Remote control excavator with elongated working arm

Abstract

The utility model discloses a kind of remote control excavator lengthened working arm, belong to excavator technical field, solve the problem of existing including lengthened working arm inconvenient use. It lengthens swing arm and bucket rod, the other end of the bucket rod is detachably installed with auxiliary arm, the outside of the auxiliary arm is equipped with parallel lengthened connecting rod, the both ends of the auxiliary arm are respectively hinged and installed with rocker, the one end of two the rocker away from auxiliary arm is respectively hinged and connected with the both ends of lengthened connecting rod, the outside of the bucket rod is also hinged and installed with auxiliary arm oil cylinder, the output end of the auxiliary arm oil cylinder is hinged and connected with the one end of one rocker away from auxiliary arm, the one end of the auxiliary arm away from bucket rod is hinged and connected with bucket, the back of the bucket is hinged and installed with linkage rod, the one end of the linkage rod away from bucket is hinged and connected with the one end of another rocker away from auxiliary arm. The lengthened working arm of remote control excavator of the utility model can provide enough operation distance, also has good transport state, and good rigidity.

Description

Technical Field

[0001] This utility model relates to the field of excavator technology, and more specifically, to an extended working arm for a remote-controlled excavator. Background Technology

[0002] The remote-controlled excavator extension arm is a work arm component adapted to remote-controlled excavators to extend their working radius. Its core function is to increase the working range (such as digging depth, height, and long-distance working distance) of the remote-controlled excavator through structural design without moving the excavator body. At the same time, it is compatible with the remote control system to realize remote control and adapt to the operational needs of high-risk and complex scenarios.

[0003] Existing technologies generally employ integral welding or fixed splicing of extended booms. While this approach offers structural simplicity, the fixed overall size presents challenges for transportation and relocation. Furthermore, for remotely operated excavators, the operator is far from the site and cannot directly perceive the boom's posture. The fixed boom lacks necessary posture feedback information, making precise remote control extremely difficult and prone to collisions or digging errors. Although some retractable extended boom solutions exist on the market, they may suffer from stability issues under heavy-duty conditions and are also more expensive.

[0004] Therefore, there is an urgent need to develop and design a remote-controlled excavator with an extended working arm to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art. The purpose of this utility model is to provide a remote-controlled excavator with an extended working arm that can provide sufficient working distance, good transport conditions, and good rigidity.

[0006] The technical solution of this utility model is as follows: A remote-controlled excavator with an extended boom includes an extended boom and a stick. One end of the extended boom is hinged to the excavator body, and the other end is hinged to one end of the stick. A boom cylinder is provided between the excavator body and the extended boom, with both ends of the boom cylinder hinged to the excavator body and the extended boom, respectively. A stick cylinder is provided between the extended boom and the stick, with both ends of the stick cylinder hinged to the extended boom and the stick, respectively. A secondary boom is detachably mounted on the other end of the stick. An extension link parallel to the outer side of the boom is provided. Rockers are hinged to both ends of the boom. The ends of the two rockers away from the boom are hinged to the ends of the extension link. A boom cylinder is also hinged to the outer side of the stick. The output end of the boom cylinder is hinged to the end of one of the rockers away from the boom. The end of the boom away from the stick is hinged to the bucket. A connecting rod is hinged to the back of the bucket. The end of the connecting rod away from the bucket is hinged to the end of another rocker away from the boom.

[0007] As a further improvement, the extended boom is a curved boom with an obtuse angle, the boom cylinder is located on the inner side of the extended boom, and the hinge point between the boom cylinder and the extended boom is located at the bend of the extended boom.

[0008] Furthermore, the boom cylinder is located on the outside of the extended boom, the hinge point between the extended boom and the boom is located on the upper part of the boom, and the hinge point between the boom cylinder and the boom is located at the upper end of the boom.

[0009] Furthermore, the rocker arm is an arc-shaped rod.

[0010] Furthermore, one of the rocker arms is hinged to the auxiliary arm cylinder and the extended connecting rod on the same hinge axis, and the other rocker arm is hinged to the extended connecting rod and the connecting rod on the same hinge axis.

[0011] Furthermore, the stick and the boom are connected by at least two detachable pins, and the stick and the boom extend in the same axial direction.

[0012] Beneficial effects Compared with the prior art, the advantages of this utility model are as follows: The extended working arm of this utility model is formed by adding a detachable auxiliary arm to the end of the stick, which together with the rocker arm and the extended connecting rod forms a four-bar linkage. The auxiliary arm cylinder drives the four-bar linkage to move, thereby controlling the bucket to swing in a digging posture, realizing the digging action of the excavator. It can provide sufficient working distance, have good transport conditions, and have good rigidity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model during excavation; Figure 3 This is the envelope diagram of the present invention during operation.

[0014] Among them: 1-Extended boom, 2-Stick, 3-Excavator, 4-Body, 5-Boom cylinder, 6-Stick cylinder, 7-Auxiliary boom, 8-Extended connecting rod, 9-Rock arm, 10-Auxiliary boom cylinder, 11-Bucket, 12-Connecting rod, 13-Pin. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0016] See Figure 1-3As shown, this utility model discloses a remote-controlled excavator extended boom, including an extended boom 1 and a stick 2. One end of the extended boom 1 is hinged to the body 4 of the excavator 3, and the other end is hinged to one end of the stick 2. A boom cylinder 5 is provided between the body 4 and the extended boom 1, with both ends of the boom cylinder 5 hinged to the body 4 and the extended boom 1 respectively, enabling control of the extended boom 1 to swing relative to the body 4. A stick cylinder 6 is provided between the extended boom 1 and the stick 2, with both ends of the stick cylinder 6 hinged to the extended boom 1 and the stick 2 respectively, enabling control of the stick 2 to swing relative to the extended boom 1. A detachable auxiliary boom 7 is detachably installed at the other end of the stick 2. The detachable auxiliary boom 7 can be disassembled during transportation, shortening the overall length of the boom, facilitating relocation, transportation, and storage, and lowering the center of gravity, thus improving safety. An extended connecting rod 8 parallel to the outer side of the boom 7 is provided. Rockers 9 are hinged to both ends of the boom 7. The ends of the two rockers 9 away from the boom 7 are hinged to the ends of the extended connecting rod 8, forming a four-bar linkage. A boom cylinder 10 is also hinged to the outer side of the stick 2. The output end of the boom cylinder 10 is hinged to the end of one of the rockers 9 away from the boom 7. The end of the boom 7 away from the stick 2 is hinged to the bucket 11. A connecting rod 12 is hinged to the back of the bucket 11. The end of the connecting rod 12 away from the bucket 11 is hinged to the end of another rocker 9 away from the boom 7. This allows the boom cylinder 10 to drive the bucket 11 to swing through the four-bar linkage, thus realizing digging work.

[0017] The extended working arm of this utility model is formed by adding a detachable auxiliary arm 7 to the end of the stick 2, which together with the rocker arm 9 and the extended connecting rod 8 forms a four-bar linkage mechanism. The auxiliary arm cylinder 10 drives the four-bar linkage mechanism to move, thereby controlling the bucket 11 to swing in a digging posture, realizing the digging action of the excavator. It can provide sufficient working distance, have good transport conditions, and have good rigidity.

[0018] Preferably, the extended boom 1 is a curved boom with an obtuse angle so that the bucket 11 can dig to a deeper location. The boom cylinder 5 is located inside the extended boom 1. The layout of the boom cylinder 5 is reasonably optimized, and the hinge point between the boom cylinder 5 and the extended boom 1 is located at the bend of the extended boom 1, so that the force is more evenly distributed.

[0019] Preferably, the boom cylinder 6 is located on the outside of the extended boom 1. The layout of the boom cylinder 6 is reasonably optimized. The hinge point between the extended boom 1 and the boom 2 is located at the upper part of the boom 2, and the hinge point between the boom cylinder 6 and the boom 2 is located at the upper end of the boom 2, so that the force is more evenly distributed.

[0020] Preferably, the joystick 9 is an arc-shaped rod, which makes the force more stable.

[0021] Preferably, one rocker arm 9 is hinged to the auxiliary arm cylinder 10 and the extended connecting rod 8 on the same hinge axis, and the other rocker arm 9 is hinged to the extended connecting rod 8 and the connecting rod 12 on the same hinge axis, so that the structure of the auxiliary arm 7 and the four-bar linkage is more compact and the force is more stable.

[0022] Preferably, the boom 2 and the auxiliary boom 7 are connected by at least two detachable pins 13. The pins 13 pass through the boom 2 and the auxiliary boom 7 and are fitted with cotter pins to achieve a detachable connection, making disassembly and assembly convenient. In other embodiments, the boom 2 and the auxiliary boom 7 can also be connected by multiple bolts, with the boom 2 and the auxiliary boom 7 extending in the same axial direction.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A remote-controlled excavator with an extended boom, comprising an extended boom (1) and a stick (2), wherein one end of the extended boom (1) is hinged to the body (4) of an excavator (3), and the other end is hinged to one end of the stick (2); a boom cylinder (5) is provided between the body (4) and the extended boom (1), wherein both ends of the boom cylinder (5) are hinged to the body (4) and the extended boom (1) respectively; a stick cylinder (6) is provided between the extended boom (1) and the stick (2), wherein both ends of the stick cylinder (6) are hinged to the extended boom (1) and the stick (2) respectively, characterized in that, The other end of the stick (2) is detachably equipped with a secondary boom (7). An extension rod (8) parallel to the secondary boom (7) is provided on the outside of the secondary boom (7). Rockers (9) are respectively hinged to both ends of the secondary boom (7). The ends of the two rockers (9) away from the secondary boom (7) are respectively hinged to both ends of the extension rod (8). A secondary boom cylinder (10) is also hinged to the outside of the stick (2). The output end of the secondary boom cylinder (10) is hinged to the end of one of the rockers (9) away from the secondary boom (7). The end of the secondary boom (7) away from the stick (2) is hinged to the bucket (11). A connecting rod (12) is hinged to the back of the bucket (11). The end of the connecting rod (12) away from the bucket (11) is hinged to the end of the other rocker (9) away from the secondary boom (7).

2. The remote-controlled excavator extended boom according to claim 1, characterized in that, The extended boom (1) is a bent boom with an obtuse angle. The boom cylinder (5) is located inside the extended boom (1), and the hinge of the boom cylinder (5) and the extended boom (1) is located at the bend of the extended boom (1).

3. The remote-controlled excavator extended boom according to claim 1, characterized in that, The boom cylinder (6) is located on the outside of the extended boom (1), the hinge of the extended boom (1) and the boom (2) is located on the upper part of the boom (2), and the hinge of the boom cylinder (6) and the boom (2) is located at the upper end of the boom (2).

4. The extended boom of a remote-controlled excavator according to claim 1, characterized in that, The rocker arm (9) is an arc-shaped rod.

5. A remote-controlled excavator extended boom according to any one of claims 1-4, characterized in that, One of the rocker arms (9) is hinged to the auxiliary arm cylinder (10) and the extended connecting rod (8) on the same hinge axis, and the other rocker arm (9) is hinged to the extended connecting rod (8) and the connecting rod (12) on the same hinge axis.

6. The extended boom of a remote-controlled excavator according to claim 5, characterized in that, The stick (2) and the boom (7) are connected by at least two detachable pins (13), and the stick (2) and the boom (7) extend in the same axial direction.

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