CN104291223B - Mechanical and electric equipment installation mechanism of supporting leg adjustable hook type lifting Dual-locking electric substation - Google Patents

Abstract

The invention discloses an installation mechanism for electromechanical equipment of a lifting double-locking substation with adjustable legs. , the fixed arm is equipped with a lockable telescopic arm, and the front end of the telescopic arm is provided with a hook for lifting equipment through a pulley block and a sling; There is an anti-tilt rope between them to prevent the mechanism from overturning. The expansion joint has a self-locking function in the base section of the column to ensure that the expansion joint cannot fall naturally. The lifting mechanism of the expansion joint has locking and braking functions and can stay at any height , Changed the operation form of manual installation of equipment in the substation section in the past, eliminated hidden safety hazards in the installation process, not only improved economic benefits, but also improved safety benefits.

Description

Outrigger adjustable hook type lifting double lock substation electromechanical equipment installation mechanism

Technical field:

The invention relates to an electromechanical equipment installation mechanism of a lifting double-locking substation with adjustable outriggers and hooks.

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 an installation mechanism for electromechanical equipment of a substation with adjustable legs and hooks, which has a simple structure, light weight, easy disassembly and assembly, and multiple functions. Convenient transportation and high work 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:

Outrigger adjustable hook type lifting double locking substation electromechanical equipment installation mechanism:

A mechanism base is provided, and the mechanism base includes cross-shaped outriggers with adjustable height at four corners and universal wheels arranged at the bottom of the outriggers, and the center of the mechanism base is provided with a longitudinal sleeve fixedly connected with the outriggers;

The cross-shaped outriggers are telescopic outriggers, and the telescopic outriggers are locked by locking bolts. Bolt holes are provided at the four corners of the cross-shaped outriggers, and leg height adjustment bolts matching the bolt holes are provided. The bottom of the adjusting bolt is a ball, and the load-bearing seat of the supporting leg is provided. The spherical groove for accommodating the rotation of the ball at the bottom of the adjusting bolt is arranged on the said load-bearing seat, and a cap screwed with the said bearing seat is provided to hold the ball confined within a spherical groove;

A column inserted on the sleeve is provided, and the upper half of the column is a square tube;

A square tube-type column base section inserted into the square tube of the 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. There is a telescopic arm, the two side walls of the telescopic arm are provided with limiting slots along the axial direction, bolt holes are provided on the corresponding two side walls of the fixed arm, and the locking bolts of the telescopic arm installed in the bolt holes pass through the limiting slots. The slot locks the telescopic joint; the lifting system for setting the hook includes: a movable pulley set on the hook, a fixed pulley set at the front end of the telescopic arm, a guide pulley at 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 extension arm, the counterweight trolley is hooked to the column with a square sleeve on the extension arm, and the bottom of the counterweight trolley is fixed to the mechanism base The connection is supported by the mechanism base;

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

The hoisting mechanism of the telescopic joint is provided, and the hoisting mechanism includes: a winch shaft with two winches, the winch shaft is erected on the installation base at the front end of the counterweight trolley arm through bearings, and the winch shaft The rear end is connected with a handwheel. 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 lifting braided sling fixing rod at the lower part of the expansion joint. The middle part of the braided sling is self-supporting. The fixed pulley set on the upper part of the outer wall of the joint bypasses;

Set the double locking mechanism of the telescopic joint:

The first 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; The ratchet brake seat is connected by bolts, 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, and a ratchet pressure plate is provided that is in surface contact with the front end surface of the ratchet. 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 threadedly connected with the inner cavity side wall of the ratchet brake seat;

The second locking mechanism includes: protruding ratchets (303) are fixed at equal intervals from top to bottom on one side of the expansion joint, and ratchet mounting ears are provided on the upper outer wall of the base joint of the column. The ratchet bar matched with the ratchet is installed on the ratchet bar mounting ear through a pin shaft and a torsion spring.

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 telescopic length of the outriggers and the height of the outriggers can be adjusted to meet the construction requirements of the complex terrain in the substation.

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 self-locking mechanism is an independent mast locking device. Every time the telescopic section of the mast is extended by 50mm, a ratchet lock is realized to ensure the suspension stability of the telescopic mast during hoisting and personnel operations.

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 material basket structure, which is set on the central slewing 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 column; Fig. 2A is an enlarged view of the four corners of the cross-shaped legs; Fig. 2B is a top view of the mechanism base; Fig. 3A, 3B, and 3C respectively It is the left view, the front view and the right view of the base section of the column; Figure 3D is a schematic diagram of the assembly of the deep groove ball bearings on the four sides of the upper part of the base section of the column; Figures 4A, 4B, and 4C are the left view, front view and right view of the expansion joint respectively ; Figure 4D is the F-direction view of the lower part of the expansion joint in Figure 4B; Figure 4E is a schematic diagram of the assembly of the inner wall bearings on the four sides of the lower part of the expansion joint; Figure 5 is a schematic diagram of the assembly of the column base section and the expansion joint; Schematic diagram of the structure of the arm; Figure 6C is an enlarged schematic diagram of the assembly of the telescopic arm, the fixed arm and the locking bolt of the telescopic arm; Figures 7A and 7B are the front view and top view of the counterweight trolley, and Figure 7C is the upper part of the extension arm of the counterweight trolley in Figure 7A Figure 8 is a schematic diagram of the expansion joint locking mechanism; 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 the ratchet pressure plate, Assembly diagram of ratchet and ratchet brake seat; Fig. 9A and 9B are the front view and top view of ratchet; Fig. 10 is a schematic diagram of assembly of ratchet, pawl seat and pawl; Fig. 11 is the assembly of pawl seat, winch shaft and hand wheel Schematic diagram; Figure 12 is a schematic diagram of the assembly of the winch shaft, pawl seat, and pawl.

Labels in the figure: 1 mechanism base, 101 cross-shaped outrigger, 102 universal wheel, 104 longitudinal sleeve, 105 column, 107 adjusting bolt, 108 bearing seat, 109 block cap, 2 column base section, 201 deep groove ball bearing, 202 Ratchet mounting ears, 203 ratchets, 3 telescopic joints, 301 limit platform, 302 lifting braided sling fixing rod, 303 bearings, 304 ratchets, 5 counterweight trolleys, 501 extension arms, 503 anti-tilt ropes, 504 installation bases Seat, 601 winch shaft, 602 lifting braided 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 and double-locking substation with adjustable outriggers and hooks in this embodiment are as follows:

A mechanism base 1 is provided. The mechanism base includes cross-shaped outriggers 101 with adjustable height at four corners and universal wheels 102 arranged at the bottom of the outriggers. The center of the mechanism base is provided with a longitudinal sleeve 104 fixedly connected with the outriggers.

In the specific setting, the cross-shaped support leg 101 is a telescopic support leg, and the telescopic leg is inserted into the fixed leg. The supporting leg height adjustment bolt 107 matched by the bolt hole, the bottom of the adjusting bolt is a spherical ball, the load-bearing seat 108 of the supporting leg is set, and the spherical groove for accommodating the rotation of the ball at the bottom of the adjusting bolt is arranged on the bearing seat, and it is arranged with the bearing seat 108 A threaded cap 109 confines the ball within the spherical recess.

In order to realize the rotation of the mechanism, a column 105 inserted on the longitudinal sleeve 104 is provided, and the upper half of the column is a square tube; The telescopic section 3 on the section 2 is integrally provided with a limit platform 301 on the upper outer wall of the telescopic section 3. 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 hung by the square sleeve at the rear. It is connected to the upper part of the telescopic joint, and is limited by the limiting platform of the telescopic joint to prevent it from falling. A telescopic arm 802 is arranged in the fixed arm, and the two side walls of the telescopic arm are provided with a limiting groove 803 along the axial direction. Corresponding to the fixed arm The two side walls are provided with bolt holes, and the telescopic arm locking bolts 804 installed in the bolt holes lock the telescopic joints through the limiting slots; the lifting system provided with the hooks includes: a movable hook 901 Pulley block 902, fixed pulley block 903 located at the front end of the telescopic arm, guide pulley 904 located at the end of the fixed arm and a suspension rope 905, the suspension rope 905 is driven by a motor or manpower to drive the hook up and down.

Set the counterweight trolley 5, the side of the counterweight trolley is fixed with a horizontally extending extension arm 501, the counterweight trolley is hooked on the column 105 by the square sleeve on the extension arm, and the bottom of the counterweight trolley is fixedly connected with the mechanism base Supported by mechanism base. 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 hand wheel 603, and one end of the lifting braiding sling 602 is fixedly connected to the winch shaft 601 between the two capstans, and the other end is fixedly connected to the lifting braiding sling fixing rod 302 at the bottom of the expansion joint 3, and the lifting braiding The middle part of suspender 602 walks around on the fixed pulley provided on the upper part of the outer wall of column base section 2 .

The double locking mechanism of the telescopic joint 3 is set, the first 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 to the pawl seat through a pin shaft and a torsion spring On the installation base of the front end of the trolley arm, a ratchet brake seat 703 is connected by bolts, and the rear end face of the ratchet wheel 704 that cooperates with the two ratchets 702 is in contact with the base surface of the inner cavity of the ratchet brake seat 703. Form the ratchet pressure plate 705 in surface contact, 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 second locking mechanism includes: protruding ratchets 304 are fixed at equal intervals from top to bottom on one side of the telescopic joint 3, and ratchet mounting ears 202 are provided on the upper outer wall of the column base section 2, which are connected with the ratchets. The matching ratchet bar 203 is installed on the ratchet bar mounting ear 202 through a pin shaft and a torsion spring, and a part of the ratchet bar 203 extends from the square hole at the ratchet bar mounting ear of the column base section into the ratchet teeth of the column base section and the outer wall of the expansion joint. 304 form a fit. Every time the expansion joint protrudes 50mm, a ratchet lock is realized to ensure that the suspension of the expansion joint is stable during hoisting and personnel operations.

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 the bucket basket needs to be lifted, turn the handwheel 603 in the forward direction, the handwheel drives the winch shaft 601 to rotate and wind the lifting braided sling 602, and the sling drives the expansion joint 3 to rise in the column base section 2, because the column base The friction between the joint 2 and the expansion joint 3 is rolling friction (the effect of the deep groove ball bearing 201 and the bearing 303), so the lifting force does not need to be large. When the expansion joint 3 rises to the specified height, stop turning the handwheel 603, Due to the effect of the 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 outer circumference of the ratchet plate 705. The thread is tightened 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 pawl seat 701 to only one-way Rotate, because the pawl seat 701 is rigidly connected on the capstan shaft 601, so the handwheel 603 can only rotate in the forward direction, ensuring that the telescopic joint 3 can stay at any height when it rises. In addition, since the ratchets 203 on the upper part of the column base block the ratchets 304 on the outer wall of the expansion joint, it is ensured that the expansion joint can only rise in one direction and cannot fall, which has played a double role in ensuring the safety of the operators. When the bucket basket needs to be lowered, the ratchet bar 203 first releases the limit of the ratchet 304, and then slightly reverses the brake handle 706. At this time, the ratchet pressure plate 705 also slightly withdraws from the ratchet brake seat 703, and the ratchet pressure plate 705 reduces the pressure on the ratchet 704, so the ratchet 704 can idle in the ratchet brake seat 703. Due to the effect of gravity, the bucket basket and the expansion joint 3 descend, driving the winch shaft 601 to reverse, and the winch shaft drives the ratchet seat and the ratchet 1. The ratchet drives the ratchet to rotate idly. When the telescopic joint needs to be stopped, the brake handle 706 only needs to be rotated forward to lock the ratchet in the ratchet brake seat.

Claims (2)

1. The installation mechanism of electromechanical equipment in substations with adjustable outriggers and hook type lifting and double locking is characterized by: Mechanism base (1) is set, and described mechanism base comprises the cross-shaped outrigger (101) of four-corner height adjustable and the universal wheel (102) that is located at the bottom of described cross-shaped outrigger, and the center of mechanism base is provided with cross-shaped Longitudinal sleeve (104) for the fixed connection of the legs; The cross-shaped outriggers (101) are telescopic outriggers, the telescopic outriggers are inserted into the fixed legs, and the telescopic outriggers are locked by locking bolts. Bolt holes are provided at the four corners of the telescopic outriggers. The height adjustment bolt (107) of the supporting leg matched with the bolt hole, the bottom of the adjusting bolt is a ball, and the load-bearing seat (108) of the supporting leg is set, and the bearing seat is provided with a seat for accommodating the rotation of the ball at the bottom of the adjusting bolt. Spherical groove, and the block cap (109) that is threadedly connected with described bearing seat (108) is set to limit described ball in the spherical groove; A column (105) inserted on the longitudinal sleeve (104) is provided, and the upper half of the column is a square tube; A square tube type column base section (2) inserted into the square tube of the column and a telescopic section (3) inserted into the column base section (2) are arranged, and on the upper part of the telescopic section (3) The outer wall is integrated with a limit platform (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 to 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 (802) is provided in the fixed arm, and the two side walls of the telescopic arm are provided with a limit slot (803) along the axial direction. Bolt holes are provided on the corresponding side walls of the bolt hole, and the telescopic arm locking bolts (804) installed in the bolt holes lock the telescopic arm through the limiting slot; the lifting system for setting the hook includes: The movable pulley block (902) that is located on the suspension hook (901), the fixed pulley block (903) that is located at the front end of the telescopic arm, the guide pulley (904) that is located at the end of the fixed arm and the suspension rope (905), the suspension rope ( 905) The hook is driven up and down by motor drive or manpower drive; A counterweight trolley (5) is set, the side of the counterweight trolley is fixed with a horizontally extending extension arm (501), and the counterweight trolley is articulated on the column (105) with a square sleeve on its extension arm , the bottom of the counterweight trolley is fixedly connected to the mechanism base and supported by the mechanism base; An anti-rolling rope (503) is also connected between the counterweight trolley and the upper end of the expansion joint; The hoisting mechanism of the telescopic joint (3) is provided, and the hoisting mechanism includes: a winch shaft (601) with two winches, and the winch shaft is mounted on the front end of the counterweight trolley extension arm (501) through a bearing. On the installation base (504), a hand wheel (603) is connected to the rear end of the winch shaft, and one end of the lifting braided sling (602) is fixedly connected to the winch shaft (601) between the two winches, and the other end is fixed Linked on the lifting braided sling fixed rod (302) at the bottom of the expansion joint (3), the middle part of the hoisting woven sling (602) walks around on the fixed pulley provided on the upper part of the outer wall of the column base section (2); Set the double locking mechanism of the expansion joint (3): The first 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 to the pawl seat by a pin shaft and a torsion spring; A ratchet brake seat (703) is connected to the mounting base of the front end of the counterweight trolley arm by bolts, and the rear end surface of the ratchet (704) matched with the two ratchets (702) is connected to the ratchet brake seat (703). The base surface of the inner cavity is in contact with the ratchet pressure plate (705) which is in surface contact with the front end surface of the ratchet. The central hole of the ratchet pressure plate is threaded with the brake handle (706) and passed through the lock nut (707). Locking, the outer circumference of the ratchet pressure plate is threadedly connected to the inner cavity side wall of the ratchet brake seat; The second locking mechanism includes: protruding ratchets (304) are fixed at equal intervals from top to bottom on one side of the expansion joint (3), and are provided on the upper outer wall of the column base section (2). There are ratchet mounting ears (202), and the ratchets (203) cooperating with the ratchets are installed on the ratchet mounting ears through pin shafts and torsion springs. 2. The installation mechanism for electromechanical equipment of substation with adjustable legs according to claim 1, characterized in that, the outer walls of the upper four sides of the base section of the column (2) are provided with deep groove ball bearings (201), 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; the lower four-side inner wall of the telescopic section (3) Bearings (303) are also provided, a part of each bearing (303) extends out of the expansion joint, and the shaft of each bearing is fixed laterally on the inner wall of the expansion joint.