CN108840241A - A kind of hydraulic pressure stabilizer - Google Patents
A kind of hydraulic pressure stabilizer Download PDFInfo
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- CN108840241A CN108840241A CN201810682327.XA CN201810682327A CN108840241A CN 108840241 A CN108840241 A CN 108840241A CN 201810682327 A CN201810682327 A CN 201810682327A CN 108840241 A CN108840241 A CN 108840241A
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- main body
- fixed block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to a kind of dampers,In particular to a kind of hydraulic pressure stabilizer,Including main body,Main shaft and two end caps,Centering block and fixed block are provided in cavity between main body and main shaft,Cavity between main body and main shaft is divided into first chamber and second chamber disconnected from each other by centering block and fixed block,First chamber and second chamber are filled with hydraulic oil,Fixed block is fixed with main body,Centering block is fixed with main shaft,Db valve is offered on fixed block or centering block,Db valve includes the first oil-through hole,Second oil-through hole and plunger hole,Plunger hole is provided in fixed block or centering block,First oil-through hole is connected to first chamber and plunger hole,Second oil-through hole is connected to second chamber and plunger hole,Pin is provided in plunger hole,First spring and second spring,Pin is between the first spring and second spring,Pin and plunger hole are slidingly sealed cooperation.Invention achieves the effects that video camera shaking can be further decreased in the case where vibrating lesser situation.
Description
Technical field
The present invention relates to a kind of damper, in particular to a kind of hydraulic pressure stabilizer.
Background technique
The goliath at harbour etc., it is unsighted since the position of operating room is higher, therefore on goliath
It generally is fitted with image capturing system, is fast and accurately lifted work with assist operators.In image capturing system
Video camera be generally all mounted in large arm, the image on ground is acquired straight down, due in crane hanging component
Large arm can generate rotation in the process, to guarantee that video camera can be shot straight down always, it is desirable that video camera and large arm turn
Dynamic connection, can be always ensured that under the Gravitative Loads of video camera shot straight down in this way.
Again due to crane starting, stopping or when colliding with video camera can because inertia phase to crane large arm hair
Raw movement, the picture that will cause imaging generate shake, are unfavorable for operator and observe picture.Therefore lead between video camera and large arm
It can often be connected using stabilizer, the shaking generated come isolated camera by inertia using stabilizer.
The prior art can refer to the patent of invention that Authorization Notice No. is CN204041815U, and it discloses a kind of general radial directions
Hydraulic pressure stabilizer, including main body, main shaft, sealing cover and flange seat, main body are the tubular body of both ends open, and seal cap sealing lid closes
At the both ends of main body, main shaft then passes through two sealing covers and connect with sealing cover rotary seal, and flange seat is then separately fixed at
The both ends of main shaft；Fixed block and centering block are provided between main shaft and main body, fixed block is fixedly connected with main body, and centering block and main shaft are solid
Cavity between main shaft and main body is divided into two chambers by fixed connection, fixed block and centering block, and connection two is offered on fixed block
The intercommunicating pore of chamber, two chambers are interior to be filled with hydraulic oil.When in use, flange seat and crane large arm are solid for hydraulic pressure stabilizer
It connects, main body is affixed with video camera, and when crane starts or stops suddenly, video camera can be since inertia phase be to crane large arm
Move, video camera drives main body and fixed block with respect to main axis, with the rotation of fixed block, fixed block by one of them
Hydraulic oil in chamber squeezes into another chamber from the intercommunicating pore on fixed block, while the indoor hydraulic oil of chamber can apply fixed block
Add a biggish reaction force, which is applied to main body and video camera by fixed block, for stablizing video camera, prevents
Biggish shaking occurs for video camera, ensure that the stabilization of shooting picture.
It is in place of above-mentioned the deficiencies in the prior art, when the vibration of crane large arm is smaller（That is the inertia of video camera is smaller）
When, video camera is also due to inertia and the low-angle that drives main body and fixed block certain with respect to main axis, to occur slow
Shaking, be imaged with being similarly unfavorable for camera stabilization.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic pressure stabilizer, having reached can further drop in the case where vibrating lesser situation
The effect that low video camera shakes.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of hydraulic pressure stabilizer, including main body, main shaft and two end caps, main body are the tubular body of both ends open, and two end caps are close
Capping, which merges, is fixed on the both ends of main body, main shaft through two end caps and main shaft it is coaxial with main body and with end cap rotary seal company
It connects；It is provided with centering block and fixed block in cavity between main body and main shaft, centering block and fixed block are by the sky between main body and main shaft
Chamber is divided into first chamber and second chamber disconnected from each other, and first chamber and second chamber are filled with hydraulic oil, fixed block and master
The inner sidewall of body is relatively fixed, and centering block is relatively fixed with main shaft, and db valve is offered on fixed block or centering block, and db valve includes
First oil-through hole, the second oil-through hole and plunger hole, plunger hole are provided in fixed block or centering block, the first oil-through hole and the second mistake
Oilhole is provided with the outer surface of fixed block or centering block, and the first oil-through hole is connected to first chamber and plunger hole, the second oil-through hole
It is connected to second chamber and plunger hole, pin, the first spring and second spring is provided in plunger hole, pin is located at the first spring
Between second spring, pin and plunger hole are slidingly sealed cooperation；When pin, the first spring and second spring are in normal condition
When, pin is isolated by the first oil-through hole and the second oil-through hole.
By using above-mentioned technical proposal, when lifting machine vibration is larger, video camera, which has, drives main body, end cap and fixation
For block with respect to the trend of main axis, fixed block squeezes the hydraulic oil in first chamber or second chamber, the hydraulic oil being extruded
Entered in plunger hole by the first oil-through hole or the second oil-through hole, and oppresses the bullet that pin overcomes the first spring and second spring
Power is slided in plunger hole, is connected to the first oil-through hole and the second oil-through hole, to make the liquid in first chamber and second chamber
Pressure oil can circulate mutually to balance pressure, and as hydraulic oil flows in first chamber and second chamber, fixed block can phase
Centering block is rotated, since hydraulic oil is smaller by the flow of db valve and speed, video camera relative to crane rotation compared with
It is gentle for gentle and reset, guarantee that camera picture will not generate violent shaking；When lifting machine vibration is smaller, video camera meeting
Have the tendency that driving main body, end cap and fixed block with respect to main axis, fixed block squeezes in first chamber or second chamber
Hydraulic oil, the hydraulic oil being extruded are entered in plunger hole by the first oil-through hole or the second oil-through hole, due to camera shooting with small vibration
Machine drives fixed block smaller with respect to the trend of motion of main shaft, and the insufficient pressure of hydraulic oil can be connected to the to overcome pin to be moved to
The elastic force of first spring and second spring when the position of one oil-through hole and the second oil-through hole, therefore in first chamber and second chamber
Hydraulic oil will not be circulated mutually by db valve, such fixed block will not rotate substantially relative to centering block, i.e., video camera will not phase
It rotates to crane, to promote the synchronization extent of video camera and crane to reduce the shaking degree of shooting picture.
Preferably, the first oil-through hole and the second oil-through hole are provided with fixed block or centering block close to first chamber and respectively
The side of two chambers.
Preferably, the first oil-through hole is provided with centering block or fixed block close to the side of first chamber, the second oil-through hole is opened
Centering block or fixed block are located at close to the side of main body；Db valve further includes intercommunicating pore and regulating valve, and intercommunicating pore is provided with centering block
Or fixed block is close to the side of second chamber, and intercommunicating pore is located remotely from one end of the first oil-through hole, regulating valve is inserted into position
In plunger hole between intercommunicating pore and the second oil-through hole；It is excessively oily that the part that regulating valve is located in plunger hole offers connection second
The flow channels in hole and intercommunicating pore, and regulating valve is the revolving body that can be rotated along axis.
By using above-mentioned technical proposal, when the vibration of crane large arm is larger, the inertia of video camera is larger, first chamber
When generating biggish oil pressure because of the relative rotation trend between video camera and crane large arm, hydraulic oil in first chamber from
First oil-through hole enters in plunger hole, and squeezes pin and the elastic force of the first spring and second spring is overcome to slide in plunger hole,
It is connected to the first oil-through hole with the second oil-through hole, forms certain sealing since the second oil-through hole is bonded with main body inner sidewall,
The hydraulic oil flowed into out of second oil-through hole is crossed in the plunger hole that pin enters the other side by the second oil-through hole, is finally passed through
The flow channels of regulating valve are flowed out from intercommunicating pore, into second chamber；Conversely, after the hydraulic oil of second chamber is pressurized, from even
Through-hole enters plunger hole, and pin is pushed to overcome the first spring and the elastic force of second spring sliding in plunger hole after flow channels
It is dynamic, make to be connected between intercommunicating pore and the first oil-through hole, to enter in first chamber after making the hydraulic oil in second chamber be pressurized；
By rotating regulating valve, the registration of flow channels and plunger hole changes, to adjust the hydraulic oil by plunger hole
The registration of flow velocity, flow channels and plunger hole more high flow rate is bigger, and resistance when rotating between main body and main shaft is smaller,
Video camera is easier to rotate relative to crane, and buffer capacity is poorer, but impact resistance ability is stronger, and vice versa.
Preferably, db valve is provided in fixed block.
It is relatively fixed between fixed block and main body by using above-mentioned technical proposal, such second oil-through hole and main body it
Between leakproofness with regard to more preferable.
Preferably, the other end passes through main body and connect with body seal in one end insertion plunger hole of regulating valve.
By using above-mentioned technical proposal, regulating valve is pierced by main body, regulating valve can be rotated from body exterior, to change
Registration between circulation road and plunger hole.
Preferably, being provided with the graduation mark of instruction control valve opening in main body.
By using above-mentioned technical proposal, convenient for intuitively observing the registration size of flow channels and plunger hole.
Preferably, there is gap between centering block outer diameter and inner major diameter and between fixed block internal diameter and main shaft outer diameter,
The range in gap is 0.02mm~0.08mm.
By using above-mentioned technical proposal, when crane gently moves, certain angle can occur for crane large arm
Variation, at this time since the gravity of video camera itself makes the hydraulic oil between centering block and fixed block be pressurized, if hydraulic oil is pressurized
Pressure it is smaller when be difficult to overcome the first spring when pin being made to slide into the position for being connected to the first oil-through hole with the second oil-through hole
With the elastic force of second spring, then the hydraulic oil in first chamber and second chamber can only be by between centering block outer diameter and inner major diameter
And the gap between fixed block internal diameter and main shaft outer diameter is slowly flowed, to balance the oil pressure in first chamber and second chamber,
During first chamber and second chamber oil pressure balance, to be in physical slot, i.e., just video camera can be rotated relative to large arm
Normal camera site.
Preferably, the first oil-through hole is slotted hole, the extending direction of slotted hole is parallel with plunger axially bored line.
In conclusion the present invention has the following technical effects：
1, by opening up db valve on fixed block or centering block, having reached can be further decreased in the case where vibrating lesser situation
The effect that video camera shakes；
2, by being arranged regulating valve on db valve, regulating valve is rotated to adjust the registration between flow channels and plunger hole,
Achieve the effect that change hydraulic pressure stabilizer buffer capacity and impact resistance；
3, by being arranged db valve on fixed block, and regulating valve is made to be pierced by main body, having reached can turn from body exterior
The effect of dynamic regulating valve.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of embodiment one；
Fig. 2 is that embodiment one removes the schematic diagram of internal structure after main body；
Fig. 3 is the sectional view along A-A in Fig. 1；
Fig. 4 is the B-B direction cross-sectional view in Fig. 1；
Fig. 5 is the external structure schematic diagram of embodiment two；
Fig. 6 is that embodiment two removes the schematic diagram of internal structure after main body；
Fig. 7 is C-C in Fig. 5 to cross-sectional view；
Fig. 8 is the structural schematic diagram of regulating valve.
In figure, 1, main body；11, first chamber；12, second chamber；13, it changes oil hole；2, main shaft；3, end cap；31, axle sleeve；
32, outside framework oil seal；33, set is abutted；4, centering block；5, fixed block；6, db valve；61, the first oil-through hole；62, the second oil-through hole；
63, plunger hole；64, pin；65, the first spring；66, second spring；67, intercommunicating pore；68, regulating valve；681, flow channels；
682, preformed hole；7, connecting flange.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.The wherein identical appended drawing reference of identical components
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
Embodiment one：
Referring to figs. 1 and 2, a kind of hydraulic pressure stabilizer, including main body 1,2, two end caps 3 of main shaft and two connecting flanges 7,
Main body 1 is the tubular body of both ends open, and two 3 sealing covers of end cap merge the both ends for being fixed on main body 1, and main shaft 2 is through two ends
Lid 3 and main shaft 2 is coaxial with main body 1 and connect with 3 rotary seal of end cap, connecting flange 7 is located at the both ends of main shaft 2, and
Connecting flange 7 is fixedly connected with main shaft 2, and wherein video camera is stationarily connected in main body 1, connecting flange 7 and crane large arm
It is affixed.After crane large arm emergency stop, suddenly rising or colliding, video camera can generate fortune to crane large arm due to inertia phase
Dynamic, video camera will drive main body 1 and rotate relative to main shaft 2.
As shown in Fig. 2, centering block 4 and fixed block 5 are provided in cavity between main body 1 and main shaft 2, as shown in figure 3, centering block
4 and fixed block 5 cavity between main body 1 and main shaft 2 is divided into first chamber 11 and second chamber 12 disconnected from each other, the first chamber
Hydraulic oil is separately filled in room 11 and second chamber 12, fixed block 5 and the inner sidewall of main body 1 are relatively fixed, centering block 4 and main shaft
2 is relatively fixed, offers the connectivity structure that can be connected to first chamber 11 and second chamber 12 on fixed block 5 or centering block 4.When
When video camera drives main body 1 to rotate relative to main shaft 2, fixed block 5 follows the rotation of main body 1 to squeeze first chamber 11 or the second chamber
Hydraulic oil in room 12 makes the hydraulic oil in first chamber 11 and second chamber 12 pass through the mutual vapor pressure of connectivity structure；It is logical
The hydraulic oil buffering in first chamber 11 and second chamber 12 is crossed, can guarantee that the velocity of rotation of main body 1 and main shaft 2 will not be short
Violent variation occurs in time and guarantees the stabilization of camera picture to slow down the vibration of video camera.
There are many kinds of the fixed forms of centering block 4 and fixed block 5, as shown in Fig. 2, centering block 4 passes through bolt in the present embodiment
Be fixed on main shaft 2, the both ends of fixed block 5 are plugged on respectively in the slot that two end caps 3 open up, by by fixed block 5 and end
The fixation of lid 3 is relatively fixed with main body 1 to realize.
As shown in figure 4, the connectivity structure being arranged on centering block 4 or fixed block 5 in the present embodiment is db valve 6, it is double to open
Valve 6 includes the first oil-through hole 61, the second oil-through hole 62（See Fig. 2）With plunger hole 63, plunger hole 63 is provided with fixed block 5 or pendulum
In block 4, the first oil-through hole 61 and the second oil-through hole 62 are provided with the outer surface of fixed block 5 or centering block 4, as shown in connection with fig. 3,
One oil-through hole 61 is connected to first chamber 11 and plunger hole 63, and the second oil-through hole 62 is connected to second chamber 12 and plunger hole 63,
Pin 64, the first spring 65 and second spring 66 are provided in plunger hole 63, pin 64 is located at the first spring 65 and second spring
Between 66, pin 64 and plunger hole 63 are slidingly sealed cooperation；When pin 64, the first spring 65 and second spring 66 are in normal shape
When state（When oil pressure balance i.e. in first chamber 11 and second chamber 12）, pin 64 is by the first oil-through hole 61 and the second oil-through hole
62 isolation.When lifting machine vibration is larger, video camera, which has, drives main body 1, end cap 3 and fixed block 5 to become relative to what main shaft 2 rotated
Gesture, fixed block 5 squeeze the hydraulic oil in first chamber 11 or second chamber 12, and the hydraulic oil being extruded passes through the first oil-through hole
61 or second oil-through hole 62 enter in plunger hole 63, and oppress the elastic force that pin 64 overcomes the first spring 65 and second spring 66
It is slided in plunger hole 63, is connected to the first oil-through hole 61 with the second oil-through hole 62, to make first chamber 11 and second chamber
Hydraulic oil in 12 can circulate mutually to balance pressure, as hydraulic oil flows in first chamber 11 and second chamber 12
It is dynamic, fixed block 5 can opposite centering block 4 rotate, due to hydraulic oil pass through db valve 6 flow and speed it is smaller, video camera phase
And reset more gentle to the rotation of crane gently, guarantees that camera picture will not generate violent shaking；When crane shakes
When dynamic smaller, video camera has the trend for driving main body 1, end cap 3 and fixed block 5 to rotate relative to main shaft 2, the extruding of fixed block 5 the
The hydraulic oil that hydraulic oil of one chamber 11 perhaps in second chamber 12 is extruded passes through the first oil-through hole 61 or the second oil-through hole
62 enter in plunger hole 63, since the trend that vibration small camera drives fixed block 5 to move with respect to main shaft 2 is smaller, hydraulic oil
First spring when insufficient pressure is to overcome pin 64 to be moved to the position that can be connected to the first oil-through hole 61 and the second oil-through hole 62
65 and second spring 66 elastic force, therefore the hydraulic oil in first chamber 11 and second chamber 12 will not be mutual by db valve 6
Circulation, such fixed block 5 will not rotate substantially relative to centering block 4, i.e., video camera will not rotate with respect to crane, to be promoted
The synchronization extent of video camera and crane is to reduce the shaking degree of shooting picture.
First oil-through hole 61 and the second oil-through hole 62 open up there are many positions, such as Fig. 2 and Fig. 3 and combine it is described above,
In the present embodiment, the first oil-through hole 61 and the second oil-through hole 62 are provided with fixed block 5 or centering block 4 close to first chamber 11 respectively
With the side of second chamber 12.First oil-through hole 61 and the second oil-through hole 62 are slotted hole, and the extending direction of slotted hole with
63 axis of plunger hole is parallel, can guarantee to push pin 64 towards the first oil-through hole 61 or the second mistake in identical oil pressure in this way
When the mobile same distance of oilhole 62, when the first oil-through hole 61 and fuel-displaced the second oil-through hole 62 to cross pasta product roughly the same.
Db valve 6 can be provided on fixed block 5 or centering block 4, and db valve 6 is provided with fixed block 5 in the present embodiment
On.
In addition, with reference to background technique it is found that crane large arm is inclined during crane large arm normally lifts cargo
Rake angle can constantly change, if video camera is required still to be able to shoot the picture of lift hook position after crane large arm run-off the straight
Face just necessarily requires video camera to rotate with respect to crane large arm.In the present embodiment, in conjunction with shown in Fig. 3 and Fig. 4, due to double
Pin 64, the first spring 65 and second spring 66 are provided in valve opening 6, after crane large arm run-off the straight, video camera from
The trend of relative motion occurs for the opposite crane large arm of video camera meeting under the action of body gravity, and video camera passes through 1 band of main body at this time
Dynamic fixed block 5 squeezes the hydraulic oil in first chamber 11 or second chamber 12, if the pressure of hydraulic oil compression is difficult to when smaller
Overcome the first spring 65 and the second bullet when pin 64 being made to slide into the position for being connected to the first oil-through hole 61 with the second oil-through hole 62
The elastic force of spring 66, then the hydraulic oil in first chamber 11 and second chamber 12 is difficult to that flowing balances the mutually by db valve 6
Oil pressure in one chamber 11 and second chamber 12, i.e. video camera will not relatively rotate with respect to crane large arm, it is difficult to adjust
The shooting angle of video camera.To solve the above problems, can be between 1 internal diameter of 4 outer diameter of centering block and main body and 5 internal diameter of fixed block
Certain gap is reserved between 2 outer diameter of main shaft, gap may range from 0.02mm~0.08mm, when 11 He of first chamber
When oil pressure difference between second chamber 12 is smaller, hydraulic oil in first chamber 11 and second chamber 12 can by centering block 4 with
The gap between gap and fixed block 5 and main shaft 2 between main body 1 is gradually slowly flowed, to balance first chamber 11 and
Oil pressure between two chambers 12, as the balance fixed block 5 of oil pressure is rotated relative to centering block 4, i.e., video camera is with respect to crane large arm
Rotation is to achieve the purpose that adjust camera angle.
As shown in figure 4, the side that end cap 3 is inserted into main body 1 is equipped with axle sleeve 31, end cap 3 is assembled far from one end of main body 1
There is outside framework oil seal 32 and abut set 33, abuts set 33 and be threadedly coupled with end cap 3 to push against fixed outside framework oil seal 32, axle sleeve 31, bone
Frame oil sealing 32 and abutting set 33 are coaxial with end cap 3 and main shaft 2.
As shown in figure 4, offering the hole 13 of changing oil in 1 outside and 1 inner cavity of main body of connection main body in main body 1, change oil on hole 13
It is screwed with sealing bolt.Hydraulic oil can be replaced or added into main body 1 by hole 13 of changing oil in this way.
The working process of this embodiment is as follows：
In conjunction with shown in Fig. 3 and Fig. 4, when lifting machine vibration is larger, video camera, which has, drives main body 1,5 phase of end cap 3 and fixed block
To the trend that main shaft 2 rotates, fixed block 5 squeezes the hydraulic oil in first chamber 11 or second chamber 12, and what is be extruded is hydraulic
Oil is entered in plunger hole 63 by the first oil-through hole 61 or the second oil-through hole 62, and is oppressed pin 64 and overcome 65 He of the first spring
The elastic force of second spring 66 slides in plunger hole 63, is connected to the first oil-through hole 61 with the second oil-through hole 62, to make first
Hydraulic oil in chamber 11 and second chamber 12 can circulate mutually to balance pressure, as hydraulic oil is in 11 He of first chamber
Flowing in second chamber 12, fixed block 5 can opposite centering block 4 rotate, due to hydraulic oil pass through db valve 6 flow and speed compared with
It is small, therefore video camera is more gentle relative to the rotation of crane and resets gently, and it is violent to guarantee that camera picture will not generate
It shakes.
In conjunction with shown in Fig. 3 and Fig. 4, when lifting machine vibration is smaller, video camera, which has, drives main body 1, end cap 3 and fixed block
5 trend rotated relative to main shaft 2, fixed block 5 squeeze the hydraulic oil in first chamber 11 or second chamber 12, the liquid being extruded
Pressure oil is entered in plunger hole 63 by the first oil-through hole 61 or the second oil-through hole 62, since vibration small camera drives fixed block
The trend that 5 opposite main shafts 2 move is smaller, and the insufficient pressure of hydraulic oil can be connected to the first oil-through hole to overcome pin 64 to be moved to
61 and second oil-through hole 62 position when the first spring 65 and second spring 66 elastic force, therefore first chamber 11 and second chamber
Hydraulic oil in 12 will not be circulated mutually by db valve 6, and such fixed block 5 will not rotate substantially relative to centering block 4, i.e. video camera
It will not rotate with respect to crane, to promote the synchronization extent of video camera and crane to reduce the rolling traverse of shooting picture
Degree.Meanwhile if when hydraulic oil continuous compression in first chamber 11 or second chamber 12, first chamber 11 and second chamber 12
Interior hydraulic oil can be gradually slow by the gap between centering block 4 and main body 1 and the gap between fixed block 5 and main shaft 2
Flowing, to balance the oil pressure between first chamber 11 and second chamber 12, as the balance fixed block 5 of oil pressure is with respect to 4 turns of centering block
Dynamic, i.e., video camera is very slowly rotated relative to crane large arm, to adjust the angle of video camera.
Embodiment two：
With embodiment one the difference is that the structure of db valve 6.Wherein the A-A in the present embodiment Fig. 5 is to diagrammatic cross-section
It is identical to diagrammatic cross-section structure as the A-A in one Fig. 1 of embodiment.
In conjunction with shown in Fig. 6 and Fig. 7, in the present embodiment, the first oil-through hole 61 is provided with centering block 4 or fixed block 5 is close
The side of first chamber 11, the second oil-through hole 62 are provided with centering block 4 or fixed block 5 close to the side of main body 1；Db valve 6 is also
Including intercommunicating pore 67 and regulating valve 68, intercommunicating pore 67 is provided with centering block 4 or fixed block 5 close to the side of second chamber 12, and
And intercommunicating pore 67 is located remotely from one end of the first oil-through hole 61, the insertion of regulating valve 68 be located at intercommunicating pore 67 and the second oil-through hole 62 it
Between plunger hole 63 in；The part that regulating valve 68 is located in plunger hole 63 offers the second oil-through hole of connection 62 and intercommunicating pore 67
Flow channels 681, and regulating valve 68 is the revolving body that can be rotated along axis.When the vibration of crane large arm is larger, camera shooting
The inertia of machine is larger, and first chamber 11 generates biggish oil pressure because of the relative rotation trend between video camera and crane large arm
When, the hydraulic oil in first chamber 11 enters in plunger hole 63 from the first oil-through hole 61, and squeezes pin 64 and overcome the first spring
65 and the elastic force of second spring 66 slided in plunger hole 63, be connected to the first oil-through hole 61 with the second oil-through hole 62, due to
Two oil-through holes 62 are bonded with 1 inner sidewall of main body and form certain sealing, and the hydraulic oil flowed into out of second oil-through hole 62 passes through
Second oil-through hole 62 cross pin 64 enter the other side plunger hole 63 in, finally the flow channels 681 Jing Guo regulating valve 68 from
Intercommunicating pore 67 flows out, into second chamber 12；Conversely, entering column from intercommunicating pore 67 after the hydraulic oil of second chamber 12 is pressurized
Consent 63 pushes pin 64 to overcome the first spring 65 and the elastic force of second spring 66 in plunger hole 63 after flow channels 681
Interior sliding makes to be connected between intercommunicating pore 67 and the first oil-through hole 61, to enter after so that the hydraulic oil in second chamber 12 is pressurized
In first chamber 11；By rotating regulating valve 68, flow channels 681 and the registration of plunger hole 63 change, to adjust
By the flow velocity of the hydraulic oil of plunger hole 63, flow channels 681 and the registration more high flow rate of plunger hole 63 are bigger, main body 1 with
Resistance when rotating between main shaft 2 is smaller, and video camera is easier to rotate relative to crane, and buffer capacity is poorer, but resistance to punching
It is stronger to hit ability, vice versa.
Therefore, in the frequent emergency stop of crane large arm, anxious open or be easy to happen under the operating condition of collision or the weight of video camera
It measures in biggish situation, rotating regulation valve 68 reduces the registration of flow channels 681 and plunger hole 63, flows through double open to reduce
The hydraulic oil flow rate of valve 6 reduces the shaking degree of video camera to increase the buffer capacity of hydraulic bjuffer, guarantees shooting picture
Stability；In the lesser situation of video camera gravity or when video camera impact resistance is poor, flow channels can be made
681 increase with the registration of plunger hole 63, to reduce the impact to video camera.
Preferably db valve 6 is provided on fixed block 5, since fixed block 5 and main body 1 are relatively fixed, such second is excessively oily
Sealing between hole 62 and main body 1 is opposite preferable.
In addition, after db valve 6 is provided on fixed block 5, one end of regulating valve 68 is inserted into as shown in Fig. 5 or Fig. 7
In plunger hole 63, the other end may pass through main body 1 and be tightly connected with main body 1.It also being capable of rotating regulation valve in this way outside main body 1
68, to adjust the registration between flow channels 681 and plunger hole 63.Instruction regulating valve 68 can also be arranged on the body 1 to open
The graduation mark of degree.
In the present embodiment, the first oil-through hole 61 is slotted hole, and the second oil-through hole 62 is close to one end of the first oil-through hole 61
In isosceles triangle, the other end of the second oil-through hole 62 is rectangle.Second chamber is flowed to from first chamber 11 in hydraulic oil in this way
During 12, the second oil-through hole 62 crosses sectional area of the pasta product between pin 64 and the first oil-through hole 61；Hydraulic oil from
During second chamber 12 flows into first chamber 11, the pasta product of crossing of the first oil-through hole 61 is pin 64 and the second oil-through hole 62
Between area of section.When two chambers compression is equal, shift length of the pin 64 in plunger hole 63 is identical, in pin 64
That wants can to guarantee the first oil-through hole 61 when same distance mobile towards two different directions crosses that pasta is long-pending and the second oil-through hole 62
To cross pasta product roughly the same, can guarantee suffered resistance substantially phase when main body 1 is rotated forward or inverted with respect to main shaft 2 in this way
Together.
In addition, the axle center of flow channels 681 and the axle center of regulating valve 68 are mutual as shown in figure 8, regulating valve 68 is revolving body
Vertically, the axle center of flow channels 681 and the outer peripheral surface of regulating valve 68 are tangent in the present embodiment, and regulating valve 68 is arranged in this way
When the intersection of plunger hole 63 and intercommunicating pore 67, plunger hole 63 and intercommunicating pore 67 can be directly connected to by flow channels 681.
As shown in figure 8, regulating valve 68, which is located at one end in plunger hole 63, offers preformed hole 682, preformed hole 682 along axle center
It is connected to flow channels 681.In this way, after being flowed through in the entrance preformed hole 682 of flow channels 681 with the hydraulic oil of compression, in oil
It is able to drive that regulating valve 68 is close to main body 1 under the extruding of pressure, increases the leakproofness of regulating valve 68 and main body 1.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of hydraulic pressure stabilizer, including main body（1）, main shaft（2）With two end caps（3）, main body（1）For the tubulose of both ends open
Body, two end caps（3）Sealing cover merging is fixed on main body（1）Both ends, main shaft（2）Through two end caps（3）And main shaft（2）With
Main body（1）Coaxial and and end cap（3）Rotary seal connection；Main body（1）With main shaft（2）Between cavity in be provided with centering block（4）
And fixed block（5）, centering block（4）With fixed block（5）By main body（1）With main shaft（2）Between cavity be divided into disconnected from each other first
Chamber（11）And second chamber（12）, first chamber（11）And second chamber（12）Filled with hydraulic oil, fixed block（5）With main body
（1）Inner sidewall it is relatively fixed, centering block（4）With main shaft（2）It is relatively fixed, which is characterized in that fixed block（5）Or centering block（4）
On offer db valve（6）, db valve（6）Including the first oil-through hole（61）, the second oil-through hole（62）And plunger hole（63）, plunger
Hole（63）It is provided with fixed block（5）Or centering block（4）It is interior, the first oil-through hole（61）With the second oil-through hole（62）It is provided with fixed block
（5）Or centering block（4）Outer surface, the first oil-through hole（61）With first chamber（11）And plunger hole（63）Connection, second is excessively oily
Hole（62）With second chamber（12）And plunger hole（63）Connection, plunger hole（63）Inside it is provided with pin（64）, the first spring（65）
And second spring（66）, pin（64）Positioned at the first spring（65）With second spring（66）Between, pin（64）With plunger hole
（63）It is slidingly sealed cooperation；Work as pin（64）, the first spring（65）And second spring（66）When in normal condition, pin（64）
By the first oil-through hole（61）With the second oil-through hole（62）Isolation.
2. a kind of hydraulic pressure stabilizer according to claim 1, which is characterized in that the first oil-through hole（61）With the second oil-through hole
（62）It is provided with fixed block respectively（5）Or centering block（4）Close to first chamber（11）And second chamber（12）Side.
3. a kind of hydraulic pressure stabilizer according to claim 1, which is characterized in that the first oil-through hole（61）It is provided with centering block
（4）Or fixed block（5）Close to first chamber（11）Side, the second oil-through hole（62）It is provided with centering block（4）Or fixed block
（5）Close to main body（1）Side；Db valve（6）It further include intercommunicating pore（67）And regulating valve（68）, intercommunicating pore（67）It is provided with pendulum
Block（4）Or fixed block（5）Close to second chamber（12）Side, and intercommunicating pore（67）It is located remotely from the first oil-through hole（61）
One end, regulating valve（68）Insertion is located at intercommunicating pore（67）With the second oil-through hole（62）Between plunger hole（63）It is interior；Regulating valve
（68）Positioned at plunger hole（63）Interior part offers the second oil-through hole of connection（62）With intercommunicating pore（67）Flow channels
（681）, and regulating valve（68）For the revolving body that can be rotated along axis.
4. a kind of hydraulic pressure stabilizer according to claim 3, which is characterized in that db valve（6）It is provided with fixed block（5）
It is interior.
5. a kind of hydraulic pressure stabilizer according to claim 4, which is characterized in that regulating valve（68）One end be inserted into plunger hole
（63）Interior, the other end passes through main body（1）And and main body（1）It is tightly connected.
6. a kind of hydraulic pressure stabilizer according to claim 5, which is characterized in that main body（1）On be provided with instruction regulating valve
（68）The graduation mark of aperture.
7. a kind of hydraulic pressure stabilizer according to claim 1, which is characterized in that centering block（4）Outer diameter and main body（1）Internal diameter it
Between and fixed block（5）Internal diameter and main shaft（2）There is gap between outer diameter, the range in gap is 0.02mm~0.08mm.
8. any a kind of hydraulic pressure stabilizer according to claim 1 ~ 7, which is characterized in that the first oil-through hole（61）It is oval
Hole, the extending direction and plunger hole of slotted hole（63）Axis is parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682327.XA CN108840241B (en) | 2018-06-27 | 2018-06-27 | A kind of hydraulic pressure stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682327.XA CN108840241B (en) | 2018-06-27 | 2018-06-27 | A kind of hydraulic pressure stabilizer |
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| CN108840241A true CN108840241A (en) | 2018-11-20 |
| CN108840241B CN108840241B (en) | 2019-10-01 |
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| DE10210756A1 (en) * | 2002-03-12 | 2003-10-16 | Sorg Reinhard | Rotating piston and surrounding cylinder operate as gas spring or mechanical oscillation generator |
| CN201526635U (en) * | 2009-11-02 | 2010-07-14 | 刘国义 | Rotary buffer |
| CN103373192A (en) * | 2012-04-20 | 2013-10-30 | 广州汽车集团股份有限公司 | Hydraulic horizontal stabilizer |
| CN203708391U (en) * | 2014-03-07 | 2014-07-09 | 宜昌泛海巨涛科技有限公司 | Automatic stabilization monitoring system |
| CN204038896U (en) * | 2014-08-28 | 2014-12-24 | 天津埃特维科技有限公司 | Single shaft hydraulic radial stabiliser |
| CN204041815U (en) * | 2014-08-28 | 2014-12-24 | 天津埃特维科技有限公司 | General hydraulic radial stabilizer |
| CN205423664U (en) * | 2015-10-29 | 2016-08-03 | 北京市捷瑞特弹性阻尼体技术研究中心 | Rotary damper |
| CN206309841U (en) * | 2016-12-14 | 2017-07-07 | 中国科学院合肥物质科学研究院 | A kind of single direction rotation damps bracket |
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2018
- 2018-06-27 CN CN201810682327.XA patent/CN108840241B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10210756A1 (en) * | 2002-03-12 | 2003-10-16 | Sorg Reinhard | Rotating piston and surrounding cylinder operate as gas spring or mechanical oscillation generator |
| CN201526635U (en) * | 2009-11-02 | 2010-07-14 | 刘国义 | Rotary buffer |
| CN103373192A (en) * | 2012-04-20 | 2013-10-30 | 广州汽车集团股份有限公司 | Hydraulic horizontal stabilizer |
| CN203708391U (en) * | 2014-03-07 | 2014-07-09 | 宜昌泛海巨涛科技有限公司 | Automatic stabilization monitoring system |
| CN204038896U (en) * | 2014-08-28 | 2014-12-24 | 天津埃特维科技有限公司 | Single shaft hydraulic radial stabiliser |
| CN204041815U (en) * | 2014-08-28 | 2014-12-24 | 天津埃特维科技有限公司 | General hydraulic radial stabilizer |
| CN205423664U (en) * | 2015-10-29 | 2016-08-03 | 北京市捷瑞特弹性阻尼体技术研究中心 | Rotary damper |
| CN206309841U (en) * | 2016-12-14 | 2017-07-07 | 中国科学院合肥物质科学研究院 | A kind of single direction rotation damps bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108840241B (en) | 2019-10-01 |
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