CN1069939A - Cable cart - Google Patents

Abstract

A kind of cable cart, it is to adopt by the tractive force drive to have realized ponderomotive force, and does initial the lifting by energy storage, is realized getting on the bus of cable drum and is got off lifting by whole hydraulic control system.The present invention has simple to operate, and is reasonable in design, steadily, reliable, and the characteristics of safety, and do not set up prime power, and utilize the tractive force energy to finish the lifting of cable drum as power, saved the energy.Can realize resilient suspension.Vehicle frame can not be subjected to the effect of moment of torsion.And realized Hydraulic for lifting load, this has not only reduced operating personal, has shortened lift time greatly, and has improved work efficiency again.

Description

Cable cart

The present invention relates to a kind of tractor truck, especially a kind of cable cart.

As everyone knows, cable cart is to lay for the communication cable haul to use, but trailer is fairly simple at present, needs many people lifting or unloads cable drum, and heavy especially cable is got off, and is to turn over realization by behind the trailer, and this had both damaged equipment, had the danger of injury human body again.And in the power cable laying project, still adopt hoisting crane now, and the spider construction, this method need be followed a car hosit, and wants the cooperation of relatively large automobile or many automobiles.The existing cable cart of going up marine products is to adopt hand hydraulic upgrade, needs 20 minutes could finish lifting.

Recognize the construction status of present cable laying engineering, also consider communication career and development of electric power industry, in order to change the backward situation in the construction, in order to reduce manual labor, eliminate many people's operations, safety control is provided, the present invention has designed a kind of cable cart.

The purpose of this invention is to provide a kind of cable cart of realizing the power hoisting cable drum by tractive force.

The present invention adopts such method to realize: cable cart is the mode trailing cable dish trailer that adopts trailer, realize that by tractive force cable cart plays ponderomotive force, and do initial lifting work by energy storage, realize getting on the bus of cable drum and get off lifting by whole hydraulic control system.

The realization of lifting is the multiplying gear that is provided with by wheel portion, makes oil pump work, and makes the energy storage accumulation of energy by control cock, when needs power, by control cock control oil cylinder, makes lift shaft landing or lifting.Realize the lifting of cable drum.

The present invention has simple to operate, and is reasonable in design, steadily reliable, and the characteristics of safety, and neither use manpower are not set up prime power again, and utilizes the tractive force energy to finish the lifting of cable drum as power, saved the energy.Can realize resilient suspension.Vehicle frame can not be subjected to the effect of moment of torsion.And realized Hydraulic for lifting load, this has not only reduced operating personal, has shortened lift time greatly, and has improved work efficiency again, is a kind of special rolling cart that construction is used in the cable laying engineering.

The specific embodiment of the invention is provided by the following drawings.

Fig. 1 is a car body vertical profile structural representation of the present invention.

Fig. 2 is that car body of the present invention is overlooked the overall structure scheme drawing.

Fig. 3 is a car body backsight structural representation of the present invention.

Fig. 4 is an axletree sectional structure scheme drawing of the present invention.

Fig. 5 is a fluid control schematic diagram of the present invention.

Below in conjunction with accompanying drawing specific embodiments of the invention are done with further instruction.

See shown in Fig. 1-3: cable cart is to adopt vehicle frame 1 to be the main body of cable jiggering, except that the tail boom beam is hinged, it is an integral solder part, its head is the equicrural triangle drawbar frame, the middle part is two parallel bearing beams, drawbar frame three limits are the box-shaped transversal surface with the channel-section steel butt welding all, weld plate iron foremost and are shaped on towing pad, in order to be connected with the tractor truck hauling hook.The middle part bearing beam is the I-shape transversal surface basically, bottom wing is a flat plate, the bottom is welded with the bow hanger and is connected with the steel spring assembly, upper limb is the boundary with the tire center, and preceding half segment base is originally straight, is screwed oil cylinder seat 11 in the above, the tail boom beam begins to middle part bearing beam second half section upper limb, upper surface forms the operation ramp (ramp of cable drum lifting just) of lift shaft 9, and the hypomere in ramp is the straight line ramp at 45 with horizontal surface, and epimere is the circular arc ramp.

The tail boom beam is the prolongation ramp that is articulated and connected, and is used for promoting the cable drum than minor diameter, and improves the car body through performance.

See shown in Figure 4: axletree parts 2, it comprises the axletree 13 of welding, tyre assembly 14 and multiplying gear 15.Welding axletree and common axletree difference are its interlude biasing (seeing accompanying drawing 1,3), and the purpose of biasing is that reduction lift shaft 9 is the final hoisting depth of cable drum, increases the stability of car load.Tyre assembly 14 identical with on general-utility car or trailer, multiplying gear 15 passes to oil pump shaft with the gyroscopic movement of tire, and increases its rotating speed.Fuel tank 3 is placed on the horizontal side bar of triangle drawbar frame of vehicle frame 1, and affixed with bolt and vehicle frame 1, places above it and three change-over valves of fixed hydraulic system 4.

The lifting and the landing of the cable drum on the hydraulic efficiency pressure system 4 control cars.Hydraulic efficiency pressure system has six kinds of functions.See shown in Figure 5:

When 1, travelling off-load, oil pump turned round and the direct oil sump tank of oil during garage advanced, and did not produce pressure and formed big resistance.When advancing off-load, three-position four-way valve 16 is in meta, and 2/2-way valve 17 is connected, and ball valve 18 is closed, oil flow away to; From oil pump 5 → three-position four-way valve 16 → 2/2-way valve 17 → fuel tank 3.

2, the accumulation of energy of advancing, car is in advancing, even unloaded car also can reach maximum supercharging pressure to energy storage 7 topping ups.When advancing accumulation of energy, three-position four-way valve 16 is in meta, and 2/2-way valve 17 turn-offs, and ball valve 18 is opened.Oil flow away to; Oil pump 5 → three-position four-way valve 16 → check valve 21 → ball valve 18 → energy storage 7.

3, the motion of oil cylinder 6 pistons, in advancing, oil cylinder 6 piston rods can extend suitable position.When piston rod stretched out, three-position four-way valve 16 was in position, a left side, and 2/2-way valve 17 is connected, and ball valve 18 is closed.Oil flows away to, oil pump 5 → three-position four-way valve 16 → oil cylinder 6 → one-way throttle valve 20 → three-position four-way valve 16 → 2/2-way valve 17 → fuel tank 3.

4, energy storage 7 promotes, when left alone without help car, carry out, when cable drum with after lift shaft 9 attaching partss 10 oil cylinders 6 are connected, available energy storage 7 interior storage liquid promote cable drum, away from ground, for next step lifting of advancing is got ready.When energy storage 7 promoted, three-position four-way valve 16 was in right position, and 2/2-way valve 17 is connected, and ball valve 18 is opened.Oil flow away to; Energy storage 7 → ball valve 18 → check valve 22 → three-position four-way valve 16 → one-way throttle valve 20 → oil cylinder 6 → three-position four-way valve 16 → 2/2-way valve 17 → fuel tank 3.

5, the lifting of advancing promotes cable drum simultaneously in advancing, advance when promoting, and three-position four-way valve 16 is in right position, and 2/2-way valve 17 is connected, ball valve 18 open or close all can, oil flow away to; Oil pump 5 → 3-position 4-way valve actuation 16 → one-way throttle valve 20 → oil cylinder 6 → three-position four-way valve 16 → 2/2-way valve 17 → fuel tank 3.

6, gravity descends, and when left alone without help car, can will weigh cable drum by gravity and be placed on ground reposefully.When gravity descended, three-position four-way valve 16 was in position, a left side, and 2/2-way valve 17 is connected, and ball valve 18 is closed, oil flow away to; Oil cylinder 6 cavity of resorptions (small end) → one-way throttle valve 20 → three-position four-way valve 16 → check valve 21 → check valve 22 → three-position four-way valve 16 → oil cylinder 6 epicoeles (big end).Oily stream is done above-mentioned when mobile in hydraulic efficiency pressure system, the oil that flows out because of oil cylinder 6 cavity of resorptions (small end) is few, and the oil that epicoele (big end) should cover is many, form negative pressure at some section of pipeline, the store oil in the fuel tank 3 will be by 2/2-way valve 17, check valve 21, check valve 22, three-position four-way valve 16 to oil cylinder 6 epicoele oilings.Compression indicator 19 in hydraulic efficiency pressure system is used for controlling the precharge pressure of energy storage 7 in operation.

Oil pump 5 is to adopt two with discharge capacity but the opposite oil pump of rotation direction, is installed in the terminal of multiplying gear 15, and its center is concentric with tyre assembly 14.

Oil cylinder 6 is to adopt the intermediate rotary shaft formula, and rotating shaft is inserted in oil cylinder seat 11 holes, and its free cheek is parallel with vehicle frame 1 middle part bearing beam web plane, and is positioned at its inboard.

Energy storage 7 is positioned on the angle of vehicle frame horizontal side bar of 1 triangle drawbar frame and hypotenuse beam composition.

Supporting leg 8 is arranged in the angle that vehicle frame 1 triangle drawbar frame two hypotenuses are formed, and fixing with the welding of triangle drawbar frame.It is used for adjusting the height of triangle drawbar frame, so that be connected smoothly with tractor truck.

Lift shaft 9 is through in the centre hole of cable drum in use, and concentric with adapter sleeve tightening and cable drum.Roller is equipped with at lift shaft 9 two ends, and needle bearing is arranged in the roller, the roller lifting of rolling on the ramp of vehicle frame 1.

Attaching parts 10 is used for connecting oil cylinder 6 and lift shaft 9, and two ends are all hinged.Attaching parts 10 has three kinds of forms, is used for promoting the cable drum that varies in size respectively.

Oil cylinder seat 11 is installed in the top of the middle part bearing beam of vehicle frame 1, is fixed by bolts on the vehicle frame.

The mounting means of steel spring assembly 12 is all identical in general-utility car with effect.

Claims (3)

1, a kind of cable cart, the cable cart that it has hand fluid pressure type is characterized in that: drive oil pump shaft by tractive force and realized ponderomotive force, adopt energy storage 7 to do initial the lifting, realized getting on the bus of cable drum and got off lifting by hydraulic control system.

2, by the described cable cart of claim 1, it is characterized in that: the multiplying gear 15 that wheel portion is provided with, make oil pump 5 work, and make energy storage 7 accumulation of energys by control cock, by control cock control oil cylinder 6, make lift shaft 9 landing or lifting.

3, by the described cable cart of claim 1, it is characterized in that: cable drum promotes by the ramp behind car.

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