CN102070049A - Vehicle-mounted automatic cable winding and unwinding mechanism - Google Patents

Abstract

A vehicle-mounted automatic retractable mechanism for cables, which consists of a frame, a pair of circular rails, a set of interlocking mechanisms, a set of step-by-step drive mechanisms, a set of friction wheel retractable mechanisms, and several multi-connected cable reel groups; The frame is a rectangular parallelepiped frame conforming to the vehicle standard, and the left and right inner surfaces of the frame are respectively provided with a longitudinal circular track, and several multi-connection cable reel groups are arranged in the frame in sequence according to the front and rear directions, and each multi-connection cable The two ends of the cable shafts of the reel groups are respectively connected with the circular tracks on both sides, and the interlocking mechanism connects the cable shafts of each cable reel group equidistantly along the circular tracks; the stepping drive mechanism drives the interlocking The mechanism runs along the circular track; the friction wheel retractable mechanism is arranged at the rear end of the frame and outside the tail of the circular track, and includes a friction wheel and a friction wheel driving mechanism.

Description

A vehicle-mounted cable automatic retracting mechanism

technical field

The invention relates to the construction field of emergency power supply or maintenance work in the electric power industry, in particular to a vehicle-mounted carrying and automatic retractable mechanism dedicated to large-capacity wires and cables.

Background technique

Emergency power supply or bypass power supply maintenance operations in the power industry often require large-capacity cables to be installed at the construction site. In order to improve work efficiency, the cables are generally carried by special vehicles and retracted by special mechanisms. At present, there are mainly two types of vehicle-mounted cable retracting mechanisms in the domestic electric power industry: one is the vehicle-mounted planetary gear automatic cable retracting mechanism, and the other is the vehicle-mounted cable shaft double-layer horizontal mechanism.

The vehicle-mounted planetary gear automatic cable retraction mechanism is installed evenly around a main shaft by multiple cable shafts. A group of triple cable reels is installed on each cable shaft. Driven by a hydraulic motor, the main shaft can drive multiple groups of cable reels. Revolving around the main shaft, each cable shaft is also equipped with a hydraulic motor, and each cable reel can also rotate automatically under the drive of its own hydraulic motor, so as to achieve the purpose of automatically retracting and unwinding the cable; in the rapid repair of overhead high-voltage lines in the power system During inspection and maintenance, since the distance between two high-voltage disconnects is generally 300 meters, the operating vehicle needs to carry at least 900 meters (three-phase) high-voltage bypass cables to meet the operating requirements. 5 cable shafts are arranged, that is, the maximum length of this cable is 5X3X50=750 meters; in addition, it is often encountered in the operation that the work vehicle cannot drive to the construction site, and the cable reel needs to be unloaded from the vehicle, but this mechanism disassembles the cable reel Extremely troublesome, has had a strong impact on the power repair speed.

The vehicle-mounted cable shaft double-layer horizontal mechanism is to place multiple brackets in the compartment according to the length of the compartment. Each bracket can place two upper and lower cable reels, and each shaft cable reel can be made into triple or quadruple, so that the entire compartment It can carry up to 1600 meters of high-voltage bypass cables, and each cable reel can be driven by manual, hydraulic motor or electric motor to retract and retract the cables, which requires the cables to be retracted and retracted on both sides of the carriage, which is difficult to meet the road occupation construction It is required to go out from the rear of the vehicle, and the double-layer structure has a high center of gravity, and the driving stability of the vehicle is poor. In addition, the cable reel of this mechanism can hardly be moved out of the compartment, which brings a lot of inconvenience to the construction work.

Contents of the invention

The purpose of the present invention is to provide a large cable-capacity vehicle-mounted cable automatic retracting mechanism with the retracting and releasing position at the rear of the carriage, and the cable reel can be quickly disassembled and assembled according to the construction needs.

The technical scheme that realizes the object of the present invention is:

A vehicle-mounted automatic retractable mechanism for cables, which consists of a frame, a pair of circular rails, a set of interlocking mechanisms, a set of step-by-step drive mechanisms, a set of friction wheel retractable mechanisms, and several multi-connected cable reel groups; The frame is a rectangular parallelepiped frame conforming to the vehicle standard, and the left and right inner surfaces of the frame are respectively provided with a longitudinal circular track, and several multi-connection cable reel groups are arranged in the frame in sequence according to the front and rear directions, and each multi-connection cable The two ends of the cable shafts of the reel groups are respectively connected with the circular tracks on both sides, and the interlocking mechanism connects the cable shafts of each cable reel group equidistantly along the circular tracks; the stepping drive mechanism drives the interlocking The mechanism runs along the circular track; the friction wheel retractable mechanism is set at the rear end of the frame and outside the tail of the circular track, including the friction wheel and the friction wheel driving mechanism. When running down to the end of the track, the friction wheel mechanism drives the multi-connected cable reel group to rotate in both directions to automatically retract and release the cables.

The stepping drive mechanism can be a group of oil cylinders, including clamping, advancing and locking oil cylinders. The stepping drive mechanism drives a group of cable reels through the combined action of a group of oil cylinders to complete the displacement of a fixed stroke at one time, and the other groups of cable reels are driven by the interlocking mechanism, and then rotate along the track synchronously. The reel moves to the specific take-up and release position at the end of the track under the action of the step-by-step drive mechanism. Driven by the friction wheel mechanism, the cable reel can rotate in both directions to automatically retract and release the cable.

The multi-connection cable reel set is a triple-connection cable reel set or a quadruple-connection cable reel set.

The interlocking mechanism is a chain or a wire rope.

The drive in the friction wheel retractable mechanism is driven by a hydraulic motor or an electric motor.

As a further improvement of the present invention, a hoisting mechanism may be provided at the upper middle part of the rear part of the frame for the disassembly and assembly of each cable reel set.

As a further improvement of the present invention, the interlocking mechanism is a chain, and the step-by-step driving mechanism is fixedly connected to the chain through several traveling fork mechanisms. In the middle opening of the fork head of the traveling fork, corresponding sprockets are respectively arranged in the two chain rings, and the sprocket shafts of the corresponding sprockets are rigidly connected to ensure that the chains on both sides move synchronously. the

As a further improvement of the present invention, a roller guide plate is connected between the tail of the circular track and the frame to facilitate the installation of the cable reel group into the circular track.

The beneficial effect of the present invention is that the retractable position of the cable is at the tail of the vehicle direction, which meets the requirement of road occupation construction to lead out from the rear of the vehicle; more importantly, the mechanism can accommodate more cables in the same compartment space as the other two mechanisms. A large number of cables; the cable reels can be placed on the lower layer of the track in the driving state to reduce the height of the center of gravity of the vehicle; in addition, the cable reels can be quickly disassembled and assembled according to construction needs.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the A direction view of Fig. 1;

In the figure 1. frame, 2. large sprocket, 3. stepping drive mechanism, 4. accompanying fork, 5. circular track, 6. chain, 7. small sprocket, 8. cable reel, 9. friction Wheel mechanism, 10. cable shaft, 11. roller guide plate.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

As shown in Figure 1, Figure 2 and Figure 3, a vehicle-mounted cable automatic retractable mechanism, the ring track 5 is fixed on the inner sides of the left and right sides of the cuboid frame 1, the chain 6, the large sprocket 2 and the small sprocket 7 together form a closed ring-shaped chain transmission mechanism. The large sprockets 2 on both sides are rigidly connected through the large sprocket shaft to ensure the synchronous movement of the chains on both sides. The accompanying fork 4 and the chain 6 are connected together. 5, and move synchronously with the chain 6, the cable reel 8 is installed on the cable shaft 10, the cable shaft 10 runs in the circular track 5 on both sides through the rollers at both ends, and the two shaft ends of the cable shaft 10 are fixed on the In the central opening of the fork 4 prongs, the cable shaft 10, the chain 5, and the fork 4 keep moving synchronously.

Basic working process: the cable reel 8 revolves along the circular track 5 and the process of retracting and unwinding the cable: when the cable on the cable reel 8 pressed by the friction wheel mechanism 9 is retracted and unwound, the friction wheel mechanism 9 and the cable reel 8 are disengaged. Open, the stepping drive mechanism 3 moves, and pushes the traveling fork 4 to advance, thereby driving the cable shaft 10 to do synchronous movement, because the distance between each stroke of the stepping driving mechanism 3 and the traveling fork 4 is equal, so when the stepping type After one stroke of the driving mechanism 3 is completed, the next cable shaft 10 just arrives at the designated position, and then the friction wheel mechanism 9 is pressed against the cable reel 8 on the cable shaft 10, and the cable can be retracted, that is, a working cycle is completed. Repeat the above whole process to realize the whole revolution and cable retraction process; since the stepping drive mechanism 3 can move in both directions, the same principle can also be used to realize the revolution of the cable reel 10 along the ring track 5 in the other direction.

The installation and disassembly of the cable shaft 10 equipped with the cable reel 8: run the middle opening of a certain accompanying fork 4 to the opening of the circular track 5 through the step-by-step driving mechanism 3, and the cable equipped with the cable reel 8 The rollers at both ends of the shaft 10 are placed on the track guide plate 11. At this time, the rollers at both ends of the cable shaft 10 will enter the circular track 5, and the two shaft ends of the cable shaft 10 will be stuck in the middle hole of the traveling fork 4 and the traveling fork 4 Run together in the circular track 5, and also adjust the next accompanying fork 4 to the same position to install the cable shaft 10 through the step-by-step drive mechanism 3, until all the cable shafts 10 are assembled; disassembly process and installation The process is basically the same.

Claims (7)

1. an in-vehicle cable automatic deploying and retracting mechanism is characterized in that, described cable automatic deploying and retracting mechanism is made up of frame, a pair of circular orbit, a cover interlocking gear, a cover step wise driver train, a cover friction wheel jack and some multi-joint cable reel groups; Described frame is the cuboid framework that meets vehicle-mounted standard, medial surface about frame is respectively equipped with a circular orbit longitudinally, some multi-joint cable reel groups are pressed fore-and-aft direction, be sequentially arranged in the frame, the two ends of the cable axle of each multi-joint cable reel group flexibly connect with the circular orbit of both sides respectively, and described interlocking gear equidistantly is connected as a single entity the cable axle of each cable reel group along circular orbit; Described step wise drive mechanism interlocking gear moves along circular orbit; Described friction wheel jack is located at the rear end of frame, the afterbody outside of circular orbit, comprise friction wheel and friction wheel driving mechanism, when multi-joint cable reel group ran to the track afterbody under the effect of step wise driver train, friction wheel mechanism drove this multi-joint cable reel group bidirectional rotation and the automatic deploying and retracting cable.

2. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism is characterized in that described multi-joint cable reel group is three cable reel groups or tetrad cable reel group.

3. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism is characterized in that described interlocking gear is chain or steel rope.

4. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism is characterized in that the driving in the described friction wheel jack is fluid motor-driven or direct motor drive.

5. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism is characterized in that, the afterbody of described frame go up the middle part, be provided with a derricking gear.

6. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism, it is characterized in that, described interlocking gear is a chain, described step wise driver train is captiveed joint with chain by some retinues fork mechanism, retinue fork jaw is connected in the circular orbit by roller, and the two axial ends of cable axle is fixed in the middle perforate of retinue fork jaw; Article two, be respectively equipped with corresponding sprocket wheel in the chain ring, the sprocket shaft of corresponding sprocket wheel is rigidly connected.

7. in-vehicle cable automatic deploying and retracting according to claim 1 mechanism is characterized in that, is connected with roller and imports plate between the afterbody of circular orbit and frame.

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