CN105016252B - Combination wishbone truck - Google Patents

Abstract

Yoke carrier is combined, is mainly made up of body portion, lifting arm support part, combination yoke part.The lifting mechanism being made up of principal arm, swing arm is installed on vehicle body.Combination yoke part is made up of yoke, yoke group, yoke lowering or hoisting gear, yoke propulsion plant, hanger, control system.No matter object whether there is pallet fork insertion space below, dress can be pitched and carried.Every yoke has independent lowering or hoisting gear and propulsion plant.Wide chain is imported into smooth road, and push-and-pull yoke is retreated.One yoke group has two yokes.Two yoke groups are installed on one chassis.During fork loading thing, a yoke front end wedge mouth of each yoke group, which first injects to be handled upside down a little gap of object lower edge, upper lift and pry open, expands gap.Another yoke injects the gap expanded at once.Two yokes alternately lift that goods is motionless, declines, advance, rising, be inserted through goods it is following after, you can carry.During unloading, two yokes are alternately lifted goods, decline, retreated, until goods puts off stowed location.

Description

Combination wishbone truck

technical field

The invention belongs to the field of transport vehicles, in particular to a combined yoke transport vehicle.

Background technique

The loading and unloading of existing bagged object and box class object and packing, bundling class object, some carry with forklift, but three conditions will be needed to just go with forklift: one, there is space for fork insertion below the object. 2. The handling site should meet the necessary space for the forklift to enter, exit and turn around. 3. A special "grid mat" should be placed under the bags or boxes, so that the forklift fork can be inserted into the specific space of the "grid mat". "Lattice pads" should also be frequently placed, removed, and stacked in the warehouse. However, in the vast rural areas and cities, the vast majority is still mainly manual handling. Bags, such as grain bags, seed bags, melon and fruit bags, fertilizer bags, cement bags, various raw material bags, mineral bags, etc. Box objects, such as cartons, wooden boxes, plastic boxes, bamboo frames, etc. Due to the limited space, the purchase and marketing stations in rural areas and the sales, storage stations and warehouses in cities are often densely stacked. The aisles between stacked goods are often narrow. Do not put grid pads under the stacked goods. This has just caused such a situation: First, the forklift cannot fork-load and transfer goods in a narrow aisle. The 2nd, forklift also can't directly fork-load bagged goods and box body objects, packing, and bundling objects that are not inserted into the fork space below. For a long time, the handling and loading and unloading of these objects have always been carried out by workers' heavy physical labor, which is very hard, takes a long time, and the work efficiency is also very low.

Contents of the invention

The object of the present invention is to provide a kind of combined fork-arm truck that can fork-load objects regardless of whether there is a fork insertion space below, and can work in a narrow space.

The present invention is achieved in that the combination yoke carrier truck mainly consists of a body part, a lifting arm frame part and a combination yoke part. The body part is composed of vehicle frame, armrest, operation panel, chassis and brace. The lifting boom part is composed of main arm, boom, cross frame, cross frame seat, main arm oil cylinder, boom oil cylinder and cross frame oil cylinder. The fixed connecting section of the last stage of the main arm is hinged with the rear end of the boom, and the front end of the boom is hinged with the cross frame seat. The combined yoke part is composed of a yoke, a yoke group, a yoke lifting device, a yoke propulsion device and a control system. The yoke lifting device is composed of a hanger, a hanging block, a vertical slider, a lifting cylinder, and a vertical slide. The yoke propulsion device is made up of smooth way, guiding slideway, smooth block, motor, sprocket wheel, wide chain. The hanger is installed on the horizontal frame. The vertical slide block is fixed with the smooth path and the guide slideway, and the vertical slide block and the smooth path are perpendicular to each other. The vertical slide block is installed in the vertical slideway on the hanging block. The smooth block is connected with the yoke as a whole and is all installed in the smooth path. Chain wheel, motor are installed on the splint fixed on the vertical slider. One end of the wide chain is meshed and fixed on a tooth of the sprocket, and the other end is connected with a smooth block. A yoke set has two yokes. Two yoke groups are installed on a combined yoke truck. When fork-loading goods with no fork insertion space below, move the vehicle body and turn the lifting arm frame. Each yoke arm group first inserts a wedge at the front end of the yoke arm into the gap between the goods to be transported and the object below. Lift the arm a little, pry it open to expand some gaps, the front end of the other fork arm is inserted into the pried up gap under the cargo immediately, alternately pry up and insert, the front end of the entire fork arm is inserted under the cargo, and then two The yoke rises alternately to raise the goods and does not move, descends, and advances to the set distance until it penetrates the bottom of the goods, and then the goods can be lifted and carried. When unloading, the goods are lifted to the top of the placement position, and the two yokes of each yoke group alternately rise to lift the goods, descend, and retreat until they all exit the bottom of the goods, and the goods are placed in the placement area.

A main arm oil cylinder is installed between the main arm and the vehicle frame, a boom oil cylinder is installed between the main arm and the boom, and a cross frame oil cylinder is installed between the boom and the cross frame seat.

A hinge seat is installed on the vehicle frame. The rear end of the main arm is hinged on the hinge seat on the vehicle frame. The main boom is a telescopic boom with the same structure as the truck crane. The front end of the last segment of the main arm is connected and fixed with a connecting segment. The rear end of the boom is hinged at the end of the connecting section. The front end of the boom is hinged to the cross frame seat. One end of the main arm oil cylinder is hinged on the main arm, and the other end is hinged on the hinge seat on the vehicle frame. One end of the boom oil cylinder is hinged on the connecting section, and the other end is hinged on the boom. One end of the horizontal frame oil cylinder is hinged on the boom, and the other end is hinged on the horizontal frame seat. The horizontal frame seat is integrated with the middle of the horizontal frame. The horizontal frame is a rectangular frame. The hanger of the combined yoke part is hung on the horizontal frame, one at each end, and can be moved left and right by the control of the steel wire rope or the hydraulic cylinder, and the distance between the two hangers can be adjusted. Handrails are installed at the rear of the vehicle frame. An operation panel is installed on the horizontal frame of the armrest. A chassis is installed at the rear of the vehicle frame. The battery, hydraulic station, control valve and other devices are installed in the chassis. The power part has two ways of battery power supply and small internal combustion engine power supply.

The support bracket is installed on the bottom of the vehicle frame and is a telescopic structure.

Each yoke has a set of independent yoke lifting device and yoke propulsion device.

The structure of the yoke lifting device of the combined yoke truck is: the upper end of the hanging block is fixedly connected with the lower end of the hanger. Vertical slides are set in the vertical direction on the hanging block. The vertical slider is installed in the vertical slideway. The vertical slide block is fixed with the smooth path and the guide slideway, and the vertical slide block and the smooth path are perpendicular to each other. The upper end of the hanger is fixed with a bracket. One end of the lifting oil cylinder is fixed on the bracket on the hanger, and the other end is connected with the vertical slider. A splint and a guide slideway are fixed on the back of the vertical slider. The guide slideway is connected with the smoothway as a whole. The sprocket is installed in the middle of the two splints. The motor is installed on the outer panel of the splint to drive the sprocket to rotate. Smooth blocks are installed in the smooth channel. The smooth block is integrated with the wishbone rear end and is all installed in the smooth track. The expansion and contraction of the piston rod of the lifting cylinder drives the smooth road, the guide slide, the smooth block, the yoke, the motor, and the sprocket to descend and rise together.

The structure of the yoke propelling device of the combination yoke truck is: the wide chain is respectively increased a section of roller sleeve outside the chain plate on both sides of the existing roller chain. The original sleeve in the middle remains unchanged, called the middle sleeve, and the section of sleeve added on both sides is called the side sleeve. The sprocket drives the middle sleeve.

The guide slideway is a device used to guide the wide chain under the sprocket from the arc-shaped slideway into the straight-line smoothway. According to the width of the wide chain, the guide slideway and the smooth way are provided with two smooth side grooves which limit the movement of the side sleeves on both sides of the wide chain, so that the circular motion of the wide chain becomes linear motion. The chain plate and the outer circumference of the middle sleeve have enough space and are in a natural state.

A block is arranged on the smooth block at the rear end of the yoke to block the goods so that the goods do not enter the smooth block. The lower edge of the smooth block is embedded in the corresponding notch of the smooth road, and is connected with one end of the wide chain. The positive and negative rotation of the sprocket drives the wide chain to reciprocate in the guide slideway and the smoothway, which can not only push the smooth block forward, but also pull the smooth block backward.

The chain plate is to thicken the chain plate of the general chain pulling transmission, so that it has sufficient strength when driving the transmission.

One end of the wide chain is engaged and fixed on one tooth of the sprocket so that it will not fall off. This tooth point is called the hanging chain point. When the sprocket drives the wide chain to push the smooth block, the chain hanging point will stop immediately below the sprocket with the rotation of the sprocket. This point is called "dead point". When the sprocket reverses to drive the wide chain to pull the smooth block, the hanging point is reversed to the side of the "dead point" directly below the sprocket, just enough to allow the horizontal wide chain that pulls the smooth block to not interfere with the horizontal wide chain The position is the stop, and this point is called the "starting point". On the sprocket, the length of the wide chain between the "start point" and the "dead point" is the maximum stroke that the wide chain can push or pull the smooth block forward or backward. The size of this stroke is determined by the diameter of the sprocket. The diameter of the general sprocket is between 25 and 45 cm.

Two vertical slides are arranged side by side on a hanging block, and two vertical slides are installed side by side at intervals. Two smooth paths are installed side by side at the lower ends of the two vertical slide blocks. A smooth block and a yoke are respectively installed in each smooth path. This is a wishbone set. The front end of the wishbone is wedge-shaped. A camera is installed on the fork arm.

The working principle of the combined yoke truck: When loading an object with no fork insertion space below, move the body and turn the lifting arm. Insert each yoke front end wedge in the two yoke groups into the gap between the carried object and the lower object earlier. Lift the yoke up a little, and pry it open to expand some gaps. The front end of the other fork arm is immediately inserted into the pried-up gap under the object. Alternately pry up and insert, and the front end of the entire fork arm is inserted under the object. Then one fork arm rises to lift the object and does not move, and the other fork arm descends, advances to the set distance, and then rises to lift the object and does not move. The previous fork arm descends, advances, and rises again, so that the object is alternately lifted and alternately advanced until it penetrates the bottom of the object, and the object can be lifted and carried.

When unloading, the fork lifts the object and stretches out the slideway, and lifts the object to an appropriate height above the placement position. Press the automatic control key, the two yokes of each yoke group alternately lift the object, descend, and retreat until they exit under the object and the object falls on the placement position.

The lifting, advancing and retreating of the yoke are completed by the control system control circuit and oil cylinder. The control of the body part and the lifting arm frame part is manual control, and the control of the combined wishbone part is a control mode combining manual control and automatic control.

The invention is suitable for fork-loading not very heavy box objects. Cartons, wooden boxes, plastic boxes, woven boxes, etc., the upper and lower edges of box-like objects are not sharp angles, and all have more or less rounded corners. The wedge at the front end of the wishbone can be inserted into a 0.5 mm wide narrow slit, and as long as it is inserted a little, it will be inserted deeper for the second time. Bagged objects are better fork-packed, because the middle of the bag is the one that bulges up when the bagged object is full, and there are shrinking slopes on both sides of the bag. After the bags are stacked, there is no gap between every two bags. But the surrounding space is larger. The fork arm is first lifted up from the depth of the slope, and the space between the two bags can be gradually opened. The prongs are inserted alternately with no friction against the bag surface. Fork-loading bagged objects, according to the situation, a fork-loading ranges from four to seven layers.

The beneficial effects of the present invention are: 1. The body of the combined yoke truck is short and the steering is flexible. It can fork load goods in narrow areas where forklifts cannot drive in. It is just suitable for the warehouse operation of various sales stations in cities and vast rural areas. 2. It can not only fork-load objects with fork insertion space below, but also fork-load objects without fork insertion space below, such as boxes, bales, and bags. Nowadays, in the small and scattered warehouses in the society, there are a lot of boxes and bagged objects stacked. These goods are stacked layer by layer, and forklifts cannot be forklifted at all. Especially getting on and off the car, the vast majority is manual handling. The labor intensity is very high, the workers are very hard, and the efficiency is also very low. The invention solves the problem that the above-mentioned stacked goods cannot be loaded by mechanical forks, reduces the labor intensity of workers, and improves work efficiency.

Description of drawings

Fig. 1 is an overall structural diagram of a combined yoke carrier.

Fig. 2 is the connection diagram of the wishbone structure and the smooth block.

Fig. 3 is a wide chain structure diagram.

Fig. 4 is a structural diagram of the yoke lifting device and the yoke propulsion device.

Fig. 5 is an explanatory diagram of the working principle.

Fig. 6 is an explanatory diagram of the working principle.

Fig. 7 is an explanatory diagram of the working principle.

Fig. 8 is a situation diagram of fork loading goods.

Fig. 9 is a situation diagram of fork-lifting goods and recovering them on the vehicle frame.

The high-pressure oil pipes of each oil cylinder are not shown in the accompanying drawings.

In the drawings: chassis 1, shaft pin 2, main arm cylinder 3, operation panel 4, handrail 5, main arm 6, hinge seat 7, connecting section 8, boom cylinder 9, boom 10, hanger 11, horizontal frame Seat 12, horizontal frame cylinder 13, bracket 14, lifting cylinder 15, vertical slider 16, motor 17, wide chain 18, smooth block 19, block 20, smooth way 21, yoke 22, sprocket 23, horizontal frame 24 , hanging block 25, splint 26, brace 27, vehicle frame 28, side sleeve 29, middle sleeve 30, chain plate 31, guide slideway 32, hanging chain point 33, goods 34.

detailed description

In conjunction with Fig. 1, Fig. 3, Fig. 4 describe the structure of each part of the combined yoke carrier.

In Fig. 1, it is the overall structure diagram of combined yoke truck. A hinge seat 7 is installed on the vehicle frame 28 . The lower end of the main arm 6 is hinged on the hinge seat 7 with the pivot pin 2 . The main boom 6 is a telescopic boom with the same structure as the truck crane. The front end of the last stage arm of the main arm 6 is connected and fixed with a connecting section 8 . The rear end of boom 10 is hinged at the end of connecting section 8 with pivot pin 2 . The front end of the boom 10 is hinged to the cross frame seat 12 . The horizontal frame seat 12 is integrated with the horizontal frame 24. One end of main arm oil cylinder 3 is hinged on the hinge seat 7 on the vehicle frame 28, and the other end is hinged on the main arm. One end of the boom cylinder 9 is hinged on the connecting section 8, and the other end is hinged on the boom 10. One end of the horizontal frame oil cylinder 13 is hinged on the boom, and the other end is hinged on the horizontal frame seat 12 to adjust the angle of the combined yoke part. The elongation and shortening of the main arm, in conjunction with the action of the main arm cylinder and the boom cylinder, make the combined yoke part rise and fall, and make the combined yoke part advance and retreat appropriately.

Vehicle frame 28 rear sides are equipped with handrail 5. An operation panel 4 is installed on the horizontal frame of the handrail 5 . The forward, backward, and steering of the vehicle body are operated by the operator's hand. Cabinet 1 is installed in the rear on the vehicle frame, and power part and hydraulic station, hydraulic control valve group and control circuit etc. are arranged in the cabinet. The power part has two ways of battery power supply and small internal combustion engine power supply. There are two ways to drive the tires: electric drive and manual cart drive. Hanger 11 is installed on the two ends of horizontal frame 24. Hanger 11 can move left and right under the control of steel wire rope or hydraulic cylinder, adjusts the distance between two yoke groups, does not draw steel wire rope and this hydraulic cylinder among Fig. 1.

The upper end of the hanging block 25 is fixed on the lower end of the hanger 11 . The vertical slide block 16 is installed in the vertical slideway provided on the hanging block 25 . The vertical slide block 16 is fixed with the smooth track 21 and the guide slide track 32, and the vertical slide block 16 and the smooth track 21 are perpendicular to each other. A support 14 is fixed to the upper end of the side of the hanger 11 . One end of the lifting cylinder 15 is fixed on the support on the hanger 11 side, and the other end is connected with the vertical slider. The smooth block 19 is connected as a whole with the yoke 22 rear end, and is all installed in the smooth path 21. A splint 26 and a guide slideway 32 are connected and fixed on the vertical slider 16 and the rear end of the smoothway 21 . See Figure 4 at the same time, and compare the labels. Sprocket 23 is installed in the middle of two clamping plates 26 . Motor 17 is installed on clamping plate 26 outsides, in order to drive sprocket wheel 23 to rotate. Wide chain 18 hangs on sprocket 23 . Motor with reduction gear.

In Fig. 2, it is the connection diagram of the fork arm structure and the smooth block. The front end of the yoke 22 is wedge-shaped. Fork arm 22 bottoms are inserts, embed into smooth way. The two sides of the inlay block are not stuck in the draw-in grooves on both sides of the smooth path, and the lower side of the inlay block is placed in the smooth path. Block 20 is arranged above the yoke 22 rear end, does not enter on the smooth block 19 in order to block goods. Smooth block 19 bottoms have the slide block that cooperates with smooth road, and smooth block can only move back and forth on smooth road, can not move up and down, left and right.

The structure of a yoke group is: two vertical slideways are set side by side on a hanging block 25, and two vertical slide blocks 16 are installed side by side at intervals. Two vertical slide blocks 16 lower ends are installed side by side two smooth ways 21, respectively install a smooth block 19 and a yoke 22 in every smooth way 21. Two yoke groups are installed on a combination yoke truck.

Bracket 27 is installed in vehicle frame 28 below, when loading and carrying goods by fork, plays the effect of supporting balance. The bracket 27 is a stretchable structure. When not in use at ordinary times, support bracket 27 retracts vehicle frame 28 below.

In Fig. 3, it is a wide chain structure diagram. On the basis of the existing chain, on the outer pivot pin 2 of the two chain plates 31 of the wide chain 18, a section of side sleeve 29 is respectively increased. Side sleeve 29 wears on the axle pin 2 equally. The end of the shaft pin is processed by the original general chain method to fix the side sleeve. That section of sleeve in the middle of the two chain plates 31 is the middle sleeve 30 . The sprocket 23 is drivingly engaged with the middle sleeve 30 . What is used for guiding, as shown in Fig. 4, what is introduced in the guide slideway 32 and the smoothway 21 is the side sleeve 29. The middle sleeve 30 and the outer periphery of the chain plate 31 leave enough space and are in a natural state. Chain plate 31 will be thickened than the chain plate of existing chain, makes it have enough intensity in promoting transmission.

In Fig. 4, it is a structure diagram of the yoke lifting device and the yoke propulsion device. For the convenience of observation, the motor 17 and clamping plate 26 outside the sprocket wheel have been removed among Fig. 4 .

The yoke propulsion device is made up of smooth way, guiding slideway, smooth block, motor, sprocket wheel, wide chain. The guide slideway 32 is connected and fixed with the vertical slider 16 and the smoothway 21. The guide slideway 32 is connected with the smoothway 21 . Sprocket 23 is installed in the middle of two clamping plates 26 . Wide chain 18 hangs on sprocket 23 . The wide chain 18 below the sprocket wheel has been introduced in the guide slideway, and has entered the smoothway, and is connected together with the smooth block. The working principle of the sprocket drive wide chain push-pull smooth block is: one end of the wide chain is engaged and hung on a tooth of the sprocket, and is fixed on the end of the wide chain, so that it will not fall off on the tooth. This tooth point is called hanging chain point 33. The chain hanging point 33 is just on the side below the sprocket wheel, just enough to allow the wide chain to pass into the smooth road without interfering with each other. The position at this moment of hanging chain point is called "starting point". The sprocket wheel rotates counterclockwise, and then the side sleeve on the wide chain can only advance into the smoothway along the guideway 33 under the restriction of the guideway 33, and promotes the smooth block to move to the right. When the hanging chain point turns to just below the sprocket wheel, the sprocket wheel stops rotating. At this time, the right row of the smooth block is in place. The position at this moment of hanging chain point is called " dead point ". When the sprocket rotates clockwise, the wide chain moves to the left from the smooth track and hangs on the sprocket. The wide chain pulls the slider to the left. When the hanging chain point turns to the position in Fig. 4, that is, the "starting point" position, the smoothing block moves to the left and puts it in place. The length of the wide chain between the "start" and "dead" on the sprocket is the stroke of the smooth block. This travel is slightly less than the length of the wide chain to make one revolution around the sprocket. The stroke of the yoke is generally relatively short, the stroke of the yoke is within one meter, and the diameter of the sprocket is generally within 25 to 45 centimeters.

The guide slideway changes the arc movement of the wide chain into a straight line movement in the smoothway, which can not only push the smooth block and the yoke forward, but also pull the smooth block and the yoke backward.

The yoke lifting device is composed of a hanger, a hanging block, a vertical slider, a lifting cylinder, and a vertical slide. Offer vertical slideway on the hanging block 25, vertical slide block 16 is installed in the vertical slideway. The upper end of the hanging block is fixedly connected with a hanger 11, and the upper end of the hanger 11 is fixed with a support 14. The upper end of the lifting oil cylinder 15 is connected on the support 14, and the lower end of the piston rod of the lifting oil cylinder is connected with the upper end of the vertical slider. The rise and fall of the lift cylinder 15 piston rods drive the rise and fall of the guide slideway and smooth way, smooth block, yoke.

Among Fig. 5, Fig. 6, Fig. 7, it is the explanatory diagram of working principle. The working principle and the process of lifting the object by the yoke group are described as an example with two yoke arms of a yoke group in Fig. 5, Fig. 6 and Fig. 7 . Fig. 5, Fig. 6, and Fig. 7 only draw the principle explanatory diagram of the alternate insertion of the fork arm under the object, and do not draw the relevant connecting parts.

The K-K line is the starting line of the action of inserting the two forks into the bottom of the object. For the convenience of description, here the yokes are numbered from bottom to top, the following is No. 1 yoke, and the top is No. 2 yoke.

Among Fig. 5, No. 1 yoke does not move. The No. 2 fork arm moves forward and has been inserted into a small gap under the object. The fork arm is lifted up properly to pry open and expand the gap, and keep it still. Among Fig. 6, No. 2 yokes do not move. The No. 1 fork arm advances immediately, inserts in the enlarged gap, and lifts up to further enlarge the gap. Among Fig. 7, No. 1 yoke does not move. Fork arm No. 2 moves forward. The front part of the wishbone is fully inserted into the gap, and raised to a set height, and remains still. Repeat the above-mentioned process of Fig. 5, Fig. 6, Fig. 7 below. In Fig. 5, the No. 2 fork lifts the object and does not move. The No. 1 fork arm descends to set the height. In Fig. 6, the No. 1 yoke advances, rises to the set height, is equal to the No. 2 yoke, and lifts the object still. In Fig. 7, the No. 2 yoke first descends to the set height, and then advances to the set distance. In Fig. 7, the arrow in the fork arm is to the right, which is the forward process after the No. 2 fork arm descends. Immediately, the No. 2 fork arm rises to the set height, equal to the No. 1 fork arm, and lifts the object without moving. Then, the two yokes alternately lift the object and do not move, alternately descend, advance, and rise to the set height until the entire yoke is inserted under the object, and the object can be lifted and carried.

When unloading, the yoke lifts the object and stretches out the smooth path, and lifts the object to an appropriate height above the placement position. The two yokes alternately lift the object without moving, descending, and retreating until all the yokes exit below the object. The object falls to the placement position.

During the process of inserting the yoke arm into the bottom of the object and during the unloading process, the advance and retreat of the yoke arm are carried out under the condition that the other yoke arm lifts the object and is lower than the bottom of the object being lifted. No sliding friction.

Among Fig. 8, it is the situation diagram of fork loading goods. It is a picture of the situation where a few bags are lifted directly from the upper fork of the stacked bagged goods, and can be transported to another place for direct stacking. Before the forklifted goods 34, the brace 27 stretches out from the vehicle frame 28 below to the middle position of the two yoke groups earlier, and is supported on the ground. Then, fork loading of the goods 34 is carried out.

Among Fig. 9, it is the situation figure that fork lifts goods and recovers on the vehicle frame. Main arm, moving arm all shrink and shorten, and the yoke and the smooth road that lifts goods 34 are placed on the vehicle frame. The overall length of the body is reduced, the center of gravity is lowered, and the stroller is safer and more convenient to walk.

For the convenience of observing the situation that the yoke is inserted into the lower side of the goods, a camera is installed on the yoke, which is not shown in the accompanying drawings.

Claims (8)

1. combining yoke carrier, mainly it is made up of body portion, lifting arm support part, combination yoke part, it is characterised in that：

（1）, body portion is made up of vehicle frame, handrail, operation dish, cabinet, support；

（2）, lifting arm support part is made up of principal arm, swing arm, crossbearer, crossbearer seat, principal arm oil cylinder, boom cylinder, crossbearer oil cylinder；

（3）, the linkage section that is connected of principal arm most end one-level arm and swing arm rear end be hinged together, swing arm front end is cut with scissors with crossbearer seat Even；

（4）, combination yoke part be made up of yoke, yoke group, yoke lowering or hoisting gear, yoke propulsion plant, control system；

（5）, yoke lowering or hoisting gear is made up of hanger, hanging block, vertical sliding block, hoist cylinder, vertical slideway；

（6）, yoke propulsion plant is made up of smooth road, guide slide, smooth block, motor, sprocket wheel, wide chain；

（7）, hanger be arranged on crossbearer on；

（8）, vertical sliding block be integrally fixed with smooth road and guide slide, vertical sliding block and smooth road are orthogonal；

（9）, vertical sliding block is arranged in the vertical slideway on hanging block；

（10）, smooth block and yoke link into an integrated entity, all in smooth road；

（11）, sprocket wheel, motor be arranged on clamping plate fixed on vertical sliding block；

（12）, the engagement of wide chain one end be fixed on a tooth of sprocket wheel, the other end is connected with smooth block；

（13）, each yoke have a set of independent yoke lowering or hoisting gear and yoke propulsion plant；

（14）, a yoke group have two yokes；

（15）, a combination yoke carrier two yoke groups are installed；

（16）, fork is when loading side and not having the goods of pallet fork insertion space, mobile vehicle body rotates lifting arm support, each yoke group In gap between the goods and following object first to be carried with a yoke front end wedge mouthful insertion, lift a bit, pry open on yoke Expand some gaps, another yoke front end is injected in the gap that the goods is levered up below at once, alternating is levered up, injected, whole It is following that individual yoke front end is inserted into goods, then two yokes alternating risings lift that goods is motionless, decline, proceed to setting away from From following until being inserted through goods, you can lift and transport goods；

（17）, unloading when, goods lift is transported to above placement location, goods is lifted in two yokes alternating rising of each yoke group Thing, decline, retrogressing, following until all exiting goods, goods is to put off in rest area.

2. combination yoke carrier according to claim 1, it is characterised in that：Principal arm oil is installed between principal arm and vehicle frame Cylinder, is provided with boom cylinder, crossbearer oil cylinder is provided between swing arm and crossbearer seat between principal arm and swing arm.

3. combination yoke carrier according to claim 1, it is characterised in that：The rotating of sprocket wheel drives wide chain leading Moved back and forth into the peaceful slideway of slideway, smooth block can be promoted to advance, but stretchy smooth block is retreated.

4. combination yoke carrier according to claim 1, it is characterised in that：Principal arm rear end is hinged at the hinge on vehicle frame On seat.

5. combination yoke carrier according to claim 1, it is characterised in that：Hoist cylinder one end is fixed on hanger On support, the other end is connected with vertical sliding block.

6. combination yoke carrier according to claim 1, it is characterised in that：Body portion, the control of lifting arm support part System is manual control, and the control of combination yoke part is to control and automatically control the control mode being combined manually.

7. combination yoke carrier according to claim 1, it is characterised in that：Support is arranged on vehicle frame below, is to stretch The structure of contracting.

8. combination yoke carrier according to claim 1, it is characterised in that：Camera is installed on yoke.