Improve the device of cylinder efficient stability
Technical field
The present invention relates to a kind of mechanism for avoiding trembling, and in particular to improves the device of cylinder efficient stability.
Background technology
Hydraulic jack is that hydraulic energy is changed into mechanical energy, straight reciprocating motion is done or the hydraulic pressure of oscillating motion performs member
Part.Its simple in construction, reliable operation.Realized with it during reciprocating motion, deceleration device can be removed from, and without drive gap,
Stable movement, therefore be used widely in various mechanical hydraulic systems.Hydraulic jack power output and piston rod significant surface
The pressure difference on product and its both sides is directly proportional;Hydraulic jack is substantially by cylinder barrel and cylinder cap, piston rod and piston rod, sealing device, slow
Flushing device is constituted with exhaust apparatus.Buffer unit is with exhaust apparatus depending on concrete application occasion, and other devices are then essential.
The mechanism with certain mass is driven using hydraulic jack in hydraulic system, when hydraulic jack moves to stroke end
There is larger kinetic energy during point, such as do not make deceleration processing, with cylinder cap mechanical collision will occur for hydraulic cylinder piston rod, produce impact,
Noise, there is destructiveness.To relax and preventing this harm from occurring, therefore deceleration device can be set in hydraulic circuit or in cylinder body
Inside set buffer unit.
Hydraulic jack is the executive component that hydraulic energy is converted to in hydraulic system mechanical energy, and its failure can be summarized as substantially
Hydraulic jack misoperation, powerless promotion load, piston rod sliding are creeped and oil leak etc..Due to hydraulic jack failure
Cause the phenomenon of equipment downtime of common occurrence, therefore, the fault diagnosis and working service that should pay attention to hydraulic jack work.
When the load that the piston rod of hydraulic jack is born is larger or piston rod is improper with sealing ring fit clearance, meeting
Make oil cylinder operationally, produce vibration.Vibration direction is concentrated mainly on the radial direction of oil cylinder.Oil cylinder trembles, and is not only influenceing oil cylinder just
Often work, and overhanging piston rod is extremely stressed in radial direction, easily piston rod is radially broken, reduce making for oil cylinder
With life-span and the fairness of work.
The content of the invention
Present invention aims at the device for providing raising cylinder efficient stability, solve when the piston rod of hydraulic jack is born
Load is larger or when piston rod and improper sealing ring fit clearance, can make oil cylinder operationally, produce wobble problem.Cause
This present invention designs the device for improving cylinder efficient stability, eliminates oil cylinder vibration, so that oil cylinder normal work, and reduce outer
The stress that the piston rod stretched is subject in radial direction, improves the service life of oil cylinder and the fairness of work.
The present invention is achieved through the following technical solutions:
The device of cylinder efficient stability is improved, including installing plate, drive device and is arranged on installing plate upper surface
Depression bar assembly, the depression bar assembly includes the support bar that is sequentially connected and connecting rod, and the axis of the support bar is perpendicular to peace
The upper surface of plate is filled, one end and the installing plate upper surface of support bar are hinged, and the other end of support bar is connected with connecting rod, it is described to drive
Dynamic device is connected with support bar, and support bar can be driven to be rotated around hinge axes.
The present invention is arranged on the side of oil cylinder, when oil cylinder is trembled, starts drive device, so that support bar is around being hinged
Axis is rotated, until connecting rod is pressed on the outer wall of oil cylinder, to limit trembling for oil cylinder, makes oil cylinder normal work, and reduce
The stress that overhanging piston rod is subject in radial direction, improves the service life of oil cylinder and the fairness of work.
Further, the axis of the connecting rod perpendicular to support bar axis, and away from support bar in connecting rod
One end is provided with force application rod, the axis of the force application rod and the diameter parallel of support bar, and is located at the same of connecting rod with support bar
Side.The setting of force application rod can increase the restraint for coming from support bar that oil cylinder is received, and further improve the limitation of the present invention
The power of oil cylinder vibration.
Further, the chamfer away from connecting rod on force application rod, and end is provided with elastic rubber layer herein.In order to
Avoid oil cylinder from trembleing, the restraint for coming from depression bar assembly suffered by oil cylinder greatly, when oil cylinder surface stress is excessive, its by
Power position can produce damage, destroy the antirust paint of oil cylinder;Therefore to force application rod chamfering, suffered by a reduction oil cylinder contact surface
Stress, while setting elastic rubber layer, plays a protective role to cylinder force position.
Further, the connecting portion between the connecting portion and connecting rod and force application rod between support bar and connecting rod
It is provided with chamfering.Chamfering is to lower the stress of corresponding connecting portion, improve the service life of the present invention.
Further, it is provided with bracing piece between force application rod and support bar, one end of the bracing piece and force application rod
Side wall connection, the other end of bracing piece and the side wall of support bar are connected, and are come than the one end being connected on bracing piece with force application rod
Say, the one end being connected on bracing piece with support bar is closer to installing plate.
Further, the drive device includes actuating arm, drive block, screw rod and the motor being sequentially connected;
Chute, one end of the actuating arm and side walls hinged, the driving of support bar are provided with the upper surface of installing plate
The other end of arm and drive block it is side walls hinged;
Sliding block is provided with one end of drive block, the sliding block is located in chute, the axis of the screw rod and prolonging for chute
Diameter parallel is stretched, and sliding block is run through in one end of screw rod, and be threadedly coupled with sliding block, the other end and motor connection of screw rod, screw rod
Rotate, moved with movable slider and drive block along the axis of screw rod, and make support bar around its jointed shaft between installing plate
Line is rotated.
Further, the opening size of the chute is less than bottom land size, and the cross sectional dimensions and the horizontal stroke of chute of sliding block
Sectional dimension is consistent.
Further, the drive device and depression bar assembly have several, in several depression bar assemblies, each two depression bar
Component is a pair, and in a pair of depression bar assemblies, toward each other, the hinge axes between support bar and installing plate turn connecting rod
Dynamic support bar, connecting rod can be close to each other or remote;Every group of depression bar assembly is along the hinge axes between support bar and installing plate
It is arranged in order;Depression bar assembly is respectively connected with a drive device respectively.
The present invention compared with prior art, has the following advantages and advantages:
1st, the present invention improves the device of cylinder efficient stability, when oil cylinder is trembled, and starts drive device, so that support bar
Rotated around hinge axes, until connecting rod is pressed on the outer wall of oil cylinder, to limit trembling for oil cylinder, make the normal work of oil cylinder
Make, and reduce the stress that overhanging piston rod is subject in radial direction, improve the service life of oil cylinder and the fairness of work;
2nd, the present invention improves the device of cylinder efficient stability, and what the setting of force application rod can increase that oil cylinder receives comes from branch
The restraint of strut, further improves the power of the limitation oil cylinder vibration of the present invention;
3rd, the present invention improves the device of cylinder efficient stability, in order to avoid oil cylinder trembles, coming from suffered by oil cylinder
Greatly, when oil cylinder surface stress is excessive, its force part can produce damage to the restraint of depression bar assembly, destroy the antirust of oil cylinder
Paint;Therefore to force application rod chamfering, suffered stress on a reduction oil cylinder contact surface, while elastic rubber layer is set, to oil cylinder
Force part plays a protective role.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the invention;
Fig. 2 is front view of the invention;
Fig. 3 is the position view that depression bar assembly leaves oil cylinder;
Fig. 4 is the front view that depression bar assembly leaves oil cylinder;
Fig. 5 is the structural representation of depression bar assembly.
Mark and corresponding parts title in accompanying drawing:
1- installing plates, 2- support bars, 3- connecting rods, 4- force application rods, 5- bracing pieces, 6- actuating arms, 7- drive blocks, 8- spiral shells
Bar, 9- chutes, 10- oil cylinders.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As Figure 1-Figure 5, the present invention improve cylinder efficient stability device, including installing plate 1, drive device and
The depression bar assembly on the upper surface of installing plate 1 is arranged on, the depression bar assembly includes support bar 2 and the connecting rod 3 being sequentially connected, institute
The axis of support bar 2 is stated perpendicular to the upper surface of installing plate 1, one end and the upper surface of installing plate 1 of support bar 2 are hinged, support bar 2
The other end be connected with connecting rod 3, the drive device is connected with support bar 2, and can drive support bar 2 around hinge axes turn
It is dynamic.
The present invention is arranged on the side of oil cylinder 10, when oil cylinder 10 is trembled, starts drive device so that support bar 2 around
Hinge axes rotation, until connecting rod 3 is pressed on the outer wall of oil cylinder 10, to limit trembling for oil cylinder 10, makes oil cylinder 10 just
Often work, and the stress that overhanging piston rod is subject in radial direction is reduced, improve the service life of oil cylinder 10 and the fairness of work.
Embodiment 2
The present invention is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 5, the present invention improves the device of cylinder efficient stability, the axis of the connecting rod 3 perpendicular to
The axis of support bar 2, and one end away from support bar 2 is provided with force application rod 4 in connecting rod 3, the axis of the force application rod 4 with
The diameter parallel of support bar 2, and with support bar 2 positioned at the same side of connecting rod 3.The setting of force application rod 4 can increase oil cylinder 10 and receive
To the restraint for coming from support bar 2, further improve the present invention limitation oil cylinder 10 tremble power.
Further, the chamfer away from connecting rod 3 on force application rod 4, and end is provided with elastic rubber layer herein.For
Avoid oil cylinder 10 from trembleing, the restraint for coming from depression bar assembly suffered by oil cylinder 10 greatly, when the surface stress mistake of oil cylinder 10
When big, its force part can produce damage, destroy the antirust paint of oil cylinder 10;Therefore to the chamfering of force application rod 4, a reduction oil cylinder 10 connects
Suffered stress in contacting surface, while setting elastic rubber layer, plays a protective role to the force part of oil cylinder 10.
Further, between support bar 2 and connecting rod 3 the connection between connecting portion and connecting rod 3 and force application rod 4
Position is provided with chamfering.Chamfering is to lower the stress of corresponding connecting portion, improve the service life of the present invention.
Further, bracing piece 5, one end of the bracing piece 5 and force are provided between force application rod 4 and support bar 2
The side wall connection of bar 4, the other end of bracing piece 5 is connected with the side wall of support bar 2, and than being connected on bracing piece 5 with force application rod 4
One end for, the one end being connected on bracing piece 5 with support bar 2 is closer to installing plate 1.
Embodiment 3
The present invention is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 5, the present invention improves the device of cylinder efficient stability, and the drive device includes being sequentially connected
Actuating arm 6, drive block 7, screw rod 8 and motor;
It is provided with chute 9 on the upper surface of installing plate 1, one end of the actuating arm 6 is side walls hinged with support bar 2,
The other end of actuating arm 6 is side walls hinged with drive block 7;
Sliding block is provided with one end of drive block 7, the sliding block is located in chute 9, axis and the chute 9 of the screw rod 8
Extension diameter parallel, and sliding block is run through in one end of screw rod 8, and be threadedly coupled with sliding block, the other end and the motor company of screw rod 8
Connect, screw rod 8 is rotated, the axis with movable slider and drive block 7 along screw rod 8 is moved, and make support bar 2 around itself and installing plate 1
Between hinge axes rotate.
Further, the opening size of the chute 9 is less than bottom land size, and the cross sectional dimensions and chute 9 of sliding block
Cross sectional dimensions is consistent.
Embodiment 4
The present invention is that on the basis of embodiment 1, the present invention is further illustrated.
As Figure 1-Figure 5, the present invention improves the device of cylinder efficient stability, and the drive device and depression bar assembly are equal
There are several, in several depression bar assemblies, during each two depression bar assembly is a pair, and a pair of depression bar assemblies, the phase each other of connecting rod 3
Right, the hinge axes rotary supporting rod 2 between support bar 2 and installing plate 1, connecting rod 3 can be close to each other or remote;Every team
Depression bar assembly is arranged in order along the hinge axes between support bar 2 and installing plate 1;Depression bar assembly is respectively filled with a driving respectively
Put connection.
Each pair depression bar assembly is along the axisymmetrical of oil cylinder 10, and depression bar assembly is located at the both sides of oil cylinder 10.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.