EP3039300A1 - Vérin de basculement de cabine - Google Patents

Vérin de basculement de cabine

Info

Publication number
EP3039300A1
EP3039300A1 EP14776729.7A EP14776729A EP3039300A1 EP 3039300 A1 EP3039300 A1 EP 3039300A1 EP 14776729 A EP14776729 A EP 14776729A EP 3039300 A1 EP3039300 A1 EP 3039300A1
Authority
EP
European Patent Office
Prior art keywords
cab
locking
lifting rod
sleeve
cylinder
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Withdrawn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
EP14776729.7A
Other languages
German (de)
English (en)
Inventor
Benedikt Mueller
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.)
Weber Hydraulik GmbH Germany
Original Assignee
Weber Hydraulik GmbH Germany
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weber Hydraulik GmbH Germany filed Critical Weber Hydraulik GmbH Germany
Publication of EP3039300A1 publication Critical patent/EP3039300A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B62D33/07—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable characterised by the device for locking the cab in the tilted or in the driving position
    • B62D33/071—Locking devices for cabins in driving position; Shock and vibration absorbing devices therefor
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/148—Lost-motion means between the piston and the output

Definitions

  • the present invention relates to a hydraulic cab tilt cylinder according to the preamble of claim 1.
  • a hydraulic cab tilt cylinder for tilting a cab of a truck in a tilted mounting position and for tilting back into a ready to drive unskipped driving position is known (see, document DE 197 30 499 A1).
  • the cab tilt cylinder has, inter alia, a hydraulic pump, a pressure medium container for the hydraulic fluid and a double-acting lifting cylinder, in which a central lifting rod is provided movably.
  • the lifting rod can be coupled to the cab and is connected to a piston of the lifting cylinder.
  • the piston is housed in a cylinder housing of the lift cylinder, in which the piston can move back and forth and which is connected to a chassis of the truck.
  • a control valve device controls the hydraulic inlet or the hydraulic outlet in cylinder chambers in front of and behind the piston in order to move the lifting rod either into the tilted position of the driver's cab or into the untilted, ready-to-travel position of the driver's cab.
  • the present invention seeks to further develop a hydraulic cab tilt cylinder provided for tilting a cab according to the preamble of claim 1 such that the cab tilt cylinder interacts with the oscillations of the cab can move without elaborate hydraulic control.
  • the present invention is thus based on a hydraulic cab tilting cylinder which has a lifting rod moved in a hydraulic cylinder by its piston and serves for tilting a cab of a truck from an unskinked driving position with a retracted lifting rod into a tilted mounting position with the lifting rod extended,
  • piston rod bearing for connection to the cab and with a coupling provided on the hydraulic cylinder for a chassis of the truck,
  • the oscillating lifting system is designed as the non-positive connection between the piston rod bearing and the lifting rod releasing and unlocked in the Schwinghub Schlugelarretier till.
  • the hydraulic cab tilt cylinder for hydraulically tilting a cab of a truck having a lift rod between a tilted or fully tilted position and an unskipped cab position has a ball lock means for locking the lift bar to the cab in a tilted cab position and for unlocking the lift bar from the cab the untilted position of the cab.
  • the lifting rod is rigidly connected to the cab by means of the ball locking device, without the need for hydraulic control for the process of coupling to the cab.
  • the Kugelarretier allows release of the lifting rod from the cab in the unskipped position of the cab, whereby the hydraulic cab tilt cylinder can join the vibration movements of the cab during the journey of the truck without a complex hydraulic control must be used.
  • the ball locking device according to the present invention significantly contributes to the simplification of the cab tilting cylinder, and according to the present invention, a truck-specific tilting mechanism is not required and thus dispensable.
  • the Kugelarretier demands may have a locking ball or a plurality of locking or locking balls and at least one locking cylinder, wherein the lifting rod may have at least one annular circumferential groove or a plurality of annular circumferential grooves which is or are formed perpendicular to the axis of symmetry of the lifting rod.
  • a (respective) locking ball can engage in the (respective) circumferential groove of the lifting rod for locking the lifting rod when the cab is in the untilted position.
  • the ball locking device may comprise a sleeve which is connected to the cab and in which the lifting rod is movable.
  • the sleeve may have a sleeve wall, in which a transverse bore or a plurality of transverse bores is provided with an axis of symmetry perpendicular to the axis of symmetry of the sleeve or are.
  • the at least one locking ball can be arranged in an expedient manner in the at least one transverse bore of the sleeve wall in order to prevent a movement of the at least one locking ball in the stroke direction of the To avoid lifting rod.
  • the Kugelarretier beautiful may have at least one locking unit which locks the at least one locking ball in the transverse bore of the sleeve in the radial direction perpendicular to the stroke direction of the lifting rod when the locking ball in the at least one circumferential groove of the lifting rod in a tilted
  • the locking unit may advantageously comprise at least one locking sleeve, which is arranged outside the sleeve coaxial with this and the lifting rod displaceable in the stroke direction of the lifting rod to a safe and automatic release or release of the lifting rod from the cab in his untilted driving position and a safe and automatic locking of the lifting rod on the cab to accomplish in its tilted position.
  • the locking sleeve may in turn suitably have at least one inner locking projection or locking ring, which touches the at least one locking ball against radial movement in the transverse bore or locks in order to ensure a secure and automatic locking in the tilted position of the cab can.
  • the cab tilt cylinder may have at least one stop or at least one unlocker, which strikes against the locking sleeve upon movement of the lifting rod in the untilted position of the cab and the locking sleeve or its locking projection relative to at least one locking ball to unlock the locking ball moved to safely and automatically release the lifting rod from the cab in the untilted position.
  • the Kugelarretier founded may advantageously further comprise at least one locking piston which is movably disposed in the sleeve and is guided on an inner wall of the sleeve, wherein the locking piston locks the at least one locking ball against movement from the transverse bore into the interior of the sleeve when the lifting rod is not held by the Kugelarretier issued, so the cab is in the untilted driving position.
  • the locking piston may be biased against the stroke direction of the lifting rod in the unskippered position of the cab in the direction of the lifting rod to the at least one Arretierkugel safely and automatically without hydraulic support at untilted position of the cab in the transverse bore of the sleeve to hold the Kugelarretier issued.
  • the locking sleeve can be acted upon, for example, by the force of at least one first spring, in particular at least one first helical spring, in order to enable an independent or automatic movement of the locking sleeve into its locking position in the tilted position of the driver's cab.
  • At least one additional stop sleeve can be provided, which is coupled via spring force or at least one spring, in particular via at least one coil spring, with the lifting rod and the locking sleeve with at least one further spring force or at least one another spring, in particular with at least one further coil spring, is coupled, which also acts on the locking sleeve to the automatic locking or releasing the Lifting rod without hydraulic support to allow.
  • At least one outer cylinder guided on the outside of the hydraulic cylinder in the released or unlocked state of the ball locking device can be provided on the piston rod bearing, wherein the at least one outer cylinder can engage over the locking sleeve and the sleeve and the spring surrounding it.
  • the hydraulic cylinder can be arranged at full tilted position of the cab outside the outer cylinder and / or spaced from the outer cylinder.
  • Figure 1 is a schematic cross-sectional view of an embodiment of a cab tilt cylinder according to the present invention with tilted intermediate position of the cab.
  • FIG. 2 is a sectional view of the cab tilt cylinder of Figure 1 with unlocked lifting rod at medium swing and unkept cab.
  • FIG. 3 shows a sectional view of the driver's cab tilting cylinder from FIG. 1 with the lifting rod unlocked with a minimal swinging stroke and an unskipped driver's cab, the weighting of the driver's cab or of the cabin being indicated by the arrow on the left in FIG.
  • FIG. 4 is a sectional view of the cab tilt cylinder of Figure 1 with unlocked lifting rod at maximum swing and unclipped cab, with the weight of the cab or the cabin is indicated by the arrow on the left in Fig. 4.
  • Fig. 5 is a sectional view of the cab tilt cylinder of FIG. 1 with unlocked lifting rod when tilting the cab from the untilted position to the tilted position, wherein the hydraulically actuated lifting rod abuts the end face of a locking piston and wherein by the upper arrow left in Fig. 5 the Movement and by the lower arrow on the left in Figure 5, the weight of the cab or the cabin is indicated.
  • Fig. 6 is a sectional view of the cab tilt cylinder of FIG. 1 with still unlocked lifting rod when tilting the cab from the untilted position to the tilted position, wherein the hydraulically actuated lifting rod has moved the spring-loaded locking piston for locking the lifting rod and wherein by the upper arrow left in Fig. 6 is the movement and indicated by the lower arrow on the left in Figure 6, the weight of the cab or the cabin.
  • Fig. 7 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting the cab from the untilted position to the tilted position, wherein the hydraulically actuated lifting rod is locked in the locking device, as shown in Fig. 1 is larger, and wherein through the upper Arrow left in Fig. 7 shows the movement and by the lower arrow on the left in Fig. 7, the weight of the
  • Fig. 8 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting the cab from the untilted position to the tilted position, wherein the hydraulically actuated lifting rod is locked in the locking device and is further extended due to the applied hydraulic pressure and wherein left by the upper arrow in Figure 8, the movement and indicated by the lower arrow on the left in Figure 8, the weight of the cab or the cabin.
  • Fig. 9 is a sectional view of the cab tilt cylinder of FIG. 1 when tilting the cab from the untilted position to the fully tilted position, wherein the lifting rod is locked and by the
  • Weight of the cab is further extended, wherein by the upper arrow on the left in Fig. 9, the movement and by the lower arrow on the left in Fig. 9, the weight of the cab or the cabin is indicated and wherein by the reference numeral P in Fig. 9 a throttled Dynamic pressure is designated;
  • Fig. 10 is a sectional view of the cab tilt cylinder of Figure 1 in the fully or maximum tilted position of the cab, wherein the lifting rod is locked and extended to the maximum.
  • Fig. 1 1 is a sectional view of the cab tilt cylinder of FIG. 1 when tilting the cab from the fully tilted position to the untilted position, wherein the lifting rod is locked and against the
  • Fig. 12 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting back the cab from the fully tilted position to the untilted position, wherein the lifting rod is locked and retracted further, with the upper arrow on the left in Fig. 12, the movement and through the bottom arrow on the left in Figure 12, the weight of the cab or the cab is indicated and wherein the reference numeral P in Figure 12 is a throttled back pressure.
  • Fig. 13 is a sectional view of the cab tilt cylinder of FIG. 1 when tilting back the cab from the fully tilted position to the untilted position, wherein the lifting rod is locked and retracted further, with the upper arrow on the left in Fig. 13, the movement and through the bottom arrow on the left in Figure 13, the weight of the cab or the cab is indicated and wherein denoted by the reference numeral P in Figure 13, a throttled back pressure.
  • Fig. 14 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting back the cab from the fully tilted position to the untilted position, wherein the lifting rod is locked and further retracted due to the weight of the cab, with the upper arrow on the left in Fig. 14 the movement and by the lower arrow on the left in Fig. 14, the weight of the cab or the cabin is indicated and wherein denoted by the reference numeral P in Figure 14 is a throttled back pressure.
  • Fig. 15 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting back the cab from the fully tilted position in the untilted position on the position of the middle swing beyond, wherein the lifting rod is dearretiert and wherein the upper arrow in Fig. 15, the movement 15, by the lower arrow on the left in FIG. 15, the cab or cabin suspension pulling into the center of the swinging stroke and the arrow in the center of FIG. 15 indicating the movement;
  • Fig. 16 is a sectional view of the cab tilt cylinder of Fig. 1 when tilting back the cab from the fully tilted position to the untilted position, wherein the lift rod is unlocked and retracted further due to the hydraulic pressure in the state of the mid-swing when tilted back cab corresponds, and wherein the movement is indicated by the arrow in the middle of Fig. 16;
  • FIG. 17 shows a schematic cross-sectional view of a further exemplary embodiment of a cab tilt cylinder according to the present invention in the upper region of the swinging stroke, in particular at the upper end of the swinging stroke;
  • Fig. 18 is a sectional view of the cab tilt cylinder of Fig. 17 in the lower region of the swinging stroke, in particular at the lower end of the swinging stroke.
  • FIGS. 1 to 18 Identical or similar configurations, elements or features are provided with identical reference symbols in FIGS. 1 to 18. Any design data or dimensions in FIGS. 1 to 18 are to be understood as purely exemplary and not necessarily true to scale.
  • Fig. 1 shows a cab tilt cylinder 1 for tilting a cab of a truck in a tilted position and tilting back the cab in an untilted, cab cab position according to an exemplary and preferred embodiment of the present invention
  • the cab tilt cylinder 1 in more detail a tilted intermediate position of the cab is shown.
  • the cab tilt cylinder 1 has a massive metal lifting rod 2, which is arranged rotationally symmetrical to an axis of symmetry 3 of the cab tilt cylinder 1, which is shown with a dash-dotted auxiliary line in Fig. 1.
  • the lifting rod 2 is linearly reciprocally hydraulically movable along the axis of symmetry 3, wherein the hydraulic pressure acts on a movable, hydraulikbeierschlagten piston (not shown) in a hydraulic cylinder 4.
  • the piston transmits its movement or its stroke to the lifting rod 2, which is connected to it on the Cab.
  • the hydraulic cylinder 4 is further connected to a chassis of the truck and has at its free end a Hubstangenlagerung 5, in which the lifting rod 2 is guided.
  • the cab tilt cylinder 1 has on the side of the cab further an annular eye portion 6 for connecting the cab tilt cylinder 1 to the cab of the truck and a solid metal lug 7 which is rigidly connected to the eye portion 6 and is rotationally symmetrical to the symmetry axis 3 of the driver's cab 1 is constructed.
  • the approach 7 has a central annular and end-side groove 7.1 and a cylindrical solid projection 7.2, which is bounded radially end face of the groove 7.1, wherein this is set back against a flat stop face 7.3 of the projection 7.2.
  • the cab tilt cylinder 1 further has a ball locking device 9 for locking or locking the lifting rod 2 in a tilted position of the cab of the truck, which is shown in Fig. 1.
  • the preferably metallic Kugelarretier beautiful 9 has a sleeve 9.1, at least one locking ball 9.2, a locking sleeve 9.3 and a locking piston 9.4.
  • the sleeve 9.1 is rigidly connected coaxially to the axis of symmetry 3 with the projection 7, the projection includes the circumference 7.2 and engages with its end on the side of the cab in the annular groove 7.1 a.
  • the sleeve 9.1 also has at least one through its sleeve wall 9.7 passing through transverse bore 9.5, in each of which a locking ball 9.2 can be used.
  • a coil spring 9.6 is arranged on the circumference of the sleeve 9.1.
  • the fitted locking piston 9.4 is housed coaxially to the axis of symmetry 3, which is movably guided along the symmetry axis 3 and thus in the stroke direction of the lifting rod 2.
  • a further coil spring is housed 9.71, which biases the locking piston 9.4 in the direction of the lifting rod 2 out.
  • the locking piston 9.4 has an annular step 9.8, which is formed on a part of its circumference terminal to the lifting rod 2 out.
  • a flat end face 9.41 of the locking piston 9.4 is formed perpendicular to the symmetry axis 3 and parallel to the axis of symmetry of the transverse bore 9.5 in the sleeve 9.1.
  • the locking piston 9.4 holds the locking ball 9.2 in the transverse bore 9.5 or opening from below, when the lifting rod 2 is in the untilted position of the cab, that is solved and decoupled from the cab.
  • the locking sleeve 9.3 comprises the sleeve 9.1 and is located on the inside of an attachment 7 fixed to the outer cylinder 8.
  • the locking sleeve 9.3 has a radially inwardly projecting, annular locking projection 9.9, which locks the locking ball 9.2 in the transverse bore 9.5 of the sleeve 9.1 against a radial movement to the outer cylinder 8 in the tilted position of the cab, as shown in Fig. 1.
  • the locking sleeve 9.3 can be moved by an unlocking means, in particular by a stop formed by the free end of the hydraulic cylinder 4 5.12, against the force of the spring 9.6 in the stroke direction towards the neck 7, whereby the locking projection 9.9 unlocks the locking ball 9.2 radially and releases, without that this is released from the transverse bore 9.5.
  • the lifting rod 2 has in the region of its end, which engages in the sleeve 9.1, a circumferential closed Circumferential groove 2.1, in which the locking ball 9.2 is fitted to the lifting rod 2 in the tilted position of the cab firmly connected to be able to lock frictionally.
  • the locking sleeve 9.3 is then moved against the force of the coil spring 9.6 to approach 7 linear direction in the stroke direction so far that the locking projection 9.9 releases the locking ball 9.2, which can now move in the radial direction up to a stop on an inner side of the locking 9.3 9.3 something, without being completely free.
  • the further helical spring 9.71 exerts a force on the locking piston 9.4, which abuts with its end face 9.41 on the end face of the lifting rod 2 and thus transmits the spring force of the helical spring 9.71 to the lifting rod 2 in the direction of the chassis.
  • the force of another coil spring acts 9.72 in the stroke direction, which extends between the locking piston 9.4 and the lifting rod 2. Due to the applied spring force the locking ball 9.2 is thus moved from its locking engagement position in the circumferential groove 2.1 of the lifting rod 2 out in the radial direction to the inside 9.31 of the locking sleeve 9.3 down to the stop, causing the locking ball 9.2 completely out of the circumferential groove 2.1 of the lifting rod 2 radially out emotional.
  • the locking ball 9.2 then comes into contact with a peripheral surface 2.2 of the lifting rod 2 and is thus arranged in this position in the transverse bore 9.5 of the sleeve 9.1 between the inside 9.31 of the locking sleeve 9.3 and the peripheral surface 2.2, but still within the transverse bore 9.5 held the sleeve 9.1.
  • the locking piston 9.4 moves to stop with the lifting rod 2 until its gradation 9.8 or grading surface comes to lie under the locking ball 9.2 and strikes her after the locking ball 9.2 has left the peripheral surface 2.2 of the lifting rod 2. In this reached position, the locking ball 9.2 is then arranged and held in the transverse bore 9.5 of the sleeve 9.1 between the inside 9.31 of the locking sleeve 9.3 and the gradation 9.8.
  • the lifting rod 2 is thus automatically released in the untilted position of the cab and is no longer connected to the cab, and is located in the range of the swing, causing the kabinen matteren bearing, the annular eye part 6, fixed Kugelarretier adopted 9 free with the vibrations of the Cab can move without a complex hydraulic control would be required.
  • the lifting rod 2 is first against the force of the coil spring 9.72 in the opposite direction of stroke to the cab hydraulically moved until it strikes with its front side on the front page 9.41 of the movable locking piston 9.4, which is at the stop with its gradation 9.8 is still under the locking ball 9.2.
  • the locking cylinder 9.4 Due to the pressure of the lifting rod 2, the locking cylinder 9.4 is moved within the sleeve 9.1 against the force of the coil spring 9.71 until the locking ball 9.2 rests on the peripheral surface 2.2 of the lifting rod 2 and finally engages in the circumferential groove 2.1.
  • the lifting rod 2 is thereby locked at the beginning of the tilting of the cab and firmly and rigidly connected to the cab.
  • the locking piston 9.4 strikes in the tilted position of the cab on the stop end face 7.3 of the projection 7.2 of the projection 7 at. Simultaneously with the intervention of the locking ball 9.5 in the circumferential groove 2.1 of the lifting rod 2, the locking projection 9.9 of the locking sleeve 9.3 is pushed by the force of the coil spring 9.6 in a position above the locking ball 9.2, whereby a radial movement of the locking ball 9.2 from the circumferential groove 2.1 of the lifting rod 2 out prevented and a secure and automatic locking of the lifting rod 2 is achieved on the cab of the truck in a tilted position.
  • Fig. 17 shows a schematic, half-cross-sectional view of a rotationally symmetrical cab tilt cylinder 10 according to another embodiment of the present invention with a arranged in a hydraulic cylinder 40 lifting rod 200 in the dissolved unskipped position of the cab in the upper part of the swing stroke, wherein the same name identical parts with the same function should be.
  • Fig. 18 shows the schematic half-sectional view of the cab tilt cylinder 10 of FIG. 17 in a position shortly before the start of tilting the cab or just before locking, but also briefly after unlocking the lifting rod 200, in the lower part of the swing.
  • the solid, metal and rotationally symmetrical lift rod 200 is in turn linearly reciprocally hydraulically movable in the stroke direction, wherein the hydraulic pressure on a movable piston (not shown) acts, which transfers its stroke to the lift rod 200 which is connected to it.
  • the lifting rod 200 is reciprocable within the hydraulic cylinder 40 from the piston and forth.
  • Hydraulic cylinder 40 carries the lifting rod 200. Through the stop 41 extends centrally the lifting rod 200, and the stop 41 is guided on the inside 80.1 of the outer cylinder 80 movable in the stroke direction in the range of the swinging stroke.
  • At the periphery of the inner cylinder 40 has at least two circumferential, flattened guide rings 42, against which the hydraulic cylinder 40 is supported against the inner side 80.1 of the outer cylinder 80.
  • the guide rings 42 may be made of plastic.
  • the cab tilt cylinder 10 has on the side of the cab further an annular eye portion (not shown) as a cab-side bearing for frictionally connecting the lifting rod 200 to the cab of the truck when tilting and a solid metal lug 70 which is rigidly connected to the eye portion and rotationally symmetrical to Symmetryeachse 30 of cab tilt cylinder 10 is constructed.
  • the projection 70 has a central cylindrical and end-side receptacle 70.1 and an annular, solid, circumferential outer projection 70.2 which limits the receptacle 70.1 radially.
  • the cab tilting cylinder 10 further has a ball locking device 90 for locking or locking the lifting rod 200 in the tilted position of the cab of the truck.
  • the Kugelarretier noisy 90 has a sleeve 90.1, at least one locking ball 90.2, a locking sleeve 90.3 and a locking piston 90.4.
  • the sleeve 90.1 is coaxial with the axis of symmetry 30 rigidly connected to the projection 70 and engages the receptacle 70.1 a.
  • the sleeve 90.1 also has at least one through its sleeve wall 90.7 continuous transverse bore 90.5, in each of which a locking ball 90.2 is fitted.
  • the fitted rotationally symmetrical locking piston 90.4 is accommodated coaxially with the axis of symmetry 30, which is movably guided along the axis of symmetry 30 and thus in the stroke direction of the lifting rod 200.
  • another coil spring 90.71 is housed, which presses the locking piston 90.4 in the direction of the lifting rod 200 back.
  • the locking piston 90.4 has an annular step 90.8, which is formed at a part of its circumference terminal to the lifting rod 200 out.
  • a flat end face 70.3 of the locking piston 90.4 is formed perpendicular to the axis of symmetry 30 and parallel to the axis of symmetry of the transverse bore 90.5 of the sleeve 90.1.
  • the locking piston 90.4 holds the locking ball 90.2 in the transverse bore 90.5 fixed when the lifting rod 200 is released in the untilted position of the cab and can move freely back and forth.
  • the locking sleeve 90.3 comprises the sleeve 90.1 and has a radially inwardly projecting, annular locking projection 90.9, which locks the at least one locking ball 90.2 in the transverse bore 90.5 of the sleeve 90.1 against radial movement towards the outer cylinder 80 in the untilted position of the cab.
  • the locking sleeve 90.3 can be moved against the force of an outer coil spring 90.6 in the stroke direction to approach 70 through an unlocking particular stop, which is realized here by the free end 41 of the hydraulic cylinder 40, whereby the locking projection 90.9 the locking ball 90.2 releases and thereby the ball locking device 90 unlocked.
  • the outer coil spring 90.6 extends between the outer projection 70.2 of the projection 70 and an annular projection 90.91 of the locking sleeve 90.3, which protrudes toward the outer cylinder 80 out.
  • the lifting rod 200 has in the region of its end, which engages in the sleeve 90.1, a circumferential circumferential groove 20.1, in which the locking ball 90.2 is fitted formally to connect the lifting rod 200 in the tilted position of the cab and locked with the Kugelarretier Sk 90 non-positively can.
  • a stop sleeve 60 is arranged, which has a first protruding, annular stop projection 60.1, which abuts the projection 90.91 frontally, and a second annular stop projection 60.2, which projects toward the outer cylinder 80.
  • a further helical spring 60.3 extends, which is supported at the free end 41 of the hydraulic cylinder 40.
  • the piston (not shown) is first moved in the stroke direction toward the cab by the hydraulic pressure until the lift rod 200 strikes with its free end on an end face 70.3 of the movable locking piston 90.4 , which is at the stop with its gradation 90.8 still under the locking ball 90.2.
  • the locking projection 90.9 releases the locking ball 90.2, which can now move slightly in the radial direction until it stops at an inner side 90.31 of the locking sleeve 90.3.
  • the coil spring 90.71 exerts pressure on the locking piston 90.4, which abuts with its end face 70.3 on the end face of the lifting rod 200 and thus transmits the spring force of the coil spring 90.71 on the lifting rod 200 in the direction of the chassis out.
  • the locking ball 90.2 thereby comes into contact with the peripheral surface 20.2 of the lifting rod 200 and is thus arranged and held in this position in the transverse bore 90.5 of the sleeve 90.1 between the inside 90.31 of the locking sleeve 90.3 and the peripheral surface 20.2.
  • the locking piston 90.4 moves to stop with the lifting rod 200 until its gradation 90.8 or grading surface is below the locking ball 90.2 after the locking ball 90.2 has left the peripheral surface 20.2 of the lifting rod 200. In this position reached the locking ball 90.2 is then in the transverse bore
  • the lifting rod 200 is then moved by the force of the coil spring 60.3 in the stroke direction towards the chassis until the untilted position of the cab is reached.
  • Lifting rod (compare first embodiment according to FIG. 1 to FIG.
  • Circumferential groove, in particular circumferential closed circumferential groove, of the lifting rod 2 (cf., first embodiment according to FIGS. 1 to 16)
  • Symmetry axis of cab tilting cylinder 1 (compare first embodiment according to FIG. 1 to FIG.
  • Hydraulic cylinder or inner cylinder (compare first embodiment according to Fig. 1 to Fig. 16) Mounting of the lifting rod 2 (compare first embodiment according to Fig. 1 to Fig. 16)
  • Unlocking means in particular stop, or free end of the hydraulic cylinder or inner cylinder 4 (cf., first embodiment according to FIGS. 1 to 16)
  • Piston rod bearing in particular annular eye part (cf., first embodiment according to FIGS. 1 to 16)
  • Projection, in particular a cylindrical projection, of the projection 7 (compare first embodiment according to FIGS. 1 to 16)
  • End face or end face, in particular flat end face or flat end face, of the projection 7.2 (cf., first embodiment according to FIGS. 1 to 16).
  • Ball locking device (see first exemplary embodiment according to FIGS. 1 to 16)
  • Locking ball (compare first embodiment according to FIG. 1 to FIG.
  • Locking sleeve (cf., first embodiment according to FIGS. 1 to 16)
  • Locking piston or locking cylinder (compare first embodiment according to Fig. 1 to Fig. 16) end face, in particular flat end face, of the locking piston 9.4 (compare first embodiment according to Fig. 1 to Fig. 16).
  • Transverse bore in particular radial transverse bore, in sleeve wall 9.7 (cf., first exemplary embodiment according to FIGS. 1 to 16)
  • Spring in particular outer helical spring (cf., first exemplary embodiment according to FIGS. 1 to 16)
  • Sleeve wall of the sleeve 9.1 (compare first embodiment according to FIGS. 1 to 16)
  • Locking projection in particular annular locking projection (compare first embodiment according to FIG. 1 to FIG.
  • Cab tilt cylinder in particular hydraulic cab tilt cylinder (see second embodiment according to Fig. 17 and Fig. 18)
  • Circumferential groove, in particular circumferential closed circumferential groove, of the lifting rod 200 (cf., second exemplary embodiment according to FIGS. 17 and 18) Peripheral surface of the lifting rod 200 (see second embodiment according to Fig. 17 and Fig. 18) axis of symmetry of the cab tilting cylinder 10 (see second embodiment of FIGS. 17 and 18)
  • Unlocking means, in particular stop, or free end of the hydraulic cylinder or inner cylinder 40 see second embodiment according to Fig. 17 and Fig. 18).
  • Stop sleeve see second embodiment according to FIG. 17 and FIG.
  • first stop projection in particular the first annular stop projection, of the stop sleeve 60 (see second exemplary embodiment according to FIGS. 17 and 18)
  • outer spring in particular outer helical spring (see second exemplary embodiment according to FIGS. 17 and 18)
  • Projection, in particular annular peripheral outer projection, of the projection 70 (see second exemplary embodiment according to FIGS. 17 and 18)
  • End face or end face, in particular flat end face or flat end face, of the locking piston or locking cylinder 90.4 (cf., second exemplary embodiment according to FIGS. 17 and 18).
  • Ball locking device (compare second exemplary embodiment according to FIGS. 17 and 18)
  • Arresting ball (see second embodiment according to FIG. 17 and FIG.
  • Locking sleeve (see second exemplary embodiment according to FIGS. 17 and 18)
  • Locking piston or locking cylinder see second embodiment according to Fig. 17 and Fig. 18
  • Transverse bore in particular radial transverse bore, in sleeve wall 90.7 (see second embodiment according to FIG Fig. 17 and Fig. 18)
  • Spring in particular outer helical spring (cf., second exemplary embodiment according to FIGS. 17 and 18)
  • Sleeve wall of the sleeve 90.1 (compare second embodiment according to Fig. 17 and Fig. 18) further spring, in particular further helical spring (cf., second embodiment according to Fig. 17 and Fig. 18).
  • Locking projection in particular annular locking projection (see second exemplary embodiment according to FIGS. 17 and 18)

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention vise à améliorer un vérin hydraulique de basculement de cabine (1; 10) comportant une tige (2; 200) déplacée par son piston dans un vérin hydraulique (4; 40) et qui sert à basculer une cabine d'un camion d'une position de roulage non basculée avec la tige de vérin (2; 200) rentrée, dans une position de montage basculée avec la tige de vérin (2; 200) sortie, comprenant à son extrémité un palier de tige de piston (6) réalisé en particulier sous la forme d'un élément à œillet, destiné à être relié à la cabine, ainsi qu'une fixation articulée prévue pour relier le vérin hydraulique (4; 40) au châssis du camion. Lorsque la tige (2; 200) est rentrée dans le vérin hydraulique (4; 40), un système de course oscillante autorise, dans la position de roulage, un mouvement relatif entre la cabine et le châssis dans une zone de course oscillante prédéfinie, de telle sorte que le vérin de basculement de la cabine (1; 10) peut se déplacer avec les oscillations de la cabine sans une commande hydraulique complexe. A cet effet, le système de course oscillante est conçu sous la forme d'au moins un système d'arrêt à bille (9; 90) qui annule une liaison à force entre le palier de tige de piston (6) et la tige de vérin (2; 200) et qui est libéré ou déverrouillé dans la zone de course oscillante.
EP14776729.7A 2013-09-01 2014-09-01 Vérin de basculement de cabine Withdrawn EP3039300A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013109512 2013-09-01
DE102013109511 2013-09-01
PCT/IB2014/064182 WO2015028996A1 (fr) 2013-09-01 2014-09-01 Vérin de basculement de cabine

Publications (1)

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EP3039300A1 true EP3039300A1 (fr) 2016-07-06

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EP14776729.7A Withdrawn EP3039300A1 (fr) 2013-09-01 2014-09-01 Vérin de basculement de cabine

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EP (1) EP3039300A1 (fr)
BR (1) BR112015009745A2 (fr)
WO (1) WO2015028996A1 (fr)

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CN113606218B (zh) * 2021-08-13 2022-04-12 安徽德鸿机件制造有限公司 一种卡车驾驶室液压油缸
CN113666315B (zh) * 2021-08-23 2023-05-23 东风柳州汽车有限公司 驾驶室翻转装置

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Publication number Priority date Publication date Assignee Title
DE19730499B4 (de) 1997-07-16 2005-03-17 Weber-Hydraulik Gmbh Hydraulische Kippvorrichtung
DE102005026084B4 (de) * 2005-06-07 2019-06-06 Man Truck & Bus Ag Vorrichtung zum Kippen eines am Fahrzeugrahmen eines Nutzfahrzeugs abgefederten Fahrerhauses
DE102006053861A1 (de) * 2006-11-14 2009-01-02 Zf Friedrichshafen Ag Schwingungsdämpfer mit Endanschlag

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BR112015009745A2 (pt) 2017-07-11
WO2015028996A1 (fr) 2015-03-05

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