CN101391733A - Hydraulic mobile lifting platform and labor-saving apparatus - Google Patents
Hydraulic mobile lifting platform and labor-saving apparatus Download PDFInfo
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- CN101391733A CN101391733A CNA2008101696433A CN200810169643A CN101391733A CN 101391733 A CN101391733 A CN 101391733A CN A2008101696433 A CNA2008101696433 A CN A2008101696433A CN 200810169643 A CN200810169643 A CN 200810169643A CN 101391733 A CN101391733 A CN 101391733A
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Abstract
The invention discloses a hydraulic movable elevation platform and a labor-saving device, comprising a chassis, a platform, scissor rods and a hydraulic cylinder. The invention is characterized in that: the labor-saving device is arranged on the chassis; when the hydraulic movable elevation platform rises at the beginning the upper end of the labor-saving device clings to a linkage rod between a couple of parallel and opposite scissor rods; the pressure oil output by an oil pump firstly enters the hydraulic cylinder of the labor-saving device through a main oil-transporting tube and the hydraulic cylinder of the labor-saving device is adopted to push the scissor to rise so as to enlarge the angles between the scissor rods, hydraulic cylinder and the horizontal line and largely reduce the stress to the scissor rods when the scissor rods rise at the beginning. The invention enhances the bad stressing condition of the hydraulic movable elevation platform rising at the beginning and the stressing to the scissor rods can be reduced by four times to a half times compared with the stressing to the existing hydraulic movable elevation platform; thefore, the weight of the structure is reduced, the material can be conserved and the cost also can be reduced with the dramatic economic and social benefit.
Description
Technical field
The present invention relates to a kind of hydraulic mobile lifting platform and work-saving device that is used for aloft work.
Background technology
When existing hydraulic mobile lifting platform initially hoists, its hydraulic actuating cylinder angle that hoists is about 30 ° with respect to horizontal angle, it is the stressed worst stage in the hydraulic mobile lifting platform lifting process, scissors rod spare is bearing the effect of maximum, force in the whole process that hoists, for satisfying the carrying needs of scissors rod spare, scissors rod spare cross section is strengthened, and makes the integral structure heaviness,, consume material, move inconvenience.
Summary of the invention
Force-bearing situation when the objective of the invention is to improve hydraulic mobile lifting platform and initially hoisting, scissors rod is little because of angle when overcoming platform and hoisting, stressed big unfavorable factor, so that platform the stressed of mechanism in whole lifting process tends to be balanced, provide a kind of hydraulic mobile lifting platform when initial rise, can improve the disadvantageous work-saving device of its scissors rod initial stressed for this reason.
For achieving the above object, hydraulic mobile lifting platform of the present invention and work-saving device, by the chassis, platform, scissors rod, hydraulic actuating cylinder is formed, it is characterized in that: on the chassis, pacify work-saving device, when hydraulic mobile lifting platform initially hoists, withstand on the connecting rod between the relative scissors rod of topmost pair of parallel the upper end of work-saving device, the pressure oil of oil pump output is responsible for by oil transportation and is at first entered in the hydraulic actuating cylinder of work-saving device, cylinder pushes scissors rod by work-saving device rises, the loading angle of all scissors rod ends and the angle out of strength of hydraulic actuating cylinder have been changed, scissors rod and hydraulic actuating cylinder are increased with respect to horizontal angle, stressed when scissors rod initially hoists reduces greatly, and the oil transportation on the hydraulic actuating cylinder top of work-saving device then is responsible for just to tilting or level is installed in hydraulic actuating cylinder fuel feeding on the scissors rod, makes that the scissors rod full load is stressed props up mobile platform.
Stressed very disadvantageous situation when work-saving device provided by the invention has improved hydraulic mobile lifting platform and initially hoists, in the whole process that hoists, the stressed of the stressed comparable existing hydraulic mobile lifting platform of scissors rod spare of the present invention reduces 4 times to half, thereby dead load alleviates, economical with materials, cost-cutting, have remarkable economic efficiency and social benefit, the mode that the hydraulic actuating cylinder level is installed can be divided into a plurality of variable leg-of-mutton truss structurals to scissors rod, and its load only acts on the tubercle of hinge, each member only is subjected to axial tension or pressure, when mechanism works, be the truss state, its stability is better, has only the structure of using work-saving device, the mode that just has the hydraulic actuating cylinder level to install, the structure of the existing hydraulic mobile lifting platform angle that initially hoists is too little, and level is installed and then can not be risen.
Description of drawings
Fig. 1 is that hydraulic mobile lifting platform uses work-saving device and hydraulic actuating cylinder inclination scheme of installation;
Fig. 2 is that hydraulic mobile lifting platform uses work-saving device and the horizontal scheme of installation of hydraulic actuating cylinder;
Fig. 3 is that the upper end of work-saving device withstands on platform bottom rising scheme drawing;
The double hydraulic cylinder analysis chart of exerting oneself when Fig. 4 is existing hydraulic mobile lifting platform initial rise;
The work-saving device analysis chart of exerting oneself when Fig. 5 is hydraulic mobile lifting platform initial rise of the present invention.
By figure each parts title is described in proper order, among Fig. 1,1, platform, 2, scissors rod, 3, connecting rod, 4, work-saving device, 5, hydraulic actuating cylinder, 6, boiler check valve, 7, oil transportation is responsible for, 8, chassis, 9, electromagnetic valve, 10, boiler check valve, 11, electromagnetic valve, 12, boiler check valve, 13, control line of electromagnetic valve, 14, control line of electromagnetic valve, 15, oil return pipe, 16, oil return pipe, 17, fuel tank, 18, oil pump, 19, the oil transportation looped pipeline, 20, oil transportation is responsible for, among Fig. 2, and 21, hydraulic actuating cylinder, 22, deflation hole.
The specific embodiment
With reference to accompanying drawing, corresponding the general sequence of claims, the invention will be further described, among Fig. 1, then interior or two ends at both sides scissors rod 2, be equipped with several work-saving device 4, the lower end of work-saving device 4 is positioned on the chassis 8, the connecting rod 3 between the relative scissors rod of uppermost pair of parallel 2 is withstood in its upper end, or withstand on bottom the flat-bed, work-saving device 4 also can pacify to the outside of both sides scissors rod 2 or, also can withstand on it on connecting rod between arbitrary layer of scissors rod 2, but, have only the connecting rod of the superiors firmly minimum, the oil transportation person in charge 20 of oil pump 18 outlets is connected the bottom of work-saving device 4 and feeds in its cylinder, the oil transportation on work-saving device 4 tops is responsible for the bottom of 7 connection hydraulic actuating cylinders 5 and is fed in its cylinder, the hydraulic oil that pumps at first enters in the cylinder of work-saving device 4, its interior expansion link of voltage rise is the limit for height degree to the utmost point, the loading angle of all scissors rods and the angle out of strength of hydraulic actuating cylinder have been changed, make it to increase, the stressed of scissors rod reduces greatly, work-saving device 4 is finished the work, be responsible for 7 in this height and position oil transportation the hydraulic oil in the work-saving device 4 is input to the bottom of hydraulic actuating cylinder 5, be that hydraulic actuating cylinder 5 is started working, the disengaging of work-saving device 4 upper ends contacts with connecting rod 3, and lifting table normally hoists, during decline, open each electromagnetic valve or open the part electromagnetic valve according to load carrying ability, make platform and work-saving device 4 return to original position, the connecting rod 3 between the scissors rod 2 is fallen on the top of work-saving device 4 again, or fall on the top of work-saving device 4 the flat-bed bottom.
The bottom peace boiler check valve 12 of work-saving device 4, the end in addition of boiler check valve 12 connects oil transportation and is responsible for 20, reveals to prevent hydraulic oil pipe, guarantees safety.
At the bottom of work-saving device 4 peace electromagnetic valve 11, the end in addition of electromagnetic valve 11 connects oil return pipe 16, and the end in addition of oil return pipe 16 connects fuel tank 17, is descended by electromagnetic valve 11 control oil returns and equipment.
The oil transportation looped pipeline 19 of oil pump 18 outlets connects the bottom of hydraulic actuating cylinder 5 and feeds in its cylinder, its effect is when work-saving device rises, hydraulic actuating cylinder 5 is not worked as yet, it is that expansion link in its chamber is forced to extract and produces vacuum that its angle changes with the rising of work-saving device 4, its negative pressure forms the rising resistance, oil transportation looped pipeline 19 is exactly the space of filling up appearance, be that expansion link is in state of equilibrium or barotropic state when work-saving device 4 operations, its pressure is less than or equal to the interior pressure of hydraulic actuating cylinder of work-saving device 4.
At the bottom of hydraulic actuating cylinder 5 peace boiler check valve 6, boiler check valve 10, the end in addition of boiler check valve 6 connects oil transportation looped pipeline 19, and the end in addition of boiler check valve 10 connects oil transportation and is responsible for 7.
At the bottom of hydraulic actuating cylinder 5 peace electromagnetic valve 9, the end in addition of electromagnetic valve 9 connects oil return pipe 15, and the end in addition of oil return pipe 15 connects fuel tank 17, reveals to prevent hydraulic oil pipe, guarantees safety.
Among Fig. 2, parallel several relative scissors rod 2 two ends, both sides, by connecting rod 3 end of several scissors rods 2 of both sides is connected, hydraulic actuating cylinder 21 levels are installed on the double-type connecting rod 3, the oil transportation on work-saving device 4 tops is responsible for 7 connection hydraulic actuating cylinders 21 and is fed in its cylinder, the oil transportation looped pipeline 19 of oil pump 18 outlets connects the head of hydraulic actuating cylinder 21 and feeds its cylinder inner chamber, when its cylinder inner chamber advances hydraulic oil, expansion link in the hydraulic actuating cylinder 21 rises to its cylinder inner chamber withdrawal and pulling scissors rod 2, the inner resistance that the produces when deflation hole 22 of its cylindrical shell afterbody can overcome the expansion link operation, the mode that hydraulic actuating cylinder 21 levels are installed, make the quadrangle of the hinge parallelogram lindage of scissors rod 2 be split up into two triangles from the diagonal angle, become a plurality of variable leg-of-mutton truss structurals, its load only acts on the tubercle of hinge, each member only is subjected to axial tension or pressure, given full play to the load-carrying capacity of material, when mechanism works, be the truss state, its stability is better, has only the structure of using work-saving device, the mode that just has hydraulic actuating cylinder 21 levels to install, the structure of the existing hydraulic mobile lifting platform angle that initially hoists is too little, and level is installed and then can not be risen.
The head peace electromagnetic valve 9 of hydraulic actuating cylinder 21 cylindrical shells descends with control convenience, and the oil return pipe 15 that the end in addition of electromagnetic valve 9 is pacified is connected with fuel tank 17.
Hydraulic actuating cylinder 5, hydraulic actuating cylinder 21 have been described the different installation of same hydraulic actuating cylinder, are not limited to the foregoing description, and it can be any of existing mounting means.
The double hydraulic cylinder analysis chart of exerting oneself when Fig. 4 is existing hydraulic mobile lifting platform initial rise, be analyzed as follows: the initial stressed angle is about 30 ° when having the mobile hoistable platform initial rise now, several pairs oil cylinder segmentation asymmetry effect is arranged in scissors rod, and only act on a side of horizontal direction, get the one section scissors rod and two oil cylinders carry out force analysis;
If platform loads and deadweight G=1 ton
The suffered power of the direct acting every scissors rod of P---hydraulic actuating cylinder
N---is stressed scissors rod quantity directly
P=G/n/sin30 °=1/2/0.5=1 ton
Be that the suffered power of the direct acting every scissors rod of hydraulic actuating cylinder is 1 ton.
Fig. 5 is the hydraulic mobile lifting platform work-saving device of the present invention analysis chart of exerting oneself, be analyzed as follows: the work-saving device angle out of strength is 90 ° during hydraulic mobile lifting platform initial rise of the present invention, use more than one work-saving device to act on the connecting rod between topmost a pair of inboard scissors rod that is parallel to each other, and make four end points of scissors rod stressed, firmly evenly, be symmetrically distributed, carry out force analysis;
P=G/n/sin90 °=1/4/1=0.25 ton
By on learn that stressed 0.25 ton of every scissors rod is when being existing scissors rod initial rise stressed 1/4th;
The scissors rod that raises hydraulic mobile lifting platform when work-saving device is to favourable angle, be that the angle of hydraulic actuating cylinder is when reaching 60 °, hydraulic actuating cylinder just begins full-load operation, this moment is except that the loading angle of hydraulic actuating cylinder 5 and scissors rod 2 changes, other condition is identical with existing hydraulic mobile lifting platform, and its force analysis is as follows:
P=G/n/sin60 °=1/2/0.9065=0.55 ton
Above-mentioned scissors rod hoist maximum weighted in the process of the stressed the present invention of being, reduce approximately half than the maximum weighted of existing hydraulic mobile lifting platform.
If move in the altitude range of work-saving device 4 of the present invention, comparable existing installation overloading weighs 4 times; The above each work-saving device 4 can be single or be used simultaneously more than two; each work-saving device 4 is installed on scissors rod 2 inboards and the center line between scissors rod 2 two ends on 8 both sides, chassis; can make 2 stress equalizations of each scissors rod; described each work-saving device 4 is installed on the chassis 8 more laborsaving than other position that is installed in mobile lifting platform; use more convenient; as long as can improve the mobile lifting platform force-bearing situation that initially hoists; described each work-saving device 4 also can be installed in the mobile lifting platform diverse location; work-saving device 4 also has multiple structure; the present invention is not limited to the concrete structure of above-mentioned embodiment; the above only is a preferred implementation of the present invention; their feature can be combined into the multiple technologies scheme easily mutually; protection scope of the present invention should comprise those of ordinary skill in the art under the prerequisite that does not exceed the principle of the invention, some modification and the improvement done.
Claims (10)
1, a kind of hydraulic mobile lifting platform and work-saving device, by vehicle chassis, platform, scissors rod, hydraulic actuating cylinder is formed, and it is characterized in that: (8) go up the peace work-saving device on the chassis.
2, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: at the then interior or two ends of both sides scissors rod (2), be equipped with several work-saving device (4), the lower end of work-saving device (4) is positioned on the chassis (8), the connecting rod (3) between the relative scissors rod of uppermost pair of parallel (2) can be withstood in its upper end, or withstands on the flat-bed bottom.
3, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: the oil transportation person in charge (20) of oil pump (18) outlet is connected the bottom of work-saving device (4) and feeds in its cylinder, and the bottom that (7) connection hydraulic actuating cylinders (5) are responsible in the oil transportation on work-saving device (4) top also feeds in its cylinder.
4, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device is characterized in that: the bottom peace boiler check valve (12) of work-saving device (4), the end in addition of boiler check valve (12) connects oil transportation and is responsible for (20).
5, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: at the bottom of work-saving device (4) peace electromagnetic valve (11), the end in addition of electromagnetic valve (11) connects oil return pipe (16), and the end in addition of oil return pipe (16) connects fuel tank (17).
6, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device is characterized in that: the oil transportation looped pipeline (19) of oil pump (18) outlet connects the bottom of hydraulic actuating cylinder (5) and feeds in its cylinder.
7, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: at the bottom of hydraulic actuating cylinder (5) peace boiler check valve (6), boiler check valve (10), the end in addition of boiler check valve (6) connects oil transportation looped pipeline (19), and the end in addition of boiler check valve (10) connects oil transportation and is responsible for (7).
8, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: at the bottom of hydraulic actuating cylinder (5) peace electromagnetic valve (9), the end in addition of electromagnetic valve (9) connects oil return pipe (15), and the end in addition of oil return pipe (15) connects fuel tank (17).
9, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device, it is characterized in that: parallel relative several scissors rods (2) two ends, both sides, by connecting rod (3) end of several scissors rods of both sides (2) is connected, hydraulic actuating cylinder (21) level is installed on the double-type connecting rod (3), the oil transportation on work-saving device (4) top is responsible for the head of (7) connection hydraulic actuating cylinders (21) and is fed in its cylinder, the oil transportation looped pipeline (19) of oil pump (18) outlet connects the head of hydraulic actuating cylinder (21) and feeds in its cylinder, and the afterbody of hydraulic actuating cylinder (21) has deflation hole (22).
10, a kind of hydraulic mobile lifting platform according to claim 1 and work-saving device is characterized in that: the head peace electromagnetic valve (9) of hydraulic actuating cylinder (21) cylindrical shell, the oil return pipe (15) that the end in addition of electromagnetic valve (9) is pacified is connected with fuel tank (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101696433A CN101391733A (en) | 2008-07-25 | 2008-10-03 | Hydraulic mobile lifting platform and labor-saving apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820026334.6 | 2008-07-25 | ||
| CN200820026334 | 2008-07-25 | ||
| CNA2008101696433A CN101391733A (en) | 2008-07-25 | 2008-10-03 | Hydraulic mobile lifting platform and labor-saving apparatus |
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| CN101391733A true CN101391733A (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101696433A Pending CN101391733A (en) | 2008-07-25 | 2008-10-03 | Hydraulic mobile lifting platform and labor-saving apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032948A (en) * | 2015-03-17 | 2016-10-19 | 中国电力工程顾问集团华北电力设计院有限公司 | Thermal insulation system of trough type solar heat-collecting tube |
| CN107052084A (en) * | 2017-06-25 | 2017-08-18 | 苏州金钜松机电有限公司 | A kind of copper wire intermediate drawing upper lower burrs load wagon |
| CN107265069A (en) * | 2017-06-25 | 2017-10-20 | 苏州金钜松机电有限公司 | A kind of wire placing device for medium wire drawing |
| CN107265367A (en) * | 2017-06-30 | 2017-10-20 | 无锡威奥液压机电设备有限公司 | A kind of small-sized hydraulic hoistable platform |
| CN107572443A (en) * | 2017-10-14 | 2018-01-12 | 福州大学 | A kind of heavily loaded ultralow spacing fork hydraulic lift and its method of work |
| CN108360415A (en) * | 2018-01-05 | 2018-08-03 | 北汽福田汽车股份有限公司 | Lifting gear and jacking system applied to massif |
| EP3438002A1 (en) * | 2017-08-02 | 2019-02-06 | Markus Penetsdorfer | Lifting vehicle for transporting persons in the airport area |
| CN109533598A (en) * | 2019-01-16 | 2019-03-29 | 国网江苏省电力有限公司扬州供电分公司 | A kind of insulated target week switch cabinet |
| CN111285304A (en) * | 2020-02-19 | 2020-06-16 | 蒋倩倩 | Mine lifting equipment with higher security performance |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032948A (en) * | 2015-03-17 | 2016-10-19 | 中国电力工程顾问集团华北电力设计院有限公司 | Thermal insulation system of trough type solar heat-collecting tube |
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| CN107052084A (en) * | 2017-06-25 | 2017-08-18 | 苏州金钜松机电有限公司 | A kind of copper wire intermediate drawing upper lower burrs load wagon |
| CN107265069A (en) * | 2017-06-25 | 2017-10-20 | 苏州金钜松机电有限公司 | A kind of wire placing device for medium wire drawing |
| CN107265367A (en) * | 2017-06-30 | 2017-10-20 | 无锡威奥液压机电设备有限公司 | A kind of small-sized hydraulic hoistable platform |
| EP3438002A1 (en) * | 2017-08-02 | 2019-02-06 | Markus Penetsdorfer | Lifting vehicle for transporting persons in the airport area |
| CN107572443A (en) * | 2017-10-14 | 2018-01-12 | 福州大学 | A kind of heavily loaded ultralow spacing fork hydraulic lift and its method of work |
| CN108360415A (en) * | 2018-01-05 | 2018-08-03 | 北汽福田汽车股份有限公司 | Lifting gear and jacking system applied to massif |
| CN109533598A (en) * | 2019-01-16 | 2019-03-29 | 国网江苏省电力有限公司扬州供电分公司 | A kind of insulated target week switch cabinet |
| CN111285304A (en) * | 2020-02-19 | 2020-06-16 | 蒋倩倩 | Mine lifting equipment with higher security performance |
| CN111285304B (en) * | 2020-02-19 | 2021-10-22 | 湖北龙蟒磷化工有限公司 | Mine lifting equipment with higher security performance |
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