CN102605813A

CN102605813A - Perpendicular hoisting working device of slippage loader

Info

Publication number: CN102605813A
Application number: CN2012100875019A
Authority: CN
Inventors: 林庆钻; 陈长春; 黄阳印; 郭涛
Original assignee: Xiamen XGMA Machinery Co Ltd
Current assignee: Xiamen XGMA Machinery Co Ltd
Priority date: 2012-03-29
Filing date: 2012-03-29
Publication date: 2012-07-25
Anticipated expiration: 2032-03-29
Also published as: CN102605813B

Abstract

The invention discloses a perpendicular hoisting working device of a slippage loader, which comprises a frame, a draw bar, a rocker arm, a movable arm, a movable arm cylinder, a quick change frame, a rotating bucket cylinder and a bucket. The frame, the draw bar, the rocker arm and the movable arm are hinged together, and the movable arm cylinder and the bucket cylinder are mounted on the frame, the draw bar, the rocker arm and the movable arm. Reasonable proportion relation of a four-bar mechanism which consists of the draw bar, the rocker arm, the movable arm and the like is adopted, accordingly, when a lower hinge point of the movable arm is lifted to a specified position, the movable arm cylinder continues pushing the movable arm, the horizontal distance from the lower hinge point of the movable arm to the edge of a front tire fluctuates within a range of 37mm assuredly, and the perpendicular hoisting working device has the advantages of long unloading distance, fine stability and high hoisting force and rated loading capacity.

Description

Sliding loader vertical-lift equipment

Technical field

The present invention relates to a kind of loader, particularly relate to a kind of sliding loader vertical-lift equipment.

Background technology

What existing sliding loader vertical-lift equipment mostly adopted is the radial lift equipment, and its swing arm rear end is direct and vehicle frame is hinged, and the boom cylinder two ends are carried out hinged with vehicle frame and swing arm middle part respectively; Thrust through boom cylinder; Making swing arm is the center of circle with the hinge of itself and vehicle frame rear end, is that radius carries out the picture circular arc and promotes with the hinge of swing arm rear end and vehicle frame to the hinge of swing arm and scraper bowl, when scraper bowl rises to the extreme higher position; Because movement locus is circular-arc; Cause Working head device when a high position, to unload distance and diminish, the distance of handling goods is less, is not easy entrucking; When swing arm is flat when stretching, the center of gravity of material is longer from the axial line of front tyre, and complete machine stability is relatively poor;

In view of this; Industry is to above-mentioned defective; Improve, application publication number is that the Chinese invention patent of CN 101956406A discloses the vertical-lift equipment that a kind of new some position is designed, referring to Fig. 1-Fig. 3; Comprise swing arm (1), rocking arm (2), connecting rod (3) and boom cylinder (5); Said rocking arm (2) upper and lower end is articulated in A, B 2 points with vehicle frame (4) upside and swing arm (1) rear end respectively, said connecting rod (3) two ends respectively with and swing arm (1) middle part be articulated in C, D 2 points with vehicle frame (4) upside, said boom cylinder (5) upper and lower end is articulated in E, F 2 points respectively with in the middle part of vehicle frame (4) downside and the swing arm (1) ;Said rocking arm (2) is shorter than connecting rod (3); Two pin joint C of two pin joint A of said rocking arm (2) and B and said connecting rod (3) and D all are positioned at the rear side at rear drive sprocket (9) center of crawler driving whell (6) center or the wheeled glide steering loader of crawler belt glide steering loader in the horizontal direction; Pin joint A and C point are at the upside that is distributed in vehicle frame (5); Pin joint A, C to vehicle frame (4) base distance H 1, H2 all greater than 3/4 of height of chassis above ground H; The E point is arranged on vehicle frame (5) lower end, and distance H 3 is less than 1/4 of height of chassis above ground H to vehicle frame (4) base for the E point, and the E point is positioned at downside before the A point, C point downside afterwards; The B point is positioned at A point back upside, and D point is positioned at A point front upper side, and is positioned at C point upside afterwards, and when boom cylinder (5) when being in contraction state, swing arm (1) is in extreme lower position; Promote swing arm (1) when the B point rotates lifting when boom cylinder (5) piston rod stretches out through pin joint F, pin joint F rotates counterclockwise around pin joint A around pin joint E, pin joint B, and pin joint D clockwise rotates around pin joint C.Adopt the design of above-mentioned some position; The movement locus that makes original sliding loader promote equipment is changed into two-part movement locus (circular arc promotes section M+ vertical-lift section N) by circular-arc movement locus; Increased the unloading distance of loader working head when a high position, but this some position design and since rocking arm 2 be shorter in length than connecting rod 3; D point vertical height is higher than the C point; Therefore when hinged D point during around hinged C point rotation, swing arm 1 promptly stretches out, and its swing arm lower link point O promptly begins away from the propons axle center; Cause the stroke of swing arm its circular arc lifting section M when carrying out vertical-lift long like this; Make the liftoff rise that promotes section from circular arc generally reach 1/2 of total hoisting depth L from L1, under the prerequisite that bear a heavy burden in the sliding loader rear and Working head device (like scraper bowl) carrier is certain, the distance X of the horizontal projection in the front driving wheel 10 propons axle center of preceding guide wheel 7 of its swing arm 1 lower link point O and crawler type sliding loader crawler belt or wheeled sliding loader is long more; Then the stability of complete machine is just poor more, and the numerical value of the maximum bearing capacity that can bear of Working head device also can reduce simultaneously.

Summary of the invention

The object of the present invention is to provide the sliding loader vertical-lift equipment of a kind of vertical-lift degree height, good stability.

For realizing above-mentioned purpose, technical solution of the present invention is:

The present invention is a kind of sliding loader vertical-lift equipment, comprises vehicle frame, pull bar, rocking arm, swing arm, boom cylinder, and described rocking arm, swing arm, pull bar and boom cylinder all are symmetrical set the both sides at vehicle frame, and the length of said rocking arm is greater than pull bar; Described swing arm rear portion becomes Y-shaped, forms first linking arm and second linking arm, and wherein first linking arm is away from vehicle frame, and second linking arm is near vehicle frame; The first linking arm tail end of the upper end of said rocking arm and swing arm is point articulated at B, and the lower end of rocking arm and vehicle frame rear upper end are point articulated at A, and the horizontal projection in pin joint B and back axle axle center distance is greater than the horizontal projection distance in pin joint A and back axle axle center; Said pull bar is positioned at the side of rocking arm near the back axle axle center, and the second linking arm tail end at one of which end and swing arm rear portion is point articulated at D, and the other end and the vehicle frame of pull bar are point articulated at C, and the vertical height of said pin joint D is lower than pin joint C; The cylinder body of said boom cylinder is hinged on the E point of bottom, vehicle frame rear portion, and the rod end of the piston rod of boom cylinder is hinged on the rear end F point in swing arm first linking arm and the second linking arm crosspoint; The distance that described A point and B are ordered is L, and the distance that B point and D are ordered is: 0.94L≤BD≤1.14L, the distance that C point and D are ordered is: 0.876L≤CD≤L, the distance that A point and C are ordered is: 1.286L≤AC≤1.486L.

The point position design of more optimizing is AB=L, BD=1.04L, CD=0.976L, AC=1.386L.

Simultaneously outwards be provided with an extension along pin joint B place, between this extension, be provided with web beam at rocking arm.

After adopting such scheme; Because the quadric chain that pull bar, rocking arm and swing arm constitute among the present invention; Because pin joint D is lower than pin joint C, when its pull bar rotated around pin joint C the time, pull bar can inwardly contract earlier together with swing arm and stretch out simultaneously; Make the movement locus of equipment of the present invention when circular arc promotes a section M and carries out the transition to vertical-lift section N, its circular arc promotes section M liftoff rise and is generally total hoisting depth from L<l<, guarantee that simultaneously swing arm is during vertical-lift section N in, hinge guarantees apart from the horizontal range at front tyre edge under the swing arm 37mmInterior fluctuation, and when rising to the extreme higher position, the unloading distance of unloading material big (specific diameter is big to the unloading distance of lifting); When swing arm is flat when stretching (when hinge is on same horizon on hinge and the swing arm under the swing arm; Scraper bowl is received bucket); The center of gravity of material is little to the distance in the axle center of propons to the center of gravity that promotes the equipment material apart from specific diameter to the front tyre edge; Good stability, and increased lifting force and nominal load capacity.

Below in conjunction with accompanying drawing and specific embodiment the present invention is further described.

Description of drawings

Fig. 1 is a background technology crawler type sliding loader equipment structural representation;

Fig. 2 is the wheeled sliding loader equipment of a background technology structural representation;

Fig. 3 is a background technology equipment motion process track sketch map;

Fig. 4 is an axonometric drawing of the present invention;

Fig. 5 is an elevation of the present invention;

Fig. 6 is the elevation after the present invention removes vehicle frame;

Fig. 7 is that motion process curve of the present invention is got point diagram;

Fig. 8 is a motion process curve table of the present invention;

Fig. 9 is pull bar of the present invention moves to horizontal level from initial position a movement locus sketch map.

The specific embodiment

Like Fig. 4, shown in Figure 5; The present invention is a kind of sliding loader vertical-lift equipment; It comprises vehicle frame 1, pull bar 2, rocking arm 3, swing arm 4, boom cylinder 5, quick-change frame 6, rotary ink tank 7, scraper bowl 8; Described rocking arm 3, swing arm 4, pull bar 2 and boom cylinder 5 all are symmetrical set in the both sides of vehicle frame 1, and the length of rocking arm 3 is greater than pull bar 2.

Like Fig. 4, shown in Figure 6, described swing arm rear portion becomes Y-shaped, forms first linking arm 41 and second linking arm 42, and wherein first linking arm 41 is away from vehicle frame, and second linking arm 42 is near vehicle frame; The tail end of the top of described rocking arm 3 and first linking arm 41 is point articulated at B; the lower end of rocking arm 3 and vehicle frame 1 rear upper end are point articulated at A; and rocking arm 3 outwards is provided with an extension 31 along pin joint B place, between this extension 31, is provided with web beam 32, is used to increase the integral rigidity of swing arm 4; Said pull bar 2 is positioned at the side of rocking arm 3 near back axle axle center 9, and an end of described pull bar 2 and the tail end of second linking arm 42 are point articulated at D, and the other end of pull bar 2 and vehicle frame 1 are point articulated at C, and the vertical height of pin joint D is lower than pin joint C; The cylinder body of described boom cylinder 5 is hinged on the E point of bottom, vehicle frame 1 rear portion; The rod end of the piston rod of boom cylinder 5 is hinged on the rear end F point in first linking arm 41 and second linking arm, 42 crosspoints; The quadric chain that constitutes by pull bar 2, rocking arm 3, swing arm 4 etc. simultaneously, its ratio each other is following:

If the distance that A point and B are ordered is L, the distance that B point and D are ordered is: 0.94L≤BD≤1.14L, the distance that C point and D are ordered is: 0.876L≤CD≤L, the distance that A point and C are ordered is: 1.286L≤AC≤1.486L.

Operating principle of the present invention:

Like Fig. 6, shown in Figure 7, in 1 locking of ground location boom cylinder, rotary ink tank 7 loculus oil-feeds, scraper bowl 8 rotates around the O point, realizes receiving bucket; Then, boom cylinder 5 big chamber oil-feeds promote swing arm 4 and rotate to peak around B point; rocking arm 3 adopts hydraulic leveling around hinge A rotation, and scraper bowl 8 automatic translation property are good; in the lifting process; 4 times hinge O of swing arm move to rise that circular arc promotes section M terrain clearance behind L, and boom cylinder 5 continues lifting swing arms 4, and to begin perpendicular to liter on the ground be 4 times hinge O of swing arm to 4 times hinge O of swing arm in 37mm, fluctuates to the horizontal range at front tyre edge thereafter; Then lock boom cylinder 5, rotary ink tank 7 big chamber oil-feeds, scraper bowl 8 rotates to certain angle around the O point, realizes the discharging function; At last, boom cylinder 5 loculus oil-feeds, swing arm 4 drops to ground around the A point, and rocking arm 3 is around hinge A rotation, and scraper bowl 8 leans on hydraulic leveling to set level automatically, accomplishes the motion process of four operating modes.

Sliding loader Working head device of the present invention is in I, II, III, IV, five operating positions of V, and hinge O hinge O under ground level and the swing arm is as shown in table 1 apart from the front tyre Edge Distance under the swing arm:

Table 1:

?	I	II	III	IV	V
						Hinge is apart from ground level under the swing arm	188mm	1147mm	2315mm	2618mm	3049mm
Hinge is apart from the front tyre Edge Distance under the swing arm	68mm	300mm	311mm	280mm	317mm

As shown in Figure 8, the motion analysis curve of 4 times hinges of swing arm: the H line representes that hinge is apart from the height on ground under the swing arm; The X line representes that hinge is apart from the horizontal range of front-wheel under the swing arm.

When the initial position I of 4 times hinge O of swing arm is that height off the ground is 188mm, its horizontal range apart from the front tyre edge is 68mm, when reaching position II, during following hinge terrain clearance 1147mm, its down hinge be 300mm (maximum) apart from the horizontal range at front tyre edge; When reaching position III, during following hinge terrain clearance 2315mm, its down hinge be 311mm (maximum) apart from the horizontal range at front tyre edge; When reaching position IV, during following hinge terrain clearance 2618mm, its down hinge be 280mm (maximum) apart from the horizontal range at front tyre edge; When reaching position V, when 4 times hinges of swing arm reach the highest 3049mm, its down hinge be 317mm apart from the horizontal range at front tyre edge; As stated; When 4 times hinge O of swing arm when initial position I transits to position II; Its movement locus is in circular arc and promotes section M; From the position II to the position V (under the swing arm the liftoff rise of hinge from), its movement locus is in vertical-lift section N, its circular arc promotes the total hoisting depth L of height L1/ swing arm (being the liftoff ultimate range of hinge O under the swing arm) ≈ 0.376 of section; Referring to Fig. 9, this mainly is because when initial position, the vertical height of the pin joint D of pull bar 2 is lower than pin joint C; When pin joint D turns to horizontal level around pin joint C, during promptly with height such as pin joint C grade, this moment pin joint D with the distance maximum at front axle tyre edge; So just cause swing arm in this motion lifting process; Hinge O inwardly shrinks earlier and puts down apart from being Z under the swing arm, and (promptly earlier near the front axle tyre edge, again away from the front axle tyre edge) again stretches out; Adopt above-mentioned design; Circular arc promote the liftoff rise of section from L1 far below with prior art; In vertical-lift section N, hinge O is controlled in the 37mm apart from the horizontal range position at front tyre edge all the time under the swing arm simultaneously, has so just guaranteed under the prerequisite that bear a heavy burden in the sliding loader rear and Working head device (like scraper bowl) carrier is certain; Hinge O is shorter than the some position design that has sliding loader now apart from the horizontal range at front tyre edge under the swing arm, and its complete machine stability can be good.

The above is merely preferred embodiment of the present invention, so can not limit the scope that the present invention implements with this, the equivalence of promptly doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims

1. sliding loader vertical-lift equipment; It is characterized in that: it comprises vehicle frame, pull bar, rocking arm, swing arm, boom cylinder; Described rocking arm, swing arm, pull bar and boom cylinder all are symmetrical set the both sides at vehicle frame, and the length of said rocking arm is greater than pull bar; Described swing arm rear portion becomes Y-shaped, forms first linking arm and second linking arm, and wherein first linking arm is away from vehicle frame, and second linking arm is near vehicle frame; The first linking arm tail end of the upper end of said rocking arm and swing arm is point articulated at B, and the lower end of rocking arm and vehicle frame rear upper end are point articulated at A, and the horizontal projection in pin joint B and back axle axle center distance is greater than the horizontal projection distance in pin joint A and back axle axle center; Said pull bar is positioned at the side of rocking arm near the back axle axle center, and the second linking arm tail end at one of which end and swing arm rear portion is point articulated at D, and the other end and the vehicle frame of pull bar are point articulated at C, and the vertical height of said pin joint D is lower than pin joint C; The cylinder body of said boom cylinder is hinged on the E point of bottom, vehicle frame rear portion, and the rod end of the piston rod of boom cylinder is hinged on the rear end F point in swing arm first linking arm and the second linking arm crosspoint; The distance that described A point and B are ordered is L, and the distance that B point and D are ordered is: 0.94L≤BD≤1.14L, the distance that C point and D are ordered is: 0.876L≤CD≤L, the distance that A point and C are ordered is: 1.286L≤AC≤1.486L.

2. sliding loader vertical-lift equipment according to claim 1 is characterized in that: described AB=L, BD=1.04L, CD=0.976L, AC=1.386L.

3. sliding loader vertical-lift equipment according to claim 1 is characterized in that: described rocking arm outwards is provided with an extension along pin joint B place.

4. according to the described sliding loader vertical-lift of claim 3 equipment, it is characterized in that: described rocking arm is provided with web beam between the extension.