CN218174460U - Gantry crane - Google Patents

Abstract

The utility model discloses a gantry crane, including the portal, the inverted-convex shape through-hole has been seted up at the portal middle part, portal both ends downside is equipped with the support, the support bottom is equipped with the cart, be equipped with the dolly on the portal, dolly lower part both sides are equipped with flexible arm, both sides flexible arm one end all is equipped with the bearing seat, bearing seat downside is equipped with the cable wire, the cable wire lower extreme is equipped with the loop wheel machine, the loop wheel machine includes control motor, worm, casing and wire winding worm wheel, the fixed couple that is equipped with in casing bottom, the utility model discloses a set up flexible arm, drive bearing seat horizontal slip, pull the cable wire of both sides and deviate from each other, form stable triangle-shaped structure, decompose into vertical and horizontal to the atress with the original atress of couple through the cable wire slope, increase horizontal restraint, improve stability and security when the loop wheel machine removes, through the auto-lock characteristic of wire winding worm wheel and worm, reduce the power requirement to control motor.

Description

Gantry crane

Technical Field

The utility model belongs to the technical direction of hoist, concretely relates to gantry crane.

Background

At present, the crane is mainly used for hanging large-volume objects, a large number of containers are arranged at a port and a wharf every day to wait for loading and unloading, and a large number of cranes are needed for operation. The traditional cranes mainly comprise tower cranes, gantry cranes, automobile cranes and floating cranes.

The portal crane has wide application, can carry various finished articles and bulk materials, and has the characteristics of large operation range, high site utilization rate, wide application range and the like. The hoisting accessory of the gantry crane who now adopts accomplishes through electric block and cable wire, and when the hoist hung large-scale object, can produce great inertia, the gantry crane hung the object and removed or when parking, the object can rock because of inertia production, and then causes the object to bind fixed pine and take off, among the prior art, drives many cable wires pulling through electric block and hangs the object, lacks the restraint of horizontal direction motion, hangs that transportation stability is relatively poor, has very big potential safety hazard. This phenomenon becomes an urgent problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to current device a gantry crane to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a gantry crane, includes the portal, the font through-hole of falling has been seted up at the portal middle part, portal both ends downside is equipped with the support, the support bottom is equipped with the cart, be equipped with the dolly on the portal, dolly lower part both sides are equipped with flexible arm, both sides flexible arm one end all is equipped with the bearing seat, bearing seat downside is equipped with the cable wire, the cable wire lower extreme is equipped with the loop wheel machine, the loop wheel machine includes control motor, worm, casing and wire winding worm wheel, the fixed couple that is equipped with in casing bottom.

The utility model discloses further explain, the font through-hole middle part of falling is equipped with the bearing slide rail, the bearing seat both sides are equipped with supplementary gyro wheel, the bearing seat passes through supplementary gyro wheel and bearing slide rail sliding connection, the dolly bottom is equipped with drive roller, be equipped with driving motor in the dolly, the dolly passes through drive roller and portal sliding connection.

The utility model discloses explain further, wire winding worm wheel one side axle center department is fixed and is equipped with the spool, the cable wire lower extreme is around locating on the spool, the wire winding worm wheel is equipped with two sets ofly, and sets up respectively in the worm both sides, wire winding worm wheel and worm meshing contact, it is connected to rotate between wire winding worm wheel and the casing, rotate between worm and the casing and be connected, control motor's output shaft and worm fixed connection.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

(1) The telescopic arm is arranged to drive the bearing seat to slide horizontally, the steel cables on two sides are pulled to deviate from each other to form a stable triangular structure, the original vertical stress of the hook is decomposed into vertical stress and horizontal stress through the inclination of the steel cables, the horizontal constraint is increased, and the stability and the safety of the crane during moving are improved;

(2) The utility model discloses a load that article brought is effectively born to the auto-lock characteristic of wire winding worm wheel and worm, reduces the power requirement to control motor.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the partial sectional structure of the front view of the present invention;

FIG. 3 is a schematic view of the structure of the cart of the present invention;

FIG. 4 is a schematic view of the structure of the crane of the present invention;

in the figure: 1. a gantry; 11. a load bearing slide rail; 2. a trolley; 21. a telescopic arm; 22. a load bearing seat; 23. an auxiliary roller; 3. a support; 4. a cart; 5. hoisting a machine; 51. controlling the motor; 52. a worm; 53. a housing; 54. hooking; 55. a wire-wound worm gear; 6. a steel cord.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. 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 gantry crane comprises a gantry 1, wherein supports 3 are fixed on the lower sides of two ends of the gantry 1, the supports 3 are distributed in a herringbone manner, a cart 4 is welded at the bottom end of each support 3, a trolley 2 is arranged on the gantry 1 in a sliding manner, telescopic arms 21 are fixed on two sides of the lower portion of the trolley 2, the telescopic arms 21 are electric hydraulic telescopic rods, a bearing seat 22 is fixed on one end of each telescopic arm 21 at two sides, a steel cable 6 is fixedly connected to the lower side of the bearing seat 22, a crane 5 is connected to the lower end of the steel cable 6, the telescopic arms 21 at two sides drive the bearing seats 22 to slide horizontally, the steel cables 6 at two sides are pulled to deviate from each other, a stable triangular structure is formed, the stability of the crane 5 during movement is improved, the excessive interference of inertia to object hanging is reduced, and the fixing reliability of the objects is prevented from being damaged;

the bottom of the trolley 2 is provided with a driving roller which is abutted against the upper surface of the portal 1, a driving motor is arranged in the trolley 2, the driving roller is controlled to rotate by the driving motor, the trolley 2 is connected with the portal 1 in a sliding manner through the driving roller, and the portal 1 is used for bearing the load brought by the trolley 2;

the middle part of the gantry 1 is provided with an inverted convex through hole, the middle part of the inverted convex through hole is provided with a bearing slide rail 11, two sides of a bearing seat 22 are provided with auxiliary rollers 23 matched with the bearing slide rail 11, the bearing seat 22 is connected with the bearing slide rail 11 in a sliding way through the auxiliary rollers 23, a plurality of groups of steel cables 6 which are parallel to each other can be arranged on the bearing seat 22 at one side, the bearing capacity and the lateral stability capacity are improved, the auxiliary rollers 23 ensure that the bearing seat 22 bears the load from the steel cables 6, and meanwhile, the sliding friction force generated when the trolley 2 moves is reduced;

the crane 5 comprises a control motor 51, a worm 52, a shell 53 and a winding worm wheel 55, wherein a winding shaft is fixedly arranged at the axis of one side of the winding worm wheel 55, the winding worm wheel 55 is in meshing contact with the worm 52, two groups of winding worm wheels 55 are arranged and are respectively arranged at two sides of the worm 52, the winding worm wheel 55 is rotatably connected with the shell 53 through a bearing, and the lower end of a steel cable 6 is wound on the winding shaft;

the control motor 51 is arranged on the upper side of the shell 53 and fixedly connected with the shell, the output shaft of the control motor 51 is fixedly connected with the worm 52, the worm 52 is rotatably connected with the shell 53 through a bearing, and the bottom of the shell 53 is fixedly provided with a hook 54.

The working principle is as follows:

when articles need to be hung, the cart 4 drives the equipment to move integrally to reach an appointed position, the control motor 51 in the crane 5 controls the worm 52 to rotate, then the worm wheel is controlled to rotate, the steel cable 6 is loosened through the winding worm wheel 55, the height of the hook 54 is reduced, articles are convenient to fix, after the articles are fixed, the operation can be reversed, the hook 54 is pulled up, obstacles can be conveniently crossed, and the cart 2 and the cart 4 are matched for hoisting.

In addition the flexible arm 21 in both sides drives bearing seat 22 level and slides, 6 deviate from each other in the cable wire of pulling both sides, 6 cable wire are because flexible arm 21's traction, it struts to be the triangle-shaped form, through stable triangle-shaped structure, the direction that restriction couple 54 rocked, by the irregular swing of original multi freedom, change into the rocking of single direction, when effectively alleviating article removal or parking, the inertial impact who brings, volume or the difference of quality according to the object, the flexible arm 21 of accessible changes 6 inclination angles in cable wire, through 6 slopes in cable wire with the original vertical atress of couple 54 decompose for vertical and level to the atress, increase the level to the restraint, and the stability of structure is improved, be convenient for stably transport article.

Meanwhile, due to the self-locking characteristic of the winding worm wheel 55 and the worm 52, the load brought by articles can be effectively borne, the power requirement on the control motor 51 is reduced, and the overall reliability and stability of the equipment are improved.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalent substitutions may be made to some of the features of the embodiments without departing from the spirit and scope of the invention.

Claims (6)

1. A gantry crane, comprising a gantry (1), characterized in that: the utility model discloses a crane, including portal (1), portal (1) and support (3), portal (1) both ends downside is equipped with support (3), support (3) bottom is equipped with cart (4), be equipped with on portal (1) dolly (2), dolly (2) lower part both sides are equipped with flexible arm (21), both sides flexible arm (21) one end all is equipped with bearing seat (22), bearing seat (22) downside is equipped with cable wire (6), cable wire (6) lower extreme is equipped with loop wheel machine (5), loop wheel machine (5) are including control motor (51), worm (52), casing (53) and wire winding worm wheel (55), casing (53) bottom is equipped with couple (54).

2. A gantry crane according to claim 1, wherein: the bearing seat is characterized in that a bearing slide rail (11) is arranged in the middle of the inverted-convex-shaped through hole, auxiliary rollers (23) are arranged on two sides of the bearing seat (22), and the bearing seat (22) is connected with the bearing slide rail (11) in a sliding mode through the auxiliary rollers (23).

3. A gantry crane according to claim 1, wherein: the trolley is characterized in that a driving roller is arranged at the bottom of the trolley (2), a driving motor is arranged in the trolley (2), and the trolley (2) is connected with the portal frame (1) in a sliding mode through the driving roller.

4. A gantry crane according to claim 1, characterized in that: and a winding shaft is arranged at the axis of one side of the winding worm wheel (55), and the lower end of the steel cable (6) is wound on the winding shaft.

5. A gantry crane according to claim 4, characterized in that: two groups of winding worm wheels (55) are arranged and are respectively arranged on two sides of the worm (52), and the winding worm wheels (55) are in meshed contact with the worm (52).

6. A gantry crane according to claim 5, characterized in that: the winding worm wheel (55) is rotatably connected with the shell (53), the worm (52) is rotatably connected with the shell (53), and an output shaft of the control motor (51) is fixedly connected with the worm (52).

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