CN110104594A - A kind of hydraulic air lift - Google Patents
A kind of hydraulic air lift Download PDFInfo
- Publication number
- CN110104594A CN110104594A CN201910376109.8A CN201910376109A CN110104594A CN 110104594 A CN110104594 A CN 110104594A CN 201910376109 A CN201910376109 A CN 201910376109A CN 110104594 A CN110104594 A CN 110104594A
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- cylinder
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- hinged
- locking
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/40—Maintaining or repairing aircraft
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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
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
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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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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Actuator (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The present invention provides a kind of hydraulic air lifts, it includes bottom bay, the top of the bottom bay is equipped with operation at top platform by scissors fork elevating mechanism supports, hydraulic pressure cylinder assembly for jacking to operation at top platform is installed in the scissors fork elevating mechanism, it is equipped on the hydraulic pressure cylinder assembly for carrying out self-locking oil cylinder mechanical lock mechanism to it, the hydraulic pressure cylinder assembly is connected with hand pump configuration and provides hydraulic power to drive the jacking of hydraulic cylinder component to act.The lifting cylinder structure of this lift uses Purely mechanical locking device, and oil pipe bursts suddenly or oil cylinder bottom falls off Shi Junneng for piston rod mechanical caging suddenly when occurring, and platform is avoided to fall suddenly and cause safety accident.
Description
Technical field
The present invention relates to aircraft repair apparatus field, especially a kind of hydraulic air lift.
Background technique
Hydraulic air lift is mainly that ground crew completes the maintenance of equipment of an aircraft high position and provides close to platform or as tearing open
Fill the support platform of airborne equipment.The existing hydraulic companion ladder of army is mostly steel structure, and jacking power relies primarily on hydraulic
Oil cylinder realizes that hydraulic cylinder is mainly used as the jacking power device of hoistable platform.
The traditional fall arrest mode of hoistable platform is mainly the oil port installation explosion-proof valve in hydraulic cylinder at present, works as oil pipe
Oil return line truncation is closed for oil liquid to be enclosed in the cylinder barrel of hydraulic cylinder or by oil circuit by explosion-proof valve events when explosion suddenly
Throttling, which reduces return flow, prevents platform from falling suddenly, but if hydraulic cylinder occur cylinder bottom suddenly fall off etc. failures when if
Anti- function of falling suddenly is not had.And then security risk is brought to the operating personnel of platform operations.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of hydraulic air lift, the lifting cylinder knot of this lift
Structure uses Purely mechanical locking device, and when occurring, oil pipe burst suddenly or the oil cylinder bottom Shi Junneng that falls off suddenly is mechanical by piston rod
Locking, avoids platform from falling suddenly and cause safety accident.
In order to realize above-mentioned technical characteristic, the object of the present invention is achieved like this: a kind of hydraulic air lift, it
Including bottom bay, the top of the bottom bay is equipped with operation at top platform by scissors fork elevating mechanism supports, described to cut
Hydraulic pressure cylinder assembly for jacking to operation at top platform is installed on fork elevating mechanism, is installed on the hydraulic pressure cylinder assembly useful
In carrying out self-locking oil cylinder mechanical lock mechanism to it, the hydraulic pressure cylinder assembly is connected with hand pump configuration and provides hydraulic power
Drive the jacking movement of hydraulic cylinder component.
The bottom bay includes under(-)chassis, and the bottom four corners of the under(-)chassis are equipped with lower margin idler wheel, in bottom
Screw support is equipped with by bracket on the two sidewalls of frame, is pacified in the head side wall of the under(-)chassis by the way that connection frame is fixed
Equipped with ladder, the side of ladder is equipped with handrail, is hinged with draw bar on the tail portion side wall of under(-)chassis.
The scissors fork elevating mechanism includes the first scissors rod being hinged at the top of bottom bay by hinged seat, and described first
The center of scissors rod and the second scissors rod is hinged and connected by scissor main shaft, and the top of second scissors rod and operation at top are flat
Platform is hinged and connected by hinged seat；The other end of first scissors rod and the second scissors rod passes through idler wheel respectively and is mounted on top
Gyro wheeling concrete chuting composition on portion's job platform and bottom bay is slidably matched；It is solid between first scissors rod and the second scissors rod
Dingan County is equipped with the bottom for installing hydraulic pressure cylinder assembly and installs crossbeam and top installation crossbeam.
The operation at top platform includes platform framework, platform board is equipped on the platform framework, in platform framework
Top periphery is fixedly installed with platform guardrail, and multiple instrument cases are fixedly installed in the top sidewall of the platform guardrail.
The hydraulic pressure cylinder assembly uses single-action hydraulic cylinder comprising the bottom of cylinder barrel, the cylinder barrel passes through oil cylinder bottom cover
It is packaged with cylinder bottom plug, cylinder barrel is internally provided with piston rod, and the end of piston rod is equipped with piston, fixes at the top of cylinder barrel
There is locking nut, upper cylinder cover is fixed at the top of locking nut, the oil cylinder for locking piston rod is installed on upper cylinder cover
Mechanical lock mechanism；The center of the piston rod is machined with oil duct, the oil duct and the fuel inlet fitting phase that piston rod end is arranged in
Connection, the fuel inlet fitting are connected with the flowline of hand pump configuration；The oil cylinder mechanical lock mechanism and processing are in locking piston
Thread groove on bar matches.
The outside of the cylinder bottom plug is provided with the first sealing ring of multiple tracks；It is close that the outside of the piston is provided with multiple tracks second
Seal, and guide ring is provided between the second sealing ring of twice.
The oil cylinder machinery lock set includes outer housing, and the inside of outer housing is equipped with and is lived by thrust ball bearing support
The screw that thread groove on stopper rod matches is provided with ratchet in the outside of screw, and ratchet is matched with pawl, and pawl passes through hinge
Connecting bolt is hinged in the ear mount on shell body sidewall, and the top of the screw is encapsulated in inside outer housing by gland, described
Thrust ball bearing is provided between gland and screw；The spine for matching with pawl is machined on the side wall of the outer housing
Pawl mating groove；On the link bolt, and locking torsional spring is provided between outer housing and pawl.
The tail portion of the pawl is hinged with the lever unlocking mechanism for driving its rotation unlock, the lever unlock
Mechanism includes being hinged on the articulated joint of pawl tail portion, and unlock bracing wire is connected in the articulated joint, described to unlock the another of bracing wire
The notch on limit plate is held, the limit plate is fixed on the side wall of outer housing；The other end and use of the unlock bracing wire
It is connected in the manual thread drawing mechanism for driving it to pull.
The manual thread drawing mechanism includes mounting base, and the mounting base is fixedly mounted on operation at top platform,
It is symmetrically installed with locking positioning plate at the top of mounting base, has rotating cylinder set by handle bolted splice on the locking positioning plate,
The top slide of the turning set is fitted with rotational handle, and reset bullet is provided between the rotational handle and turning set
Spring, is fixed with positioning pin in the bottom sidewall of the rotational handle, and the positioning pin passes through the vertical chute on turning set, and with
Locking limiting slot on locking positioning plate matches, and vertical rod, the end of the vertical rod are fixed on the side wall of the turning set
End is hinged with bracing wire joint, and the bracing wire joint is connected with the unlock bracing wire of lever unlocking mechanism.
The hand pump configuration includes the manual pump being fixed on operation at top platform, is equipped with and shakes in the manual pump
The oil inlet of the manual pump is connected by oil pipe with fuel tank；The oil outlet of the manual pump passes through oil pipe and hydraulic cylinder group
The fuel inlet fitting of part is connected.
The bottom of the operation at top platform is equipped with the limit sensors in place for matching with scissors fork elevating mechanism,
The limit sensors in place is connected with the electromagnetism for controlling hydraulic pressure cylinder assembly fuel feeding, and controls its on-off.
The method have the advantages that:
1, by using the oil cylinder structure of hydraulic of above structure, have and be used for self-locking screw, in piston rod uphill process,
It is matched by the external screw thread on piston rod with the internal screw thread of screw, and then drives screw rotation, the ratchet on screw will be with spine
Pawl matches, and guarantees that it can only be rotated along a direction, and then effectively prevent piston rod and rotate backward, and then play
Self-locking purpose, and then ensure that the safety of hydraulic cylinder.
2, screw material selection aluminium bronze can effectively prevent it to corrode and influence its rotation, in connecing for screw upper and lower ends
Contacting surface is respectively equipped with a single direction thrust ball bearing, for reducing the frictional force of screw rotation, convenient for the flexible rotating of screw.
3, lifting action can be realized by above-mentioned scissors fork elevating mechanism.
4, self-locking effect can be played by above-mentioned oil cylinder machinery lock set, in the normal uphill process of piston rod,
Screw will be driven normally to rotate by thread groove, while the ratchet on screw is matched with pawl, also ensures ratchet just
Often rotation, and then guarantee that piston rod is normally gone up and down, and it is unaffected, it breaks down or hydraulic cylinder group when in hydraulic system
Part breaks down, and when unexpected off-load, pawl will be matched with ratchet at this time, and then it is effectively prevent to rotate backward, in turn
Locking support is carried out to piston rod, effectively prevent the danger of its rapid decrease, while effectively being propped up operation at top platform
Support.
5, operation at top platform can be used in during decline by the lever unlocking mechanism of above structure, releasing pair
The locking of piston rod.Pawl rotation will be driven by unlocking bracing wire, and then ensure that piston rod is able to drive during decline
Screw normal rotation, without will affect its normal lowering action.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the first visual angle of overall structure three-dimensional figure of the invention.
Fig. 2 is the second visual angle of overall structure three-dimensional figure of the invention.
Fig. 3 is overall structure third visual angle three-dimensional figure of the invention.
Fig. 4 is hydraulic pressure cylinder assembly main view and partial sectional view of the invention.
Fig. 5 is hydraulic pressure cylinder assembly main view of the invention.
Fig. 6 is hydraulic pressure cylinder assembly explosive view of the invention.
Fig. 7 is A-A view in Fig. 4 of the invention.
Fig. 8 is the first visual angle of hydraulic pressure cylinder assembly three-dimensional figure of the invention.
Fig. 9 is the second visual angle of hydraulic pressure cylinder assembly three-dimensional figure of the invention.
Figure 10 is that hydraulic pressure cylinder assembly of the invention removes the third visual angle three-dimensional figure after outer housing.
The first visual angle three-dimensional figure that Figure 11 is connected between manual thread drawing mechanism of the invention and oil cylinder machinery lock set.
The second visual angle three-dimensional figure that Figure 12 is connected between manual thread drawing mechanism of the invention and oil cylinder machinery lock set.
The third visual angle three-dimensional figure that Figure 13 is connected between manual thread drawing mechanism of the invention and oil cylinder machinery lock set.
In figure: bottom bay 1, scissors fork elevating mechanism 2, draw bar 3, operation at top platform 4, hydraulic cylinder component 5, hand
Pump configuration 6, manual thread drawing mechanism 7, oil cylinder machinery lock set 8；
Under(-)chassis 101, screw support 102, lower margin idler wheel 103, connection frame 104, ladder 105, handrail 106；
Hinged seat 201, the first scissors rod 202, idler wheel 203, the second scissors rod 204, gyro wheeling concrete chuting 205, scissor main shaft 206, bottom
Crossbeam 207 is installed in portion, crossbeam 208 is installed at top；
Platform framework 401, platform board 402, platform guardrail 403, instrument cases 404；
Cylinder barrel 501, cylinder bottom plug 502, the first sealing ring 503, oil cylinder bottom cover 504, upper cylinder cover 505, lock copper sheathing 506, locking screw
Female 507, piston 508, piston rod 509, the second sealing ring 5010, guide ring 5011, oil duct 5012, fuel inlet fitting 5013, screw thread
Slot 5014；
Fuel tank 601, manual pump 602, crank 603；
Mounting base 701, locking positioning plate 702, handle bolt 703, locking limiting slot 704, turning set 705, rotational handle
706, positioning pin 707, vertical rod 708, bracing wire joint 709；
Outer housing 801, limit plate 802, pull rod 803, articulated joint 804, pawl 805, locking torsional spring 806, ear mount 807, hinged spiral shell
Bolt 808, gland 809, click-fit slot 8010, screw 8011, thrust ball bearing 8012, ratchet 8013；
Limit sensors in place 9.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Referring to Fig. 1-13, a kind of hydraulic air lift, it includes bottom bay 1, and the top of the bottom bay 1 passes through
The support of scissors fork elevating mechanism 2 is equipped with operation at top platform 4, is equipped in the scissors fork elevating mechanism 2 for operation at top
The hydraulic pressure cylinder assembly 5 that platform 4 jacks is equipped with for carrying out self-locking oil cylinder machinery lock machine to it on the hydraulic pressure cylinder assembly 5
Structure 8, the hydraulic pressure cylinder assembly 5 are connected with hand pump configuration 6 and provide hydraulic power to drive the jacking of hydraulic cylinder component 5 dynamic
Make.It can be used in flight crew by using the hydraulic companion ladder of above structure and reach aircraft forward equipment bay, cockpit, fuselage two
Carry out maintenance work in the maintenance area of 4 meters of side, tail portion etc. or less height.Aircraft preparatory engineering prepare, direct engineering prepare,
Carrying personnel check, lubricate, repair when setting out inspection and periodic maintenance before engineering prepares, takes off again on take-off line again
The work such as reason, troubleshooting and debugging.In use, hydraulic cylinder component 5 is driven by hand pump configuration 6, and then passed through
Hydraulic cylinder component 5 drives scissors fork elevating mechanism 2, drives operation at top platform 4 to be risen eventually by scissors fork elevating mechanism 2
Drop, and then have the function that jacking.During jacking, it can prevent hydraulic cylinder component 5 from existing by oil cylinder mechanical lock mechanism 8
The problem of dramatic decrease caused by unexpected off-load later occurs, and then good self-locking is played to hydraulic cylinder component 5,
It ensure that the safety of its operation.
Further, the bottom bay 1 includes under(-)chassis 101, and the bottom four corners of the under(-)chassis 101 are equipped with
Lower margin idler wheel 103 is equipped with screw support 102, the under(-)chassis 101 by bracket on the two sidewalls of under(-)chassis 101
Head side wall on ladder 105 is fixedly installed with by connection frame 104, the side of ladder 105 is equipped with handrail 106, in bottom
Draw bar 3 is hinged on the tail portion side wall of frame 101.It can be used in by the bottom bay 1 of above structure to entire lift
It is supported.
Further, the scissors fork elevating mechanism 2 includes first that 1 top of bottom bay is hinged on by hinged seat 201
The center of scissors rod 202, first scissors rod 202 and the second scissors rod 204 is hinged and connected by scissor main shaft 206, described
The top of second scissors rod 204 is hinged and connected with operation at top platform 4 by hinged seat；First scissors rod 202 and second
The gyro wheeling concrete chuting that the other end of scissors rod 204 passes through idler wheel 203 respectively and is mounted on operation at top platform 4 and bottom bay 1
205 compositions are slidably matched；It is fixedly installed between first scissors rod 202 and the second scissors rod 204 for installing hydraulic cylinder
Crossbeam 208 is installed at the bottom installation crossbeam 207 of component 5 and top.It is dynamic to can be realized lifting by above-mentioned scissors fork elevating mechanism 2
Make.
Further, the operation at top platform 4 includes platform framework 401, is equipped with platform on the platform framework 401
Plate 402 is fixedly installed with platform guardrail 403, the top sidewall of the platform guardrail 403 in the top periphery of platform framework 401
On be fixedly installed with multiple instrument cases 404.Operating personnel can be supported by operation at top platform 4.
Further, the hydraulic pressure cylinder assembly 5 uses single-action hydraulic cylinder comprising cylinder barrel 501, the cylinder barrel 501
Bottom is packaged with cylinder bottom plug 502 by oil cylinder bottom cover 504, and cylinder barrel 501 is internally provided with piston rod 509, piston rod 509
End is equipped with piston 508, is fixed with locking nut 507 at the top of cylinder barrel 501, is fixed at the top of locking nut 507
Upper cylinder cover 505 is equipped with the oil cylinder mechanical lock mechanism 8 for locking piston rod 509 on upper cylinder cover 505；The piston rod 509
Center be machined with oil duct 5012, the oil duct 5012 is connected with the fuel inlet fitting 5013 that 509 end of piston rod is arranged in, institute
Fuel inlet fitting 5013 is stated to be connected with the flowline of hand pump configuration 6；The oil cylinder mechanical lock mechanism 8 is with processing in locking piston rod
Thread groove 5014 on 509 matches.Hydraulic power can be provided to entire lift by above-mentioned hydraulic pressure cylinder assembly 5, into
And it ensure that normal jacking movement.
Further, the outside of the cylinder bottom plug 502 is provided with the first sealing ring of multiple tracks 503；Outside the piston 508
Portion is provided with the second sealing ring of multiple tracks 5010, and is provided with guide ring 5011 between the second sealing ring of twice 5010.By upper
The sealing ring stated can seal well hydraulic pressure cylinder assembly 5.
Further, the oil cylinder machinery lock set 8 includes outer housing 801, and the inside of outer housing 801 passes through thrust ball axis
It holds 8012 supports and the screw 8011 matched with the thread groove 5014 on piston rod 509 is installed, set in the outside of screw 8011
It is equipped with ratchet 8013, ratchet 8013 is matched with pawl 805, and pawl 805 is hinged on 801 side of outer housing by link bolt 808
In ear mount 807 on wall, the top of the screw 8011 is encapsulated in inside outer housing 801 by gland 809, the gland 809
Thrust ball bearing is provided between screw 8011；It is machined on the side wall of the outer housing 801 for matching with pawl 805
The click-fit slot 8010 of conjunction；On the link bolt 808, and locking is provided between outer housing 801 and pawl 805 and is turned round
Spring 806.Self-locking effect can be played by above-mentioned oil cylinder machinery lock set 8, its working principle is that, when piston rod 509 just
In normal uphill process, screw 8011 will be driven normally to rotate by thread groove 5014, while the ratchet 8013 on screw 8011
Matched with pawl 805, also ensure the normal rotation of ratchet 8013, and then guarantee that piston rod 509 is normally gone up and down, without by
It influences, when breaking down in hydraulic system or hydraulic pressure cylinder assembly 5 breaks down, when unexpected off-load, pawl 805 will be at this time
Ratchet 8013 matches, and then it is effectively prevent to rotate backward, and then carries out locking support to piston rod 509, effectively anti-
The only danger of its rapid decrease, while operation at top platform 4 is effectively supported.
Further, the tail portion of the pawl 805 is hinged with the lever unlocking mechanism for driving its rotation unlock, institute
Stating lever unlocking mechanism includes being hinged on the articulated joint 804 of 805 tail portion of pawl, and unlock is connected in the articulated joint 804 and is drawn
The other end of line 803, the unlock bracing wire 803 passes through the notch on limit plate 802, and the limit plate 802 is fixed on outer housing
On 801 side wall；The other end of the unlock bracing wire 803 is connected with the manual thread drawing mechanism 7 for driving it to pull.By upper
The lever unlocking mechanism for stating structure can be used in operation at top platform 4 during decline, release the lock to piston rod 509
Tightly, it in operation process, will be rotated with pawl 805 by unlocking bracing wire 803, and then ensure that piston rod 509 in decline process
In be able to drive 8011 normal rotation of screw, without will affect its normal lowering action.
Further, the manual thread drawing mechanism 7 includes mounting base 701, and the mounting base 701 is fixedly mounted on top
On portion's job platform 4, locking positioning plate 702 is symmetrically installed at the top of mounting base 701, on the locking positioning plate 702
It is hinged with rotating cylinder set 705 by handle bolt 703, the top slide of the turning set 705 is fitted with rotational handle 706,
It is provided with reset spring between the rotational handle 706 and turning set 705, is fixed in the bottom sidewall of the rotational handle 706
Have a positioning pin 707, the positioning pin 707 passes through the vertical chute on turning set 705, and with the locking on locking positioning plate 702
Limiting slot 704 matches, and vertical rod 708 is fixed on the side wall of the turning set 705, and the end of the vertical rod 708 is hinged
There is bracing wire joint 709, the bracing wire joint 709 is connected with the unlock bracing wire 803 of lever unlocking mechanism.By above-mentioned manual
In 7 course of work of thread drawing mechanism, when needing to release the lock state between ratchet and pawl, by pressing rotational handle 706,
The cooperation so that bottom of positioning pin 707 is in contact with locking 704 arc groove of limiting slot, then rotational handle 706 is manually operated, lead to
Crossing rotational handle 706 drives turning set 705 to rotate, then drives vertical rod 708 to rotate by turning set 705, and then by vertical rod 708
Bracing wire joint 709 is driven, then unlock bracing wire 803 is driven by bracing wire joint 709, eventually by unlock bracing wire 803 with pawl 805
Rotation, disengages it from the locking between pawl 805, and then achieve the purpose that unlock.
Further, the hand pump configuration 6 includes the manual pump 602 being fixed on operation at top platform 4, described manual
Crank 603 is installed, the oil inlet of the manual pump 602 is connected by oil pipe with fuel tank 601 on pump 602；The manual pump 602
Oil outlet be connected with the fuel inlet fitting 5013 of hydraulic pressure cylinder assembly 5 by oil pipe.By above-mentioned hand pump configuration 6, can give
Hydraulic pressure cylinder assembly 5 provides hydraulic power.
Further, the bottom of the operation at top platform 4 is equipped with the limit for matching with scissors fork elevating mechanism 2
Sensors in place 9, the limit sensors in place 9 are connected with the electromagnetism for controlling 5 fuel feeding of hydraulic pressure cylinder assembly, and it is logical to control it
It is disconnected.Ensure that by above-mentioned limit sensors in place 9 can be automatically to liquid after operation at top platform 4 reaches extreme higher position
Pressure system is controlled, and continues fuel feeding to stop it, prevents it from continuing to rise bring danger.
Working principle of the present invention is as follows:
By the hydraulic air cylinder structure of above structure, during the work time, in the normal lifting process of piston rod, pass through work
Stopper rod 509 will drive the screw 8011 at the top of it to rotate, and pass through matching between the ratchet 8013 on screw 8011 and pawl 805
Close, ensure that screw 8011 can only be rotated along direction, cannot rotate backward so that screw 8011 always with piston
Bar 509, which matches, plays self-locking purpose；
When needing to release the lock state between ratchet and pawl, by pressing rotational handle 706, so that positioning pin 707
Bottom is in contact cooperation with locking 704 arc groove of limiting slot, then manually operation rotational handle 706, passes through 706 band of rotational handle
Dynamic turning set 705 rotates, then drives vertical rod 708 to rotate by turning set 705, and then drives bracing wire joint by vertical rod 708
709, then unlock bracing wire 803 is driven by bracing wire joint 709, it is rotated eventually by unlock bracing wire 803 with pawl 805, keeps it de-
From the locking between pawl 805, and then achieve the purpose that unlock.
Claims (10)
1. a kind of hydraulic air lift, it includes bottom bay (1), passes through scissors fork elevating at the top of the bottom bay (1)
Mechanism (2) support operation at top platform (4) are installed, it is characterised in that: be equipped on the scissors fork elevating mechanism (2) for pair
The hydraulic pressure cylinder assembly (5) of operation at top platform (4) jacking, is equipped on the hydraulic pressure cylinder assembly (5) self-locking for carrying out to it
Oil cylinder mechanical lock mechanism (8), the hydraulic pressure cylinder assembly (5) is connected with hand pump configuration (6) and provides hydraulic power to drive
The jacking of hydraulic cylinder component (5) acts.
2. a kind of hydraulic air lift according to claim 1, it is characterised in that: the bottom bay (1) includes bottom
The bottom four corners of frame (101), the under(-)chassis (101) are equipped with lower margin idler wheel (103), the two of under(-)chassis (101)
It is equipped with screw support (102) on side wall by bracket, passes through connection frame in the head side wall of the under(-)chassis (101)
(104) it is fixedly installed with ladder (105), the side of ladder (105) is equipped with handrail (106), in the tail portion of under(-)chassis (101)
Draw bar (3) are hinged on side wall.
3. a kind of hydraulic air lift according to claim 1, it is characterised in that: the scissors fork elevating mechanism (2) includes
The first scissors rod (202) at the top of bottom bay (1), first scissors rod (202) and are hinged on by hinged seat (201)
The center of two scissors rods (204) is hinged and connected by scissor main shaft (206), the top and top of second scissors rod (204)
Job platform (4) is hinged and connected by hinged seat；The other end of first scissors rod (202) and the second scissors rod (204) point
Not Tong Guo idler wheel (203) with the gyro wheeling concrete chuting (205) that is mounted on operation at top platform (4) and bottom bay (1) constitute sliding
Cooperation；It is fixedly installed between first scissors rod (202) and the second scissors rod (204) for installing hydraulic pressure cylinder assembly (5)
Bottom installation crossbeam (207) and top install crossbeam (208).
4. a kind of hydraulic air lift according to claim 1, it is characterised in that: the operation at top platform (4) includes
Platform framework (401) is equipped with platform board (402) on the platform framework (401), the top periphery in platform framework (401)
It is fixedly installed with platform guardrail (403), is fixedly installed with multiple instrument cases in the top sidewall of the platform guardrail (403)
(404).
5. a kind of hydraulic air lift according to claim 1, it is characterised in that: the hydraulic pressure cylinder assembly (5) is using single
Acting cylinder comprising the bottom of cylinder barrel (501), the cylinder barrel (501) is packaged with cylinder bottom plug by oil cylinder bottom cover (504)
(502), cylinder barrel (501) is internally provided with piston rod (509), and the end of piston rod (509) is equipped with piston (508), in cylinder
Locking nut (507) are fixed at the top of cylinder (501), upper cylinder cover (505) are fixed at the top of locking nut (507), upper
Oil cylinder mechanical lock mechanism (8) for locking piston rod (509) is installed on cylinder cap (505)；The center of the piston rod (509)
It being machined with oil duct (5012), fuel inlet fitting (5013) of the oil duct (5012) with setting in piston rod (509) end is connected,
The fuel inlet fitting (5013) is connected with the flowline of hand pump configuration (6)；The oil cylinder mechanical lock mechanism (8) is being locked with processing
Thread groove (5014) on tight piston rod (509) matches.
6. a kind of hydraulic air lift according to claim 5, it is characterised in that: the outside of the cylinder bottom plug (502)
It is provided with the first sealing ring of multiple tracks (503)；The outside of the piston (508) is provided with the second sealing ring of multiple tracks (5010), and
Guide ring (5011) are provided between the second sealing ring of twice (5010).
7. according to claim 1 or a kind of 5 hydraulic air lifts, it is characterised in that: the oil cylinder machinery lock set (8)
Including outer housing (801), the inside of outer housing (801) is equipped with and piston rod (509) by thrust ball bearing (8012) support
On the screw (8011) that matches of thread groove (5014), the outside of screw (8011) is provided with ratchet (8013), ratchet
(8013) it is matched with pawl (805), pawl (805) is hinged on the ear on outer housing (801) side wall by link bolt (808)
On seat (807), the top of the screw (8011) is encapsulated in outer housing (801) inside, the gland by gland (809)
(809) thrust ball bearing is provided between screw (8011)；It is machined with and is used for and spine on the side wall of the outer housing (801)
The click-fit slot (8010) that pawl (805) matches；On the link bolt (808), and it is located at outer housing (801) and pawl
(805) locking torsional spring (806) is provided between.
8. a kind of hydraulic air lift according to claim 7, it is characterised in that: the tail portion of the pawl (805) is hinged
There is the lever unlocking mechanism for driving its rotation unlock, the lever unlocking mechanism includes being hinged on pawl (805) tail
The articulated joint (804) in portion, is connected with unlock bracing wire (803) on the articulated joint (804), unlock bracing wire (803) it is another
The notch on limit plate (802) is held, the limit plate (802) is fixed on the side wall of outer housing (801)；The unlock is drawn
The other end of line (803) is connected with the manual thread drawing mechanism (7) for driving it to pull.
9. a kind of hydraulic air lift according to claim 8, it is characterised in that: the manual thread drawing mechanism (7) includes
Mounting base (701), the mounting base (701) is fixedly mounted on operation at top platform (4), in mounting base (701)
Top is symmetrically installed with locking positioning plate (702), is hinged with and is turned by handle bolt (703) on the locking positioning plate (702)
Cylinder set (705), the top slide of the turning set (705) are fitted with rotational handle (706), the rotational handle (706)
It is provided with reset spring between turning set (705), is fixed with positioning pin in the bottom sidewall of the rotational handle (706)
(707), the positioning pin (707) pass through turning set (705) on vertical chute, and with the locking on locking positioning plate (702)
Limiting slot (704) matches, and is fixed with vertical rod (708) on the side wall of the turning set (705), the vertical rod (708)
End is hinged with bracing wire joint (709), and the bracing wire joint (709) is connected with the unlock bracing wire (803) of lever unlocking mechanism.
10. a kind of hydraulic air lift according to claim 1, it is characterised in that: the hand pump configuration (6) includes solid
The manual pump (602) being scheduled on operation at top platform (4) is equipped with crank (603) on the manual pump (602), it is described manually
The oil inlet of pump (602) is connected by oil pipe with fuel tank (601)；The oil outlet of the manual pump (602) by oil pipe with it is hydraulic
The fuel inlet fitting (5013) of cylinder component (5) is connected；
The bottom of the operation at top platform (4) is equipped with for sensing in place with the limit that scissors fork elevating mechanism (2) match
Device (9), the limit sensors in place (9) are connected with the electromagnetism for controlling hydraulic pressure cylinder assembly (5) fuel feeding, and it is logical to control it
It is disconnected.
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| CN201910376109.8A CN110104594B (en) | 2019-05-07 | 2019-05-07 | Aviation hydraulic elevator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910376109.8A CN110104594B (en) | 2019-05-07 | 2019-05-07 | Aviation hydraulic elevator |
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| CN110104594A true CN110104594A (en) | 2019-08-09 |
| CN110104594B CN110104594B (en) | 2024-03-29 |
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| CN201910376109.8A Active CN110104594B (en) | 2019-05-07 | 2019-05-07 | Aviation hydraulic elevator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110924852A (en) * | 2019-11-29 | 2020-03-27 | 广州飞机维修工程有限公司 | A330 series aircraft wheel cabin and undercarriage maintenance work ladder |
| CN112031636A (en) * | 2020-08-05 | 2020-12-04 | 凌云(宜昌)航空装备工程有限公司 | Follow-up type airplane maintenance lifting working ladder with self-locking device |
| CN112158758A (en) * | 2020-09-24 | 2021-01-01 | 上海挚美航空设备有限公司 | Air source power driving type lifting working ladder |
| FR3105202A1 (en) * | 2019-12-23 | 2021-06-25 | Haulotte Group | Scissor lift and method for determining the stability of such a platform |
| CN114634138A (en) * | 2022-03-21 | 2022-06-17 | 中车太原机车车辆有限公司 | Electric rail car capable of lifting operation |
| CN114835064A (en) * | 2022-05-19 | 2022-08-02 | 浙江瀚镪自动化设备股份有限公司 | Self-propelled scissor-fork type aerial work platform |
| CN115215028A (en) * | 2022-07-06 | 2022-10-21 | 青岛宝佳智能装备股份有限公司 | Top supporting plate lifting mechanism of four-direction vehicle for intelligent warehousing |
| WO2025091675A1 (en) * | 2023-10-31 | 2025-05-08 | 浙江嘉诚动能科技股份有限公司 | Scissor hydraulic lifting platform for condenser tube insertion |
| CN120175393A (en) * | 2025-05-20 | 2025-06-20 | 北京朗德金燕自动化装备股份有限公司 | A hydraulic support structure |
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| CN112031636A (en) * | 2020-08-05 | 2020-12-04 | 凌云(宜昌)航空装备工程有限公司 | Follow-up type airplane maintenance lifting working ladder with self-locking device |
| CN112158758A (en) * | 2020-09-24 | 2021-01-01 | 上海挚美航空设备有限公司 | Air source power driving type lifting working ladder |
| CN114634138B (en) * | 2022-03-21 | 2023-09-12 | 中车太原机车车辆有限公司 | Electric rail car capable of lifting operation |
| CN114634138A (en) * | 2022-03-21 | 2022-06-17 | 中车太原机车车辆有限公司 | Electric rail car capable of lifting operation |
| CN114835064B (en) * | 2022-05-19 | 2024-02-27 | 浙江瀚镪自动化设备股份有限公司 | Self-propelled scissor type aerial work platform |
| CN114835064A (en) * | 2022-05-19 | 2022-08-02 | 浙江瀚镪自动化设备股份有限公司 | Self-propelled scissor-fork type aerial work platform |
| CN115215028A (en) * | 2022-07-06 | 2022-10-21 | 青岛宝佳智能装备股份有限公司 | Top supporting plate lifting mechanism of four-direction vehicle for intelligent warehousing |
| CN115215028B (en) * | 2022-07-06 | 2023-01-31 | 青岛宝佳智能装备股份有限公司 | Top supporting plate lifting mechanism of four-way vehicle for intelligent storage |
| WO2025091675A1 (en) * | 2023-10-31 | 2025-05-08 | 浙江嘉诚动能科技股份有限公司 | Scissor hydraulic lifting platform for condenser tube insertion |
| CN120175393A (en) * | 2025-05-20 | 2025-06-20 | 北京朗德金燕自动化装备股份有限公司 | A hydraulic support structure |
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