Rear mechanical power-assisted cargo boom structure

Abstract

The utility model relates to the technical field of cargo booms, and particularly discloses a rear mechanical power-assisted cargo boom structure which comprises a bearing barrel, a rotating cylinder, a rotating seat barrel, a cylindrical arm, a column sleeve arm, a control assembly and a telescopic arm, the rotating cylinder is fixed inside the bearing barrel, and a rotating table of the rotating cylinder is fixedly connected with the rotating seat barrel through a middle seat; the cylindrical arm is fixed to the top of the rotating seat cylinder, the column sleeve arm is fixed to the top of the cylindrical arm, the telescopic arm is sleeved with the column sleeve arm, and a first telescopic air cylinder driving the telescopic arm to move transversely is fixedly arranged on one side of the exterior of the column sleeve arm. According to the technical scheme, rotation of the column sleeve arm is achieved through the rotating air cylinder, transverse movement of the telescopic arm is achieved through the first telescopic air cylinder, and therefore the effect that the output distance and the angle of the rear portion of the cargo boom can be adjusted is achieved, and the function that the mechanical power-assisted cargo boom lifts heavy objects in a multidirectional power-assisted mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane arms, in particular to a rear-mounted mechanical power-assisted crane arm structure. Background Art

[0002] Mechanically assisted boom is a kind of equipment used in logistics, industrial manufacturing and construction. It can lift, hoist and transport large objects through mechanical assistance. It usually consists of a fixed base, a rotating and telescopic boom, a hook and a control system. The main advantage of a mechanically assisted boom is that it can withstand high-strength and high-weight objects, and it is easy to operate, safe and reliable. Compared with the traditional manual lifting method, the mechanically assisted boom can improve work efficiency and reduce manpower input. At present, when the boom is extended and retracted, the rear suspended boom lacks an auxiliary support structure, which limits the weight of the heavy objects grabbed by the front grab head. If the weight exceeds the bearing weight, the rear suspended boom will bend and deform. In addition, the output distance and angle of the rear part of the boom are not easy to adjust, which urgently needs to be improved. Therefore, we propose a rear mechanically assisted boom structure. Utility Model Content

[0003] The purpose of the utility model is to provide a rear-mounted mechanical booster boom structure, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rear-mounted mechanical booster boom structure, comprising a load-bearing cylinder, a rotating cylinder, a rotating seat cylinder, a column arm, a column sleeve arm, a control assembly and a telescopic arm, wherein the rotating cylinder is fixed inside the load-bearing cylinder, the rotating platform of the rotating cylinder is fixedly connected to the rotating seat cylinder through an intermediate seat, the column arm is fixed to the top of the rotating seat cylinder, the column sleeve arm is fixed to the top of the column arm, the telescopic arm is sleeved inside the column sleeve arm, and a telescopic cylinder for driving the telescopic arm to move horizontally is fixedly arranged on one side of the outside of the column sleeve arm;

[0005] A stepped groove is provided in the middle of the cylindrical arm, and the stepped groove includes a groove body 1 and a groove body 2 which are interconnected. A sliding block is slidably embedded in the groove body 1, and the sliding block is connected to the telescopic arm through a crank structure. A limit seat is embedded in the groove body 2, and the surfaces of the limit seat and the sliding block are integrally formed with tooth rows. A telescopic cylinder 2 for driving the limit seat to move is fixedly provided on the outside of the cylindrical arm and on the side facing away from the stepped groove.

[0006] As a preferred implementation of the technical solution of the present application, the middle seat sleeve is arranged inside the rotating seat cylinder, a plurality of matching holes are arranged around the surface of the middle seat, and a screw rod which is embedded and matched with the matching holes is threadedly connected to the surface of the rotating seat cylinder.

[0007] As a preferred implementation of the technical solution of the present application, the control component is fixed to the outer wall surface of the load-bearing cylinder, a number of triangular reinforcing ribs are fixedly arranged around the outer wall surface of the load-bearing cylinder, and a base is fixedly arranged at the bottom of the load-bearing cylinder.

[0008] As a preferred implementation scheme of the technical solution of the present application, the crank structure includes an articulated seat 1, an articulated rod and an articulated seat 2, the articulated seat 1 is fixed to the surface of the slider, the articulated seat 2 is fixed to the bottom surface of the telescopic arm, and both the articulated seat 1 and the articulated seat 2 are hinged to the articulated rod through an axle pin.

[0009] As a preferred implementation of the technical solution of the present application, the tooth row of the limiting seat is arranged opposite to the tooth row of the sliding block.

[0010] As a preferred implementation of the technical solution of the present application, convex strips are integrally formed on both sides of the inner wall of the groove body, and sliding grooves that are inlaid and slidably matched with the convex strips are provided on both sides of the outside of the slider.

[0011] As a preferred implementation of the technical solution of the present application, a support slip ring is integrally formed on the outside of the rotating seat cylinder, and the support slip ring is supported on the top surface of the load-bearing cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The technical solution of the present application realizes the rotation of the column sleeve arm through a rotating cylinder, and realizes the lateral movement of the telescopic arm through a telescopic cylinder, thereby achieving the effect of adjustable output distance and angle of the rear part of the lifting arm, and realizing the function of mechanically assisted lifting of heavy objects in all directions.

[0014] 2. The technical solution of the present application realizes the engagement, limiting and separation of the limit seat and the slider through the telescopic cylinder 2, thereby cooperating with the articulated rod to provide auxiliary support for the extended telescopic arm, thereby improving the supporting strength of the telescopic arm and the load-bearing capacity of the mechanical assisted lifting arm structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a three-dimensional diagram of a rear-mounted mechanical booster boom structure of the utility model;

[0017] Figure 2 This is a front view of a rear-mounted mechanical booster boom structure of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the load-bearing cylinder of the utility model;

[0019] Figure 4 It is a cross-sectional view of the column sleeve arm and the columnar arm of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the rotary cylinder of the utility model.

[0021] In the figure: 1. load-bearing cylinder; 2. control assembly; 3. screw; 4. rotating seat cylinder; 5. telescopic cylinder 2; 6. cylindrical arm; 7. telescopic cylinder 1; 8. column sleeve arm; 9. telescopic arm; 10. articulated seat 2; 11. articulated rod; 12. articulated seat 1; 13. stepped groove; 1301, groove body 1; 1302, groove body 2; 1303, convex strip; 14. rotating cylinder; 15. intermediate seat; 16. matching hole; 17. supporting slip ring; 18. slider; 1801, slide groove; 19. limit seat. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1, as Figure 1-5 As shown, the utility model provides a technical solution: a rear-mounted mechanical booster boom structure, including a load-bearing cylinder 1, a rotating cylinder 14, a rotating seat cylinder 4, a columnar arm 6, a column sleeve arm 8, a control assembly 2 and a telescopic arm 9, the rotating cylinder 14 is fixed inside the load-bearing cylinder 1, the rotating platform of the rotating cylinder 14 is fixedly connected to the rotating seat cylinder 4 through an intermediate seat 15, the columnar arm 6 is fixed to the top of the rotating seat cylinder 4, the column sleeve arm 8 is fixed to the top of the columnar arm 6, the telescopic arm 9 is sleeved inside the column sleeve arm 8, and a telescopic cylinder 7 for driving the telescopic arm 9 to move horizontally is fixedly arranged on one side of the outside of the column sleeve arm 8;

[0024] A stepped groove 13 is provided in the middle of the cylindrical arm 6, and the stepped groove 13 includes a groove body 1301 and a groove body 1302 which are interconnected. A slider 18 is slidably embedded in the groove body 1301, and the slider 18 is connected to the telescopic arm 9 through a crank structure. A limit seat 19 is embedded in the groove body 1302, and the surfaces of the limit seat 19 and the slider 18 are integrally formed with tooth rows. A telescopic cylinder 2 5 for driving the limit seat 19 to move is fixedly provided on the outside of the cylindrical arm 6 and on the side away from the stepped groove 13.

[0025] In a specific embodiment of the utility model, the rotary cylinder 14 is provided with two independent chambers, each chamber is inlaid with a piston, the inner side of the piston is provided with a tooth groove, and a gear is rotatably provided at the interval between the two independent chambers, and the gears are respectively engaged with the tooth grooves inside the two pistons, and each independent chamber is communicated with an electromagnetic reversing valve, and the electromagnetic reversing valve is inlet at one end and exhaust at the other end, so that the two pistons can move in opposite directions, thereby driving the gear to rotate, and a rotating disk is connected to the top of the gear, and the rotating disk is connected to the middle seat 15 by bolts, and the middle seat 15 is connected to the rotating seat cylinder 4 by They are connected with a screw rod 3, so that the rotating cylinder 14 controls the rotating seat cylinder 4 to rotate. The telescopic cylinder 1 7 and the telescopic cylinder 2 5 realize the telescopic control of the cylinder push rod through the solenoid valve and the high-pressure air source. The solenoid valves of the rotating cylinder 14, the telescopic cylinder 1 7 and the telescopic cylinder 2 5 are all controlled by the control component 2. The push rod of the telescopic cylinder 2 5 passes through the cylindrical arm 6 and is connected to the limit seat 19. The groove body 2 1302 can accommodate the lateral movement of the limit seat 19, but limit its vertical movement. Therefore, when the limit seat 19 and the slider 18 are engaged and limited, it can limit the slider 18 from moving vertically.

[0026] In the preferred technical solution, the intermediate seat 15 is sleeved inside the rotating seat cylinder 4, and a plurality of matching holes 16 are arranged around the surface of the intermediate seat 15. The surface of the rotating seat cylinder 4 is threadedly connected with a screw 3 which is embedded and matched with the matching holes 16. The intermediate seat 15 and the rotating seat cylinder 4 are connected by the screw 3, so that the rotating cylinder 14 controls the rotating seat cylinder 4 to rotate.

[0027] In the preferred technical solution, the control component 2 is fixed to the outer wall surface of the load-bearing cylinder 1, and a number of triangular reinforcing ribs are fixedly arranged around the outer wall surface of the load-bearing cylinder 1. A base is fixedly arranged at the bottom of the load-bearing cylinder 1 to improve the strength between the load-bearing cylinder 1 and the base.

[0028] In the preferred technical solution, the crank structure includes an articulated seat 12, an articulated rod 11 and an articulated seat 2 10. The articulated seat 12 is fixed to the surface of the slider 18, and the articulated seat 2 10 is fixed to the bottom surface of the telescopic arm 9. The articulated seat 12 and the articulated seat 2 10 are both hinged to the articulated rod 11 through an axle pin. During the movement of the telescopic arm 9, the limit seat 19 and the slider 18 are in a separated state. At this time, the articulated rod 11 can pull the slider 18 to move vertically along the groove body 1301, so that the crank structure adapts to the position movement of the telescopic arm 9.

[0029] In the preferred technical solution, the tooth row of the limit seat 19 is arranged opposite to the tooth row of the slider 18, and the tooth row of the limit seat 19 is meshed with the tooth row of the slider 18, which can limit the slider 18 from vertical movement, thereby cooperating with the articulated rod 11 to provide auxiliary support for the extended telescopic arm 9, thereby improving the supporting strength of the telescopic arm 9.

[0030] In the preferred technical solution, both sides of the inner wall of the groove body 1301 are integrally formed with convex strips 1303, and both sides of the outer side of the slider 18 are provided with sliding grooves 1801 that are inlaid and slidably matched with the convex strips 1303, which can limit the slider 18 to only vertical straight sliding in the groove body 1301.

[0031] In the preferred technical solution, a support slip ring 17 is integrally formed on the outside of the rotating seat cylinder 4, and the support slip ring 17 is supported on the top surface of the load-bearing cylinder 1. The support slip ring 17 is used to support the rotating seat cylinder 4, and a wear-resistant coating is provided on the bottom surface of the support slip ring 17 to ensure the normal rotation of the rotating seat cylinder 4.

[0032] Working principle: by taking in air at one end and exhausting air at the other end of the electromagnetic reversing valve, the two pistons can move in opposite directions, thereby driving the gear to rotate. A rotating disk is connected to the top of the gear, and the rotating disk is connected to the middle seat 15 by bolts, and the middle seat 15 is connected to the rotating seat cylinder 4 by a screw 3, so that the rotating cylinder 14 controls the rotating seat cylinder 4 to rotate. When the push rod of the telescopic cylinder 7 is extended, the telescopic arm 9 can be controlled to slide inside the column sleeve arm 8, so that the telescopic arm 9 moves laterally. During the movement of the telescopic arm 9, the limit seat 19 and the slider 18 are in a separated state. At this time, the articulated rod 11 can pull the slider 18 to move vertically along the groove body 1301, so that the crank structure adapts to the position movement of the telescopic arm 9. When the position of the telescopic arm 9 is determined, by controlling the push rod of the telescopic cylinder 25 to extend, the tooth row of the limit seat 19 is meshed with the tooth row of the slider 18, which can limit the slider 18 from moving vertically, thereby cooperating with the articulated rod 11 to provide auxiliary support for the extended telescopic arm 9, thereby improving the support strength of the telescopic arm 9.

Claims

1. A rear-mounted mechanical booster boom structure, characterized in that: It comprises a load-bearing cylinder (1), a rotating cylinder (14), a rotating seat cylinder (4), a column arm (6), a column sleeve arm (8), a control component (2) and a telescopic arm (9), wherein the rotating cylinder (14) is fixed inside the load-bearing cylinder (1), the rotating platform of the rotating cylinder (14) is fixedly connected to the rotating seat cylinder (4) via an intermediate seat (15), the column arm (6) is fixed to the top of the rotating seat cylinder (4), the column sleeve arm (8) is fixed to the top of the column arm (6), the telescopic arm (9) is sleeved inside the column sleeve arm (8), and a telescopic cylinder (7) for driving the telescopic arm (9) to move laterally is fixedly arranged on one side of the outside of the column sleeve arm (8); A stepped groove (13) is provided in the middle of the cylindrical arm (6), the stepped groove (13) comprising a groove body 1 (1301) and a groove body 2 (1302) which are interconnected, a slider (18) being embedded and slidably arranged inside the groove body 1 (1301), the slider (18) being connected to the telescopic arm (9) via a crank structure, a limit seat (19) being embedded and arranged inside the groove body 2 (1302), the surfaces of the limit seat (19) and the slider (18) being integrally formed with tooth rows, and a telescopic cylinder 2 (5) for driving the limit seat (19) to move is fixedly arranged outside the cylindrical arm (6) and on a side away from the stepped groove (13) 2. A rear-mounted mechanically assisted boom structure according to claim 1, characterized in that: The intermediate seat (15) is sleeved inside the rotating seat cylinder (4); a plurality of matching holes (16) are arranged around the surface of the intermediate seat (15); and a screw rod (3) which is embedded and matched with the matching holes (16) is threadedly connected to the surface of the rotating seat cylinder (4).

3. The rear-mounted mechanically assisted boom structure according to claim 1, characterized in that: The control assembly (2) is fixed to the outer wall surface of the load-bearing cylinder (1); a plurality of triangular reinforcing ribs are fixedly arranged around the outer wall surface of the load-bearing cylinder (1); and a base is fixedly arranged at the bottom of the load-bearing cylinder (1).

4. The rear-mounted mechanically assisted boom structure according to claim 1, characterized in that: The crank structure comprises an articulated seat 1 (12), an articulated rod (11) and an articulated seat 2 (10); the articulated seat 1 (12) is fixed to the surface of the slider (18); the articulated seat 2 (10) is fixed to the bottom surface of the telescopic arm (9); and the articulated seat 1 (12) and the articulated seat 2 (10) are both articulated to the articulated rod (11) via an axle pin.

5. The rear-mounted mechanically-assisted boom structure according to claim 1, characterized in that: The tooth row of the limiting seat (19) is arranged opposite to the tooth row of the slider (18).

6. The rear-mounted mechanically assisted boom structure according to claim 1, characterized in that: Both sides of the inner wall of the groove body (1301) are integrally formed with convex strips (1303), and both sides of the outer side of the sliding block (18) are provided with sliding grooves (1801) that are embedded and slidably matched with the convex strips (1303).

7. The rear-mounted mechanically assisted boom structure according to claim 1, characterized in that: A support slip ring (17) is integrally formed on the outside of the rotating seat cylinder (4), and the support slip ring (17) is supported on the top surface of the load-bearing cylinder (1).

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