CN207700258U - A kind of attachment device and its loading machine for loading machine quick-replaceable equipment - Google Patents

Abstract

The utility model discloses a connecting device for quickly changing implements of a loader and the loader thereof. A double-rod hydraulic cylinder is arranged between the left and right booms of the loader, and two piston rods are connected with the left and right sides respectively. Extending the boom, the expansion and contraction of the piston rod can drive the expansion and contraction of the distance between the left and right extension booms, and the left and right extension booms are equipped with fixed pins; it also includes support ear plates, rocker arms and push rods, supporting One end of the ear plate is fixed, and the other end is hinged with the middle of the rocker arm; one end of the rocker arm is connected with the power device, and the other end is hinged with the push rod; the push rod is connected with a cross bar, and a hook is provided on the cross bar; A fixed side plate is provided, and a through hole is arranged on the fixed side plate, and the fixed pin shaft can be inserted into the through hole; a hanging rod is also arranged on the working tool, and the hook can be hung on the hanging rod. It solves the laborious problem of the loader in the prior art when replacing the operating tools, and can realize the replacement of the operating tools by one person in the cab.

Description

A connection device for quickly changing implements of a loader and its loader

technical field

The utility model relates to the technical field of loaders, in particular to a connection device for quickly changing implements of a loader and a loader thereof.

Background technique

Loader is a kind of earthwork construction machinery widely used in highway, railway, construction, hydropower, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc. Do light shoveling and digging on hard soil. After changing to different auxiliary operation tools, it can also carry out bulldozing, lifting and loading and unloading of other materials such as wood.

At present, the operation steps of the loader when changing the work tool are: through the driver's inner operating the boom of the work device, align the mounting frame set on the first section of the boom with the pin hole on the connecting plate on the work tool, and then manually The pin shaft is inserted into the pin shaft hole again, and the working tool is fixed. When changing, the pin shaft needs to be knocked out with a hammer etc. and then replaced. This replacement method is not only troublesome but also laborious.

Therefore, it is a technical problem to be solved how to realize that the driver can complete the replacement of the operating tool by one-man operation in the cab.

Utility model content

The purpose of this utility model is to provide a connection device for quick change of tools of a loader and its loader, which solves the problem of laborious and laborious work tools of the loader in the prior art. Operate in the cab to complete the replacement of work tools.

In order to achieve the above object, the utility model adopts the following technical solutions:

The utility model provides a connection device used for quickly changing tools of a loader, which includes a hook clamping device and a working tool;

The hitch clamping device includes a double-rod hydraulic cylinder arranged between the left boom and the right boom of the loader, and the two piston rods of the double-rod hydraulic cylinder are respectively connected with the left extension boom and the right extension boom , the expansion and contraction of the two piston rods can drive the change of the distance between the left extension boom and the right extension boom, and the left extension boom and the right extension boom are equipped with fixed pins;

The hooking and clamping device also includes a support ear plate, a rocker arm and a push rod, one end of the support ear plate is fixed, the other end of the support ear plate is hinged with the middle part of the rocker arm, one end of the rocker arm is connected with the power unit, and the end of the rocker arm The other end is hinged with the push rod, the push rod is connected with a cross bar, and the cross bar is provided with a hook;

The working tool is provided with a fixed side plate, and a through hole is opened on the fixed side plate, and the fixed pin shafts on the left extension boom and the right extension boom can be inserted into the through hole;

The working tool is also provided with a hanging bar, and the hook on the cross bar can be hung on the hanging bar.

Furthermore, the utility model is characterized in that:

Both sides of the fixed side plate are provided with grooves for providing motion tracks for the fixed pin.

Several working tool lugs are arranged along the length direction of the working tool, and the hanging rod passes through the several working tool lugs so as to be fixed on the working tool.

The hook is able to swivel on the crossbar.

One end of the support ear plate is fixed on the double-rod hydraulic cylinder.

The two piston rods are respectively connected with the left extension boom and the right extension boom through pin shafts.

The power unit is a hydraulic system.

The working tool is a bucket.

The utility model also provides a loader equipped with a connecting device for quickly changing implements of the loader.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model provides a connection device for quick change of equipment of a loader and the loader thereof. By controlling the contraction of the piston rod of the double-rod hydraulic cylinder, the fixed pins on the left extension boom and the right extension boom are The shaft is inserted into the through hole on the work tool. At the same time, the hook on the cross bar is hung on the hanging bar of the work tool by operating the rocker arm. The utility model only needs the construction worker to operate the boom and the rocker arm, and can realize the quick connection or disconnection between one main machine and various working tools without relying on the manual assembly operation of the personnel, and can be applied to the range of working tools widely.

Description of drawings

Fig. 1 is a schematic diagram of the disengagement state of the connection device and the working tool provided by the utility model for the quick replacement of the loader;

Fig. 2 is a schematic diagram of the engagement state of the connecting device and the working tool provided by the utility model for the quick replacement of the loader;

Fig. 3 is the structural representation of the double-rod cylinder provided by the utility model;

Fig. 4 is a schematic structural diagram of the working tool.

In the figure, 1 is the left boom, 2 is the double-rod hydraulic cylinder, 3 is the support lug, 4 is the rocker arm, 5 is the push rod, 6 is the right extension boom, 7 is the fixed pin, 8 is the horizontal Rod, 9 is a hook, 10 is an operation tool ear plate, 11 is a hanging rod, 12 is a groove, 13 is a fixed side plate, and 14 is a piston rod.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Figures 1 and 2, the utility model provides a connection device for quick tool replacement of a loader, including a hook clamping device and a work tool;

Referring to Fig. 3, the hitch clamping device includes a double-rod hydraulic cylinder 2 arranged between the left boom 1 and the right boom of the loader, and the two piston rods 14 of the double-rod hydraulic cylinder 2 are respectively connected with left extension The boom and the right extension boom 6, the expansion and contraction of the two piston rods 14 can drive the expansion and contraction of the distance between the left extension boom and the right extension boom 6, the left extension boom and the right extension boom 6 All are provided with fixed pin shaft 7;

The hooking and clamping device also includes a support lug 3, a rocking arm 4 and a push rod 5, one end of the support lug 3 is fixedly arranged, the other end of the support lug 3 is hinged with the middle part of the rocking arm 4, and one end of the rocking arm 4 is connected to the middle part of the rocking arm 4. The power unit is connected, the other end of the rocker arm 4 is hinged with the push rod 5, the push rod 5 is connected with a cross bar 8, and the cross bar 8 is provided with a hook 9;

Referring to Fig. 4, the working tool is provided with a fixed side plate 13, and a through hole is opened on the fixed side plate 13, and the fixed pin shaft 7 on the left extension boom and the right extension boom 6 can be inserted into the through hole;

The working tool is also provided with a hanging rod 11, and the hook 9 on the cross bar 8 can be hung on the hanging rod 11.

Preferably, both sides of the fixed side plate 13 are provided with grooves 12 for providing a movement track for the fixed pin shaft 7 .

Preferably, several working tool ear plates 10 are provided along the length direction of the working tool, and the hanging rod 11 passes through the several working tool ear plates 10 so as to be fixed on the working tool.

Preferably, the hook 9 is rotatable on the crossbar 8 .

It should be noted that there is no limit to the distance between the two fixed side plates 13 of the work tool, and the hanging rod 11 used for hooking is also very common, because the back side of the work tool has ribs, and the diameter of the hanging rod 11 is only It needs to be smaller than the diameter of the hole on the rib plate to be inserted to complete the installation.

Working principle of the present utility model and using method are as follows:

First, the loader is driven forward, towards the back of the working tool, and the action of turning over and unloading the bucket forward is made, so that the articulated hook 9 is lowered forward, and the pendant hanging rod 11 provided on the back of the hanging working tool is hung. After the articulated hook 9 moves to the bottom of the hanging rod 11 on the back of the working tool, the joystick is controlled to make a bucket action at this time, which will make the hanging rod 11 on the back of the working tool hang on the articulated hook 9, and rely on the working tool The self-weight that has hangs down and rotates backward around the hanging rod 11.

At the same time, the ends of the left extension boom and the right extension boom 6 will be close to the panel on the back of the work tool, and at this time, the operator controls the left boom 1 and the right boom of the loader to descend or rise , so that the ends of the left extension boom and the right extension boom 6 are placed in the groove 12, the fixed pin shaft 7 at the end of the left extension boom and the right extension boom 6 is connected with the through hole on the fixed side plate 13 Basically concentric. Operate the hydraulic system to shrink the piston rods 14 at both ends of the double-rod hydraulic cylinder 2, drive the left extension boom and the right extension boom 6 to move to the through hole of the fixed side plate 13 of the working tool, and finally the fixed pin shaft 7 is inserted into the through hole. In the hole, complete the action of hooking up the working tool.

When the loader needs to be separated from the work tool quickly, first operate the loader to put the work tool on the ground, and then operate the hydraulic system to make the piston rod 14 of the double-rod hydraulic cylinder 2 shrink, and then drive the fixed pin 7 to move from the work tool Exit in the through hole of the fixed side plate 13. This moment, the control operating lever is turned forward to do the action of unloading the bucket until the hook 9 is withdrawn from the cross bar 8 of the work tool, so that it can be conveniently separated and disengaged from the work tool quickly.

The utility model also provides a loader equipped with a connecting device for quick replacement of loaders, which only requires construction workers to operate the boom and rocker 4, and can realize the separation of a main engine without relying on manual assembly operations by personnel. Quickly connect or disconnect with a variety of work tools, and can be applied to a wide range of work tools.

Claims (9)

1. a kind of attachment device for loading machine quick-replaceable equipment, which is characterized in that including mounting clamping device and operation Tool；

It includes the dual-rod hydraulic cylinder (2) being arranged on the left of loading machine between swing arm (1) and right side swing arm, double rod to mount clamping device Two piston rods (14) of hydraulic cylinder (2) are connected separately with left side and extend swing arm and right side extension swing arm (6), two piston rods (14) flexible can drive the variation that left side extends swing arm and right side extends distance between swing arm (6), left side extend swing arm and Right side extends is equipped with fixed pin shaft (7) on swing arm (6)；

Mounting clamping device further includes support otic placode (3), rocking arm (4) and push rod (5), and one end of support otic placode (3) is fixedly installed, The middle part of the other end for supporting otic placode (3) and rocking arm (4) is hinged, and one end of rocking arm (4) is connect with power plant, rocking arm (4) The other end is hinged with push rod (5), and cross bar (8) is connected on push rod (5), and cross bar (8) is equipped with hook (9)；

Power tool is equipped with fixed side panel (13), through-hole is offered on fixed side panel (13), left side extends swing arm and right side is prolonged The fixed pin shaft (7) stretched on swing arm (6) is inserted into through-hole；

Hanging rod (11) is additionally provided on power tool, the hook (9) on cross bar (8) can be hung on hanging rod (11).

2. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that fixed side panel (13) both sides are equipped with the groove (12) for providing movement locus for fixed pin shaft (7).

3. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that along operation work The length direction of tool be equipped with several power tool otic placodes (10), hanging rod (11) through several power tool otic placodes (10) to It is fixed on power tool.

4. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that hook (9) It can be rotated on cross bar (8).

5. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that support otic placode (3) one end is fixed on dual-rod hydraulic cylinder (2).

6. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that two pistons Bar (14) extends swing arm with left side by axis pin respectively and right side extends swing arm (6) and connect.

7. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that power plant For hydraulic system.

8. the attachment device according to claim 1 for loading machine quick-replaceable equipment, which is characterized in that power tool For scraper bowl.

9. a kind of loading machine, which is characterized in that the loading machine has is used for loading machine as described in claim 1-8 any one The attachment device of quick-replaceable equipment.