A new type of engineering machinery boom

Abstract

The utility model discloses a novel engineering machinery boom, including a boom and a forearm, a box body fixedly connected to the side wall of the boom, a screw rod rotatably connected in the box body, a nut threadedly connected to the screw rod, a rotating mechanism for rotating the screw rod is installed on the upper end of the box body, a push rod is fixedly connected to the nut, a connecting rod is rotatably connected to the push rod, and a roller is rotatably connected to the connecting rod. The utility model uses motors, screw rods, nuts, rollers, connecting rods, push rods and other parts to move the nut on the screw rod, thereby rotating the roller and driving the rotation of the middle arm, so the angle between the middle arm and the boom can be adjusted at multiple angles. The boom with multiple angles can be quickly adjusted to a suitable position according to the operation requirements, reducing the time wasted due to adjusting the position. This flexibility enables the excavator to adapt to different operating environments more quickly and improve operating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a novel engineering machinery movable arm. Background Art

[0002] The boom refers to a working device of an excavator, also commonly called the upper arm. Its main function is to control the digging and loading actions of the bucket. The arm connected to the frame is longer, so it is commonly called the upper arm. The terminology is called the boom. The boom is usually driven by an adjusting device to adjust the height of the boom.

[0003] Regarding a new type of engineering machinery boom disclosed in the patent publication number "CN217630172U", a number of front boom fixing holes are distributed at equal angles on a circle with the front boom center hole as the center, and the through hole after the front boom center hole and the rear boom center hole are connected is inserted into the connecting pin shaft, but since the front boom fixing holes opened on the front boom are limited and fixed, the adjustment angle of the boom is limited and fixed, which is difficult to adapt to different actual scenes and is troublesome to operate. Based on this, the present application proposes a new type of engineering machinery boom. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a novel engineering machinery boom.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel engineering machinery boom includes a boom and a forearm, a box body is fixedly connected to the side wall of the boom, a screw rod is rotatably connected in the box body, a nut is threadedly connected to the screw rod, a rotating mechanism for rotating the screw rod is installed on the upper end of the box body, a push rod is fixedly connected to the nut, a connecting rod is rotatably connected to the push rod, a roller is rotatably connected to the connecting rod, and the roller is rotatably connected to the side wall of the boom, a middle arm is fixedly connected to the side of the roller away from the boom, a guide mechanism for guiding the nut is installed in the box body, a concave box is fixedly connected to the upper end of the boom, and a power mechanism for moving the forearm is installed on the concave box. A steering mechanism for rotating the forearm is installed on the middle arm.

[0007] Preferably, the rotating mechanism comprises a motor, the motor is fixedly mounted on the upper end of the box, and the output shaft of the motor is fixedly mounted on the screw.

[0008] Preferably, the guide mechanism comprises two slide blocks, the inner wall of the box body is provided with two slide grooves, each of the slide blocks is fixedly mounted on the side wall of the nut, and the slide blocks slide in adjacent slide grooves.

[0009] Preferably, the power mechanism comprises a short rod and a hydraulic telescopic rod, the short rod is rotatably mounted in the concave box, one end of the hydraulic telescopic rod is fixedly mounted on the short rod, and the other end of the hydraulic telescopic rod is rotatably mounted on the forearm.

[0010] Preferably, the steering mechanism comprises a long rod, the long rod rotates in the middle arm, and the small arm is fixedly mounted on the long rod.

[0011] Preferably, a groove is provided at the bottom end of the box body, and the push rod slides in the groove.

[0012] The utility model has the following beneficial effects:

[0013] Through the motor, screw, nut, roller, connecting rod, push rod and other parts, the nut moves on the screw, so that the roller rotates, and then drives the middle arm to rotate, so the angle between the middle arm and the upper arm can be adjusted at multiple angles. The multi-angle adjustable boom can be quickly adjusted to the appropriate position according to the operation requirements, reducing the time wasted due to position adjustment. This flexibility allows the excavator to adapt to different operating environments more quickly and improve operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front structural schematic diagram of a novel engineering machinery boom proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the side shaft connection of the box, motor, screw, nut, roller, connecting rod, push rod and other parts proposed in the utility model;

[0016] Figure 3 This is a connection diagram of the power mechanism proposed by the utility model;

[0017] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1 small arm, 2 hydraulic telescopic rod, 3 slide groove, 4 concave box, 5 groove, 6 middle arm, 7 roller, 8 connecting rod, 9 push rod, 10 large arm, 11 box, 12 motor, 13 screw rod, 14 nut, 15 slider, 16 long rod, 17 short rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4A new type of engineering machinery boom includes a boom 10 and a forearm 1. A box 11 is fixedly connected to the side wall of the boom 10. A screw 13 is rotatably connected in the box 11. A nut 14 is threadedly connected to the screw 13. A rotating mechanism for rotating the screw 13 is installed at the upper end of the box 11. The rotating mechanism includes a motor 12. The motor 12 is fixedly installed at the upper end of the box 11. The output shaft of the motor 12 is fixedly installed on the screw 13. It should be noted that when the motor 12 rotates forward, the nut 14 moves forward, the drum 7 rotates counterclockwise, and the angle between the boom 10 and the middle arm 6 becomes smaller. On the contrary, when the motor 12 rotates reversely, the angle between the boom 10 and the middle arm 6 becomes larger.

[0021] The nut 14 is fixedly connected with a push rod 9, the push rod 9 is rotatably connected with a connecting rod 8, the connecting rod 8 is rotatably connected with a roller 7, and the roller 7 is rotatably connected to the side wall of the big arm 10, and the side of the roller 7 away from the big arm 10 is fixedly connected with the middle arm 6, and a guide mechanism for guiding the nut 14 is installed in the box 11, and the guide mechanism includes two sliders 15, and two slide grooves 3 are provided on the inner side wall of the box 11, and each slider 15 is fixedly installed on the side wall of the nut 14, and the slider 15 slides in the adjacent slide groove 3. It should be noted that the width of the slide groove 3 is slightly larger than the width of the slider 15, so that the slider 15 can slide freely in the slide groove 3, and the nut can be prevented from deflecting.

[0022] The upper end of the boom 10 is fixedly connected with a concave box 4, and a power mechanism for moving the small arm 1 is installed on the concave box 4. The power mechanism includes a short rod 17 and a hydraulic telescopic rod 2. The short rod 17 is rotatably installed in the concave box 4, one end of the hydraulic telescopic rod 2 is fixedly installed on the short rod 17, and the other end of the hydraulic telescopic rod 2 is rotatably installed on the small arm 1. It should be noted that when the angle of the small arm 1 changes, the short rod 17 drives the hydraulic telescopic rod 2 to rotate in the concave box 4 to prevent damage to the components.

[0023] A steering mechanism for rotating the small arm is installed on the middle arm 6. The steering mechanism includes a long rod 16, which rotates in the middle arm 6, and the small arm 1 is fixedly installed on the long rod 16. A groove 5 is opened at the bottom end of the box body 11, and the push rod 9 slides in the groove 5.

[0024] When using this mechanical device, if the angle between the upper arm 10 and the middle arm 6 needs to be reduced, the motor 12 is started to rotate forward, driving the screw 13 to rotate forward, the nut 14 to move forward, and the push rod 9 to move forward, thereby driving the roller 7 to rotate counterclockwise through the connecting rod 8, and then the middle arm 6 rotates inward, so that the angle between the upper arm 10 and the middle arm 6 is reduced. If the angle between the upper arm 10 and the middle arm 6 needs to be increased, the motor 12 is started to rotate reversely, driving the screw 13 to rotate reversely, the nut 14 to move backward, and the push rod 9 to move backward, thereby driving the roller 7 to rotate clockwise through the connecting rod 8, and then the middle arm 6 rotates outward, so that the angle between the upper arm 10 and the middle arm 6 is increased.

[0025] At the same time, the hydraulic telescopic rod 2 moves forward, pushing the forearm 1 to rotate counterclockwise on the middle arm 6, so that the angle between the forearm 1 and the middle arm 6 becomes smaller, and vice versa, the angle between the forearm 1 and the middle arm 6 becomes larger.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel engineering machinery boom, comprising a boom (10) and a forearm (1), characterized in that: A box body (11) is fixedly connected to the side wall of the upper arm (10), a screw rod (13) is rotatably connected in the box body (11), a nut (14) is threadedly connected to the screw rod (13), a rotating mechanism for rotating the screw rod (13) is installed at the upper end of the box body (11), a push rod (9) is fixedly connected to the nut (14), a connecting rod (8) is rotatably connected to the push rod (9), a roller (7) is rotatably connected to the connecting rod (8), and the roller (7) is rotatably connected to the side wall of the upper arm (10), a middle arm (6) is fixedly connected to the side of the roller (7) away from the upper arm (10), a guide mechanism for guiding the nut (14) is installed in the box body (11), a concave box (4) is fixedly connected to the upper end of the upper arm (10), a power mechanism for moving the forearm (1) is installed on the concave box (4), and a steering mechanism for rotating the forearm (6) is installed on the middle arm (6).

2. A novel engineering machinery boom according to claim 1, characterized in that: The rotating mechanism comprises a motor (12), the motor (12) is fixedly mounted on the upper end of the box (11), and the output shaft of the motor (12) is fixedly mounted on the screw rod (13).

3. The novel engineering machinery boom according to claim 1 is characterized in that: The guide mechanism comprises two slide blocks (15), the inner side wall of the box body (11) is provided with two slide grooves (3), each of the slide blocks (15) is fixedly mounted on the side wall of the nut (14), and the slide blocks (15) slide in adjacent slide grooves (3).

4. The novel engineering machinery boom according to claim 1 is characterized in that: The power mechanism comprises a short rod (17) and a hydraulic telescopic rod (2); the short rod (17) is rotatably mounted in the concave box (4); one end of the hydraulic telescopic rod (2) is fixedly mounted on the short rod (17); and the other end of the hydraulic telescopic rod (2) is rotatably mounted on the forearm (1).

5. The novel engineering machinery boom according to claim 1 is characterized in that: The steering mechanism comprises a long rod (16), the long rod (16) is rotated in the middle arm (6), and the small arm (1) is fixedly mounted on the long rod (16).

6. The novel engineering machinery boom according to claim 1 is characterized in that: The bottom end of the box body (11) is provided with a groove (5), and the push rod (9) slides in the groove (5).

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