lower arm and the front upper arm are hinged with each other and equal in length; the distance from the hinged joint of a leveling rod and the rear upper arm to the hinged joint of the leveling rod and a platform is equal to the distance from the hinged joint of the leveling rod and the rear upper arm to the rear upper arm and the platform. The superposed flexible lifting mechanism further comprises a rear oil cylinder and a front oil cylinder which are the same in working stroke and initial setting position and final setting position of the working stroke and are pushed at the same speed during the working process, and are respectively used for driving the platform to lift by a prying arm and front and rear upper supporting arms. By adopting the superposed type supporting arm arrangement, the superposed flexible lifting mechanism can be used for realizing rigid vertical lifting at a fixed point and flexible low inclined descending.

Description

A kind of folded formula flexible lifting mechanism of body correcting machine

Technical field

The utility model relates to a kind of folded formula flexible lifting mechanism for car body correcting machine.

Described folded formula flexible lifting mechanism refers to possess parallel lifting and two kinds of functional modes of inclined lift, more than or equal to horizontal minimum altitude the time, can carry out the horizontal lifting of rigidity, less than horizontal minimum altitude the time, can carry out flexible inclined lift, and the conversion of two kinds of patterns is continuous; The pattern that the resemblance of its lifting support arm is superimposed or opens in lifting process.

Background technology

Lifting mechanism is one of radical function spare of car body correcting machine.The lifting mechanism of the car body correcting machine of prior art is parallelogram lindage or scissors mechanism.The former is by the lifting of the swing implementation platform of support arm, and its weak point is: one, usually need larger usage space, the larger use of support arm amplitude of oscillation space is larger; Two, usually need long support arm to realize larger lift, need the oil cylinder grown and larger low level election power to implement lifting simultaneously; Three, the movement with support arm in lifting process of the center of gravity of institute's loads is offset, the stability of impact carrying and the rigidity of member; Four, the service clearance ， Give operation that the support arm that moves has also occupied at the bottom of the car is made troubles.Above two, three, four described deficiencies are equally also deposited in the lifting of the opening and closing implementation platform of the latter by cutting fork.In addition, current newer flexible Lifting Technique is except the problems referred to above, and the rotating shaft of beveled end support arm and the hinged hole of platform oblong slots also affect the stability that member connects for the loose slip constraint of constraint.

The utility model content

The utility model provides a kind of folded formula flexible lifting mechanism of car body correcting machine, is intended to solve the deficiencies in the prior art part, arranges by adopting the laminating type support arm, can realize the fixed point vertical lift of rigidity; Can realize that again flexible low level tilts to descend.

The technical solution of the utility model is as follows:

A kind of folded formula flexible lifting mechanism of car body correcting machine, comprise base, platform, be connected to back arm, front arm between base and the platform, it is characterized in that: described back arm comprises mutually hinged rear underarm and rear upper arm, described rear underarm and base are hinged, and described rear upper arm and platform are hinged; Also comprise the leveling bar, described leveling bar comprises lower beam and the upper boom that the end is mutually hinged, the other end of lower beam is articulated in the arm body of rear underarm, the arm body of upper boom and the arm body of rear upper arm are mutually hinged, the other end of upper boom be hinged with platform on the parallel slide block in the left and right sides of bottom surface sliding block joint on plane; Described front arm comprises mutually hinged front underarm and front upper arm, and described front underarm and base are hinged, and described front upper arm and platform are hinged;

Hinged center-point between rear underarm and the rear upper arm to the hinged center-point between distance, rear underarm and the rear upper arm of the hinged center-point between rear upper arm and the platform to rear underarm with base between distance, front underarm and the front upper arm of hinged center-point between hinged center-point to the hinged center-point between the distance of the hinged center-point between front upper arm and the platform and front underarm and the front upper arm extremely four distances of distance of the hinged center-point between front underarm and the base equate; Hinged center-point between the arm body that hinged center-point between the arm body of upper boom and the arm body of rear upper arm to the distance of the hinged center-point between rear upper arm and the platform equals upper boom and the arm body of rear upper arm is to the distance of the hinged center-point between the parallel slide block with the left and right sides of upper boom; Hinged center-point between the arm body of upper boom and the arm body of rear upper arm to the distance of the hinged center-point between rear underarm and the rear upper arm equals hinged center-point between lower beam and the rear underarm arm body to the distance of the hinged center-point between lower beam and the upper boom; Hinged center-point between the arm body of upper boom and the arm body of rear upper arm to the distance of the hinged center-point between lower beam and the upper boom equals hinged center-point between lower beam and the rear underarm arm body to the distance of the hinged center-point between rear underarm and the rear upper arm;

Comprise that also the upper end is provided with rear sled arm hinge cover, arm body and is provided with the rotating shaft of rear sled arm and lower end and rear sled arm and the upper end of rear roller are housed are provided with front sled arm hinge cover, the arm body is provided with the front sled arm that front wheel is equipped with in the rotating shaft of front sled arm and lower end; The rotating shaft of described rear sled arm is hinged on it the arm of rear upper arm, and the rotating shaft of described front sled arm is hinged on it the arm of front upper arm; The initial desired location that also comprises forced stroke, forced stroke and end of a period desired location be identical and rear oil cylinder and front oil cylinder synchronized propelling when work all; Described rear oil cylinder is articulated in the arm body of rear underarm by oil cylinder lower rotary shaft thereafter, and is connected in the described rear sled arm hinge cover by rotating shaft on the oil cylinder thereafter; Described front oil cylinder is articulated in the arm body of front underarm by its front oil cylinder lower rotary shaft and is connected in the described front sled arm hinge cover by rotating shaft on its front oil cylinder.

Also comprise and be fixedly arranged on the rear sled arm baffle plate on the rear upper arm and be fixedly arranged on front sled arm baffle plate on the front upper arm.

Also comprise the position limiting pile that is fixedly arranged on the base and is used for locking the horizontal extreme lower position of described platform.

Comprise that also this first photoelectric switch is installed on the described platform and is positioned at the place ahead of the parallel slide block in the described left and right sides for the first photoelectric switch of the horizontal extreme lower position of Identification platform locking.

Also comprise and be installed on the described platform and be positioned at the high-order block that parallel slide block rear, the described left and right sides be used for to limit platform rising maximum height; Also comprise the second photoelectric switch for the horizontal extreme higher position of Identification platform; Described the second photoelectric switch is installed in the rear end anterior position that described high-order block is inboard, the opto-electronic pickup head is positioned at high-order block.

Described front oil cylinder is a kind of double-acting cylinder, and the following cylinder inner chamber in its piston bottom surface is made as main oil pocket, and the above cylinder inner chamber of its piston-top surface is made as secondary oil pocket; Be provided with the main chamber hydraulic fluid port with described main oil pocket UNICOM in the bottom of described front oil cylinder; Also near the hydraulic fluid port of main chamber, be provided with the secondary chamber hydraulic fluid port through oil pipe and described secondary oil pocket top UNICOM; Described rear oil cylinder is a kind of single-acting cylinder, and the active area of its oil pocket equates with the oil pocket active area of secondary oil pocket; Described rear oil cylinder also comprises the fluid threeway, and described fluid threeway is installed on the oil pocket bottom outlet of rear oil cylinder, and one of them normal open branch is by connected pipes and described secondary chamber hydraulic fluid port UNICOM.

Also comprise the ratchet fender guard that is installed on the oil cylinder; Described ratchet fender guard comprises pawl base and the ratchet that is all the tube seat structure, and the two tail end is mutually hinged; Described pawl base bottom land contains and is fixed on the lower abdomen of oil cylinder, and its head end is concordant with the head of oil cylinder; The groove top of described ratchet is contained the upper abdomen of oil cylinder and is straddled the push rod top of oil cylinder by the semicircle orifice that arranges on its head end claw-plate; Described ratchet fender guard also comprises and is installed in the pawl base and the ratchet bar that axially is consistent of trend and oil cylinder; Described ratchet bar is comprised of left and right sides tooth bar, an end of left and right tooth band fraising respectively with the oil cylinder of oil cylinder on rotating shaft hinged, and be installed in respectively in the left and right sides neutral gear between pawl base tube seat inboard and the oil cylinder; Described ratchet fender guard also comprises cylinder, and described cylinder is installed in the tail end of described pawl base, and its ball head of pushing rod contacts with the bending riser that the ratchet tail end arranges, and is used for promoting ratchet to remove engagement; Described ratchet fender guard comprises that also an end is fixed on the pawl base, and the limit spring that the other end is connected with ratchet is used for preventing that ratchet from dislocating when flicking.

Also comprise the rear roller supporting plate that is fixedly arranged on the rear underarm and be installed in bottom surface, front underarm rear end and be positioned at the front limit journal stirrup of the both sides of front wheel supporting plate; The bottom surface of described front limit journal stirrup is cambered surface; Described front limit journal stirrup also is provided with the lockhole for packing.

Also comprise the rear roller supporting plate that is fixedly arranged on rear underarm and be installed in described rear underarm front end bottom surface and be positioned at the rear spacing journal stirrup of the left and right sides of rear roller supporting plate; Also comprise on the base plate that is fixed on described base and be provided with front packing jam plate and the rear packing jam plate of lockhole, when platform is in horizontal minimum altitude, they lay respectively at the below of front limit journal stirrup and rear spacing journal stirrup, its lockhole respectively with front limit journal stirrup and rear spacing journal stirrup on lockhole corresponding one by one.

Good effect of the present utility model is:

The first, the utility model is realized parallel lifting in parallel operating mode by the synchronous opening and closing of front and rear support arm and the synchronization constrain of leveling bar, tilt to descend by the superimposed realization of front arm in low level inclination operating mode, and support arm is to adopt close-fitting hinged connection, thereby makes mode of operation more reliable and stable.

The second, the utility model is the fixed point vertical lift at the hinged point of parallel operating mode lifting support arm, has not only reduced usage space, simultaneously but also increased service clearance at the bottom of the car than prior art; Simultaneously also solved the centre-of gravity shift problem of loads in the lifting process, made the load stable equilibrium of member.

Three, the utility model support arm of need not to grow can be realized larger lift, and the oil cylinder that need not to grow and larger low level election power are implemented lifting; Therefore realize easily the required larger operating altitude of repair operation, the symmetrical support arm of having an effect is arranged the rigidity of member and application of force effect is improved simultaneously.

Four, the utility model has adopted the ratchet fender guard with the oil cylinder direct correlation, is of value to the genlocing of safety device, and fender guard is also because simplifying by the support of oil cylinder self.

Description of drawings

Fig. 1 is the utility model when being in the structural representation under the parallel jacking condition, parallel extreme lower position, demonstration be that platform is in horizontal maximum height state.Control setup 9 has indicated position, two places among the figure, first installation site in kind, and it two is deploying portion of show internal structure.The first photoelectric switch 17 and the second photoelectric switch 21 have also indicated position, two places among the figure, first installation site in kind, and it two is the positions that show annexation between itself and other parts.

Fig. 2 be parts back arm of the present utility model, front arm, leveling rod unit structure and with the assembly relation scheme drawing of base, platform.

Fig. 3 is the structural representation of the utility model when being in parallel extreme lower position.

Fig. 4 is the structural representation of the utility model when being in the inclination extreme lower position.

Fig. 5 is front cylinder structure scheme drawing of the present utility model.

Fig. 6 is the structural representation of rear ratchet fender guard of the present utility model,

Fig. 7 is the cutaway view of Fig. 6.

Fig. 8 is the structural representation of front ratchet fender guard of the present utility model, and ratchet is for flicking state among the figure.

Fig. 9 is the cutaway view of Fig. 8.

The specific embodiment

Below by a working cycle enforcement of the present utility model is further specified.

Such as Fig. 1, the utility model comprises base 1, and platform 16 is connected in back arm 5, front arm 10 between base 1 and the platform 16, and is used for the lifting of control platform 16 and the control setup 9 of tilting action.

Be respectively arranged with the first hinged-support A and the second hinged-support E that is positioned at first hinged-support A the place ahead on the described base 1; Be respectively equipped with up and down one to one the 3rd hinged-support N and the 4th hinged-support G with described the first hinged-support A and the second hinged-support E on the panel bottom surface of described platform 16.

Such as Fig. 2, described back arm 5 comprises rear underarm 5-1 and rear upper arm 5-2, also comprises the back arm hinge C that is connected in rear underarm 5-1 and rear upper arm 5-2 front end; The lower end of described rear underarm 5-1 is provided with rear lower hinging supporting shaft; The upper end of described rear upper arm 5-2 is provided with rear upper hinging supporting shaft; The 3rd hinged-support N that described back arm 5 is hinged with the first hinged-support A of base 1 by the rear lower hinging supporting shaft of described rear underarm 5-1, also pass through the rear upper hinging supporting shaft of described rear upper arm 5-2 and platform 16 is hinged; Described front arm 10 comprises front underarm 10-1 and front upper arm 10-2, also comprises the front arm hinge D that is connected in front underarm 10-1 and front upper arm 10-2 rear end; The lower end of described front underarm 10-1 is provided with front lower hinging supporting shaft; The upper end of described front upper arm 10-2 is provided with front upper hinging supporting shaft; The 4th hinged-support G that described front arm 10 is hinged with the second hinged-support E of base 1 by the front lower hinging supporting shaft of described front underarm 10-1, also pass through the front upper hinging supporting shaft of described front upper arm 10-2 and platform 16 is hinged.

Still such as Fig. 2, the utility model also comprises the rear upper axis L that is arranged on the described back arm 5, is positioned at the rear lower axis B in rear underarm 5-1 stage casing and is positioned at rear upper arm 5-2 stage casing; Also comprise leveling bar 4; Described leveling bar 4 comprises lower beam 4-1 and upper boom 4-2, also comprises the leveling bar hinge P that is connected in lower beam 4-1 and upper boom 4-2 rear end; The lower end of described lower beam 4-1 is provided with the hinged cover of lower beam; The slide block hinge K that connects about the stage casing of described upper boom 4-2 is provided with the hinged cover of upper boom, upper end and is provided with; Described leveling bar 4 is hinged with the rear lower axis B of described rear underarm 5-1 by the hinged cover of lower beam of described lower beam 4-1, and the rear upper axis L that also passes through the hinged cover of upper boom of described upper boom 4-2 and described rear upper arm 5-2 is hinged; The slide block hinge K left and right sides be separately installed with platform 16 on the parallel slide block 19 in the left and right sides of bottom surface moving contact on plane.

Still such as Fig. 2, described back arm 5, front arm 10 and leveling bar 4 have following feature: in same vertical guide, described back arm hinge C equates with the width between centers of the 4th hinged-support G with width between centers and the front arm hinge D of the second hinged-support E with width between centers, the front arm hinge D of the 3rd hinged-support N with width between centers, the back arm hinge C of the first hinged-support A.The width between centers of described leveling bar hinge P and rear lower axis B equals the width between centers of rear upper axis L and back arm hinge C; The width between centers of leveling bar hinge P and rear upper axis L equals the width between centers of rear lower axis B and back arm hinge C; The width between centers of slide block hinge K and rear upper axis L equals the width between centers of the 3rd hinged-support N and rear upper axis L.The line of centers that said structure has guaranteed the first hinged-support A and the 3rd hinged-support N is always perpendicular to the panel of platform 16.

Such as Fig. 3, the utility model also comprises the rear upper hinge cover J that is arranged on the described back arm 5, is positioned near the certain distance in rear upper arm 5-2 back arm hinge C rear end; Also comprise the front upper hinge cover H that is arranged on the described front arm 10, is positioned near the certain distance of front upper arm 10-2 front arm hinge D front end; Also comprise rear sled arm 7 and front sled arm 11; The upper end of described rear sled arm 7 is provided with that rear sled arm hinge cover T, middle hypomere are provided with the rotating shaft of rear sled arm, rear roller 7-1 is equipped with in the lower end, and it is installed on the rear upper hinge cover J by the rotating shaft of described rear sled arm; The upper end of described front sled arm 11 is provided with front sled arm hinge cover R, and middle hypomere is provided with the rotating shaft of front sled arm, and front wheel 11-1 is equipped with in the lower end, and it is installed on the front upper hinge cover H by the rotating shaft of described front sled arm.

Still such as Fig. 3, the utility model also comprises and is fixedly arranged on the rear roller supporting plate 5-3 on the rear underarm 5-1 and is fixedly arranged on rear sled arm baffle plate 5-4 on the rear upper arm 5-2; Also comprise and be fixedly arranged on the front wheel supporting plate 10-3 on the front underarm 10-1 and be fixedly arranged on front sled arm baffle plate 10-4 on the front upper arm 10-2; Described rear sled arm 7 and front sled arm 11 have following feature: the place ahead, upper end of described rear sled arm 7 and the rear, upper end of described front sled arm 11 are respectively with an inclined-plane, at the platform parastate, the inclined-plane in the place ahead, described rear sled arm 7 upper end and the aft end face of rear sled arm baffle plate 5-4 are fitted; The inclined-plane at rear, described front sled arm 11 upper end and the front end face of front sled arm baffle plate 10-4 are fitted; The horizontal extreme lower position of described platform 16 is to determine like this: at this moment, the inclined-plane in the place ahead, described rear sled arm 7 upper end and the aft end face of rear sled arm baffle plate 5-4 are about to throw off and fit, and rear roller 7-1 just contacts rear roller supporting plate 5-3; Simultaneously, the inclined-plane at rear, described front sled arm 11 upper end and the front end face of front sled arm baffle plate 10-4 are about to throw off and fit, and front wheel 11-1 just contacts front wheel supporting plate 10-3; At the platform parastate, the shape mirror image of described rear sled arm 7 and front sled arm 11 is symmetrical, and their installation site is then symmetrical about the front and back symmetric line mirror image of the first hinged-support A of base 1 and the second hinged-support E.

Still such as Fig. 3, the utility model also comprise be fixedly arranged on the described base 1, end face is positioned at directly over the first hinged-support A, is used for locking the position limiting pile 1-1 of described platform 16 horizontal extreme lower positions; When platform 16 is in described horizontal extreme lower position state, roughly fit in the bottom surface of the end face of described position limiting pile 1-1 and platform 16, and the rear upper arm 5-2 of back arm 5 and the minimum opening angle of rear underarm 5-1 are locked.During Practical manufacturing, the end face of described position limiting pile 1-1 is a cambered surface, and its cambered surface radius equals the vertical distance of the first hinged-support A and platform 16 bottom surfaces.

Such as Fig. 1, Fig. 3, the utility model also comprises the first photoelectric switch 17, and described the first photoelectric switch 17 is a kind of electric normal open switch that get, and is used for the described horizontal extreme lower position of Identification platform 16 lockings and sends the instruction that stops the parallel decline of platform; Described the first photoelectric switch 17 is installed in the panel bottom surface of described platform 16, is positioned at the place ahead of the parallel slide block 19 in the described left and right sides; When described platform 16 arrived at horizontal extreme lower position, its opto-electronic pickup head approached and stopcock with the front end of the parallel slide block 19 in the left and right sides of described leveling bar 4.

Still such as Fig. 3, the utility model also comprises the rear cylinder hinged-support S that is fixedly arranged on described rear underarm 5-1 rear end; Also comprise the front cylinder hinged-support F that is fixedly arranged on described front underarm 10-1 front end; Comprise also that forced stroke equates, the initial desired location of forced stroke and end of a period desired location all identical and rear oil cylinder 2 and front oil cylinder 14 synchronized propelling when work, it is upper and be connected among the described rear sled arm hinge cover T by rotating shaft on the rear oil cylinder that described rear oil cylinder 2 is connected in described rear cylinder hinged-support S by rear oil cylinder lower rotary shaft; Described front oil cylinder 14 is connected in described front cylinder hinged-support F upward by front oil cylinder lower rotary shaft and is connected among the front sled arm hinge cover R by rotating shaft on the front oil cylinder.

Below for satisfying a kind of embodiment to

front oil cylinder

14 and 2 requirements of rear oil cylinder.Such as Fig. 4, Fig. 5, described front oil cylinder 14 is a kind of double-acting cylinders, and the following cylinder inner chamber in its piston bottom surface is made as main oil pocket 14-3, and the above cylinder inner chamber of its piston-top surface is made as secondary oil pocket 14-4; Be provided with the main chamber hydraulic fluid port 14-1 with described main oil pocket 14-3 UNICOM in the bottom of described front oil cylinder 14; Also near main chamber hydraulic fluid port 14-1, be provided with the secondary chamber hydraulic fluid port 14-2 through oil pipe and described secondary oil pocket 14-4 top UNICOM.Described rear oil cylinder 2 is a kind of single-acting cylinders, the active area of its oil pocket, and---being that cylinder inner chamber area deducts push rod sectional area (rod area is arranged)---equates with the oil pocket active area (without rod area) of described front oil cylinder 14 secondary oil pocket 14-4; The forced stroke of described rear oil cylinder 2 and front oil cylinder 14 equates, and the initial desired location that forced stroke is set and the end of a period desired location of setting also are identical.Described rear oil cylinder 2 also comprises fluid threeway 2-1, and described fluid threeway 2-1 is installed on the oil pocket bottom outlet of rear oil cylinder 2, and one of them normal open branch is by the secondary chamber hydraulic fluid port 14-2 UNICOM of connected pipes and front oil cylinder 14; Normally closed when the connected pipes passage of another branch of described fluid threeway 2-1 then is work, adjust or when safeguarding (such as repairing or exhaust etc.) open; Also comprise the exhaust check valve that is installed in described rear oil cylinder 2 oil pockets bottom.

In platform 16 parallel lifting operating modes, such as Fig. 3: as described in front oil cylinder 14 suppress by its main chamber hydraulic fluid port 14-1 oil-feed, oil pressure is passed to secondary oil pocket 14-4 by main oil pocket 14-3, be passed to again the oil pocket of rear oil cylinder 2 by its secondary chamber hydraulic fluid port 14-2; Therefore under the oil pressure effect described rear oil cylinder 2 and front oil cylinder 14 be that isometric(al) advances synchronously; In this operating mode, the feature of described rear oil cylinder 2 and front oil cylinder is: the width between centers of rotating shaft always equals the width between centers of rotating shaft and front oil cylinder lower rotary shaft on the front oil cylinder of front oil cylinder 14 on the described rear oil cylinder lower rotary shaft of rear oil cylinder 2 and the described rear oil cylinder; And because the initial condition of platform 16 parallel liftings has been set as the horizontal extreme lower position state of described platform 16, so platform 16 remains parallel situation in this operating mode.

In platform 16 inclination decline operating modes, such as Fig. 4: platform 16 inclination decline operating modes when platform 16 is locked as described horizontal extreme lower position state; At this moment, front oil cylinder 14 begins fuel-displaced off-load by described main chamber hydraulic fluid port 14-1; Simultaneously, 2 fuel-displaced off-loads of described normal open branch by fluid threeway 2-1 of rear oil cylinder, draining flows to the secondary oil pocket 14-4 of described front oil cylinder through secondary chamber hydraulic fluid port 14-2; The push rod of front oil cylinder 14 begins to descend, the constraint of sled arm baffle plate 10-4 before related front sled arm 11 breaks away from, rotate to the front lower place around front upper hinge cover H, the front wheel 11-1 of front sled arm 11 slides backward along front wheel supporting plate 10-3, until the push rod of front oil cylinder 14 falls after rise to described initial desired location; Simultaneously, the push rod of rear oil cylinder 2 begins to descend, the constraint of sled arm baffle plate 5-4 after related rear sled arm 7 breaks away from, rotate to the back lower place around the rear upper hinge cover J of back arm 5, the rear roller 7-1 of rear sled arm 7 upwards breaks away from rear roller supporting plate 5-3, until the push rod of rear oil cylinder 2 falls after rise to described initial desired location; Simultaneously, continue to be supported on the platform 16 of position limiting pile 1-1 end face, begin to turn forward around the first hinged-support A together with blocked back arm 5 and leveling bar 4, the front underarm 10-1 of front arm 10 and front upper arm 10-2 begin superimposed, until inclination decline extreme lower position.

In platform 16 inclination rising operating modes, such as Fig. 3: front oil cylinder 14 by as described in the main chamber hydraulic fluid port 14-1 of front oil cylinder 14 begin oil-feed and suppress, oil pressure is passed to secondary oil pocket 14-4 by main oil pocket 14-3, be passed to again the oil pocket of rear oil cylinder 2 by its secondary chamber hydraulic fluid port 14-2, rear oil cylinder 2 returns to rear sled arm 7 gradually fit after sled arm baffle plate 5-4 attitude, so far oil pressure just is passed to the push-rod piston bottom surface of front oil cylinder 14 and rear oil cylinder 2; Simultaneously, platform 16 tilts to rise until return to described horizontal extreme lower position state; At this moment, the readiness for action that enters synchronous lifting of front oil cylinder 14 and rear oil cylinder 2.

Still such as Fig. 4, the utility model also comprises the bottom surface, front underarm 10-1 rear end that is installed in described front arm 10, is positioned at the front limit journal stirrup 10-5 of the both sides of front wheel supporting plate 10-3; The bottom surface of described front limit journal stirrup 10-5 is cambered surface; The inclination decline extreme lower position of described platform 16 is to determine like this: at this moment, and the base plate of the bottom cambered surface contact base 1 of described front limit journal stirrup 10-5; And current oil cylinder 14 becomes again the fulcrum that starts when having an effect when beginning lifting from described extreme lower position; Described front limit journal stirrup 10-5 also is provided with the lockhole for packing.

Such as Fig. 1, Fig. 6 and Fig. 7, the utility model also comprises the rear ratchet fender guard 6 that is installed on the rear oil cylinder 2; Described rear ratchet fender guard 6 comprises rear pawl base 6-1 and the rear ratchet 6-2 that is all the tube seat structure, and the two is mutually hinged by the hinge that tail end arranges; Described rear pawl base 6-1 bottom land contains and is fixed on the lower abdomen of rear oil cylinder 2, and its head end is concordant with the head of rear oil cylinder 2; The groove top of described rear ratchet 6-2 is contained the upper abdomen of rear oil cylinder 2 and is straddled the push rod top of rear oil cylinder 2 by the semicircle orifice that arranges on its head end claw-plate; Also comprise be installed in the rear pawl base 6-1, the rear ratchet bar 6-3 that axially is consistent of trend and rear oil cylinder 2; Described rear ratchet bar 6-3 is comprised of left and right sides tooth bar, an end of left and right tooth band fraising respectively with the rear oil cylinder of rear oil cylinder 2 on rotating shaft hinged, and be installed in respectively in the left and right sides neutral gear between the inboard and rear oil cylinder 2 of rear pawl base 6-1 tube seat.Rear ratchet fender guard 6 also comprises exhaust hood 3, and tail end, its ball head of pushing rod that described exhaust hood 3 is installed in described rear pawl base 6-1 contact with the bending riser that rear ratchet 6-2 tail end arranges, and the rear ratchet 6-2 of ratchet fender guard 6 is to remove engagement after being used for promoting.Comprise that also an end is fixed on the rear pawl base 6-1, the rear limit spring 6-4 that the other end is connected with rear ratchet 6-2, it is used for preventing that rear ratchet 6-2 from dislocating when flicking.

Such as Fig. 1, Fig. 8 and Fig. 9, utility model also comprises the front ratchet fender guard 12 that is installed on the front oil cylinder 14; Described front ratchet fender guard 12 comprises front pawl base 12-1 and the front ratchet 12-2 that is all the tube seat structure, and the two is hinged by the hinge that tail end arranges; Described front pawl base 12-1 bottom land contains and is fixed on the lower abdomen of front oil cylinder 14, and its head end is concordant with the head of front oil cylinder 14; The groove top of described front ratchet 12-2 is contained the upper abdomen of front oil cylinder 14 and is straddled the push rod top of front oil cylinder 14 by the semicircle orifice that arranges on its head end claw-plate; Also comprise be installed in the front pawl base 12-1, the front ratchet bar 12-3 that axially is consistent of trend and front oil cylinder 14; Described front ratchet bar 12-3 is comprised of left and right sides tooth bar, an end of left and right tooth band fraising respectively before on the front oil cylinder of oil cylinder 14 rotating shaft hinged, and be installed in respectively in the left and right sides neutral gear between the inboard and front oil cylinder 14 of front pawl base 12-1 tube seat; Front ratchet fender guard 12 also comprises front air cylinder 13; Tail end, its ball head of pushing rod that described front air cylinder 13 is installed in described front pawl base 12-1 contact with the bending riser that front ratchet 12-2 tail end arranges, and the front ratchet 12-2 of ratchet fender guard 12 is to remove engagement before being used for promoting.Comprise that also an end is fixed on the front pawl base 12-1, the front limit spring 12-4 that the other end is connected with front ratchet 12-2, it is used for preventing that front ratchet 12-2 from dislocating when flicking.

The ratchet set-up mode of the ratchet bar 6-3 of described rear ratchet fender guard 6 and the ratchet bar 12-3 of front ratchet fender guard 12 is: be provided with highly accordingly the helical teeth of several equal pitchs with between the minimum and the highest zone of parallel lifting several, correspond respectively to several operating altitudes of ratchet, ratchet engagement locking.

Such as Fig. 1 and Fig. 2, the utility model also comprises the panel bottom surface that is installed in described platform 16, the high-order block 20 that is positioned at parallel slide block 19 rears, the described left and right sides, and it is used for limiting the maximum height that platform rises.Described maximum height is to determine like this: rear underarm 5-1 and rear upper arm 5-2(or front underarm 10-1 and front upper arm 5-2) roughly in vertical state, this is in order to prevent from occurring when excessive because of the support arm subtended angle failure mode of sled arm and the slippage of sled arm baffle plate.

Such as Fig. 1, the utility model also comprises high-order block 20 inboards that are installed in described platform 16, and the rear end that the opto-electronic pickup head is positioned at high-order block 20 is the second photoelectric switch 21 of front position slightly; Described the second photoelectric switch 21 also is a kind of electric normal open switch that gets, it is used for identifying the horizontal extreme higher position of the platform 16 that arranges and sends the instruction that stops the rising of platform platform, when the parallel slide block 19 in the described left and right sides was about to arrive at the front end of high-order block 20 of platform 16, it turn-offed in advance.

Still such as Fig. 1, also comprise two Self-carried type ramps 15 that are installed in platform 16 front end both sides, by its top board bottom surface applying platform 16, also by with platform circular hole bearing pin and be affiliated on platform 16 with the adaptive arc plate in platform circular arc outer one to one, when platform is in inclination decline extreme lower position, namely pull off a soft landing in Self-carried type ramp 15.

Such as Fig. 3, the utility model also comprises the rear underarm 5-1 front end bottom surface that is installed in described back arm 5, the rear spacing journal stirrup 5-5 that is positioned at the left and right sides of rear roller supporting plate 5-3; Also comprise on the base plate that is fixed on described base 1 and be provided with forward and backward packing jam plate 1-2 and the 1-3 of lockhole, when platform 16 is in horizontal minimum altitude, they lay respectively at the below of front limit journal stirrup 10-5 and rear spacing journal stirrup 5-5, its lockhole respectively with front limit journal stirrup 10-5 and rear spacing journal stirrup 5-5 on lockhole corresponding one by one; Adopting bolt to connect respectively above-mentioned one to one lockhole during packing can connect as one the utility model device.

As shown in Figure 1, described control setup 9 comprises the oil pump 26 that is connected with the main chamber hydraulic fluid port 14-1 of described front oil cylinder 14, is connected the compressed air source 22 that is connected with front air cylinder by gas threeway and described exhaust hood 3; The oil pump 26 also normal open branch of the fluid threeway 2-1 by rear oil cylinder 2 is connected, also is connected with another normally closed branch of fluid threeway 2-1 by connected pipes with the secondary chamber hydraulic fluid port 14-2 of front oil cylinder 14.

Described control setup 9 also comprises the second electromagnetic valve 25 that is connected with the chargine line of front oil cylinder 14 main chamber hydraulic fluid port 14-1, the first electromagnetic valve 27 that is connected in the 4th electromagnetic valve 23 on compressed air source 22 gas circuits and connects respectively oil pump 26 oil outlets and fuel tank; Also comprise the 3rd electromagnetic valve 24 that is connected with another normally closed branch of fluid threeway 2-1.

Described control setup 9 also comprises described the first photoelectric switch 17 and the second photoelectric switch 21.

Described the second electromagnetic valve 25 and the 3rd electromagnetic valve 24 are hydraulic directional control valve, and the first electromagnetic valve 27 is hydraulically-controlled one-way valve, and described the 4th electromagnetic valve 23 is Pneumatic check valve.

Described control setup 9 also comprises keypad 28, and the button on the keypad 28 comprises lifting key, parallel decline key, inclination decline key, locking key and adjustment key.

Described control circuit comprises following loop: the rising circuit that the first is composed in series by the motor of lifting key switch, oil pump 26 and the second electromagnetic valve 25 and the second photoelectric switch 21; It two is the parallel decline circuit that composed in series by parallel decline key switch, the first electromagnetic valve 27, the first photoelectric switch 17 and the 4th electromagnetic valve 23; It three is inclination decline loops that inclination decline key switch and the first electromagnetic valve 27 and the 4th electromagnetic valve 23 compose in series; In parallel decline circuit, also be serially connected with described locking key.Also comprise another circuit of adjusting or use when safeguarding by the motor of adjusting key switch, oil pump 26 and the 3rd electromagnetic valve 24 being used for of composing in series.

Control function when the button switch of described keypad 28 triggers and control sequential are set by pre-programmed, and it has following feature: described lifting key switch key is namely connected the rising circuit: turn-off the first electromagnetic valve 27, connect oil pump 26 when connecting the second electromagnetic valve 25; Described parallel decline key switch button is namely connected parallel decline circuit: of short duration connection rising circuit the second electromagnetic valve 25 of elder generation, unlatching oil pump 26, stop after the of short duration time-delay, and connect again the first electromagnetic valve 27 and the 4th electromagnetic valve 23.The parallel decline of platform; The time-delay timing be by the push rod lifting by oil cylinder of the ratchet bar of ratchet fender guard slide off latched position and time of flicking determined.Described tilt key decline switch only could be connected under the state that the first photoelectric switch 17 turn-offs; Under the state that the first photoelectric switch 17 turn-offs, namely connect inclination decline circuit by described inclination decline key switch: of short duration connection rising circuit the second electromagnetic valve 25 of elder generation, unlatching oil pump 26, stop after the of short duration time-delay, connect the first electromagnetic valve 27 the 3rd electromagnetic valve 24 again, platform inclination descends; Turning on and off of described locking key switch controls the 4th electromagnetic valve 23 namely turn-offed the 4th electromagnetic valve 23, opened the first electromagnetic valve 27 simultaneously by locking key, but by the then release of parallel decline key switch, recover to connect the 3rd electromagnetic valve 24.Press the adjustment key, then can enter setting or attended operation.

The initial condition of platform 16: horizontal minimum altitude state, this moment, the first photoelectric switch 17 was normal open; Plugged enters parallel lifting operating mode.As shown in Figure 1.

1), press lifting key: oil pump 26 starts, front oil cylinder 14 related rear oil cylinder 2 oil-feeds are suppressed, platform 16 parallel risings can rise to arbitrary height of setting in the stroke by crawl, and can be locked in minimum altitude to the arbitrary setting operating altitude between the maximum height by the ratchet fender guard; When platform 16 was about to rise to the maximum height of setting, the second photoelectric switch 21 turn-offed, and stopped continuing to rise, and pressed parallel decline key decline and can recover to open.

2), press parallel decline key: oil pump 26 starts, stop after the of short duration time-delay, platform 16 first one section of parallel rising (for the cylinder release is prepared), 23 conductings of the 4th electromagnetic valve, cylinder flicks the ratchet of locking, the first electromagnetic valve 27 is opened, front oil cylinder 14 related rear oil cylinder 2 time-delay release oil returns, platform 16 parallel declines.

In platform 16 parallel lifting process, press locking key, the 4th electromagnetic valve 23 turn-offs, and cylinder cutout, platform 16 be by deadweight decline, and the ratchet of safety device is to front slide until lock on the nigh ratchet, and the current height of platform 16 is locked; As continuing lifting, press parallel decline key and get final product release.

Platform 16 continues to descend, when roughly fitting the horizontal extreme lower position of locking to the bottom surface of the end face of position limiting pile 1-1 and platform 16, the first photoelectric switch 17 turn-offs, the 4th electromagnetic valve 23 turn-offs, the second electromagnetic valve 25 continues conducting, and front oil cylinder 14 is in packing state together with rear oil cylinder 2.As shown in Figure 3.

3), when platform 16 horizontal minimum altitude state, press inclination decline key, platform 16 front ends tilt to descend until the inclination extreme lower position.As shown in Figure 4.

4), (continued access 3) press lifting key again, the first electromagnetic valve 27 is closed, oil pump 26 starts, front oil cylinder 14 related rear oil cylinder 2 oil-feeds are suppressed, platform 16 tilts to rise; Until horizontal extreme lower position---the first photoelectric switch 17 recovers to open, and platform 16 finishes tilt mode.Get back to initial condition.As shown in Figure 1.

Claims

1. the folded formula flexible lifting mechanism of a car body correcting machine, comprise base (1), platform (16), be connected to back arm (5), front arm (10) between base (1) and the platform (16), it is characterized in that: described back arm (5) comprises mutually hinged rear underarm (5-1) and rear upper arm (5-2), described rear underarm (5-1) is hinged with base (1), and described rear upper arm (5-2) is hinged with platform (16); Also comprise leveling bar (4), described leveling bar (4) comprises the mutually hinged lower beam in end (4-1) and upper boom (4-2), the other end of lower beam (4-1) is articulated in the arm body of rear underarm (5-1), the arm body of the arm body of upper boom (4-2) and rear upper arm (5-2) is mutually hinged, and the other end of upper boom (4-2) is hinged with the parallel slide block in the left and right sides (19) of going up the bottom surface sliding block joint on plane with platform (16); Described front arm (10) comprises mutually hinged front underarm (10-1) and front upper arm (10-2), and described front underarm (10-1) is hinged with base (1), and described front upper arm (10-2) is hinged with platform (16);

Hinged center-point between rear underarm (5-1) and the rear upper arm (5-2) is to the distance of the hinged center-point between rear upper arm (5-2) and the platform (16), hinged center-point between rear underarm (5-1) and the rear upper arm (5-2) is to the distance of the hinged center-point between rear underarm (5-1) and the base (1), hinged center-point between front underarm (10-1) and the front upper arm (10-2) to the hinged center-point between the distance of the hinged center-point between front upper arm (10-2) and the platform (16) and front underarm (10-1) and the front upper arm (10-2) extremely four distances of distance of the hinged center-point between front underarm (10-1) and the base (1) equate; Hinged center-point between the arm body that hinged center-point between the arm body of the arm body of upper boom (4-2) and rear upper arm (5-2) to the distance of the hinged center-point between rear upper arm (5-2) and the platform (16) equals upper boom (4-2) and the arm body of rear upper arm (5-2) is to the distance of the hinged center-point between the parallel slide block with the left and right sides of upper boom (4-2) (19); Hinged center-point between the arm body of the arm body of upper boom (4-2) and rear upper arm (5-2) to the distance of the hinged center-point between rear underarm (5-1) and the rear upper arm (5-2) equals hinged center-point between lower beam (4-1) and rear underarm (5-1) the arm body to the distance of the hinged center-point between lower beam (4-1) and the upper boom (4-2); Hinged center-point between the arm body of the arm body of upper boom (4-2) and rear upper arm (5-2) to the distance of the hinged center-point between lower beam (4-1) and the upper boom (4-2) equals hinged center-point between lower beam (4-1) and rear underarm (5-1) the arm body to the distance of the hinged center-point between rear underarm (5-1) and the rear upper arm (5-2);

Comprise that also the upper end is provided with rear sled arm hinge cover (T), arm body and is provided with the rotating shaft of rear sled arm and lower end and rear sled arm (7) and the upper end of rear roller (7-1) are housed are provided with front sled arm hinge cover (R), the arm body is provided with the front sled arm (11) that front wheel (11-1) is equipped with in the rotating shaft of front sled arm and lower end; The rotating shaft of described rear sled arm is hinged on it the arm of rear upper arm (5-2), and the rotating shaft of described front sled arm is hinged on it the arm of front upper arm (10-2); The initial desired location that also comprises forced stroke, forced stroke and end of a period desired location be identical and rear oil cylinder (2) and front oil cylinder (14) synchronized propelling when work all; Described rear oil cylinder (2) is articulated in the arm body of rear underarm (5-1) by oil cylinder lower rotary shaft thereafter, and is connected in the described rear sled arm hinge cover (T) by rotating shaft on the oil cylinder thereafter; Described front oil cylinder (14) is articulated in the arm body of front underarm (10-1) by its front oil cylinder lower rotary shaft and is connected in the described front sled arm hinge cover (R) by rotating shaft on its front oil cylinder.

2. the folded formula flexible lifting mechanism of car body correcting machine as claimed in claim 1 is characterized in that: also comprise being fixedly arranged on the rear sled arm baffle plate (5-4) on the rear upper arm (5-2) and being fixedly arranged on front sled arm baffle plate (10-4) on the front upper arm (10-2).

3. the folded formula flexible lifting mechanism of car body correcting machine as claimed in claim 1 is characterized in that: also comprise the position limiting pile (1-1) that is fixedly arranged on base (1) upward and is used for locking the horizontal extreme lower position of described platform (16).

4. the folded formula flexible lifting mechanism of car body correcting machine as claimed in claim 1, it is characterized in that: also comprise the first photoelectric switch (17) for the horizontal extreme lower position of Identification platform (16) locking, this first photoelectric switch (17) is installed in described platform (16) upward and is positioned at the place ahead of the parallel slide block in the described left and right sides (19).

5. the folded formula flexible lifting mechanism of car body correcting machine as claimed in claim 1 is characterized in that: also comprise being installed in described platform (16) upward and being positioned at the high-order block (20) that the parallel slide block in the described left and right sides (19) rear is used for limiting platform (16) rising maximum height; Also comprise the second photoelectric switch (21) for the horizontal extreme higher position of Identification platform (16); Described the second photoelectric switch (21) is installed in the rear end anterior position that described high-order block (20) is inboard, the opto-electronic pickup head is positioned at high-order block (20).

6. such as the folded formula flexible lifting mechanism of claim 1 or 2 or 3 or 4 or 5 described car body correcting machines, it is characterized in that: described front oil cylinder (14) is a kind of double-acting cylinder, the following cylinder inner chamber in its piston bottom surface is made as main oil pocket (14-3), and the above cylinder inner chamber of its piston-top surface is made as secondary oil pocket (14-4); Be provided with the main chamber hydraulic fluid port (14-1) with described main oil pocket (14-3) UNICOM in the bottom of described front oil cylinder (14); Also near main chamber hydraulic fluid port (14-1), be provided with the secondary chamber hydraulic fluid port (14-2) through oil pipe and described secondary oil pocket (14-4) top UNICOM; Described rear oil cylinder (2) is a kind of single-acting cylinder, and the active area of its oil pocket equates with the oil pocket active area of secondary oil pocket (14-4); Described rear oil cylinder (2) also comprises fluid threeway (2-1), and described fluid threeway (2-1) is installed on the oil pocket bottom outlet of rear oil cylinder (2), and one of them normal open branch is by connected pipes and described secondary chamber hydraulic fluid port (14-2) UNICOM.

7. such as the folded formula flexible lifting mechanism of claim 1 or 2 or 3 or 4 or 5 described car body correcting machines, it is characterized in that: also comprise the ratchet fender guard that is installed on the oil cylinder; Described ratchet fender guard comprises pawl base and the ratchet that is all the tube seat structure, and the two tail end is mutually hinged; Described pawl base bottom land contains and is fixed on the lower abdomen of oil cylinder, and its head end is concordant with the head of oil cylinder; The groove top of described ratchet is contained the upper abdomen of oil cylinder and is straddled the push rod top of oil cylinder by the semicircle orifice that arranges on its head end claw-plate; Described ratchet fender guard also comprises and is installed in the pawl base and the ratchet bar that axially is consistent of trend and oil cylinder; Described ratchet bar is comprised of left and right sides tooth bar, an end of left and right tooth band fraising respectively with the oil cylinder of oil cylinder on rotating shaft hinged, and be installed in respectively in the left and right sides neutral gear between pawl base tube seat inboard and the oil cylinder; Described ratchet fender guard also comprises cylinder, and described cylinder is installed in the tail end of described pawl base, and its ball head of pushing rod contacts with the bending riser that the ratchet tail end arranges, and is used for promoting ratchet to remove engagement; Described ratchet fender guard comprises that also an end is fixed on the pawl base, and the limit spring that the other end is connected with ratchet is used for preventing that ratchet from dislocating when flicking.

8. such as the folded formula flexible lifting mechanism of claim 1 or 2 or 3 or 4 or 5 described car body correcting machines, it is characterized in that: also comprise the rear roller supporting plate (5-3) that is fixedly arranged on the rear underarm (5-1) and be installed in front underarm (10-1) bottom surface, rear end and be positioned at the front limit journal stirrup (10-5) of the both sides of front wheel supporting plate (10-3); The bottom surface of described front limit journal stirrup (10-5) is cambered surface; Described front limit journal stirrup (10-5) also is provided with the lockhole for packing.

9. the folded formula flexible lifting mechanism of car body correcting machine as claimed in claim 8 is characterized in that: also comprise the rear roller supporting plate (5-3) that is fixedly arranged on the rear underarm (5-1) and be installed in described rear underarm (5-1) front end bottom surface and be positioned at the rear spacing journal stirrup (5-5) of the left and right sides of rear roller supporting plate (5-3); Also comprise on the base plate that is fixed on described base (1) and be provided with front packing jam plate (1-2) and the rear packing jam plate (1-3) of lockhole, when platform (16) when being in horizontal minimum altitude, they lay respectively at the below of front limit journal stirrup (10-5) and rear spacing journal stirrup (5-5), its lockhole respectively with front limit journal stirrup (10-5) and rear spacing journal stirrup (5-5) on lockhole corresponding one by one.