CN114148949A - Automatic change lift platform - Google Patents
Automatic change lift platform Download PDFInfo
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- CN114148949A CN114148949A CN202111426898.5A CN202111426898A CN114148949A CN 114148949 A CN114148949 A CN 114148949A CN 202111426898 A CN202111426898 A CN 202111426898A CN 114148949 A CN114148949 A CN 114148949A
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- sliding
- lifting platform
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- 230000008859 change Effects 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000000670 limiting effect Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 29
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an automatic lifting platform, which comprises: the safety device comprises a lifting platform, a safety wheel assembly, an upper guide wheel assembly, a lower guide wheel assembly, a lifting hydraulic cylinder, an upper bolt mechanism, a lower bolt mechanism and a guide rail; the lifting platform is of a structure with two symmetrical ends, the two ends of the lifting platform are provided with upper trusses, and the two ends of the lifting platform are respectively provided with a guide rail; an upper guide wheel assembly, a safety wheel assembly and a lower guide wheel assembly which are matched with the guide rail are sequentially arranged on one side, opposite to the guide rail, of each upper truss from top to bottom; the safety wheel assembly, the upper guide wheel assembly and the lower guide wheel assembly are positioned on different sides of the guide rail; the lower bolt mechanism is fixed on the guide rail, the cylinder body end of the lifting hydraulic cylinder is installed on the lower bolt mechanism, the cylinder rod end is provided with the upper bolt mechanism, the upper bolt mechanism and the lower bolt mechanism are respectively provided with a hydraulic cylinder I and a hydraulic cylinder II, and the hydraulic cylinders I and the hydraulic cylinder II are respectively used for automatically controlling the sliding bolt I in the upper bolt mechanism and the sliding bolt II in the lower bolt mechanism to be inserted into or withdrawn from the guide rail relatively.
Description
Technical Field
The invention relates to the technical field of tower lifting platforms, in particular to an automatic lifting platform.
Background
The lifting platform is a common lifting component for the launching tower, and the lifting platform is generally lifted and lowered by a bolt lifting mechanism. In actual production, the lifting platform can be stopped at a required position within a certain height range, and the lifting platform can be reliably locked. The traditional tower lifting platform is operated manually, the labor intensity is high, the efficiency is low, the technology is old and backward, the technology is not suitable for the improvement of the automation technology level, and the requirements of innovation, development and actual operation of the current tower technology cannot be met.
Therefore, it is an object of the present invention to provide a platform which is low in labor intensity and can realize automatic lifting.
Disclosure of Invention
In view of the above, the invention provides an automatic lifting platform, which has the characteristics of convenience in operation, capability of realizing automatic lifting and convenience in operation and maintenance, and can effectively solve the problems that the existing lifting platform is lifted by manpower, high in labor intensity, low in efficiency and inconvenient for later maintenance.
The technical scheme of the invention is as follows: an automated lifting platform comprising: the safety device comprises a lifting platform, a safety wheel assembly, an upper guide wheel assembly, a lower guide wheel assembly, a lifting hydraulic cylinder, an upper bolt mechanism, a lower bolt mechanism and a guide rail;
the lifting platform is of a structure with two symmetrical ends, the two ends of the lifting platform are provided with upper trusses, and the two ends of the lifting platform are respectively provided with a guide rail; an upper guide wheel assembly, a safety wheel assembly and a lower guide wheel assembly which are matched with the guide rail are sequentially arranged on one side, opposite to the guide rail, of each upper truss from top to bottom; the safety wheel assembly, the upper guide wheel assembly and the lower guide wheel assembly are positioned on different sides of the guide rail and used for guiding the lifting platform to move up and down along the guide rail, and meanwhile, the safety wheel assembly is also used for limiting the deformation of the upper truss relative to the guide rail;
the lower bolt mechanism is fixed on the guide rail, the cylinder body end of the lifting hydraulic cylinder is installed on the lower bolt mechanism, the cylinder rod end is provided with the upper bolt mechanism, the upper bolt mechanism and the lower bolt mechanism are respectively provided with a hydraulic cylinder I and a hydraulic cylinder II, and the upper bolt mechanism and the lower bolt mechanism are respectively used for automatically controlling the insertion or the withdrawal of a sliding bolt I in the upper bolt mechanism and a sliding bolt II in the lower bolt mechanism relative to the guide rail so as to drive the lifting platform to lift in a stepping mode.
Preferably, the elevating platform further comprises: the device comprises a platform plate and guide posts, wherein the platform plate is a rectangular plate; the upper trusses are of a rectangular truss structure, two opposite sides of each upper truss are respectively provided with an upright post on which a guide post is fixed, the two guide posts are positioned on the same transverse side of the platform plate, and meanwhile, the lower ends of the guide posts are longer than the corresponding upright posts; wherein, each upper truss is provided with four upright posts which stand on the platform plate.
Preferably, the longitudinal ends of one transverse side of the platform plate are respectively provided with a rectangular notch, and the two rectangular notches are positioned between the two upper trusses and used for abdicating the guide rails arranged at the longitudinal ends of the platform plate; a connecting plate is arranged on the platform plate at the corresponding position of each rectangular notch, and the guide column is connected with the connecting plate at the corresponding side through a mounting plate III; wherein, be equipped with four mounting panels from last to down on every guide post, be respectively: the mounting plates I and III on the two guide posts are opposite to each other, and the mounting plates II and III on the two guide posts are coplanar and parallel to the longitudinal direction of the platform plate; meanwhile, the mounting plate I, the mounting plate II and the mounting plate III are positioned above the platform plate, and the mounting plate IV is positioned below the platform plate.
Preferably, the safety wheel assembly is fixed with the mounting plate II, the upper guide wheel assembly is fixed with the mounting plate I, and the lower guide wheel assembly is fixed with the mounting plate IV.
Preferably, each guide rail is provided with a groove-shaped raceway along two longitudinal sides of the platform plate, and each groove-shaped raceway extends along the height direction of the guide rail; each guide rail is provided with two mutually parallel rail plates extending to the platform plate along the transverse direction of the platform plate, each rail plate is uniformly provided with stepping holes along the height direction, and the end part of each rail plate is provided with an outward flange as a limiting plate; wherein, each step hole is a waist round hole with the length direction parallel to the height direction of the track slab.
Preferably, the upper latch mechanism further comprises: the device comprises a base, a fork plate I, a support rod I and a spring I; the outer surface of the cylinder body of the hydraulic cylinder I is fixed at one end of the base, the head of the cylinder rod is connected with the flat end of the fork plate I, the other end of the base is provided with a through hole, the axial direction of the through hole is vertical to the cylinder rod of the hydraulic cylinder I, two sliding bolts I are respectively arranged at two axial ends of the through hole, each sliding bolt I is in sliding fit with the through hole, the two sliding bolts I are connected through a spring I, a waist round hole communicated with the through hole is arranged above the through hole corresponding to the middle part of each sliding bolt I, the two support rods I penetrate through the corresponding waist round holes and are fixed on the corresponding sliding bolts I, the cylinder rod end of the hydraulic cylinder I extends to drive two inclined planes at the fork end of the fork plate I to push the support rods I to slide along the corresponding waist round holes, the two sliding bolts I are driven to move oppositely to compress the spring I, and the sliding bolts I are retracted into the base, so that the sliding bolts I are pulled out from the corresponding stepping holes in the track plates of the guide rails; on the contrary, when the rod end of the hydraulic cylinder I retracts, the fork plate I moves along with the hydraulic cylinder I, and the two sliding bolts I are bounced open under the action of the elastic force of the spring I to extend out of the base and then inserted into corresponding stepping holes in the track plate of the guide rail; wherein, the appearance of fork board I is the U-shaped, and the opening part is V-arrangement opening.
Preferably, the bases on the two sides of the fork plate I are respectively provided with a limiting wheel which is in rolling fit with the limiting plates of the guide rails.
Preferably, the lower latch mechanism further comprises: the mounting seat, the fork plate II, the support rod II and the spring II are arranged; the cylinder body end of a hydraulic cylinder II is installed on an installation seat, the cylinder rod end is connected with the flat end of a fork plate II, the lower end of the installation seat is provided with a sliding sleeve, the channel direction of the sliding sleeve is perpendicular to the cylinder rod end of the hydraulic cylinder II, two sliding bolts II are installed at two ends of the sliding sleeve respectively, the two sliding bolts II are in sliding fit with the sliding sleeve and are connected through springs II, the sliding sleeve is provided with two oval holes communicated with the sliding sleeve, two support rods II penetrate through the corresponding oval holes respectively and are fixed on the corresponding sliding bolts II, and two inclined planes at the fork end of the fork plate II can push the support rods II to slide along the corresponding oval holes; the fork plate II is U-shaped, and the opening is V-shaped.
Preferably, the tip of slip bolt I and slip bolt II has all set up flange structure, and when slip bolt I and slip bolt II inserted the step-by-step downthehole and when under the effect of automatic lift platform total body weight that correspond on the track board of guide rail, be used for preventing to extract slip bolt I and/or slip bolt II under the maloperation condition.
Preferably, the safety wheel assembly comprises: the safety wheel is connected to the double-lug seats in a pin mode, and the pin shaft is parallel to the L-shaped support at the end where the double-lug seats are located.
Has the advantages that:
1. the automatic lifting platform is used for solving the problems that the existing lifting platform is low in automation degree, depends on manpower and is low in efficiency, and the lifting hydraulic cylinder is used for controlling the upper bolt mechanism and the lower bolt mechanism to step in order so as to drive the lifting platform to follow up, so that the automatic lifting of the lifting platform is realized, the operation and maintenance are convenient, and the operation efficiency and the safe operation capacity are improved; the lifting platform is assembled in a modularized mode, so that the mounting step is simplified, the mounting time is greatly shortened, and the working efficiency is further improved; meanwhile, the lifting platform is skillfully ensured to move up and down along the guide rail in a straight line through the guiding and limiting effects of the safety wheel assembly, the upper guide wheel assembly and the lower guide wheel assembly, multiple safety measures are guaranteed, and the safety and the reliability of the automatic lifting process can be effectively guaranteed.
2. The specific design of the lifting platform not only ensures the structural symmetry of the whole lifting platform and is convenient for the lifting platform to step stably, but also provides a reliable base for the structural installation of a safety wheel assembly, an upper guide wheel assembly, a lower bolt mechanism and the like.
3. The specific design of the platform plate is beneficial to installing the guide rail in a reasonable range of the lifting platform, and the lifting platform can be conveniently and stably lifted along the guide rail.
4. According to the specific design of the guide rail, on the first hand, the guide rail can be effectively matched with the upper guide wheel assembly, the lower guide wheel assembly and the safety wheel assembly to accurately guide the lifting platform to lift up and down along the guide rail, and meanwhile, the guide rail and the guide column can be integrally embraced by the matching mode of the safety wheel assembly and the guide rail, so that the whole lifting platform is prevented from deforming; in the second aspect, the sliding bolts in the upper bolt mechanism and the lower bolt mechanism can be conveniently inserted and withdrawn, so that the accurate and orderly stepping lifting of the lifting platform is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the automated lifting platform of the present invention.
Fig. 2 is a partial schematic view of fig. 1 (without the guide rail).
Fig. 3 is an enlarged view of a portion of fig. 2.
Fig. 4 is a schematic structural view of the lifting platform of the present invention.
Fig. 5 is a schematic structural view of an upper truss and a guide post according to the present invention.
FIG. 6 is a schematic view of the guide post and the structure connected thereto according to the present invention.
Fig. 7 is a schematic view of the guide rail and the structure matched with the guide rail.
FIG. 8 is a diagram showing the relationship between the hydraulic cylinder and the connecting structure.
Fig. 9 is a top view of the guide rail of the present invention.
Fig. 10 is a schematic structural diagram of the upper latch mechanism of the present invention.
FIG. 11 is a view of the mating relationship of the upper latch mechanism and the guide rail of the present invention.
FIG. 12 is a schematic view of the lower latch mechanism of the present invention.
FIG. 13 is a view of the engagement of the lower latch mechanism with the guide rail of the present invention.
Wherein, 1, the lifting platform; 2. a hydraulic station system; 3. a controller; 4. a safety wheel assembly; 5. an upper guide wheel assembly; 6. a lower guide wheel assembly; 7. a lifting hydraulic cylinder; 8. an upper bolt mechanism; 9. a lower latch mechanism; 10. a guide rail; 1-1. a platform plate; 1-2, upper truss; 1-3, a guide post; 1-11. connecting plate; 1-31. mounting plate I; 1-32. mounting plate II; 1-33. mounting plate III; 1-34. mounting plate IV; 8-1, a base; 8-2, a hydraulic cylinder I; 8-3, a fork plate I; 8-4, supporting rod I; 8-5, sliding the bolt I; 8-6, a limiting wheel; 8-7, a spring I; 9-1, mounting seats; 9-2, a hydraulic cylinder II; 9-3, a fork plate II; 9-4, supporting rod II; 9-5, sliding a bolt II; 9-6. spring II; 10-1. grooved roller path; 10-2. a track slab; and 10-3, limiting plates.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides an automatic lifting platform, has convenient operation, can realize automatic lift and the characteristics of being convenient for operation maintenance, can effectual solution current lifting platform rely on the manpower to realize going up and down, intensity of labour is big, inefficiency and be not convenient for later maintenance's problem.
As shown in fig. 1 and 2, the automated lifting platform includes: the safety device comprises a lifting platform 1, a hydraulic station system 2, a controller 3, a safety wheel assembly 4, an upper guide wheel assembly 5, a lower guide wheel assembly 6, a lifting hydraulic cylinder 7, an upper bolt mechanism 8, a lower bolt mechanism 9 and a guide rail 10;
as shown in fig. 4, the lifting platform 1 is composed of a platform plate 1-1, an upper truss 1-2 and a guide column 1-3; the platform plate 1-1 is a rectangular plate, the upper trusses 1-2 are rectangular truss structures, and the two upper trusses 1-2 are symmetrically arranged on the upper surfaces of the longitudinal two ends of the platform plate 1-1; the opposite sides of the two upper trusses 1-2 are respectively provided with an upright post on which a guide post 1-3 is welded, the two guide posts 1-3 are positioned on the same transverse side of the platform plate 1-1, and meanwhile, the lower ends of the guide posts 1-3 are longer than the corresponding upright posts; wherein, each upper truss 1-2 is provided with four upright posts which stand on the platform plate 1-1;
two rectangular notches are respectively formed in the longitudinal ends of one transverse side of the platform plate 1-1 and located between the two upper trusses 1-2, and are used for providing abdicating space for the guide rails 10 arranged at the two longitudinal ends of the platform plate 1-1; a connecting plate 1-11 is arranged on the platform plate 1-1 at the corresponding position of each rectangular notch, and the guide column 1-3 is connected with the connecting plate 1-11 at the corresponding side through a mounting plate III 1-33; as shown in fig. 5, each guide post 1-3 is provided with four mounting plates from top to bottom, which are respectively: the mounting plates I1-31 (used for mounting and fixing the upper guide wheel assembly 5), the mounting plates II 1-32 (used for mounting and fixing the safety wheel assembly 4), the mounting plates III 1-33 and the mounting plates IV 1-34 (used for mounting and fixing the lower guide wheel assembly 6), the mounting plates I1-31 and the mounting plates IV 1-34 on the two guide posts 1-3 are opposite, and the mounting plates II 1-32 and the mounting plates III 1-33 on the two guide posts 1-3 are coplanar and are parallel to the longitudinal direction of the platform plate 1-1; meanwhile, the mounting plate I1-31, the mounting plate II 1-32 and the mounting plate III 1-33 are positioned above the platform plate 1-1, and the mounting plate IV 1-34 is positioned below the platform plate 1-1;
the hydraulic station system 2 is fixed on the upper surface of one longitudinal end of the platform plate 1-1, is positioned in the inner space of the upper truss 1-2 and is used for providing hydraulic power for the whole automatic lifting platform;
the controller 3 is fixed on the lower surface of the other longitudinal end of the platform plate 1-1 and used for realizing automatic control;
as shown in fig. 3 and 6, a safety wheel assembly 4 is fixedly mounted on the mounting plate ii 1-32 of each guide post 1-3, an upper guide wheel assembly 5 is fixedly mounted on the mounting plate i 1-31 of each guide post 1-3, and a lower guide wheel assembly 6 is fixedly mounted on the mounting plate iv 1-34 of each guide post 1-3; the upper guide wheel assembly 5, the lower guide wheel assembly 6 and the safety wheel assembly 4 roll up and down in a groove-shaped raceway 10-1 of the guide rail 10 through rotatable rollers, and the groove-shaped raceway 10-1 can limit the rollers on the upper guide wheel assembly 5, the lower guide wheel assembly 6 and the safety wheel assembly 4 from derailing, so that the upper guide wheel assembly 5, the lower guide wheel assembly 6 and the safety wheel assembly 4 are ensured to be reliably installed with the guide rail 10; as shown in fig. 9, two sides of each guide rail 10 (along the longitudinal direction of the platform plate 1-1) are respectively provided with a groove-shaped raceway 10-1 extending along the height direction of the guide rail 10, each guide rail 10 extends to the platform plate 1-1 along the transverse direction of the platform plate 1-1 to be provided with two mutually parallel track plates 10-2, each track plate 10-2 is equal to the guide rail 10 in height, each track plate 10-2 is uniformly provided with stepping holes (which are waist round holes with the length direction parallel to the height direction of the track plate 10-2) along the height direction thereof, and the end of each track plate 10-2 is provided with an outward flange (with the outward flange direction parallel to the longitudinal direction of the platform plate 1-1) as a limit plate 10-3;
the lower plug pin mechanism 9 is fixed on the connecting plate 1-11 of the platform plate 1-1, as shown in fig. 8, the upper part of the lower plug pin mechanism 9 is provided with a pin hole which can be in pin connection with the cylinder body end of the lifting hydraulic cylinder 7; an upper plug pin mechanism 8 is installed at the end of the cylinder rod of the lifting hydraulic cylinder 7, as shown in fig. 11, in the extension and retraction process of the lifting hydraulic cylinder 7, the limiting wheel 8-6 of the upper plug pin mechanism 8 can move up and down along the limiting plate 10-3 of the guide rail 10, so that the movement direction and the relative position of the upper plug pin mechanism 8 can be controlled (the limiting plate 10-3 plays roles of up-and-down movement guiding and front-and-back movement limiting on the limiting wheel 8-6, and the front-and-back direction is parallel to the transverse direction of the platform plate 1-1); as shown in fig. 10, the upper latch mechanism 8 includes: the device comprises a base 8-1, a hydraulic cylinder I8-2, a fork plate I8-3, a support rod I8-4, a sliding bolt I8-5, a limiting wheel 8-6 and a spring I8-7; the outer surface of a cylinder body of a hydraulic cylinder I8-2 is fixed at one end of a base 8-1, the head of a cylinder rod is connected with the flat end of a fork plate I8-3 (the appearance of the fork plate is U-shaped, and the opening of the fork plate is a V-shaped opening), the other end of the base 8-1 is provided with a through hole, the axial direction of the through hole is vertical to the cylinder rod of the hydraulic cylinder I8-2, two axial ends of the through hole are respectively provided with a sliding bolt I8-5, each sliding bolt I8-5 is in sliding fit with the through hole, two sliding bolts I8-5 are connected through a spring I8-7 (a pressure spring), a waist circular hole communicated with the through hole is arranged above the through hole corresponding to the middle part of each sliding bolt I8-5 (the length direction is parallel to the axial direction of the through hole), two support rods I8-4 penetrate through the corresponding waist circular holes and are fixed on the corresponding sliding bolts I8-5, the extension of the rod end of the hydraulic cylinder I8-2 can drive the two inclined surfaces of the fork end of the fork plate I8-3 to push the support rod I8-4 to slide along the corresponding waist circular hole, so that the two sliding bolts I8-5 are driven to move oppositely to compress the spring I8-7, the sliding bolts I8-5 are retracted into the base 8-1, and the sliding bolts I8-5 can be pulled out of the corresponding stepping holes in the track plate 10-2 of the guide rail 10; on the contrary, when the rod end of the hydraulic cylinder I8-2 retracts, the fork plate I8-3 moves along with the hydraulic cylinder, and the two sliding bolts I8-5 are bounced open under the action of the elastic force of the spring I8-7 to extend out of the base 8-1 and then inserted into corresponding stepping holes in the track plate 10-2 of the guide rail 10; the bases 8-1 on the two sides of the fork plate I8-3 are respectively provided with a limiting wheel 8-6 which is in rolling fit with a limiting plate 10-3 of the guide rail 10;
as shown in fig. 12, the lower latch mechanism 9 includes: the device comprises a mounting base 9-1, a hydraulic cylinder II 9-2, a fork plate II 9-3, a support rod II 9-4, a sliding bolt II 9-5 and a spring II 9-6; the cylinder body end of the hydraulic cylinder II 9-2 is installed on the installation seat 9-1, the cylinder rod end is connected with the flat end of a fork plate II 9-3 (the appearance of the hydraulic cylinder II 9-3 is U-shaped, and the opening part of the cylinder rod end is a V-shaped opening), the lower end of the installation seat 9-1 is provided with a sliding sleeve, the channel direction of the sliding sleeve is vertical to the cylinder rod end of the hydraulic cylinder II 9-2, two ends of the sliding sleeve are respectively provided with a sliding bolt II 9-5, the two sliding bolts II 9-5 are both in sliding fit with the sliding sleeve and are connected through springs II 9-6, the sliding sleeve is provided with two waist circular holes communicated with the sliding sleeve, two support rods II 9-4 respectively penetrate through the corresponding waist circular holes to be fixed on the corresponding sliding bolts II 9-5, and two inclined planes at the fork end of the fork plate II 9-3 can push the support rods II 9-4 to slide along the corresponding waist circular holes;
as shown in fig. 13, the principle of the inserting and extracting action of the lower latch mechanism 9 is the same as that of the upper latch mechanism 8;
the lifting hydraulic cylinder 7, the hydraulic cylinder I8-2 and the hydraulic cylinder II 9-2 are all connected with the hydraulic station system 2 through hydraulic pipelines;
the lifting hydraulic cylinder 7 is internally provided with a displacement sensor for monitoring the telescopic displacement of the cylinder rod of the hydraulic cylinder 7 in real time, and the displacement is transmitted to the controller, so that the automatic control is realized conveniently.
In the embodiment, the end parts of the sliding bolt I8-5 and the sliding bolt II 9-5 are respectively provided with a flange structure, when the sliding bolt I8-5 and the sliding bolt II 9-5 are inserted into corresponding stepping holes on the track plate 10-2 of the guide rail 10 and under the action of the total gravity of the automatic lifting platform, the sliding bolt I8-5 and/or the sliding bolt II 9-5 under the stress condition cannot be pulled out by the acting force of a small amount of extension or retraction of the cylinder bodies of the hydraulic cylinder I8-2 and the hydraulic cylinder II 9-2, so that the dangerous condition that the sliding bolt I8-5 and/or the sliding bolt II 9-5 are accidentally pulled out due to misoperation can be prevented, and the safety is greatly ensured.
In this embodiment, as shown in fig. 7, the safety wheel assembly 4 includes: the safety wheel assembly 4 is positioned at the different side of the guide rail 10 with the upper guide wheel assembly 5 and the lower guide wheel assembly 6, so that the guide rail 10 is limited by the safety wheel assembly 4, the whole structure of the automatic lifting platform is prevented from deforming, and the upper guide wheel assembly 5 and the lower guide wheel assembly 6 can move linearly up and down along the guide rail 10.
The working principle of the automatic lifting platform is as follows: when the lifting mechanism needs to ascend, a cylinder rod of the lifting hydraulic cylinder 7 can be firstly extended out, a sliding bolt I8-5 of the upper bolt mechanism 8 is pushed to align to a corresponding waist circular hole on the guide rail 10, then the cylinder rod of the hydraulic cylinder I8-2 is retracted, the sliding bolt I8-5 is driven to be reliably inserted into the corresponding waist circular hole on the track plate 10-2 of the guide rail 10, and then a little cylinder rod of the lifting hydraulic cylinder 7 is retracted to ensure that the upper bolt mechanism 8 can bear force reliably; the lower bolt mechanism 9 is relieved from stress and is suspended properly, then the cylinder rod of the hydraulic cylinder II 9-2 is operated to extend out, the sliding bolt II 9-5 is completely retracted, and the pin joint between the sliding bolt II 9-5 and the guide rail 10 is released; then the length of the cylinder rod of the lifting hydraulic cylinder 7 is continuously contracted to a proper position; retracting the cylinder rod of the hydraulic cylinder II 9-2, popping two sliding bolts II 9-5 under the action of a spring II 9-6, inserting the two sliding bolts II 9-5 into corresponding stepping holes in the track plate 10-2 of the guide rail 10, extending a little of the cylinder rod of the lifting hydraulic cylinder 7, fully acting the gravity of the automatic lifting platform on the lower bolt mechanism 9 again under the action of gravity, suspending the sliding bolt I8-5 of the upper bolt mechanism 8 at the same time, extending the cylinder rod of the hydraulic cylinder I8-2 to withdraw the sliding bolt I8-5, continuously extending the cylinder rod of the lifting hydraulic cylinder 7 to a proper position, and repeating the steps to realize stepping lifting; the descending process is the reverse of the ascending process;
during the working process, a displacement signal is detected by a displacement sensor and transmitted to the controller 3, the controller 3 can determine the actual position of the lifting platform 1 according to the initial position and the displacement, and then the lifting hydraulic cylinder 7, the hydraulic cylinder I8-2 and the hydraulic cylinder II 9-2 are controlled to perform corresponding actions according to the preset stepping amount in the controller so as to drive the lifting platform 1 to step, so that the automatic lifting and descending operation of the lifting platform 1 can be realized.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automated lifting platform, comprising: the safety device comprises a lifting table (1), a safety wheel assembly (4), an upper guide wheel assembly (5), a lower guide wheel assembly (6), a lifting hydraulic cylinder (7), an upper bolt mechanism (8), a lower bolt mechanism (9) and a guide rail (10);
the lifting platform (1) is of a structure with two symmetrical ends, the two ends of the lifting platform are provided with upper trusses (1-2), and the two ends of the lifting platform (1) are respectively provided with a guide rail (10); an upper guide wheel assembly (5), a safety wheel assembly (4) and a lower guide wheel assembly (6) which are matched with the guide rail (10) are sequentially arranged on one side, opposite to the guide rail (10), of each upper truss (1-2) from top to bottom; the safety wheel assembly (4), the upper guide wheel assembly (5) and the lower guide wheel assembly (6) are positioned on different sides of the guide rail (10) and used for guiding the lifting platform (1) to move up and down along the guide rail (10), and meanwhile, the safety wheel assembly (4) is also used for limiting the deformation of the upper truss (1-2) relative to the guide rail (10);
the lower bolt mechanism (9) is fixed on the guide rail (10), the cylinder body end of the lifting hydraulic cylinder (7) is installed on the lower bolt mechanism (9), the cylinder rod end is provided with the upper bolt mechanism (8), the upper bolt mechanism (8) and the lower bolt mechanism (9) are respectively provided with a hydraulic cylinder I (8-2) and a hydraulic cylinder II (9-2) which are respectively used for automatically controlling the insertion or the withdrawal of the sliding bolt I (8-5) in the upper bolt mechanism (8) and the sliding bolt II (9-5) in the lower bolt mechanism (9) relative to the guide rail (10) so as to drive the lifting platform (1) to lift in a stepping mode.
2. The automated lifting platform according to claim 1, characterized in that the lifting platform (1) further comprises: the device comprises a platform plate (1-1) and guide columns (1-3), wherein the platform plate (1-1) is a rectangular plate; the upper trusses (1-2) are of rectangular truss structures, two opposite sides of each upper truss (1-2) are respectively provided with an upright post on which a guide column (1-3) is fixed, the two guide columns (1-3) are positioned on the same transverse side of the platform plate (1-1), and meanwhile, the lower ends of the guide columns (1-3) are longer than the corresponding upright posts; wherein, each upper truss (1-2) is provided with four upright posts which stand on the platform plate (1-1).
3. The automatic lifting platform of claim 2, wherein a rectangular notch is respectively formed at the longitudinal ends of one transverse side of the platform plate (1-1), and the two rectangular notches are positioned between the two upper trusses (1-2) and used for avoiding guide rails (10) arranged at the longitudinal ends of the platform plate (1-1); a connecting plate (1-11) is arranged on the platform plate (1-1) at the corresponding position of each rectangular notch, and the guide column (1-3) is connected with the connecting plate (1-11) at the corresponding side through a mounting plate III (1-33); wherein, every guide post (1-3) is equipped with four mounting panels from top to bottom, do respectively: the mounting plates I (1-31), the mounting plates II (1-32), the mounting plates III (1-33) and the mounting plates IV (1-34), the mounting plates I (1-31) and the mounting plates IV (1-34) on the two guide columns (1-3) are opposite, and the mounting plates II (1-32) and the mounting plates III (1-33) on the two guide columns (1-3) are coplanar and are parallel to the longitudinal direction of the platform plate (1-1); meanwhile, the mounting plates I (1-31), II (1-32) and III (1-33) are positioned above the platform plate (1-1), and the mounting plates IV (1-34) are positioned below the platform plate (1-1).
4. The automated lifting platform according to claim 3, wherein the safety wheel assembly (4) is fixed to the mounting plate II (1-32), the upper guide wheel assembly (5) is fixed to the mounting plate I (1-31), and the lower guide wheel assembly (6) is fixed to the mounting plate IV (1-34).
5. The automated lifting platform according to claim 2, characterized in that each guide rail (10) is provided with a groove-shaped raceway (10-1) along both longitudinal sides of the platform plate (1-1), and each groove-shaped raceway (10-1) extends along the height direction of the guide rail (10); each guide rail (10) extends towards the platform plate (1-1) along the transverse direction of the platform plate (1-1) and is provided with two mutually parallel track plates (10-2), each track plate (10-2) is uniformly provided with stepping holes along the height direction, and the end part of each track plate (10-2) is provided with an outward flange as a limit plate (10-3); wherein, each stepping hole is a waist round hole with the length direction parallel to the height direction of the track plate (10-2).
6. The automated lifting platform according to claim 5, wherein the upper latch mechanism (8) further comprises: the device comprises a base (8-1), a fork plate I (8-3), a support rod I (8-4) and a spring I (8-7); the outer surface of a cylinder body of a hydraulic cylinder I (8-2) is fixed at one end of a base (8-1), the head of a cylinder rod is connected with the flat end of a fork plate I (8-3), the other end of the base (8-1) is provided with a through hole, the axial direction of the through hole is perpendicular to the cylinder rod of the hydraulic cylinder I (8-2), two axial ends of the through hole are respectively provided with a sliding bolt I (8-5), each sliding bolt I (8-5) is in sliding fit with the through hole, the two sliding bolts I (8-5) are connected through a spring I (8-7), a oval hole communicated with the through hole is arranged above the through hole corresponding to the middle of each sliding bolt I (8-5), two support rods I (8-4) penetrate through the corresponding oval holes to be fixed on the corresponding sliding bolts I (8-5), and the cylinder rod end of the hydraulic cylinder I (8-2) extends to drive two inclined planes at the fork end of the fork plate I (8-3) to push support a support The rod I (8-4) slides along the corresponding waist circular hole, so that the two sliding bolts I (8-5) are driven to move oppositely to compress the spring I (8-7), the sliding bolts I (8-5) are retracted into the base (8-1), and the sliding bolts I (8-5) are pulled out from the corresponding stepping holes in the track plate (10-2) of the guide rail (10); on the contrary, when the rod end of the hydraulic cylinder I (8-2) retracts, the fork plate I (8-3) moves along with the hydraulic cylinder I, and the two sliding bolts I (8-5) are bounced off under the action of the elastic force of the spring I (8-7) to extend out of the base (8-1) and then inserted into corresponding stepping holes in the track plate (10-2) of the guide rail (10); wherein, the appearance of fork board I (8-3) is the U-shaped, and the opening part is V-arrangement opening.
7. The automated lifting platform according to claim 6, wherein the bases (8-1) on both sides of the fork plate I (8-3) are respectively provided with a limiting wheel (8-6) which is in rolling fit with the limiting plate (10-3) of the guide rail (10).
8. The automated lifting platform of claim 6, wherein the lower latch mechanism (9) further comprises: the mounting seat (9-1), the fork plate II (9-3), the support rod II (9-4) and the spring II (9-6); the cylinder body end of the hydraulic cylinder II (9-2) is installed on the installation seat (9-1), the cylinder rod end is connected with the flat end of the fork plate II (9-3), the lower end of the installation seat (9-1) is provided with a sliding sleeve, the channel direction of the sliding sleeve is perpendicular to the cylinder rod end of the hydraulic cylinder II (9-2), two ends of the sliding sleeve are respectively provided with a sliding bolt II (9-5), the two sliding bolts II (9-5) are in sliding fit with the sliding sleeve and are connected through a spring II (9-6), the sliding sleeve is provided with two oval holes communicated with the sliding sleeve, the two support rods II (9-4) respectively penetrate through the corresponding oval holes to be fixed on the corresponding sliding bolts II (9-5), and the two inclined planes at the fork end of the fork plate II (9-3) can push the support rods II (9-4) to slide along the corresponding oval holes; wherein the appearance of the fork plate II (9-3) is U-shaped, and the opening part is a V-shaped opening.
9. The automated lifting platform of claim 8, wherein the sliding pins i (8-5) and ii (9-5) are provided with flange structures at the ends thereof, and when the sliding pins i (8-5) and ii (9-5) are inserted into corresponding stepped holes on the track plate (10-2) of the guide rail (10) and under the action of the total gravity of the automated lifting platform, the flange structures are used for preventing the sliding pins i (8-5) and/or ii (9-5) from being pulled out in case of misoperation.
10. The automated lifting platform according to any one of claims 2 to 9, characterized in that the safety wheel assembly (4) comprises: one end of the L-shaped support is fixed on the guide columns (1-3), the other end of the L-shaped support is provided with a double-lug seat, the safety wheel is connected to the double-lug seat in a pin mode, and the pin shaft is parallel to the L-shaped support at the end where the double-lug seat is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426898.5A CN114148949A (en) | 2021-11-28 | 2021-11-28 | Automatic change lift platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426898.5A CN114148949A (en) | 2021-11-28 | 2021-11-28 | Automatic change lift platform |
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| Publication Number | Publication Date |
|---|---|
| CN114148949A true CN114148949A (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111426898.5A Pending CN114148949A (en) | 2021-11-28 | 2021-11-28 | Automatic change lift platform |
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| CN (1) | CN114148949A (en) |
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| CN217076854U (en) * | 2021-11-28 | 2022-07-29 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Automatic change lift platform |
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- 2021-11-28 CN CN202111426898.5A patent/CN114148949A/en active Pending
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|---|---|---|---|---|
| GB643885A (en) * | 1947-10-20 | 1950-09-27 | Production Facilities Films Lt | An improved mobile tower for supporting cameras, optical projectors or other apparatus used in the cinematographic film making industry |
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