CN212222241U - Bridge frame of gantry crane - Google Patents

Abstract

The utility model discloses a bridge frame of a gantry crane, which comprises a main beam, wherein T-shaped grooves are symmetrically arranged at the left and right sides of the front end of the lower surface of the main beam, T-shaped sliders are slidably arranged in the T-shaped grooves, support legs are fixedly arranged on the lower surfaces of the T-shaped sliders, fixed plates are arranged on the left and right side walls of the support legs, the upper surfaces of the fixed plates are fixedly connected with the lower surface of the main beam, the left and right side walls of the support legs are provided with first inner thread holes, grooves are arranged on the side walls far away from the fixed plates on the left and right sides, clamping pieces are movably arranged in the grooves, the clamping pieces movably penetrate through the fixed plates, and outer threads are arranged at one ends of the clamping pieces close to the support legs, so that the problem that the joint of the main beam and the support legs of the existing gantry crane is unstable in structure, meanwhile, the support legs are weak in support strength after being corroded, so that the support legs are inconvenient to replace and the working efficiency is delayed.

Description

Bridge frame of gantry crane

Technical Field

The utility model relates to a hoist technical field, specific field is a crane span structure of gantry crane.

Background

The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and stockyards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

The existing portal crane main beam and supporting leg joint structure is not stable, the phenomenon of deviation is easy to occur, the trolley movement is influenced, the service life of the crane is shortened, and meanwhile, the supporting legs are weak in supporting strength after being corroded, inconvenient replacement is realized, and the work efficiency is delayed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gantry crane's crane span structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a bridge frame of a gantry crane comprises a main beam, wherein T-shaped grooves are symmetrically arranged at the left and right sides of the front end of the lower surface of the main beam, T-shaped sliders are respectively and slidably mounted inside the T-shaped grooves, support legs are respectively and fixedly mounted on the lower surfaces of the T-shaped sliders, fixing plates are respectively arranged on the left side wall and the right side wall of each support leg, the upper surfaces of the fixing plates are respectively and fixedly connected with the lower surface of the main beam, first inner thread holes are respectively formed in the left side wall and the right side wall of each support leg, grooves are respectively formed in the far side walls of the fixing plates on the left side and the right side, clamping pieces are movably arranged in the grooves, the clamping pieces movably penetrate through the fixing plates, external threads are respectively arranged at one ends, close to the support legs, baffles are fixedly mounted in the grooves, pressure springs are fixedly mounted on the far side walls of the support, the lower surface of the T-shaped check block is provided with a movable through bolt, the inner side wall of the T-shaped groove is provided with a threaded hole, the bolt and the threaded hole are matched for use, a trolley is arranged on the lower surface of the main beam in a sliding mode, two sides of the lower surface of the main beam are respectively and fixedly provided with a first travel switch and a second travel switch, and the trolley, the first travel switch and the second travel switch are all electrically connected with an external power supply.

Preferably, a check washer is arranged between the bolt and the lower surface of the T-shaped stop block.

Preferably, an operating handle is fixedly installed at one end, far away from the supporting legs, of the clamping piece.

Preferably, the cross section of the lower end of the supporting foot is in the shape of an isosceles trapezoid.

Preferably, the T-shaped sliding block and the support leg are connected through welding.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a gantry crane's crane span structure, be equipped with the T-slot, the T slider that appears, the T dog that appears, pressure spring and joint spare, move along the T-slot through the T slider, with stabilizer blade and girder fixed connection, the phenomenon of skew can not appear, with stabilizer blade and girder fixed connection through the joint spare, under the pressure effect of pressure spring, fixed fastness has been strengthened, it is too unstable with the landing leg junction structure to have solved current gantry crane girder, the phenomenon of wandering away appears easily, lead to the dolly motion to receive the influence, the life of hoist has been reduced, the stabilizer blade is corroded the back support intensity weak simultaneously, be not convenient for change, hinder work efficiency's problem.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention;

fig. 3 is a schematic left-side view sectional structure of the present invention.

In the figure: the device comprises a main beam 1, a T-shaped groove 2, a T-shaped sliding block 3, a supporting foot 4, a fixing plate 5, a first internal threaded hole 6, a groove 7, a clamping piece 8, an external thread 9, a baffle 10, a pressure spring 11, a T-shaped stop block 12, a bolt 13, a threaded hole 14, a trolley 15, a first travel switch 16, a second travel switch 17, a check washer 18 and an operating handle 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a bridge frame of a gantry crane refers to fig. 1, and comprises a main beam 1, wherein T-shaped grooves 2 are symmetrically arranged at the left and right sides of the front end of the lower surface of the main beam 1, T-shaped sliders 3 are slidably mounted inside the T-shaped grooves 2, support legs 4 are connected with the main beam 1 through the movement of the T-shaped sliders 3 along the T-shaped grooves 2, the T-shaped sliders 3 and the T-shaped grooves 2 are matched for use, so that the support legs 4 and the main beam 1 are prevented from deviating, the main beam 1 is prevented from deforming, the trolley cannot run smoothly, the support legs 4 are fixedly mounted on the lower surface of the T-shaped sliders 3, the support legs 4 are used for supporting the main beam 1, fixing plates 5 are arranged on the left side wall and the right side wall of each support leg 4, the upper surfaces of the fixing plates 5 are fixedly connected with the lower surface of the main beam 1, the support legs 4 and the main beam 1 are, the side walls of the left and right fixed plates 5 far away from each other are respectively provided with a groove 7, the grooves 7 are internally used for fixing a pressure spring 11, the fixation between a clamping piece 8 and a support leg 4 is enhanced through the pressure of the pressure spring 11, the clamping piece 8 is movably arranged in the groove 7, the clamping piece 8 movably penetrates through the fixed plate 5, one end of the clamping piece 8 close to the support leg 4 is respectively provided with an external thread 9, the external thread 9 of the clamping piece 8 is matched with a first internal thread 6 for use, the support leg 4 is fixedly connected with the main beam 1, under the action of the pressure spring 11, the pressure spring 11 pushes a baffle 10, the force for the clamping piece 8 to move towards the first internal thread hole 6 is given, the fixation stability is enhanced, the structure is simple, the fixation is firm and convenient to operate, the phenomenon of deviation between the support leg 4 and the main beam 1 is simultaneously ensured, the baffle 10 is fixedly arranged on the clamping piece 8 and positioned in the, one end of a pressure spring 11 contacts with a baffle 10, please refer to fig. 3, a T-shaped stop 12 is arranged in a T-shaped groove 2 in a sliding manner, the T-shaped stop 12 moves along the T-shaped groove 2, a T-shaped slider 3 is fixed in the T-shaped groove 2 through the T-shaped stop 12, a bolt 13 is movably penetrated through the lower surface of the T-shaped stop 12, a threaded hole 14 is arranged on the inner side wall of the T-shaped groove 2, the T-shaped stop 12 and a main beam 1 are fixedly connected through the bolt 13 and the threaded hole 14, not only is the support leg 4 convenient to replace, but also the structure is simple, the operation is convenient, the working efficiency of replacement is improved, the difficulty of workers is reduced, a trolley 15 is arranged on the lower surface of the main beam 1 in a sliding manner, a first travel switch 16 and a second travel switch 17 are respectively fixedly arranged on two sides of the lower surface of the main beam 1, and the, the trolley 15, the first travel switch 16 and the second travel switch 17 are all electrically connected with an external power supply.

Specifically, a lock washer 18 is arranged between the bolt 13 and the lower surface of the T-shaped stopper 12, so that the bolt 13 is prevented from loosening, and firmness is enhanced.

Particularly, one end of the clamping piece 8, which is far away from the supporting legs, is fixedly provided with an operating handle 19, so that the clamping piece 8 is convenient to operate.

Specifically, the cross section of the lower end of the support leg 4 is isosceles trapezoid, so that the device is supported more stably.

Particularly, the T-shaped sliding block 3 is connected with the supporting leg 4 through welding, so that the fixing firmness between the T-shaped sliding block 3 and the supporting leg 4 is enhanced.

The working principle is as follows: the utility model relates to a gantry crane's crane span structure, when using this device, pulling joint spare 8, be in the same place stabilizer blade 4 and girder 1 connection with T shape slider 4 along T shape groove 2, move T shape dog 12 along T shape groove 2, through bolt 13 with T shape dog 12 and girder 1 fixed connection, T shape slider 4 is fixed inside T shape groove 2 promptly, later operation joint spare 8, joint spare 8 is under the effect of pressure spring 11, external screw thread 9 and first internal thread hole 6 closely cooperate, with stabilizer blade 4 and 5 fixed connection of fixed plate, and is not only simple in structure, and convenient to use, therefore, the clothes hanger is strong in practicability.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a gantry crane's crane span structure, includes girder (1), its characterized in that: the lower surface front end bilateral symmetry of girder (1) is equipped with T shape groove (2), the equal slidable mounting in inside in T shape groove (2) has T shape slider (3), the equal fixed mounting of lower surface of T shape slider (3) has stabilizer blade (4), the left and right lateral wall of stabilizer blade (4) all is equipped with fixed plate (5), the upper surface of fixed plate (5) all is connected with the lower fixed surface of girder (1), the left and right lateral wall of stabilizer blade (4) all is equipped with first internal thread hole (6), all is equipped with recess (7) on the lateral wall that fixed plate (5) on the left and right sides kept away from mutually, recess (7) internalization is equipped with joint spare (8), joint spare (8) activity runs through fixed plate (5), the one end that joint spare (8) is close to stabilizer blade (4) all is equipped with external screw thread (9), fixed mounting has baffle (10) on joint spare (8) and be located recess (7), recess (7) are kept away from on the lateral wall of stabilizer blade (4) fixed mounting pressure spring (11), the one end and the baffle (10) contact of pressure spring (11), the interior equal slip of T shape groove (2) is equipped with T shape dog (12), the equal activity of lower surface through bolt (13) of T shape dog (12), the inside wall of T shape groove (2) all is equipped with screw hole (14), bolt (13) and screw hole (14) cooperation are used, the lower surface slip of girder (1) is equipped with dolly (15), the lower surface both sides of girder (1) are fixed mounting respectively has first travel switch (16) and second travel switch (17), dolly (15), first travel switch (16) and second travel switch (17) all are connected with external power source electricity.

2. The bridge of a gantry crane of claim 1, wherein: and a check washer (18) is arranged between the bolt (13) and the lower surface of the T-shaped stop block (12).

3. The bridge of a gantry crane of claim 1, wherein: and an operating handle (19) is fixedly arranged at one end of the clamping piece (8) far away from the supporting leg.

4. The bridge of a gantry crane of claim 1, wherein: the cross section of the lower end of the supporting leg (4) is isosceles trapezoid.

5. The bridge of a gantry crane of claim 1, wherein: the T-shaped sliding block (3) is connected with the supporting leg (4) through welding.

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