Double-rocker arm derrick

Abstract

The utility model relates to the technical field of double-rocker-arm holding poles, and discloses a double-rocker-arm holding pole which comprises a rocker arm mechanism, a holding pole mechanism and a lifting hook mechanism, the holding pole mechanism is arranged on one side of the rocker arm mechanism, the lifting hook mechanism is arranged at the bottom of the holding pole mechanism, and the rocker arm mechanism comprises a rocker arm fixing piece. The rocker arm mechanism is arranged, the motor is started, the motor drives the cable shaft to rotate through the coupler, the cable shaft drives the first cable roll to rotate, when the first cable roll rotates to enable the first cable to start to be tightened, meanwhile, the hydraulic cylinder push rod also starts to push the holding pole, and the first cable drives the rocker arm to lift through the second cable fixing piece and the hydraulic cylinder; stable and stable rocker arm lifting can be achieved in the mode that motor driving is matched with hydraulic cylinder pushing, and potential safety hazards caused by improper manual operation or mechanical faults are avoided. And meanwhile, the potential damage to the power cable due to improper lifting can be reduced through accurate control of motor driving.

Description

Technical Field

[0001] The utility model relates to the technical field of double rocker arm brackets, in particular to a double rocker arm bracket. Background Art

[0002] As the number of UHV lines built by the State Grid continues to increase, the demand for power cable construction equipment has also increased accordingly. The large root spacing, high profile, long cross arms, and heavy tower materials of UHV towers have brought great challenges to the construction units' tower assembly operations.

[0003] As disclosed in Chinese patent CN117569674A, a double rocker arm electric boom comprises a lower base frame, a slewing bearing is arranged on the top of the lower base frame, an upper base frame is arranged on the upper part of the slewing bearing, a supporting mechanism is arranged on the outside of the upper base frame, and rocker arms are arranged at both ends of the supporting mechanism, and one end of each of the two rocker arms is provided with a tension rope for fixing the angle of the rocker arms and a traction rope for providing traction force to lift the heavy object. The fulcrum adjustment mechanism and the supporting mechanism provided in the present invention will generate a large lateral load-bearing force when the rocker arms lift the heavy object. The lateral force is applied to the lateral force adjustment mechanism through the fulcrum adjustment mechanism, which can increase the lateral load-bearing capacity of the entire boom and reduce the lateral load-bearing force of the slewing bearing. The cooperation of the supporting mechanism and the fulcrum adjustment mechanism can form a triangular support state, which can reduce the lateral load-bearing force of the slewing bearing to the greatest extent.

[0004] The above-mentioned double rocker arm electric boom solves the problem of lateral load-bearing force generated when the rocker arm lifts heavy objects, while the traditional double rocker arm boom usually adopts a fixed-length rocker arm design, which limits the working range of the boom. Under certain special working conditions, such as high-altitude operations and operations in narrow spaces, the fixed-length rocker arm cannot meet the engineering requirements and may even cause the project to be unable to proceed. Secondly, the lifting of the traditional double rocker arm boom usually relies on manual or hydraulic drive. This drive method is not only cumbersome and inefficient, but also has safety hazards. At the same time, due to the instability of manual operation, the rocker arm may be lifted unsteadily, further increasing the safety hazard. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides a double rocker arm.

[0006] The utility model is implemented by adopting the following technical scheme: a double rocker arm holding rod comprises a rocker arm mechanism, a holding rod mechanism and a hook mechanism, wherein the holding rod mechanism is arranged on one side of the rocker arm mechanism, and the hook mechanism is arranged on the bottom of the holding rod mechanism.

[0007] As a further improvement of the above scheme, the rocker mechanism includes a rocker fixing part, the inner wall of the rocker fixing part is in contact with and connected to a rocker connecting column, the outer wall of the rocker connecting column is hinged to a rocker movable part, one side of the rocker movable part is fixedly connected to a rocker, one side of the rocker is fixedly connected to a first cable fixing part, one side of the first cable fixing part is fixedly connected to a cable connecting column, the outer wall of the cable connecting column is sleeved with a connecting rope, the end of the connecting rope away from the first cable fixing part is hinged to a second cable fixing part, the outer wall of the second cable fixing part A first cable is fixedly connected to the wall, an end of the first cable away from the second cable fixing piece is coiled and connected to the first cable reel, two ends of the first cable reel away from each other are rotatably connected to a cable reel fixing plate, a cable shaft penetrates the inner wall of one side of the cable reel fixing plate, a coupling is fixedly connected to the outer wall of the cable shaft, an end of the coupling away from the cable shaft is fixedly connected to a motor, a motor bracket is fixedly connected to the bottom of the motor, the upper end surface of the front end of the rocker arm is hinged to the end of the hydraulic rod top rod, and the base end of the hydraulic cylinder is hinged to the upper part of the boom mechanism.

[0008] Through the above technical solution, by installing a motor, the lifting operation of the rocker arm can be completed more quickly and accurately. This not only shortens the construction time, but also improves work efficiency and helps to speed up the progress of the project.

[0009] As a further improvement of the above solution, the hydraulic cylinder is arranged at an angle.

[0010] Through the above technical solution, by installing a hydraulic cylinder, the length of the rocker arm can be changed quickly and directly, reducing the time and labor cost of replacing the rocker arm or adjusting the construction position, thereby improving construction efficiency.

[0011] As a further improvement of the above solution, the pole holding mechanism includes a pole, a fixing plate is fixedly connected to one side of the pole, and a base is fixedly connected to the bottom of the pole.

[0012] Through the above technical solution, by installing the base, the whole is fixed.

[0013] As a further improvement of the above solution, the fixing plate is fixedly connected to the rocker arm fixing piece.

[0014] Through the above technical solution, by installing the fixing plate, the rocker arm is fixed.

[0015] As a further improvement of the above scheme, the hook mechanism includes a second cable reel, a lifting system is provided on one side of the second cable reel, a second cable is coiled on the outer wall of the second cable reel, a third cable fixing part is fixedly connected to one side of the holding rod, the end of the second cable away from the second cable reel is fixedly connected to a pulley block, and a hook is fixedly connected to the bottom of the pulley block.

[0016] Through the above technical solution, by installing a lifting system, it is possible to respond quickly and accurately to operating instructions and lift the hook to a specified height and position, thereby significantly improving construction efficiency.

[0017] As a further improvement of the above solution, the outer wall of the second cable penetrates the inner wall of the third cable fixing member, and the pulley block is hinged to the connecting rope.

[0018] Through the above technical solution, by installing the pulley block, the labor-saving effect is achieved.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model sets a rocker mechanism, starts the motor, and the motor drives the cable shaft to rotate through the coupling, and the cable shaft drives the first cable reel to rotate. When the first cable reel rotates to tighten the first cable, the hydraulic cylinder push rod also starts to push toward the holding rod, and the first cable drives the rocker to lift through the second cable fixing member and the hydraulic cylinder. The motor drive cooperates with the hydraulic cylinder to push to achieve a smooth and stable rocker lifting, avoiding safety hazards caused by improper manual operation or mechanical failure. At the same time, the precise control of the motor drive can also reduce the potential damage to the power cable caused by improper lifting.

[0021] The utility model arranges a holding rod mechanism, and when the hydraulic cylinder push rod is pushed out, the rocker arm bracket begins to deform the side length to achieve the purpose of adjusting the length of the rocker arm. The length of the rocker arm can be changed quickly and directly, reducing the time and labor cost of replacing the rocker arm or adjusting the construction position, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the connection device A of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the connecting device B of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the drive device C of the utility model.

[0027] Description of main symbols:

[0028] 1. Rocker mechanism; 101. Rocker fixing member; 102. Rocker connecting column; 103. Rocker movable member; 104. Rocker; 105. First cable fixing member; 106. Cable connecting column; 107. Connecting rope; 108. Second cable fixing member; 109. First cable; 110. First cable reel; 111. Cable reel fixing plate; 112. Cable shaft; 113. Coupling; 114. Motor; 115. Motor bracket; 116. Hydraulic cylinder; 2. Holding rod mechanism; 201. Holding rod; 202. Fixing plate; 203. Base; 3. Hook mechanism; 301. Second cable reel; 302. Lifting system; 303. Second cable; 304. Third cable fixing member; 305. Pulley block; 306. Hook. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0030] Please combine Figure 1-5 A double rocker arm of the present embodiment comprises a rocker mechanism 1, a arm mechanism 2 and a hook mechanism 3. The arm mechanism 1 is provided with the arm mechanism 2 on one side. The arm mechanism 2 comprises an arm 201. A fixing plate 202 is fixedly connected to one side of the arm 201. A base 203 is fixedly connected to the bottom of the arm 201. The hook mechanism 3 is provided at the bottom of the arm mechanism 2.

[0031] The rocker mechanism 1 includes a rocker fixing member 101, a fixing plate 202 is fixedly connected to the rocker fixing member 101, an inner wall of the rocker fixing member 101 is in contact with a rocker connecting column 102, an outer wall of the rocker connecting column 102 is hinged with a rocker movable member 103, one side of the rocker movable member 103 is fixedly connected to a rocker arm 104, one side of the rocker arm 104 is fixedly connected to a first cable fixing member 105, one side of the first cable fixing member 105 is fixedly connected to a cable connecting column 106, an outer wall of the cable connecting column 106 is sleeved with a connecting cable 107, an end of the connecting cable 107 away from the first cable fixing member 105 is hinged with a second cable fixing member 108, and an outer wall of the second cable fixing member 108 is fixedly connected to A first cable 109 is connected, one end of the first cable 109 away from the second cable fixing piece 108 is coiled and connected to the first cable reel 110, two ends of the first cable reel 110 away from each other are rotatably connected to a cable reel fixing plate 111, an inner wall of one side of the cable reel fixing plate 111 passes through a cable shaft 112, an outer wall of the cable shaft 112 is fixedly connected to a coupling 113, one end of the coupling 113 away from the cable shaft 112 is fixedly connected to a motor 114, and a motor bracket 115 is fixedly connected to the bottom of the motor 114, the upper end face of the front end of the rocker arm 104 is hinged to the end of the top rod of the hydraulic rod 116, the base end of the hydraulic cylinder 116 is hinged to the upper part of the holding rod 201, and the hydraulic cylinder 116 is arranged tilted.

[0032] The hook mechanism 3 includes a second cable reel 301, a lifting system 302 is provided on one side of the second cable reel 301, a second cable 303 is coiled on the outer wall of the shaft of the second cable reel 301, a third cable fixing part 304 is fixedly connected to one side of the holding rod 201, and the end of the second cable 303 away from the second cable reel 301 is fixedly connected to a pulley block 305, and a hook 306 is fixedly connected to the bottom of the pulley block 305.

[0033] The outer wall of the second cable 303 and the inner wall of the third cable fixing member 304 penetrate each other, and the pulley block 305 is hinged to the connecting rope 107 .

[0034] The implementation principle of a double rocker arm in the embodiment of the present application is: start the lifting system 302 and the motor 114, the lifting system 302 drives the second cable reel 301, the second cable reel 301 starts to release the rope to loosen the second cable 303 and the hook 306 descends, the hook 306 descends to a certain distance to lift the object, and the lifting system 302 is controlled to tighten the second cable 303 to make the object rise. The motor 114 drives the cable shaft 112 to rotate through the coupling 113, and the cable shaft 112 drives the first cable reel 110 to rotate. When the first cable reel 110 rotates to tighten the first cable 109, at the same time, the hydraulic cylinder 116 push rod also starts to push toward the holding rod 201, and the first cable 109 drives the rocker arm 104 to rise through the second cable fixing piece 108 and the hydraulic cylinder 116. At this time, when the rocker arm 104 is lifted to a certain position, the object is placed. When the first cable 109 begins to relax, the length of the first cable 109 will gradually increase and the hydraulic cylinder 116 push rod pushes outward to lower the rocker arm 104, thereby changing the lateral distance to the rocker arm 104 and lifting the rocker arm 104 at the same time.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A double rocker arm, characterized in that: It comprises a rocker mechanism (1), a rod holding mechanism (2) and a hook mechanism (3), wherein the rocker mechanism (1) is provided with the rod holding mechanism (2) on one side, and the hook mechanism (3) is provided at the bottom of the rod holding mechanism (2); The rocker mechanism (1) comprises a rocker fixing part (101), the inner wall of the rocker fixing part (101) is in contact with a rocker connecting column (102), the outer wall of the rocker connecting column (102) is hinged with a rocker movable part (103), one side of the rocker movable part (103) is fixedly connected to a rocker (104), one side of the rocker (104) is fixedly connected to a first cable fixing part (105), one side of the first cable fixing part (105) is fixedly connected to a cable connecting column (106), the outer wall of the cable connecting column (106) is sleeved with a connecting rope (107), one end of the connecting rope (107) away from the first cable fixing part (105) is hinged with a second cable fixing part (108), the outer wall of the second cable fixing part (108) is fixedly connected to the first A cable (109), one end of the first cable (109) away from the second cable fixing member (108) is coiled and connected to a first cable reel (110), two ends of the first cable reel (110) away from each other are rotatably connected to a cable reel fixing plate (111), a cable shaft (112) passes through the inner wall of one side of the cable reel fixing plate (111), a coupling (113) is fixedly connected to the outer wall of the cable shaft (112), one end of the coupling (113) away from the cable shaft (112) is fixedly connected to a motor (114), the bottom of the motor (114) is fixedly connected to a motor bracket (115), the upper end surface of the front end of the rocker arm (104) is hinged to the end of the top rod of the hydraulic cylinder (116), and the base end of the hydraulic cylinder (116) is hinged to the upper part of the arm holding mechanism (2).

2. A double rocker arm according to claim 1, characterized in that: The hydraulic cylinder (116) is arranged tilted.

3. A double rocker arm according to claim 1, characterized in that: The pole holding mechanism (2) comprises a pole holding (201), one side of the pole holding (201) is fixedly connected to a fixing plate (202), and the bottom of the pole holding (201) is fixedly connected to a base (203).

4. A double rocker arm according to claim 1, characterized in that: The fixing plate (202) is fixedly connected to the rocker arm fixing member (101).

5. The double rocker arm according to claim 1, characterized in that: The hook mechanism (3) comprises a second cable reel (301), a lifting system (302) is provided on one side of the second cable reel (301), a second cable (303) is coiled around the outer wall of the shaft of the second cable reel (301), a third cable fixing member (304) is fixedly connected to one side of the holding rod (201), an end of the second cable (303) away from the second cable reel (301) is fixedly connected to a pulley block (305), and a hook (306) is fixedly connected to the bottom of the pulley block (305).

6. A double rocker arm according to claim 5, characterized in that: The outer wall of the second cable (303) penetrates the inner wall of the third cable fixing member (304), and the pulley block (305) is hinged to the connecting rope (107).

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