CN103996992A - Mobile quick crossing frame - Google Patents

Abstract

The invention discloses a mobile fast spanning frame, which comprises a car body, an auxiliary frame, a car body support assembly, a hydraulic lifting platform, and a rotary operation assembly. The vehicle body support assembly includes four vertical oil cylinders and two overhanging vertical oil cylinders arranged under the sub-frame and respectively controlled by the console for getting off the vehicle. The slewing operation assembly includes a slewing platform, the slewing platform is hinged to a lower arm frame with a long arm structure, and the end of the lower arm frame far away from the slewing platform is articulated to a telescopic boom frame, and the telescopic boom frame is connected through a plurality of sway bar hooks hinged on both sides. A protective rope net is connected by hanging, and one end of the telescopic boom away from the lower boom is hinged to support the boom. The invention can quickly and conveniently realize the spanning of the overhead wire at the work site through the vehicle body carrying the mechanically assembled spanning frame, and has the advantages of reasonable structure, short construction period and reusability.

Description

Mobile Fast Span

technical field

The invention relates to an auxiliary device used in electric power construction, in particular to a fast spanning frame.

Background technique

With the continuous development of the economy, the investment in power construction continues to increase, and the construction of power transmission projects continues to increase. Due to the influence of terrain, landform and line passage, there are more and more phenomena that need to cross houses, roads, railways, docks, bridges and other facilities during line construction. When performing these crossing operations, it is often necessary to perform power outage processing on the crossed distribution lines, and at the same time, it is necessary to cut off roads, railways, etc., which brings great inconvenience to the production and life of customers.

In order not to affect the normal production and life during line construction, at present, the spanning frame is usually built from bottom to top at appropriate positions on both sides of the construction line, and then the staff climbs on the top of the spanning frame to fix and tension the overhead wire. The construction period of the traditional spanning frame is long, the operation is cumbersome, and it has a great impact on the surrounding facilities. The temporary spanning frame is sometimes not strong, which is likely to bring safety hazards; and the materials used to build the spanning frame cannot be reused, and the economic benefits are poor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a mobile fast crossing frame, which can conveniently and smoothly perform crossing and stringing operations.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The mobile fast spanning frame includes a car body with a main frame, on which a sub-frame with a walking platform embedded on the top surface is fixed, and the sub-frame is provided with a car body for supporting the entire car body in the air. The body support assembly, the middle part of the sub-frame is equipped with a rotary operation assembly, and the tail of the sub-frame is equipped with a hydraulic lifting platform for carrying operators up and down;

The vehicle body support assembly includes four vertical oil cylinders and two outstretched vertical oil cylinders respectively controlled by the console for getting off the vehicle, and the vertical oil cylinders are fixedly arranged on the left and right sides below the subframe. At both ends of the side, the outstretched vertical oil cylinder is connected to the two ends of the left side below the subframe;

The slewing operation assembly includes a slewing support driven by a motor and embedded in the sub-frame and the walking platform. The slewing support is fixedly connected to the slewing platform, and the slewing platform is installed on the slewing platform to control the movement of the hydraulic lifting platform and the slewing operation assembly. The upper control box of the car, the slewing platform is hinged with a lower arm frame with a long arm structure, and the end of the lower arm frame far away from the slewing platform is hinged with a telescopic arm frame, and the telescopic arm frame is connected to a protective arm through a number of swing rods hinged on both sides. Rope net, the end of the telescopic jib far away from the lower jib is hinged to support the jib.

The further improvement of the present invention is that: the telescopic boom includes a multi-stage arm body that is controlled by the boarding control box to expand and contract from the outside to the inside step by step, the left and right sides of the front and rear ends of the outermost layer of the arm body, and the rest of the arm body The left and right sides of the front end of the front end are respectively fixedly connected to one ear, and the outer ends of the ear are hinged to the yaw rod that is stretched out and folded back along the length direction of the telescopic boom frame through a vertically arranged pin shaft, and the side ear and the yaw rod are adjacently arranged. The position of the pin shaft is also provided with a positioning hole and a positioning pin for positioning the yaw bar at a position perpendicular to the telescopic boom; the yaw bar is equipped with a protective rope net through uniformly distributed pull rings.

The further improvement of the present invention is that: the end of the yaw rod away from the side ear is fixedly connected to a connecting plate whose upper end protrudes from the upper side of the yaw rod, and the upper part of the connecting plate is hinged to a long rod-shaped structure that unfolds and folds back along the length direction of the yaw rod. The guardrail, the lower part of the guardrail and the connecting plate are provided with locking pin holes that match each other to limit the perpendicularity of the guardrail and the sway bar. Pulleys for supporting overhead wires.

A further improvement of the present invention is that: a bracket is provided under the yaw bar, and the bracket includes a vertical strut and an oblique strut, the upper end of the vertical strut is connected with the side ear, and the lower end is fixedly arranged on the The side of the arm body of the telescopic boom frame; one end of the oblique strut is bolted to the end of the sway rod away from the side ear, and the other end of the oblique strut is bolted to the lower end of the vertical strut.

The further improvement of the present invention is that: the support arm frame includes a telescopic ladder hinged at the front end of the innermost arm body of the telescopic boom frame. The opposite chute arranged along the length direction of the upper ladder is arranged on the front side or the rear side of the two handrails of the ladder. The distance between the two handrails of the lower ladder is smaller than the distance between the two handrails of the upper ladder. The upper ends are respectively provided with sliders fitted in the chute; a supporting oil cylinder is connected between the rear of the upper part of the upper ladder and the lower part of the front end of the innermost arm body of the telescopic boom frame, and the rear of the upper ladder is also provided with a driving edge of the lower ladder. Drive cylinder for ladder sliding.

The further improvement of the present invention is that: the outrigger vertical oil cylinder is connected to both ends on the left side under the sub-frame through horizontally arranged movable outriggers, and the fixed end of the movable outriggers is connected to the right side under the sub-frame ; The telescopic end of the movable outrigger is fixedly connected with the cylinder body of the outstretched vertical oil cylinder.

A further improvement of the present invention is that: the hydraulic lifting platform includes a scissor lifting frame that is set on the sub-frame through the base and is lifted by hydraulic control, and the top of the scissor lifting frame is fixedly equipped with a manned working bucket.

The further improvement of the present invention is that: the left and right sides of the rear part of the auxiliary frame are respectively provided with a set of hydraulic lifting platforms.

Owing to having adopted above-mentioned technical scheme, the technical progress that the present invention obtains is:

The invention can quickly and conveniently realize the spanning of the overhead wire at the work site through the vehicle body carrying the mechanically assembled spanning frame, and has the advantages of reasonable structure, short construction period and reusability.

The invention improves the strength of the car body by means of the combination of the main frame and the sub-frame, and enables the car body to bear relatively heavy loads. During the wire-stretching operation, the vertical oil cylinders arranged on both sides of the sub-frame directly extend downwards to support the car body from the ground, which occupies a small space and only needs to occupy one lane where the car body is parked. By occupying the side lane, it is not necessary to take cut-off control on the road to ensure smooth traffic operation. The movable outrigger and the outrigger vertical oil cylinder arranged on the left side of the auxiliary frame stably support the car body when the telescopic boom is extended out, preventing the car body from rolling over.

The telescopic arm frame of the present invention is equipped with protective rope nets through the sway bars hinged on both sides, which can quickly and efficiently set up an aerial passage for operators to pass, and operators can easily drag the overhead wires from one side of the road to the other. side, so as to complete the task of crossing the overhead wire, overcome the problem that the end of the overhead wire is easy to fall from the tackle in the traditional technology, greatly improve the construction efficiency, and at the same time improve the safety of operators and road pedestrians during the construction process. In the present invention, the end of the yaw bar away from the side ear is provided with a guardrail, which can reduce the operator from falling and rolling during work, and improves the safety of the operator working at heights. In the present invention, rollers supporting overhead wires are arranged on the upper side of the front and rear ends of the telescopic arm, which is convenient for the operator to drag the overhead wires, and avoids damage to the overhead wires caused by the rack body scratching the insulation of the overhead wires. The arm body of telescopic arm among the present invention is made of square pipe, and the staff mainly walks on the telescopic arm when dragging the overhead wire, and the upper side of the square pipe is a plane, which is more convenient for staff to walk like this. In the present invention, the yaw rod is hinged at the end of the side ear away from the side of the telescopic arm, and the length of the upper side ear of each segment of the arm body of the telescopic arm is less than the length of the upper side ear of the adjacent segment of the arm body located at the front end of the arm body. When the present invention is in the contracted state, the yaw bars on the arm bodies of each level will be arranged in an orderly manner step by step, and the structure is more compact, which is convenient for transportation and storage. In the present invention, a bracket for lifting the yaw bar is provided below the yaw bar. The bracket includes a vertical strut and an oblique strut. The lower end of the oblique support rod is bolted to the lower end of the vertical support rod. This arrangement can make the yaw bar and the bracket form a triangular structure, greatly increase the load-bearing capacity of the yaw bar, and increase the safety of the present invention.

The support arm frame of the present invention plays the role of support on the other side of the car body, and the support oil cylinder ensures the angle between the support arm frame and the telescopic arm frame. Workplaces of different heights. Through the cooperation of the slide block and the chute, the present invention can make the expansion and contraction process of the telescopic ladder more stable, reduce the shaking of the ladder, and improve the safety of the present invention.

In the present invention, a symmetrical hydraulic lifting platform is arranged at the tail of the sub-frame, which is convenient for operators to go up and down on any side and carry tools. Telescoping boom for service and maintenance.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the present invention;

The front view of the present invention of Fig. 2;

Fig. 3 is the back view of the present invention;

Fig. 4 is a top view of the present invention;

Fig. 5 is a partial structural diagram of the car body support assembly at the rear of the sub-frame of the present invention;

Fig. 6 is a structural representation of the outstretched vertical oil cylinder of the present invention;

Fig. 7 is the unfolded structural diagram of the telescopic boom frame of the present invention (the protective rope net is not installed);

Fig. 8 is a partial structural schematic diagram of the yaw rods connected to the arm bodies of various levels on the telescopic boom frame of the present invention;

Fig. 9 is a structural schematic diagram of the support arm frame of the present invention.

Among them, 1. Cab, 2. Hydraulic oil tank, 3. Main frame, 4. Sub-frame, 5. Walking platform, 6. Car body support assembly, 6-1, vertical oil cylinder, 6-2, outer Stretching vertical oil cylinder, 6-3, box-shaped slider, 6-4, horizontal oil cylinder, 7, hydraulic lifting platform, 8, support arm frame, 9, lower arm frame, 10, rotary platform, 11, telescopic arm frame, 11 -1, outermost arm body, 11-2, innermost arm body, 11-3, side ear, 12, yaw bar, 12-1, oblique strut, 12-2, pull ring, 12-3, Vertical pole, 12-4, positioning hole, 12-5, pin shaft, 13, wheel, 14, console for getting off the car, 15, hose reel, 16, slewing bearing, 17, control box for getting on the car, 18 , telescopic ladder, 18-1, upper ladder, 18-2, lower ladder, 18-3, chute, 18-4, slide block, 18-5, support oil cylinder, 19, pulley, 20, guardrail.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

A mobile fast spanning frame, the structure of which is shown in Figures 1 to 4, includes a car body, a sub-frame 4, a car body support assembly 6, a hydraulic lifting platform 7, and a rotary operation assembly.

The vehicle body is driven by wheels 13 and includes a cab 1 and a main frame 3 . The driver's cab 1 is located at the front end of the car body and is used to control the overall movement of the straddle frame. The main frame 3 is connected to the rear end of the driver's cab 1 and is a rectangular plate structure.

The shape of the subframe 4 is basically the same as that of the main frame 3 , the subframe 4 is fixedly arranged on the upper end surface of the main frame 3 , and the hydraulic oil tank 2 is arranged at the front of the subframe 4 . The top surface of the auxiliary frame is embedded with a walking platform 5 . The vehicle body support assembly 6 is arranged below the sub-frame 4 and is used to support the entire vehicle body in the air when the vehicle body is parked. The slewing operation assembly is arranged in the middle part above the sub-frame 4 for realizing angle adjustment and straddling operation. A set of hydraulic lifting platforms 7 are respectively arranged on the left and right sides of the tail of the subframe 4 for transporting operators, cables, etc. to a required height.

The partial structure of described car body support assembly 6 is as shown in Figure 5, comprises vertical oil cylinder 6-1, overhanging vertical oil cylinder 6-2, getting off the console 14. Wherein the vertical oil cylinder 6-1 is used to vertically support the whole car body to break away from the ground after the car body is parked; Stretch out telescoping end effect, overhanging vertical oil cylinder 6-2 stretches out outwards, prevents car body from rolling over in the process of overhanging operation. The left side of subframe 4 is provided with getting off console 14, and getting off console 14 controls each vertical oil cylinder 6-1, stretching vertical oil cylinder 6-2 telescopically and moves up and down respectively.

There are four vertical oil cylinders 6-1, which are respectively fixedly installed at the front and rear ends of the left and right sides below the sub-frame 4. Every two vertical oil cylinders 6-1 corresponding to each other on both sides of the vehicle body are connected to the bottom of the sub-frame 4 through a support column. The support column includes a crossbeam and a vertical beam, the crossbeam connects the two vertical oil cylinders 6-1 on the left and right sides, the length of the crossbeam is slightly smaller than the width of the sub-frame 4, and the ends of the left and right ends of the crossbeam are aligned in the vertical direction. A mounting hole is opened respectively, and the cylinder body of the vertical oil cylinder 6-1 is interspersed and fixed in the mounting hole. A lock valve is set on the upper end surface of the beam corresponding to the position of the mounting hole to prevent the vertical oil cylinder 6-1 from sliding down. The position of the lower end surface corresponding to the mounting hole is provided with a nut which is tightly connected with the cylinder body of the vertical oil cylinder 6-1. The vertical beam is arranged vertically upwards in the middle of the cross beam, and the top of the vertical beam is fixedly connected with the auxiliary frame 4 . In order to improve the strength of the support column, oblique reinforcements are also arranged between the vertical beam and the cross beam of the support column.

Described movable support leg is provided with two corresponding outstretched vertical oil cylinders 6-2, comprises a box-shaped slide block 6-3 and a horizontal oil cylinder 6-4, as shown in Figure 6, described box-shaped slide block 6-3 is A square thin-walled frame with one end open, the horizontal oil cylinder 6-4 is sleeved in the box-shaped slider 6-3, when the horizontal oil cylinder 6-4 is in the recovered state, the box-shaped slider 6-3 wraps the entire horizontal oil cylinder 6 -4, isolation protection horizontal oil cylinder 6-4. The installation and connection method between the movable legs and the subframe 4 is shown in Figure 5. A section of box body with openings at both ends in the horizontal direction is fixed horizontally below the subframe, and the inner side wall of the box body is set in line with the The slideway parallel to the width direction of the auxiliary frame, the size of the slideway is correspondingly matched with the outer surface size of the box-shaped slide block 6-3, the box-shaped slide block 6-3 is sleeved in the box, and the box-shaped slide block 6-3 and the horizontal oil cylinder 6-4 are all horizontally arranged, and the top of the cylinder body of the horizontal oil cylinder 6-4 is fixedly connected to the right side below the subframe 4 through a bracket, and the end of the piston rod of the horizontal oil cylinder 6-4 is fixedly connected to the box-shaped slider 6-3. Horizontal oil cylinder 6-4 is subject to the control of getting off the console 14, and when the piston rod stretches, it drives the box-shaped slide block 6-3 to slide to the left in the casing along the slideway.

The outstretching vertical oil cylinder 6-2 is corresponding to the movable outrigger, and there are two in total, which are respectively arranged at the two ends on the left side below the sub-frame 4 . At the left end of the box-shaped slide block 6-3 of movable support leg, promptly offer a through hole vertically with the opposite end of the open end of box-shaped slide block 6-3, the cylinder block of overhanging vertical oil cylinder 6-2 wears and fixes inside the via.

The rotary operation assembly includes a rotary platform 10 , a boarding control box 17 , a lower arm frame 9 , a telescopic arm frame 11 and a support arm frame 8 . The slewing platform is arranged in the middle of the top surface of the subframe 4, and the slewing support 16 driven by the motor through the transmission part is used as a power component. The lower part of the slewing support 16 is embedded in the center of the subframe 4 and the walking platform 5 In the hole, the top of the slewing support 16 is provided with a boss extending out of the center hole, the bottom of the boss is provided with balls, and the top surface of the slewing support 16 is equipped with a rotary platform 10 . The slewing platform 10 realizes the slewing motion through the slewing support 16, thereby controlling the steering angle of the whole slewing work assembly.

The boarding control box 17 is installed on the rotary platform 10, and the boarding control box 17 is provided with an operating handle or an operating button for controlling the hydraulic lifting platform 7 and the whole rotary operation assembly including the rotary platform 10.

The lower boom 9 is a long-arm rod-shaped structure connecting the rotary platform 10 and the telescopic boom 11. The lower end of the lower boom 9 is hinged to the rotary platform, and the upper end of the lower boom 9 is hinged to the telescopic boom 11. A hydraulic cylinder for controlling extension and retraction is connected between the platform and the lower boom 9 and the telescopic boom 11 . A hose reel 15 is also provided at the hinged position of the lower boom 9 and the telescopic boom 11 for winding a high-pressure rubber hose filled with hydraulic oil, and the high-pressure rubber hose provides hydraulic oil for each hydraulic cylinder on the rotary operation assembly.

The structure when the telescopic boom 11 is fully expanded is shown in Figure 7 (the protective rope net is not shown in the figure), the telescopic boom 11 includes a multi-stage arm body that is sleeved from the outside to the inside. In this embodiment, there are four The segmented arm body is formed by socketing step by step from the outside to the inside, and each segment of the arm body is made of a square tube, of which the outermost arm body 11-1 has the largest cross-sectional size, and the innermost arm body 11-2 has the largest cross-sectional size minimum. The inner cavity of the outermost arm body 11-1 of the telescopic boom 11 is provided with a hydraulic cylinder, and the hydraulic push rod at the front end of the hydraulic cylinder is connected with the innermost layer arm body 11-2, which can be controlled by controlling the forward and backward movement of the hydraulic push rod. The telescopic arm 11 is extended or shortened. A pulley 19 is respectively arranged on the rear end top surface of the outermost layer arm body 11-1 and the front end top surface of the innermost layer arm body 11-2 of the telescopic boom frame, for supporting overhead wires to be erected.

As shown in Fig. 8, a side ear 11-3 is respectively welded on the left and right sides of the front and rear ends of the outermost arm body 11-1, and side ears 11-3 are also welded on the left and right sides of the front end of each section of the arm body. An auxiliary ear is also welded on the side of each segment of the arm body and below the ear, and the length of the auxiliary ear corresponds to the length of the corresponding ear above it. The side ear 11-3 is made of a square tube, and its length direction is perpendicular to the length direction of the telescopic boom. One end of each side ear 11-3 is welded on the arm body, and the other end is provided with pin holes arranged along the vertical direction. The yaw rod 12 is hinged through the pin shaft 12-5 in the pin hole at the end of the side ear 11-3, and the yaw rod 12 can rotate around the pin shaft 12-5 and spread out to the outside away from the telescopic boom. Positioning holes 12-4 are provided on the side ears 11-3 and the yaw bar 12. When the yaw bar 12 rotates to a position perpendicular to the telescopic boom, the locating holes on the side ears correspond to the positioning holes on the yaw bar. Coincidentally, at this time, a positioning pin is inserted in the positioning hole 12-4, and the yaw bar 12 is fixedly connected with the side ear 11-3.

One end of the yaw bar 12 away from the side ear is provided with a connecting plate, the connecting plate is a steel plate arranged in a vertical direction, and a long bar-shaped guardrail 20 is hingedly arranged on the top of the connecting plate by a horizontal pin, and the bottom of the guardrail 10 is connected to the Matching locking pin holes are provided on the board to limit the guardrail 20 to be perpendicular to the sway bar 12 . The working principle of the locking pin hole is similar to the positioning hole and positioning pin between the yaw bar and the side ear. When the yaw bar is deployed, the guardrail can stand vertically and be perpendicular to the axial direction of the yaw bar; when the yaw bar is retracted When approaching the telescoping boom, the guardrail rotates down and lays flat on the sway bar.

A bracket is arranged below the yaw bar 12 for enhancing the load-bearing capacity of the yaw bar. The bracket includes a vertical strut 12-3 and an oblique strut 12-1. The upper end of the vertical strut 12-3 is fixedly connected with the end of the sway bar 12 close to the side ear, and the lower end of the vertical strut 12-3 is hinged on the auxiliary side lug. One end of the oblique strut 12-1 is connected with the lower end of the vertical strut 12-3 through a bolt, and the other end is connected with the end of the sway rod 12 away from the side ear through a bolt.

The yaw bar 12 in this embodiment is made of steel pipes. There are several draw rings 12-2 evenly distributed along the length direction on the yaw bar 12. The draw rings 12-2 include one large and one small rings fixedly arranged in the shape of "8". Two rings, wherein the big ring hoop is set on the outer circumference of the yaw bar 12 , and the small ring is located below the yaw bar 12 . The protective rope net is a net made of high-strength nylon ropes, and the grid nodes of the corresponding draw ring 12-2 position on the protective rope net are bound in the small ring of the draw ring 12-2 by hooks or steel wires.

The length of the side ears fixed on the arm body gradually increases from the outer layer to the inner layer, the side ear on the outermost layer arm body 11-1 is the shortest, and the side ear on the innermost layer arm body 11-2 is the longest. When the yaw rod is in the retracted state, the yaw rod, the telescopic boom, and each yaw rod are parallel to each other, and the distance between the yaw rod on the outermost arm body and the telescopic boom is the closest, and the innermost The distance between the yaw bar on the arm body and the telescopic boom is the farthest. Such arrangement can make the structure of the telescopic boom frame more compact when it is in the recovery state, which is convenient for transportation and storage.

The structure of the support arm frame 8 is shown in Figure 9, comprising a telescopic ladder composed of a socketed upper ladder 18-1 and a lower ladder 18-2, the top of the upper ladder 18-1 is hinged on the innermost layer through a pin The front end of the arm body 11-2, the rear side of the two handrails of the upper ladder 18-1 are provided with openings relative to the chute 18-3, and the chute 18-3 is arranged along the length direction of the upper ladder. The spacing of the two handrails of the lower ladder 18-2 is less than the spacing of the two handrails of the upper ladder 18-1, and the upper part of the outer sides of the two handrails of the lower ladder 18-2 is provided with a slide block 18-4, and the slide block 18-4 is assembled on the In the chute, the upper and lower ends of the chute are provided with limit devices that limit the sliding range of the ladder. A driving oil cylinder is arranged at the back of the telescopic ladder, and the arrangement direction of the driving oil cylinder is parallel to the upper ladder and the lower ladder. The top of the cylinder block of the drive cylinder is fixedly connected with the upper ladder 18-1, and the end of the piston rod of the drive cylinder is fixedly connected with the bottom end of the lower ladder 18-2. The drive cylinder can drive the lower ladder to slide up and down along the chute, so that the telescopic ladder elongation or shortening. A disk-shaped base is also fixedly installed at the end of the piston rod of the driving oil cylinder, which is used to increase the contact area between the support arm frame and the ground, and strengthen the supporting capacity of the support arm frame. A support cylinder 18-5 is connected between the rear of the upper part of the upper ladder 18-1 and the lower part of the front end of the innermost arm body 11-2, which is used to spread the upper ladder and maintain the angle between the upper body and the innermost arm body .

The hydraulic lifting platform 7 is set on the walking platform 5 at the position corresponding to the tail of the sub-frame 4 through the base, the base is made of a square thick steel plate, two side plates are welded on both sides of the base, and the side plates correspond to the four sides of the base. The side wheel boards protruding from the bottom of the base are set at the corners, the rollers are installed on the inner side of the side wheel boards, and the sliding rails are installed on the inner side of the walking platform corresponding to the side boards of the base. position set screw. A scissor lifting frame is fixed above the base. The scissor lifting frame is composed of two opposite hinged frames. A working bucket, a jacking oil cylinder is connected between the working bucket and the base.

The working process of the present invention is as follows: the car body moves to the working place; after parking, operate the console for getting off the car to make the four vertical oil cylinders move downward to support the whole car body to ensure that the tires are off the ground; control the movable legs to move outward Stretch out, two outstretched vertical oil cylinders support the ground to prevent the car body from turning over; the operator operates the control box on the car, raises the telescopic arm frame about 45°, and raises the lower arm frame about 45°, so that the telescopic arm frame is in contact with the ground Parallel, about 5.5 meters from the ground; other operators carry overhead wires and operating tools to board the hydraulic lifting platform, raise the hydraulic lifting platform, the height is suitable for operating the yaw bar, and the operator unfolds the horizontal swing on the hydraulic lifting platform Rods and guardrails, fix the sway rods and guardrails with pin shafts; continue to raise the telescopic boom frame about 60°, continue to raise the lower boom frame about 60°, make the telescopic boom frame parallel to the ground, and the distance from the ground is about 6.5 meters; The supporting arm frame and the telescopic boom frame maintain an angle of about 150°; operate the rotation of the rotary platform, control the alignment angle of the rotary platform, and make the extension direction of the telescopic boom frame the area that needs to be crossed; control the multi-stage arm body of the telescopic boom frame Expand forward, and at the same time control the support arm frame to be perpendicular to the ground, stretch out the ladder, retract the outreach vertical oil cylinder, the operator climbs from the hydraulic lifting platform to the telescopic boom frame, and pulls the overhead wire along the arm body of the telescopic boom frame. Go to the side of the lower boom frame, after the overhead wire spanning construction work is realized, go down from the telescopic ladder to the ground, and the support boom frame, telescopic boom frame, and lower boom frame can be retracted sequentially in the reverse order of the unfolding sequence.

Claims (8)

1. A mobile fast spanning frame, characterized in that: it includes a car body provided with a main frame (3), and an auxiliary car with a walking platform (5) embedded on the top surface is fixedly installed on the main frame (3) frame (4), the sub-frame (4) is provided with a car body support assembly (6) for supporting the entire car body in the air, the middle part of the sub-frame (4) is provided with a rotary operation assembly, and the tail of the sub-frame A hydraulic lifting platform (7) for carrying operators up and down is provided; The vehicle body support assembly (6) includes four vertical oil cylinders (6-1) and two extended vertical oil cylinders (6-2) arranged under the sub-frame and respectively controlled by the console (14) for getting off the vehicle , the vertical oil cylinder (6-1) is fixedly arranged at both ends of the left and right sides below the sub-frame, and the overhanging vertical oil cylinder (6-2) is connected to the left ends of the lower side of the sub-frame; The slewing operation assembly includes a slewing support (16) driven by a motor and embedded on the sub-frame (4) and the walking platform (5). The slewing support (16) is fixedly connected to the slewing platform (10). The boarding control box (17) for controlling the movement of the hydraulic lifting platform (7) and the rotary operation assembly is installed on the platform (10). The rotary platform is hinged with a lower arm frame (9) with a long arm structure. ) is hinged to a telescopic jib (11) at one end far away from the slewing platform (10), and the telescopic jib (11) is hooked to a protective rope net through a number of yaw rods (12) hinged on both sides, and the telescopic jib (11) ) is hinged to support the boom (8) at one end away from the lower boom (9). 2. The mobile fast-spanning frame according to claim 1, characterized in that: the telescopic boom frame (11) includes a multi-stage arm that is telescopically controlled from the outside to the inside by the control box (17) on the vehicle Body, the left and right sides of the front and rear ends of the outermost arm body (11-1), and the left and right sides of the front end of the remaining arm body are respectively fixedly connected to one side ear (11-3), and the outer end of the side ear (11-3) The vertically arranged pin shaft (12-5) is articulated along the length direction of the telescopic boom (11) and the sway bar (12), which is extended and folded back, is connected to the side ear (11-3) and the sway bar (12). A positioning hole (12-4) and a positioning pin for positioning the yaw bar (12) at a position perpendicular to the telescopic boom frame are also provided adjacent to the pin shaft (12-5); the yaw bar (12) Install the protective rope net through uniformly distributed pull rings (12-2). 3. The mobile fast-span frame according to claim 2, characterized in that: one end of the yaw bar (12) away from the side ear (11-3) is fixedly connected to an upper end protruding from the upper end of the yaw bar (12). On the connecting plate on the side, the upper part of the connecting plate is hinged to a long bar-shaped guardrail (20) that is unfolded and folded along the length direction of the sway bar (12), and the lower part of the guardrail (20) and the connecting plate are provided with matching limited guardrails (20) The locking pin hole perpendicular to the yaw bar (12), the front end of the innermost arm body (11-2) and the rear end of the outermost arm body (11-1) of the telescopic boom are both set for bearing Pulley (19) for carriage empty wire. 4. The mobile fast-span frame according to claim 2, characterized in that: a bracket is provided under the sway bar (12), and the bracket includes a vertical strut (12-3) and a diagonal strut Rod (12-1), the upper end of the vertical support rod (12-3) is connected with the side ear (11-3), and the lower end is fixedly arranged on the side of the arm body of the telescopic boom (11) through an auxiliary side ear; the oblique support rod ( One end of 12-1) is bolted to the end of the sway bar (12) away from the side ear, and the other end of the oblique strut (12-4) is bolted to the lower end of the vertical strut (12-3). 5. The mobile fast-span frame according to claim 1, characterized in that: the support arm frame (8) includes a telescopic ladder (18) hinged at the front end of the innermost arm body (11-2) of the telescopic arm frame ), the telescopic ladder includes an upper ladder (18-1) and a lower ladder (18-2) which are composed of two handrails and several ladder steps, and the front or rear sides of the two handrails of the upper ladder (18-1) Set the opposite chute (18-3) arranged along the length direction of the upper ladder, the distance between the two handrails of the lower ladder (18-2) is smaller than the distance between the two handrails of the upper ladder (18-1), and the distance between the two handrails of the lower ladder (18-2) The upper ends of the outer surfaces of the two handrails) are respectively equipped with sliders (18-4) fitted in the chute; 2) A supporting oil cylinder (18-5) is connected between the lower part of the front end, and a driving oil cylinder for driving the lower ladder (18-2) to slide along the upper ladder (18-1) is also provided behind the upper ladder (18-1). 6. The mobile fast-spanning frame according to claim 1, characterized in that: the outrigger vertical oil cylinder (6-2) is connected to the left side under the sub-frame (4) through a horizontal movable outrigger At both ends, the fixed end of the movable outrigger is connected to the right side below the sub-frame; the telescopic end of the movable outrigger is fixedly connected with the cylinder body of the overhanging vertical oil cylinder. 7. The mobile fast spanning frame according to claim 1, characterized in that: the hydraulic lifting platform (7) includes a scissor lifting frame set on the sub-frame (4) through the base and controlled by hydraulic pressure, The top of the scissor lift frame is fixedly equipped with a manned working bucket. 8. The mobile fast-spanning frame according to any one of claims 1 or 7, characterized in that: a set of hydraulic lifting platforms (7) are provided on the left and right sides of the tail of the sub-frame (4).