CN102605813B

CN102605813B - Perpendicular hoisting working device of slippage loader

Info

Publication number: CN102605813B
Application number: CN201210087501.9A
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: 2015-05-13
Anticipated expiration: 2032-03-29
Also published as: CN102605813A

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 radial lift equipment, its swing arm rear end is direct and vehicle frame is hinged, boom cylinder two ends respectively with vehicle frame and swing arm in the middle part of carry out hinged, by the thrust of boom cylinder, make swing arm with the hinge of itself and vehicle frame rear end for the center of circle, the lifting of picture circular arc is carried out to the hinge of swing arm and scraper bowl for radius with the hinge of swing arm rear end and vehicle frame, when scraper bowl rises to extreme higher position, because movement locus is arc-shaped, cause Working head device to unload distance when a high position to diminish, the distance of handling goods is less, be not easy entrucking, when swing arm is flat stretch time, the center of gravity of material is longer from the axial line of front tyre, and complete machine stability is poor,

In view of this, industry is for above-mentioned defect, improve, application publication number is the vertical-lift equipment that the Chinese invention patent of CN 101956406A discloses a kind of some position design newly, see Fig. 1-Fig. 3, comprise swing arm (1), rocking arm (2), connecting rod (3) and boom cylinder (5), on described rocking arm (2), lower end is articulated with A with vehicle frame (4) upside and swing arm (1) rear end respectively, B two point, described connecting rod (3) two ends are articulated with C respectively with swing arm (1) middle part and vehicle frame (4) upside, D two point, on described boom cylinder (5), lower end is articulated with E with vehicle frame (4) downside and swing arm (1) middle part respectively, F two point ,described rocking arm (2) is shorter than connecting rod (3), two pin joint A and B of described rocking arm (2) and two pin joint C and D of described connecting rod (3) are all positioned at the rear side at crawler driving whell (6) center of crawler belt glide steering loader or rear drive sprocket (9) center of wheeled glide steering loader in the horizontal direction, pin joint A and C point is in the upside being distributed in vehicle frame (5), pin joint A, C is to vehicle frame (4) base distance H1, H2 is all greater than 3/4 of height of chassis above ground H, E point is arranged on vehicle frame (5) lower end, E point is less than 1/4 of height of chassis above ground H to vehicle frame (4) base distance H3, and E point is positioned on the downside of before A point, C point rear side, B point is positioned on the upside of after A point, and D point is positioned at A point front upper side, and upside after being positioned at C point, when boom cylinder (5) is in contraction state, swing arm (1) is in extreme lower position, when boom cylinder (5) piston rod protrudes through pin joint F promotion swing arm (1) around B point rotation lifting, pin joint F rotates counterclockwise around pin joint A around pin joint E, pin joint B, and pin joint D rotates clockwise around pin joint C.Above-mentioned some position is adopted to design, the movement locus making original sliding loader promote equipment changes into two-part movement locus (circular arc raising section M+ vertical-lift section N) by arc-shaped movement locus, add the unloading distance of loader working head when a high position, but this some position is designed, connecting rod 3 is shorter in length than due to rocking arm 2, D point vertical height is higher than C point, therefore when hinged D point rotates around hinged C point, namely swing arm 1 stretches out, namely its swing arm lower link point O starts away from propons axle center, cause the stroke of swing arm its circular arc raising section M when carrying out vertical-lift long like this, make generally to reach 1/2 of total hoisting depth L from the liftoff most rise of circular arc raising section from L1, when under the prerequisite that bear a heavy burden in sliding loader rear and Working head device (as scraper bowl) carrier is certain, before its swing arm 1 lower link point O and crawler type slipping loading apparatus crawler belt, the distance X of the horizontal projection in the front driving wheel 10 propons axle center of guide wheel 7 or wheeled slippage loading apparatus is longer, then the stability of complete machine is poorer, 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 that a kind of vertical-lift degree is high, the sliding loader vertical-lift equipment of good stability.

For achieving the above object, technical solution of the present invention is:

The present invention is a kind of sliding loader vertical-lift equipment, and comprise vehicle frame, pull bar, rocking arm, swing arm, boom cylinder, described rocking arm, swing arm, pull bar and boom cylinder are all symmetrical set the both sides at vehicle frame, and the length of described rocking arm is greater than pull bar; Described swing arm rear portion becomes Y-shaped, and form the first linking arm and the second linking arm, wherein the first linking arm is away from vehicle frame, and the second linking arm is near vehicle frame; The upper end of described rocking arm and the first linking arm tail end of swing arm point articulated at B, lower end and the vehicle frame rear upper end of rocking arm are point articulated at A, and the horizontal projection distance in pin joint B and back axle axle center is greater than the horizontal projection distance in pin joint A and back axle axle center; Described pull bar is positioned at the side of rocking arm near back axle axle center, and its one end is point articulated at D with dynamic post-brachial second linking arm tail end, and the other end and the vehicle frame of pull bar are point articulated at C, and the vertical height of described pin joint D is lower than pin joint C; The cylinder body of described 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; Described A point and the distance of B point are the distance of L, B point and D point: the distance of 0.94L≤BD≤1.14L, C point and D point is: the distance of 0.876L≤CD≤L, A point and C point is: 1.286L≤AC≤1.486L.

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

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

After adopting such scheme, due to pull bar in the present invention, the quadric chain that rocking arm and swing arm are formed, simultaneously because pin joint D is lower than pin joint C, when its pull bar rotates when around pin joint C, pull bar first can stretch out to inside contracting together with swing arm again, make the movement locus of equipment of the present invention when circular arc raising section M is transitioned into vertical-lift section N, the most rise that its circular arc raising section M is liftoff is generally the <L< of total hoisting depth from L, in guaranteeing that swing arm is during vertical-lift section N simultaneously, under swing arm, hinge ensures apart from the horizontal range at front tyre edge 37mminterior fluctuation, and when rising to extreme higher position, the unloading distance of unloading materials is comparatively large (larger than the unloading distance of radial lift), when swing arm is flat stretch time (under swing arm on hinge and swing arm hinge in the same horizontal line time, bucket received by scraper bowl), the center of gravity of material is less to the distance in the axle center of propons than the center of gravity of radial lift equipment material to the distance at front tyre edge, good stability, and increase lifting force and nominal load capacity.

Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.

Accompanying drawing explanation

Fig. 1 is background technology crawler type slipping loading apparatus equipment structural representation;

Fig. 2 is background technology wheeled slippage loading apparatus equipment structural representation;

Fig. 3 is background technology equipment motion process track schematic diagram;

Fig. 4 is axonometric drawing of the present invention;

Fig. 5 is 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 gets point diagram;

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

Fig. 9 is that pull bar of the present invention moves to the movement locus schematic diagram of horizontal level from initial position.

Detailed description of the invention

As shown in Figure 4, 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 are all symmetrical set in the both sides of vehicle frame 1, and the length of rocking arm 3 is greater than pull bar 2.

As shown in Fig. 4, Fig. 6, described swing arm rear portion becomes Y-shaped, and form the first linking arm 41 and the second linking arm 42, wherein the first linking arm 41 is away from vehicle frame, and the second linking arm 42 is near vehicle frame; The top of described rocking arm 3 and the tail end of the first linking arm 41 point articulated at B; lower end and vehicle frame 1 rear upper end of rocking arm 3 are point articulated at A; and rocking arm 3 is outwards provided with an extension 31 along pin joint B place, is provided with web beam 32, for increasing the integral rigidity of swing arm 4 between this extension 31; Described pull bar 2 is positioned at the side of rocking arm 3 near back axle axle center 9, one end of described pull bar 2 and the tail end of the second linking arm 42 point articulated at D, the other end and the vehicle frame 1 of pull bar 2 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 the first linking arm 41 and the second linking arm 42 crosspoint, the quadric chain be simultaneously made up of pull bar 2, rocking arm 3, swing arm 4 etc., its ratio is each other as follows:

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

Operating principle of the present invention:

As shown in Figure 6, Figure 7, lock at ground location boom cylinder 1, the oil-feed of rotary ink tank 7 loculus, scraper bowl 8 rotates around O point, realizes receiving bucket; Then, the large chamber oil-feed of boom cylinder 5, promote swing arm 4 to rotate to peak around B point; rocking arm 3 rotates around hinge A, adopt hydraulic leveling, scraper bowl 8 auto-translating is good; in lifting process; swing arm 4 times hinge O move to the most rise of circular arc raising section M terrain clearance after L, boom cylinder 5 continuation lifting swing arm 4, and swing arm 4 times hinge O start to fluctuate in 37mm to the horizontal range at front tyre edge perpendicular to liter on ground and swing arm 4 times hinge O thereafter; Then lock boom cylinder 5, the large chamber oil-feed of rotary ink tank 7, scraper bowl 8 rotates to certain angle around O point, realizes material unloading function; Finally, the oil-feed of boom cylinder 5 loculus, swing arm 4 drops to ground around A point, and rocking arm 3 rotates around hinge A, and scraper bowl 8 is set level automatically by hydraulic leveling, completes the motion process of four operating modes.

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

Table 1:

	I	II	III	IV	V
						Under swing arm, hinge is apart from ground level	188mm	1147mm	2315mm	2618mm	3049mm
Under swing arm, hinge is apart from front tyre Edge Distance	68mm	300mm	311mm	280mm	317mm

As shown in Figure 8, the motion analysis curve of swing arm 4 times hinges: H line represents the height on hinge distance ground under swing arm; X-ray represents the horizontal range of hinge distance front-wheel under swing arm.

Be 188mm when the initial position I of swing arm 4 times hinge O is height off the ground, its horizontal range apart from front tyre edge is 68mm, and when reaching position II, during lower hinge terrain clearance 1147mm, its lower hinge is that 300mm(is maximum apart from the horizontal range at front tyre edge); When reaching position III, during lower hinge terrain clearance 2315mm, its lower hinge is that 311mm(is maximum apart from the horizontal range at front tyre edge); When reaching position IV, during lower hinge terrain clearance 2618mm, its lower hinge is that 280mm(is maximum apart from the horizontal range at front tyre edge); When reaching position V, swing arm 4 times hinges reach the highest 3049mm time, its lower hinge is 317mm apart from the horizontal range at front tyre edge; As mentioned above, when swing arm 4 times hinge O transit to position II from initial position I, its movement locus is in circular arc raising section M, from position II to position V (swing arm the liftoff most rise of hinge from), its movement locus is in vertical-lift section N, the ultimate range that under the total hoisting depth L(of height L1/ swing arm of its circular arc raising section and swing arm, hinge O is liftoff) ≈ 0.376; Referring to Fig. 9, this is mainly due to 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, time namely contour with pin joint C, now the distance at pin joint D and front axle tyre edge is maximum, so just cause swing arm in this movement lifts process, under swing arm, the first inwardly contracting horizontal range of hinge O is Z, then stretches out (namely first near front axle tyre edge, then away from front axle tyre edge); Adopt above-mentioned design, circular arc raising section is liftoff most rise from L1 far below with prior art, simultaneously in vertical-lift section N, under swing arm, hinge O controls in 37mm all the time apart from the horizontal range position at front tyre edge, this assures under the prerequisite that bear a heavy burden in sliding loader rear and Working head device (as scraper bowl) carrier is certain, under swing arm, the horizontal range at hinge O distance front tyre edge is shorter than the some position design of existing sliding loader, and its complete machine stability can be good.

The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process with this, and the equivalence namely done according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.

Claims

1. a 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 are all symmetrical set the both sides at vehicle frame, and the length of described rocking arm is greater than pull bar; Described swing arm rear portion becomes Y-shaped, and form the first linking arm and the second linking arm, wherein the first linking arm is away from vehicle frame, and the second linking arm is near vehicle frame; The upper end of described rocking arm and the first linking arm tail end of swing arm point articulated at B, lower end and the vehicle frame rear upper end of rocking arm are point articulated at A, and the horizontal projection distance in pin joint B and back axle axle center is greater than the horizontal projection distance in pin joint A and back axle axle center; Described pull bar is positioned at the side of rocking arm near back axle axle center, and its one end is point articulated at D with dynamic post-brachial second linking arm tail end, and the other end and the vehicle frame of pull bar 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 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; Described A point and the distance AB of B point are the distance of L, B point and D point: the distance of 0.94L≤BD≤1.14L, C point and D point is: the distance of 0.876L≤CD≤L, A point and C point 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 is outwards provided with an extension along pin joint B place.

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