CN212103701U - Span-changing mechanism of bridge erecting machine - Google Patents

Abstract

The utility model discloses a mechanism is striden in change of frame bridge crane, including installing frame, electric pneumatic cylinder, motor and backup pad, the intermediate position department of the inside of installing frame installs the division board, and the lateral wall at division board both ends all installs electric pneumatic cylinder, first slide rail is all installed to the lateral wall at the inside both ends of installing frame, and the inside of first slide rail is provided with first slider, the one end that first slide rail was kept away from to first slider is installed and is lengthened the board, the connecting rod is all installed on the top of installing frame, and the top of connecting rod installs the fixed plate, the bracing piece is installed on the top of fixed plate, the backup pad is all installed at the both ends on fixed plate top, the motor is installed on the top of backup pad, and the output of motor installs the pivot through the shaft. The span-changing mechanism of the bridge girder erection machine is connected with the lengthened plate through the steel wire rope, so that the steel wire rope can conveniently generate pulling force on the lengthened plate, and the span of the bridge girder erection machine can be conveniently adjusted to be firmer.

Description

Span-changing mechanism of bridge erecting machine

Technical Field

The utility model relates to a bridge girder erection machine technical field specifically is a mechanism is striden in change of bridge girder erection machine.

Background

The bridge girder erection machine is equipment for placing a prefabricated beam piece on a prefabricated pier, belongs to the category of cranes, and has the main function of lifting the beam piece, then conveying the beam piece to the position and putting down the beam piece, so that the bridge girder erection machine is greatly different from a crane in the general meaning, the required conditions are harsh, walking on the beam piece or longitudinal moving exists, the bridge girder erection machine needs to adjust the span size according to a bridge when in use, and the traditional bridge girder erection machine span-changing mechanism can basically meet the use requirements of people, but still has certain problems, and the specific problems are as follows:

1. most of bridge girder erection machine span-changing mechanisms in the market at present have complex structures, are inconvenient for operators to operate and bring inconvenience when the operators adjust the span of the movable bridge girder erection machine;

2. most of bridge girder erection machines on the market at present become to stride the mechanism, and the fastness is lower when adjusting the span, does not have fixed establishment, makes the bearing capacity of this bridge girder erection machine reduce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanism is striden in change of frame bridge crane to the structure of proposing in solving above-mentioned background is comparatively complicated, and the operating personnel of being not convenient for operate, fastness when adjusting the span is lower, does not have fixed establishment's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mechanism is striden in change of frame bridge crane, includes installing frame, electric pneumatic cylinder, motor and backup pad, the intermediate position department of the inside of installing frame installs the division board, and the lateral wall at division board both ends all installs electric pneumatic cylinder, first slide rail is all installed to the lateral wall at the inside both ends of installing frame, and the inside of first slide rail is provided with first slider, the one end that first slide rail was kept away from to first slider is installed and is lengthened the board, the connecting rod is all installed on the top of installing frame, and the top of connecting rod installs the fixed plate, the bracing piece is installed on the top of fixed plate, the backup pad is all installed at the both ends on fixed plate top, the motor is installed on the top of backup pad, and the output of motor installs.

Preferably, one end of the elongated plate is connected with the electric pneumatic cylinder, and the side walls of the two sides of the elongated plate are provided with limit grooves.

Preferably, a reel is sleeved on the outer wall of the rotating shaft, and a steel wire rope connected with the lengthened plate is arranged in the reel.

Preferably, the lateral wall of fixed plate one side is installed the leading wheel, and the inside and the wire rope of leading wheel are laminated mutually.

Preferably, a second slide rail is installed at the bottom end of the fixing plate, and a second slide block is arranged inside the second slide rail.

Preferably, the bottom end of the second sliding block is provided with a limiting rod matched with the limiting groove, and the limiting rod is L-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: a span-changing mechanism of the bridge girder erection machine;

1. by installing the electric pneumatic cylinder, the lengthening plate, the first slide rail and the first slide block, the electric pneumatic cylinder is started to drive the lengthening plate to slide in the first slide rail through the first slide block and move out to two ends through the mutual matching of the first slide rail and the first slide block, so that the span of the bridge girder erection machine can be conveniently adjusted, and the operation of an operator can be conveniently carried out;

2. meanwhile, the device is provided with the motor, the rotating shaft, the reel, the steel wire rope and the lengthened plate, the rotating shaft and the reel are driven to rotate by starting the motor, the reel is enabled to wind the steel wire rope, and the steel wire rope is connected with the lengthened plate, so that the steel wire rope can conveniently generate pulling force on the lengthened plate, and the span of the bridge erecting machine can be more firm when being adjusted;

3. the device is through installing second slider, second slide rail, L type gag lever post and spacing groove simultaneously, mutually supports through second slider and second slide rail, makes operating personnel remove through the second slider through pulling L type gag lever post, is convenient for make L type gag lever post and spacing groove looks block, is convenient for carry out further fixed to the extension plate, avoids this bridging machine to carry out the bearing capacity reduction when adjusting the span.

Drawings

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

FIG. 2 is a schematic view of the structure of the utility model after adjustment;

FIG. 3 is a schematic left side view of the cross-sectional structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. installing a frame; 2. a partition plate; 3. an electric pneumatic cylinder; 4. a connecting rod; 5. a lengthening plate; 6. a wire rope; 7. a guide wheel; 8. a motor; 9. a rotating shaft; 10. a fixing plate; 11. a support bar; 12. a reel; 13. a first slide rail; 14. a first slider; 15. a limiting rod; 16. a support plate; 17. a second slide rail; 18. a second slider; 19. a limiting groove.

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 an embodiment: a span-changing mechanism of a bridge erecting machine comprises a mounting frame 1, electric pneumatic cylinders 3, a motor 8 and a support plate 16, wherein a partition plate 2 is mounted in the middle of the inside of the mounting frame 1, the electric pneumatic cylinders 3 are mounted on the side walls of the two ends of the partition plate 2, the type of the electric pneumatic cylinder 3 can be SC80X100S, first slide rails 13 are mounted on the side walls of the two ends of the inside of the mounting frame 1, a first slide block 14 is arranged inside the first slide rails 13, and an extension plate 5 is mounted at one end, far away from the first slide rails 13, of the first slide block 14;

one end of the elongated plate 5 is connected with the electric pneumatic cylinder 3, the side walls of the two sides of the elongated plate 5 are provided with limiting grooves 19, and the elongated plate 5 is further fixed by clamping the limiting grooves 19 with the limiting rods 15;

the top ends of the mounting frames 1 are all provided with connecting rods 4, and the top ends of the connecting rods 4 are provided with fixing plates 10;

the side wall of one side of the fixed plate 10 is provided with the guide wheel 7, and the interior of the guide wheel 7 is attached to the steel wire rope 6, so that the steel wire rope 6 can be guided by the guide wheel 7;

a second slide rail 17 is installed at the bottom end of the fixed plate 10, a second slide block 18 is arranged inside the second slide rail 17, and the second slide block 18 can slide inside the second slide rail 17 through the mutual matching of the second slide block 18 and the second slide rail 17;

the bottom end of the second sliding block 18 is provided with a limiting rod 15 matched with the limiting groove 19, and the limiting rod 15 is L-shaped, so that the limiting rod 15 can slide through the second sliding block 18, and the limiting rod 15 is conveniently clamped with the limiting groove 19;

a support rod 11 is installed at the top end of the fixing plate 10, support plates 16 are installed at two ends of the top end of the fixing plate 10, a motor 8 is installed at the top end of each support plate 16, the type of the motor 8 can be 57HS22, and a rotating shaft 9 is installed at the output end of the motor 8 through a coupler;

a reel 12 is sleeved on the outer wall of the rotating shaft 9, and a steel wire rope 6 connected with the lengthening plate 5 is arranged inside the reel 12; the wire rope 6 is wound by the reel 12, so that the wire rope 6 tightens the elongated plate 5.

The working principle is as follows: when the span-changing mechanism of the bridge erecting machine is used, when the span of the bridge erecting machine needs to be adjusted, the electric pneumatic cylinder 3 is started, the first slide rail 13 and the first slide block 14 are matched with each other, the electric pneumatic cylinder 3 drives the lengthened plates 5 to slide through the first slide block 14, so that two groups of lengthened plates 5 can move towards two ends, operation of an operator is facilitated, when the lengthened plates 5 move to a specified position, the motor 8 can be started, the motor 8 can drive the rotating shaft 9 and the reel 12 to rotate, the steel wire rope 6 is wound through the reel 12, the steel wire rope 6 tensions the lengthened plates 5, the lengthened plates 5 can be fixed conveniently, meanwhile, the second slide block 18 and the second slide rail 17 can be matched with each other, the limiting rod 15 can slide through the second slide block 18, the limiting rod 15 can be clamped with the limiting groove 19 conveniently, the lengthened plates 5 can be further fixed conveniently, avoid this bridging machine to bear the weight reduction when having adjusted the span, do above the utility model discloses a whole theory of operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a mechanism is striden in change of frame bridge crane, includes installing frame (1), electric pneumatic cylinder (3), motor (8) and backup pad (16), its characterized in that: a partition plate (2) is arranged in the middle of the inside of the mounting frame (1), the side walls at the two ends of the partition board (2) are provided with electric pneumatic cylinders (3), the side walls at the two ends in the mounting frame (1) are provided with first sliding rails (13), a first sliding block (14) is arranged inside the first sliding rail (13), one end of the first sliding block (14) far away from the first sliding rail (13) is provided with a lengthening plate (5), the top ends of the mounting frames (1) are provided with connecting rods (4), a fixing plate (10) is arranged at the top end of the connecting rod (4), a supporting rod (11) is arranged at the top end of the fixing plate (10), supporting plates (16) are arranged at two ends of the top end of the fixing plate (10), a motor (8) is arranged at the top end of each supporting plate (16), and the output end of the motor (8) is provided with a rotating shaft (9) through a coupling.

2. The span-changing mechanism of the bridge erecting machine as claimed in claim 1, wherein: one end of the elongated plate (5) is connected with the electric pneumatic cylinder (3), and the side walls of the two sides of the elongated plate (5) are provided with limit grooves (19).

3. The span-changing mechanism of the bridge erecting machine as claimed in claim 1, wherein: the outer wall of the rotating shaft (9) is sleeved with a winding wheel (12), and a steel wire rope (6) connected with the lengthening plate (5) is arranged inside the winding wheel (12).

4. The span-changing mechanism of the bridge erecting machine as claimed in claim 1, wherein: the lateral wall of fixed plate (10) one side is installed leading wheel (7), and the inside and the laminating of wire rope (6) mutually of leading wheel (7).

5. The span-changing mechanism of the bridge erecting machine as claimed in claim 1, wherein: and a second sliding rail (17) is installed at the bottom end of the fixing plate (10), and a second sliding block (18) is arranged inside the second sliding rail (17).

6. The span-changing mechanism of the bridge erecting machine as claimed in claim 5, wherein: the bottom end of the second sliding block (18) is provided with a limiting rod (15) matched with the limiting groove (19), and the limiting rod (15) is L-shaped.

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