CN104692299A - Telescopic hydraulic lifting device of cable trench cover plates - Google Patents

Abstract

The invention discloses a retractable lifting device for a hydraulic cable trench cover. One end of the load-bearing base frame is provided with a telescopic base frame forearm, four corners of the load-bearing base frame are provided with steering wheels, and a main support rod is fixedly connected to the load-bearing base frame. , the boom is equipped with a telescopic boom on the side of the telescopic bottom frame forearm on the load-bearing chassis, and the end of the boom opposite to the telescopic boom is connected to the main support rod through a bearing, and the middle part of the telescopic boom is connected to the hydraulic device. The mobile end of the hydraulic device is connected with the movable end of the hydraulic device, and the fixed end of the hydraulic device is connected with the protruding platform of the lower part of the main support rod. The front end of the boom is hung with a hook through a sling; Accidents such as damage to the cable trench cover and personnel injury that may occur during the process of lifting and moving the cable trench cover; effectively improve personnel production efficiency and effectively ensure the integrity of the cable trench cover to improve the reliability of power supply.

Description

Retractable hydraulic cable trench cover lifting device

technical field

The invention belongs to the field of electric power engineering construction, in particular to a retractable lifting device for a hydraulic cable trench cover plate.

Background technique

At present, when carrying out construction in the cable trench or replacing and overhauling the cable trench cover itself, it is necessary to move the cover plate. Since there is no special device for moving the cable trench cover plate, it is generally carried by hand or loaded with a trolley. , labor-intensive, time-consuming, easy to overturn the cover and cause personal injury, crushing accidents, at the same time, the randomness of manual operation can easily cause damage to the equipment in the cable trench and the cover itself.

Since the cable trench covers are all reinforced concrete structures, they are large in size and heavy in weight, and the specifications of the cable trench covers in each substation are different, it is easy for the staff to smash when opening, closing and moving the cable trench covers. Injury, damage and other accidents have constituted a great hidden danger to production safety.

Contents of the invention

The purpose of the present invention is to provide a cable trench cover that can adapt to various specifications, and can effectively avoid accidents such as damage to the cable trench cover and personnel injury that may occur during the lifting and falling of the construction personnel and the movement of the cable trench cover; Effectively improve the productivity of personnel and effectively ensure the integrity of the cable trench cover to improve the reliability of power supply Telescopic hydraulic cable trench cover lifting device.

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

A retractable hydraulic cable trench cover lifting device, which includes a load-bearing underframe, a telescopic underframe forearm, a steering wheel, a hydraulic device, a boom, a telescopic boom, a sling, a main support rod, and an auxiliary support rod; One end of the load-bearing underframe is provided with a telescopic forearm of the underframe, and four corners of the load-bearing underframe are provided with steering wheels. Set the telescopic boom, the opposite end of the boom and the telescopic boom is connected with the main support rod through bearings, the middle part of the telescopic boom is connected with the moving end of the hydraulic device, the fixed end of the hydraulic device is connected with the lower part of the main support rod The protruding platforms are connected, and the front end of the boom is hung with a hook through a sling.

Compared with the prior art, the present invention has significant advantages:

(1) The present invention does not require manual operation, which can effectively avoid possible personnel injury accidents during the process of manually moving the cable trench cover, eliminates hidden dangers in production safety, and can effectively improve the work efficiency of personnel;

(2) The present invention can eliminate the damage and power supply accidents caused by the frequent opening, closing and moving of the cable trench cover, and can effectively ensure the reliability of power supply.

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a structural schematic diagram of the retractable hydraulic cable trench cover lifting device of the present invention.

Detailed ways

Combined with Figure 1:

The present invention is a retractable hydraulic cable trench cover lifting device, which includes a load-bearing chassis 1, a telescopic chassis forearm 2, a steering wheel 3, a hydraulic device 9, a boom 6, a telescopic boom 7, and a sling 8 , main support rod 5, auxiliary support rod 4; one end of load-bearing base frame 1 is provided with telescopic base frame forearm 2, four corners of load-bearing base frame 1 are provided with steering wheel 3, and load-bearing base frame 1 is fixedly connected with main support rod 5 , the boom 6 is provided with a telescopic boom 7 on one side of the telescopic bottom frame forearm 2 on the load-bearing chassis 1, and the opposite end of the boom 6 to the telescopic boom 7 is connected with the main support rod through a bearing. The middle part of arm 7 links to each other with the movable end of hydraulic device 9, and the fixed end of hydraulic device 9 links to each other with the protruding platform of the bottom of main support bar, and the front end of boom 6 is hung with suspension hook by sling 8.

The auxiliary support bar 4 is connected to the main support bar 5 and the load-bearing chassis 1;

The telescopic boom 7 and the boom 6 are fixed by a bolt 10 .

The telescopic chassis forearm 2 and the load-bearing chassis 1 are fixed by a bolt 10 .

The included angle between the hydraulic device 9 and the main support rod 5 is 30 degrees.

Boom 6 is inclined downwards, and the included angle angle with horizontal direction is less than 30 degree, to increase counterweight.

When in use, push the retractable hydraulic cable trench cover hoisting device to the working position, adjust and fix the retractable underframe forearm 2 and the retractable boom 7, and adjust the angle of the steering wheel 3 to achieve fixation; in actual operation, Lower the hydraulic device 9, install chains on the sling 8, and fix with the realization of the cable trench cover plate. Operate the hydraulic device to raise the cover plate to realize the lifting operation of the suspended cable trench cover plate, push the device to transfer the cable trench cover plate to the required position, and then operate the hydraulic device 9 to lower the cover plate and put it down.

Example 1:

A retractable hydraulic cable trench cover landing device, which includes a load-bearing chassis 1, a telescopic chassis forearm 2, a steering wheel 3, a hydraulic device 9, a boom 6, a telescopic boom 7, a sling 8, a main Support rods 5, auxiliary support rods 4; one end of the load-bearing base frame 1 is provided with a telescopic base frame forearm 2, four corners of the load-bearing base frame 1 are provided with steering wheels 3, and the load-bearing base frame 1 is fixedly connected with a main support rod 5. Arm 6 is provided with telescopic boom 7 on one side of telescopic bottom frame forearm 2 on the load-bearing chassis 1, and the opposite end of boom 6 to telescopic boom 7 is connected with the main support bar through a bearing, and telescopic boom 7 The middle part of the hydraulic device 9 is connected to the movable end, and the fixed end of the hydraulic device 9 is connected to the raised platform of the bottom of the main support rod.

Two auxiliary support rods 4 are used to respectively support the main support rod 5 on both sides of the load-bearing chassis 1 to increase the stability of the device.

The telescopic boom 7 and the boom 6 are fixed by the bolt 10, and the length of the telescopic boom 7 can be controlled only by plugging and unplugging the bolt 10 during use.

The telescopic bottom frame forearm 2 and the load-bearing bottom frame 1 are fixed by the bolt 10, and the length of the telescopic bottom frame forearm 2 can be controlled only by plugging and unplugging the bolt 10 during use.

The included angle between the hydraulic device 9 and the main support rod 5 is 30 degrees.

Boom 6 is inclined downwards, and the angle angle with horizontal direction is 20 degrees, to increase counterweight.

The present invention can effectively avoid possible accidents of personnel being injured during the process of manually moving the cable trench cover, eliminates hidden dangers in production safety, and can effectively improve the work efficiency of personnel; at the same time, it can prevent the frequent opening and closing of the cable trench cover. , The damage that occurs during the moving process and the power supply accidents caused by it can effectively ensure the reliability of power supply. Reasonable structure, convenient operation, and good adaptability, the telescopic hydraulic cable trench cover lifting device has strong practicability, good safety benefits and economic benefits, and is suitable for large-scale popularization and application.

Claims (6)

1. A retractable hydraulic cable trench cover lifting device, characterized in that it includes a load-bearing underframe (1), a telescopic underframe forearm (2), steering wheels (3), a hydraulic device (9), a crane Arm (6), telescopic boom (7), sling (8), main support rod (5), auxiliary support rod (4); one end of the load-bearing chassis (1) is provided with a telescopic chassis forearm (2) The four corners of the load-bearing underframe (1) are provided with steering wheels (3), the main support rod (5) is fixedly connected to the load-bearing underframe (1), and the boom (6) can be mounted on the load-bearing underframe (1). A telescopic boom (7) is arranged on one side of the forearm (2) of the telescopic bottom frame, and the opposite end of the boom (6) to the telescopic boom (7) is connected to the main support bar through a bearing, and the telescopic boom (7) The middle part of the hydraulic device (9) is connected to the mobile end, and the fixed end of the hydraulic device (9) is connected to the raised platform of the lower part of the main support rod. The front end of the boom (6) is hung with a hook through the sling (8). 2. A retractable hydraulic cable trench cover lifting device according to claim 1, characterized in that: the auxiliary support rod (4) is connected to the main support rod (5) and the load-bearing chassis (1). 3. A telescopic hydraulic cable trench cover hoisting device according to claim 1, characterized in that: the telescopic boom (7) and the boom (6) are fixed by a bolt (10). 4. A retractable hydraulic cable trench cover lifting device according to claim 1, characterized in that: the telescopic chassis forearm (2) and load-bearing chassis (1) are fixed by bolts (10) . 5. A retractable hydraulic cable trench cover lifting device according to claim 1, characterized in that: the angle between the hydraulic device (9) and the main support rod (5) is 30 degrees. 6. A retractable hydraulic cable trench cover lifting device according to claim 1, characterized in that: the boom (6) is inclined downward, and the included angle with the horizontal direction is less than 30 degrees.