CN109707679A - Device by hydraulic press and for driving the electric motor of hydraulic press to constitute - Google Patents
Device by hydraulic press and for driving the electric motor of hydraulic press to constitute Download PDFInfo
- Publication number
- CN109707679A CN109707679A CN201811248876.2A CN201811248876A CN109707679A CN 109707679 A CN109707679 A CN 109707679A CN 201811248876 A CN201811248876 A CN 201811248876A CN 109707679 A CN109707679 A CN 109707679A
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- China
- Prior art keywords
- transmission mechanism
- electric motor
- hydraulic press
- hydraulic
- flywheel
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Classifications
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20569—Type of pump capable of working as pump and motor
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/633—Electronic controllers using input signals representing a state of the prime mover, e.g. torque or rotational speed
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Power Transmission Devices (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The present invention relates to a kind of devices being made of hydraulic press, the electric motor for driving hydraulic press, the flywheel reservoir for storing mechanical energy and the transmission mechanism for flywheel reservoir to be connected on electric motor and hydraulic press.According to the present invention, in this device, electric motor and hydraulic press are with the first rotational speed, and the flywheel of flywheel reservoir is then with the second rotational speed.The ratio of revolving speed is determined by the transmission ratio of transmission mechanism.Furthermore, it is proposed, according to the invention, for controlling the hydraulic unit driver of hydraulic consumption equipment equipped with this device.
Description
Technical field
The present invention relates to a kind of devices by hydraulic press and for driving the electric motor of the hydraulic press to constitute.
Background technique
10 2,011 011 750 A1 of DE shows a kind of hydraulic unit driver for press machine, in the press machine, liquid
Press or hydraulic pump are connected on electric motor by reduction gearing mechanism.It is possible thereby to preferably utilize electric motor and pump
Compared to the range of speeds of bigger permission.
197 01 671 A1 of DE shows a kind of hydraulic unit driver for injection molding machine, in the hydraulic unit driver, electricity
Dynamic motor, flywheel and the hydraulic pump that can be adjusted torsionally are coupled to each other.Flywheel is used as the reservoir of mechanical energy herein.It therefore can
The demand load peak value that hydraulic consumption equipment is manipulated with the stored inertia energy by flywheel, without making electric motor
Overload.
Hydraulic pump is mostly based on the Machine Design of their high requests and is directed to the range of speeds between 0 and 3000 U/min
It is designed.But the energy storage capacity of flywheel is with square rising of its revolving speed.
Summary of the invention
The task of the present invention is in the hydraulic power supply device being made of hydraulic press and electric motor as efficiently as possible
Use flywheel reservoir.
The task is wanted by the right for the device by hydraulic press and for driving the electric motor of the hydraulic press to constitute
Ask 1 feature and by for hydraulic unit driver claim 13 feature solve.
Therefore a kind of transmission mechanism is set according to the present invention, drives flywheel reservoir with high revolving speed.Electric motor and liquid
Then the arrangement based on component is both run with lower revolving speed press.
In this way can by the mechanical axis connection between electric motor and hydraulic press designed for high torque (HT) with
And the maximum power for electric motor.Conversely, transmission mechanism must then be designed only for torque differences, torque differences are electronic
Difference between the maximum torque of motor and the maximum required driving moment of hydraulic press.Nevertheless, still can be in high revolving speed
The lower higher energy storage capacity compared with above-mentioned 197 01 671 A1 of DE using flywheel reservoir.Flywheel reservoir can be set
Count smaller, gentlier and advantageously.
Conversely, if flywheel to be simply bonded on to the height of transmission mechanism in above-mentioned 10 2,011 011 750 A1 of DE
Revolving speed side, that is, directly couple with electric motor, then the inevitable full driving force required according to the maximum of hydraulic press of transmission mechanism
Square is designed.
According to the permitted range of speeds of flywheel reservoir, become to be reasonably that transmission mechanism design has in 1:2 and 1:
Transmission ratio between 10.Then the rated speed of flywheel is just between 6000 revs/min and 40000 revs/min.
When the flywheel reservoir for having higher rated speed is available, then transmission can certainly be adjusted correspondingly
Than to make full use of the maximum rated speed of flywheel reservoir well as far as possible.
Advantageous design scheme is the theme of dependent claims.
The flywheel of flywheel reservoir preferably torsionally or is mechanically coupled to the output shaft of transmission mechanism.Concept " connection " exists
Should represent arbitrary antitorque axis-axis or axis-sleeve (Nabe) connection in the application, and can for example including flange, specially
The axis of industry-axis connector, grafting teeth portion, shroud member with key or shrink fit axis-muff-joint device.
In addition, electric motor and hydraulic press are preferably coupled to input terminal, especially it is connected on the input shaft of transmission mechanism.
When hydraulic press couples with the output shaft of electric motor and transmission mechanism is connected on the feed-through of hydraulic press, obtain
Obtained a kind of particularly simple structure of the system for the electro-hydraulic pressure being made of hydraulic press, electric motor and transmission mechanism.Especially may be used
To use standarized component, the i.e. hydraulic press with feed-through (Durchtrieb).
The electric motor with the second output shaft alternatively can be set, transmission mechanism is connected on second output shaft.
Equally can by the output shaft connection of the input stage of transmission mechanism and electric motor and this output shaft is same can
For driving hydraulic press.But jackshaft can also be set, jackshaft is torsionally connect with the input stage of transmission mechanism.This technology
Scheme is especially to repacking formula using beneficial.It can be replaced for example with the input stage of jackshaft or transmission mechanism mounted in electric motor
Clutch between hydraulic press.
Transmission mechanism has at least one first gear stage according to a kind of preferred design scheme.This gear stage preferably by
It is configured to spur gear transmission mechanism or is configured to belt gear.But planetary gear transmission mechanism or rolling element also can be used
Transmission mechanism.Belt gear is insensitive to torque overload and can particularly simply be installed at existing electric motor-
On hydraulic machine unit.Spur gear transmission mechanism can advantageously be bought in the market and the maturation in terms of its efficiency.Similarly say
It is bright to be also applied for planetary gear transmission mechanism, especially multistage planetary gear transmission mechanism.Last-mentioned planetary gear passes
Motivation structure also has the additional advantage of the high transmission ratio within the scope of double figures.
Another preferred design scheme regulation, transmission mechanism is configured to belt gear and belt pulley is fixed on
On the output shaft of electric motor or it is fixed on jackshaft above-mentioned.
The input element of transmission mechanism can be configured to feed-through in the variant schemes illustrated before, thus it is one
Axis can be contained on side in ferrule element formed thereon and be risen on its other side with aixs cylinder.With this input
Transmission mechanism can be integrated into a simple manner in existing or newly-designed electric motor-hydraulic machine unit by element.
It, can be at wide turn with the driving adjuster when described device additionally has the driving adjuster for electric motor
When being variably adjusted the revolving speed of electric motor in fast range, available energy can be than with invariable in flywheel reservoir
Considerably better utilization is obtained in the case of the standard motor of rotational speed.In addition, the torque quilt that the maximum of electric motor is required
It is designed smaller.
Hydraulic unit driver equipped with described device can be electrically connected with output high-power, same high without electric motor
Connect power.Electric motor can be exceeded for the power that hydraulic consumption equipment uses ten times of connection power or more.In addition,
The Quality Design of flywheel itself can be obtained by the higher revolving speed using flywheel reservoir smaller.
When hydraulic press is designed to adjustment, that is to say, that with adjustment device, can be adjusted or be adjusted with the adjustment device
When the pressure or feed flow of the hydraulic medium that section is exported by hydraulic press, a kind of especially high of hydraulic consumption equipment is provided for
The operation of effect.
Detailed description of the invention
Next by attached drawing, the present invention will be described in detail.Wherein:
Fig. 1 is shown by one embodiment of the invention, and in this embodiment, transmission mechanism is placed in the second of electric motor
On output shaft；
Fig. 2 shows another to press the embodiment of the present invention, and in this embodiment, transmission mechanism is placed in the feed-through of hydraulic press
On；
Fig. 3 shows third embodiment, and in this embodiment, belt transmission structure is placed between electric motor and hydraulic press
Jackshaft on；
Fig. 4 shows the 4th embodiment, and in this embodiment, the gear of spur gear grade is fixed on jackshaft；And
Fig. 5 shows a kind of advantageous input element, which can be directly used in or can make with the adjustment of very little
In the transmission mechanism of previous embodiment.
Specific embodiment
Fig. 1 shows hydraulic unit driver 1 comprising the hydraulic press 5 that can be adjusted with attached adjustment device 35 is used for
Drive electric motor 7, hydraulic 21(4 connector/3 on-position of 4/3 reversal valve of the hydraulic press 5) and be cylinder 23 herein
Hydraulic consumption equipment.Hydraulic press 5(is often also referred to as pumped) usually there is input shaft, input shaft is equipped with grafting on the outside
Teeth portion.Electric motor 7 has output shaft or driven shaft 8.Output shaft or driven shaft are typically designed with receiving hole and internal grafting
Teeth portion, thus the input shaft of driven shaft 8 and hydraulic press 5 is mechanically torsionally coupled by their corresponding grafting teeth portion.In liquid
The output end of press 5 guides hydraulic pipeline, and hydraulic pipeline can be designed to hard tube or hose towards valve 21, use valve
Substantially control the direction of motion of hydraulic consumption equipment 23.Hydraulic consumption equipment 23 is typically coupled to the consumption equipment of valve 21
On connector A and B.
According to this embodiment, electric motor 7 is equipped with the second driven shaft 8' for being arranged in 8 opposite of driven shaft.It passes now
The input shaft 18 of motivation structure 15 is mechanical to be torsionally connected on second driven shaft 8'.This can be by grafting teeth portion, any other
Axis-axis connector or completed via axis-muff-joint device.Transmission mechanism 15 has input stage, is configured to commutating tooth herein
Take turns the gear 19 of grade.Driven shaft 17, the flywheel of the driven shaft and flywheel reservoir 9 are equipped on the smaller gear of spur gear grade
11 connections.
Hydraulic press 5, electric motor 7, transmission mechanism 15 and flywheel reservoir 9 are conceptually summarized as driving device or dress
Set 3.
If starting this hydraulic unit driver 1 now, then the hydraulic press 5 that can be adjusted is usually by its 35 quilt of adjustment device
It is adjusted to conveying capacity Q=zero.Electric motor 7 accelerates to that it typically is specified turns of 3000 revs/min by so-called soft starter device
Speed.Here, the flywheel 11 of flywheel reservoir 9 is also accelerated to corresponding higher revolving speed by transmission mechanism 15.When being for example driven
When the transmission ratio of mechanism is 1:5, then flywheel 11 is rotated with 15000 revs/min of revolving speed.
If requiring hydraulic power to hydraulic press 5 now, then hydraulic press 5 is adjusted to required conveying with adjustment device 35
Amount, people, which can say, turns (ausschwenken) for blowback.The hydraulic fluid conveyed by hydraulic press 5 via the valve 21 being manipulated into
Enter the chamber of cylinder 23 controled and drives this cylinder.Frame of the required driving power of hydraulic press 5 in its rated load ability
It is provided by electric motor 7 in frame and the additionally support by the load of flywheel reservoir 9.By flywheel reservoir 9, transmission mechanism
15 and the electromechanical drive shaft that constitutes of electric motor 7 experienced slight revolving speed under a load and reduce, wherein but electric motor 7 it is vertical
It carves and fights the revolving speed reduction and the revolving speed additionally support by flywheel reservoir 9.Revolving speed under a load reduce it is corresponding from
The Energy extraction of flywheel reservoir 9, with the first revolving speed nNennWith the revolving speed n of declineabThe difference of two squares it is corresponding.
When hydraulic press 5 can be negative by adjusting device 35 via zero stroke adjustment, hydraulic fluid can lead under stress
Hydraulic press 5 is crossed to return in hopper and export energy at this on hydraulic press 5.In this case, the electromechanics illustrated before
The revolving speed of drive shaft can slightly improve and electric motor 7 by electric energy feedback into power grid.In addition, will be a certain amount of according to rotational speed difference
Energy storage in flywheel 11.
Because the energy being stored in flywheel reservoir 9 depends on square of the revolving speed of flywheel 11, by using transmission
The raising for the revolving speed that mechanism 15 facilitates is with considerably higher energy come loading flywheel reservoir 9.Revolving speed improves such as 5 times and makes
The energy being stored in flywheel reservoir improves 25 times.Therefore considerably higher energy can be buffered simultaneously in flywheel reservoir 9
And the energy is extracted when needed.The axis being made of flywheel reservoir 9, transmission mechanism 15 and electric motor 7 by flywheel than being stored up
Traditional device that storage and electric motor are constituted is much firm.
It is further noted that, transmission mechanism 15 merely has to support a part of the driving torque of hydraulic press 5.Hydraulic press 5
Important a part of driving torque directly provided by electric motor 7.Therefore it is mentioned by flywheel reservoir 9 and transmission mechanism 15
Additional support torque is supplied.This supports torque to be less than the maximum design driven torque of hydraulic press 5.In other words, hydraulic
Machine 5 can design maximum driving torque, thus the maximum driving torque be more than electric motor 7 it is individual it is driven-
Nominal torque and be more than maximum design torque of the transmission mechanism 15 about axis 18.
According to the range of speeds of the permission of flywheel reservoir 9, it is reasonable to, the design of transmission mechanism 15 has in 1:2 and 1:10
Between transmission ratio.So the rated speed of flywheel 11 is just between 6000 revs/min and 30000 revs/min.
When there is the flywheel reservoir 9 of higher rated speed can be used, then transmission ratio can certainly be correspondingly adjusted, with
Just the maximum rated speed of flywheel reservoir 9 is most preferably made full use of as far as possible.
Transmission mechanism 15 is shown as spur gear transmission mechanism in this embodiment.Transmission mechanism, which can also design, embarks on journey
Star gear drive is designed to multistage planetary gear transmission mechanism especially to reach high transmission ratio, or certainly can also
To be designed to multistage spur gear transmission mechanism.
By hydraulic unit driver 1 of the invention or the dress being made of hydraulic press, electric motor, transmission mechanism and flywheel reservoir
A variant schemes similar to Example 1 for setting 3 shows embodiment 2, which is shown in Fig. 2.Identical member
Part is marked with identical appended drawing reference.
In this embodiment, electric motor 7 is equipped with only one driven shaft 8.But hydraulic press 5 has mechanical pass through thus
Parts 6.The input shaft of mechanical 6 opposing hydraulic machine 5 of feed-through is drawn from the input shaft.Feed-through 6 is set in this example
Count into ferrule element.The input shaft 18 of transmission mechanism 15 is inserted into and is torsionally fixed in the sleeve of the feed-through 6.
Functionally, 3 corresponding embodiment 1 of hydraulic unit driver 1 or device.When necessary, the driven shaft 8 of electric motor 7 exists
This can also be weaker than in embodiment 1 in size setting, because only transmitting the driving moment of electric motor by axis 8.It is attached
The support torque added is applied directly on the feed-through 6 of pump by axis 18 and need not be as in embodiment 1 by electronic horse
Axis 8 up to 7 transmits.
The conversion scheme illustrated in embodiment 1 could be used that in example 2 certainly.
Another embodiment by hydraulic unit driver 1 or device 3 of the invention is shown in FIG. 3.This embodiment
It is very much like with Examples 1 and 2.Identical appended drawing reference is used for identical feature.Next difference is illustrated.
According to this embodiment, transmission mechanism is designed to belt gear 15'.In addition, belt gear 15' cloth
It sets on the axis for connecting electric motor 7 and hydraulic press 5.Here, the belt pulley 19'' of belt gear 15' can be with cloth
Set on the axis 8 of electric motor 7 and axis 8 can directly with the input axis connection of hydraulic press 5.But jackshaft 18' can also be set,
The driven shaft 8 of electric motor 7 is connected on the jackshaft and belt pulley 19'' is fixed on the jackshaft.Jackshaft 18' is right
Couple afterwards with the input shaft of hydraulic press 5.
Lesser belt pulley 20 forms the output element of belt gear 15'.Output shaft 17 is fixed on output member
On part.Its flywheel 11 of flywheel reservoir 9 is connected on the output shaft 17 again.
When flywheel reservoir 9 be not disposed at in electric motor 7 or the line coaxial with hydraulic press 5, but should be therewith
When being laterally staggeredly arranged, belt gear 15' is advantageous.Make device 3 shorter in this way.Belt gear 15
Another advantage is to overload-resistant high tolerance.
According to the hydraulic unit driver 1 of third embodiment or the function of device 3 substantially and in the first two embodiment
The function of driver 1 or device 3 is identical.The conversion scheme illustrated there could be used that in this embodiment.
The 4th embodiment by hydraulic unit driver 1 or device 3 of the invention is shown in FIG. 4.This embodiment is
The conversion scheme of embodiment 3.Replacing belt gear 15''s is that gear drive 15 is arranged in hydraulic press 5 herein
On the axis 8 or 18' connected with electric motor 7.Therefore the gear of input stage 19 or is fixed on axis 8 or is fixed to
On the jackshaft 18' that the input shaft of axis 8 and hydraulic press 5 is connected.
On the output shaft 17 of transmission mechanism 15 being offset horizontally by with the connection spool of hydraulic press 5 and electric motor 7 again
Couple flywheel reservoir 9.This structure type also allows for the short design scheme of device 3 and such as in embodiment 3
Available structure space on the side on 7 side of 5 side of hydraulic press or electric motor is made full use of like that.
This embodiment shows a kind of additional evolutionary approach, the embodiment illustrated before capable of being also directly used in
In.Electric motor 7 is designed to the electric motor 7 that its revolving speed can adjust certainly herein.For this purpose, electric motor 7 is adjusted by driving
Device 37 controls.Driving adjuster 37 can control or regulate the revolving speed of electric motor 7, target specification according to target specification
Such as it is provided by supervisory equipment control device.When driving adjuster 37 is controlled in this way, so that electric motor is specifically turning
When being run in fast section, considerably higher energy can be extracted from flywheel reservoir 9 or is conveyed to considerably higher energy
Flywheel reservoir.Input or output energy certainly with the difference of two squares of revolving speed i.e.: na 2-nb 2It is proportional, wherein naIt is revolving speed section
The first revolving speed and nbIt is the second revolving speed.The revolving speed section can be for example in for hydraulic press 5 or electric motor 7
Between 1000 revs/min and 3500 revs/min.
Driving adjuster 37 can alternatively or additionally be equipped with control logic, and control logic for example attempts always will be electronic
Motor 7 is adjusted with certain scheduled acceleration to scheduled rotating speed of target nTarget.Thus the maximum of electric motor 7 is subscribed
Load.Then energy also pulsed can be conveyed to flywheel reservoir 9 in wide revolving speed section or is mentioned from flywheel reservoir
It takes.It is lower than rotating speed of target n in actual speedTargetIn the case where, electric motor 7 is accelerated by its specified value and in certain journey
Flywheel reservoir 9 is filled with energy again on degree.It is higher than rotating speed of target n in actual speedTargetIn the case where, driving adjuster 37 is used
Scheduled deceleration electric braking electric motor 7 and the electric energy of recycling can be stored in if necessary in electric reservoir, such as
In intermediate circuit capacitor, or energy fed back in power grid.
In addition, according to the hydraulic unit driver 1 of the 4th embodiment or the function of device 3 substantially and in embodiment before
In driver 1 or device 3 function it is identical.The conversion scheme illustrated there could be used that in this embodiment.
Finally, Fig. 5 is shown for using one kind in the input element 19 of the transmission mechanism 15 or 15' of embodiment 1-4
Particularly advantageous design scheme.The fixed gear 19' on the axis for being configured to feed-through 18''.Belt pulley can certainly be used
Alternative of the 19'' as gear 19'.There is feed-through 18'' the aixs cylinder of external tooth processed to play 33 on one side thereof.Feed-through
18'' back to side on then there is ferrule element 31, which has the hole in axis center, and hole is equipped with interior teeth portion.
This peripheral hardware bearing element 34, to ensure the bearing being able to rotate to this input element 19.Aixs cylinder plays 33 and is constructed so, and makes
In the corresponding receiving portion for obtaining the output shaft 8 that it is for example inserted into electric motor 7 now.Ferrule element 31 is by such structure
It makes, so that hydraulic press 5 can be disposed thereon, thus the input shaft through tooth processed of hydraulic press 5 is inserted into the ferrule element
In 31, and therefore torsionally it is connect with feed-through 18''.
Input element 19 with feed-through 18'' can directly replace jackshaft 18' to use in embodiment 3 and 4.It can
With this input element 19 is also provided in Examples 1 and 2 be used to illustrate there with corresponding transmission mechanism 15
The input element 19 of input shaft 18.In this case, it might even be possible to cancel one of coupling element, i.e., ferrule element 31 or
Aixs cylinder plays 33.
Present invention illustrates a kind of by hydraulic press, the electric motor for driving the hydraulic press, for storing mechanical energy
Flywheel reservoir and for by flywheel reservoir be connected to the transmission mechanism on electric motor and hydraulic press composition device.According to
The present invention, in this device, electric motor and hydraulic press are with the first rotational speed, and the flywheel of flywheel reservoir is then with second
Rotational speed.The ratio of revolving speed is determined by the transmission ratio of transmission mechanism.Furthermore, it is proposed, according to the invention, for controlling hydraulic consumption
The hydraulic unit driver of equipment is equipped with the device.
Reference signs list
1 hydraulic unit driver
3 driving devices
5 hydraulic presses that can be adjusted
6 feed-throughs
7 electric motors
The driven shaft of 8 electric motors
The second driven shaft of 8' electric motor
9 flywheel reservoirs
11 flywheels
15 transmission mechanisms
15' belt gear
17 driven shafts/output shaft
The input shaft of 18 transmission mechanisms
18' jackshaft
18'' feed-through
19 gears
The gear of 19' transmission mechanism
The belt pulley of 19'' belt gear
The belt pulley of 20 belt gears
21 reversal valves
23 hydraulic consumption equipment
31 ferrule elements
33 aixs cylinders rise
34 bearing elements
35 adjustment devices
37 driving adjusters.
Claims (15)
1. a kind of by hydraulic press (5), the electric motor (7) for driving hydraulic press (5), with being able to rotate the flywheel that is supported
(11) flywheel reservoir (9) for storing mechanical energy and for flywheel reservoir (9) to be connected to electric motor (7) and liquid
The device that transmission mechanism (15) on press (5) is constituted, wherein the component couples in this way by transmission mechanism (15), so that
With the first rotational speed and flywheel (11) with the second rotational speed, the second revolving speed is big for both hydraulic press (5) and electric motor (7)
In the first revolving speed and the second revolving speed it is proportional to the first revolving speed, the ratio is true by the transmission ratio of transmission mechanism (15,15')
It is fixed.
2. device described in accordance with the claim 1, wherein the output shaft of the flywheel (11) and the transmission mechanism (15,15')
(17) it is mechanically coupled to.
3. device according to claim 1 or 2, wherein the electric motor (7) and the hydraulic press (5) and the biography
The input shaft (18) of motivation structure (15,15') is mechanically coupled to.
4. device described in accordance with the claim 3, wherein the first output shaft of the hydraulic press (5) and the electric motor (7)
(8) input shaft (18) of connection and the transmission mechanism (15,15') is connected on the feed-through (6) of the hydraulic press (5).
5. device described in accordance with the claim 3, the first output shaft (8) connection of the hydraulic press (5) and the electric motor (7)
It connects and the input shaft (18) of the transmission mechanism (15,15') is connected in the second output shaft of the electric motor (7) (8')
On.
6. device described in accordance with the claim 3, wherein the hydraulic press and the output shaft (8) of the electric motor (7) join
It connects, and wherein, the input stage (19) of the transmission mechanism (15,15') torsionally couples with the output shaft (8).
7. device according to claim 6, wherein the output shaft (8) of the hydraulic press (5) and the electric motor (7)
Coupled by jackshaft (18'), and the jackshaft (18') the torsionally input stage (19) with the transmission mechanism (15,15')
Connection.
8. according to the described in any item devices of preceding claims, wherein the transmission mechanism (15,15') has at least one
First gear stage, and wherein, which selects from least one of following transmission mechanism type: belt transmission
Mechanism (15'), gear drive, particularly spur gear transmission mechanism (15) or planetary gear transmission mechanism or rolling element pass
Motivation structure.
9. device according to claim 8, wherein the transmission mechanism (15,15') is configured to multistage planetary gear
Transmission mechanism.
10. according to claim 8 device in conjunction with described in claim 6 or 7, wherein the transmission mechanism is configured to belt
Transmission mechanism (15'), and wherein, belt pulley (19'') is fixed on the output shaft (8) of the electric motor (7) or fixes
On the jackshaft (18').
11. according to the described in any item devices of preceding claims, wherein the transmission mechanism (15,15') has input member
Part, the input element are configured to feed-through (18''), wherein the one side ferrule element (31) and another on the input element
One side aixs cylinder plays (33) and is configured to coaxially.
12. according to the described in any item devices of preceding claims, wherein there is the driving tune for the electric motor (7)
It saves device (37), adjusts revolving speed and/or the torque of the electric motor (7) according to predetermined value by the driving adjuster.
13. a kind of hydraulic unit driver, with according to the described in any item devices of preceding claims (3) and with hydraulically
The hydraulic consumption equipment, particularly hydraulic cylinder (23) being connect with hydraulic press (5).
14. hydraulic unit driver according to claim 13 has hydraulic control device, hydraulic control device arrangement
Between hydraulic press (5) and hydraulic consumption equipment, especially formed by reversal valve (21).
15. according at least one described hydraulic unit driver in claim 13 or 14, wherein hydraulic press (5) is designed to
It can adjust, and be equipped with adjustment device (35), be especially equipped with pressure regulator and/or be equipped with feed flow adjusting
Device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017219246.1 | 2017-10-26 | ||
| DE102017219246.1A DE102017219246A1 (en) | 2017-10-26 | 2017-10-26 | Arrangement of a hydraulic machine and an electric motor for driving the hydraulic machine |
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| Publication Number | Publication Date |
|---|---|
| CN109707679A true CN109707679A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811248876.2A Pending CN109707679A (en) | 2017-10-26 | 2018-10-25 | Device by hydraulic press and for driving the electric motor of hydraulic press to constitute |
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| Country | Link |
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| CN (1) | CN109707679A (en) |
| DE (1) | DE102017219246A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102021208820A1 (en) * | 2021-08-12 | 2023-02-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method for low-noise operation of an electrically driven hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19701671A1 (en) * | 1997-01-18 | 1998-07-23 | Mannesmann Rexroth Ag | Drive unit for hydraulic pump supplying variable loads, especially pressure injection moulding machines |
| GB201122223D0 (en) * | 2011-12-23 | 2012-02-01 | Bamford Excavators Ltd | Energy recovery system |
| US20150063968A1 (en) * | 2013-09-05 | 2015-03-05 | Caterpillar Inc. | Flywheel excavator |
| CN105082610A (en) * | 2015-09-07 | 2015-11-25 | 华中科技大学 | Power device used for reducing installed power of hydraulic machine and application thereof |
| CN105697474A (en) * | 2014-12-11 | 2016-06-22 | 罗伯特·博世有限公司 | A hydraulic arrangement for a work machine and a process for a hydraulic arrangement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011011750A1 (en) | 2011-02-18 | 2012-08-23 | MAE Maschinen- u. Apparatebau Götzen GmbH | Accumulator-free hydraulic drive arrangement for and with a consumer, in particular for presses, and method for operating such an accumulatorless hydraulic drive assembly |
-
2017
- 2017-10-26 DE DE102017219246.1A patent/DE102017219246A1/en active Pending
-
2018
- 2018-10-25 CN CN201811248876.2A patent/CN109707679A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19701671A1 (en) * | 1997-01-18 | 1998-07-23 | Mannesmann Rexroth Ag | Drive unit for hydraulic pump supplying variable loads, especially pressure injection moulding machines |
| GB201122223D0 (en) * | 2011-12-23 | 2012-02-01 | Bamford Excavators Ltd | Energy recovery system |
| US20150063968A1 (en) * | 2013-09-05 | 2015-03-05 | Caterpillar Inc. | Flywheel excavator |
| CN105697474A (en) * | 2014-12-11 | 2016-06-22 | 罗伯特·博世有限公司 | A hydraulic arrangement for a work machine and a process for a hydraulic arrangement |
| CN105082610A (en) * | 2015-09-07 | 2015-11-25 | 华中科技大学 | Power device used for reducing installed power of hydraulic machine and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017219246A1 (en) | 2019-05-02 |
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Application publication date: 20190503 |