CN208865071U - Electro hydraulic gear - Google Patents
Electro hydraulic gear Download PDFInfo
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- CN208865071U CN208865071U CN201720127926.6U CN201720127926U CN208865071U CN 208865071 U CN208865071 U CN 208865071U CN 201720127926 U CN201720127926 U CN 201720127926U CN 208865071 U CN208865071 U CN 208865071U
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Abstract
The utility model provides a kind of electro hydraulic gear, including work head and kinetic pump.Work head includes that work package, hydraulic-driven component and commutation component, hydraulic-driven component are connected with work package, driving work package work；Commutation component provides the oil circulation of opposite both direction for hydraulic-driven component, and driving hydraulic-driven component moves back and forth.Kinetic pump is connected with commutation component, conveys hydraulic oil for commutation component.
Description
Technical field
The utility model relates to dangerous disaster relief equipment technology field, in particular to a kind of electro hydraulic gear.
Background technique
Forcible entry fire plant is widely used in the traffic accidents such as road and rail rescue, seismic disaster relief, building collapse
Rescue, the scenes of the accident such as airplane crash, salvage and fire can be abolished and be sheared to barrier, within first time
Stranded personnel are succoured, are very important tools in rescue and relief work.
Existing forcible entry fire plant is mostly hydraulic, and oil circuit can only be recycled in one direction after entering oil cylinder, i.e.,
Can only drive cylinder piston advances forward, the retrogressing of piston is just able to achieve after then needing manual draining, and use is very inconvenient, makees
Industry efficiency is very low, has seriously affected the time of rescue.Therefore, the working efficiency for how improving forcible entry fire plant becomes people
The major issue paid close attention to.
Utility model content
The utility model for overcome the deficiencies in the prior art, provides what a kind of achievable oil cylinder piston automatically moved back and forth
Electro hydraulic gear.
To achieve the goals above, the utility model provides a kind of electro hydraulic gear, including work head and kinetic pump.Work
Include that work package, hydraulic-driven component and commutation component, hydraulic-driven component are connected with work package as head, drives work package work
Make；Commutation component provides the oil circulation of opposite both direction for hydraulic-driven component.Kinetic pump is connected with commutation component, is
The component that commutates conveys hydraulic oil.
In an embodiment of the present invention, kinetic pump include driving motor, shaft, impeller assembly, eccentric shaft, piston and
The small pump housing.Shaft is connected with driving motor.Impeller assembly connection and shaft.Eccentric shaft and shaft are coaxially disposed.Piston and partially
Mating engagement.The small pump housing is connected with piston, has fuel-displaced component on the small pump housing.
In an embodiment of the present invention, kinetic pump further includes solenoid valve, and solenoid valve is connected with fuel-displaced component.
In an embodiment of the present invention, fuel-displaced component includes the adjusting screw being arranged on oil outlet, and successively
It is connected to the spring and steel ball adjusted on screw.
In an embodiment of the present invention, commutation component includes commutation ontology and conversion control.The ontology that commutates includes turning
Refoot seat, has fluid inlet orifice, Fluid-exiting apertures, the first connecting hole and the second connecting hole, fluid inlet orifice and power on conversion cradle
Pump is connected, and the first connecting hole and the second connecting hole are connected with hydraulic-driven component.Conversion control is connected with conversion cradle,
Converting has the first connecting tube, the second connecting tube and third connecting tube on control.
On the first station, the both ends of the second connecting tube are connected with fluid inlet orifice and Fluid-exiting apertures, and fluid connects through second
Adapter tube recycles between fluid inlet orifice and Fluid-exiting apertures, and fluid does not enter hydraulic-driven component；
In second station, the both ends of the first connecting tube are connected with the first connecting hole and Fluid-exiting apertures respectively, and third connects
The both ends of adapter tube are connected with the second connecting hole and fluid inlet orifice respectively, and fluid is through third connecting tube from the second connecting hole influent
The first cavity in driving assembly is pressed, the intracorporal fluid of the second chamber of hydraulic-driven component is through the first connecting hole, the first connecting tube
It is flowed out from Fluid-exiting apertures, forms the fluid circulation in first direction；
In 3rd station, the both ends of the first connecting tube are connected with the first connecting hole and fluid inlet orifice respectively, and third connects
The both ends of adapter tube are connected with the second connecting hole and Fluid-exiting apertures respectively, and fluid is through the first connecting tube from the first connecting hole influent
The second cavity in driving assembly is pressed, the intracorporal fluid of the first chamber of hydraulic-driven component is through the second connecting hole, third connecting tube
It is flowed out from Fluid-exiting apertures, forms the fluid circulation in second direction.
In an embodiment of the present invention, fluid inlet orifice and Fluid-exiting apertures are oppositely arranged, and the first connecting hole and second connects
It connects hole to be oppositely arranged, line and the first connecting hole center and the second connecting hole between fluid inlet orifice center and Fluid-exiting apertures center
Line between center is perpendicular.
In an embodiment of the present invention, conversion control and conversion cradle be rotatablely connected, by rotation conversion control come
So that commutation component switches between the first station, second station and 3rd station.
In an embodiment of the present invention, converting has limitation conversion control rotational angle on control and conversion cradle
Limiting section, limiting section include three arc grooves being arranged on conversion cradle and be arranged in conversion control on three arcs
The lug boss that connected in star matches, three arc grooves respectively with fluid inlet orifice, the first connecting hole and the second connecting hole is corresponding sets
It sets.
In an embodiment of the present invention, commutation component includes commutation ontology and conversion control.Have in commutation ontology
Fluid inlet tube and fluid outlet pipe.Conversion control is converted on control along being axially disposed in commutation ontology perpendicular to commutation ontology
With multiple axis through-hole parallel with fluid inlet tube direction, when flowing to conversion, conversion control is along the axis perpendicular to commutation ontology
To movement.
First oil pipe and the second oil pipe are connected to conversion control and hydraulic-driven component, form fluid circulation；
When converting control and being located at the first station, conversion control closure the first oil pipe and the second oil pipe, fluid fluid into
It is recycled between pipe and fluid outlet pipe；
When conversion control is located at second station, conversion control is mobile to the side of commutation ontology from the first station, fluid
Through-hole on converted control flows into the first oil pipe from fluid inlet tube, then flows into the first cavity of hydraulic driving assembly, hydraulic
The intracorporal fluid of the second chamber of driving assembly flows to fluid outlet pipe from the through-hole on the second oil pipe and conversion control, and fluid is hydraulic
The circulation in first direction is formed in driving assembly；
When conversion control is located at 3rd station, conversion control is mobile to the other side of commutation ontology from the first station, stream
Through-hole on the converted control of body flows into the second oil pipe from fluid inlet tube, then flows into the second cavity of hydraulic driving assembly, liquid
The intracorporal fluid of the first chamber of driving assembly is pressed to flow to fluid outlet pipe from the through-hole on the first oil pipe and conversion control, fluid is in liquid
Press the circulation that second direction is formed in driving assembly.
In an embodiment of the present invention, three through-holes are equipped at intervals on conversion control etc., fluid inlet tube includes four
Isodiametric inflow branch pipe, fluid outlet pipe include three diameters outflow branch pipe equal with the diameter of branch pipe is flowed into, and first flows into
Branch pipe, second flow into branch pipe and the first outflow branch pipe three setting corresponding with first through hole, and the diameter of first through hole is greater than one
The diameter of a outflow branch pipe but the diameter for being less than or equal to two outflow branch pipes；
Third flows into branch pipe and the second outflow branch pipe setting corresponding with the second through-hole, and the diameter of the second through-hole is greater than one
It flows out the diameter of branch pipe but is less than or equal to the diameter of two outflow branch pipes；
4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to an outflow branch pipe
Diameter；
First oil pipe includes the first oil circuit branch pipe and the second oil circuit branch pipe, the first oil circuit branch pipe and the second oil circuit branch pipe and the
One through-hole is correspondingly arranged；Second oil pipe includes third oil circuit branch pipe and the 4th oil circuit branch pipe, third oil circuit branch pipe and the second through-hole
It is correspondingly arranged, the 4th oil circuit branch pipe is correspondingly arranged with third through-hole；
Control is converted when station is converted, conversion control is equal to the mobile distance in commutation ontology side or the other side to be flowed into
The diameter of branch pipe.
Electro hydraulic gear provided by the utility model provides two by being arranged in work head to hydraulic-driven component
The commutation component of direction oil circulation come so that on first oil circulation direction hydraulic oil push oil cylinder piston travel forward,
And on second oil circulation direction, hydraulic oil pushes oil cylinder piston to be retracted into initial position automatically, realizes oil cylinder piston
It automatically moves back and forth, without carrying out artificial draining, there is great working efficiency, trapped person can be carried out within first time
Rescue.
For above and other objects, features and advantages of the utility model can be clearer and more comprehensible, preferable reality is cited below particularly
Example is applied, and cooperates attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of the electro hydraulic gear of an embodiment of the present invention offer.
In Fig. 1 shown in Fig. 2 commutate component in commutate ontology structural schematic diagram.
Fig. 3 show the structural schematic diagram at another visual angle for the ontology that commutates in Fig. 2.
Fig. 4 show the structural schematic diagram that control is converted in Fig. 1.
Fig. 5 show the assembling schematic diagram of conversion cradle and conversion control when commutation component is located at the first station.
The fluid that Fig. 6 show when commutation component is located at the first station flows to schematic diagram.
Fig. 7 show the assembling schematic diagram of conversion cradle and conversion control when commutation component is located at second station.
The fluid that Fig. 8 show when commutation component is located at second station flows to schematic diagram.
Fig. 9 show the assembling schematic diagram of conversion cradle and conversion control when commutation component is located at 3rd station.
The fluid that Figure 10 show when commutation component is located at 3rd station flows to schematic diagram.
Figure 11 show the structural schematic diagram for the electro hydraulic gear that another embodiment of the utility model provides.
Figure 12 show the structural representation when conversion control that another embodiment of the utility model provides is located at the first station
Figure.
Figure 13 show structural schematic diagram when conversion control shown in Figure 12 is located at second station.
Figure 14 show structural schematic diagram when conversion control shown in Figure 12 is located at 3rd station.
Specific embodiment
As shown in Figure 1, electro hydraulic gear provided in this embodiment, including work head 100 and kinetic pump 200.Work head
100 include that work package 1, hydraulic-driven component 2 and commutation component 3, hydraulic-driven component 2 are connected with work package 1, drives work
Part 1 works.Commutation component 3 is that hydraulic-driven component 2 provides the oil circulation of opposite both direction.Kinetic pump 200 and commutation group
Part 3 is connected, and conveys hydraulic oil for commutation component 3.
In this present embodiment, work package 1 is clipper.However, the utility model is not limited in any way this.In other realities
It applies in example, workplace 1 can be to cut to expand other work packages such as device, expander or jacking machine.
In this present embodiment, kinetic pump 200 include driving motor 201, shaft 202, impeller assembly 203, eccentric shaft 204,
Piston 205 and the small pump housing 206.Shaft 202 is connected with driving motor 201.The connection of impeller assembly 203 and shaft 202.Eccentric shaft
204 are coaxially disposed with shaft 202.Piston 205 is matched with eccentric shaft 204.The small pump housing 206 is connected with piston 205, the small pump housing
There is fuel-displaced component on 206.In this present embodiment, fuel-displaced component includes the adjusting screw 206a being arranged on oil outlet, and
It is connected to the spring 206b and steel ball 206c adjusted on screw 206a in turn.
Specific working principle are as follows: driving motor 201 drives shaft rotation, and impeller assembly 203 is rotated with shaft 202, will
Hydraulic oil is sucked into the small pump housing 206.Shaft 202 drives eccentric shaft 204 to be rotated, and the rotary motion meeting is so that piston carries out
It moves back and forth, generates high pressure in the small pump housing 206.The elastic force for overcoming spring 206b is made shape between steel ball and oil outlet by the high pressure
At oil discharge passage, hydraulic oil is exported through power oil pump outlet line to commutation component 3.
In this present embodiment, hydraulic-driven component 2 includes oil cylinder 21, oil cylinder piston 22 and joining beam.Oil cylinder 21 and commutation group
Part 3 is connected.Oil cylinder piston 22 is set to oil cylinder 21, and the oil pressure in oil cylinder 21 pushes oil cylinder piston 22 to move.Joining beam wherein one
End is connected with oil cylinder piston 22, and the other end is connected with work package 1.
In this present embodiment, as shown in Figures 2 to 4, commutation component 3 includes commutation ontology 31 and conversion control 32.Commutation
Ontology 31 includes conversion cradle 311, has fluid inlet orifice 3111, Fluid-exiting apertures 3112, the first connecting hole on conversion cradle 311
3113 and second connecting hole 3114, the first connecting hole 3113 and the second connecting hole 3114 are connected with oil cylinder 21.Convert control 32
It is connected with conversion cradle 311, converting has the first connecting tube 321, the second connecting tube 322 and third connecting tube on control 32
323。
To be conveniently replaceable maintenance, in this present embodiment, detachable company between setting commutation pedestal 311 and commutation ontology 31
It connects.
The working principle of commutation component 3 is discussed in detail below with reference to Fig. 5 to Figure 10:
Conversion cradle and conversion when commutation component 3 provided in this embodiment is located at the first station is set forth in Fig. 5 and Fig. 6
The assembling schematic diagram of control and fluid flow to schematic diagram.On the first station, the both ends E and E1 of the second connecting tube 322 with
Fluid inlet orifice 3111 is connected with Fluid-exiting apertures 3112, and hydraulic oil goes out through the second connecting tube 322 in fluid inlet orifice 3111 and fluid
It is recycled between hole 3112, hydraulic oil does not enter oil cylinder, and the oil cylinder piston 22 being connected with oil cylinder does not work.
Conversion cradle and conversion when commutation component provided in this embodiment is located at second station is set forth in Fig. 7 and Fig. 8
The assembling schematic diagram of control and fluid flow to schematic diagram.At this point, as shown in fig. 7, the both ends D and D1 of the first connecting tube 321
It is connected respectively with the first connecting hole 3113 and Fluid-exiting apertures 3112, the both ends F1 and F of third connecting tube 323 connect with second respectively
It connects hole 3114 to be connected with fluid inlet orifice 3111, hydraulic oil flows into oil cylinder 21 from the second connecting hole 3114 through third connecting tube 323
The first cavity 211 in, push oil cylinder piston 22 to travel forward, the fluid in the second cavity 212 is through the first connecting hole 3113, the
One connecting tube 321 flows out from Fluid-exiting apertures 3112 and flows into the oil-in chamber 207 in the kinetic pump in Fig. 1, forms first direction
Fluid circulation.
Conversion cradle and conversion when commutation component provided in this embodiment is located at 3rd station is set forth in Fig. 9 and Figure 10
The assembling schematic diagram of control and fluid flow to schematic diagram.At this point, the both ends D1 and D of the first connecting tube 321 are respectively with first
Connecting hole 3113 is connected with fluid inlet orifice 3111, the both ends F and F1 of third connecting tube 323 respectively with the second connecting hole 3114 and
Fluid-exiting apertures 3112 are connected, and hydraulic oil flows into in-oil cylinder second cavity from the first connecting hole 3113 through the first connecting tube 321
212, oil cylinder piston 22 is pushed back into initial position, the hydraulic oil in the first cavity 211 connects through the second connecting hole 3114 and third
Adapter tube 323 flows out from Fluid-exiting apertures 3112 and flows into the oil-in chamber 207 in the kinetic pump in Fig. 1, forms the stream in second direction
Body circulation.The alternation of second station and 3rd station enables oil cylinder piston 22 to realize reciprocating motion automatically, compared to tradition
Electro hydraulic gear, electro hydraulic gear provided in this embodiment due to can be realized automatically two opposite directions oil circuit turn
It changes, without carrying out manual draining, greatly improves work efficiency.
In this present embodiment, fluid inlet orifice 3111 and Fluid-exiting apertures 3112 are oppositely arranged, the first connecting hole 3113 and second
Connecting hole 3114 is oppositely arranged, and the line between the center of fluid inlet orifice 3111 and the center of Fluid-exiting apertures 3112 is connect with first
Line between the center in hole 3113 and the center of the second connecting hole 3114 is perpendicular, and the first connecting hole 3113 arrives fluid inlet orifice
The distance between 3111 and Fluid-exiting apertures 3112 are equal, the second connecting hole 3114 to fluid inlet orifice 3111 and Fluid-exiting apertures 3112 it
Between be equidistant.It is corresponding, as shown in figure 4,323 structure of the first connecting tube 321 and third connecting tube on conversion control 32
Two sides that are identical and being symmetricly set on the second connecting tube 322.The setting so that, when conversion control 32 is by the first station to the left and right two
Side is able to achieve the switching of second station and 3rd station when rotating.However, the utility model is not limited in any way this.
In this present embodiment, it converts and is rotatablely connected between control 32 and conversion cradle 311, to realize between different station
Switching, it is preferred that the first connecting tube 321 of setting, the second connecting tube 322 and third connecting tube 323 are being converted in arc-shaped setting
On control 32.The setting so that user using 323 conduct of the first connecting tube 321, the second connecting tube 322 and third connecting tube
Swing handle converts the rotation of control 32 to realize.However, the utility model is not limited in any way this.
To realize that the accurate switching between the first station, second station and 3rd station can be set in other the present embodiment
The limiting section on conversion control 32 and conversion cradle 311 with limitation conversion control rotational angle is set, limiting section includes that setting exists
Three arc grooves on conversion cradle and the lug boss matched with three arc grooves being arranged on conversion control, three
A arc groove is correspondingly arranged with fluid inlet orifice, the first connecting hole and the second connecting hole respectively.However, the utility model to this not
It is limited in any way.It, can be in conversion cradle upper fluid into corresponding to hole, the first connecting hole and the second connecting hole in other embodiments
Position on three station location markers are set, corresponding convert is also equipped with rotation mark on control, when rotation mark with it is corresponding
Station location marker rotate in place to characterization conversion control when corresponding to.
This gives a kind of specific structures of commutation component 3.However, the utility model does not make any limit to this
It is fixed.In other embodiments, commutation component 3 may include commutation ontology 31 ' and conversion control 32 '.Have in commutation ontology 31 '
Fluid inlet tube 311 ' and fluid outlet pipe 312 '.Conversion control 32 ' is axially disposed within commutation ontology along perpendicular to commutation ontology 31 '
In 31 ', converts on control 32 ' with the through-hole that multiple axis are parallel with fluid inlet tube direction, convert control when flowing to conversion
Along the axial movement perpendicular to commutation ontology 31 '.First oil pipe 33 ' and the second oil pipe 34 ' be connected to conversion control 32 ' and
Hydraulic-driven component 2 forms fluid circulation.
Specifically, conversion control 32 ' is first-class to be equipped at intervals with three through-holes, fluid inlet tube 311 ' includes four isodiametric
Branch pipe is flowed into, fluid outlet pipe 312 ' includes three diameters outflow branch pipe equal with the diameter of branch pipe is flowed into, and first flows into branch pipe
3111 ', second flows into branch pipe 3112 ' and the first outflow 3121 ' three of branch pipe setting corresponding with first through hole 321 ', and first is logical
The diameter in hole 321 ' is greater than the diameter of an outflow branch pipe but is less than or equal to the diameter of two outflow branch pipes.
Third flows into branch pipe 3113 ' and the second outflow setting corresponding with the second through-hole 322 ' of branch pipe 3122 ', the second through-hole
322 ' diameter is greater than the diameter of an outflow branch pipe but is less than or equal to the diameter of two outflow branch pipes.4th flows into branch pipe
3114 ' settings corresponding with third through-hole 323 ', the diameter of third through-hole 323 ' are less than or equal to the diameter of an outflow branch pipe.
In this present embodiment, the diameter of first through hole 321 ' and the second through-hole 322 ' is equal to two outflow branch pipe diameters, third through-hole
323 ' are equal to the diameter of an outflow branch pipe.However, the utility model is not limited in any way this.
First oil pipe 33 ' includes the first oil circuit branch pipe 331 ' and the second oil circuit branch pipe 332 ', the first oil circuit branch pipe 331 ' with
Second oil circuit branch pipe 332 ' is correspondingly arranged with first through hole 321 '；Second oil pipe 34 ' includes third oil circuit branch pipe 341 ' and the 4th
Oil circuit branch pipe 342 ', third oil circuit branch pipe 341 ' are correspondingly arranged with the second through-hole 322 ', and the 4th oil circuit branch pipe 342 ' and third are logical
Hole 323 ' is correspondingly arranged.
As shown in figure 12, when converting control 32 ' and being located at the first station, conversion control 32 ' the first oil pipe 33 ' of closure and the
Two oil pipes 34 ', fluid recycle between fluid inlet tube 311 ' and fluid outlet pipe 312 ', do not enter the oil cylinder on right side in figure, oil cylinder
It does not work.
It (is moved in Figure 13 to the top of commutation ontology 31 ' when the side where conversion control to commutation ontology 31 ' is mobile
It is dynamic), conversion control 32 ' is located at second station, and mobile distance is equal to the diameter for flowing into branch pipe.Oil circuit direction at this time are as follows: stream
Through-hole on the converted control 32 ' of body flows into the first oil pipe 33 ' from fluid inlet tube 321 ', then flows into the first cavity of oil cylinder 21
Stream in 211 (cavity of oil cylinder is separated into the first cavity 211 and the second cavity 212 by oil cylinder piston 22), in the second cavity 212
Body flows to fluid outlet pipe 312 ' from the through-hole on the second oil pipe 34 ' and conversion control 32 '.It is specific as follows:
First, which flows into branch pipe 3111 ' and second, flows into branch pipe 3112 ' and first through hole 321 ' relatively, the first oil circuit branch pipe
331 ' is opposite with the other end of first through hole 321 ', and the second outflow branch pipe 3122 ' and third oil circuit branch pipe 341 ' are arranged second
The two sides of through-hole 322 '.The setting is so that fluid flows into branch pipe 3111 ' through first and the second inflow branch pipe 3112 ' flows into first and leads to
Hole 321 ' is flowed by the first oil circuit branch pipe 331 ' in the first cavity 211 of hydraulic cylinder；212 memory of the second cavity of hydraulic cylinder
The fluid stayed flows into the second through-hole 322 ' through third oil circuit branch pipe 341 ', flows out, realizes hydraulic by the second outflow branch pipe 3122 '
The circulation in first direction in cylinder, the at this time piston advances forward in hydraulic cylinder.
Opposite, when the other side of conversion 32 ' Xiang Huanxiang ontology 31 ' of control is mobile (moving down in Figure 14), conversion is controlled
Part 32 ' is located at 3rd station, and mobile distance is equal to the diameter for flowing into branch pipe.Oil circuit direction at this time are as follows: the converted control of fluid
Through-hole on part 32 ' flows into the second oil pipe 34 ' from fluid inlet tube 311 ', then flows into the second cavity 212, in the first cavity 211
Fluid flow to fluid outlet pipe 312 ' from the through-hole on the first oil pipe 33 ' and conversion control.It is specific as follows:
4th inflow branch pipe 3114 ' and the 4th oil circuit branch pipe 342 ' are respectively communicated with third through-hole 323 '；Second oil circuit branch pipe
332 ' and first outflow branch pipe 3121 ' be connected to respectively with first through hole 321 '.The setting is so that fluid flows into branch pipe through the 4th
3114 ' flow into third through-holes 323 ', are flowed into the second cavity 212 of hydraulic cylinder by the 4th oil circuit branch pipe 342 ', hydraulic cylinder the
Fluid in one cavity 211 is flowed out through the second oil circuit branch pipe 332 ', first through hole 321 ' and the first outflow branch pipe 3121 '.It realizes
Piston is pushed back initial position by the circulation in second direction in hydraulic cylinder, and piston retreats.Commutate component shown in Figure 12 to Figure 14
Two-way oil circulation equally may be implemented.
Electro hydraulic gear provided in this embodiment is by being arranged reversing arrangement in work head come so that into hydraulic drive
Hydraulic oil in dynamic component has the circulation of both direction, automatically moves back and forth so that oil cylinder piston is able to achieve.Further
, it is to pass through solenoid valve into the hydraulic oil in hydraulic-driven component in traditional forcible entry fire plant with kinetic pump
It is controlled, and solenoid valve belongs to electric device and not only needs to consume a large amount of electric energy, is unfavorable for the use of remote way power-off, together
When power equipment be easy to appear failure, will appear the problem that oil pressure is excessive in oil cylinder when solenoid valve pipe is continuous.And the present embodiment
There is the first station by setting commutation component 3, under the station, oil circuit is only recycled between oil inlet pipe and flowline, without
Into in oil cylinder, the problem that oil pressure is excessive in oil cylinder when battery valve breaks down can effectively avoid.
However, the utility model is not limited in any way this.In other embodiments, as shown in figure 11, kinetic pump 200 is also
Including solenoid valve 208, solenoid valve 208 is connected with fuel-displaced component.Specific working principle is, in initial stage solenoid valve 208
It opens, the flowline 208b and fuel-displaced component being connected on solenoid valve 208.Driving motor 201 drives shaft rotation, impeller assembly
203 rotate with shaft 202, and hydraulic oil is sucked into the small pump housing 206.Shaft 202 drives eccentric shaft 204 to be rotated, the rotation
Dynamic meeting is transported so that piston moves back and forth, the small pump housing 206 is interior to generate high pressure.The high pressure will overcome the elastic force of spring 206b to make
Form oil discharge passage between steel ball and oil outlet, hydraulic oil enters battery valve 208 from the oil inlet pipe on solenoid valve, on solenoid valve
Flowline 208b hydraulic oil is delivered to the commutation component 3 in work head.During oil return, what Fluid-exiting apertures 3112 flowed out
Hydraulic oil returns to oil-in chamber 207 through the oil return pipe 208a on solenoid valve.
Electro hydraulic gear provided by the utility model provides two by being arranged in work head to hydraulic-driven component
The commutation component of direction oil circulation come so that on first oil circulation direction hydraulic oil push oil cylinder piston travel forward,
And on second oil circulation direction, hydraulic oil pushes oil cylinder piston to be retracted into initial position automatically, realizes oil cylinder piston
It automatically moves back and forth, without carrying out artificial draining, there is great working efficiency, trapped person can be carried out within first time
Rescue.
Although the utility model is disclosed above by preferred embodiment, it is not intended to limit the utility model, it is any
This known those skilled in the art can make some changes and embellishment without departing from the spirit and scope of the utility model, therefore this is practical
Novel protection scope is subject to view claims range claimed.
Claims (8)
1. a kind of electro hydraulic gear characterized by comprising
Work head, including work package, hydraulic-driven component and commutation component, hydraulic-driven component are connected with work package, drive
Work package work；
Commutation component provides the oil circulation of opposite both direction for hydraulic-driven component；
Kinetic pump is connected with the commutation component, conveys hydraulic oil for commutation component；
The commutation component includes:
Commutate ontology, including conversion cradle, has fluid inlet orifice, Fluid-exiting apertures, the first connecting hole and the on the conversion cradle
Two connecting holes, the fluid inlet orifice are connected with kinetic pump, first connecting hole and the second connecting hole and hydraulic-driven component
It is connected；
Convert control, and the conversion cradle detachable connection there is the first connecting tube, second to connect on the conversion control
Pipe and third connecting tube；
On the first station, the both ends of the second connecting tube are connected with fluid inlet orifice and Fluid-exiting apertures, and fluid is through the second connecting tube
It is recycled between fluid inlet orifice and Fluid-exiting apertures, fluid does not enter hydraulic-driven component；
In second station, the both ends of the first connecting tube are connected with the first connecting hole and Fluid-exiting apertures respectively, third connecting tube
Both ends be connected respectively with the second connecting hole and fluid inlet orifice, fluid flows into hydraulic drive from the second connecting hole through third connecting tube
The first cavity in dynamic component, the intracorporal fluid of the second chamber of hydraulic-driven component is through the first connecting hole, the first connecting tube from stream
Body portals outflow, forms the fluid circulation in first direction；
In 3rd station, the both ends of the first connecting tube are connected with the first connecting hole and fluid inlet orifice respectively, third connecting tube
Both ends be connected respectively with the second connecting hole and Fluid-exiting apertures, fluid flows into hydraulic drive from the first connecting hole through the first connecting tube
The second cavity in dynamic component, the intracorporal fluid of the first chamber of hydraulic-driven component is through the second connecting hole, third connecting tube from stream
Body portals outflow, forms the fluid circulation in second direction.
2. electro hydraulic gear according to claim 1, which is characterized in that the kinetic pump includes:
Driving motor；
Shaft is connected with driving motor；
Impeller assembly, connection and the shaft；
Eccentric shaft is coaxially disposed with the shaft；
Piston is matched with the eccentric shaft；
The small pump housing, is connected with piston, has fuel-displaced component on the small pump housing.
3. electro hydraulic gear according to claim 2, which is characterized in that the kinetic pump further includes solenoid valve, described
Solenoid valve is connected with fuel-displaced component.
4. electro hydraulic gear according to claim 2, which is characterized in that the fuel-displaced component includes being arranged in oil outlet
On adjusting screw, and be connected in turn adjust screw on spring and steel ball.
5. electro hydraulic gear according to claim 1, which is characterized in that fluid inlet orifice and Fluid-exiting apertures are oppositely arranged,
First connecting hole and the second connecting hole are oppositely arranged, and the line between fluid inlet orifice center and Fluid-exiting apertures center is connect with first
Line between hole center and the second connecting hole center is perpendicular.
6. electro hydraulic gear according to claim 1, which is characterized in that conversion control and conversion cradle are rotatablely connected,
By rotation conversion control come so that commutation component switches between the first station, second station and 3rd station.
7. electro hydraulic gear according to claim 1, which is characterized in that have on the conversion control and conversion cradle
Limitation conversion control rotational angle limiting section, the limiting section include three arc grooves being arranged on conversion cradle and
Be arranged in conversion control on the lug boss matched with three arc grooves, three arc grooves respectively with fluid
It is correspondingly arranged into hole, the first connecting hole and the second connecting hole.
8. electro hydraulic gear according to claim 1, which is characterized in that the commutation component includes:
Commutate ontology, has fluid inlet tube and fluid outlet pipe in the commutation ontology；
Control is converted, along being axially disposed in commutation ontology perpendicular to the commutation ontology, is had on the conversion control more
A axis through-hole parallel with fluid inlet tube direction, when flowing to conversion, conversion control is moved along perpendicular to the axial of commutation ontology
It is dynamic；
First oil pipe and the second oil pipe are connected to conversion control and hydraulic-driven component, form fluid circulation；
When converting control and being located at the first station, conversion control blocks the first oil pipe and the second oil pipe, fluid fluid inlet tube with
It is recycled between fluid outlet pipe；
When conversion control is located at second station, conversion control is mobile to the side of commutation ontology from the first station, fluid warp turn
The through-hole changed on control flows into the first oil pipe from fluid inlet tube, then flows into the first cavity of hydraulic driving assembly, hydraulic-driven
The intracorporal fluid of the second chamber of component flows to fluid outlet pipe from the through-hole on the second oil pipe and conversion control, and fluid is in hydraulic-driven
The circulation in first direction is formed in component；
When conversion control is located at 3rd station, conversion control is mobile to the other side of commutation ontology from the first station, fluid warp
The through-hole converted on control flows into the second oil pipe from fluid inlet tube, then flows into the second cavity of hydraulic driving assembly, hydraulic drive
The intracorporal fluid of the first chamber of dynamic component flows to fluid outlet pipe from the through-hole on the first oil pipe and conversion control, and fluid is in hydraulic drive
The circulation in second direction is formed in dynamic component；
Three through-holes are equipped at intervals on the conversion control etc., fluid inlet tube includes four isodiametric inflow branch pipes, and fluid goes out
Pipe includes three diameters outflow branch pipe equal with the diameter of branch pipe is flowed into, and first flows into branch pipe, the second inflow branch pipe and first
Flow out branch pipe three setting corresponding with first through hole, the diameter of first through hole be greater than one flow out the diameter of branch pipe but be less than or
The diameter of branch pipe is flowed out equal to two；
Third flows into branch pipe and the second outflow branch pipe setting corresponding with the second through-hole, and the diameter of the second through-hole is greater than an outflow
The diameter of branch pipe but the diameter for being less than or equal to two outflow branch pipes；
4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to the straight of an outflow branch pipe
Diameter；
First oil pipe includes the first oil circuit branch pipe and the second oil circuit branch pipe, and the first oil circuit branch pipe and the second oil circuit branch pipe and first lead to
Hole is correspondingly arranged；Second oil pipe includes third oil circuit branch pipe and the 4th oil circuit branch pipe, and third oil circuit branch pipe is corresponding with the second through-hole
Setting, the 4th oil circuit branch pipe are correspondingly arranged with third through-hole；
Control is converted when station is converted, conversion control is equal to the mobile distance in commutation ontology side or the other side flows into branch pipe
Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720127926.6U CN208865071U (en) | 2017-02-13 | 2017-02-13 | Electro hydraulic gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720127926.6U CN208865071U (en) | 2017-02-13 | 2017-02-13 | Electro hydraulic gear |
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| CN208865071U true CN208865071U (en) | 2019-05-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581879A (en) * | 2017-02-13 | 2017-04-26 | 杭州众铎消防科技有限公司 | Electric hydraulic device |
| CN112370672A (en) * | 2020-11-20 | 2021-02-19 | 北方工业大学 | Expanding rod type pry for rescuing ruin life after earthquake |
-
2017
- 2017-02-13 CN CN201720127926.6U patent/CN208865071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581879A (en) * | 2017-02-13 | 2017-04-26 | 杭州众铎消防科技有限公司 | Electric hydraulic device |
| CN112370672A (en) * | 2020-11-20 | 2021-02-19 | 北方工业大学 | Expanding rod type pry for rescuing ruin life after earthquake |
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Effective date of registration: 20220505 Address after: 310056 room 1201, 12 / F, building 1, No. 400, jianger Road, Changhe street, Binjiang District, Hangzhou, Zhejiang Province Patentee after: Hangzhou oudun Hydraulic Technology Co.,Ltd. Address before: 310000 530, floor 5, building e, No. 688, Bin'an Road, Changhe street, Binjiang District, Hangzhou, Zhejiang Province Patentee before: HANGZHOU ZHONGDUO FIRE-FIGHTING SCIENCE & TECHNOLOGY Co.,Ltd. |
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