CN212387582U - Span-adjustable bridge crane - Google Patents

Abstract

The utility model discloses a span-adjustable bridge crane, which comprises a girder, wherein the left and right side walls of the girder are respectively provided with a chute, the inner cavity of the chute is movably provided with an elongated beam, the lower end of the elongated beam is fixedly provided with supporting legs, the lower surface of the girder is bilaterally symmetrical to be provided with a limiting groove, the limiting groove and the supporting legs are matched for use, the inner cavity of the elongated beam is respectively and symmetrically provided with a plurality of first grooves, the front and back side walls of the girder are respectively and leftwards provided with a second groove, the front and back inner cavity of the girder are respectively and symmetrically provided with a third groove, the second grooves and the third grooves are respectively communicated with each other, the front and back side walls of the elongated beam are respectively provided with a plurality of fourth grooves, the first grooves and the fourth grooves are respectively communicated with each other, thereby solving the problems that the span of the existing crane is inconvenient to change, is not practical and reduces the working efficiency.

Description

Span-adjustable bridge crane

Technical Field

The utility model relates to a hoist technical field, specific field is a span adjustable bridge crane.

Background

With the rapid development of social economy and logistics industry, cranes are increasingly applied in production practice activities, and at the present stage, China is in a period of vigorous infrastructure construction, particularly the development of rail transit modes, a large amount of bridges and rails need to be repaired, and more advanced auxiliary equipment is needed. Need increase, reduce girder length when the hoist large-span on the existing market is adjusted, need the dress landing leg flange connection board of reemplifying, increase and come and go the transportation expense, and site conditions limits can't reach the required precision, and current hoist span changes inconveniently, uses inconveniently in a lot of places, and the security is low, and is very unpractical, reduces work efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a span adjustable bridge crane 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 crane with adjustable span comprises a main beam, wherein sliding grooves are respectively arranged on the left side wall and the right side wall of the main beam, an elongated beam is movably arranged in an inner cavity of each sliding groove, supporting legs are respectively and fixedly arranged at the lower end of each elongated beam, limiting grooves are respectively and symmetrically arranged on the left side and the right side of the lower surface of the main beam, the limiting grooves and the supporting legs are matched for use, a plurality of first grooves are respectively and symmetrically arranged in the front and back of the inner cavity of the elongated beam, second grooves are respectively and symmetrically arranged on the left side and the right side walls of the main beam, third grooves are respectively and symmetrically arranged in the front and back of the inner cavity of the main beam, the second grooves and the third grooves are respectively communicated with each other, a plurality of fourth grooves are respectively arranged on the front and back side walls of the elongated beam, the first grooves and the fourth grooves are respectively communicated with each other, flanges are respectively and fixedly arranged on the left, the limiting plate is fixedly mounted at one end, close to the first groove, of the limiting rod, the limiting plate and the first groove are matched for use, the front side and the rear side are respectively provided with a moving groove in a symmetrical mode on the side wall far away from the flange and the side wall of the main beam, the moving grooves are communicated with the first groove, a spring is arranged between the second groove and the limiting rod, and the limiting rod is fixedly connected with the flange.

Preferably, the equal longitudinal symmetry in one end that first recess was kept away from to the gag lever post is equipped with first draw-in groove, the equal longitudinal symmetry in inner circle of flange is equipped with the second draw-in groove, first draw-in groove and second draw-in groove all communicate, the fixture block has been placed in first draw-in groove and the second draw-in groove, equal threaded connection has locking bolt on the upper and lower lateral wall of flange.

Preferably, the shape of the fixture block is rectangular.

Preferably, the width of the limiting groove is larger than the thickness of the supporting foot.

Preferably, the first groove and the limiting plate are circular.

Preferably, the main beam and the flange are connected through welding.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a span adjustable bridge crane, be equipped with the gag lever post, the limiting plate, the flange, the spout, the extension beam, first recess and motion groove, according to the space in use place, adjust the position of extension beam, change the span of hoist, limiting plate and motion groove through on the gag lever post coincide, promote limiting plate and first recess cooperation to use promptly, rotate the gag lever post, first recess carries on spacingly to the limiting plate promptly, through bolt with flange and gag lever post fixed connection, it is inconvenient to have solved current hoist span change, it is inconvenient to use in many places, the security is low, very low, reduce 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 schematic left-side sectional structure of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2 according to the present invention;

fig. 4 is a schematic view of the structure of the utility model with the limiting rod removed.

In the figure: 1-main beam, 2-sliding chute, 3-extension beam, 4-supporting foot, 5-limiting groove, 6-first groove, 7-second groove, 8-third groove, 9-fourth groove, 10-flange, 11-limiting rod, 12-limiting plate, 13-first clamping groove, 14-second clamping groove, 15-motion groove, 16-spring, 17-clamping block and 18-locking bolt.

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. 1-4, the present invention provides a technical solution: a span-adjustable bridge crane, please refer to fig. 1, comprising a main beam 1, wherein the left and right side walls of the main beam 1 are respectively provided with a sliding groove 2, the sliding grooves 2 at both sides of the main beam 1 are used for movably embedding an elongated beam 3 into the inner cavity of the main beam 1, the length of the main beam 1 is lengthened by movably arranging the elongated beam 3 in the inner cavity of the sliding groove 2, not only is the length of the main beam 1 adjusted, but also the span of the crane is increased by moving the elongated beam 3, the inner cavity of the sliding groove 2 is movably provided with the elongated beam 3, the lower end of the elongated beam 3 is fixedly provided with supporting feet 4, the distance of the supporting feet 4 is changed by moving the elongated beam 3, thereby changing the span of the crane, please refer to fig. 2, the left and right symmetrical lower surfaces of the main beam 1 are provided with limiting grooves 5, the limiting grooves 5 are used for facilitating the movement of the supporting feet 4, the left and right ends of the limiting grooves 5 do not, avoiding increasing the working difficulty, the limiting groove 5 and the supporting foot 4 are matched for use, a plurality of first grooves 6 are symmetrically arranged in the front and back of the inner cavity of the lengthened beam 3, the first grooves 6 are used for limiting the limiting plate 12, please refer to fig. 3, second grooves 7 are respectively arranged on the left and right of the front side wall and the back side wall of the main beam 1, third grooves 8 are symmetrically arranged in the front and back of the inner cavity of the main beam 1, the third grooves 8 are positioned between the front and back side second grooves 7, the second grooves 7 and the third grooves 8 are used for inserting the limiting rod 11 for fixing and limiting, the second grooves 7 and the third grooves 8 are communicated with each other, a plurality of fourth grooves 9 are respectively arranged on the front and back side wall of the lengthened beam 3, the limiting rod 11 sequentially and movably penetrates through the second grooves 7, the third grooves 8 and the fourth grooves 9, namely, the limiting plate 12 and the first grooves 6 are matched for use, the first grooves 6 and the fourth grooves 9 are, flanges 10 are fixedly arranged on the left side and the right side of the front side wall and the rear side wall of the main beam 1 respectively, the flanges 10 are fixedly connected with the main beam 1 through welding, limiting rods 11 are fixedly connected through the flanges 10 by bolts, the fixing is firm and convenient to use, and the lengthened beam 3 is convenient to move, so that the span of the crane is changed, limiting rods 11 are movably arranged on the inner rings of the flanges 10, the limiting rods 11 movably penetrate through fourth grooves 9 respectively, limiting plates 12 are fixedly arranged at the ends, close to the first grooves 6, of the limiting rods 11 respectively, the limiting plates 12 are matched with the first grooves 6 for use, the side walls, far away from the flanges 10, of the front side and the rear side wall of the main beam 1 are respectively provided with motion grooves 15 in bilateral symmetry, the motion grooves 15 are used for facilitating the motion of the limiting plates 12, when the limiting plates 12 are contacted with the first grooves 6, the limiting rods 11 are rotated, namely the limiting plates 12 are rotated, avoid gag lever post 11 and second recess 7 to break away from, move groove 15 all communicates with first recess 6, is equipped with spring 16 between second recess 7 and the gag lever post 11, fixes spacingly through spring 16 to gag lever post 11, when little fine motion appears in gag lever post 11, ensures that gag lever post 11 is fixed firm under spring 16's effect promptly, improves life, gag lever post 11 and flange 10 fixed connection.

Particularly, the equal longitudinal symmetry in one end that first recess 6 was kept away from to gag lever post 11 is equipped with first draw-in groove 13, the equal longitudinal symmetry in inner circle of flange 10 is equipped with second draw-in groove 14, cooperation through first draw-in groove 13 and second draw-in groove 14 is used, it is spacing through fixture block 17, it is spacing to rotate between gag lever post 11 and the flange 10, avoid gag lever post 11 to take place to rotate the phenomenon, lead to fixed insecure, first draw-in groove 13 and second draw-in groove 14 all communicate, fixture block 17 has been placed in first draw-in groove 13 and the second draw-in groove 14, equal threaded connection has locking bolt 18 on the upper and lower lateral wall of flange 10, press from both sides fixture block 17 through locking bolt 18 and press from both sides fixedly, ensure that fixture block 17.

Specifically, the shape of the latch 17 is rectangular, which increases the limit strength and ensures firm fixation.

Particularly, the width of the limiting groove 5 is larger than the thickness of the supporting foot 4, so that the supporting foot 4 can move conveniently.

Particularly, the shape of first recess 6 and limiting plate 12 is circular, and the limiting plate 12 of being convenient for rotates, and first recess 6 moves spacing to limiting plate 12.

Specifically, the main beam 1 and the flange 10 are connected by welding, so that the fixing is firm, and the supporting strength is ensured.

The working principle is as follows: the utility model relates to a span adjustable bridge crane, when using this device, according to the space of different use factory buildings, and the space of use place, the space is less, loosen gag lever post 11 and flange 10, loosen between locking bolt 18 and the fixture block 17, rotate gag lever post 11, until the limiting plate 12 and motion groove 15 coincide, namely gag lever post 11 is pulled to keeping away from flange 10 direction, the left and right sides extension beam 3 moves in opposite directions, move to the position of use, through the limiting plate 12 on gag lever post 11 and motion groove 15 coincide, the gag lever post inserts in second recess 7, rotate limiting plate 12, use with first recess 6 cooperation, fixture block 17 uses with first draw-in groove 13 and second draw-in groove 14 cooperation, fix through locking bolt 18, later through bolt with gag lever post 11 and flange 10 fixed connection, not only convenient to use, and be convenient for change the span, the practicality is strong, easily uses widely, and when the space was great, be about to about 3 back-to-back motion of extension roof beams, increase the span of hoist, easy operation.

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 (6)

1. The utility model provides a span adjustable bridge crane, includes girder (1), its characterized in that: the novel long girder comprises a main girder (1), sliding grooves (2) are formed in the left side wall and the right side wall of the main girder (1), an inner cavity of each sliding groove (2) is movably provided with a lengthened beam (3), supporting legs (4) are fixedly mounted at the lower ends of the lengthened beams (3), limiting grooves (5) are symmetrically formed in the left side and the right side of the lower surface of the main girder (1), the limiting grooves (5) and the supporting legs (4) are matched for use, a plurality of first grooves (6) are symmetrically formed in the front and the back of the inner cavity of each lengthened beam (3), second grooves (7) are symmetrically formed in the left side and the right side wall of the front and the back of the main girder (1), third grooves (8) are symmetrically formed in the front and the back of the inner cavity of the main girder (1), the second grooves (7) and the third grooves (8) are communicated with each other, a plurality of fourth grooves (9) are formed in the front and the back of, fixed mounting all controls on the lateral wall around girder (1) has flange (10), the equal activity of inner circle of flange (10) is equipped with gag lever post (11), gag lever post (11) equal activity runs through fourth recess (9), the equal fixed mounting of one end that gag lever post (11) is close to first recess (6) has limiting plate (12), limiting plate (12) and first recess (6) cooperation are used, the front and back side flange (10) keep away from mutually on the lateral wall with equal bilateral symmetry is equipped with motion groove (15) on the lateral wall around girder (1), motion groove (15) all communicate with first recess (6), be equipped with spring (16) between second recess (7) and gag lever post (11), gag lever post (11) and flange (10) fixed connection.

2. A span adjustable bridge crane as claimed in claim 1, wherein: the equal longitudinal symmetry in one end that first recess (6) was kept away from in gag lever post (11) is equipped with first draw-in groove (13), the equal longitudinal symmetry in inner circle of flange (10) is equipped with second draw-in groove (14), first draw-in groove (13) and second draw-in groove (14) all communicate, fixture block (17) have been placed in first draw-in groove (13) and second draw-in groove (14), equal threaded connection has locking bolt (18) on the upper and lower lateral wall of flange (10).

3. A span adjustable bridge crane as claimed in claim 2, wherein: the fixture block (17) is rectangular.

4. A span adjustable bridge crane as claimed in claim 1, wherein: the width of the limiting groove (5) is larger than the thickness of the supporting leg (4).

5. A span adjustable bridge crane as claimed in claim 1, wherein: the first groove (6) and the limiting plate (12) are circular in shape.

6. A span adjustable bridge crane as claimed in claim 1, wherein: the main beam (1) and the flange (10) are connected through welding.

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