CN102086012A - Safety support plate mechanism of hoisting equipment - Google Patents
Safety support plate mechanism of hoisting equipment Download PDFInfo
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- CN102086012A CN102086012A CN2009102535274A CN200910253527A CN102086012A CN 102086012 A CN102086012 A CN 102086012A CN 2009102535274 A CN2009102535274 A CN 2009102535274A CN 200910253527 A CN200910253527 A CN 200910253527A CN 102086012 A CN102086012 A CN 102086012A
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- safe support
- lifting
- safety support
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Abstract
The invention relates to a safety support plate mechanism of hoisting equipment. The hoisting equipment is provided with a hoisting structural member and a box-shaped frame, wherein the hoisting structural member comprises a sliding rod piece. The safety support plate mechanism comprises a safety support plate, a cylindrical revolved body, a sliding arm and a roller wheel, wherein the safety support plate is hinged with the box-shaped frame of the hoisting equipment and pivoted to be closed and opened; the cylindrical revolved body is fixed on the safety support plate and provided with a long chute; the chute is provided with a spiral part and straight line parts positioned at the two ends of the spiral part; the sliding arm is rigidly connected to a sliding rod piece and provided with a free end; when the hoisting structural member is hoisted, the sliding arm is restrained to slide in a straight line; and the roller wheel is arranged at the free end of the sliding arm and can roll in the chute. When the hoisting structural member is hoisted, the sliding arm makes a straight line motion to drive the safety support plate to be opened; and when the hoisting structural member falls, the sliding arm makes a straight line motion to drive the safety support plate to be closed. Thus, when the safety support plate is in an open state, hoisting machinery can be protected from the danger of lateral inversion. The straight line parts at the two ends of the spiral part of the chute can be used for guaranteeing self-locking characteristics.
Description
Technical field
The present invention relates to the pit safety support plate mechanism of lifting machinery; relate to safe support plate mechanism particularly such as scissor-type lifting machinery; it adopts screw rod and idler wheel mechanism to open safe support plate, thus when lifting machinery during in pit or the operation of other similar hazardous locations protection lifting machinery to avoid the generation of inclination dangerous situation.
Background technology
High-altitude operation platform is lifted to suitable aloft work height with operating personnel and material.Usually, the height of job platform is achieved by the lift arm assembly.Lift arm assembly and lifting platform are installed on the box-shaped that has train and can walk on the chassis.Operating personal can be controlled the speed and the direction of chassis walking on platform when aloft work.When platform lifts, the center-of-gravity position of complete machine also upwards promotes thereupon, thus increased complete machine carry such as wind or external force effect such as pit under the possibility of inclination takes place.Also correspondingly there are similar stable problem in other mines and vehicle for construction.When this type of machine-walking, the pit of one or more wheels subsides, all can cause machinery to topple with the side swipe of road Ya and with colliding with of roadblock, thereby causes any property loss and personal injury.
The kind of Known designs that should the mechanical anti-rolling device of lifting has had a lot, but has the too many motion parts that cause this type of anti-rolling device to lose efficacy easily on these type of apparatus structures of great majority.This type of Design of device adopts connecting rod, roller, gas spring or spring, bearing pin, bolt and nut mostly.And the functional component major part that really can make safe support plate remain in open mode is spring or gas spring.
If spring failure when the safe support plate work of opening is in functional status will directly cause the security function of safe support plate to lose efficacy.In the design of all known safe support plate still none example have the protection self-locking device that can prevent spring failure.The present invention has highly effective anti-inclination fender guard, thus property damage and the personal injury that can avoid inclination harm to cause.
In order to solve aforesaid problem, need a kind of later-model high-altitude lifting machine security support plate mechanism.
Summary of the invention
The invention provides a kind of safe support plate mechanism of lifting equipment, described lifting equipment has the lift members that comprises the slip rod member, described lifting equipment comprises boxed frame, described safe support plate mechanism comprises: microscler safe support plate, it is articulated in the boxed frame of described lifting equipment, and pivots between with the opening that prevents the inclination of described lifting equipment on the closure state and the next-door neighbour ground of the described box frame of next-door neighbour; The cylindrical shape gyro-rotor, it is fixed to described safe support plate and is provided with microscler chute, the straight line portion that described chute has spiral part and is positioned at described spiral part two ends; Travelling arm, it is rigidly connected in described slip rod member, when described lift members lifting, the described travelling arm linear slide that is tied, described travelling arm has free end; Roller, it places the free end of described travelling arm, and can roll in described chute; Wherein, when described lift members lifting, described travelling arm straight-line motion drives described safe support plate and opens, and when described lift members fell, described travelling arm straight-line motion drove described safety and props up plate closing.
Each characteristics among the above the present invention can become more full and accurate and directly perceived by following accompanying drawing and description thereof.
Description of drawings
Fig. 1 is the schematic three dimensional views of first embodiment of the translation/rotation helical rotation hinge body that is used for the folding of lifting machine security support plate of the present invention.
Fig. 2 is first embodiment of the translation that is used for the folding of lifting machine security support plate/rotation helical rotation hinge body of Fig. 1 and the schematic three dimensional views of safe support plate and roller installation.
Fig. 3 is the schematic three dimensional views of roller in rotating helical guide groove of the safe support plate mechanism of Fig. 1.
Fig. 4 is the schematic three dimensional views that is installed in the helical rotation hinge on the safe support plate of the present invention.
Fig. 5 is the schematic three dimensional views of simple helix rotating hinge of the present invention.
Fig. 6 is the schematic three dimensional views of second embodiment of the translation/rotation helical rotation hinge body that is used for the folding of lifting machine security support plate of the present invention.The safe support plate of this figure is in closure state.
The schematic three dimensional views that Fig. 7 installs for second embodiment and the safe support plate of the translation that is used for the folding of lifting machine security support plate/rotation spiral hinge body of Fig. 6.The safe support plate of this figure is in opening.
Fig. 8 is the schematic three dimensional views of double helix hinge of the present invention.
Fig. 9 is the schematic three dimensional views of the 3rd embodiment of the translation/rotation spiral hinge body that is used for the folding of lifting machine security support plate of the present invention.
The schematic three dimensional views that Figure 10 installs for the 3rd embodiment and the safe support plate of the translation that is used for the folding of lifting machine security support plate/rotation spiral hinge body of Fig. 9.
Figure 11 is the birds-eye view of the 3rd embodiment assembly of the translation that is used for the folding of lifting machine security support plate/rotation spiral hinge body of Fig. 9.
Figure 12 is the cutaway view of the 3rd embodiment assembly of the translation that is used for the folding of lifting machine security support plate/rotation spiral hinge body of Fig. 9.
Figure 13 is the translation that is used for the folding of lifting machine security support plate/rotation double helix hinge of Fig. 9.
Figure 14 is the axial, cross-sectional view of the translation that is used for the folding of lifting machine security support plate/rotation double helix hinge of Fig. 9.
Figure 15 A is the translation/front elevation of rotation double helix hinge body when the safety support plate is in closure state of Fig. 9.
Figure 15 B is the translation/front elevation of rotation double helix hinge body when the safety support plate is in opening of Fig. 9.
Figure 16 is the schematic three dimensional views of the 4th embodiment of the translation/rotation spiral hinge body that is used for the folding of lifting machine security support plate of the present invention.The safe support plate of this figure is in opening.
Figure 17 is the schematic three dimensional views of the 4th embodiment of the translation/rotation spiral hinge body that is used for the folding of lifting machine security support plate of the present invention.The safe support plate of this figure is in closure state.
Figure 18 is the schematic three dimensional views of the slide block mechanism of the 4th embodiment of the translation that is used for the folding of lifting machine security support plate/rotation spiral hinge body of Figure 16 or Figure 17.
In all accompanying drawings, similarly reference number is as one man represented corresponding feature.
The specific embodiment
As Figure 1-3, lifting machine security support plate open-and-close mechanism of the present invention is made up of the translation rigid body 15 of helical rotation hinge 25 and cooperation with it.When the lifting mechanism lifting, this open-and-close mechanism can self-opening be installed on the safe support plate of lifting machinery 5 bottoms.After safe support plate was opened, the gap between lifting machinery and the ground reduced, thereby preventing that complete machine its road wheel of when walking from tying up to falls into pit or complete machine is endangering such as the inclination under the moment of face effects such as wind carries on the unfairness ground.
Spiral cuts with scissors safe support plate mechanism and is cut with scissors by reciprocal translation rigid body and the helical rotation that cooperates with it by roller and form.Whole mechanism is in order to the safe support plate of operation lifting machinery.When the lifting mechanism lifting, forward is opened safe support plate, when lifting mechanism falls, oppositely folds safe support plate.
Usually, the safe support plate SG of lifting machinery 5 places the left and right sides of machinery chassis, with the contingent two-way inclination of protection complete machine.When the safety support plate was opened, safe support plate can prevent that one or more road wheels from falling into pit and the inclination that produces.Straight trough on the helical rotation hinge is used to guarantee the self-locking state of safe support plate.
Spiral cuts with scissors safe support plate mechanism can be converted to the straight-line motion of rigid body rotatablely moving of rigid body.This conversion of motion is realized by the lead of screw on the suitable adjustment helical rotation hinge.According to this principle, the straight-line motion of the translation rigid body 15 on the lifting rod member assembly of lifting machinery 5 can be transformed into rotatablely moving of helical rotation hinge 25, thereby the safe support plate SG that drives lifting machinery 5 is rotated open and close movement.Translation rigid body 15 can move along the parallel axes of helical rotation hinge 25 shown in Figure 4.Roller 20 on the related translation rigid body end of straight-line motion meeting of translation rigid body 15 is along with 15 motions of translation rigid body, while is engagement rolling in the helical guide groove of helical rotation hinge 25, thereby realizes the transformation that rotatablely moves that is linearly moved to helical rotation hinge 25 of translation rigid body 15.
After translation rigid body 15 was covered the stroke of a pitch along multiple screw channel 80a or 80b, screw rotor 25 carried out 360 ° complete cycle revolution along its rotation axis.
As shown in Figure 3, when translation rigid body 15 walked to be over the rectilinear path of 1/4th pitch along multiple Luo Dao after, helical rotation hinge 25 had been carried out the revolution of 90 ° or quadrant along its rotation axis.For most of lifting machineries, the revolution that safe support plate is 90 ° just can meet design requirement.Therefore the helical rotation of 1/4th pitch hinge 25 can be designed to compact small and exquisite version according to designing requirement.
Fig. 3 shows the schematic three dimensional views of the helical rotation hinge 25 with 1/4th pitch.Reference numeral 27 refers to the fulcrum post axis hole on this rotating hinge.With the straight trough section 300a of rotor shaft line parallel can smooth transition to the The initial segment 305 of helical guide groove 70, with the straight trough section 300b of rotor shaft line parallel can smooth transition to the terminate section of helical guide groove 70.
Two linear straight troughs that are positioned at helical guide groove section start and termination place and integrate with helical guide groove play the function of rotation lock to helical rotation hinge 25, thereby guarantee that safe support plate packs up in 0 °, and roller 20 can only be done in straight trough parallelly to move in 90 °, therefore safe support plate is self-locking in safe open mode.This point is extremely important, and when translation rigid body 15 entered in the lengthening straight trough of helical rotation hinge, possibility is closed under the interference of external force to lose safe effect thereby safe support plate does not definitely have.This has also further guaranteed the function and the safety of safe support plate.
Fig. 4 is the safe support plate 10a in the translation/rotation helical rotation hinge body of first embodiment.Can see and limit the straight trough 400 that slide block is made linear slide.Helical rotation hinge 25 is fixed on the safe support plate and is coaxial with bearing pin PV1, and coaxial support bearing pin PV1 and PV2 are hinged to safe support plate on the chassis of lifting machinery 5.Conveyor screw 70 and lengthening linear ramp 400 the two all directly rigidity be welded on the safe support plate.As shown in Figure 2, roller 20 can roll relatively at the terminal of translation rigid body 15.The other end of translation rigid body 15 can directly be rigidly fixed on the slide block LSS of lift arm assembly.
Refer again to Fig. 1, the slide block LSS that is actually on the lift arm assembly with lifting means 5 of translation rigid body 15 is rigidly connected as can be seen.When the lift arm assembly was in closure state, the roller on the translation rigid body 15 was in the helical guide groove initiating terminal of helical rotation hinge 25.In case lift arm is in the lifting state, thereby cutting slide block LSS on the arm begins to move forward and drives the translation rigid body and drive the helical guide groove engagement on roller 20 and the helical rotation hinge 25 and force helical rotation hinge 25 to be rotated with rectilinear motion mode, thus, safe support plate SG interlock is opened, and safe support plate is articulated on the chassis by bearing pin PV1 and PV2.
When roller 20 had been finished the stroke of 1/4th pitch and enter the straight trough section of helical rotation hinge, 90 ° of safe support plate SG revolutions also were in full-gear.Therefore, as long as the lift arm assembly of lifting machinery 5 is in the lifting state, translation rigid body 15 just is self-locking in roller 20 in the straight trough, thereby guarantees that safe support plate SG is in the safety hit open position.When the lift arm assembly of lifting machinery 5 descended, 15 counter motions of translation rigid body made roller 20 break away from the interior self-locking state of straight trough, thereby safe support plate SG are forced to take back make position.Can see that safe support plate 10a has only used moving parts seldom just to realize its functional safety hit ON operation.Further, will introduce second and third embodiment of translation/rotation helical rotation hinge device below, it can help to avoid using long straight trough guide rail and crooked rigidity translation rigid body.
That Fig. 6-7 introduces is the safe support plate 10b of mechanism of second embodiment, and this mechanism comprises crank motion rigid body 610, helical rotation hinge 25 and compression spring 600.The axostylus axostyle that spring motion guide bar 601 is furnished with the compression spring throw-out collar that is positioned at the termination and noncircular cross section to be keeping the straight-line motion of guide spring 600, spring axially and axial coincidence of spring motion guide bar 601.Rotation-prevention stay bearing plate 602 is captiveed joint with the chassis of lifting machinery 5.The geometric configuration in the aperture of rotation-prevention stay bearing plate 602 is identical with the cross-sectional geometry of spring motion guide bar 601.Spring motion guide bar 601 can slide along the cooperation aperture of rotation-prevention stay bearing plate 602.Spring motion guide bar 601 rigidly fixes at distal-most end and the translation rigid body 610 from spring 600, and the horizontal component of force of therefore working as the translation rigid body affacts when helical rotation cuts with scissors 25 and can prevent that translation pilot bar 610 from rotating under the effect of moment of torsion.Helical rotation hinge 25 is hinged by the mounting plate 631 of bearing pin and complete machine 5.
When Fig. 7 shows the constraint of contact head 605 on lift arm assembly releasing when lifting machinery 5 is to translation rigid body 610, drive safe support plate SG and open thereby spring motion guide bar 601 will drive translation rigid body 610 moving linearlies under the effect of length of spring compressed power.Spring motion guide bar 601 has substituted the function of lengthening straight trough 10a easily.In a single day safe support plate is opened, and will be self-locking on the position of opening, and has only lift arm slide block on the car load 5 to spur/retrain contact head 605 on the translation rigid body 610 again and could make safe support plate remove self-locking and return it and amount to the position.
In addition, as shown in Figure 5, the manufacturing process of helical rotation hinge 25 can adopt casting or the one-shot forming of injection moulding mode, the spiral initial angle on it can with horizontal surface or vertical plane angle position at 45, become 135 ° of angles to finish after 90 ° of revolutions.This helical rotation with the special spiral angle at the beginning meter that is hinged makes some parts on the 10b of mechanism can be adjusted easily in limited space and be beneficial to installing and locating---such as roller etc.---.In addition, the easier and safe support plate SG of installing and locating hole MB that also helps on the helical rotation hinge 25 of this structure is connected by bolt.
Fig. 8-12 shows the safe support plate 10c of mechanism of the 3rd embodiment.This mechanism design comprises helical rotation hinge 905, translation rigid body 900 and spring 910, and all these parts are installed on the inner chamber of coaxial shell 890.Shown in Figure 13-14, helical rotation hinge 905 itself is a hollow cylinder with double track helical guide groove 80a and 80b.Helical rotation hinge 905 mechanisms of comparing aforesaid 10a and 10b with multiple screw channel have and can improve effect of torque in narrow space.
This helical rotation of 10c that the inventor recommends meter HSL that is hinged only has 4 inches length and 1.75 inches diameter, and weight is about 2.50 pounds.As shown in Figure 9,900 need of translation body move along the axis of rotating hinge 905 and can make rotating hinge 905 rotate.As shown in figure 12, compression spring 910 is placed in the ducted body of rotating hinge 905.Roller 1205 on the translation body and spiral chute 80a and 80b engagement.Outer cap tegillum 1202 plays the safety effect of protection roller 1205.The overhanging end 913 of the bearing pin of safe support plate and helical rotation hinge 905 is hinged.Translation clamp nut 1005 is used for the motion of the external linear translation rigid body 900 of fastening transmission and coaxial shell assembly.
Figure 15 A-15B has provided the Starting mode of the far-end control of another kind of safe support plate open-and-close mechanism 10c.Safe support plate open-and-close mechanism 10c provides a thinking for the economic development of the business-like safe support plate SG of mechanism high-mobility, multipurpose, wheeled vehicle compact in design.
Put in place in order to make safe support plate SG can receive plate, Motion Transmission rod member 1510 be fixed in complete machine 5 the position, chassis, link to each other with straight line translation rigid body 900, so that the power that rigid body 900 produces straight-line motions and resists the spring 910 in the helical rotation hinge 905 makes it to produce elastic potential energy.Motion Transmission rod member 1510 engages with translation rigid body 900 by the lift arm assembly connector LSC on the lifting vehicle car 5, in case the lift arm assembly on the lifting vehicle car 5 begins lifting, lift arm assembly connector LSC just begins to move, thereby released movement is transmitted rod member 1510, make it leave out helical rotation hinge 905 by hinge, thus, the elastic potential energy of compression spring 910 makes translation rigid body 900 motion, and safe support plate is needed to rotatablely move thereby through helical rotation hinge 905 motion of translation is converted to.
In addition, translation rigid body 900 may need a slideway to engage with Motion Transmission rod member 1510, and the vertical displacement when guaranteeing that Motion Transmission rod member 1510 pivots is not too big.Also have, when the position of lift arm assembly connector LSC when the hinge-point of safety support plate is too far away, probably need to adopt multi-connecting-rod mechanism just the translation of cutting arm assembly connector LSC might be transmitted to helical rotation hinge 900.As shown in figure 11, spiral hinge adapter plate RM can be connected to the rotating part of coaxial shell assembly 890, and translation adapter plate TM can be connected to the translation part of coaxial shell assembly 890.Motion Transmission rod member 1510 is connected to translation adapter plate TM with form slidably, and safe support plate SG can be installed on the spiral hinge adapter plate RM.
That Figure 16-18 introduces is the safe support plate 10d of mechanism of the 4th embodiment, and this mechanism gear/rack combination form replaces the spring among 10b and the 10c.This mechanism comprises the downward upper rack 1601b of following tooth bar 1601a, profile of tooth that profile of tooth makes progress, at transmission gear 1605, translation rigid body 1600 and two ends between the tooth bar up and down the helical rotation hinge 1625 of thrust bearing 1602a and 1602b is housed.When the lifting of lift arm assembly, shown in Figure 180 does straight-line motion with the rigidly connected upper rack of slide block LSS, thereby promote translation rigid body 1600 by transmission gear 1605 counter force, and force the helical rotation hinge 1625 that cooperates with it to be rotated, thereby open the safe support plate SG that is connected with the helical rotation hinge.After stroke that the roller of translation rigid body 1600 ends is finished 1/4th pitch entered line channel, upper rack 1601b continued the engagement of reach and disengaging and transmission gear 1605 with the lift arm slide block, and safe support plate is self-locking in opening.When the lift arm assembly falls back, shown in Figure 180 will break away from straight trough with transmission gear 1605 reverse engagements with the roller of forcing translation rigid body 1600 ends once more with the rigidly connected upper rack 1601b of slide block LSS, and force the helical rotation that cooperates with it to cut with scissors 1625 backward rotation and close the safe support plate SG that is connected with it.
What should draw attention to is that the public spiral hinge of 10b of mechanism and 10c and female translation body all can adopt the design form of female spiral hinge and fair kinetoplast.Certainly, compression spring also can adopt the design form of extension spring.
What should emphasize is that the present invention is not limited to the foregoing description, but comprises any all embodiment that drop in the claim scope.
Claims (1)
1. the safe support plate mechanism of lifting equipment, described lifting equipment has the lift members that comprises the slip rod member, and described lifting equipment comprises boxed frame, and described safe support plate mechanism comprises:
Microscler safe support plate, it is articulated in the boxed frame of described lifting equipment, and pivots between with the opening that prevents the inclination of described lifting equipment on the closure state and the next-door neighbour ground of the described box frame of next-door neighbour;
The cylindrical shape gyro-rotor, it is fixed to described safe support plate and is provided with microscler chute, the straight line portion that described chute has spiral part and is positioned at described spiral part two ends;
Travelling arm, it is rigidly connected in described slip rod member, when described lift members lifting, the described travelling arm linear slide that is tied, described travelling arm has free end;
Roller, it places the free end of described travelling arm, and can roll in described chute;
Wherein, when described lift members lifting, described travelling arm straight-line motion drives described safe support plate and opens, and when described lift members fell, described travelling arm straight-line motion drove described safety and props up plate closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102535274A CN102086012A (en) | 2009-12-08 | 2009-12-08 | Safety support plate mechanism of hoisting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102535274A CN102086012A (en) | 2009-12-08 | 2009-12-08 | Safety support plate mechanism of hoisting equipment |
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| CN102086012A true CN102086012A (en) | 2011-06-08 |
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| CN2009102535274A Pending CN102086012A (en) | 2009-12-08 | 2009-12-08 | Safety support plate mechanism of hoisting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040095A (en) * | 2011-10-17 | 2014-09-10 | Jlg工业公司 | Maximizing scissor lift breakover angle with fixed pothole protection |
-
2009
- 2009-12-08 CN CN2009102535274A patent/CN102086012A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040095A (en) * | 2011-10-17 | 2014-09-10 | Jlg工业公司 | Maximizing scissor lift breakover angle with fixed pothole protection |
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Application publication date: 20110608 |