Lightweight crossing frame convenient to transfer

Abstract

The utility model provides a light-weight crossing frame convenient to transfer, which comprises a vehicle body, a base is arranged on the vehicle body, a turntable is arranged on the base, and a mounting seat is rotationally arranged on the turntable; a supporting frame is hinged to the base, a first hydraulic cylinder is arranged between the supporting frame and the base, and the two ends of the first hydraulic cylinder are hinged to the supporting frame and a hinge frame on the base respectively. A connecting seat is hinged to the top end of the supporting frame, a telescopic arm is arranged on the connecting seat, a second hydraulic cylinder is arranged between the telescopic arm and the supporting frame, the two ends of the second hydraulic cylinder are hinged to the supporting frame and the telescopic arm respectively, the telescopic arm comprises a plurality of arm sections which are arranged together in a sliding and sleeving mode, and a vertical supporting arm is arranged on the arm section at the innermost end; and the end part of the telescopic arm is associated with a counterweight assembly arranged on the mounting seat, a transmission assembly and a winding assembly arranged on the base through a balance rope. According to the lightweight spanning frame convenient to transfer, the structural design can ensure the stability of the spanning frame during construction, and meanwhile, the weight of the whole equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission line construction, and particularly relates to a lightweight spanning frame which is convenient to transfer. Background Art

[0002] During the construction of high-voltage transmission lines, it is often necessary to cross residential houses, bridges, roads, railways, etc. In order to carry out the construction of the transmission line normally, it is necessary to cross these facilities for wire erection and net sealing construction. However, the traditional spanning frame cannot meet the construction requirements due to its disadvantages such as large overall weight, low automation level, slow erection, and poor safety.

[0003] Therefore, it is necessary to develop a new spanning frame to meet the use requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lightweight spanning frame which is convenient to transfer in view of the deficiencies of the prior art. The specific scheme is as follows:

[0005] A lightweight spanning frame which is convenient to transfer includes a vehicle body. A base is arranged on the vehicle body. A turntable is arranged on the base. An installation seat is rotatably arranged on the turntable. The turntable is driven to rotate by a servo motor arranged on the base through a gear structure. A support frame is hinged on the base. A first hydraulic cylinder is arranged between the support frame and the base. Two ends of the first hydraulic cylinder are respectively hinged to a hinge frame on the support frame and the base. The top end of the support frame is hinged with a connecting seat. A telescopic arm is arranged on the connecting seat. A second hydraulic cylinder is arranged between the telescopic arm and the support frame. Two ends of the second hydraulic cylinder are respectively hinged to the support frame and the telescopic arm. The telescopic arm includes a plurality of arm sections which are sleeved together in a sliding manner and the sizes of which gradually decrease from outside to inside. A vertical support arm is hinged to the innermost arm section and a winding device for the vertical support arm is arranged inside the arm section. A support rod is arranged on the connecting seat. A fixed pulley is rotatably arranged at the top end of the support rod. The end of the telescopic arm is associated with a counterweight assembly, a transmission assembly arranged on the installation seat and a winding assembly arranged on the base through a balance rope bypassing the fixed pulley.

[0006] Based on the above, the winding device includes a winding roller rotatably arranged on the innermost arm section of the telescopic arm. The winding roller is driven to rotate by a second servo motor. A pull rope is wound on the winding roller. The free end of the pull rope is connected to the vertical support arm.

[0007] Based on the above, the winding assembly includes a pair of third upright frames fixed on the base. A second rotating shaft is rotatably arranged on each of the pair of third upright frames. A square rod with a square cross-section is arranged on the second rotating shaft. A rope disc for winding the balance rope is slidably arranged on the square rod. The second rotating shaft is driven to rotate by a second driving motor arranged on one of the third upright frames.

[0008] The counterweight assembly includes two counterweight mechanisms arranged on the base. The two counterweight mechanisms include a pair of vertical frames four fixedly arranged on the mounting base. A guide rod is arranged between the pair of vertical frames four. A counterweight seat is slidably arranged on the guide rod. A plurality of counterweight blocks are arranged on the counterweight seat. Two jacks are arranged on the counterweight blocks. Plug rods corresponding to the jacks are arranged on the counterweight seat. A rotating rod is also rotatably arranged between the pair of vertical frames four. A threaded section screwed to the counterweight seat is arranged on the rotating rod. One end of the rotating rod is provided with a driven bevel gear. The transmission assembly includes a pair of vertical frames one fixedly arranged on the mounting base. A rotating shaft one is rotatably arranged on the pair of vertical frames one. A friction wheel for the balance rope is arranged on the rotating shaft one. Driving bevel gears respectively meshing with the driven bevel gears in the two counterweight mechanisms are arranged at both ends of the transmission shaft. The transmission assembly further includes a vertical frame two fixedly arranged on the mounting base. A bracket is arranged on one side of the vertical frame two. A pressing wheel for pressing the balance rope is rotatably arranged on the bracket. A plurality of guide rods slidably penetrating through the vertical frame two are arranged on the bracket. An adjusting screw rod is also screwed through the vertical frame two. One end of the adjusting screw rod is connected to the bracket through a rotary joint.

[0009] Based on the above, a first leg used for abutting against the mounting base is arranged at the bottom of the support frame; a second leg used for abutting against the top of the support frame is arranged at the bottom of the connecting seat.

[0010] Based on the above, the vertical support arm includes an outer cylinder body hinged to the innermost arm section of the telescopic arm. An inner cylinder body is slidably arranged in the outer cylinder body. A support hydraulic cylinder is arranged in the outer cylinder body. The telescopic end of the support hydraulic cylinder is connected to the bottom end of the inner cylinder body.

[0011] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0012] The lightweight spanning frame provided by the utility model is convenient to transfer. By associating the telescopic arm with the counterweight assembly arranged on the base, the transmission assembly and the winding assembly arranged on the mounting frame one, its structural design can ensure that the position of the counterweight assembly is adjusted during the extension or retraction of the telescopic arm, guarantee the stability when the spanning frame is erected or retracted, and at the same time reduce the weight of the counterweight assembly. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the utility model.

[0014] Figure 2 is Figure 1 the structural schematic diagram at position A in

[0015] Figure 3 is the partial structural schematic diagram of the utility model.

[0016] Figure 4 It is a partial structural schematic diagram of the present utility model.

[0017] Figure 5 It is a top view of the partial structure in the present utility model.

[0018] Figure 6 is Figure 1 a structural schematic diagram of part B in

[0019] In the figure: 1. vehicle body; 2. base; 3. turntable; 4. mounting seat; 5. support frame; 6. first hydraulic cylinder; 7. connecting seat; 8. telescopic arm; 9. second hydraulic cylinder; 10. vertical support arm; 10-1. outer cylinder; 10-2. inner cylinder; 10-3. support hydraulic cylinder; 11. winding device; 11-1. pulling rope; 12. support rod; 13. fixed pulley; 14. balance rope; 15. transmission assembly; 15-1. first vertical frame; 15-2. second vertical frame; 15-3. first rotating shaft; 15-4. friction wheel; 15-5. bracket; 15-6. guide rod; 15-7. adjusting screw rod; 15-8. pressing wheel; 15-9. driving bevel gear; 16. winding assembly; 16-1. third vertical frame; 16-2. second rotating shaft; 16-3. rope reel; 16-4. second driving motor; 17. counterweight assembly; 17-1. fourth vertical frame; 17-2. guide rod; 17-3. rotating rod; 17-4. counterweight seat; 17-5. inserting rod; 17-6. counterweight block; 17-7. driven bevel gear; 18. controller. Specific embodiments

[0020] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0021] Embodiment

[0022] Such as Figures 1-6As shown in the figure, the utility model provides a lightweight spanning frame that is convenient for transfer, including a vehicle body 1. A base 2 is provided on the vehicle body 1. A turntable 3 is provided on the base 2. A mounting seat 4 is rotatably provided on the turntable 3. The turntable 3 is driven to rotate by a servo motor provided on the base 2 through a gear structure. A support frame 5 is hinged on the base 2. A first hydraulic cylinder 6 is provided between the support frame 5 and the base 2. Two ends of the first hydraulic cylinder 6 are respectively hinged to hinge frames on the support frame 5 and the base 2. A connection seat 7 is hinged at the top of the support frame 5. A telescopic arm 8 is provided on the connection seat 7. A second hydraulic cylinder 9 is provided between the telescopic arm 8 and the support frame 5. Two ends of the second hydraulic cylinder 9 are respectively hinged to the support frame 5 and the telescopic arm 8. The telescopic arm 8 includes a plurality of arm sections that are slidably sleeved together and whose sizes gradually decrease from outside to inside. A vertical support arm 10 is hinged on the innermost arm section, and a winding device 11 for the vertical support arm 10 is provided inside this arm section. A support rod 12 is provided on the connection seat 7. A fixed pulley 13 is rotatably provided at the top of the support rod 12. The end of the telescopic arm 8 is associated with a counterweight assembly 17, a transmission assembly 15 provided on the mounting seat 4, and a winding assembly 16 provided on the base 2 through a balance rope 14 that bypasses the fixed pulley 13.

[0023] The above-mentioned winding device 11 is used to retract the vertical support arm 10 into the arm section or release the vertical support arm 10 from the arm section. It includes a winding roller rotatably provided on the innermost arm section of the telescopic arm 8. The winding roller is driven to rotate by a second servo motor. A pulling rope 11-1 is wound around the winding roller. The free end of the pulling rope 11-1 is connected to the vertical support arm 10.

[0024] The above-mentioned coiling assembly 16 is used for storing or releasing the balance rope 14, and includes a pair of third upright frames 16-1 fixedly arranged on the base 2. A second rotating shaft 16-2 is rotatably arranged on each of the pair of third upright frames 16-1. The second rotating shaft 16-2 itself is provided with a square rod with a square cross-section. A rope reel 16-3 for winding the balance rope 14 is slidably arranged on the square rod. The second rotating shaft 16-2 is driven to rotate by a second driving motor 16-4 arranged on one of the pair of third upright frames 16-1. The counterweight assembly 17 includes two counterweight mechanisms arranged on the base 2. The two counterweight mechanisms include a pair of fourth upright frames 17-1 fixedly arranged on the mounting seat 4. A guide rod 17-2 is arranged between the pair of fourth upright frames 17-1. A counterweight seat 17-4 is slidably arranged on the guide rod 17-2. A plurality of counterweight blocks 17-6 are arranged on the counterweight seat 17-4. Two jacks are arranged on the counterweight block 17-6. A plug rod 17-5 corresponding to the jack is arranged on the counterweight seat 17-4. A rotating rod 17-3 is also rotatably arranged between the pair of fourth upright frames 17-1. A threaded section screwed with the counterweight seat 17-4 is arranged on the rotating rod 17-3. A driven bevel gear 17-7 is arranged at one end of the rotating rod 17-3. The transmission assembly 15 includes a pair of first upright frames 15-1 fixedly arranged on the mounting seat 4. A first rotating shaft 15-3 is rotatably arranged on the pair of first upright frames 15-1. A friction wheel 15-4 for the balance rope 14 is arranged on the first rotating shaft 15-3. Driving bevel gears 15-9 respectively meshing with the driven bevel gears 17-7 in the two counterweight mechanisms are arranged at both ends of the transmission shaft. The transmission assembly 15 further includes a second upright frame 15-2 fixedly arranged on the mounting seat 4. A bracket 15-5 is arranged on one side of the second upright frame 15-2. A pressing wheel 15-8 for pressing the balance rope 14 is rotatably arranged on the bracket 15-5. A plurality of guide rods 15-6 slidably penetrating through the second upright frame 15-2 are arranged on the bracket 15-5. An adjusting screw rod 15-7 is also screwed through the second upright frame 15-2. One end of the adjusting screw rod 15-7 is connected to the bracket 15-5 through a rotary joint.

[0025] The bottom of the above-mentioned support frame 5 is provided with a first leg for abutting against the mounting seat 4; the bottom of the connecting seat 7 is provided with a second leg for abutting against the top of the support frame 5.

[0026] The above-mentioned vertical support arm 10 includes an outer cylinder 10-1 hinged to the innermost arm section of the telescopic arm 8. An inner cylinder 10-2 is slidably arranged in the outer cylinder 10-1. A support hydraulic cylinder 10-3 is arranged in the outer cylinder 10-1. The telescopic end of the support hydraulic cylinder 10-3 is connected to the bottom end of the inner cylinder 10-2.

[0027] It should be noted that the above-mentioned various electrical devices are all electrically connected to the controller 18.

[0028] The specific working principle of the utility model: When it is necessary to build a net-covered spanning frame, first move the vehicle body 1 to the construction position, then control the servo motor to rotate so that the mounting seat 4 rotates to a suitable position. Next, control the telescopic end of the first hydraulic cylinder 6 to extend through the controller 18 so that the support frame 5 is in a vertical state, and control the telescopic end of the second hydraulic cylinder 9 to extend through the controller 18 so that the telescopic arm 8 is in a horizontal state. Then control the first driving motor to rotate so that the base 2 rotates to a suitable position.

[0029] Next, control the arm sections of the telescopic arm 8 to extend. First, extend the innermost arm section, and then gradually control the other arm sections to extend from the inside to the outside until the telescopic arm 8 extends to a suitable position. Then, control the second servo motor in the winding device 11 to rotate so that the vertical support arm 10 unfolds to a vertical position. Next, control the telescopic end of the support hydraulic cylinder 10-3 to extend so that the inner cylinder 10-2 in the vertical support arm 10 extends downward to support on the ground.

[0030] In addition, when the telescopic arm 8 extends, it drives the balance rope 14 to be released from the rope reel 16-3. The balance rope 14 drives the friction wheel 15-4 to rotate. When the friction wheel 15-4 rotates, it causes the first rotating shaft 15-3 to rotate. When the first rotating shaft 15-3 rotates, the driving bevel gear 15-9 drives the driven bevel gear 17-7 to rotate, and further causes the rotating rod 17-3 to rotate, thereby adjusting the position of the counterweight seat 17-4 to keep the whole device balanced.

[0031] When it is necessary to retract the spanning frame, first retract the inner cylinder 10-2 in the vertical support arm 10, then use the winding device 11 to retract the vertical support arm 10 into the arm section. Next, control the arm sections of the telescopic arm 8 to retract one by one starting from the innermost end. At the same time, control the second driving motor 16-4 in the winding assembly 16 to rotate to wind up the balance rope 14. At the same time, the friction wheel 15-4 rotates, and further the position of the counterweight seat 17-4 is restored. Then control the telescopic ends of the first hydraulic cylinder 6 and the second hydraulic cylinder 9 to retract, and finally adjust the position of the mounting seat 4 through the servo motor.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit them; although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the utility model or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the utility model, they should all be covered within the scope of the technical solutions claimed by the utility model.

Claims

1. A lightweight spanning frame that is easy to transfer, characterized in that: The invention comprises a vehicle body (1), wherein the vehicle body (1) is provided with a base (2), the base (2) is provided with a turntable (3), the turntable (3) is rotatably provided with a mounting seat (4), and the turntable (3) is driven to rotate by a servo motor arranged on the base (2) through a gear structure; a support frame (5) is hingedly provided on the base (2), a hydraulic cylinder (6) is provided between the support frame (5) and the base (2), and the two ends of the hydraulic cylinder (6) are respectively hingedly connected to the support frame (5) and the hinged frame on the base (2); a connecting seat (7) is hingedly provided at the top end of the support frame (5), a telescopic arm (8) is provided on the connecting seat (7), a hydraulic cylinder (9) is provided between the telescopic arm (8) and the support frame (5), and the hydraulic cylinder (9) is provided between the hydraulic cylinder (9) and the support frame (5). The two ends of the second pressure cylinder (9) are respectively hinged to the support frame (5) and the telescopic arm (8), the telescopic arm (8) comprising a plurality of arm sections which are slidably sleeved together and whose sizes gradually decrease from the outside to the inside, the innermost arm section being hingedly provided with a vertical support arm (10) and the arm section being provided with a winding device (11) for the vertical support arm (10); the connecting seat (7) being provided with a support rod (12), the top end of which is rotatably provided with a fixed pulley (13), the end of the telescopic arm (8) being associated with a counterweight assembly (17) arranged on the mounting seat (4), a transmission assembly (15) and a winding assembly (16) arranged on the base (2) through a balance rope (14) which passes around the fixed pulley (13).

2. The lightweight spanning frame that is easy to transfer according to claim 1 is characterized in that: The winding device (11) comprises a winding roller rotatably arranged on the arm section at the innermost end of the telescopic arm (8), the winding roller being driven to rotate by servo motor 2, a pull rope (11-1) being wound around the winding roller, and a free end of the pull rope (11-1) being connected to the vertical support arm (10).

3. The lightweight spanning frame that is easy to transfer according to claim 1 is characterized in that: The winding assembly (16) comprises a pair of vertical frames (16-1) fixedly mounted on the base (2), each of the pair of vertical frames (16-1) being rotatably provided with a second rotating shaft (16-2), the second rotating shaft (16-2) itself being provided with a square rod with a square cross section, the square rod being slidably provided with a rope drum (16-3) for winding the balance rope (14), the second rotating shaft (16-2) being driven to rotate by a second driving motor (16-4) mounted on one of the vertical frames (16-1); the counterweight assembly (17) comprising two The two counterweight mechanisms include a pair of four upright frames (17-1) fixedly mounted on the mounting seat (4), a guide rod (17-2) being disposed between the pair of four upright frames (17-1), a counterweight seat (17-4) being slidably disposed on the guide rod (17-2), a plurality of counterweight blocks (17-6) being disposed on the counterweight seat (17-4), two plug holes being disposed on the counterweight blocks (17-6), a plug rod (17-5) corresponding to the plug holes being disposed on the counterweight seat (17-4), and a rotating rod (17-3) being rotatably disposed between the pair of four upright frames (17-1), the rotating rod The rotating rod (17-3) is provided with a threaded section screwed to the counterweight seat (17-4), and one end of the rotating rod (17-3) is provided with a driven bevel gear (17-7); the transmission assembly (15) comprises a pair of vertical frames (15-1) fixedly mounted on the mounting seat (4), a rotating shaft (15-3) rotatably mounted on the pair of vertical frames (15-1), a friction wheel (15-4) for the balance rope (14) is mounted on the rotating shaft (15-3), and active bevel gears (15-4) respectively meshing with the driven bevel gears (17-7) in the two counterweight mechanisms are provided at both ends of the transmission shaft. 5-9), the transmission assembly (15) also includes a second stand (15-2) fixedly mounted on the mounting seat (4), a bracket (15-5) is provided on one side of the second stand (15-2), an extrusion wheel (15-8) for extruding the balance rope (14) is rotatably provided on the bracket (15-5), a plurality of guide rods (15-6) slidingly passing through the second stand (15-2) are provided on the bracket (15-5), and an adjusting screw rod (15-7) is also threadedly passed through the second stand (15-2), and one end of the adjusting screw rod (15-7) is connected to the bracket (15-5) via a rotating joint.

4. The lightweight spanning frame for easy transfer according to claim 1 is characterized in that: The bottom of the support frame (5) is provided with a first leg for abutting against the mounting seat (4); the bottom of the connecting seat (7) is provided with a second leg for abutting against the top of the support frame (5).

5. The lightweight spanning frame that is easy to transfer according to claim 1 is characterized in that: The vertical support arm (10) comprises an outer cylinder (10-1) hingedly connected to the innermost arm section of the telescopic arm (8), an inner cylinder (10-2) slidingly arranged inside the outer cylinder (10-1), a supporting hydraulic cylinder (10-3) arranged inside the outer cylinder (10-1), and a telescopic end of the supporting hydraulic cylinder (10-3) connected to the bottom end of the inner cylinder (10-2).

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