Crane fly jib mounting equipment with good stability

Abstract

The utility model relates to the technical field of engineering machinery, in particular to crane fly jib mounting equipment with good stability, which comprises a main jib and a fly jib positioned on one side of the main jib, mounting connecting forks distributed in bilateral symmetry are arranged at the tail of the fly jib, and mounting lugs matched with the mounting connecting forks are arranged at the head of the main jib. An adjusting mechanism matched with the auxiliary arm is arranged on one side of the main arm, a supporting cantilever is movably connected to the side, away from the auxiliary arm, of the main arm, a guide wheel is movably installed at the end of the supporting cantilever, and an electric capstan is fixedly installed at the tail of the side, away from the auxiliary arm, of the main arm. According to the crane fly jib mounting equipment with good stability, a fly jib is driven to move towards the head of a main jib through an adjusting mechanism, a mounting connecting fork at the near end is aligned with a mounting lug and hinged to the mounting lug through a plug pin, a supporting cantilever is unfolded through a first hydraulic rod, and after a cable on an electric capstan is arranged, the fly jib can be pulled to be unfolded through the electric capstan; the mounting of the fly jib is realized, and the overall operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a crane jib installation device with good stability. Background Technique

[0002] Cranes are widely used in the technical field of construction machinery. Cranes lift heavy objects through a boom and a steel wire rope wound around the main pulley of the boom. Based on different lifting requirements, the boom of a crane usually has a main boom and a jib. When the load is large and the lifting height is low, the main boom is usually used for lifting; when the load is small and the lifting height is high, the jib is used for lifting. When the tail of the jib is connected to the head of the main boom, the overall length of the crane boom is the sum of the lengths of the main boom and the jib, so the lifting height can be increased. However, due to the increased length and lower strength, it is suitable for lifting smaller loads.

[0003] The assembly connection between the jib and the main boom is usually formed by hinging the fork at the tail of the jib with the joint hole at the head of the main boom. When the jib is not working, the jib is retracted on the side or below the main boom; when the jib needs to work, the jib is deployed and installed at the head of the main boom. When installing the jib, usually the proximal fork is first aligned with the proximal joint hole, the proximal pin is inserted, and then the jib is swung along the proximal fork by manual pulling. After rotating 180° until the distal fork is aligned with the distal joint hole, the distal pin is inserted to achieve the positioning of the jib at the head of the main boom. The process of retracting the jib is exactly the opposite. During the installation or retraction of the jib, since it cannot be automated, the whole process requires manual dragging, which is time-consuming and laborious; due to the large influence of human factors, it is difficult for the jib to disengage from or return to the main boom, and it is not easy to align between each fork and the joint hole; due to the deflection problem of the jib, during the installation or retraction process, the stability of the jib is poor, and it is difficult to control the moving speed of the jib, there are certain safety hazards. For this reason, we propose a crane jib installation device with good stability to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a crane jib installation device with good stability, which solves the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A crane jib installation device with good stability, including a main boom and a jib located on one side of the main boom. The tail of the jib is provided with symmetrically distributed installation forks on the left and right. The head of the main boom is provided with installation ears that cooperate with the installation forks. One side of the main boom is provided with an adjustment mechanism that cooperates with the jib. The side of the main boom far from the jib is movably connected with a support cantilever, and a guide wheel is movably installed at the end of the support cantilever. The tail of the main boom on the side far from the jib is fixedly installed with an electric winch. A hydraulic rod I is arranged between the support cantilever and the main boom.

[0006] Preferably, the number of the adjusting mechanisms is two groups, and the two groups of adjusting mechanisms are mirror-symmetrically distributed on the upper and lower sides of the auxiliary arm. The adjusting mechanism is composed of two groups of actuating components, a hydraulic rod II and a transmission connecting rod.

[0007] Preferably, the transmission connecting rod is movably connected with the two groups of actuating components on the corresponding side, and the two groups of actuating components on the same side are linked and controlled through the transmission connecting rod. One end of the hydraulic rod II is hinged to the main arm, and the other end is hinged to the actuating component on the proximal side.

[0008] Preferably, the actuating component includes an adjusting arm, a mounting arm, a compression spring and a connecting sleeve. One end of the adjusting arm is hinged to the main arm, and the other end is welded with the mounting arm. The end of the mounting arm is clamped with the connecting sleeve, and the compression spring is movably sleeved outside the mounting arm.

[0009] Preferably, a connecting plug column matched with the connecting sleeve is welded on the auxiliary arm, and the connecting sleeve can be sleeved outside the connecting plug column.

[0010] Preferably, one end of the hydraulic rod I is hinged to the main arm, and the other end is hinged to the supporting cantilever. The hydraulic rod I can push the supporting cantilever to rotate around the connection point between the supporting cantilever and the main arm as the axis point.

[0011] Preferably, a lifting ring is welded at the tail of the auxiliary arm on the side far from the adjusting mechanism.

[0012] The utility model provides a crane auxiliary arm installation device with good stability, and has the following beneficial effects:

[0013] 1. For the crane auxiliary arm installation device with good stability, the adjusting mechanism drives the auxiliary arm to move towards the head of the main arm, aligns the proximal installation fork with the installation ear and is hinged through a pin. After the hydraulic rod I unfolds the supporting cantilever and arranges the cable on the electric winch, the electric winch can be used to pull the auxiliary arm to unfold, realizing the installation of the auxiliary arm. The overall operation is simple. In the installation process of the auxiliary arm, the first half is positioned by the adjusting mechanism, and the second half is positioned by the pin shaft, greatly improving the stability in the installation process.

[0014] 2. For the crane auxiliary arm installation device with good stability, the actuating components in the two groups of adjusting mechanisms push the auxiliary arm to move, improving the stability of the auxiliary arm in the installation process. Moreover, the actuating component and the auxiliary arm are connected through a sleeve that can be quickly disassembled and assembled, facilitating the combination, disassembly and assembly between the auxiliary arm and the actuating component, and further reducing the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the overall combination of the utility model;

[0016] Figure 2 It is a schematic structural diagram of the overall top view of the present utility model;

[0017] Figure 3 It is a schematic structural diagram of the auxiliary arm of the present utility model when it is unfolded;

[0018] Figure 4 It is a schematic structural diagram of the adjusting mechanism of the present utility model;

[0019] Figure 5 It is a schematic structural diagram of the auxiliary arm of the present utility model;

[0020] Figure 6 It is a schematic structural diagram of the execution component of the present utility model.

[0021] In the figure: 1, main arm; 2, auxiliary arm; 3, adjusting mechanism; 31, second hydraulic rod; 32, execution component; 321, adjusting arm; 322, mounting arm; 323, compression spring; 324, connecting sleeve; 33, transmission connecting rod; 4, connecting plug post; 5, mounting fork; 6, mounting ear; 7, first hydraulic rod; 8, support cantilever; 9, guide wheel; 10, electric winch. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Please refer to Figure 1 , 2 , 3, the present utility model provides a technical solution: a crane auxiliary arm installation device with good stability, including a main arm 1 and an auxiliary arm 2 located on one side of the main arm 1. There are symmetrically distributed mounting forks 5 on the tail of the auxiliary arm 2, and a mounting ear 6 cooperating with the mounting fork 5 is arranged at the head of the main arm 1. During the installation process of the auxiliary arm 2, the first half is positioned by the adjusting mechanism 3, and the second half is positioned by a pin shaft, greatly improving the stability during the installation process. An adjusting mechanism 3 cooperating with the auxiliary arm 2 is arranged on one side of the main arm 1. The adjusting mechanism 3 drives the auxiliary arm 2 to move towards the head of the main arm 1, aligns the proximal mounting fork 5 with the mounting ear 6 and is hinged by a pin. After the support cantilever 8 is unfolded and the cable on the electric winch 10 is laid out, the auxiliary arm 2 can be pulled to unfold by the electric winch 10, realizing the installation of the auxiliary arm 2. A support cantilever 8 is movably connected to the side of the main arm 1 away from the auxiliary arm 2, and a guide wheel 9 is movably installed at the end of the support cantilever 8. An electric winch 10 is fixedly installed at the tail of the main arm 1 on the side away from the auxiliary arm 2. The electric winch 10 is a prior art with a model of KCD. A first hydraulic rod 7 is arranged between the support cantilever 8 and the main arm 1. The support cantilever 8 is driven to rotate by the first hydraulic rod 7, and the support cantilever 8 is unfolded. The position of the cable can be changed through the guide wheel 9 at the end of the support cantilever 8.

[0024] Please refer to Figure 3 、 4 Figure 6, the number of adjusting mechanisms 3 is two groups, and the two groups of adjusting mechanisms 3 are mirror-symmetrically distributed on the upper and lower sides of the secondary boom 2. The position of the secondary boom 2 is adjusted by the two groups of adjusting mechanisms 3 to ensure the stability of the secondary boom 2 during the unfolding process. The adjusting mechanism 3 is composed of two groups of actuating components 32, a hydraulic rod two 31, and a transmission link 33. The hydraulic rod two 31 pushes the actuating component 32 to rotate around the connection point between the actuating component 32 and the main boom 1 as the pivot point, so as to drive the secondary boom 2 to move towards the head of the main boom 1, realizing the adjustment of the initial position of the secondary boom 2. The transmission link 33 is movably connected to the two groups of actuating components 32 on the corresponding side, and the two groups of actuating components 32 on the same side are linked and controlled by the transmission link 33. When the hydraulic rod two 31 pushes the actuating component 32 at the tail of the secondary boom 2 to rotate, the actuating component 32 at the head of the secondary boom 2 can be driven to rotate through the transmission of the transmission link 33. The stable movement of the secondary boom 2 is realized through the cooperation of several actuating components 32. One end of the hydraulic rod two 31 is hinged to the main boom 1, and the other end is hinged to the actuating component 32 on the near side. The hydraulic rod two 31 is a prior art, and the model is XYZ-20-1200-F.

[0025] The actuating component 32 includes an adjusting arm 321, a mounting arm 322, a compression spring 323, and a connecting sleeve 324. One end of the adjusting arm 321 is hinged to the main boom 1, and the other end is welded with the mounting arm 322. When the actuating component 32 and the secondary boom 2 are combined, the end of the mounting arm 322 abuts against the end of the connecting plug 4, thereby realizing the stable restriction of the secondary boom 2. The end of the mounting arm 322 is clamped with the connecting sleeve 324. By sleeving the connecting sleeve 324 outside the connecting plug 4, the connection between the actuating component 32 and the secondary boom 2 can be realized, so as to ensure that the actuating component 32 can drive the secondary boom 2 to move. The outside of the mounting arm 322 is movably sleeved with a compression spring 323. The compression spring 323 applies an elastic force to the connecting sleeve 324 to ensure the stability of the connecting sleeve 324 after being sleeved outside the connecting plug 4.

[0026] Please refer to Figure 5 Figure 7, a connecting plug 4 that cooperates with the connecting sleeve 324 is welded on the secondary boom 2. The connecting sleeve 324 can be sleeved outside the connecting plug 4. By sleeving the connecting sleeve 324 outside the connecting plug 4, the connection between the actuating component 32 and the secondary boom 2 can be realized, so as to ensure that the actuating component 32 can drive the secondary boom 2 to move.

[0027] Please refer to Figure 3, one end of the first hydraulic rod 7 is hinged to the main arm 1, and the other end is hinged to the support cantilever 8. The first hydraulic rod 7 is a prior art with a model of XYZ-20-1200-F. The first hydraulic rod 7 can push the support cantilever 8 to rotate around the connection point between the support cantilever 8 and the main arm 1 as the pivot point. By driving the support cantilever 8 to rotate with the first hydraulic rod 7, the support cantilever 8 can be unfolded. The position of the cable can be changed by the guide wheel 9 at the end of the support cantilever 8. A lifting ring is welded to the tail of the side of the auxiliary arm 2 away from the adjusting mechanism 3. After winding the cable outside the electric winch 10 around the guide wheel 9 and tying the cable to the lifting ring, when the electric winch 10 winds up the cable, the auxiliary arm 2 can be pulled to be unfolded.

[0028] In summary, for the installation device of the auxiliary arm of the crane with good stability, when in use, when the auxiliary arm 2 needs to be installed, start the second hydraulic rod 31 in the two groups of adjusting mechanisms 3 to push the corresponding side of the actuator assembly 32 to rotate. The two actuator assemblies 32 on the corresponding side are linked and controlled through the transmission connecting rod 33. The actuator assembly 32 rotates around the position connected to the main arm 1 as the pivot point, driving the auxiliary arm 2 to move towards the head of the main arm 1. After the main arm 1 moves, at this time, the installation fork 5 on one side of the auxiliary arm 2 is clamped in the corresponding installation ear 6, and the installation fork 5 and the installation ear 6 on one side are connected by a pin. Start the first hydraulic rod 7 to drive the support cantilever 8 to move. After the support cantilever 8 is unfolded in place, wind the cable on the electric winch 10 around the guide wheel 9 and tie one end of the cable to the lifting ring on one side of the auxiliary arm 2. Then push the connecting sleeve 324 in the adjusting mechanism 3 to move outward to disconnect the connection between the adjusting mechanism 3 and the auxiliary arm 2. Start the electric winch 10 to wind up the cable, so that the auxiliary arm 2 rotates around the pin on one side to unfold the auxiliary arm 2. After the auxiliary arm 2 is unfolded in place, connect the installation fork 5 and the installation ear 6 on the other side by a pin to complete the installation of the auxiliary arm 2; when folding the auxiliary arm 2, keep the main arm 1 in a vertical state and operate in reverse to fold the auxiliary arm 2 back to its original position.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A crane jib installation device with good stability, comprising a main boom (1) and a jib (2) located on one side of the main boom (1), characterized in that: The tail of the auxiliary arm (2) is provided with mounting forks (5) symmetrically distributed left and right. The head of the main arm (1) is provided with mounting ears (6) that cooperate with the mounting forks (5). One side of the main arm (1) is provided with an adjusting mechanism (3) that cooperates with the auxiliary arm (2). A support cantilever (8) is movably connected to the side of the main arm (1) away from the auxiliary arm (2), and a guide wheel (9) is movably installed at the end of the support cantilever (8). An electric winch (10) is fixedly installed at the tail of the side of the main arm (1) away from the auxiliary arm (2). A first hydraulic rod (7) is provided between the support cantilever (8) and the main arm (1).

2. The installation device for the auxiliary boom of a crane with good stability according to claim 1, characterized in that: The number of the adjusting mechanisms (3) is two groups, and the two groups of adjusting mechanisms (3) are mirror-symmetrically distributed on the upper and lower sides of the auxiliary arm (2). The adjusting mechanism (3) is composed of two groups of actuating components (32), a second hydraulic rod (31), and a transmission connecting rod (33).

3. The crane jib installation device with good stability according to claim 2, characterized in that: The transmission connecting rod (33) is movably connected to the two groups of actuating components (32) on the corresponding side. The two groups of actuating components (32) on the same side are linked and controlled through the transmission connecting rod (33). One end of the second hydraulic rod (31) is hinged to the main arm (1), and the other end is hinged to the actuating component (32) on the near side.

4. The crane auxiliary boom installation device with good stability according to claim 3, characterized in that: The actuating component (32) includes an adjusting arm (321), a mounting arm (322), a compression spring (323), and a connecting sleeve (324). One end of the adjusting arm (321) is hinged to the main arm (1), and the other end is welded with the mounting arm (322). The end of the mounting arm (322) is clamped with the connecting sleeve (324), and a compression spring (323) is movably sleeved outside the mounting arm (322).

5. The crane jib installation device with good stability according to claim 4, characterized in that: A connecting plug post (4) that cooperates with the connecting sleeve (324) is welded on the auxiliary arm (2), and the connecting sleeve (324) can be sleeved outside the connecting plug post (4).

6. The crane jib installation device with good stability according to claim 1, characterized in that: One end of the first hydraulic rod (7) is hinged to the main arm (1), and the other end is hinged to the support cantilever (8). The first hydraulic rod (7) can push the support cantilever (8) to rotate around the connection point between the support cantilever (8) and the main arm (1) as the axis point.

7. The crane jib installation equipment with good stability according to claim 1, characterized in that: A lifting ring is welded at the tail of the side of the auxiliary arm (2) away from the adjusting mechanism (3).

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