EP3115861A2 - Dispositif de positionnement et de guidage d'un dispositif d'actionnement d'une soupape de commande - Google Patents

Dispositif de positionnement et de guidage d'un dispositif d'actionnement d'une soupape de commande Download PDF

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Publication number
EP3115861A2
EP3115861A2 EP16177048.2A EP16177048A EP3115861A2 EP 3115861 A2 EP3115861 A2 EP 3115861A2 EP 16177048 A EP16177048 A EP 16177048A EP 3115861 A2 EP3115861 A2 EP 3115861A2
Authority
EP
European Patent Office
Prior art keywords
bolt
actuator
block
control valve
actuating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16177048.2A
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German (de)
English (en)
Other versions
EP3115861A3 (fr
Inventor
Tobias Burdik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3115861A2 publication Critical patent/EP3115861A2/fr
Publication of EP3115861A3 publication Critical patent/EP3115861A3/fr
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers

Definitions

  • the invention relates to a working machine, in particular a forestry machine, with a hydraulic system for controlling the working functions, which has a plurality of control valves, each associated with an actuator, each actuator is associated with a respective bolt, which represents the pivot axis of the actuator, the two ends of the Bolzens are each guided in a buck and on the actuator a pivoting serving control is attached.
  • Work machines are regularly equipped with a hydraulic system that controls the work functions.
  • control valves are mounted in the hydraulic circuit, by which the actuation of the working functions serving hydraulic cylinders are controlled as needed.
  • the essence of the control of the work functions is therefore to open the control valves in a targeted manner or close.
  • Hand levers are most frequently used for this purpose, which are within the range of the driver and are actuated by him, and in this way the two-, three- or multi-lever controls are operated and adjusted.
  • work machine refers to a powered and / or self-propelled machine for performing work. Such a machine may be connected to a vehicle and / or form a permanently connected unit with it.
  • a work machine is for example a machine in agriculture and / or forestry, municipal technology, as well as in the lifting and / or floor conveyor technology.
  • the invention has thus set itself the task of providing a device for supporting and guiding an actuator for a control valve in order to overcome the above-mentioned difficulties and in particular to reduce the cost of repair and repair-related downtime.
  • each block in the direction of the actuator to a parallel to the adjacent surface of the actuator extending end face describes, which surrounds the bolt on all sides, the two blocks of a bolt are mounted on the same base plate and the end of the bolt is guided as a journal in a radial roller bearing and the block engages around the roller bearing.
  • the device In a work machine with hydraulic control systems, a novel device for supporting and guiding an actuator for a control valve for controlling functions is proposed.
  • the device comprises a base plate, a control valve and an actuator.
  • control valve refers to a component for shutting off or regulating the flow of fluids. A distinction is made between pneumatic valves for shutting off or regulating the flow of gaseous media and hydraulic valves for shutting off or regulating the flow of liquids.
  • the control valve serves to control functions of working machines.
  • actuating device is understood to mean a device which effects a force exerted by a control element on the Forward control valve.
  • the type of control element such as a lever, a pedal or a drawstring, of secondary importance.
  • the actuator is pivotally connected to the control valve so that the control valve follows the movement of the actuator. Since the control valve can only move translationally along a straight line, the actuating device performs a pivoting movement about the bolt, it may be necessary to compensate the movement-changing distance between the axis of rotation of the actuating device and the force introduction point into the control valve.
  • base plate refers to a plate which has at least the two blocks of an actuating device.
  • the base plate can be made of one piece or consist of several items, such as a base plate and the blocks, which are firmly connected to each other, for example, screwed.
  • Decisive is also the storage of the actuator in the blocks, which ensures an approximate backlash and only allows the movement about the axis of rotation of the bearing.
  • the aim to achieve a longevity of the bearing of the actuator is that a movement of the actuator in the respective bilateral blocks with a minimum of wear is possible.
  • the higher the wear the earlier the attachment of the actuator are knocked out and must be renewed.
  • a “rolling bearing” is understood to mean a bearing in which rolling bodies are arranged between an inner ring and an outer ring are, which reduce the frictional resistance. Such a bearing thus serves to fix the axes and shafts, wherein they absorb, depending on the design, radial and / or axial forces and at the same time allow the rotation of the shaft or the so mounted on an axle components.
  • the device comprises a base plate, a control valve and an actuator.
  • the device can also be designed such that components of the control valve are integrated into the base plate, such as an additional dirt wiper.
  • the device comprises a base plate and more than just a control valve with the appropriate number of actuators, such as two, three, four or more control valves and actuators.
  • a base plate with the appropriate number of bearing blocks is conceivable for all actuators, which are each assigned to a control valve. It is important that all controls for the control valves are arranged on the same base plate. This offers the advantage that only the base plate must be mounted on the control valve block during assembly. As a rule, the base plate is screwed onto the control valve block.
  • the use of the base plate also offers the advantage that the device according to the invention can be adapted by simple adaptation of the base plate to different control valve blocks. This is realized by the hole pattern and / or the geometry of the base plate.
  • the base plate adapted to the control valve block with the corresponding number of actuators, control valves and bearing blocks is easily connectable to a control valve block.
  • the realization of such a connection is within the skill of the art, so that it is conceivable, for example, that the base plate is screwed onto a control valve block or is screwed with this.
  • the two blocks of an actuating device are combined in one piece to form a "U" and form a bearing block.
  • a U-shaped design offers the advantage that the bearing block consists of a single part, which is either connected to the base plate and / or screwed to it.
  • the actuator moves on a circular path whose axis is defined by the bolt; on the other hand, the control valve associated with it makes a straight-line movement.
  • the control valve is attached via a slotted guide in the actuator, d.
  • the actuating device has through openings in the form of a slot in which a connecting element, the sliding block, is fitted in such a way that a relative movement in the longitudinal direction, but not perpendicular thereto is possible.
  • the movement of the sliding block serves to compensate for the movement discrepancies that occur on the one hand by the rotational movement and on the other hand by the translation movement (of the control valve).
  • the lateral guidance of the sliding block ensures that the required power transmission between the two elements takes place.
  • the rolling bearing is a deep groove ball bearing.
  • a “deep groove ball bearing” is the most common type of radial roller bearing designed to receive predominantly radial forces. Since the balls also lie laterally close to the grooves, thus rings and balls are axially not mutually displaced, this bearing can also absorb small axial forces.
  • a deep groove ball bearing is inexpensive, to minimize the costs of manufacturing and maintenance.
  • the actuating device is a lever, a gear, a connecting rod or a cam.
  • the actuating device can be adapted to different designs of a control valve.
  • the operating element is a hand lever or a foot pedal.
  • the control element By the control element, a force on the actuator to the control valve is forwarded.
  • a hand lever is located in the hand area of a machine operator and can be operated by hand.
  • a foot pedal is located in the foot area of a machine operator and can be operated with one foot.
  • the bolt can be integrally formed on both sides projecting into the actuator.
  • the bolt is a separate component, is inserted through a precisely fitting opening within the actuator and learns its fixation characterized in that in the actuator a clamping screw is introduced, which in the radial direction on the Bolt is aligned and braced when actuated the bolt.
  • FIGS. 1 and 2 is a three-lever control with an inventive device (100) for supporting and guiding an actuator (9, 10) for a control valve (2) for control of functions of working machines in isometric representation ( FIG. 1 ) and in a sectional view ( FIG. 2 ).
  • the three-lever control with the device (100) according to the invention comprises a control valve block (1) on which a single base plate (3) for all three control valves (2) with six cylinder screws (4) is screwed.
  • the base plate (3) according to the invention also has three positively positioned bearing blocks (5 + 7), which consist of three left legs (5) and three right legs (7).
  • the legs of the bearing blocks (5 + 7) are screwed with a total of twelve cylinder screws (13, 14) to the base plate (3).
  • the base plate (3) with the bearing blocks (5, 7) can not only be produced inexpensively, but also adapt to different control valve blocks (1).
  • the use of the base plate (3) has the advantage that the device according to the invention can be adapted by simple adaptation of the base plate (3) to different control valve blocks (1), such as the control valve block (1) of a three-lever control ( FIGS. 1 and 2 ). This is realized by the hole pattern and / or the geometry of the base plate (3).
  • the three left and three right legs of the bearing blocks (5, 7) each comprise a rolling bearing (6).
  • six rolling bearings (6) are included, which ensure a reliable working and durable storage and management of the actuators (9, 10).
  • a bolt (8) as a rotation axis for the actuators (9, 10) through the roller bearing (6) of the trestle (5) and the rolling bearing (6) of the associated right trestle (7).
  • lateral guidance and storage of the actuators (9, 10) in each bearing block (5 + 7) ensures an approximately freedom of play, since only the movement of the actuators (9, 10) about the axis of rotation of the bearing is possible.
  • the storage and management of the actuators (9, 10) is stabilized.
  • Such a tailor-made lateral guide increases the longevity of the bearing of the actuators (9, 10), for example, by premature deflection of the bearings is prevented. In this way, not only the frequency of repair-related failures, but also the cost of these are drastically reduced.
  • FIGS. 1 and 2 three control valves (2) and three actuators (9, 10) shown.
  • the actuating device (9) can be connected to a foot pedal, not shown.
  • the other two actuators (10) are connected to a hand lever (20), at the exposed end of a ball head (21) is arranged to increase the ease of use for a machine operator.
  • FIG. 1 while the arrow indicates the direction of movement (-x, + x) of the hand lever (20), whereas the arrow in FIG. 2 indicates the direction of movement (-z, + z) of the control valve (2).
  • the three actuators (9, 10) have a total of six blocks (11), three short bolts (12) and six lock washers (15). These serve as a backdrop to the change of the Distance between the top of the control valve (2) and the axis of rotation of the actuator (9, 10) to compensate for the actuation of the control valve (2).
  • FIGS. 1 and 2 On the base plate (3) opposite side of the actuating means (9, 10) are as clearly in FIGS. 1 and 2 shown, three cylinder screws (16) as clamping screws and three hex nuts (17).
  • the cylinder screws (16) clamp the long bolts (8), whereas the hexagon nuts (17) secure the cylinder screws (16) against unintentional loosening.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
EP16177048.2A 2015-07-01 2016-06-30 Dispositif de positionnement et de guidage d'un dispositif d'actionnement d'une soupape de commande Withdrawn EP3115861A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015110625.6A DE102015110625A1 (de) 2015-07-01 2015-07-01 Vorrichtung zur Lagerung und Führung einer Betätigungseinrichtung für ein Steuerventil

Publications (2)

Publication Number Publication Date
EP3115861A2 true EP3115861A2 (fr) 2017-01-11
EP3115861A3 EP3115861A3 (fr) 2017-01-25

Family

ID=56896308

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Application Number Title Priority Date Filing Date
EP16177048.2A Withdrawn EP3115861A3 (fr) 2015-07-01 2016-06-30 Dispositif de positionnement et de guidage d'un dispositif d'actionnement d'une soupape de commande

Country Status (2)

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EP (1) EP3115861A3 (fr)
DE (1) DE102015110625A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795280A (en) 1972-06-23 1974-03-05 Caterpillar Tractor Co Three-way lever control for hydraulic control circuit
EP0051586B1 (fr) 1980-01-26 1984-11-07 Massey-Ferguson Services N.V. Disposition de levier de commande

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429037A (en) * 1994-05-20 1995-07-04 Komatsu Dresser Company Three-function control mechanism employing a single control lever
JP3659513B2 (ja) * 1995-02-13 2005-06-15 デルタ工業株式会社 自動車用チェンジレバーの軸受け構造
DE19927618A1 (de) * 1999-06-17 2000-12-21 Bayerische Motoren Werke Ag Lagerung eines hängenden Pedalhebels in einem Kraftfahrzeug
WO2007109827A1 (fr) * 2006-03-28 2007-10-04 Aimbridge Pty Ltd Liaison de deux logements de levier par un element d'etancheite
CN204143294U (zh) * 2014-09-30 2015-02-04 深圳市大疆创新科技有限公司 摇杆装置及遥控器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795280A (en) 1972-06-23 1974-03-05 Caterpillar Tractor Co Three-way lever control for hydraulic control circuit
EP0051586B1 (fr) 1980-01-26 1984-11-07 Massey-Ferguson Services N.V. Disposition de levier de commande

Also Published As

Publication number Publication date
EP3115861A3 (fr) 2017-01-25
DE102015110625A1 (de) 2017-01-05

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