Floor mounted four-jib boom

Abstract

The utility model discloses a seat ground formula four swing arm embrace pole, including base and placing frame, the outer wall of base is provided with four groups of placing frame of equal interval, the inside of placing frame all movably seted up with third hydraulic rod, the output all of third hydraulic rod installs third push arm, the one end of third push arm away from third hydraulic rod all is provided with hinged axle, the inside of placing frame of third hydraulic rod one side all is provided with support leg, the one end of support leg close to placing frame all is provided with pin shaft, and support leg passes through pin shaft and placing frame swing joint, and third push arm passes through hinged axle and support leg swing joint. The utility model not only realized the stable support of multiple point contact ground and the automatic lifting adjustment embrace pole's height, the convenient location fixed and reduced traditional adjustment embrace pole height need to frequently dismount steel wire rope's step to the installation frame of bottom end, and furthermore, improved the convenience of embrace pole lifting height.

Description

Technical Field

[0001] This utility model relates to the field of rocker arm pole technology, specifically a ground-mounted four-rocker arm pole. Background Technology

[0002] A ground-mounted rocker arm gantry crane is a type of lifting machinery commonly used in the power industry for tower erection. After the gantry crane is erected and straightened on the ground at the center of the transmission tower, temporary guy wires are installed. The upper rocker arm of the gantry crane is used to elevate the tower to a certain height. Then, using the tower body as a support frame, the main gantry crane is lifted using an inverted method. The remaining sections of the gantry crane are then connected to the lower part of the gantry crane until the entire gantry crane and tower are assembled. Because the gantry crane is ground-mounted at the center of the tower structure, it is called a ground-mounted rocker arm gantry crane. Traditional rocker arm gantry cranes often require the bottom frame to be connected and fixed to the tower with steel wire ropes to ensure the stability of the gantry crane during use. However, when a higher elevation is needed, the steel wire ropes must be removed, which is inconvenient. To improve this situation, a ground-mounted four-rocker arm gantry crane has been proposed.

[0003] As disclosed in the authorization announcement number CN220011928U, a ground-mounted four-rocker arm mast includes a base, a pole body, a lifting sleeve, and a mast. The base is fixed to the ground foundation, the pole body is fixed to the base, the lifting sleeve is fixedly installed on the base, the lifting sleeve is located on the outside of the pole body, a base section is fixed to the top of the pole body, a slewing support is fixed to the top of the base section, a rocker arm base is fixed to the top of the slewing support, a mast is fixed to the top of the rocker arm base, and four rocker arms are fixed around the rocker arm base. The rocker arms are equipped with lifting ropes, and each of the four rocker arms is equipped with a ground-level guy line.

[0004] Although it achieves lifting with a single rocker arm and the other two anchored to the tower legs, the lifting weight is balanced by using lifting ropes to anchor the opposite rocker arm to the ground, and the mast part at the head of the rocker arm is stabilized. This utility model of the gantry crane can be lifted manually using a lifting frame or by using the tower legs for rocker arm gantry crane lifting;

[0005] However, it does not solve the problems that existing rocker arm gantry cranes are not conducive to providing stable support through multiple points of ground contact and automatic lifting and adjustment of the gantry crane height, nor to limiting and fixing the bottom mounting frame and reducing the need for frequent disassembly of the wire rope when adjusting the gantry crane height, thus affecting the convenience of raising the gantry crane height. Utility Model Content

[0006] The purpose of this utility model is to provide a ground-mounted four-rocker arm pole to solve the problems mentioned in the background art, such as the rocker arm pole not being convenient for providing stable support through multiple points of ground contact and for automatically raising and adjusting the pole height, the difficulty in limiting and fixing the bottom mounting frame, and the need to frequently disassemble the wire rope to adjust the pole height, which affects the convenience of raising the pole height.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a floor-mounted four-rocker arm support, comprising a base and a placement frame. Four sets of placement frames are equally spaced on the outer wall of the base. A third hydraulic rod is movably mounted inside each placement frame. A third push arm is mounted on the output end of each third hydraulic rod. A hinge shaft is provided at the end of each third push arm away from the third hydraulic rod. A support leg is provided inside each placement frame on one side of the third hydraulic rod. A pin is provided at the end of each support leg near the placement frame, and the support leg is movably connected to the placement frame via the pin. The third push arm is movably connected to the support leg via the hinge shaft. A stabilizing block is provided at the end of each support leg away from the placement frame. A connecting shaft is provided at the top of each stabilizing block, and the stabilizing block is movably connected to the support leg via the connecting shaft.

[0008] Preferably, two sets of second hydraulic rods are symmetrically arranged on the side wall of the base, and a second push arm is installed at the output end of each of the second hydraulic rods.

[0009] Preferably, the top of the base is provided with multiple sets of mounting brackets at equal intervals, and the mounting brackets are arranged vertically.

[0010] Preferably, each of the mounting brackets has symmetrically arranged plug-in posts at its bottom end, and each plug-in post has a pin hole on its surface, and the second push arm can be inserted into the pin hole.

[0011] Preferably, a first hydraulic rod is movably mounted on the top of the base on both sides of the mounting bracket, a first push arm is mounted on the output end of the first hydraulic rod, a support frame is provided on the top of the first push arm, and the support frame extends into the interior of a set of mounting brackets.

[0012] Preferably, the top of the mounting bracket is equipped with an extended section of the support rod, and four sets of rocker arm bodies are provided on the side wall at equal intervals at the bottom of the extended section of the support rod. Each rocker arm body is provided with a movable shaft at the end near the extended section of the support rod, and the rocker arm body is movably connected to the extended section of the support rod through the movable shaft.

[0013] Preferably, four sets of first fixed pulleys with equal spacing are provided on the side wall at the top of the extended section of the support pole, and a second fixed pulley is provided at the end of the rocker arm body away from the extended section of the support pole.

[0014] Preferably, the top of each rocker arm body is provided with a limiting steel wire rope, and the limiting steel wire rope extends to the surface of the first fixed pulley, and the limiting steel wire rope is slidably connected to the first fixed pulley.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the rocker arm not only realizes multi-point contact with the ground to provide stable support and automatically lifts and adjusts the height of the pole, but also facilitates the limiting and fixing of the bottom mounting frame and reduces the steps of frequently disassembling the wire rope required for adjusting the height of the pole in the traditional way, and improves the convenience of lifting the pole.

[0016] (1) The third hydraulic rod drives the third push arm to move, and the third push arm drives the support leg to rotate around the pin shaft through the hinge shaft. The placement frame provides support for the third hydraulic rod and the support leg. The support leg drives the stabilizing block to rotate through the connecting shaft so that the stabilizing block contacts the ground. Multiple sets of support legs provide stable support for the base. The mounting bracket is installed on the top of the base. The installation method is to insert the plug into the inside of the base. The surface of the base is provided with multiple sets of plug holes. The second hydraulic rod drives the second push arm to move and insert the second push arm into the inside of the pin hole to limit and fix the plug in the inside of the base, so that the bottom mounting bracket is installed on the base. Then, multiple sets of mounting brackets are inserted and stacked in a top-to-bottom order. Bolts are used to fix two adjacent sets of mounting brackets together. The limiting wire rope is connected to the winch. By operating the winch, the limiting wire rope is wound up and down. With the assistance of the first fixed pulley and under the action of gravity, the rocker arm body rotates around the movable shaft, so that the rocker arm body, the extended section of the jib, and the limiting wire rope form a stable triangular structure. The included angle between the rocker arm body and the extended section of the jib must not exceed 90 degrees. Then, the hoisting wire rope is passed through the second fixed pulley. One end of the hoisting wire rope is connected to the object to be hoisted, and the other end is connected to the winch. The winch winds up the hoisting wire rope, thereby hoisting the object to be hoisted to the installation height. Then, it is assembled in sequence to complete the assembly of the middle and lower parts of the tower. This achieves multi-point contact with the ground to provide stable support and facilitates the limiting and fixing of the bottom mounting frame.

[0017] (2) As the tower height increases, the height of the gantry also needs to be adjusted. The second hydraulic rod is opened in reverse, and the second hydraulic rod drives the second push arm to retract, pulling the second push arm out from the inside of the plug-in column. The first hydraulic rod drives the first push arm to move, and the first push arm drives the bearing frame to move upward. The bearing frame drives multiple sets of mounting frames to move upward, leaving space at the bottom. Then, the new mounting frame is placed at the bottom, thereby increasing the overall height of the gantry. This realizes automatic lifting and adjustment of the gantry height, reducing the need for frequent disassembly of the wire rope required for traditional gantry height adjustment, and improving the convenience of gantry height lifting. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the base of this utility model;

[0021] Figure 4 This is a side sectional view of the base of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the plug-in post of this utility model.

[0023] In the diagram: 1. Base; 2. Mounting bracket; 3. Rocker arm body; 4. Extended section of the support rod; 5. Movable shaft; 6. Limiting wire rope; 7. First fixed pulley; 8. First hydraulic rod; 9. First push arm; 10. Second fixed pulley; 11. Placement frame; 12. Second hydraulic rod; 13. Third hydraulic rod; 14. Third push arm; 15. Hinge shaft; 16. Support leg; 17. Pin shaft; 18. Stabilizing block; 19. Insertion post; 20. Pin hole; 21. Second push arm; 22. Connecting shaft; 23. Bearing frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-5 This utility model provides an embodiment of a four-rocker arm support, including a base 1 and a placement frame 11. Four sets of placement frames 11 are provided at equal intervals on the outer wall of the base 1. A third hydraulic rod 13 is movably installed inside each placement frame 11. A third push arm 14 is installed at the output end of each third hydraulic rod 13. A hinge shaft 15 is provided at the end of each third push arm 14 away from the third hydraulic rod 13. A support leg 16 is provided inside each placement frame 11 on the side of the third hydraulic rod 13. A pin 17 is provided at the end of each support leg 16 near the placement frame 11. The support leg 16 is movably connected to the placement frame 11 through the pin 17. The third push arm 14 is movably connected to the support leg 16 through the hinge shaft 15. A stabilizing block 18 is provided at the end of each support leg 16 away from the placement frame 11. A connecting shaft 22 is provided at the top of each stabilizing block 18. The stabilizing block 18 is movably connected to the support leg 16 through the connecting shaft 22.

[0026] Two sets of second hydraulic rods 12 are symmetrically arranged on the side wall of the base 1, and a second push arm 21 is installed at the output end of each of the second hydraulic rods 12.

[0027] When using this rocker arm, the base 1 is moved to the center of the tower base. The base 1 is made of concrete. The third hydraulic rod 13 is opened, which drives the third push arm 14 to move. The third push arm 14 drives the support leg 16 to rotate around the pin 17 via the hinge shaft 15. The placement frame 11 provides support for the third hydraulic rod 13 and the support leg 16. The support leg 16 drives the stabilizing block 18 to rotate via the connecting shaft 22, so that the stabilizing block 18 contacts the ground. Multiple sets of support legs 16 provide stable support for the base 1. The mounting bracket 2 is installed on the top of the base 1. The installation method is to insert the plug post 19 into the interior of the base 1. The surface of the base 1 is provided with multiple sets of insertion holes. The second hydraulic rod 12 is opened, which drives the second push arm 21 to move. The second push arm 21 is inserted into the pin hole 20 to limit and fix the plug post 19 inside the base 1, thereby installing the bottom mounting bracket 2. On the base 1, multiple sets of mounting frames 2 are then inserted and stacked in a vertical order. Two adjacent sets of mounting frames 2 are fixedly connected with bolts. The limiting wire rope 6 is connected to the winch. The winch is operated to wind up and unwind the limiting wire rope 6. With the assistance of the first fixed pulley 7 and under the action of gravity, the rocker arm body 3 rotates around the movable shaft 5, so that the rocker arm body 3, the extended section of the jib 4, and the limiting wire rope 6 form a stable triangular structure. The included angle between the rocker arm body 3 and the extended section of the jib 4 shall not exceed 90 degrees. Then, the hoisting wire rope is passed through the second fixed pulley 10. One end of the hoisting wire rope is connected to the object to be hoisted, and the other end is connected to the winch. The winch winds up the hoisting wire rope to hoist the object to be hoisted to the installation height. Then, the object is assembled in sequence to complete the assembly of the middle and lower parts of the tower. This achieves multi-point contact with the ground to provide stable support and facilitates the limiting and fixing of the bottom mounting frame.

[0028] The top of the base 1 is provided with multiple sets of mounting brackets 2 at equal intervals, and the mounting brackets 2 are arranged vertically.

[0029] The bottom of the mounting bracket 2 is symmetrically provided with plug-in posts 19, and the surface of each plug-in post 19 is provided with pin holes 20, and the second push arm 21 can be inserted into the inside of the pin holes 20.

[0030] The top of the base 1 on both sides of the mounting bracket 2 is movably mounted with a first hydraulic rod 8. The output end of the first hydraulic rod 8 is mounted with a first push arm 9. The top of the first push arm 9 is provided with a support frame 23, and the support frame 23 extends into the interior of a set of mounting brackets 2.

[0031] The top of the mounting bracket 2 is equipped with a pole extension section 4. Four sets of rocker arm bodies 3 are provided at equal intervals on the side wall at the bottom of the pole extension section 4. Each rocker arm body 3 is provided with a movable shaft 5 at one end near the pole extension section 4, and the rocker arm body 3 is movably connected to the pole extension section 4 through the movable shaft 5.

[0032] Four sets of first fixed pulleys 7 are provided at equal intervals on the side wall of the top of the extended section 4 of the pole, and a second fixed pulley 10 is provided at the end of the rocker arm body 3 away from the extended section 4 of the pole.

[0033] The top of the rocker arm body 3 is provided with a limiting steel wire rope 6, and the limiting steel wire rope 6 extends to the surface of the first fixed pulley 7, and the limiting steel wire rope 6 is slidably connected to the first fixed pulley 7.

[0034] As the tower grows taller, the height of the gantry also needs to be adjusted. The second hydraulic rod 12 is opened in reverse, causing the second push arm 21 to retract and be pulled out from the insertion post 19. Then, the first hydraulic rod 8 is opened, causing the first push arm 9 to move. The first push arm 9 then moves the support frame 23 upwards, which in turn moves multiple sets of mounting frames 2 upwards, freeing up space at the bottom. New mounting frames 2 are then placed at the bottom, thus increasing the overall height of the gantry. This automatic lifting and adjustment of the gantry height reduces the need for frequent disassembly of the wire rope required for traditional gantry height adjustments, improving the convenience of raising the gantry height.

[0035] Working principle: When using this rocker arm, the base 1 is moved to the center of the tower base. The base 1 is made of concrete. The third hydraulic rod 13 drives the third push arm 14 to move. The third push arm 14 drives the support leg 16 to rotate around the pin 17 via the hinge shaft 15. The placement frame 11 provides support for the third hydraulic rod 13 and the support leg 16. The support leg 16 drives the stabilizing block 18 to rotate via the connecting shaft 22, so that the stabilizing block 18 contacts the ground. Multiple sets of support legs 16 provide stable support for the base 1. The mounting frame 2 is then placed... Installed at the top of base 1, the installation method involves inserting the plug-in post 19 into the interior of base 1. The surface of base 1 has multiple sets of insertion holes. The second hydraulic rod 12 drives the second push arm 21 to move, inserting the second push arm 21 into the pin hole 20 to limit and fix the plug-in post 19 inside the base 1, thereby installing the bottommost mounting bracket 2 onto base 1. Then, multiple sets of mounting brackets 2 are inserted and stacked sequentially in a top-to-bottom order. Two adjacent sets of mounting brackets 2 are fixedly connected using bolts. The limiting wire rope 6 is connected to the winch, and the winch is operated... The limiting wire rope 6 is wound up and down. With the assistance of the first fixed pulley 7 and under the action of gravity, the rocker arm body 3 rotates around the movable shaft 5, so that the rocker arm body 3, the extended section of the boom 4, and the limiting wire rope 6 form a stable triangular structure. The included angle between the rocker arm body 3 and the extended section of the boom 4 shall not exceed 90 degrees. Then, the hoisting wire rope is passed through the second fixed pulley 10, and one end of the hoisting wire rope is connected to the object to be hoisted, and the other end is connected to the winch. The winch winds up the hoisting wire rope, thereby hoisting the object to be hoisted to... After installation, the lower and middle parts of the tower are assembled sequentially. As the tower grows taller, the height of the mast needs to be adjusted. The second hydraulic rod 12 drives the second push arm 21 to retract, pulling the second push arm 21 out from the inside of the plug-in column 19. The first hydraulic rod 8 drives the first push arm 9 to move, which in turn drives the support frame 23 to move upward. The support frame 23 then drives multiple sets of mounting frames 2 to move upward, leaving space at the bottom. The new mounting frames 2 are then placed at the bottom to increase the overall height of the mast.

Claims

1. A floor-mounted four-rocker arm pole, comprising a base (1) and a placement frame (11), characterized in that: The outer wall of the base (1) is provided with four sets of equally spaced placement frames (11). A third hydraulic rod (13) is movably installed inside each placement frame (11). A third push arm (14) is installed at the output end of each third hydraulic rod (13). A hinge shaft (15) is provided at the end of each third push arm (14) away from the third hydraulic rod (13). A support leg (16) is provided inside each placement frame (11) on one side of the third hydraulic rod (13). The support leg (16) is close to the placement frame. One end of each placement frame (11) is provided with a pin (17), and the support leg (16) is movably connected to the placement frame (11) through the pin (17). The third push arm (14) is movably connected to the support leg (16) through the hinge shaft (15). The end of each support leg (16) away from the placement frame (11) is provided with a stabilizing block (18). The top of each stabilizing block (18) is provided with a connecting shaft (22), and the stabilizing block (18) is movably connected to the support leg (16) through the connecting shaft (22).

2. A ground-mounted four-rocker arm pole according to claim 1, characterized in that: Two sets of second hydraulic rods (12) are symmetrically arranged on the side wall of the base (1), and a second push arm (21) is installed at the output end of each of the second hydraulic rods (12).

3. A ground-mounted four-rocker arm pole according to claim 1, characterized in that: The top of the base (1) is provided with multiple sets of mounting brackets (2) at equal intervals, and the mounting brackets (2) are arranged vertically.

4. A ground-mounted four-rocker arm pole according to claim 3, characterized in that: The bottom of each mounting bracket (2) is symmetrically provided with plug-in posts (19), and each plug-in post (19) has a pin hole (20) on its surface, and the second push arm (21) can be inserted into the inside of the pin hole (20).

5. A ground-mounted four-rocker arm pole according to claim 3, characterized in that: The top of the base (1) on both sides of the mounting bracket (2) is movably mounted with a first hydraulic rod (8), and the output end of the first hydraulic rod (8) is mounted with a first push arm (9). The top of the first push arm (9) is provided with a support frame (23), and the support frame (23) extends into the interior of a set of mounting brackets (2).

6. A ground-mounted four-rocker arm pole according to claim 3, characterized in that: The top of the mounting bracket (2) is equipped with a rod extension section (4). Four sets of rocker arm bodies (3) are provided on the side wall at the bottom of the rod extension section (4) at equal intervals. Each rocker arm body (3) is provided with a movable shaft (5) at one end near the rod extension section (4), and the rocker arm body (3) is movably connected to the rod extension section (4) through the movable shaft (5).

7. A ground-mounted four-rocker arm pole according to claim 6, characterized in that: The top side wall of the extended section of the pole (4) is provided with four sets of first fixed pulleys (7) at equal intervals, and the rocker arm body (3) is provided with second fixed pulleys (10) at the end away from the extended section of the pole (4).

8. A ground-mounted four-rocker arm pole according to claim 6, characterized in that: The top of each rocker arm body (3) is provided with a limiting steel wire rope (6), and the limiting steel wire rope (6) extends to the surface of the first fixed pulley (7), and the limiting steel wire rope (6) is slidably connected to the first fixed pulley (7).

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