CN201069900Y

CN201069900Y - Farm machinery lifting and supporting mechanism

Info

Publication number: CN201069900Y
Application number: CNU2007201230716U
Authority: CN
Inventors: 罗家声
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-15
Filing date: 2007-06-15
Publication date: 2008-06-11
Anticipated expiration: 2017-06-15

Abstract

The utility model relates to an elevating and supporting mechanism of agricultural machinery, which comprises a fixing supporting seat, an elevating upper arm and an elevating lower arm, a supporting arm, a parallel elevating and supporting mechanism composed of a pulling arm and a jacking device. The fixing supporting seat is composed of two parallel supporting seat plates, an upper cross rod and a lower cross rod, and a reinforced connecting rod, the elevating upper arm is composed of two parallel upper arms and the reinforced connecting rod, a connecting hole is arranged at the tail end of the elevating upper arm, the elevating lower arm is composed of two lower arms and the connecting rod, and a U-shaped groove is arranged at the front end of the lower arm; the supporting arm is composed of two parallel supporting rods, and two parallel supporting connecting rods and a supporting connecting plate which is fixed and connected with the rear end of the supporting rod; the front parts of the elevating upper arm and the elevating lower arm are movably connected through the connecting rod, and the rear end and the fixing supporting seat are movably connected, the supporting arm is rotationally connected with the lower part of the fixing supporting seat through the supporting connecting plate, the pulling arm is rotationally connected with the rear end of the supporting arm, the bottom part of the jacking device is installed on a lower positioning supporting seat, and the top part of the jacking device is installed in the upper positioning supporting seat of the elevating upper arm. The mechanism has the jacking and supporting functions.

Description

Agricultural machinery lifting and supporting mechanism

Technical field:

The utility model relates to a kind of elevating mechanism, particularly a kind of being used for and supporting lifting and the supporting mechanisms of agricultural machinery such as rice combine, tiller.

Background technology:

At present with four-wheel, three-wheel, crawler belt agricultural machinery as running gear, especially the rice combine of front-mounted operation post, tiller, ubiquity the elevating mechanism underaction, heave amplitude is little, in lifting process, cause shortcomings such as other accessory systems (as transmission system) are influenced, and the elevating mechanism of existing agricultural machinery can not support workbench and road wheel overhead simultaneously, and in maintenance process, it is extremely inconvenient to dismantle and change wheel.

The utility model content:

The technical problems to be solved in the utility model is: providing a kind of can support agricultural working machine platform and road wheel overhead respectively or simultaneously, flexible operation, heave amplitude agricultural machinery lifting and supporting mechanism big, easy to use are to overcome above-mentioned the deficiencies in the prior art part.

The technical scheme that solves the problems of the technologies described above is: a kind of agricultural machinery lifting and supporting mechanism, comprise elevating mechanism and lifting body, described elevating mechanism is parallel lifting and the supporting mechanism that is made of hold-down support, lifting upper arm, lifting underarm, support arm and 2 torque arm; Hold-down support is made of two seat boards that is parallel to each other, last lower transverse connecting rod, reinforcement connecting rod, and positioning support under the lifting body is arranged on the lower transverse connecting rod; The lifting upper arm is made up of two upper arm that are parallel to each other and reinforcement connecting rod, and the outside, two upper arm middle part is equipped with the torque arm extension and fastens, and its tail end has connecting hole, and strengthening has positioning support on the jacking apparatus on the connecting rod; The lifting underarm is made up of two underarms that are parallel to each other and connecting rod, and the front end of underarm has the U-shaped groove; Described support arm by 2 be parallel to each other support bar and 2 frameworks that the support link that is parallel to each other is formed, the support bar rear end is fixedly connected with the pin-and-hole that has the pin-and-hole that is connected with torque arm on support and connection plate, this support connecting plate and be connected with the holder bottom; The expansion link that each torque arm is connected by stiff end, stiff end, the connection pin-and-hole of regulating nut and being positioned at the expansion link top are formed, and the stiff end of torque arm and support and connection plate are rotationally connected;

Lifting upper arm and lifting underarm front portion flexibly connect by connecting rod, its rear section top, middle part other and hold-down support flexibly connect, support arm is rotationally connected by the support and connection plate of rear end and the bottom of hold-down support, on the jacking apparatus that the bottom of jacking apparatus is installed under the jacking apparatus of hold-down support on the positioning support, the top of jacking apparatus is installed in the lifting upper arm in the positioning support.

Described jacking apparatus is that hydraulic pressure is taken blame for others or manual jack;

Further feature of the present utility model is: be fixedly connected with a torque arm extension spring at the middle part of torque arm expansion link, the other end of torque arm extension spring and the frame of agricultural machinery are fixedly linked; Have the support arm extension spring to hang in the inboard of a support bar of support arm and fasten, the support arm extension spring that support arm extension spring one end hangs over support arm is hung and is fixed, and the other end and hold-down support articulate.

Because adopt technique scheme, the agricultural machinery lifting and the supporting mechanism of the utility model have following beneficial effect:

1, lifting is flexible, heave amplitude is big, can not influence other accessory systems in lifting process.The utility model adopts the parallel lifting principle of four limit row and the parallel elevating mechanism that is made of hold-down support, lifting upper arm, lifting underarm, support arm, torque arm; Under the power-assisted effect of hydraulic system, can be with the parallel lift adjustment of agricultural working machine platform (as the harvester operation foreground, plough whole etc.), lifting is flexible, heave amplitude is big, easy to operate, and in lifting process, can not influence normal operation as other accessory systems such as transmission systems.

2, the rise of agricultural working machine platform and the front-wheel of will walking can be supportted overhead simultaneously, easy to maintenance, the efficient height.The utility model design has by support arm and the coefficient supporting construction of torque arm, because the effect of torque arm, the upper and lower arm of support arm and lifting is opposite direction and opens, when promoting the agricultural machinery workbench, machine and walking front-wheel can be supportted overhead, the fast changeable driving wheel, convenient maintenance, the maintenance of machine, the maintenance efficiency height of carrying out at any time, make machine keep good performance simultaneously, the operation work efficiency is also corresponding to be greatly improved.

Below, in conjunction with the accompanying drawings and embodiments the agricultural machinery lifting of the utility model and the technical characterictic of supporting mechanism are further described.

Description of drawings:

Fig. 1: agricultural machinery lifting of the utility model and supporting mechanism structural representation (another torque arm does not mark among the figure);

Fig. 2-1: hold-down support structural perspective;

The O of Fig. 2-2: Fig. 2-1 is to view;

Fig. 3-1: lifting upper arm structure stereogram;

The P of Fig. 3-2: Fig. 3-1 is to view;

Fig. 4-1: lifting underarm structural perspective;

The Q of Fig. 4-2: Fig. 4-1 is to view;

Fig. 5-1: support arm structural perspective;

The I of Fig. 5-2: Fig. 5-1 is to view;

Fig. 6: torque arm structural representation;

Fig. 7-1, Fig. 7-2: the agricultural machinery lifting of the utility model and the hold-down support of supporting mechanism and agricultural machinery frame connection diagram:

Fig. 7-1: torque arm is hung to fasten with the lifting upper arm and is connected; Fig. 7-2: torque arm is hung to fasten with the lifting upper arm and is not connected;

Fig. 8: agricultural machinery lifting of the utility model and supporting mechanism working state schematic representation.

Among the figure:

The 1-hold-down support, 11-props up seat board, and 12, the upper and lower tranverse connecting rod of 14-, 13-strengthens connecting rod, positioning support under the 15-jacking apparatus; 2-lifting upper arm, the 21-upper arm, 22-strengthens connecting rod, positioning support on the 23-jacking apparatus, the 24-torque arm is hung and is fastened; 3-lifting underarm, 31-underarm, 32-connecting rod, 33-U connected in star; The 4-support arm, 41, the 47-pin-and-hole, the extension spring of 42-support arm is hung and is fastened, 43-support and connection plate, 44-support bar, 45, the 46-support link; The 5-torque arm, 51-connects pin-and-hole, the 52-expansion link, 53-regulates nut, 54-stiff end; 6-hydraulic pressure is taken blame for others, 7-connecting rod, the extension spring of 8-support arm, 9-bearing pin screw, 10-torque arm extension spring, A-agricultural machinery frame, B-operation foreground, C-driving wheel.

Embodiment:

A kind of agricultural machinery lifting and supporting mechanism comprise the parallel lifting that is made of hold-down support 1, lifting upper arm 2, lifting

underarm

3,4,2 torque arm 5 of support arm and supporting mechanism and hydraulic pressure 6 (referring to the Fig. 1) that take blame for others;

Hold-down support 1 is by two seat boards 11 that is parallel to each other, and upper and lower tranverse connecting

rod

12,14 is strengthened connecting rod 13 and constituted, and positioning support 15 under the jacking apparatus (referring to Fig. 2-1, Fig. 2-2) is arranged on the lower transverse connecting rod 14;

Lifting upper arm 2 is made up of two upper arm that are parallel to each other 21 and reinforcement connecting rod 22, the outside, two upper arm middle part is equipped with the torque arm extension and fastens 24, its front end has and is used for the connecting hole that is connected with the agricultural working machine platform, strengthens on the connecting rod 22 positioning support 23 on the jacking apparatus (referring to Fig. 3-1, Fig. 3-2) being arranged;

Lifting underarm 3 is made up of two underarms that are parallel to each other 31 and connecting rod 32, and the front end of underarm 31 has and is used for the U-shaped groove 33 (referring to Fig. 4-1, Fig. 4-2) that is connected with the agricultural working machine platform;

Support arm 4 by 2 be parallel to each other support bar 44 and the framework formed of the

support link

45,46 that is parallel to each other, support bar 44 rear ends are fixedly connected with and have on support and connection plate 43, this support connecting plate 43 pin-and-hole 41 that is connected with torque arm and the pin-and-hole 47 (referring to Fig. 5-1, Fig. 5-2) that is connected bottom holder;

Torque arm 5 comprises stiff end 54, expansion link 52, the connection pin-and-hole 51 of regulating nut 53 and being positioned at expansion link 52 tops, is connected the length (referring to Fig. 6) of rotation adjusting nut 53 adjustable and retractable bars 52 by regulating nut 53 between stiff end 54 and the expansion link 52;

Lifting upper arm 2 is anterior by connecting rod 7 flexible connections with lifting underarm 3, its rear section is not and the top of hold-down support 1, the middle part flexibly connects, support arm 4 is rotationally connected with torque arm 5 by the pin-and-hole 41 of rear end support and connection plate 43, flexibly connect by the bottom of pin-and-hole 47 with hold-down support 1, take blame for others 6 bottom of hydraulic pressure is installed under the jacking apparatus of hold-down support 1 on the positioning support 15, its plunger tip is installed on the jacking apparatus of lifting upper arm 2 in the positioning support 23, the inboard of one support bar 44 has support arm extension spring extension to fasten 42, support arm extension spring 8 one ends hang over the support arm extension spring extension of support arm 4 and fasten on 42, the other end and hold-down support 1 articulate, one end of torque arm extension spring 10 is fixed on the middle part of expansion link 52, the frame A of the other end and agricultural machinery be fixedly linked (referring to Fig. 1).

It more than is one of preferred forms of the present utility model.

As a kind of conversion of the utility model embodiment, described hydraulic pressure 6 jacking apparatus that also can change other into of taking blame for others, as manual jack etc., take blame for others 6 placement location of its placement location and hydraulic pressure is identical.

A kind of effect that sockets the location, torque arm and support arm can not arbitrarily be swung is just played in support arm extension spring in the utility model and torque arm extension spring, therefore, another conversion as the utility model embodiment, middle part at torque arm 5 expansion links 52 also can not be connected with torque arm extension spring 10, between support arm 4 and holder 2, can not have the support arm extension spring 8 of flexible connection yet, and adopt other simple modes of rope that support arm 4 and lifting upper arm 2 are flexibly connected.

Another conversion as the utility model embodiment, on the support and connection plate 41 of support arm 4, also can not be connected with torque arm 5, also can prop up lifting upper arm 2 and lifting underarm 3 separately, will be raised the thing lifting with lifting upper arm 2 is connected with lifting underarm 3 front ends.

The course of work:

Agricultural machinery lifting of the utility model and supporting mechanism are in the course of the work, hold-down support 1 is hinged firmly with special bolt with agricultural machinery frame A, lifting upper arm 2, the front end of lifting underarm 3 links with two poles (or fulcrum) of operation foreground B are movable respectively, torque arm extension spring 10 1 ends are connected with frame A, when needs while lifting agricultural machinery working foreground B and driving wheel C, place the torque arm extension of lifting upper arm to fasten (referring to Fig. 7-1) on 24 by connecting pin-and-hole 51 torque arm 5, the primer fluid pressing system, take blame for others 6 plunger tip of hydraulic pressure promotes upwards elevate a turnable ladder of lifting upper arm 2, lifting upper arm 2 drives lifting underarm 3, because the effect of torque arm 5, in support arm 4 and the lifting, underarm is opposite direction and opens, thereby in elevate a turnable ladder operation foreground B, driving wheel C is supportted overhead, can be light, change the height (referring to Fig. 8) of driving wheel C and adjusting operation foreground B fast, unloading lower arm 5 and the torque arm of lifting upper arm hangs and fastens be connected (referring to Fig. 7-2) of 24, the primer fluid pressing system, can prop up lifting upper arm and lifting underarm separately, the operation foreground that will be connected with lifting underarm 3 front ends with lifting upper arm 2 or other are raised the thing lifting.

Agricultural machinery lifting of the utility model and supporting mechanism are under off position, operation by hydraulic system, workbench is resetted rapidly, the effect of support arm extension spring and torque arm extension spring is the positioning action that helps support arm and torque arm, makes support arm and torque arm in work or not nonvoluntary swing under the duty.

Claims

1. agricultural machinery lifting and supporting mechanism, comprise elevating mechanism and jacking apparatus, it is characterized in that: described elevating mechanism is parallel lifting and the supporting mechanism that is made of hold-down support (1), lifting upper arm (2), lifting underarm (3), support arm (4) and 2 torque arm (5); Described hold-down support (1) is made of two seat board (11) that is parallel to each other, upper and lower tranverse connecting rod (12,14), reinforcement connecting rods (13), and positioning support under the jacking apparatus (15) is arranged on the lower transverse connecting rod (14); Described lifting upper arm (2) is made up of two upper arm that are parallel to each other (21) and reinforcement connecting rod (22), and the outside, two upper arm middle part is equipped with the torque arm extension and fastens (24), and its tail end has connecting hole, and strengthening has positioning support on the jacking apparatus (23) on the connecting rod (22); Described lifting underarm (3) is made up of two underarms that are parallel to each other (31) and connecting rod (32), and the front end of underarm (31) has U-shaped groove (33); Described support arm (4) by 2 be parallel to each other support bar (44) and the support link (45) that is parallel to each other, framework that (46) are formed, support bar (44) rear end is fixedly connected with and has on support and connection plate (43), this support connecting plate (43) pin-and-hole (41) that is connected with torque arm and the pin-and-hole (47) that is connected with the holder bottom; Torque arm (5) comprises stiff end (54), expansion link (52), adjusting nut (53) and the connection pin-and-hole (51) that is positioned at expansion link (52) top, is connected by regulating nut (53) between stiff end (54) and the expansion link (52), the stiff end (54) of torque arm (5) and support and connection plate (43) are rotationally connected;

Lifting upper arm (2) flexibly connects by connecting rod (7) with lifting underarm (3) is anterior, its rear section top, middle part other and hold-down support (1) flexibly connect, the support and connection plate (43) of support arm (4) by the rear end is rotationally connected with the bottom of hold-down support (1), and the bottom of jacking apparatus is installed on the jacking apparatus that positioning support (15) under the jacking apparatus of hold-down support (1) is gone up, the top of jacking apparatus is installed in lifting upper arm (2) in the positioning support (23).

2. agricultural machinery lifting according to claim 1 and supporting mechanism, it is characterized in that: described jacking apparatus is that hydraulic pressure is taken blame for others (6), and the bottom that this hydraulic pressure is taken blame for others is installed on the jacking apparatus that positioning support (15) is gone up under the jacking apparatus of hold-down support (1), hydraulic pressure is taken blame for others plunger tip is installed in lifting upper arm (2) in the positioning support (23).

3. agricultural machinery lifting according to claim 1 and supporting mechanism, it is characterized in that: described jacking apparatus is manual jack, and the bottom of this manual jack is installed in that positioning support (15) under the jacking apparatus of hold-down support (1) is gone up, manually the top of jack is installed on the jacking apparatus of lifting upper arm (2) in the positioning support (23).

4. according to claim 1,2 or 3 described agricultural machinery lifting and supporting mechanisms, it is characterized in that: be fixedly connected with a torque arm extension spring (10) at the middle part of torque arm (5) expansion link (52), the other end of torque arm extension spring (10) and the frame of agricultural machinery are fixedly linked; Have the support arm extension spring to hang in the inboard of the support bar (44) of support arm (4) and fasten (42), the support arm extension spring that support arm extension spring (8) one ends hang over support arm (4) is hung and is fastened on (42), and the other end and hold-down support (1) articulate.