CN2202739Y - Single-beam suspended track type electric hoist - Google Patents

Abstract

The utility model relates to a track electric hoist of a single-beam suspended type, belonging to the technical field of cranes and hoists. The utility model is composed of two linkage carts and the orbit beams thereof, a fixed orbit beam and a track mechanism, wherein, both the two linkage carts and the fixed orbit beam adopt a single-beam structure. The utility model has the advantages of simple structure and low requirements for technology. Four joints which are butted in two pairs by H-shaped beams are reduced to two joints; in addition, the track mechanism adopts the structure of double pendulum cams, so that an electric hoist which can track safely only by opening a movable spacing plate can not slidedown automatically. The utility model plays a safe role, and is ideal special equipment for lifting.

Description

Single-beam suspended track type electric hoist

The utility model relates to the Special Hoisting Equipment that a kind of thermal powerplant is used to lift by crane the coal mill parts, and it belongs to hoisting crane, cucurbit technical field.

Before the utility model, some large-size thermal power plants adopt " the twin beams suspension type is crossed the rail hoisting crane " specialized equipment as the maintenance coal mill usually, all adopt this specialized equipment as Shanghai Wu Jing thermoelectric power station, Shandong stone transverse electric factory, Anhui Ping Xu power plant, this specialized equipment is made up of moving " twin beams " the electronic cart (separator for coal mill must lift by crane simultaneously with two hoisting cranes) of two All-China Federation of Taiwan Compatriots, two electric block dollies (respectively adorning an electric block on the dolly) and " twin beams " manual cart.During the coal mill maintenance, two electric block dollies are crossed on the manual cart of rail to two " twin beams " through the rail device from the electronic cart of two All-China Federation of Taiwan Compatriots moving " twin beams ", just can lift by crane the parts of coal mill (position of coal mill is to be in two " twin beams " manually centre of cart), and then turn back on " twin beams " electronic cart, will overhaul object by " twin beams " electronic cart and transport the repair workshop repairing to.Two electric block dollies are crossed rail from " twin beams " electronic cart and manually will be met four abutment joints simultaneously on the cart to " twin beams ", i.e. eight H-girder two or two butt joints, eight H-girders are because the flatness of itself, parallelism during installation and relative height, difficulty is than higher on the technological requirement, otherwise four joints will about, about stagger or produce excessive gap, make two electric block dollies cross rail difficulty or stuck, so that whole equipment can't use.

The purpose of this utility model is to avoid weak point of the prior art and designs a kind of single-beam suspension type and cross the rail electric block.

Task of the present utility model is finished by following measures: the utility model by the moving cart of two All-China Federation of Taiwan Compatriots and track girder, trapped orbit beam, cross the trailer structure and form, cart moves in two All-China Federation of Taiwan Compatriots, the trapped orbit beam all adopts single-spar construction, cancellation electric block dolly, electric block directly is suspended on the crossbeam of interlock cart, only meet two joints when electric block is crossed rail like this, promptly have only four H-girder two or two butt joints, its technology can greatly reduce.Cross the trailer structure and adopted the double pendulum cam structure, open movable positioning plate, electric block could safety be crossed rail, and after electric block was crossed rail, the reposition under its action of gravity of movable positioning plate limited the current of electric block, and guarantees can not slide voluntarily.

Accompanying drawing 1 is crossed rail electric block schematic perspective view for the single-beam suspension type;

Accompanying drawing 2 was a trailer structure schematic perspective view;

Accompanying drawing 3 is the connection diagrams of two carts by pin (19), beam (10).

The utility model describes in detail embodiment below with reference to accompanying drawing: a kind of single-beam suspension type that is used to lift by crane the coal mill parts is crossed the rail electric block, it is by moving cart of two All-China Federation of Taiwan Compatriots and track girder (1) thereof, trapped orbit beam (2), crossing trailer structure three parts forms, as shown in Figure 1, track girder (1) is two parallel H-girders and is suspended on the building construction, the moving cart of two All-China Federation of Taiwan Compatriots all adopts single-spar construction, and every cart is by beam (3), electric block (4), transmission shaft (5), brake gear (6), two cover traveling geaies (7), sprocket wheel (8), chain (9) is formed.Electric block (4) is suspended on the beam (3), can on beam (3), slide, the traveling gear (7) on beam (3) both sides is separately fixed on the last plane of beam (3), being in has transmission shaft (5) to connect between every cover traveling gear (7) on beam (3) both sides, have sprocket wheel (8) and chain (9) thereof, brake gear (6) on the transmission shaft (5).Two carts are by pin (19), two beams (10) interconnect and are integral, as shown in Figure 3, being connected to of they flexibly connects, after two carts link into an integrated entity, just move together and stop, therefore claim two All-China Federation of Taiwan Compatriots to move cart, the quadruplet traveling gear (7) of two carts is suspended on two track girders (1) respectively, and can go up walking by track girder (1), two carts are by pin (19), beam (10) connects, the wheel that flexibly connects to quadruplet traveling gear (7) like this can contact with track girder (1) and walking in the above equably, running condition is: drive sprocket wheel (8) with hand pulling chain (9) and priority, transmission shaft (5), traveling gear (7) (traveling gear (7) is fixed together with beam (3)), the moving cart of such two All-China Federation of Taiwan Compatriots just can freely be gone up walking at track girder (1), the moving cart of two All-China Federation of Taiwan Compatriots stops not to be shifted if desired, then only need by brake gear (6), transmission shaft (5) is not rotated, then traveling gear (7) is not just walked, and stops at a certain position of track girder (1) and static.Move the both sides of a side coal mill of cart in two All-China Federation of Taiwan Compatriots and settled trapped orbit beam (2), orbit as electric block (4), trapped orbit beam (2) is made up of two H-girders, and be suspended on the building construction, it is lonely crooked that one end of trapped orbit beam (2) all inwardly is the garden, make the workpiece of the suspension centre of electric block (4) near handling, its other end is the straight portion that is parallel to each other, distance and level height on the moving cart of spacing between them and level height and two All-China Federation of Taiwan Compatriots between two beams (3) are complementary, because two electric blocks (4) were gone up rail to two H-girders of trapped orbit beam (2) from two beams (3) that two All-China Federation of Taiwan Compatriots are moved on the cart respectively, when two electric blocks (4) upward get final product handling coal mill parts in addition at trapped orbit beam (2), cross then on two beams (3) of rail to the moving cart of two All-China Federation of Taiwan Compatriots, use hand pulling chain (9) that the moving cart of two All-China Federation of Taiwan Compatriots is transported to repair workshop again.Two electric blocks (4) are crossed rail to trapped orbit beam (2) from two beams (3), need the transversal surface of two beams (3) to aim at the transversal surface of two H-girders of trapped orbit beam (2), on its transversal surface, adopt the induction type probe, when two moving carts are gone up operation at track girder (1), when the transversal surface of two H-girders of the transversal surface of two beams (3) and trapped orbit beam (2) on time, the induction type probe can send sound and light signal, at this moment, apply the brakes device (6), the moving cart of two All-China Federation of Taiwan Compatriots is stopped on this position of track girder (1), two electric blocks this moment (4) performed the dead work of rail, make two electric blocks (4) cross rail safely, need one and overlapped the trailer structure, this crosses the trailer structure is to adopt the double pendulum cam structure, it is by cross bar (11) that every suit is crossed the trailer structure, bangle (12), axle (13), bearing (14), bearing props up suspension rod (15), movable positioning plate (16,17), fixed limit plate (18), pin (19), rope sheave (20), rope (21) is formed, as shown in Figure 2, one end of axle (13) and an end of cross bar (11) are fixed, the other end and rope sheave (20) are fixed and are hinged on the trapped orbit beam (2), the other end of cross bar (11) links to each other with bangle (12), movable positioning plate (16,17) be hinged on trapped orbit beam (2) respectively by pin (19), on the beam (3), the head of movable positioning plate (16) is on the head of movable positioning plate (17), two blocks of fixed limit plates (18) are near movable positioning plate (16,17) inboard also is separately fixed at trapped orbit beam (2), on the beam (3), one end of rope (21) is connected with the afterbody of movable positioning plate (16), and the other end is connected with rope sheave (20).Bearing (14) is enclosed within on the axle (13), and an end and building that bearing props up suspension rod (15) fix, and the other end and bearing (14) fix.Two electric blocks (4) need two and overlapped the trailer structure, when two electric blocks (4) when needing rail, only behind moving cart of two All-China Federation of Taiwan Compatriots and trapped orbit beam (2) aligning, when probe sends sound and light signal, could cross rail, at this moment start chain (12) with pulling, stir cross bar (11), rolling bearing (13) and rope sheave (20), pulling rope (21), the afterbody of movable positioning plate (16) upwards rotates (clockwise rotating) around pin (19), its head is downward, the head of movable positioning plate (17) is pressed down, make its afterbody upwards rotate (rotating counterclockwise) around pin (19), when movable positioning plate (16, when 17) upwards rotating, slot milling can not block electric block (4), electric block (4) can pass through movable positioning plate (16 smoothly, 17), after electric block (4) passes through, movable positioning plate (16,17) gravitate, set back, owing to designed fixed limit plate (18), prevent movable positioning plate (16,17) transition is rotated, blocked the activity of electric block (4), electric block (4) can be voluntarily from trapped orbit beam (2), beam slides on (3), so cross the effect that the trailer structure has played security insurance.In addition, movable positioning plate (17) is towards counter-rotational by the rotation of movable positioning plate (16), it is passive, so the moving cart of two All-China Federation of Taiwan Compatriots have only aim at trapped orbit beam (2) after, movable positioning plate (17) just can be opened, so the moving cart of two All-China Federation of Taiwan Compatriots is in other any position, movable positioning plate (17) can not be opened, and electric block (4) can not get off in landing yet.

The utlity model has simple in structure, technological requirement is low, safety of operation, is a kind of comparatively desirable Special Hoisting Equipment.

Claims (1)

1, a kind of single-beam suspension type that is used to lift by crane the coal mill parts is crossed the rail electric block, it by the moving cart of two All-China Federation of Taiwan Compatriots and track girder (1), trapped orbit beam (2), cross the trailer structure and form of the present utility model being characterised in that:

A, the moving cart of above-mentioned said two All-China Federation of Taiwan Compatriots all adopt single-spar construction, every cart is made up of beam (3), electric block (4), transmission shaft (5), brake gear (6), two cover traveling geaies (7), sprocket wheel (8), chain (9), electric block (4) is suspended on the beam (3), the traveling gear (7) on beam (3) both sides is separately fixed on the last plane of beam (3), there is transmission shaft (5) to connect between every cover traveling gear (7) on both sides, has sprocket wheel (8) and chain (9) thereof, brake gear (6) on the transmission shaft (5); Two carts interconnect and are integral by pin (19), two beams (10), and the quadruplet traveling gear (7) of two carts is suspended on two track girders (1) respectively;

B, above-mentioned said trapped orbit beam (2) are made up of two single-beams, one end of trapped orbit beam (2) all inwardly is garden arc bending, its other end is the straight portion that is parallel to each other, and distance and level height on its spacing and level height and two carts between two beams (3) are complementary;

C, the above-mentioned said trailer structure of crossing is to adopt the double pendulum cam structure, it is by cross bar (11), bangle (12), axle (13), bearing (14), bearing props up suspension rod (15), movable positioning plate (16,17), fixed limit plate (18), pin (19), rope sheave (20), rope (21) is formed, one end of axle (13) and cross bar (11) are fixing, the other end and rope sheave (20) are fixed and are hinged on the trapped orbit beam (2), one end of cross bar (11) links to each other with bangle (12), movable positioning plate (16,17) be hinged on trapped orbit beam (2) respectively by pin (19), on the beam (3), the head of movable positioning plate (16) is on the head of movable positioning plate (17), two blocks of fixed limit plates (18) are near movable positioning plate (16,17) inboard also is separately fixed at trapped orbit beam (2), on the beam (3), one end of rope (21) is connected with the afterbody of movable positioning plate (16), the other end is connected with rope sheave (20), bearing (14) is enclosed within on the axle (13), an end and building that bearing props up suspension rod (15) fix, and the other end and bearing (14) fix.

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