KR200192765Y1 - The apparatus for auto clamping of excavator - Google Patents

Abstract

The present invention relates to an auto clamping device for an excavator, and in detail,

The upper side is fitted to the arm of the excavator (1) and the shaft of the link to engage the main body and the lower bucket or brake car, the front movement hook 100 is the rear bucket 6 by the powerful hydraulic cylinder (5) ) And the straight diagonal movement can be performed at the same time to be fixed to the fixed shaft of the brake car, and to prevent the bucket (6) and the brake car from being detached during the operation and to safely carry out the excavation work and the brake car work perfectly. A check valve 5 'was formed in the hydraulic system to prevent the hydraulic cylinder from being relaxed even when the operation or the operation was stopped for a long time, and the safety device was installed by installing a safety device even if the hydraulic pipe was broken. To prevent loosening, and the devices are made of strong special materials (AT60, SMS50A, SM45C, SCM440), so the autocram for excavators with strong durability and wear resistance It relates to a ping device.

Description

Automatic clamping device for excavators {The apparatus for auto clamping of excavator}

The present invention relates to an auto clamping device for an excavator, and when it is described in detail, it can be installed and used in all domestic excavators, and it is possible to quickly and accurately exchange and install accessories such as buckets, brakes, crushers, etc. according to the type of excavator work. The present invention relates to an auto clamping device for an excavator capable of fixing the accessory pins firmly and accurately with a hydraulic cylinder.

In general, excavators widely used in construction work sites can be used to diversify the use of the excavator by installing a variety of additional work tools, including a unique bucket installed on the excavator according to the buyer's requirements. It is attached to the arm of the excavator tip by a fastening pin and an auto clamp.

As described above, a variety of operations are to be carried out to replace an excavation tool such as a bucket or a rock crushing tool. For such an exchange operation, first, the arm and the boom are lowered, and then the bucket is removed by removing the pins connecting the bucket and the arm. After aligning the centers of the excavator-side pinhole and the bucket and the pinholes formed in the rock-crushing tool, the pins of the excavator-side pinhole, the excavator-side pinhole and the excavator-side pinhole In the process of recombination, the exchange works.

However, in order to remove the pins inserted into the excavator side pinhole and the excavating tool side pinhole in the conventional exchanging tool, the separating shaft and the striking tool contacting the end face of the pin are used. Since it is necessary to work over, the exchange work is very inconvenient, and there is a problem that the work is delayed by the replacement work.

The Korean Utility Model Publication No. 98-113146 discloses a clamp body which is integrally connected to the main arm and the auxiliary arm of an excavator with a shaft, and a locking portion formed at the lower part of the clamp body to easily assemble or disassemble the rock drill or bucket. Is installed in the rear of the clamp body a mandrel and the hook to hold the fixed rod of the rock drill or the basket, and the hydraulic cylinder is connected to the hydraulic circuit of the excavator to operate the hook,

Korean Utility Model Publication No. 99-12125 installs a pin support block having a semicircular groove in close contact with the circumferential surface of the first drilling tool side pivot installed in an excavating tool at one end of the clamp frame, and on the opposite side thereof, (2) A C-shaped clamp, which is removed and mounted on an excavation tool side pivot, is rotatably installed by a first clamp side pivot of the clamp frame, and one end of the fluid is rotatably coupled to the clamp frame by a tube support pin. A second clamp whose center is coincident with the first excavator side pinhole and the second excavator side pinhole formed on the arm of the excavator while the pivot end of the clamp is pivotally installed at the other end of the cylinder by a rod support pin. It consists of a pivot and a third clamp pivot,

In Korea Patent Publication No. 198156, a sliding groove is formed in a main bracket of a quick clamp to which an optional work machine is fastened, and a sliding plate is installed in the sliding groove so as to perform a linear reciprocating motion. The hook is inserted into the rotation pin fixedly inserted and detachably installed, and a cylinder for operating the hook to rotate the rear of the hook is installed through the fixing pin.

The conventional techniques have a high incidence of failure due to foreign matter penetrating into the rod portion of the hydraulic cylinder, the hydraulic cylinder is relaxed, the bucket is easy to be separated, the hydraulic pipe can be broken, it takes a lot of time during the replacement work There is a problem that this becomes delayed.

In order to solve the above problems, the present invention is equipped with safety devices on both the fixed hook and the mobile hook to prevent the safety accident as much as possible, and the diagonal direction of the hydraulic cylinder connected to the mobile hook by giving an inclination angle in the straight direction By advancing in the direction, it is an object to provide an auto clamping device of an excavator that improves the tightening force of the hydraulic cylinder and doubles durability and stability.

1 is a perspective view of an excavator clamping device of the present invention

2 is a hydraulic cylinder operating state of the present invention

(A) Before replacing the bucket (B) When replacing the bucket

3 is a detailed view of the mobile hook and the fixed hook of the present invention

(C) Transfer hook (D) Fixed hook

Figure 4 operation state of the safety device of the present invention

Top, front and side views when the (E, F, G) handle is lowered

Top, front and side views when the (H, I, J) handle is raised

<Description of the Drawings>

(1) Arm (2,2 ') Boss (3) Side plate (4) Round rod (5) Hydraulic cylinder

(5 ') Check valve (6) Bucket (7) Hook for auxiliary work (8) Side reinforcement plate

(9) Inner reinforcement plate (10) Cylinder rod protection rubber cover (11) Spring (12) Safety pin

(13) Guide groove (14) Guide jaw (15) Handle (100) Hook

(101,101 ') Hook Hook Reinforcement Plate (102,102') Hook Hook Reinforcement Pipe

(103) Hook safety device (104) Lubrication nipple protective cover (200) Fixed hook

(201,201 ') fixed hook reinforcement plate (202) fixed hook reinforcement pipe

(203) Fixed hook safety device

In order to achieve the above object, the present invention is fitted to the shaft of the excavator and the link of the excavator to the upper side to fasten the main body and the lower bucket or brake, and the movable hook on the front side of the rear by a powerful hydraulic cylinder It can rotate and go straight diagonal movement at the same time to fix on the fixed shaft of bucket and brake car.It prevents the bucket and brake car from falling off during operation and it is possible to safely excavate and break car work perfectly. A safety check valve was formed in the system, preventing the hydraulic cylinder from being relaxed even when the operation or operation was stopped for a long time, and a safety device was installed to prevent loosening by the operation of the safety device even if the hydraulic pipe was damaged. The devices are made of strong special materials (AT60, SWS50A, SM45C, SCM440) for durability, durability and wear resistance It relates to a strong excavator automatic clamping device for.

Referring to the features of the present invention in detail,

First, as a diagonal operation direction application of the hydraulic cylinder connected to the mobile hook 100, the bucket (6) mounted on a conventional excavator of the hydraulic cylinder (5) connected to the mobile hook 100 to attach and detach a separate working device This method adopts the method of moving the direction of movement in the straight direction, but this method is operated diagonally by giving an inclination angle to the cylinder operating direction to double the durability and safety of the product by further improving the tightening force of the hydraulic cylinder (5) in the straight direction By adopting the method, the product's performance has been improved by increasing the tightening capacity much more than before.In order to prevent backflow of hydraulic oil in the event of an abnormality in the hydraulic line, a round block type check valve (5 ') is installed inside the cylinder tube. In terms of appearance, function, installation space has been changed.

Second, by applying a safety device on both the fixed hook 200 and the mobile hook 100 to apply a two-stage safety prevention method, to recognize the importance of safety accidents in the nature of excavator work, to prevent the risk of conventional excavators as much as possible Optimal safety measures were applied by attaching separate two-stage safety devices to both the mobile hook 100 and the fixed hook 200 to be connected to the device. Had to.

Third, attaching the circular rod 4 for preventing damage of the side plate 3, by attaching the circular rod (4) as described above to the site where the durability of the conventional excavator is weak, to solve the problem caused by cracking, damage of the product It was.

Fourth, the size of the outer diameter of the bosses 2 and 2 'is the same as that of the excavator arm bosses of the respective manufacturers, so that the outer diameters of both the bosses 2 and 2' are uneven during operation and are not balanced. Long-term work has solved the problem of shortening the life of the boss (2,2 ') due to scratching, abrasion, and deformation of the boss (2,2').

Fifth, by attaching the inner reinforcing plate (9) and the side reinforcing plate (8) separately, one of the most vulnerable parts of the inner and side plates, the internal and external local reinforcement to maximize the product durability.

Sixth, by attaching the auxiliary work hook (7) to the end of the excavator, by connecting a separate component to the auxiliary work hook (7) to move or transport, to use the present invention for other purposes.

Seventh, the appearance of the product was curved to fit the shape of each part to improve the overall quality of the product. In order to improve the weight and durability of the product, the material of the important parts was as follows.

Name material Remarks Side plate SWS 50A Boss SM 45C Pin SCM 440 Stiffener AT60 SM 45C

Hereinafter, with reference to the drawings will be described in detail.

Figure 1 is a perspective view of the excavator clamping device of the present invention, Figure 2 is an operating state of the hydraulic cylinder of the present invention, (A) before the bucket replacement, (B) when replacing the bucket, Figure 3 is the movement of the present invention As a detailed view of the hook and the fixed hook, (C) the mobile hook, (D) the fixed hook, Figure 4 is the operation state diagram of the safety device of the present invention, (E, F, G) when the handle is lowered, front view Fig. And side views are a plan view, a front view and a side view when the (H, I, J) handle is raised, and reference numerals are used for the arms 1, the bosses 2 and 2 ', and the side plates 3. , Round rod (4), hydraulic cylinder (5), check valve (5 '), bucket (6), auxiliary work hook (7), side reinforcement plate (8), inner reinforcement plate (9), cylinder rod protective rubber Cover (10), spring (11), safety pin (12), guide groove (13), guide jaw (14), handle (15), moving hook (100), moving hook reinforcing plate (101, 101 '), moving hook reinforcement Pipe 102, 102 ', mobile hook safety device 103, lubricating nipple protective cover 104, fixed hook (20) 0), the fixed hook reinforcing plate (201, 201 '), the fixed hook reinforcing pipe 202, it can be seen that the fixed hook safety device (203).

1 and 2 are related to the clamping device and the hydraulic cylinder of the present invention, each part used a special material, the overall appearance is processed in a curve, to improve the tightening force to double the durability and safety of the product In order to prevent safety accidents by inspecting the hydraulic cylinder (5) connected to the movable hook (100) operating in the diagonal operation direction by giving an inclination angle to the cylinder operating direction, and the abnormality of the hydraulic valve in the rear of the hydraulic cylinder (5). And a cylinder rod protective rubber cover 10 to prevent foreign substances such as dust and dirt from penetrating the formed check valve 5 'and the rod portion of the hydraulic cylinder 5;

Moving hook 100 and fixed hook 200 with separate safety devices 103 and 203 to prevent optimal safety connected with various devices in order to prevent the maximum risk, and for preventing damage attached to the side plate 3 Circular rods 4, bosses 2 and 2 'having the same outer diameter and extending lifespan due to scratching, abrasion and deformation, and inner reinforcing plates for local reinforcement of side plates and inner and outer sides 9 ) And side reinforcement plate (8), and a hook (7) for auxiliary work for moving or transporting separate parts,

3 is a detailed view of the movable hook 100 and the fixed hook 200, the movable hook 100 is a lubricating nipple protective cover 104 is formed on the upper, the movable hook reinforcing plate (101, 101 ') and the movement Hook reinforcement pipes (102, 102 ') were added to reinforcement, and prepared for mounting a safety hook safety device (103) in preparation for a safety accident, the fixed hook 200 is formed in a rectangular box form because it receives a considerable force The reinforcing hook reinforcing plate (201,201 ') and the fixed hook reinforcing pipe (202) was added and reinforced, and was prepared by mounting the fixed hook safety device (203) in preparation for safety accidents.

4 is a state diagram illustrating the operation of the safety devices 103 and 203 of the movable hook 100 and the fixed hook 200.

A spring 11 is internally installed therein, and a safety pin 12 is mounted at a lower portion of the spring 11, and a guide groove 13 and a guide jaw 14 having a 'c' shape on the outside and the guide groove. A handle 15 is formed at 13 so that the safety pin 12 is lifted when the handle 15 is hung on the guide jaw 14 along the guide groove 13, and a replacement work is performed. After this, when the handle 15 is slightly moved, the safety pin 12 is lowered by the elasticity of the spring 11.

When explaining the operation method, when replacing the bucket, lift the arm (1) of the excavator to the appropriate height, and the bucket (1) is operated perpendicular to the ground to operate the bucket adjustment lever hydraulically fixed hook ( After confirming that the safety device 203 of the 200 is opened, the hydraulic cylinder 5 is operated to remove the hook from the movable hook 100, adjust the excavator to lower the attachment to the ground, and then replace the fixed attachment first with the fixed hook ( Fixing the safety device 203 by fastening to the 200) and then operate the hydraulic cylinder of the excavator to fasten to the mobile hook 100 and to fix the safety device 103.

The device of the present invention as described above adopts a diagonal method to operate by giving an inclination angle to the cylinder operating direction, thereby significantly improving the performance of the product by significantly tightening the capacity of the conventional device, and attaching two-stage safety devices to the fixed hook and the mobile hook separately. Optimized safety measures were applied, and the work efficiency was improved by simplifying the detachment time when attaching and detaching various devices.The problem of cracks and breakage of products was solved by attaching round rods. And minimizing the weight to maximize the work efficiency under the condition that the equipment is not unreasonable during the operation of the excavator.The outer diameter of the boss is equal to the outer diameter of the excavator arm boss of each manufacturer, so that the balance between both bosses during operation Long-term operation by maintaining the risk of damage to the boss caused by scratches, Solving the problem, by attaching the auxiliary work hook on the end of the excavator, there is an effect of moving or transporting a separate component to the auxiliary work hook.

Claims (2)

In the auto clamping device for excavators, each part is made of special material, and the overall appearance is curved. In order to further improve the tightening force and double the durability and safety of the product, the hydraulic cylinder (5) connected to the movable hook (100) for operating in the diagonal operation direction by giving an inclination angle to the cylinder operating direction, and the rear of the hydraulic cylinder (5) Check valve (5 ') formed to check for abnormality of the hydraulic valve to prevent safety accidents, and cylinder rod protection rubber to prevent foreign substances such as dust, dirt, and the like from penetrating the rod portion of the hydraulic cylinder (5) Cover 10, A mobile hook 100 and a fixed hook 200 to which separate safety devices 103 and 203 are attached to prevent optimal safety to be connected to various devices in order to prevent the maximum risk; Damage prevention round bar (4) attached to the side plate (3), Bosses (2,2 ') that have the same outer diameter to prolong the life due to scratching, abrasion and deformation, An inner reinforcing plate 9 and a side reinforcing plate 8 for local reinforcement inside and outside the side plate 3, Auto-clamping device for an excavator, characterized in that it comprises a secondary hook (7) for moving or transporting separate parts. According to claim 1, The safety device (103, 203) and the safety pin (12) which is installed inside the spring 11, the lower end of the spring 11, the upper and lower with the elasticity of the spring (11) and , 'C' shaped guide groove 13 and guide jaw 14 formed on the outside, and the auto clamping for excavators, characterized in that it comprises a handle 15 is guided and moved to the guide groove 13 Device.