Folding type excavator bucket mechanical arm

Abstract

The utility model discloses a folding type excavator bucket mechanical arm which is mainly composed of a base, a main arm, a telescopic arm, a swing arm, a connecting arm, a working arm, a connecting plate, an excavator bucket, a pitching oil cylinder, a telescopic oil cylinder, a swing arm oil cylinder, a connecting oil cylinder, a working oil cylinder and an excavator bucket oil cylinder. The mechanical arm is composed of the first-stage telescopic arm and the third-stage folding arm, the telescopic arm is located outside the furnace to stretch out and draw back, the folding arms are folded in the furnace, the operation handle on the movable hydraulic station operates actions of the oil cylinders, and slag at the bottom of the blast furnace is removed to the outside of the blast furnace through the excavator bucket by means of cooperation of the oil cylinders. Therefore, the purpose of cleaning slag through the mechanical arm is achieved. Manual slag cleaning is replaced, the working efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical machinery, and in particular relates to a foldable bucket mechanical arm. Background Art

[0002] After the smelting of steel blast furnace is completed, thick slag will be crystallized on the furnace wall. When the slag on the furnace wall is removed, more slag will gather at the bottom of the furnace. The current method of removing the slag at the bottom of the furnace is to remove it manually, which is inefficient and labor-intensive. Therefore, it is necessary to design a foldable bucket robot arm dedicated to removing the waste slag at the bottom of the furnace. Utility Model Content

[0003] The utility model provides a foldable bucket mechanical arm, which aims to solve the technical problem of manually removing slag in a furnace, and completes the removal of the slag by operating the bucket mechanical arm.

[0004] In order to solve the above technical problems, the utility model provides a foldable bucket mechanical arm, which is characterized in that it includes a base 1, a main arm 2, a telescopic arm 3, a swing arm 4, a connecting arm 5, a working arm 6, a connecting plate 7, and a bucket 8; the base 1 is hinged to one end of the main arm 2, and the telescopic arm 3, the swing arm 4, the connecting arm 5, the working arm 6, and the bucket 8 are rotatably connected in sequence; one end of a pitch cylinder 9 is hinged to the base 1, and the other end is hinged to the middle and lower part of the main arm 2; the telescopic arm 3 is slidably connected to the main arm 2; one end of the connecting plate 7 is hinged to the working arm 6, and the other end is hinged to the bucket 8; a telescopic cylinder 10 is connected to the side wall of the telescopic arm 3 and the main arm 2; a swing arm cylinder 11 is connected to the end of the swing arm 4 and the front of the telescopic arm 3; a connecting cylinder 12 is connected to the middle of the swing arm 4 and the rear of the connecting arm 5; a working cylinder 13 is connected to the front of the connecting arm 5 and the middle and front part of the working arm 6; a bucket cylinder 14 is connected to the middle and rear of the working arm 6 and the outer side of the connecting plate 7.

[0005] Beneficial effect: The utility model bucket excavator mechanical arm is composed of a first-stage telescopic arm and a third-stage folding arm. The telescopic arm is located outside the furnace for extension, and the folding arm is folded inside the furnace. The operating handle on the mobile hydraulic station operates the movement of each cylinder. Through the coordinated cooperation of each cylinder, the slag at the bottom of the blast furnace is removed to the outside of the blast furnace through the bucket, thereby achieving the purpose of cleaning the slag by the mechanical arm; instead of manually cleaning the slag, the work efficiency is improved and the labor intensity of workers is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a composition diagram of a foldable bucket mechanical arm;

[0007] Figure 2 A diagram of a foldable bucket mechanical arm working in a furnace;

[0008] Figure 3A diagram of a foldable bucket robot arm being folded inside a furnace.

[0009] In the figure: 1-base, 2-main arm, 3-telescopic arm, 4-swing arm, 5-connecting arm, 6-working arm, 7-connecting plate, 8-bucket, 9-pitch cylinder, 10-telescopic cylinder, 11-swing arm cylinder, 12-connecting cylinder, 13-working cylinder, 14-bucket cylinder. DETAILED DESCRIPTION

[0010] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below.

[0011] The utility model provides a foldable bucket mechanical arm, comprising a base 1, a main arm 2, a telescopic arm 3, a swing arm 4, a connecting arm 5, a working arm 6, a connecting plate 7, a bucket 8, a pitch cylinder 9, a telescopic cylinder 10, a swing arm cylinder 11, a connecting cylinder 12, a working cylinder 13, and a bucket cylinder 14;

[0012] The base 1 is hinged to one end of the main arm 2, and the telescopic arm 3, the swing arm 4, the connecting arm 5, the working arm 6, and the bucket 8 are rotatably connected in sequence; one end of the pitch cylinder 9 is hinged to the base 1, and the other end is hinged to the middle and lower part of the main arm 2; the telescopic arm 3 is slidably connected to the main arm 2; one end of the connecting plate 7 is hinged to the working arm 6, and the other end is hinged to the bucket 8;

[0013] A telescopic cylinder 10 is connected to the side wall of the telescopic arm 3 and the main arm 2; a swing arm cylinder 11 is connected to the end of the swing arm 4 and the front of the telescopic arm 3; a connecting cylinder 12 is connected to the middle of the swing arm 4 and the rear of the connecting arm 5; a working cylinder 13 is connected to the front of the connecting arm 5 and the middle and front part of the working arm 6; and a bucket cylinder 14 is connected to the middle and rear part of the working arm 6 and the outer side of the connecting plate 7.

[0014] The hinge points of the connecting plate 7, the working cylinder 13, the bucket cylinder 14 and the working arm 6 are arranged in sequence from front to back.

[0015] The connection modes between the base and the main arm and the pitch cylinder, each cylinder and each working arm, and each working arm are all pin-shaft connections.

[0016] in:

[0017] (1) The base is fixed on the steel structure platform of the blast furnace and can rotate 360°. The structure consists of a fixed mounting plate, a rotating mechanism, and a connecting device. The fixed mounting plate is connected to the structural beam of the blast furnace platform by bolts to fix the entire device; the rotating mechanism is a belt-driven slewing mechanism; the connecting device is a welded structural part, and the connecting device is hinged with the main arm 2 and the pitch cylinder 9 through a pin shaft. When the rotating mechanism rotates, the connecting device is driven to rotate, thereby realizing the rotation of the upper mechanical arm.

[0018] (2) Main arm: The main arm is mainly welded from steel plates and is a square welded structural member. One end is an articulated ear shaft hinged to the base, and the other end is open to allow the telescopic arm 3 to telescope inside. Wear-resistant plates are installed around the inner side of the main arm to provide guidance for the telescopic arm 3. The mounting shaft of the telescopic cylinder 10 is welded on the outer side of the main arm. The welded support on the lower side is hinged to the pitch cylinder 9 through a pin shaft.

[0019] (3) The telescopic arm is a square welded structural member with closed ends; a connecting seat is welded at the front end and is hinged to the swing arm 4 through a pin; a mounting shaft for installing the telescopic cylinder 10 is welded on the side; and a welded support on the upper side is hinged to the swing arm cylinder 11 through a pin.

[0020] (4) The swing arm is a square welded structural member with connecting seats welded at both ends. One end is hinged to the swing arm cylinder 11 through a pin, and the other end is hinged to the connecting arm 5 through a pin. A connecting hole is opened at the rear of the swing arm and connected to the telescopic arm 3 through a pin. A mounting shaft for mounting the connecting cylinder 12 is welded in the middle of one side.

[0021] (5) The connecting arm is a square welded structural member with connecting seats welded at both ends. One end is hinged to the swing arm 4 through a pin, and the other end is hinged to the working arm 6 through a pin. A mounting shaft for installing the connecting cylinder 12 is welded at the rear of the connecting arm; and a mounting shaft for installing the working cylinder 13 is welded at the front.

[0022] (6) Working arm: The working arm is a semi-open square structure with connecting seats welded at both ends. One end is hinged to the connecting arm 5 through a pin, and the other end is hinged to the bucket 8 connecting seat through a pin. A support hinged to the bucket cylinder 14 is welded in the middle of the working arm and connected through a pin. A mounting shaft for mounting the working cylinder 13 is welded on one side of the outside of the working arm. The two side plates at the front end are welded to mounting shafts hinged to the connecting plate 7.

[0023] (7) Connecting plate: The connecting plate is a separate plate-shaped part, and both ends of the single connecting plate are in the form of connecting holes. The two connecting plates are connected by a pin shaft and installed on the mounting shafts on both sides of the working arm 6. The other end is connected to the bucket 8 by a pin shaft, and the whole forms a four-bar linkage, which allows the bucket to swing over a wide range.

[0024] (8) Bucket: The bucket is an open welded structural component, the rear fixed seat and the working arm 6 are hinged by a pin, and the external connecting seat and the connecting plate 7 are hinged by a pin.

[0025] (9) The pitch cylinder is arranged at the rear of the main arm 2. The pitch cylinder barrel trunnion is connected to the base 1, and the piston rod trunnion is connected to the main arm 2. The pitch movement of the robot arm is realized through telescopic movement.

[0026] (10) The telescopic cylinder is arranged outside the main arm 2. The cylinder trunnion of the telescopic cylinder is connected to the main arm 2, and the piston rod trunnion is connected to the telescopic arm 3. The telescopic movement of the telescopic arm inside the main arm is realized through telescopic movement.

[0027] (11) The swing arm cylinder is arranged in front of the telescopic arm 3. The cylinder trunnion of the swing arm cylinder is connected to the telescopic arm 3, and the piston rod trunnion is connected to the swing arm 4. The pitching movement of the swing arm is realized through the telescopic movement of the swing arm cylinder.

[0028] (12) The connecting cylinder is arranged in the middle of the swing arm 4 and the connecting arm 5. The connecting cylinder barrel trunnion is connected to the swing arm 4, and the piston rod trunnion is connected to the connecting arm 5. The folding action of the connecting arm 5 is achieved by the telescopic action of the connecting cylinder. After the connecting cylinder is fully retracted, the connecting arm 5 is folded to be parallel to the swing arm 4.

[0029] (13) The working cylinder is arranged in the middle of the connecting arm 5 and the working arm 6. The trunnion of the working cylinder is connected to the connecting arm 5, and the trunnion of the piston rod is connected to the working arm 6. The folding action of the working arm 6 is achieved through the telescopic action of the working cylinder. After the working cylinder is fully retracted, the working arm 6 is folded to be parallel to the connecting arm 5.

[0030] (14) The bucket cylinder is arranged inside the connecting working arm 6. The bucket cylinder barrel trunnion is connected to the working arm 6, and the piston rod trunnion is connected to the connecting plate 7. The telescopic action of the bucket cylinder drives the four-bar structure to enable the bucket to achieve the digging action.

[0031] The utility model bucket excavator mechanical arm consists of a primary telescopic arm and a three-stage folding arm. The telescopic arm is located outside the furnace for extension, and the folding arm is folded inside the furnace. The operation of each cylinder is operated by an operating handle on the mobile hydraulic station. Through the coordinated cooperation of each cylinder, the slag at the bottom of the blast furnace is removed to the outside of the blast furnace through the bucket, thereby achieving the purpose of cleaning the slag by the mechanical arm.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A foldable bucket mechanical arm, characterized in that: The invention comprises a base (1), a main arm (2), a telescopic arm (3), a swing arm (4), a connecting arm (5), a working arm (6), a connecting plate (7), and a bucket (8); the base (1) is hinged to one end of the main arm (2); the telescopic arm (3), the swing arm (4), the connecting arm (5), the working arm (6), and the bucket (8) are rotatably connected in sequence; one end of a pitch cylinder (9) is hinged to the base (1), and the other end is hinged to the middle and lower part of the main arm (2); the telescopic arm (3) is slidably connected to the main arm (2); one end of the connecting plate (7) is hinged to the base (1), and the other end is hinged to the middle and lower part of the main arm (2); The telescopic arm (3) is hinged to the working arm (6), and the other end is hinged to the bucket (8); the telescopic arm (3) and the side wall of the main arm (2) are connected to a telescopic cylinder (10); the end of the swing arm (4) and the front of the telescopic arm (3) are connected to a swing arm cylinder (11); the middle of the swing arm (4) and the rear of the connecting arm (5) are connected to a connecting cylinder (12); the front of the connecting arm (5) and the middle front of the working arm (6) are connected to a working cylinder (13); the middle rear of the working arm (6) and the outer side of the connecting plate (7) are connected to a bucket cylinder (14).

2. A foldable bucket mechanical arm according to claim 1, characterized in that: The hinge points of the connecting plate (7), the working oil cylinder (13), the bucket oil cylinder (14) and the working arm (6) are arranged in sequence from front to back.

3. The foldable bucket mechanical arm according to claim 1, characterized in that: The hinges are all connected by pins.

4. The foldable bucket mechanical arm according to claim 1, characterized in that: The base is installed on the blast furnace steel structure platform and can rotate 360°.

5. The foldable bucket mechanical arm according to claim 1, characterized in that: The main arm is welded from steel plates and is a square welded structural part.

6. The foldable bucket mechanical arm according to claim 1, characterized in that: The telescopic arm is a square welded structure with closed ends.

7. The foldable bucket mechanical arm according to claim 1, characterized in that: The swing arm and connecting arm are both square welded structural parts, and connecting seats are welded at both ends.

8. The foldable bucket mechanical arm according to claim 1, characterized in that: The working arm is a semi-open square structure with connecting seats welded at both ends.

9. The foldable bucket mechanical arm according to claim 1, characterized in that: The connecting plate and the bucket 8 are connected as a whole to form a four-bar linkage.

10. The foldable bucket mechanical arm according to claim 1, characterized in that: The bucket cylinder is arranged inside the working arm, the bucket cylinder barrel trunnion is connected to the working arm, and the piston rod trunnion is connected to the connecting plate.

Images