DE102014101714A1 - Multifunctional hydraulic unit - Google Patents

Abstract

The present invention describes a multifunctional hydraulic unit for driving hydraulic tools with the aim of meeting as many requirements for a wide variety of system applications. This will be realized on the one hand by means of a powerful cooling and filtering concept, on the other hand by the modular cascadability of the motor and the electronics or also by the possibility of being able to install any additional reservoirs via suction lines or communicating systems. In order to meet the industry's data management, access and up-to-date requirements, it is possible to control, update and bidirectionally exchange the aggregate via external central servers or even via a cloud. By means of an online portal as a cloud service program data and / or process data and / or system data of the hydraulic unit are stored and analyzed for process evaluation and provided to an authorized group of people for download or via web browser. Another cloud service automatically informs users and customers when system or system maintenance is required or necessary. In addition, it is possible to integrate all the system accessories used for the inclusion of the maintenance intervals via the cloud so that a flexible overall system is created and the multifunctional use of the hydraulic aggregate in the system network is ensured.

Description

Multifunctional hydraulic power unit and method for controlling hydraulic tools and / or hydraulic power units with an interface for receiving process programs and sending process results for outsourced process management, process evaluation or data backup and suitable for stationary or portable operation of the unit in a simultaneously centrally organized data management.

State-of-the-art hydraulic power units are used to drive and control hydraulic tool components. The units used are application-specific developed and therefore only very limited use in terms of their hydraulic, electrical and process engineering possibilities.

Thus, depending on the connected tool, e.g. a very different amount of usable oil volume and capacity required. This leads to the fact that there are a multiplicity of most different aggregate models.

The requirements for process control are also very different. For the operation of tools such as hydraulic torque tools, the screw parameters are set in various ways for the programming of the units, usually via individual parameters that serve the control. In many cases, the adjustment is made manually or the parameters are entered relatively inconveniently and cumbersome in a sequence or loaded sequentially by a connected reading device. Program-controlled systems that are externally programmed are triggered purely manually and from a connected memory such as a computer. from a USB stick or similar portable storage medium. Also, portable systems are known which are adjustable via a manual Druckeinstellventil and pressure gauge to adjust a desired working pressure.

There are currently no systems in the prior art that allow different externally stored programs - such as screwdriving programs for driving hydraulic screwdrivers - on the unit either triggered internally or externally or controlled to load. Furthermore, it is not possible to load them either directly from a server or from a data store such as "from the cloud" or alternatively locally from the internal memory and / or to start automatically.

• • Die Systeme sind nicht in der Lage, die unterschiedlichen Anforderungen an Fluidreservoir, Fördermenge und elektrische Anschlussdaten ohne Modellwechsel modular zu lösen.
• • Bei den Systemen sind die geforderten Eigenschaften zur Fluidkühlung nicht gegeben.
• • Bei den Systemen sind die geforderten Eigenschaften zur Fluidfiltrierung nicht gegeben.
• • Steuerungsparameter des Aggregats müssen kompliziert einzeln oder sequentiell oder manuell geladen und gespeichert werden.
• • Es ist keine Aggregatsteuerung über Cloud, Server oder wahlweise lokal möglich.
• • Es kann kein automatisierter Programmdownload aus einem extern liegenden Zentralspeicher aufgrund einer automatisierten Applikationserkennung durchgeführt werden.
• • Es ist keine automatisierte, zentralisiert gesteuerte Qualitätsbeurteilung der Verfahrensergebnisse möglich.
• • Es ist keine variable Nutzbarkeit für unterschiedliche Prozessanforderungen mittels interner und/oder zusätzlich erforderlicher externer Sensoren gegeben.
• • Es liegen keine zentral analysierten Daten vor, welche für die Prozessbewertung herangezogen werden können.

This leads inter alia to the fact that systems in the prior art at least partially have the following disadvantages:

• • The systems are not able to solve the different requirements of fluid reservoir, flow rate and electrical connection data without model change modular.
• • The systems do not have the required properties for fluid cooling.
• • The systems do not have the required properties for fluid filtration.
• • Control parameters of the unit must be complicated and loaded and stored individually or sequentially or manually.
• • Aggregate control via cloud, server or locally is not possible.
• • Automated program download from an external central memory due to automated application detection can not be performed.
• • No automated, centralized quality assessment of process results is possible.
• • There is no variable usability for different process requirements by means of internal and / or additionally required external sensors.
• • There are no centrally analyzed data that can be used for process evaluation.

Especially in industry, the multifunctional usability of such aggregates and centralized data storage and organization to ensure data up-to-dateness are playing an increasingly important role. On the one hand, this reliably ensures the program up-to-dateness of aggregates used worldwide for a wide variety of applications and, on the other hand, rapid access to the process results.

It is an object of the present invention, at least partially overcome the disadvantages known in the prior art and to provide an apparatus and / or a method with which the disadvantages of the prior art are at least partially solved or improved.

This object is achieved with a device according to claim 1 and the method according to the invention according to claim 10. Preferred embodiments of the present invention are the subject of the respective subclaims.

The multifunctional hydraulic power pack has a modular design that allows motors of different voltage, outer conductor number and power to be mounted on the same pump block in order to assemble different ones Requirements to meet supply sources. Furthermore, there is at least one electrical interface from the motor to the electronics, which can cover the entire voltage and current range and at the same time ensures a tight connection between the fluid-carrying pump or hydraulic unit and the top-mounted power electronics. The power electronics has power switches, which are designed purely as an on / off switch in one embodiment, in another embodiment as a frequency converter. The electrical interface from the motor to the power electronics is carried out via a two-sided populated board, wherein the circuit board seals against the fluid via O-rings to the motor housing or tank (depending on the embodiment). The engine of the hydraulic unit is preferably an under-oil engine due to the lower noise emission, it may also be designed as a dry runner in another embodiment. Due to the arrangement of the pump and the filling opening for the fluid, the motor can be operated standing or lying to the footprint of the hydraulic unit and is thus operable in at least two orientations. The handset of the hydraulic power unit is used to start and stop the process, can be wired or wireless and can be integrated for special applications in the removable user interface, so that this user interface handheld also controls the start-stop functionality of the process. The user interface also contains a process data visualization, which outputs the process status on the one hand, and the process values on the other, and displays them graphically. In addition, however, another analogue manometer may also be attached to the unit in order to make data redundancy available to the user via an additional channel. At the front end of the engine, a fluid cooler is mounted directly in front of the engine fan to reduce the fluid temperature in extreme environmental or operating conditions. In a portable basic version, the unit can supply the connected tool with its own internal useful volume with fluid. However, if several or particularly large tools such as lifting cylinder connected or Mehrtoolbetrieb be necessary, may be connected to the hydraulic unit a communicating external auxiliary reservoir with the same maximum fluid level as the hydraulic unit. For this operating mode, the cover on the hydraulic unit is designed as a ventilation element and the connection to the hydraulic unit is located at the lower connection to the reservoir of the unit. When communicating fluid connection of the fluid level in the unit depends on the discharged fluid quantities and the flow conditions in about the same level as the fluid level in the external auxiliary reservoir. In order to have the possibility of providing a higher fluid volume of the pump on the same footprint, a suction active principle must be selected. For this purpose, in turn, a ventilated additional reservoir is connected to a ventilated closure lid above the suction region of the uppermost pump element. For the sucking variant, the closure cap on the hydraulic unit is to be selected in a sealed design so that a negative pressure can be created by the fluid removal in the reservoir, by means of which the fluid is sucked out of the external additional reservoir. By linking several reservoirs, any fluid volume can be made available in both versions, which in turn ensures a multifunctional use.

According to a particularly preferred embodiment, the hydraulic unit according to the invention with a preferably externally arranged, ventilated and fluid-dynamically communicating additional reservoir can be connected. For this embodiment, the closure cap of the hydraulic unit is preferably not made airtight, so that in particular by means of the freely selectable additional reservoir, the fluid requirement of other consumers can be adjusted accordingly. Alternatively, the hydraulic unit according to the invention with an externally arranged, aerated additional reservoir via a fluid line to the reservoir of the hydraulic unit can be connected, in which case the cap of the hydraulic unit for operation airtight run and the fluid line thus acts as a suction line, by means of which the Fuidreservoir to supply any Consumers can be expanded according to their fluid requirements and thus preferably no level limit of the additional reservoir for the operation of the unit consists.

Since it is possible for the operator to make selection errors in a purely manual program selection, the device has the option of starting internal process programs externally or of transferring entire process programs externally. In this case, the external process call corresponding to the programming of the system can lead to an automated program start of the hydraulic unit. For this purpose, a multifunctional reader in a wireless or wired version is connected to the hydraulic unit. The reader may have, for example, a TAG reader (label, card reader, tag reader), a 1D, 2D or 3D scanner, by means of which an application name of the application or simply an order form is read. The program can be loaded directly from the multifunctional reader via the application name or, for example, transferred to the hydraulic power unit via WLAN or wired. It is also possible that only the application name and supplementary documentation information, such as the name of the worker, the serial number of the machine, etc., is transmitted to the hydraulic power unit and the corresponding program is started via the application name on the unit. Another embodiment is the possibility that by loading the application name from the reader, the program request to a cloud service or an external server is started and the program is transferred from there via the reader to the hydraulic unit and started. Since it must be ensured that the transmitted data arrives without error at the receiver, they are provided with a checksum, such as cryptographic or hash value. If the checksum does not match the data, a new request for data is made to the sender of the message until the correct data is sent. The multifunctional reading device can, for example, also be a mobile phone with, for example, a Bluetooth or WLAN connection, which also provides the connection from the hydraulic unit to a server or a cloud service via a WLAN hotspot.

After the process has been completed, the process data determined are transferred from the hydraulic power unit to the multifunctional reader back to the server or to a cloud service. By means of the cloud service, the received process, system or program data can be stored, analyzed and viewed, for example via a web browser by an authorized group of people. The connected cloud service also offers the functionality that the user can directly retrieve information about the maintenance requirements or the necessary replacement of his devices. From the cloud service, customers and users are automatically informed via special services that maintenance of the plant is pending. If the customer does not want to carry out the maintenance via the manufacturer, he can also reset further reminders himself by confirming that he himself carried out the safety-relevant service; Thus, he receives until the next due date again a call for maintenance. By means of this service in the cloud, not only the pump set but also all third-party inventory of the customer can be maintained and managed. Thus, the cloud solution aggregate provides an overall approach to maintenance and management for a wide variety of system compositions, as a complete hydraulic system always includes at least one unit, one power cord, and one tool.

Software updates are sent to the multifunctional hydraulic power unit via the server and / or the cloud to ensure software updates. If an update fails, the original version will be restored. This ensures that the system fails due to a failed update. The update fixes recognized software problems and provides new functions and tools for the control.

The interface of the hydraulic unit is equipped in one embodiment with a graphical user interface with a touch control. The user interface is based on the concepts of modern smartphones to simplify the operating concept, as most users have developed an intuitive understanding. The operating instructions are integrated in the hydraulic unit and can be read via the interface. For system parameters, program functions, icons, operating elements and program parameters, an emergency aid can be called up by means of which the selected function point is described and explained. Thus, the unit ensures fast emergency assistance with questions about operation and help with process error messages.

The multifunctional hydraulic unit is designed according to a preferred embodiment for intermittently operating screwing tools. Due to the safety-relevant connections in screwdriving processes, such as in a wind power tower, a crane flange or a castor screw connection, there is a high demand for process reliability and documentation capability.

The hydraulic unit can for this example, via a sensor interface angle information u.a. between tool and screw, as well as actual data on the preload force and the screw elongation, as well as provide torque values, process and control the process via these parameters. In particular, the externally provided parameters can serve as direct control parameters or else be used as test parameters for process validation. For this purpose, the unit detects various process parameters, in particular via internal sensors.

Particularly in the case of more complex tightening methods, such as intermittent yield strength-controlled tightening, it is particularly advantageous due to the process reliability to capture the parameter of the screw elongation as directly as possible via a length measurement or an angle measurement, so that the yield strength of the screw can be achieved as precisely and reliably as possible. By means of a corresponding sensor can also relatively easily other other verification methods, such as the "Weiterdrehmethode" on the measurement of rotational angle and torque or equivalent methods are performed with the hydraulic unit.

According to a particularly preferred embodiment of the present invention, it is possible by centralized data storage and storage, such as in a cloud, to analyze and evaluate screwing processes by means of special services. The analysis of the data allows different filter criteria, such as dispersion consideration using different lubricants, tightening methods, measuring methods, environmental influences, date range, IO screwing, NIO fittings, user, program name, clamp lengths, etc. Such methods are one users of this platform In particular, a continuous improvement process of bolting possible to achieve improved system safety and cost-effectiveness.

According to a further preferred embodiment of the present invention, large or multiple screwdrivers are used simultaneously under special operating conditions, which have a higher fluid requirement than can possibly provide a single unit of useful volume. By means of an external additional reservoir, the desired fluid volume can be extended according to the requirement.

By a reading device, which may also be a mobile phone, according to another embodiment, screw program names can be read by an application, programs can be downloaded from a cloud, from a server, or from a reading device, transferred to the aggregate or the aggregates and started. It is also possible that tightening programs, which are already located on a local memory of an aggregate, are started externally by means of a reading device and executed on an aggregate. With this method u.a. Input errors of the operator avoided or reduced. In this case, the reader can read either different optical codes or TAGs preferably.

For example, the user can take pictures of the application with a mobile phone and send them to an aggregate for documentation of the application. The determined process data, suitability curves and system data are preferably first visualized and stored internally in the hydraulic unit and sent in a data connection to a shared server, a cloud or a reader, so that a centralized data archiving, analysis and visualization can be done.

Furthermore, maintenance information of a unit or of an accessory can be read in via a TAG via an external reading device and according to a further exemplary embodiment; This ensures, for example, that no maintenance of the safety-relevant components is forgotten or overlooked. For this purpose, the reader preferably notifies the user of the status of the maintenance interval after reading in the TAG or the optical code. Using a web browser, a shared personal area worldwide can access the current database externally and retrieve, view or analyze the existing data. Process errors are then forwarded, for example, directly to a selected group of people. Thus, a closed quality management can be guaranteed.

According to a further, particularly preferred embodiment, a separate web browser is located on a hydraulic aggregate, by means of which access to other process data in a cloud and / or on a server can also take place in order to have a direct comparison with old process results and / or processes , Via a LAN, WLAN, USB, GSM and UMTS interfaces software updates of the system can be carried out. Furthermore, it can be checked whether a more current program version is available, so that then a user can be informed about the possible update. This ensures that the screwdriving system is always state-of-the-art.

A user interface visualizes and displays the actual data for the screw thread directly to a worker. Since it is helpful, especially with screw runs, to also see the history, the display can be displayed alphanumerically and via an XY plot, the angle over torque, time over torque and angle over angle. In this case, in an angle-related method, such as the torque-rotation angle method, the yield-limit-controlled method, the torque-controlled rotation angle monitored method and the angle-controlled analysis method, the intermittent return stroke of the tool is preferably hidden by returning angular rotations, as the tool back again falls. In a time-related method without angle sensor, it is also possible to select whether the return stroke phase is visible or hidden.

In order to ensure a fast tool control, a sensor is attached to the screwing tool, which detects the position of the drive and initiates the pre-stroke return stroke control on the hydraulic unit via pulses. Thus, it is possible to control a piston return stroke via the hydraulic unit without the need for an inactive pressure increase, which takes time, wastes energy, to a higher operating temperature and to a higher operating temperature slower tightening process and faster tool and assembly wear would result.

The hydraulic unit also preferably has a removable user interface in which in one embodiment, the start and stop buttons for process control can be integrated. In particular, for the operation in production lines or assembly sites, a location-independent attachment of the operating interface may be useful because you can place the interface in a well-visible place, which increases the ease of use and safety. There are several mounting options available, such as magnetic mount, belt mount, Velcro fastener or mounting via screw-on points.

The following is an example of the suitability course for a yield strength controlled process described:
On a bolting flange is a code carrier, such as a TAG. By means of the portable reader, the content of the tag is read, the name of which refers to a stretch-bound controlled program. The user is asked from which source he prefers to read the program file, or he is automatically directed to a defined source such as the cloud. For this purpose, in the case of a possible operator selection, the reader itself, a server, a cloud or the aggregate is available as a possible data source. The data is either wireless or wired after operator selection loaded from the source and transmitted wirelessly or wired to the hydraulic unit for execution. If the hydraulic unit is in a receivable mode, the transmitted program is immediately started and the operator is prompted to make various adjustments and / or confirmations. Contents of the tightening program are the tightening parameters, control parameters, system requirements, the tightening order and extensible user queries. Upon completion of this sequence, the operator is informed of the planned screwing sequence and asked to start the screwing process. To do this, he must have connected the appropriate sensors and set the screwdriving tool on the application. Pressing the start button by the operator starts the tightening process. The unit checks during the intermittent screwing the entire Gradienentenverlauf the tightening process and ends the tightening process automatically when the programmed relative gradient threshold to linear gradient is exceeded. This is the characteristic for reaching the yield point. The process also terminates when the operator completes an operator or when the torque is insufficient to continue rotating the screw and successfully pull it to its yield point. After completing the operation, the intermittent tool is moved to the start position and the unit motor is turned off. The system checks the achieved physical values by comparison to the default values from the tightening program and / or statistical values from the cloud or the server. If the result is within the desired ranges, the process is evaluated as "OK" and the output turns green. If the procedure is incorrect, a "NOK" message will be displayed and the output mask on the user interface and / or the remote control will turn red. The operator is then alerted to the next screw number to which he needs to change the wrench, and the process repeats until the successful completion of the last fitting, which may in some cases be several hundred screws. If there are individual operations marked with "NOK", the operator can immediately decide whether he wants to carry out the process immediately or at a later time. It is possible to adjust the screw order as desired. The executed tightening program and the tightening protocol are merged into one file and changes of the tightening sequence can be taken from the protocol. The documentation covers the complete tightening process in XY coordinates, the reached final values, the executed tightening program and all additional operator inputs and system information.

According to another preferred embodiment, the hydraulic power unit has a PDF generator on which a protocol is also output in pdf format. So that the tightening protocols are forgery-proof, a checksum is inserted, which makes manipulations of the protocol recognizable. In the case of an existing wireless or wired connection, the protocol data are transmitted immediately after the generation to, for example, a reading device, which in turn transmits the data wirelessly or by cable to a server or a cloud. Depending on the program definition or system setting, however, the data can also be stored locally on an aggregate and transmitted wirelessly, wired, via USB memory, via USB interface, LAN or WLAN to a server and / or a cloud at any other desired time. The data in a cloud is archived and stored in a database. Depending on the setting of the service, after receipt of the data in a cloud, an authorized group of persons can be informed automatically if, for example, data has arrived, faulty data, system messages or system diagnostics are present which necessitate, for example, maintenance. An authorized operator can also access the data in the cloud at any time worldwide and use filters to visualize specific data. consider. For example, data may be filtered by date range, program name, user, aggregate type, error logs, error records, "OK" records, "OK" logs, and / or customers, or other criteria and parameters. This closed process is particularly relevant for the quality officers of a company, as they can quickly identify correlations and take countermeasures with the results. Thus, for example, the QA representative can adapt the program if this is necessary due to a change of the lubricant, a different grade of screw, or other surface textures. He can put the new or modified program in the cloud and all other program launches via the reader then take place with a fixed link to the cloud worldwide with the updated program, without the risk that some employees work with the old or the wrong standard. By means of a cloud, for example, each individual process can be regarded as an XY plot and analyzed, which gives a high degree of security, in particular when tracking problems.

The present invention is based on the two embodiments 1 and 2 each of which shows only one possible embodiment of the present invention. Showing:

1 in a schematic, perspective view of an inventive hydraulic pump assembly in a largely wireless version and with suction acting additional reservoir:

2 in a schematic, perspective view of an inventive hydraulic pump assembly in a largely wired version and communicating acting additional reservoir.

It is a portable motor-driven hydraulic unit, preferably with an under-oil motor and at least one piston pump for driving hydraulic tool components, such as e.g. intermittent and / or continuously operating screwdrivers, lifters, spreaders, tensioners or similar hydraulic device.

The aggregate 34 has an internal and / or external data interface (not shown) for information transfer and / or aggregate control with at least one server 10 and / or a cloud 11 , By means of this interface and the required drivers is the unit 34 capable, for example, of an unimaged radio module with GSM (Groupe Spécial Mobile), GPRS (General Packet Radio Service), EDGE (Enhanced Data Rates for GSM Evolution), UMTS (Universal Mobile Telecommunications System), HSDPA ( High Speed Downlink Packet Access), LTE (Long Term Evolution) or WLAN (Wireless Local Area Network) module to operate a direct remote data exchange 2 or 26 and a control of the unit 34 to enable. It is using the cloud 11 an authorized person area 33 authorized to access this data. This is preferably done from the cloud 11 and / or the server 10 out in the event of a violation of the process results to a selected group of authorized persons 32 or 33 an information for checking, optionally with or without the measured data. So it is possible to realize an automated instant support for process problems. Furthermore, the measurement data in the cloud 11 and / or in the server 10 used to analyze mean values, typical scatter, typical success trajectories and typical error trajectories in order to obtain better models for the analysis of the bolting data and thus to improve the analysis possibilities in a self-contained quality process.

By means of a short-range radio link, such as with a not shown wireless technology such as WLAN, Bluetooth, ZigBee or the like, the aggregate can by means of an additional external eg RFID (Radio Frequency Identification) capable reader 22 for DAY 21 , or via 1D, 2D or 3D bar code reader 22 and a corresponding unimaged code read an application name from an agent attached to the application. The external multifunctional reader 22 has an interface and special software for a controlled exchange of data over the radio links 23 or 36 to a data server 10 or a cloud 11 , The reader 22 transmits the application name and receives in return from the addressed data memory, the associated current program or programs, which via the radio link 27 transferred to the unit and then started. The process of program download can also be triggered due to an upcoming service process and in advance on the reader 22 respectively. The process of reading the application name by the reader 22 In this case, it only serves to verify the correct operation and trigger the program transfer to the unit 34 , When the program expires or completes, the process result is either automated or manually triggered back through the communications link 27 to the reader 22 which in turn sends this information to the selected data memory 10 or 11 over the communication line ( 23 or 36 ) or stops in internal memory first. Furthermore, the direct data storage from the Aggregate on a cloud 11 and / or another server 10 by means of wired 2 or wireless 1 Transmission possible. Should be either the aggregate 34 or the reader 22 If there is a build-up problem with the data connection, the data will be held on the devices for deletion, regardless of the data link, until they have been successfully issued. This measure reliably prevents data loss. In this case, the connection between hydraulic unit and reader 22 , Server 9 , Cloud 11 and printers 19 also be wired.

For traffic to and from external storage 23 and 24 and 26 and 27 and 36 is from the respective end users of the transmission path 10 and 11 and 22 and 34 a checksum integrated with the data is checked. If an error is detected when checking the checksum, either by the aggregate 34 or through the external memory 10 or 11 or 22 transferred or triggered a new data request or an error message. If, due to a deviation in the checksum, the sender detects that the data record contains an error, this erroneous data record is not sent and the error is reported.

As the hydraulic unit according to the invention 34 is used for many different requirements, such as hydraulic screwdrivers, hydraulic lifters, hydraulic spreaders, hydraulic presses, etc ... and sometimes relatively large amounts of fluid are needed, it has at least one interface 17 or 35 for external connection of at least one additional reservoir 14 which in one embodiment 2 communicating and in another embodiment 1 sucking the reservoir. In this case, the additional reservoir 14 For example, for a more compact structure in another embodiment not shown also fixed to the unit 34 be connected. Here is the shutter 13 designed as a ventilation opening and via an interface 15 is the fluid line 16 for fluid exchange between additional reservoir 14 and aggregate 34 appropriate. In the application example 2 with communicating fluid exchange is the connection 17 the fluid line 16 at the bottom of the aggregate reservoir 34 , When sucking concept is the connection of the fluid line 16 at the top of the reservoir. For the absorbent version of the additional reservoir 14 on the unit 34 It is necessary that the cap 20 is designed to be tight, so that in the case of fluid removal from the reservoir, a negative pressure in the reservoir can arise, through which the fluid from the additional reservoir 14 is sucked. In the case of the communicating design, on the other hand, the closure cap must also be used 30 be designed as a ventilation element.

So that the different demands on the delivery rate can be met, the unit is 34 able to drive at least one piston pump of different delivery quantity or at the same time several pumps of different design.

For the multifunctional use of the aggregate 34 is the direct operation of a printer 18 on an existing interface, such as USB as a wired solution 19 or Bluetooth as a wireless solution over the radio link 25 possible. Thus, the measurement reports can be output directly at the application site according to the program requirements or user selection and enclosed with the documents.

The hydraulic unit 34 also has a standardized sensor interface (not shown) for connecting external sensors. This can be, for example, CAN, Ethernet, 0 ... 10V, 0 ... 20mA, 4 ... 20mA or an incremental input of any physically measured unit, its control signals in the unit 34 for control and / or documentation. In addition, the unit has 34 via the possibility of integrating freely programmable master value tables, by means of which the measured physical variables are converted to representable to their physical units. These measured external input variables can be used independently or in combination with the system-internal measured variables for process control of the unit 34 have a benefit.

The hydraulic unit is equipped with a remote control 8th connected wirelessly over the radio link 31 or wired, and the aggregate 34 controls.

To ensure a multifunctional use, the unit has 34 via at least one user interface 1 , which with the electronics module 2 connected and through which programs can be created and accessed. The desired process and / or process and / or aggregate and / or source parameters may be via a display means 7 and / or the user interface 1 being represented. In particular, for the operation of the unit in production lines is the user interface 1 removable and therefore also portable to the unit operable.

The motor housing 4 is the motor carrier and forms at least a part of the reservoir of the pump, not shown. At the front end of the engine is a fluid cooler 5 To ensure a multifunctional use, eg for continuous operation of the unit. Integrated in the fluid circuit is a filling and filter element 3 , which is preferably arranged on top of the unit. To ensure a modular design is also not shown connector interface on top of the filling and filter element 3 arranged. The pump block forms on the motor housing 6 with the hydraulic connection the frontal closure of the motor assembly.

LIST OF REFERENCE NUMBERS

1

operator interface

2

electronics assembly

3

Filling and filter unit

4

motor housing

5

fluid cooler

6

pump block

7

display means

8th

remote control

9

Wired connection between aggregate and PC / server

10

 PC / Server

11

 Cloud

12

 Wired connection between aggregate and cloud

13

 Cover with ventilation

14

 additional reservoir

15

 Fluid connection at the additional reservoir

16

 fluid line

17

 Fluid connection on the unit (preferably with communicating operation)

18

 printer

19

 Wired connection between unit and printer

20

 Dense cap

21

 DAY

22

 reader

23

 Wireless data transfer between reader and cloud

24

 Wireless data transmission between aggregate and cloud

25

 Wireless data transmission between unit and printer

26

 Wireless data transmission between aggregate and PC / server

27

 Wireless data transmission between the unit and the reader

28

 Wireless data transfer between reader and TAG

29

 Wired connection between aggregate and reader

30

 Ventilated cap

31

 Wireless data transmission between unit and remote control

32

 Authorized group of persons Server

33

 Authorized Persons Cloud

34

 hydraulic power unit

35

 Fluid connection on the unit (preferably with suction operation)

36

 Wireless data transfer between reader and PC / server

37

 Analysis - Service

38

 Web browser service

39

 data storage

Claims (18)

Hydraulic unit ( 34 ) with an electric motor ( 4 ), at least one pump stage on a pump block ( 6 ) and an electronic assembly ( 2 ), characterized in that the electronic assembly ( 2 ) an operator interface ( 1 ), and the user interface ( 1 ) is connectable to at least one internal and / or external interface, the interface having a data cloud ( 11 ) and / or a data server ( 10 ) communicates and programs stored by the data cloud and / or the data server into the electronic assembly ( 2 ) and from the electronics board ( 2 ), and process data and / or system data from the electronics assembly ( 2 ) for storing and / or analyzing the data in the data cloud ( 11 ) and / or the data server ( 10 ) are transferable back. Hydraulic unit according to claim 1, characterized in that the electronic assembly ( 2 ) is connectable to an internal and / or external memory for the bidirectional data exchange of programs and / or process data and / or process parameters and / or system data. Hydraulic unit according to claim 1 or 2, characterized in that the user interface ( 1 ) by means of magnet holder and / or screw-on points and / or Velcro fastener and / or belt fastener attachable and from the hydraulic unit ( 34 ) is removable and externally from the hydraulic unit ( 34 ) by means of magnet holder and / or screw-on points and / or Velcro and / or belt fastener attachable and operable. Hydraulic unit according to claim 1 to 3, characterized in that an externally arranged, ventilated additional reservoir ( 14 ) is fluid-dynamically connectable and preferably the closure lid ( 30 ) of the unit is performed with aeration. Hydraulic unit according to claim 3, characterized in that an externally arranged, ventilated additional reservoir ( 14 ) via a fluid line ( 16 ) with the reservoir ( 4 ) is connectable, wherein the closure lid ( 20 ) is designed to be airtight for operation. Hydraulic unit according to one of claims 1 to 5, characterized in that the hydraulic unit ( 34 ) with sensors for deployment physical sensor values are provided by means of the sensor signals and these as a controlled variable and / or control variable and / or manipulated variable and / or control parameters and / or additional parameters in the electronics assembly ( 2 ) for further processing and process control and hydraulic power unit control and process validation. Hydraulic unit according to one of claims 1 to 6, characterized in that the hydraulic unit ( 34 ) with an external code reader ( 22 ) can be connected, with the code reader in particular application names are received and through this turn internal and / or externally stored program selections done and / or documentation content for the process and / or maintenance intervals of the hydraulic unit and / or accessories detected and / or visualized and / or stored and / or reported. Hydraulic unit according to one of claims 1 to 7, characterized in that the external code reader is a mobile phone with camera function and that preferably application images and / or optically readable codes the hydraulic unit ( 34 ), the server ( 10 ) and / or the cloud ( 11 ) to document the use case. Hydraulic unit according to one of claims 1 to 8, characterized in that an external printer is connectable to the unit, which process results and / or process status and / or process quality and / or program information and / or system information and / or service information and / or maintenance information outputs. Method for controlling a device according to one of Claims 1 to 9, characterized in that the unit receives programs and / or application names to be executed by the code reader, by means of which an automated program start on the hydraulic unit ( 34 ) and / or user information and / or documentation data and / or process information can be read in and / or stored locally. Method according to claim 10, characterized in that the external memory ( 10 ) or ( 11 ) or ( 22 ) transmits by means of at least one special service screwing and / or software updates and / or instructions to the hydraulic unit for execution, by means of which an automated program start and / or program transmission and / or visualization is carried out for execution. Method according to one of claims 10 or 11, characterized in that the hydraulic unit ( 34 ) Logs and / or system data and / or raw data to the external memory ( 10 ) or ( 11 ) or ( 22 ) which archives ( 39 ) and / or analyzed ( 37 ) and / or controlled by authorized persons ( 32 ) or ( 33 ) and / or via web browser via an online portal ( 38 ) are visualized. Method according to one of claims 10 to 11, characterized in that in the cloud ( 11 ) or on the external server ( 10 ) Analysis programs by means of comparative data, the quality of the process results review and / or assess and / or an analysis model improvements based on the existing records on comparison, which also allow statistical analysis of the processes performed and their quality. Method according to one of claims 10 to 13, characterized in that for the data in the cloud ( 11 ) at least one externally assignable access authorization is provided, by means of which a selected group of persons receives external access to the data and / or automatically informed when error processes are present, and / or informed when new process data has arrived. Method according to one of Claims 10 to 14, characterized in that transmitted program data and / or process data and / or system data contain at least one checksum or a higher-valued validity certificate, by means of which secured manipulations and / or incorrect transmissions of the transmitted program data and / or process data and / or System data detected and / or reported by the receiver and automatically retrieved by the sender in case of error. Method according to one of claims 10 to 15, characterized in that a data transmitter releases the program data and / or process data and / or system data from the own memory for deletion only after the successful transmission message. Method according to one of claims 10 to 16, characterized in that by means of a cloud online portal via an external and / or implemented on the aggregate web browser for authorized persons access to the information about necessary service intervals and / or system status messages and / or operating states and / or error messages and / or security checks is guaranteed. Use of a hydraulic power unit ( 34 ) according to one of claims 1 to 9 for the fluid supply, in particular with oil supply of tools, such as lifting cylinders, hydraulic screwdrivers, torque tools, yield strength-controlled tools, rotation angle-controlled torque tools or the like.

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