CN104192728B - Lifting single locking hook type rotating type substation electromechanical equipment installation mechanism - Google Patents

Abstract

The invention discloses a kind of lifting monolock and stop mechanical and electric equipment installation mechanism of hook type rotation substation, comprise column base pitch, the slip joint that can rotate around the rotary column of mechanism base, fixed arm is mounted with on the top of slip joint, be provided with the telescopic boom that can lock in fixed arm, the front end of telescopic boom is provided with the suspension hook for lifting appliance by assembly pulley and lifting rope; Be provided with counterweight trolley in the bottom of column base pitch, counterweight trolley can rotate with column base pitch and slip joint around the circular orbit of mechanism base, realizes the revolution of 360 degree, and adaptation operation is wide, rotation is dexterous light; The lifting mechanism of slip joint has locking and braking function, can arbitrary height be rested on, change manpower in the past and the operation form of power transformation system is installed, eliminate the potential safety hazard in installation exercise process, not only increase economic benefit, also improve safety benefit.

Description

Lifting single locking hook type rotating type substation electromechanical equipment installation mechanism

Technical field:

The invention relates to an electromechanical equipment installation mechanism of a lifting single locking hook type rotary substation.

Background technique:

The equipment configuration in the substation section of the substation is tight, the equipment is heavy, and the specifications are uneven, and the inspection and maintenance work is carried out normally; the voltage level of the substation is high, the safety gap is small, and there are many exposed power points. Due to the above reasons, in the process of maintenance, testing and updating of substation equipment, large-scale operation tools cannot be used, the scope of power outage is large, the construction period is tight, and there are great safety hazards in personnel operations. Therefore, it is necessary to develop special operating tools to ensure the disassembly and assembly of equipment in the substation section, the safety of operators, and provide an effective and easy-to-set operating platform.

Invention content:

In order to overcome the defects of the prior art, the object of the present invention is to provide a lifting single locking hook type rotary type substation electromechanical equipment installation mechanism, which has a simple structure, light weight, easy disassembly and assembly, multiple functions and convenient transportation ,high working efficiency. It can meet the disassembly and assembly operations of all equipment within a certain height in the substation area, reduce the scope of power outages, and ensure the safety distance requirements.

The present invention solves technical problem and adopts following technical scheme:

The installation mechanism of the electromechanical equipment of the lifting single locking hook type rotary substation:

The mechanism base is set, and the base includes cross-shaped outriggers and universal wheels arranged at the bottom of the outriggers. An annular track with the center of the base as the center is fixedly arranged on the outriggers. fixedly connected longitudinal sleeves;

A rotating column inserted on the sleeve is provided, and the lower half of the rotating column inserted into the sleeve is fixedly sleeved with a tapered roller bearing matching the inner diameter of the sleeve, and the upper half of the rotating column is Square tube;

A square tube-shaped column base section inserted into the square tube of the rotating column and a telescopic section inserted into the column base section are provided, and a limit platform is integrally provided on the upper outer wall of the telescopic section, and the telescopic boom The rear part of the fixed arm is in the shape of a square sleeve, and the fixed arm is hooked on the upper part of the telescopic joint by the square sleeve at the rear, and is limited by the limit platform of the telescopic joint to prevent falling. A telescopic arm is provided, the two side walls of the telescopic arm are provided with limiting grooves along the axial direction, bolt holes are provided on the corresponding two side walls of the fixed arm, and the telescopic arm locking bolts installed in the bolt holes pass through the The limit slot locks the telescopic joint; the lifting system for setting the hook includes: a movable pulley set on the hook, a fixed pulley set on the front end of the telescopic arm, a guide pulley on the tail of the fixed arm and a lifting rope , the sling is driven by a motor or manpower to drive the hook up and down;

Set up a counterweight trolley, the side of the counterweight trolley is fixed with a horizontally extending exhibition wall, the counterweight trolley is hung on the rotating column with a square sleeve on the exhibition wall, and a counterweight trolley is installed at the bottom of the counterweight trolley. There are rollers matched with the circular track, and the axles of the rollers are mounted on the bottom of the counterweight trolley through bearings;

An anti-rolling rope is also connected between the counterweight trolley and the upper end of the expansion joint;

The lifting mechanism of the expansion joint is provided, and the lifting mechanism includes: a winch shaft with two winches, the winch shaft is mounted on the installation base at the front end of the counterweight trolley exhibition wall through bearings, and the winch shaft The rear end is connected with a hand wheel. One end of the lifting braided sling is fixedly connected to the winch shaft between the two winches, and the other end is fixedly connected to the braided sling fixing rod at the lower part of the expansion joint. Bypass on the fixed pulley set on the upper part;

The locking mechanism of the expansion joint is provided: the locking mechanism includes: a pawl seat rigidly connected to the front end of the winch shaft through a key, and two pawls are symmetrically connected to the pawl seat through a pin shaft and a torsion spring; A ratchet brake seat is connected with bolts on the installation base at the front end of the trolley exhibition wall. The rear end surface of the ratchet matched with the two pawls is in contact with the base surface of the inner cavity of the ratchet brake seat. The surface forms a ratchet pressure plate in surface contact, the central hole of the ratchet pressure plate is threadedly connected with the brake handle and locked by a lock nut, and the outer circumference of the ratchet pressure plate is threaded with the inner cavity side wall of the ratchet brake seat.

The outer walls of the upper four sides of the column base section are provided with deep groove ball bearings, a part of each of the deep groove ball bearings extends into the inner cavity of the column base section, and the shaft of each deep groove ball bearing is fixed on the outer wall of the column base section laterally ; The inner walls of the lower four sides of the expansion joint are also provided with bearings, a part of each bearing extends out of the expansion joint, and the shafts of each bearing are fixed on the inner wall of the expansion joint laterally.

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

The working space in the substation section of the substation is limited, and the equipment that needs to be repaired and disassembled is heavy. In order to meet the lifting and maintenance requirements of the power distribution equipment in this special workplace, the mechanism of the present invention is simple in structure, light in weight, and can be disassembled and assembled. Simple, multi-function and convenient transportation, high work efficiency. It can meet the disassembly and assembly of all equipment within a certain height in the substation area, reduce the scope of power outages, and ensure the safety distance requirements.

When using the mechanism of the present invention to install substation equipment, the on-site installation and coordination personnel are greatly reduced, which not only improves work efficiency, but also reduces power outage time, reduces power loss, and improves power supply reliability; eliminates potential safety hazards in the installation process, not only improves Not only economic benefit, but also safety benefit.

The lifting mechanism as a whole can rotate with the rotating column, which greatly expands the working area.

The jacking mast is an independent component composed of the base section and the telescopic section of the suit, which are plugged and connected with the machine base and the telescopic boom.

The movable pulley block is set on the hook, which has the function of saving labor. The lifting rope of the lifting hook is driven by a motor or manpower. The hook can hoist the substation equipment. Lifting equipment cannot enter, and the mechanism of the invention is easy to disassemble and combine, has strong hoisting capacity, and can meet construction requirements.

The driving mechanism and the ratchet brake mechanism realize functions such as mast lifting, ratchet locking, and brake retraction (with load). By changing the reversing installation of the ratchet pawl, the brake self-locking function can also be realized.

The anti-tilt locking mechanism is composed of an anti-tilt rope connected between the counterweight trolley and the upper end of the telescopic joint. This is a safety mechanism, which has the functions of adjusting the angle of the telescopic mast and tensioning the mast, and can prevent the mast from overturning.

The lifting mechanism is composed of a driving mechanism, a rope, a guide pulley and a pulley block. The driving mechanism realizes dual drive of manpower and electricity, and the friction drum configured is compact and small.

The support pole is specially designed for the 110kV disconnector, to ensure that the magnetic pillar will not be broken or injured by the lateral force during the disassembly process.

The counterweight trolley is actually a blue structure, which is set on the central rotary column, and connected with the base section of the telescopic arm by bolts to transfer part of the base section root bending moment. 8 counterweights are placed in 25kg buckets in the material basket, which is easy to obtain materials, and it is not a pity to discard them.

Description of drawings:

Fig. 1 is a schematic diagram of the overall structure of the present invention; Fig. 2 is a schematic diagram of the assembly of the mechanism base and the rotating column; Fig. 2A is a top view of the mechanism base; Fig. 3A, 3B, and 3C are respectively the left view, the front view and the right view of the column base section ; Figure 3D is a schematic diagram of the assembly of the four-side outer wall deep groove ball bearing on the upper part of the column base; Figure 4A, 4B, and 4C are the left view, front view and right view of the expansion joint; Figure 4D is the F direction of the lower part of the expansion joint in Figure 4B Views; Figure 4E is a schematic diagram of the assembly of the inner wall bearings on the four sides of the lower part of the telescopic joint; Figure 5 is a schematic diagram of the assembly of the column base section and the telescopic joint; Figures 6A and 6B are structural schematic diagrams of the telescopic arm and the fixed arm; Figure 6C is the telescopic arm and the fixed arm Figure 7A and Figure 7B are the front view and top view of the counterweight trolley, Figure 7C is the E-direction view of the upper part of the counterweight trolley in Figure 7A; Figure 8 is the locking mechanism of the telescopic joint Figure 8A is a schematic diagram of the assembly of the brake handle, lock nut, and ratchet pressure plate; Figure 8B is a top view of the ratchet pressure plate; Figure 9 is a schematic diagram of the assembly of the ratchet pressure plate, ratchet, and ratchet brake seat; Figure 9A, 9B It is the front view and top view of the ratchet; Figure 10 is a schematic diagram of the assembly of the ratchet wheel, pawl seat, and pawl; Figure 11 is a schematic diagram of the assembly of the pawl seat, winch shaft, and handwheel; Schematic diagram of the claw assembly.

Symbols in the figure: 1 mechanism base, 101 outrigger, 102 universal wheel, 103 circular track, 104 longitudinal sleeve, 105 rotating column, 106 tapered roller bearing, 2 column base section, 201 deep groove ball bearing, 3 telescopic section , 301 limit platform, 302 sling fixing rod, 303 bearing, 5 counterweight trolley, 501 spreader arm, 502 roller, 503 anti-tilt rope, 504 installation base, 601 winch shaft, 602 sling, 603 hand wheel, 701 pawl Seat, 702 pawl, 703 ratchet brake seat, 704 ratchet, 705 ratchet pressure plate, 706 brake handle, 707 lock nut; 801 fixed arm, 802 telescopic arm, 803 limit slot, 804 telescopic arm locking bolt, 901 Hook, 902 movable pulley block, 903 fixed pulley block, 904 guide pulley, 905 sling.

The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

detailed description:

Embodiment: Referring to the accompanying drawings, the structural features of the electromechanical equipment installation mechanism of the lifting single locking hook type rotary substation in this embodiment are as follows:

Set up the mechanism base 1, the base includes cross-shaped outriggers 101 and universal wheels 102 located at the bottom of the outriggers, a circular track 103 with the center of the base as the center is fixed on the outriggers, and the center of the base is fixedly connected with the outriggers The longitudinal sleeve 104.

In order to realize the rotation of the mechanism, a rotating column 105 inserted on the sleeve 104 is provided, and the lower half of the rotating column inserted into the sleeve is fixedly sleeved with a tapered roller bearing 106 matching the inner diameter of the sleeve. The half part is a square tube; set up a square tube-type column base section 2 inserted in the square tube of the rotating column and an expansion joint 3 inserted in the column base section 2, and a limit platform is integrally provided on the upper outer wall of the expansion joint 3 301, the rear part of the fixed arm 801 of the telescopic boom is in the shape of a square sleeve, and the fixed arm 801 is hooked on the upper part of the telescopic joint with the square sleeve at the rear, and is limited by the limit platform of the telescopic joint to prevent falling. A telescopic arm 802 is arranged inside the fixed arm, and the two side walls of the telescopic arm are provided with limiting grooves 803 along the axial direction, and bolt holes are arranged on the corresponding two side walls of the fixed arm, and the telescopic arm locking bolts 804 installed in the bolt holes pass through The limit groove locks the telescopic joint; the lifting system with the hook includes: a movable pulley block 902 set on the hook 901, a fixed pulley block 903 set at the front end of the telescopic arm, and a guide pulley set at the tail of the fixed arm 904 and the suspension rope 905, the suspension rope 905 is driven by a motor or manpower to drive the lifting hook.

The counterweight trolley 5 is set, and the side of the counterweight trolley is fixed with a horizontally extending extension arm 501, and the counterweight trolley is articulated on the rotating column 105 with the square sleeve on its extension arm, and the bottom of the counterweight trolley is provided with The roller 502 that cooperates with the ring track 103, the axle of the roller is installed on the bottom of the counterweight trolley through the bearing. An anti-tipping rope 503 is also connected between the counterweight trolley and the upper end of the expansion joint to prevent the entire mechanism from overturning and improve the safety factor. In the specific setting, a bolt groove 505 is provided on the top of the trolley extension arm 501, and a protruding bolt corresponding to the position of the trolley extension arm bolt groove is provided on the lower side wall of the column base section 2, through which the counterweight is further fixed. trolley.

The hoisting mechanism of the expansion joint 3 is set, and the hoisting mechanism includes: a winch shaft 601 with two winches, the winch shaft is mounted on the installation base 504 at the front end of the counterweight trolley boom 501 through bearings, behind the winch shaft The end is connected with a handwheel 603, and one end of the lifting braided sling 602 is fixedly connected to the winch shaft 601 between the two capstans, and the other end is fixedly connected to the braided sling fixing rod 302 at the bottom of the expansion joint 3, and the middle part of the braided sling 602 Go around on the fixed pulley provided on the upper part of the outer wall of the base section 2 of the self-supporting column.

Set the locking mechanism of the expansion joint 3: the locking mechanism includes: a pawl seat 701 rigidly connected to the front end of the winch shaft 601 through a key, and two pawls 702 are symmetrically connected on the pawl seat through a pin shaft and a torsion spring; The mounting base of the front end of the trolley arm is connected with a ratchet brake seat 703 by bolts, and the rear end surface of the ratchet wheel 704 matched with the two pawls 702 is in contact with the base surface of the inner cavity of the ratchet brake seat 703, and is set to form a surface with the front end surface of the ratchet wheel. The contact ratchet pressure plate 705, the central hole of the ratchet pressure plate is threadedly connected with the brake handle 706 and locked by the lock nut 707, and the outer circumference of the ratchet pressure plate is threaded with the inner cavity side wall of the ratchet brake seat.

The outer walls of the upper four sides of the column base section 2 are provided with deep groove ball bearings 201, and a part of each deep groove ball bearing extends into the inner cavity of the column base section, and the shaft of each deep groove ball bearing is fixed on the outer wall of the column base section laterally; Bearings 303 are also provided on the inner walls of the lower four sides of the section 3, and a part of each bearing 303 extends out of the telescopic section, and the shafts of each bearing are laterally fixed on the inner wall of the telescopic section.

In a specific application, when it is necessary to lift the bucket basket at 4 o'clock, turn the hand wheel 603 in the forward direction, the hand wheel drives the winch shaft 601 to rotate and wind the sling 602, and the sling drives the expansion joint 3 to rise in the column base section 2, because the column base section The friction between 2 and telescopic joint 3 is rolling friction (the function of deep groove ball bearing 201 and bearing 303), so the lifting force does not need to be large. With the function of ratchet and pawl, the expansion joint can stay at any height. At this time, the ratchet pressure plate 705 and the brake handle 706 are locked together by the lock nut 707, and the ratchet pressure plate 705 is locked by the thread on its outer circumference. Tighten in the ratchet brake seat 703, the ratchet pressure plate 705 and the ratchet brake seat 703 lock the ratchet in the inner cavity of the ratchet brake seat 703 from the two end faces of the ratchet wheel 704, and the ratchet wheel 704 controls the ratchet seat 701 to only rotate in one direction , since the ratchet seat 701 is rigidly connected to the winch shaft 601, the hand wheel 603 can only rotate in the forward direction, ensuring that the telescopic joint 3 can stay at any height when it rises. When the bucket basket needs to be lowered, the brake handle 706 can be rotated slightly in the opposite direction. At this time, the ratchet pressure plate 705 is also slightly withdrawn from the ratchet brake seat 703, and the pressure of the ratchet pressure plate 705 on the ratchet wheel 704 is reduced, so the ratchet wheel 704 can Idling in the ratchet brake seat 703, due to the effect of gravity, the bucket basket 4 and the expansion joint 3 descend, driving the winch shaft 601 to reverse, the winch shaft drives the pawl seat and the pawl, and the pawl drives the ratchet wheel to idle. When stopping, the brake handle 706 only needs to be rotated forward to lock the ratchet in the brake seat of the ratchet.

Claims (2)

1. be elevated monolock and stop mechanical and electric equipment installation mechanism of hook type rotation substation, it is characterized in that:

Set up an organization base (1), described base comprises criss-cross supporting leg (101) and is located at the cardan wheel (102) bottom described supporting leg, the circular orbit (103) that described supporting leg to be fixedly installed with base center be the center of circle, base center is provided with the longitudinal sleeve (104) be fixedly connected with supporting leg;

Setting is plugged on the rotary column (105) on described sleeve (104), the rotary column lower part fixed cover being inserted in sleeve inner is connected to the tapered roller bearing (106) mated with described sleeve diameter, and the first half of described rotary column is square tube;

The square-tube type column base pitch (2) be plugged in the square tube of described rotary column and the slip joint (3) be plugged on described column base pitch (2) are set, limiting platform (301) is provided with in the external wall of upper portion integral type of described slip joint (3), the rear portion of the fixed arm (801) of telescoping boom is square cannula-like, described fixed arm (801) is articulated in the top of slip joint with the square casing at its rear portion, and prevent from by the limiting platform of slip joint is spacing, telescopic boom (802) is provided with in described fixed arm, the two side of described telescopic boom is provided with position-limited trough (803) in the axial direction, bolt hole is provided with in the corresponding two side of fixed arm, the telescopic boom lock bolt (804) be arranged in described bolt hole is locked telescopic boom by described position-limited trough, the hoisting system of described suspension hook is set, comprise: be located at the running block (902) on suspension hook (901), be located at the fixed pulley group (903) of telescopic boom front end, be located at the leading sheave (904) of fixed arm afterbody and lifting rope (905), described lifting rope (905) is driven by motor or manpower drives drive hook lifting,

Counterweight trolley (5) is set, the sidepiece of described counterweight trolley is installed with the exhibition wall (501) of horizontal expansion, counterweight trolley is articulated on described rotary column (105) with the square casing on its exhibition wall, be provided with the roller (502) coordinated with described circular orbit (103) in the bottom of counterweight trolley, the wheel shaft of described roller is arranged on bottom counterweight trolley by bearing;

Anti-dumping rope (503) is also connected with between described counterweight trolley and the upper end of described slip joint;

The lifting mechanism of described slip joint (3) is set, described lifting mechanism comprises: with the capsizing moment spindle (601) of two capstan winches, described capsizing moment spindle is located on the mounting base (504) of counterweight trolley exhibition wall (501) front end by bearing frame, handwheel (603) is connected with in the rear end of capsizing moment spindle, hoist braiding suspender belt (602) one end connect firmly on the capsizing moment spindle (601) between two capstan winches, the other end connects firmly on the braiding suspender belt fixed link (302) of slip joint (3) bottom, the fixed pulley that Self-stabilised post base pitch (2) the outer wall top, middle part hoisting braiding suspender belt (602) is arranged is walked around,

The lockable mechanism of described slip joint (3) is set: described lockable mechanism comprises: the pawl base (701) being rigidly attached to capsizing moment spindle (601) front end by key, described pawl base is symmetrically connected with two ratchets (702) by bearing pin, torsion spring; The mounting base of counterweight trolley exhibition wall front end has been bolted ratchet brake mount (703), the aft end face of the ratchet (704) coordinated with described two ratchets (702) contacts with described ratchet brake mount (703) inner chamber seating plane, the ratchet platen (705) contacted with the front end face forming surface of described ratchet is set, the centre hole of described ratchet platen is threaded with brake-applying handle (706) and is locked by jam nut (707), and the excircle of ratchet platen is threaded with described ratchet brake mount intracavity sidewall.

2. lifting monolock according to claim 1 stops mechanical and electric equipment installation mechanism of hook type rotation substation, it is characterized in that, limit, top four outer wall of described column base pitch (2) is provided with deep groove ball bearing (201), a part for each described deep groove ball bearing extends into the inner chamber of column base pitch, and the axle of each deep groove ball bearing is laterally fixed on the outer wall of column base pitch; Limit, bottom four inwall of described slip joint (3) is provided with bearing (301) equally, and a part for each described bearing (301) extends the outside of slip joint, and the axle of each bearing is laterally fixed on the inwall of slip joint.