CN204858424U - Cable Tunnel Inspection Shaft Traction and Laying Cable Combination Device - Google Patents

Abstract

The utility model provides a cable tunnel inspection shaft pulls cabling composite set, including set up respectively the well head crossbearer of well head top and below with support the crossbearer, the well head crossbearer with support the crossbearer and pass through the connecting rod connection for the motor -driven hank that promotes haulage cable grinds to be fixed on the well head crossbearer, installs the angle pulley on the support crossbearer, carries out 90 direction through the angle pulley with wire rope, pull the cabling in -process at the inspection shaft, can turn to traction force to need not install the reverse earth anchor that motor -driven hank ground, be particularly suitable for the cable laying in the cable tunnel of city, this project design is simple, low cost, and the equipment is convenient, and the effect is obvious, can solve the difficult problem in the construction.

Description

Cable Tunnel Inspection Shaft Traction and Laying Cable Combination Device

【Technical field】

The utility model belongs to the cable construction technology and relates to a combined device for pulling and laying cables in a cable tunnel inspection shaft.

【Background technique】

During the cable laying construction process, there is currently no traction guide device for tunnel inspection wells, nor is there any combined equipment that can adapt to various inspection wellheads.

The conventional method of on-site construction is: 1. Check the well wall for the damaged part, and force the traction wire rope to be pulled out of the tunnel at an angle > 90°, so that the output force of the motorized winch will be increased, and the steel wire rope will be stressed at an angle, which will accelerate the wear of the wire rope. Laying risks increase. 2. The fixed mobile winch needs to be installed with ground anchors, but the ground around the urban tunnel inspection shaft is hardened, and the ground anchors cannot be installed, which brings inconvenience to the construction. 3. The combination of double steering pulleys is adopted, and the wire rope needs to be guided by two 90° guides. About 30-40% of the traction force of the winch is used to overcome the resultant force of the angle, but the power cannot be fully converted into traction, which will intensify the wear of the winch and the wire rope. Work efficiency is low.

【Content of utility model】

In order to solve the above problems, the utility model provides a cable tunnel inspection shaft traction and laying cable combination device, which simplifies the structure of the device, improves the traction efficiency, and reduces the wear of the winch and the wire rope.

In order to achieve the above object, the technical scheme of the utility model is as follows:

Cable tunnel inspection shaft traction and laying cable combination device, including wellhead horizontal frame and support horizontal frame respectively arranged above and below the wellhead. On the horizontal frame of the wellhead, the steering pulley is installed on the supporting horizontal frame, and the wire rope is guided by 90° through the steering pulley.

Further, the wellhead cross frame and the supporting cross frame are connected by an adjustable connecting rod capable of adjusting the length.

Further, it includes a pulley arranged in the cable tunnel to support the cable.

Further, the wellhead horizontal frame and the supporting horizontal frame are made of glass fiber composite material.

Further, the motorized winch adopts a concave take-up reel.

The utility model includes a wellhead horizontal frame and a supporting horizontal frame arranged above and below the wellhead, and a steering pulley is installed on the supporting horizontal frame to change the direction of the traction force and solve the problem of cable laying in the tunnel and horizontal direction traction. The motorized winch is erected at the head of the inspection well and lifted vertically to improve the power conversion efficiency. At the same time, there is no need to install ground anchors, which is simple and practical.

Further, the wellhead cross frame and the support cross frame are connected by an adjustable connecting rod capable of adjusting the length, and by adjusting the length of the connecting rod, it can be suitable for inspection wells of different depths and different well wall thicknesses. The design of the device is simple and practical, the assembly is quick, and the efficacy is improved.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

In the figure: 1-wellhead horizontal frame, 2-motorized winch, 3-supporting horizontal frame, 4-turning pulley, 5-adjustable connecting rod, 6-cable, 7-pull block, 8-wellhead, 9-wire rope.

【Detailed ways】

The utility model is described in detail below in conjunction with accompanying drawing:

Referring to Fig. 1, the technical scheme that the utility model adopts is: comprise the wellhead horizontal frame 1 of upper half, fix motor winch 2, and undertake the effect of lifting traction wire rope 9. The supporting horizontal frame 3 in the lower part fixes a steering pulley 4 and guides the wire rope at 90°. The wellhead horizontal frame 1 and the supporting horizontal frame 3 are respectively arranged above and below the wellhead 8. The connecting rod 5 can be adjusted to connect and fix the upper and lower horizontal frames. The frame adapts to the tunnel structure of different depths, supports the whole device at the same time, and keeps the device stable.

In the process of pulling and laying cables in the inspection well, the traction force can be reversed, and the reverse pulling force of the motorized winch is not required. It is especially suitable for cable laying in urban cable tunnels. It is suitable for the laying construction of cable tunnel inspection wells and can be installed on site. , Convenient and efficient combined device. According to the conditions of the on-site inspection well, it can be used in environments with various specifications and different shades at any time, without damage to the inspection well; it overcomes the disadvantage that ground anchors cannot be installed on urban hardened ground. Improve the commonly used two 90° turning pulleys, simplify the device, almost all the power is converted into traction, improve efficiency, and reduce the wear and tear of the motorized winch and wire rope. The assembly device for traction and laying of cables in inspection wells described in the utility model is simple and practical in assembly.

In addition, a trolley 7 supporting the cable 6 is provided in the cable tunnel, the wellhead cross frame 1 and the support cross frame 3 are made of glass fiber composite material, and the motor winch 2 adopts a concave take-up reel.

Before construction, put the lower part of the support horizontal frame into the inspection well and adjust it to a horizontal position. At the same time, the top half of the wellhead horizontal frame is placed at the inspection wellhead to complete. The upper and lower horizontal frames are connected by adjusting connecting rods, and the position of the connecting rods is adjusted according to the thickness of the inspection shaft wall to ensure the overall stability of the device.

Pass the traction wire rope in the tunnel through the diverting pulley of the lower half of the supporting horizontal frame, and send it to the inspection wellhead to connect with the motorized winch.

After the adjustment equipment is normal, the laying construction is notified to start, the motorized winch is started, the steel wire rope is retracted, and the traction cable moves horizontally in the tunnel.

The utility model has the advantages of simple structure, convenient operation, safety and reliability, can effectively save the construction time, avoids complicated maintenance procedures and other problems that may occur during the maintenance process, can greatly reduce the maintenance cost, and can be popularized and used in similar industries.

Claims (5)

1. cable tunnel inspection shaft traction cabling combination unit, it is characterized in that: comprise and be separately positioned on well head crossbearer (1) above and below well head (8) and supporting cross bearer (3), well head crossbearer (1) is connected by connecting rod with supporting cross bearer (3), motor-driven grinding mill (2) for promoting haulage cable (9) is fixed on well head crossbearer (1), supporting cross bearer (3) is provided with angle pulley (4), by angle pulley (4), steel wire rope (9) is carried out 90 ° of guiding.

2. cable tunnel according to claim 1 inspection shaft traction cabling combination unit, is characterized in that: described well head crossbearer (1) and supporting cross bearer (3) are by regulating the adjustable link of length (5) to be connected.

3. cable tunnel according to claim 1 inspection shaft traction cabling combination unit, is characterized in that: described in comprise the coaster (7) being arranged on cable tunnel inner support cable (6).

4. the cable tunnel inspection shaft traction cabling combination unit according to any one of claim 1-3, is characterized in that: described well head crossbearer (1) and supporting cross bearer (3) are made up of glass fiber compound material.

5. the cable tunnel inspection shaft traction cabling combination unit according to any one of claim 1-3, is characterized in that: described motor-driven grinding mill (2) adopts spill take-up reel.