FR2573613A1 - DEVICE FOR BLOCKING AN ADAPTER OF A CROP AGRICULTURAL MACHINE PERFORMING PENDULUM MOVEMENT ON TWO AXES. - Google Patents

Abstract

A) DEVICE FOR LOCKING AN ADAPTER OF AN AGRICULTURAL HARVESTING MACHINE PERFORMING A PENDULUM MOVEMENT ON TWO AXES. B) DEVICE CHARACTERIZED IN THAT IT IS PROVIDED, ON EACH OF THE TWO SIDES, ON THE FORMWORK1 OF THE INCLINED CARRIER, A STOP3, 3 WHICH CAN BE LOCKED OR RELEASED BY A STOPPATCH5 SUBMITTED TO A SPRING, INCLUDING INCLINED PLANS INPUT, EXTENDING TANGENTIALLY TO THE INTERNAL ROTATION CIRCLE OF THE UPPER COUPLING 4 ELEMENT, MOBILE IN TWO PLATES OF A BALANCING CHASSIS4, 10, 10 AND INCLINED LIFT PLANS MORE FLATTENED, IN POSITION WORK, PARALLEL TO THE GROUND. C) THE INVENTION RELATES TO A DEVICE FOR LOCKING AN ADAPTER OF AN AGRICULTURAL HARVESTING MACHINE PERFORMING A PENDULUM MOVEMENT ON TWO AXES.

Description

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  DEVICE FOR BLOCKING AN ADAPTER OF A MACHINE

  AGRICULTURAL HARVEST PRODUCING PENDULUM MOVEMENT

ON TWO AXES

  The invention relates to a device for blocking an agricultural harvesting machine adapter, making a pendulum movement on two axes, in a specific position on an inclined conveyor, on which it must remain during transport in the fields, any pendulum movement or oscillation

  on the inclined carrier being deleted.

  Self-propelled harvesting machinery, especially combine harvesters

  and the loader-loaders are equipped with

  receiverships which allow to connect the

  different adaptable trimmings, to cut,

  receive and evacuate the harvest. For this purpose, the

  adaptable trimmings are attached to the front part of the frame of a feed installation in such a way that they can fit, for the most part,

  on a plane, to field accidents.

  Thus, DE-OS 30 41 203 discloses a combine cutting table suspension in which the adaptable installation is removably attached to a separate chassis which is centrally rotatably attached to the device. while a device for locking the adaptable instrument with the frame is provided, to prevent any longitudinal displacement between the frame and the feed device and to control at will the importance or range of motion chassis rotation. For this purpose, it is mounted on both sides, a rotation control in the form of screw devices, which serves to limit the rotational movement of a receiving section and, consequently, to control the rotation of the frame reception

on the horizontal axis.

  On the lower part of the frame acts a hydraulic cylinder which is mounted on the base machine, and through which

  it is possible to rotate the

  adaptable trument. The receiving frame has, on its upper face, a U-shaped connection section, on or in which will be received the transverse support of the adaptable instrument, which will lend itself to it geometrically, and which will be locked and locked in a position determined in advance, by means of a

  locking member stretched in advance elastically.

The defects of such a configuration

  of the construction reside in that the chassis connected by the screw device with the conveyor inclined, firmly, in a position determined at

  the advance does not allow vertical movement of the

  adaptable trunk angled forward towards the ground.

  In addition, the screw fixing of the frame in a posi-

  determined by means of oblong holes is expensive from the point of view of the manufacturing techniques, and is

  the cause of high expenses in materials and assembly.

On the other hand, the articulation of

  the adaptable instrument on the chassis, on the point-

  hitch, is unfavorable to a joint from- the zero position, when the ground is

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  unequal, and therefore requires significant booster forces. The object of the invention is to provide a device for blocking an adapter of a harvesting machine performing a two-axis pendulum movement, a device that is movable on two axes, making it easy to articulate the adaptable instrument, the load peaks. which can be substantially attenuated by a direct supply of power to the inclined conveyor. The object of the invention is to give a device intended to block a

  adapter of a harvesting machine, performing a movement

  two axes, a configuration such that the maximum load peaks acting, in particular during transport in the fields of the harvesting machine, due to oscillation of the adapter, on the inclined conveyor and the frame sway, are attenuated by blocking the position of the adapter on the inclined conveyor and, consequently, by the suppression of any pendulum movement, these forces being induced directly on the conveyor

  tilted without affecting the swing frame.

  This result is obtained according to the invention because, on each of the two sides, on the formwork of the inclined conveyor, there is a stop which can be locked or released by a spring-loaded catch pawl with entrance inclined planes, extending tangentially

  the inner rotation circle of the coupling element

  higher, mobile in two planes of a swinging frame and inclined planes of

  flattened extending, in working position, parallel-

in the field.

In, or on this support, the

  Adaptable harvesting trestle is lifted from the transport trolley and brought into a transport or working position, The ascent of the transport trolley adapter provides that, first, the hitching points

  upper parts of the entire swing frame-

  inclined carrier box are hooked into the adapter sockets and then the carrier

  tilted upwards with the swing frame

  the adapter slips by its own weight, when the lifting operation continues, with the

  articulated lower part, in the receiving elements

  provided for this purpose in the lower part of the

  swing frame. For this, the element of accou-

  mobile in two planes of a swing frame

  is brought, by means of a lifting jack mounted centrally

  on the trunk of the inclined conveyor, by sliding on an inclined input plane and an inclined upward incline, in a rigid working position, released from the stop pawl urged by a spring, which is freely applied to the coupling element. To ensure the safety of the hooking and lifting, even if the position of the harvesting machine is unfavorable, for example in a fold of the ground, the distance of the upper point of coupling relative to the point

lower must expand.

  After the operation of lifting and setting in working position, the adapter is lowered, while the coupling element slides from the stop and the locking pawl, biased by a spring locks this stop, blocks it at its lower connection point on the inclined conveyor, and prepares for commissioning. For the transport route to the workplace, the adapter is moved back to a transport position, while

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  the coupling element of a tilting frame, movable in two planes, is brought by means of a jack

  mounted centrally on the trunk of the trans-

  inclined carrier, sliding on the inclined input planes, in front of the stop locked by the stop pawl solicited by a spring, in a terminal position of immobility, parallel to the upper edge of the entrance. To guarantee the centering of the catch distributing the load of the adapter regularly on the swinging frame, and to correct, if the inclination of the ground is unfavorable to the place where one works, a possible offset of the 'adapter

  from its central position, the swing frame

  may be set up in a relevant position

  centrally on the formwork of the inclined conveyor, by means of a lug, directed vertically downwards on the coupling element, and penetrating into a centering element placed in the middle on the

  inclined conveyor formwork, provided with an opening

  taper and parallel guidance.

In this position of adapta-

  on the inclined conveyor formwork, any swinging motion is suppressed and there can be no oscillation of the adapter on the inclined conveyor and, consequently, the force resulting from the load of the adapter will simply be transmitted directly to the carrier inclined, via the upper coupling element. In the working position, on the contrary, where the adapter is pushed by the hydraulic cylinder completely out of the stops and where the inclined conveyor formwork has been lowered by the hydraulic cylinders on the ground and is held by tension springs in a floating position reducing the pressure on the soles of the outsoles, there is a transmission of the load peaks produced by the oscillation and the pendular movement of the adapter on the lower hinge point on the swinging frame and on the inclined conveyor, as well as on the outsoles, so that the sway frame can be executed

  in a relatively lightweight construction mode.

  The invention is described in more detail below according to an exemplary embodiment and with reference to the accompanying drawings. FIG. 1 is a perspective view of the inclined conveyor. FIG. Fig. 3 is a detail of the upper coupling element in the locked state; Fig. 4 is a detail of the upper coupling element in the open state; Fig. 5 is a detail of the upper coupling element in the locked state; detail of the upper coupling element with the swinging frame hung, and the locking pawl laid, - Figure 6 is a side view

  in the lifting position of the transport frame.

  It is fixed on each side of the upper edge of the front opening of the formwork of the inclined conveyor 3 of a harvesting machine 2, which is not shown in more detail, abutments 3, 3 ', on which is received as part of a swinging frame 4, 10, 10 ', a coupling element 4. On the stops 3, 3' is mounted a locking pawl, having the shape of an angle lever movable on a center of rotation 6, which is biased forward by a spring 7, and which can be manually brought into a position releasing the support 8 stops 3, 3 'and

  which is held in this position by the spring 7.

  A wing of the pawl 5 engages partially on

support 8-

On the lower edge of the opening

  front of formwork 1 of inclined conveyor,

  on the right and on the left, there are

  9, 9 'on which are received the amounts 10, 10' of the swing frame 4, 10, 'and which are fixed movable there. The coupling element

  4 of the swing frame 4, 10, 10 'is connected laterally

  Rally, by traction springs 11, 11t disposed on the side of the casing 1 of the inclined conveyor, and centrally with the hydraulic cylinder 12 hinged to this formwork, which allow a vertical displacement in a circular arc or a pendulum movement of the swing frame 4, 10, 10 '. To receive and set up the adapter 13, of the transport carriage 14 on the harvesting machine 2, the swinging frame 4, 10, 10 'is pulled by the hydraulic jack

  12 far enough in the opening of the formwork 1 of the trans--

  inclined carrier so that the coupling element 4 of the swinging frame 4, 10, 10 'slides on inclined input planes 15, formed on the abutments 3, 3' and inclined planes 16 of ascent, on the supports 8, released by the pawl 5. The ratchet wing d. stop 5, in the form of a bent lever, which penetrates

  here partially in the support $ is pushed outward

  5 in this position, the harvesting machine 2 protrudes on the transport carriage 14, to lift the adapter

  13 and mate it. For this purpose, the formwork of the

  1 is lowered by a hydraulic cylinder 17, placed between the harvesting machine 2 and centrally under the casing 1, to the point that the swinging frame 4, 10, 10 'is placed by its coupling element

  4, under the suspension eyelets 18, 18 'of the adapter

  Then, the formwork I of the inclined conveyor 1 is lifted by the hydraulic cylinder 17, so that the suspension eyelets 18, 18 'engage with the coupling element 4, the adapter 13 is raised on the wheels 19, 19 'of the conveyor carriage 14, and slides, due to the position of the center of gravity of its own weight, on the swinging frame 4, 10, 10', and engages, with a dowel of guidance 20,

in a lower lock 21.

  After this lifting and placing operation, the adapter 13 is lowered into a working position, the hydraulic cylinder 12 being completely removed from the casing 1 of the inclined conveyor. The swinging frame 4, 10, 10 ', with the adapter 13, then tilts forward out of the stops 3, 3', on the hinge points 9, 9 'until the splints 23 , 23 'of connection, connected between the coupling element 4 and the piston 22 of the hydraulic cylinder 12, limit with the oblong holes 24, 24', the tilting operation, made elastic by the traction springs 11, 111 The pawl 5 is pulled by the spring 7 on the support 8 and locks it. Then, the formwork 1 of the inclined conveyor is lowered by the hydraulic jack 17, until the outsoles 25 contact the ground and the pendulum uprights 10, 10 'are in a floating position, little by little vertical mead perpendicular to the ground. The inequalities of ground that would then occur during the harvesting operation will be compensated by a pendulum movement on the hinge points 9, 9 ', assisted by the tension springs 11, 11' stretched in advance, the movements of horizontal rotation being compensated by the oblong holes 24, 24 'of the connecting plates 23, 23'. In this working position, the coupling element 4 absorbs only horizontal forces in the direction

a walk.

  If it is necessary to carry out a transport route with the adapter 13 mounted, the swinging frame 4, 10, 10 'is pulled by the hydraulic cylinder 12, on the front opening of the

  form 1 of the inclined conveyor, and the coupling element

  4 slides on the inclined planes 15, on the abutments 3, 3 ', to a stop point 26, on the pawl 5, which locks the support 8. By the inclined input planes 15, the swinging frame 4, 10, 10 'is brought into a position parallel to the front edge of the trunk 1 of the inclined conveyor, where it can not oscillate, either across or along, and where the same ratios occur as in a rigid mounting. To ensure a central suspension which regularly distributes the load of the adapter on the swing frame 4, 10, 10 ', and to correct a lateral shift of the adapter 13 from its central position which would be possible in the position of if the inclination of the terrain is unfavorable, it is arranged on the coupling element 4, a lug 27, directed vertically downwards, which projects in a centering 28, attached to the formwork 1 of the inclined conveyor . To ensure the introduction of the pin 27 in the centering 28, the opening of the latter is conical, and is transformed into a parallel guide, so that the swing frame 4, 10, 101 always applies centrally , that is to say both during the setting up and dismounting, even during a transport in the field, centrally on the formwork 1 of the inclined conveyor

Claims (4)

  1-device for blocking an adapter, making a pendulum movement on two axes, a harvesting machine, in a specific position, on an inclined conveyor, characterized in that it is arranged on each of the two sides, on the formwork (1) of the inclined conveyor, a stop (3, 3 ') which can be locked or released by a spring-loaded catch (5), comprising   inclined planes (15) of entry, extending tangentially   to the inner rotational circle of the upper coupling element (4), movable in two planes of a sway frame (4, 10, 10 ') and flattened upward inclination planes (16) s' extending,   working position, parallel to the field. 2- Device according to the   1, characterized in that the coupling element (4), movable in two planes, of a swinging frame (4, 10, 10 ') can be moved by means of a hydraulic cylinder (12). centrally mounted on the formwork (1) of the inclined conveyor, sliding on inclined input (15) and upward (16) planes, in a rigid installation position on the abutment (3, 3 ') released. by the spring-loaded locking pawl (5) placed freely on the coupling element (4). 3- Device according to the claim   1, characterized in that the coupling element (4), movable in two planes, of a swinging frame (4, 10, 10o ') can be brought by means of a hydraulic cylinder (12). mounted centrally on the formwork (1) of the inclined conveyor, sliding on inclined input planes (15), in front of the stop (3, 3 ') locked by the catch (5) biased by a spring, in 2 5 7 3 6 1 3   a terminal position, rigid against displacements   placed parallel to the upper edge of the formwork. 4- Device following one   claims 2 and-3, characterized in that the   swing frame (4, 10, 10 ') can be brought into a position which is centrally located on the formwork (1) of the inclined conveyor by means of a lug (27),   vertically downwards from the   plement (4) and which sinks in a centering (28) provided, centrally, on the formwork (1) of the carrier   inclined, conical opening and parallel guiding the the.