CN112110347A - Hoisting devices on the job site - Google Patents

Abstract

The invention provides a hoisting device for an operation site, which comprises a telescopic main arm, a telescopic suspension arm, a telescopic supporting device, an electric hoist and a fixing device, wherein one end of the telescopic main arm is fixed on the fixing device, the free end of the telescopic main arm is rotatably connected with a rotating disc, one end of the telescopic suspension arm is hinged with the rotating disc, the lower end of the telescopic main arm is connected with a rotating device, two ends of the telescopic supporting device are respectively hinged with the rotating device and the telescopic suspension arm, the rotating disc and the telescopic suspension arm are provided with a pulley block, the electric hoist is fixed on the telescopic main arm or the fixing device, and a lifting rope of the electric hoist bypasses the pulley block to be connected with a lifting hook. The hoisting device solves the hoisting problem that a crane cannot reach the overhauling and replacing of a breaker, a mutual inductor, a lightning arrester, an isolating switch and the like in an area, reduces the operation risk and labor intensity of manually hoisting a tripod, a propeller strut and a single rod by using a long steel pipe, and avoids the risk of equipment damage and human body electric shock.

Description

Hoisting devices on the job site

technical field

The invention relates to the technical field of hoisting equipment, in particular to a hoisting device on a job site.

Background technique

Substations mostly use open conventional wiring methods. During the maintenance and replacement of circuit breakers, transformers, arresters and isolation switches, small cranes can be used for equipment hoisting near the roads in the station. Due to the limited space, cranes cannot be used for most of the equipment. In place, only a tripod, a herringbone frame or a single pole composed of steel pipes, hemp ropes and chain hoists can be used for hoisting. Since the equipment installation bracket is 2.5 meters, it is necessary to use steel pipes of 6 meters or more to hoist. , In the process of erection, because the steel pipe is too long and heavy, it is difficult to handle and operate, and it takes 6-8 people to complete the erection work, which is time-consuming, labor-intensive and labor-intensive.

SUMMARY OF THE INVENTION

In view of this, the present invention proposes a hoisting device on the job site, which solves the hoisting problem of repairing and replacing circuit breakers, transformers, arresters and disconnecting switches in areas that cannot be reached by cranes, and reduces the need for manual use of long steel pipes to build tripods, herringbone frames and other hoisting problems. The operation risk and labor intensity of single-pole hoisting avoid the risk of equipment damage and personal electric shock.

The technical scheme of the present invention is realized as follows:

The hoisting device on the job site includes a telescopic main arm, a telescopic boom, a telescopic support device, an electric hoist and a fixing device. One end of the telescopic main arm is fixed on the fixing device, and the free end of the telescopic main arm is rotatably connected There is a rotating plate, one end of the telescopic boom is hinged with the rotating plate, the lower end of the telescopic main arm is connected with a rotating device, and the two ends of the telescopic support device are respectively connected with the rotating device and the telescopic boom. Hinged, a pulley block is arranged on the rotating plate and the telescopic boom, the electric hoist is fixed on the telescopic main arm or the fixing device, and the hoist rope of the electric hoist bypasses the pulley block and is connected to a crane. hook.

Preferably, the rotating device includes a fixed sleeve, a rotating gear ring and a driving device, the rotating gear ring is arranged on the outer side of the fixed sleeve, and several The first ball, the upper and lower ends of the fixed sleeve are respectively connected with a support ring, the support ring on the side close to the rotating gear ring is provided with a number of rotating grooves, and the second ball is arranged in the rotating groove, The fixed sleeve and the support ring are fixed on the lower end of the telescopic main arm, one end of the telescopic boom is hinged with the rotating gear ring, and the driving device is used to drive the rotating gear to rotate.

Preferably, the driving device includes a motor and a motor mounting seat, the motor mounting seat is fixed on the lower end of the telescopic main arm, the motor is fixed on the motor mounting seat, and the output shaft of the motor is connected with a gear, The gear is engaged with the rotating gear ring.

Preferably, the telescopic main arm includes a first main arm, a second main arm and a long pump jack, the first main arm is a hollow structure, the long pump jack is fixed in the first main arm, the One end of the second main arm is slidably connected to the inside of the first main arm, and the free end of the long pump jack is connected to the second main arm.

Preferably, the fixing device includes a base and a fixing plate, the base is fixed on the fixing plate by several bolts, and the telescopic main arm is fixed on the base.

Preferably, the telescopic main arm is also connected to the base through a plurality of pulling ropes.

Preferably, the telescopic boom is provided with a number of guide hooks for limiting the suspending rope.

Preferably, the pulley set includes a first pulley and a second pulley, the first pulley is fixed on the rotating plate, and the second pulley is fixed on the free end of the telescopic boom.

Preferably, the telescopic boom is provided with a fixing ring groove, the fixing ring groove is connected with a hoop, and the telescopic support device is hinged with the hoop.

Compared with the prior art, the beneficial effects of the present invention are:

The hoisting device on the job site provided by the present invention solves the hoisting problem of repairing and replacing circuit breakers, transformers, arresters and isolating switches in areas that cannot be reached by cranes. It is suitable for lifting and unloading of different equipment and different heights. The mutual cooperation of the rotating disc and the rotating device enables the telescopic boom to rotate at a certain working angle, which is convenient for the on-site lifting of the isolation switch, transformer, arrester and circuit breaker, and the rotating device is fixed on the telescopic main body. On the arm, when the axial rotation angle of the telescopic boom needs to be adjusted, there is no need to rotate the telescopic main arm, which reduces consumption, and at the same time ensures that the telescopic support device can not only adjust the radial rotation angle of the telescopic boom, but also enable the telescopic support device. Realize the support of the telescopic boom, stabilize the telescopic boom, and assemble it on the beam of the equipment installation bracket on site. It is used for on-site hoisting of the disconnector, transformer, arrester and circuit breaker, which reduces the operation risk, improves the work efficiency, and avoids the The risk of personal electric shock improves the safety of staff operations.

Description of drawings

Fig. 1 is the front structure schematic diagram of the hoisting device of the working site of the present invention;

Fig. 2 is the enlarged structural representation of part A in Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram of the rotating device of the present invention;

Fig. 4 is the sectional structure schematic diagram of the rotating device of the present invention;

Fig. 5 is the sectional structure schematic diagram of the telescopic main boom of the present invention;

FIG. 6 is a schematic front view of the structure of the hoisting device at the work site of the present invention;

Fig. 7 is the enlarged structural representation of part B in Fig. 6;

In the figure, 1 telescopic main arm, 101 first main arm, 102 second main arm, 103 long pump jack, 2 telescopic boom, 3 telescopic support device, 4 electric hoist, 5 fixing device, 501 base, 502 fixing plate, 6 rotating device, 601 second ball, 602 fixed sleeve, 603 rotating gear ring, 604 driving device, 6041 motor, 6042 motor mounting seat, 6043 gear, 605 first ball, 606 support ring, 607 rotating groove, 7 pulley group, 701 first pulley, 702 second pulley, 8 hanging rope, 9 hanging hook, 10 rotating plate, 11 pulling rope, 12 fixed ring groove, 13 hoop, 14 bearing seat, 15 fixed hoop, 16 convex seat, 17 guide hook , 18.

Detailed ways

In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described with reference to the accompanying drawings.

Example 1

1 to 5 , the hoisting device on the job site provided by the present invention includes a telescopic main arm 1, a telescopic boom 2, a telescopic support device 3, an electric hoist 4 and a fixing device 5. One end of the telescopic main arm 1 is fixed On the fixing device 5 , the free end of the telescopic main arm 1 is rotatably connected with a rotating plate 10 , wherein the rotating plate 10 is fixed to the free end of the telescopic main arm 1 through the bearing seat 14 , and one end of the telescopic boom 2 is fixed. It is hinged with the rotating plate 10, which is convenient to adjust the radial rotation amplitude of the telescopic boom 2. The lower end of the telescopic main arm 1 is connected with a rotating device 6, and the two ends of the telescopic support device 3 are respectively connected with the rotating device 6. It is hinged with the telescopic boom 2, and the rotating device 6 can be rotated to cooperate with the rotation of the rotating disk 10, so that the rotating device 6 drives the telescopic support device 3 connected to it to rotate, and the telescopic support device 3 drives the telescopic boom 2. Rotate and adjust the axial rotation angle of the telescopic boom 2. By adjusting the radial rotation angle and axial rotation angle of the telescopic boom 2 and the telescopic structure of the telescopic main arm 1 and the telescopic boom 2, the circuit breaker and mutual inductance can be accurately adjusted. The equipment such as circuit breaker, surge arrester or isolation switch is hoisted to the corresponding position. The operation is simple and convenient. Only a few people can cooperate to realize the loading and unloading of equipment such as circuit breaker, transformer, surge arrester or isolation switch. The rotating device 6 is fixed on the telescopic main arm 1 Above, when the axial rotation angle of the telescopic boom 2 needs to be adjusted, there is no need to rotate the telescopic main boom 1 to reduce consumption, and at the same time, it is also ensured that the telescopic support device 3 can adjust the radial rotation angle of the telescopic boom 2, wherein the telescopic support device 3 It is a long pump jack 103, which can not only adjust the radial rotation angle of the telescopic boom 2, but also can stabilize the telescopic boom 2. The rotating plate 10 and the telescopic boom 2 are provided with Pulley block 7, the electric hoist 4 is fixed on the telescopic main arm 1 or the fixing device 5, and the hanging rope 8 of the electric hoist 4 is connected to the hook 9 around the pulley block 7, and the hook 9 is hooked Fixing racks for equipment such as circuit breakers, transformers, arresters or isolating switches, and hoist the equipment to the corresponding position.

Working principle: In the relatively small area where the crane cannot be in place, when the circuit breaker, transformer, arrester, isolation switch and other equipment need to be repaired or replaced, the present invention is assembled on site, and the present invention is fixed on the circuit breaker by the fixing device 5. When hoisting circuit breakers, transformers, surge arresters, and isolating switches on the beams of the mounting brackets, such as transformers, surge arresters, or isolating switches, adjust the height of the telescopic boom 1, the length of the telescopic boom 2, and the telescopic boom according to the needs of on-site hoisting. 2, the rotation of the rotating device 6 drives the telescopic support device 3 to rotate, the telescopic support device 3 and the rotating plate 10 cooperate to adjust the axial rotation angle of the telescopic boom 2, start the electric hoist 4 to release the hanging rope 8, and the hook 9. Hook the fixing frame of the circuit breaker, mutual inductor, lightning arrester, isolating switch and other equipment, and hoist the equipment to the corresponding position.

Specifically, the rotating device 6 includes a fixed sleeve 602 , a rotating gear ring 603 and a driving device 604 . The rotating gear ring 603 is arranged on the outer side of the fixed sleeve 602 , and the rotating gear ring 603 is connected to the fixed sleeve 602 . A plurality of first balls 605 are arranged between the sleeves 602 , the upper and lower ends of the fixed sleeve 602 are respectively connected with support rings 606 , and the support rings 606 on the side close to the rotating gear ring 603 are provided with a plurality of rotating rings 606 . A groove 607, a second ball 601 is arranged in the rotating groove 607, the fixing sleeve 602 and the support ring 606 are fixed on the lower end of the telescopic main arm 2, and one end of the telescopic boom 2 is connected to the The rotating gear ring 603 is hinged, and the driving device 604 is used to drive the rotating gear 603 to rotate. When the axial rotation angle of the telescopic boom 2 needs to be adjusted, the driving device 604 is activated, so that the driving device 604 drives the rotating gear ring 603 to rotate in the ring groove 605, and cooperates with the rotating setting of the rotating disk 10, the rotating rotating gear ring 603 drives The telescopic support device 3 rotates along the axial direction of the telescopic main arm 1 to adjust the axial rotation angle of the telescopic boom 2. The support ring 606 plays the role of supporting the rotating gear 603 to prevent the rotating gear 603 from separating from the fixed sleeve 602. The two balls 601 can reduce the friction force between the rotating gear 603 and the support ring 606 , so as to adjust the radial rotation angle of the telescopic boom 2 .

Specifically, the driving device 604 includes a motor 6041 and a motor mount 6042, the motor mount 6042 is fixed on the lower end of the telescopic main arm 1, the motor 6041 is fixed on the motor mount 6042, the motor The output shaft of 6041 is connected with a gear 6043, and the gear 6043 is engaged with the rotating gear ring 603. The gear 6043 is driven by the motor 6041 to rotate, so that the rotating gear ring 603 engaged with the gear 6043 rotates. The motor mounting seat 6042 is provided with a fixing hoop 15 on one side, and the motor mounting seat 6042 can be fixed to the telescopic main arm 1 through the fixing hoop 15 below.

Specifically, the telescopic main arm 1 includes a first main arm 101, a second main arm 102 and a long pump jack 103, the first main arm 101 is a hollow structure, and the long pump jack 103 is fixed to the first main arm 103 In the main arm 101 , one end of the second main arm 102 is slidably connected to the inside of the first main arm 101 , and the free end of the long pump jack 103 is connected to the second main arm 102 . The height of the long pump jack 103 is adjusted, and the second main arm 102 is driven by the long pump jack 103 to slide in the first main arm 101 to adjust the height of the telescopic main arm 1 .

Example 2

Referring to FIG. 1 , the difference between this embodiment and Embodiment 1 is that the fixing device 5 includes a base 501 and a fixing plate 502 , the base 501 is fixed on the fixing plate 502 by several bolts, and the telescopic main arm 1 is fixed on the base 501 . When the present invention is installed on the beam of a mounting bracket such as a circuit breaker, a mutual inductor, a lightning arrester or an isolating switch, the fixing plate 502 is placed under the beam, the bottom plate is placed above the beam, and the fixed plate 502 and the bottom plate are connected by several bolts, Fix the fixing device 5 on the beam.

Specifically, the telescopic main arm 1 is also connected to the base 501 through a plurality of pull ropes 11 . The telescopic main arm 1 is reinforced from multiple directions by a plurality of pulling ropes 11 , so that the telescopic main arm 1 is stabilized on the bottom plate and the telescopic main arm 1 is prevented from falling.

Specifically, the telescopic boom 2 is provided with a number of guide hooks 17 for limiting the suspending rope 8 . Play a guiding role for the suspending rope 8 .

Specifically, the pulley set 7 includes a first pulley 701 and a second pulley 702 , the first pulley 701 is fixed on the rotating plate 10 , and the second pulley 702 is fixed on the free end of the telescopic boom 2 . It is beneficial to the operation of the suspending rope 8 .

Example 3

Referring to FIGS. 6 to 7 , the difference between this embodiment and Embodiment 1 is that the telescopic boom 2 is provided with a fixing ring groove 12 , the fixing ring groove 12 is connected with a hoop 13 , and the telescopic support device 3 is connected to The hoop 13 is hinged. When the present invention is not used, one end of the telescopic support device 3 is detached from the telescopic boom 2 through the hoop 13, and the telescopic support device 3 and the telescopic boom 2 are rotated so that the telescopic support device 3 and the telescopic boom 2 are parallel to the telescopic main arm 2. The arm 1 reduces the occupation of space and facilitates the transportation and storage of the present invention, wherein the rotating plate 10 is located on one side of the telescopic boom 2 and is provided with a convex seat 16, the telescopic boom 2 is hinged with the convex seat 16, and the fixed ring groove 12 can be The position of the hoop 13 is limited to avoid the displacement of the telescopic boom 2 due to the unstable fixation of the hoop 13 during operation. When the present invention is retracted, the presence of the boss 16 is convenient for the telescopic support device 3 to be placed on the telescopic main arm 1 and 1. Between telescopic booms 2.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. Hoisting device of job site, its characterized in that: the telescopic main arm is fixed at one end on the fixing device, the free end of the telescopic main arm is rotatably connected with a rotating disc, one end of the telescopic boom is hinged to the rotating disc, the lower end of the telescopic main arm is connected with a rotating device, two ends of the telescopic supporting device are respectively hinged to the rotating device and the telescopic boom, the rotating disc is provided with a pulley block on the telescopic boom, the electric block is fixed on the telescopic main arm or the fixing device, and a lifting rope of the electric block is wound around the pulley block to be connected with a lifting hook.

2. Hoisting device for a work site according to claim 1, characterized in that: the rotating device comprises a fixed sleeve, a rotating toothed ring and a driving device, the rotating toothed ring is arranged on the outer side of the fixed sleeve, a plurality of first balls are arranged between the rotating toothed ring and the fixed sleeve, the upper end and the lower end of the fixed sleeve are respectively connected with a support ring, a plurality of rotating grooves are formed in the support ring close to one side of the rotating toothed ring, second balls are arranged in the rotating grooves, the fixed sleeve and the support ring are fixed at the lower end of the telescopic main arm, one end of the telescopic boom is hinged to the rotating toothed ring, and the driving device is used for driving the rotating gear to rotate.

3. Hoisting device for a work site according to claim 2, characterized in that: the driving device comprises a motor and a motor mounting seat, the motor mounting seat is fixed at the lower end of the telescopic main arm, the motor is fixed on the motor mounting seat, an output shaft of the motor is connected with a gear, and the gear is meshed with the rotating gear ring.

4. Hoisting device for a work site according to claim 1, characterized in that: the telescopic main arm comprises a first main arm, a second main arm and a long pump jack, the first main arm is of a hollow structure, the long pump jack is fixed in the first main arm, one end of the second main arm is connected to the inside of the first main arm in a sliding mode, and the free end of the long pump jack is connected with the second main arm.

5. Hoisting device for a work site according to claim 1, characterized in that: the fixing device comprises a base and a fixing plate, the base is fixed on the fixing plate through a plurality of bolts, and the telescopic main arm is fixed on the base.

6. Hoisting device for a work site according to claim 5, characterized in that: the telescopic main arm is further connected with the base through a plurality of pull ropes.

7. Hoisting device for a work site according to claim 1, characterized in that: the telescopic boom is provided with a plurality of guide hooks for limiting the lifting rope.

8. Hoisting device for a work site according to claim 1, characterized in that: the pulley block comprises a first pulley and a second pulley, the first pulley is fixed on the rotating disc, and the second pulley is fixed at the free end of the telescopic boom.

9. Hoisting device for a work site according to claim 1, characterized in that: the telescopic boom is provided with a fixed ring groove, a hoop is connected in the fixed ring groove, and the telescopic supporting device is hinged to the hoop.

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