An overhead crossing device

Abstract

The present invention discloses a crossing frame device, wherein a servo motor drives a rotary reducer to rotate, and an output gear shaft of the reducer meshes with an outer ring gear of a driving disk in a driving chassis assembly, so that the driving disk in the driving chassis assembly rotates, and a sliding block and a sliding plate run along a trajectory, so as to drive a bottom-level scissors-fork machine to rise and fall, and a middle-level scissors-fork machine, a top-level scissors-fork machine, a top support rod and a top assembly are moved up and down with the bottom-level scissors-fork machine, and the bottom-level scissors-fork machine moves to a longitudinal support rod therein, which is provided in each level of the scissors-fork machine. When the longitudinal support rod is in a completely vertical state, the longitudinal support rod in the top-level scissors-fork machine also moves to a vertical state, and an insertion column on the sliding plate in the chassis assembly continues to rise and is inserted into the longitudinal support rod in the bottom-level scissors-fork machine and lifts up an inner push rod of the longitudinal support rod until the inner push rod of the longitudinal support rod in the top-level scissors-fork machine supports the top assembly.

Description

Technical Field

[0001] The invention relates to a spanning frame device, in particular to a universal spanning frame device capable of rapid assembly and disassembly, and belongs to the technical field of engineering construction. Background Art

[0002] At present, when a new conductor line is installed in the field, it is laid across a road or an existing line. The new line is installed at a relatively high height; or although the height of the new line is not high, the sag is in a hanging position. It is necessary to build a steel pipe, bamboo or wooden frame under the existing line, and lay an insulating net on top of the frame to prevent the conductor from temporarily passing over it during the installation of the new line. However, most of the existing crossing frames are fixed models built on site using materials such as bamboo or wood. This traditional construction method has a long arrangement and disassembly cycle, and is not universal and adjustable. It is greatly affected by the external environment and the level of personnel, and its own strength, stability and wind resistance are poor. Summary of the invention

[0003] The purpose of the present invention is to provide a crossing frame device with reasonable structure, convenient operation and high stability, which can be flexibly built as needed and realize the function of rapid loading and unloading.

[0004] The present invention is achieved through the following technical solutions: a crossing frame device, a servo motor drives the rotary reducer to rotate, the reducer output gear shaft meshes with the outer ring gear of the driving disk in the driving chassis assembly, the driving disk in the driving chassis assembly rotates, the sliding block and the skateboard run according to the trajectory, driving the bottom layer scissors fork machine to rise and fall, the middle layer scissors fork machine, the top layer scissors fork machine, the top support rod and the top assembly and the bottom layer scissors fork machine to move up and down, the bottom layer scissors fork machine moves to the longitudinal support rod therein, the longitudinal support rod is provided in each layer of scissors fork machine, when the longitudinal support rod is fully vertical, the longitudinal support rod in the top layer scissors fork machine also moves to the vertical state, the insertion column on the skateboard in the chassis assembly continues to rise and inserts into the longitudinal support rod in the bottom layer scissors fork machine and lifts the inner push rod of the longitudinal support rod until the inner push rod of the longitudinal support rod in the top layer scissors fork machine supports the top assembly.

[0005] Furthermore, the chassis assembly includes a rectangular base plate, and four groups of base plate sliding assemblies are symmetrically arranged along the diagonal line of the base plate. The ends of the sliding assemblies are inserted into the track grooves on the driving disk. The component at the center of the base plate is the slip ring sleeve in the driving chassis assembly. The slip ring sleeve is welded at the center position of the driving disk. The slip ring sleeve rotates with the driving disk. The skateboard is a movable component and is directly mounted on the four legs of the base plate. The plug column is vertically installed on the skateboard. The slip ring sleeve rotates to drive the skateboard to move up and down. The ring plate is installed on the four legs of the base plate by bolts. Its function is to limit the upward movement range of the skateboard.

[0006] Further, a drive disk is also connected below the bottom plate. The center of the drive disk has a drive shaft connected to the bottom plate, and arc-shaped grooves are spirally arranged on the disk body of the drive disk.

[0007] Further, the sliding assembly includes a sliding block, a slide rail, and slide rail blocks at both ends of the slide rail. The sliding block makes a reciprocating linear motion along the slide rail and is limited by the slide rail blocks arranged at both ends of the slide rail; the slide rail blocks are of rigid structure, the protruding shafts at the bottom thereof are inserted into the track grooves on the drive disk, the holes in the middle part thereof penetrate through the slide rail fixed on the bottom plate, and the holes on both sides of the top thereof are connected to the scissor lift by pin shafts.

[0008] Further, the sliding block is composed of a sliding block body and a slide rail connecting part below it.

[0009] Further, the sliding plate includes a drive shaft connecting part and blades on its outer side. The drive shaft connecting part is annular and sleeved outside the drive shaft of the drive disk; there are four blades. Four through holes are evenly distributed on the annular side surface of the sliding plate. The slide rod passes through these four holes and is inserted into the sliding grooves arranged on the outer side wall of the drive shaft connecting part. The slide ring sleeve rotates to drive the slide rod to move along the track, thereby driving the sliding plate to move up and down.

[0010] Further, the scissor lift includes a scissor lift support frame, a scissor link structure arranged inside the scissor lift support frame, a long scissor lift rod, and a longitudinal support rod. The top end of the scissor link structure is connected to the bottom of the upper-layer scissor lift support frame, and the bottom end is connected to the lower-layer scissor lift support frame. Among them, the lower end of the long scissor lift rod at the bottom layer is connected to the slide rail block by a pin shaft, the middle scissor lift is connected to the upper end of the long scissor lift rod at the bottom layer by a pin shaft, the longitudinal support rod is a movable component, the lower end of the long scissor lift rod at the top layer is connected to the middle scissor lift by a pin shaft, and the upper end of the top support rod penetrates into the top slide rail in the top assembly. This scissor mechanism is a pure mechanical structure. By rotating the drive disk, the slide rail block makes a reciprocating motion on the bottom plate slide rail. The slide rail block drives the lower end of the long scissor lift rod at the bottom layer to reciprocate, so that the long scissor lift rod jacks up the scissor lift to realize the rise or fall of the scissor lift. The lubricating grease nozzle is used to inject grease to ensure that there is no jamming in the rotation of each connection part.

[0011] Furthermore, the top assembly includes a top plate and a servo motor assembly installed on one side of the top plate; the top plate is rectangular, and four groups of top plate sliding components are symmetrically arranged along its center line. Among them, the load-bearing beam assembly includes a load-bearing beam, a stop block, and a counterweight. The load-bearing beam is directly inserted into the lower hole of the top spanning rod bracket, and its movement range is limited by installing a stop block on the top surface of the load-bearing beam. The spanning rod assembly includes a load-bearing guide rail groove and the first to fourth stage guide rail grooves, and the guide rail grooves are rigidly connected by racks. The spanning rod assembly is installed on the top spanning rod bracket, and the output gear shaft of the servo motor meshes with the rack at the bottom of the fourth stage guide rail groove. The servo motor drives the output gear shaft to rotate to drive the rack of the fourth stage guide rail groove to move back and forth, and each guide rail groove is linked by the rack to achieve the telescoping of the spanning rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The spanning frame device provided by the present invention can flexibly arrange the spanning frame device. Compared with the traditional method in the past, it adopts a simple installation method similar to building blocks, with a simple structure, high mechanization intensity, fast erection speed, strong load-bearing capacity, high safety performance, strong versatility, convenient debugging and maintenance, reducing the erection difficulty and cost, and being convenient for debugging and maintenance, reducing the difficulty of arrangement and withdrawal. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the spanning frame device of the present invention.

[0014] In the figure: Part 1 - chassis assembly; Part 2 - bottom layer scissor lift; Part 3 - middle layer scissor lift; Part 4 - top layer scissor lift; Part 5 - top support rod; Part 6 - top assembly.

[0015] Figure 2 It is a schematic structural diagram of the chassis assembly of the present invention.

[0016] In the figure: Part 1 - bottom plate; Part 2 - slide rail block; Part 3 - slide rail; Part 4 - drive disk; Part 5 - slip ring sleeve; Part 6 - sliding block; Part 7 - support leg; Part 8 - ring plate; Part 11 - slide plate; Part 12 - insertion post; Part 13 - slide rod; Part 14 - slide rod locking plate.

[0017] Figure 3 It is a schematic structural diagram of the drive disk of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the sliding block of the present invention.

[0019] Figure 5 It is a schematic structural diagram of the slide plate of the present invention.

[0020] Figure 6 It is a schematic structural diagram of the scissor lift of the present invention.

[0021] In the figure: Item 1 - middle horizontal sliding assembly; Item 2 - scissor lift long rod; Item 3 - pin shaft; Item 4 - cotter pin; Item 5 - longitudinal support rod; Item 6 - lubricating oil nozzle.

[0022] Figure 7 It is a schematic diagram of the top support rod structure of the present invention.

[0023] Figure 8 It is a schematic diagram of the top assembly structure of the present invention.

[0024] In the figure: Item 1 - top plate welding assembly; Item 2 - slide rail block; Item 3 - slide rail; Item 7 - spanning rod bracket; Item 13 - load-bearing beam assembly; Item 14 - spanning rod assembly; Item 16 - private service motor assembly. DETAILED DESCRIPTION

[0025] The present embodiment proposes a crossing frame device, the structure of which is shown in the figure. The working process of the present invention is as follows: the power device drives the driving disk of the middle part 4 of the chassis assembly 1 to rotate, and the sliding block of the middle part 6 of the chassis assembly 1 and the sliding plate of the part 11 follow the trajectory, that is, the driving disk of the middle part 4 of the chassis assembly 1 rotates counterclockwise, and the sliding block of the middle part 6 of the chassis assembly 1 slides inward to drive the bottom scissor fork machine 2 to rise, and the middle scissor fork machine 3, the top scissor fork machine 4, the top support rod 5 and the top assembly 6 and the bottom scissor fork machine 2 follow the upward movement, and when the sliding block of the middle part 6 of the chassis assembly 1 slides inward to the end of the trajectory, the bottom scissor fork machine 2 moves to the longitudinal support When the rod is in a completely vertical state, the longitudinal support rod in the top-level scissors-fork machine 4 also moves to a vertical state. At this time, the driving disk of the component 4 in the chassis assembly 1 is still rotating counterclockwise, and the slide plate of the component 11 in the chassis assembly 1 begins to rise with it until the insertion column on the slide plate of the component 11 in the chassis assembly 1 is inserted into the longitudinal support rod in the bottom-level scissors-fork machine 2 and lifts the inner push rod of the longitudinal support rod, until the inner push rod of the longitudinal support rod in the top-level scissors-fork machine 4 supports the top assembly 6. At this time, the new crossing frame device is fully unfolded to complete the crossing frame erection operation, and then the private service motor of the component 16 in the top assembly 6 is run to control the crossing rod of the component 14 in the top assembly 6 to extend for the line crossing operation.

[0026] After completing the line crossing operation, the servo motor of part 16 in the top assembly 6 controls part 14 in the top assembly 6 to retract the crossing rod. The power device drives part 4 in the chassis assembly 1, the driving disc, to rotate clockwise. The slide plate of part 11 in the chassis assembly 1 starts to follow and descend until the insertion post on the slide plate of part 11 in the chassis assembly 1 exits the longitudinal support rod in the bottom layer scissor lift 2, until the inner ejector rod in each longitudinal support rod of the scissor lift retracts and returns to its original position. At this time, the driving disc of part 4 in the chassis assembly 1 is still rotating clockwise, then the sliding block of part 6 in the chassis assembly 1 starts to slide outwards, driving the bottom layer scissor lift 2 to descend. The middle layer scissor lift 3, the top layer scissor lift 4, the top support rod 5, and the top assembly 6 follow the bottom layer scissor lift 2 and descend. When the sliding block of part 6 in the chassis assembly 1 slides outwards to the end point of the track, the bottom layer scissor lift 2 moves until its longitudinal support rod is completely retracted, and the longitudinal support rod in the top layer scissor lift 4 also follows and retracts. At this time, the new type of crossing frame device is completely retracted to complete the operation of withdrawing the crossing frame.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above specific embodiments, and the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An over-crossing frame device, characterized in that: The servo motor drives the rotary reducer to rotate, and the output gear shaft of the reducer meshes with the outer ring gear of the driving disk in the driving chassis assembly, driving the driving disk in the driving chassis assembly to rotate, and the sliding block and the slide plate run according to the trajectory, driving the bottom scissors fork machine to rise and fall, and the middle scissors fork machine, the top scissors fork machine, the top support rod and the top assembly are lifted and lowered with the bottom scissors fork machine. The bottom scissors fork machine moves to the longitudinal support rod, which is provided in each layer of scissors fork machines. When the longitudinal support rod is fully vertical, the longitudinal support rod in the top scissors fork machine also moves to the vertical state, and the plug column on the slide plate in the chassis assembly continues to rise and inserts into the longitudinal support rod in the bottom scissors fork machine and lifts the inner push rod of the longitudinal support rod until the inner push rod of the longitudinal support rod in the top scissors fork machine supports the top assembly; the chassis assembly includes a rectangular bottom plate, and four groups of bottom plate sliding assemblies are symmetrically arranged along the diagonal line of the bottom plate, and the end of the sliding assembly is inserted into the track groove on the driving disk The component at the center of the base plate is the slip ring in the driving chassis assembly, which is welded on the center position of the driving disk and rotates with the driving disk. The slide plate is a movable component and is directly sleeved on the four legs of the base plate. The plug column is vertically installed on the slide plate. The slip ring rotates to drive the slide plate to move up and down. The ring plate is installed on the four legs of the base plate by bolts, and its function is to limit the upward movement range of the slide plate; the slide plate includes a driving shaft connecting part and blades on its outer side, and the driving shaft connecting part is annular and sleeved on the outside of the driving shaft of the driving disk; there are four blades, and four through holes are evenly distributed on the annular side of the slide plate. The slide rod passes through the four holes and is inserted into the slide grooves evenly distributed on the outer wall of the driving shaft connecting part. The slip ring rotates to drive the slide rod to move along the track, thereby driving the slide plate to move up and down; a driving disk is also connected to the bottom of the base plate, and the center of the driving disk has a driving shaft connected to the base plate, and the disk body of the driving disk is spirally arranged with arc grooves.

2. The spanning device according to claim 1, wherein: The sliding assembly includes a sliding block, a sliding rail and sliding rail blocks at both ends of the sliding rail. The sliding block performs reciprocating linear motion along the sliding rail and is limited by the sliding rail blocks arranged at both ends of the sliding rail. The sliding rail block is a rigid structure, and its bottom protruding shaft is inserted into the track groove on the driving disk, and its middle hole penetrates into the sliding rail fixed on the bottom plate, and its top two side surface holes are connected to the scissors fork machine through pins.

3. The span frame device according to claim 1, characterized in that: The sliding block is composed of a sliding block body and a sliding rail connecting part below the sliding block.

4. The spanning frame device according to claim 1, characterized in that: The scissor lift includes a scissor lift support frame, a scissor link structure arranged within the scissor lift support frame, a long scissor lift rod, and a longitudinal support rod. The top end of the scissor link structure is connected to the bottom of the upper-layer scissor lift support frame, and the bottom end is connected to the lower-layer scissor lift support frame. Among them, the lower end of the long rod of the bottom-layer scissor lift is connected to the slide rail block through a pin shaft, the middle scissor lift is connected to the upper end of the long rod of the bottom-layer scissor lift through a pin shaft, the longitudinal support rod is a movable component, the lower end of the long rod of the top-layer scissor lift is connected to the middle scissor lift through a pin shaft, and the upper end of the top support rod penetrates into the top slide rail in the top assembly. This scissor mechanism is a pure mechanical structure. By driving the driving disc to rotate, the slide rail block reciprocates on the bottom plate slide rail. The slide rail block drives the lower end of the long rod of the bottom-layer scissor lift to reciprocate, so that the long rod of the scissor lift jacks up the scissor lift to realize the rise or fall of the scissor lift. The lubricating grease nozzle is used to inject lubricating grease to ensure that there is no jamming in the rotation of each connection part.

5. The span frame device according to claim 1, characterized in that: The top assembly includes a top plate and a servo motor assembly installed on one side of the top plate; the top plate is rectangular, and four groups of top plate sliding components are symmetrically arranged along its center line. Among them, the load-bearing beam assembly includes a load-bearing beam, a stop block, and a counterweight block. The load-bearing beam is directly inserted into the lower hole of the top cross-bar support. The range of its movement is limited by installing a stop block on the top surface of the load-bearing beam. The cross-bar assembly includes a load-bearing guide rail groove and the first to fourth-level guide rail grooves. The guide rail grooves are rigidly connected by racks. The cross-bar assembly is installed on the top cross-bar support. The output gear shaft of the servo motor meshes with the rack at the bottom of the fourth-level guide rail groove. The servo motor drives the output gear shaft to rotate to drive the rack of the fourth-level guide rail groove to move back and forth. Each guide rail groove is linked by a rack to realize the telescoping of the cross-bar.

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