CN220264995U

CN220264995U - Wind-proof device for portal crane

Info

Publication number: CN220264995U
Application number: CN202321772470.0U
Authority: CN
Inventors: 徐佳斌; 戴以浪; 汪海裕; 戴盈娜; 何朝刚
Original assignee: Ningbo Aotu Heavy Industries Co ltd
Current assignee: Ningbo Aotu Heavy Industries Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-29
Anticipated expiration: 2033-07-07

Abstract

The utility model provides a wind-proof device for a gantry crane, which comprises a fixed bracket connected to a beam at the bottom of the gantry crane, wherein a rail clamping device is detachably arranged on the fixed bracket and is used for clamping a rail to realize static anchoring or loosening the rail to realize unlocking; the fixed support is provided with a first mounting support, at least one side in the width direction of the track is further connected with an anchor bolt capable of vertically lifting and a driving mechanism for driving the anchor bolt to lift, when the driving trolley of the gantry crane drives the crane main body to move to a set position, the rail clamping device is used for forming an included angle track, and meanwhile, the driving mechanism is used for driving the anchor bolt to descend and be inserted into an anchor hole preset at a corresponding ground position, so that double positioning wind prevention of the crane main body is realized. The wind-proof device for the gantry crane is convenient to operate, firm in anchoring and good in wind-proof effect.

Description

Wind-proof device for portal crane

Technical Field

The utility model relates to the technical field of portal cranes, in particular to a wind-proof device for a portal crane.

Background

The portal crane is also called portal crane, is a deformation of bridge crane, and is mainly used for loading and unloading operations of outdoor goods yard, stock yard goods and bulk goods. The upper bridge frame (comprising main beam and end beam), support leg, lower beam and other parts of portal frame of portal crane can extend beyond the support leg to form cantilever. At present, the outdoor gantry crane drives the steel cable to lift through the driving device inside the lifting trolley, the object is driven by the hook to lift and transport, the steel cable and the hook are likely to swing greatly under the thrust action of strong wind in some areas with frequent wind damage in a non-working state, the goods are inconvenient to hook, and the operation efficiency is reduced, so that the outdoor gantry crane with the wind-proof device is required to be designed.

In the prior art, some manufacturers choose to directly use the rail clamping device as a windproof device, and clamp or loosen the rail through the rail clamping device to realize the static limit of the gantry crane main body or move after unlocking. The rail clamping device structure is generally realized by closing two limiting clamping blocks positioned on two sides of the width direction of the rail to be abutted against two side walls of the rail, the structure is characterized in that sliding friction force in the length direction of the channel rail is used for limiting, and when large wind force exists outdoors, particularly when the wind direction acts towards the rail direction, the risk of relative sliding easily occurs between the rail clamping device and the rail.

In another example, in CN218595959U, wind prevention is achieved through a special anchoring device, an anchoring seat is arranged on one side of a rail, the length of the anchoring seat is consistent with that of the rail, a plurality of positioning holes extending along the length direction of the anchoring seat are formed in the anchoring seat, a reversible supporting leg is arranged on a supporting leg of a crane, corresponding positioning bolts are arranged on the supporting leg in a penetrating mode, and anchoring limit of the crane is achieved through connection of the positioning bolts and the corresponding positioning holes in the anchoring seat. Although the anchoring device can also solve the wind-proof fixing function of the crane to a certain extent, each operation needs to screw the positioning bolt by a special spanner; when the anchoring device is not used, the supporting legs are required to be turned upwards and limited and clamped through the limiting bolts, so that the operation is inconvenient; and sometimes, due to the huge size of the portal crane, wind prevention is realized only by the anchoring device, and the structural strength is insufficient.

Disclosure of Invention

The utility model solves the problem of overcoming at least one defect in the prior art, and provides the wind-proof device for the gantry crane, which is convenient to operate, firm in anchoring and good in wind-proof effect.

In order to solve the problems, the utility model provides a wind-proof device for a gantry crane, which comprises a fixed bracket, a rail clamping device and an anchoring mechanism, wherein the fixed bracket is used for being connected to a cross beam at the bottom of the gantry crane, and the rail clamping device is detachably connected to the fixed bracket and is used for clamping a rail to realize static anchoring or loosening the rail to realize unlocking; the anchoring mechanism comprises a first mounting bracket, the first mounting bracket is connected with one side of the fixing bracket in the width direction of the track, an anchoring bolt capable of vertically lifting and a driving mechanism for driving the anchoring bolt to lift are connected to the first mounting bracket, when a driving trolley of the gantry crane drives a crane main body to move to a set position, the rail clamping device is used for forming an included angle track, and meanwhile, the driving mechanism is used for driving the anchoring bolt to descend and be inserted into an anchoring hole preset at a corresponding ground position, so that double positioning wind prevention of the crane main body is realized.

Compared with the prior art, the wind-proof device for the portal crane has the following advantages:

the wind-proof device for the gantry crane effectively combines the rail clamping device and the bolt anchoring structure, the rail clamping device can realize stable limit in the width direction of the rail, and the anchoring bolt can realize further limit in the length direction of the rail; and the lifting of the anchor bolt is operated and operated through a corresponding driving mechanism, the structure is simple, the operation is convenient, when the driving trolley of the gantry crane drives the crane main body to move to a set position, the rail clamping device is used for an included angle rail, and meanwhile, the driving mechanism is used for driving the anchor bolt to descend and be inserted into an anchor hole preset at a corresponding position on the ground, so that the double positioning wind prevention of the crane main body is realized.

As an improvement, a rectangular mounting sleeve is detachably connected to the outer wall of one side, far away from the fixed support, of the first mounting support, and the anchor bolt is vertically and slidably accommodated in the mounting sleeve; the driving mechanism comprises a pull rod extending along the length direction of the track, one end of the pull rod is hinged to the first mounting bracket, and the other end of the pull rod penetrates through the mounting sleeve in the horizontal direction and can vertically move; the part of the pull rod, which is positioned in the mounting sleeve, is provided with a kidney-shaped hole extending along the length direction of the pull rod, the upper end of the anchor bolt is in sliding fit in the kidney-shaped hole through a pin shaft, and the anchor bolt can be driven to vertically lift by pulling the handle of one end of the pull rod, which penetrates through the mounting sleeve, up and down. In the improved structure, the installation and the accommodation of the anchor bolt are realized by arranging the installation sleeve on the fixed support, the corresponding pull rod is penetrated on the installation sleeve, and the lifting and the descending of the anchor bolt can be realized by manually pulling the pull rod up and down.

The improved structure is characterized in that a positioning plate is connected to the outer side wall of the mounting sleeve corresponding to the handle, the positioning plate is arranged in parallel with the pull rod, two first pin holes vertically arranged are formed in the positioning plate, a second pin hole is formed in the pull rod, and a positioning bolt is hung on the positioning plate; when the pull rod moves upwards to the position where the second pin hole corresponds to the first pin hole above the positioning plate, the lower end of the anchoring bolt is separated from the anchoring hole, and when the pull rod moves downwards to the position where the second pin hole corresponds to the first pin hole below the positioning plate, the lower end of the anchoring bolt is inserted and assembled into the anchoring hole, and the positioning bolt is used for being inserted and installed in the second pin hole and the corresponding first pin hole and used for limiting the pull rod.

And the positioning plate is provided with a first positioning block and a second positioning block which are respectively used for limiting the upward or downward movement of the pull rod to the set position. In the improved structure, the limit of the upper and lower movable limit positions of the pull rod is realized through the two positioning blocks, so that the stable switching of the anchor bolt at the two limit positions is ensured.

Still further, be provided with at least one horizontal plate on the inner wall of installation sleeve, the locating through-hole has been seted up at the middle part of horizontal plate, the lower extreme sliding fit of anchor bolt is in the locating through-hole. In the machine changing structure, the horizontal plate with the positioning through holes is arranged in the mounting sleeve, so that the stability of the anchor bolt upgrading activity is effectively improved.

The rail clamping device is characterized in that a second mounting bracket is connected to one side, located in the length direction of the rail, of the fixing bracket, a horizontal bracket is detachably connected to the second mounting bracket, and the rail clamping device is mounted on the horizontal bracket; and at least two guide rollers which are arranged at intervals along the length direction of the rail and are in rolling fit with the upper end face of the rail are also arranged on the horizontal bracket.

Drawings

FIG. 1 is a partial view showing the state of use of the wind-guard for a gantry crane according to the present utility model;

FIG. 2 is a schematic view showing a structure of a wind-proof device for a gantry crane according to the present utility model;

FIG. 3 is another angular partial view of the wind guard for a gantry crane of the present utility model;

FIG. 4 is a cross-sectional view of the anchor bolt and mounting sleeve connection of the present utility model in a non-use condition;

FIG. 5 is a cross-sectional view of the anchor bolt and mounting sleeve connection of the present utility model in use;

FIG. 6 is a schematic structural view of a fixing bracket according to the present utility model;

fig. 7 is a left side view of the fixing bracket of fig. 6.

Reference numerals illustrate:

1. a cross beam; 2. a fixed bracket; 3. a rail clamp; 4. a first mounting bracket; 4.1, vertical rib plates; 4.2, connecting the plates; 4.3, a horizontal mounting plate; 5. an anchor bolt; 6. installing a sleeve; 7. a pull rod; 8. waist-shaped holes; 9. a pin shaft; 10. a handle; 11. a positioning plate; 12. a first pin hole; 13. a second pin hole; 14. positioning a bolt; 15. a first positioning block; 16. a second positioning block; 17. a horizontal plate; 18. positioning the through hole; 19. a second mounting bracket; 20. a horizontal bracket; 21. and a guide roller.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "bottom", "outer side wall", "upper", "lower", "middle", etc., are directions or positional relationships based on those shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 6, the utility model provides a wind-proof device for a gantry crane, which comprises a fixed bracket 2, a rail clamping device 3 and an anchoring mechanism, wherein the fixed bracket 2 is used for being connected to a bottom cross beam 1 of the gantry crane, the rail clamping device 3 is detachably connected to the fixed bracket 2, and is used for clamping a rail to realize static anchoring or loosening the rail to realize unlocking; the anchoring mechanism comprises a first mounting bracket 4, and the first mounting bracket 4 is connected to the fixed bracket 2 and positioned at one side of the track in the width direction; the first mounting bracket 4 is connected with an anchor bolt 5 which can be lifted vertically and a driving mechanism for driving the anchor bolt 5 to lift, when the driving trolley of the gantry crane drives the crane main body to move to a set position, the rail clamping device 3 is used for an included angle rail, and meanwhile, the driving mechanism is used for driving the anchor bolt 5 to descend and be inserted into an anchor hole preset at a corresponding ground position, so that double positioning wind prevention of the crane main body is realized. The anchor in this embodiment directly adopts the existing structure, and the structure disclosed in CN21475146538U can be referred to specifically, and will not be described in detail here.

In this embodiment, as shown in fig. 6 and 7, the first mounting bracket 4 includes two vertical rib plates 4.1 connected to the outer wall of the fixing bracket 2, and the two vertical rib plates 4.1 are connected together by two connecting plates 4.2, two sides of the two vertical rib plates 4.1 are respectively provided with a horizontal mounting plate 4.3, two side walls of the mounting sleeve 6 are provided with mounting flanges, and the two mounting flanges are respectively detachably connected to the two horizontal mounting plates 4.3.

In the structure, the outer wall of the side, far away from the fixed bracket 2, of the first mounting bracket 4 is detachably connected with the rectangular mounting sleeve 6, and the anchor bolt 5 is vertically and slidably accommodated in the mounting sleeve 6; the driving mechanism comprises a pull rod 7 extending along the length direction of the track, one end of the pull rod 7 is hinged to the first mounting bracket 4, and the other end of the pull rod 7 penetrates through the mounting sleeve 6 along the horizontal direction and can vertically move up and down; the part of the pull rod 7 in the installation sleeve 6 is provided with a kidney-shaped hole 8 extending along the length direction of the pull rod, the upper end of the anchor bolt 5 is in sliding fit in the kidney-shaped hole 8 through a pin shaft 9, and specifically, the anchor bolt 5 can be driven to vertically lift by pulling the handle 10 of the pull rod 7 penetrating through one end of the installation sleeve 6 up and down.

More specifically, in order to enable the pull rod 7 to move up and down, corresponding avoiding grooves are formed in two side plates of the mounting sleeve 6 along the length direction of the guide rail, and the pull rod 7 is movably matched in the corresponding avoiding grooves. The mounting sleeve 6 is provided with a hinging seat, two ends of the pull rod 7 respectively penetrate through two sides of the mounting sleeve 6, one end of the pull rod is hinged with the hinging seat, and the other end of the pull rod 7 is used for forming the handle 10.

The outer side wall of the mounting sleeve 6 corresponding to the handle 10 is connected with a positioning plate 11, the positioning plate 11 is parallel to and close to the pull rod 7, two first pin holes 12 vertically arranged are formed in the positioning plate 11, a second pin hole 13 is formed in the pull rod, and a positioning bolt 14 is hung on the positioning plate 11 through a rope; when the pull rod 7 moves upwards to the position where the second pin hole 13 corresponds to the first pin hole 12 above the positioning plate 11, the lower end of the anchor bolt 5 is separated from the anchor hole, when the pull rod 7 moves downwards to the position where the second pin hole 13 corresponds to the first pin hole 12 below the positioning plate 11, the lower end of the anchor bolt 5 is inserted and combined into the anchor hole, and when at two corresponding positions, the positioning bolt 14 is used for being inserted into the second pin hole 13 and the corresponding first pin hole 12 and used for limiting the pull rod 7 and the positioning plate 11.

In the above-described structure, as shown in fig. 4 and 5, the positioning plate 11 is provided with a first positioning block 15 and a second positioning block 16 for limiting the upward or downward movement of the tie rod 7 to the set position.

In addition, at least one horizontal plate 17 is arranged on the inner wall of the mounting sleeve 6, a positioning through hole 18 is formed in the middle of the horizontal plate 17, and the lower end of the anchor bolt 5 is in sliding fit in the positioning through hole 18. In this embodiment, two horizontal plates 17 are disposed in the inner cavity of the installation sleeve 6, one horizontal plate 17 is flush with the lower end surface of the installation sleeve 6, and corresponding positioning through holes 18 are formed in the middle of the two horizontal plates 17, so as to ensure lifting stability of the anchor bolt 5.

In the embodiment, a second mounting bracket 19 is connected to one side of the fixed bracket 2 in the track length direction, a horizontal bracket 20 is detachably connected to the second mounting bracket 19, and the rail clamping device 3 is mounted on the horizontal bracket 20; the horizontal bracket 20 is also provided with at least two guide rollers 21 which are arranged at intervals along the length direction of the rail and are in rolling fit with the upper end surface of the rail.

Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.

Claims

1. A wind-proof device for a gantry crane, characterized in that: the rail clamping device comprises a fixed support (2), a rail clamping device (3) and an anchoring mechanism, wherein the fixed support (2) is used for being connected to a cross beam (1) at the bottom of a portal crane, and the rail clamping device (3) is detachably connected to the fixed support (2) and is used for clamping a rail to realize static anchoring or loosening the rail to realize unlocking; the anchoring mechanism comprises a first mounting bracket (4), the first mounting bracket (4) is connected with the fixing bracket (2) and is positioned at one side of the width direction of the rail, an anchoring bolt (5) capable of vertically lifting and a driving mechanism for driving the anchoring bolt (5) to lift are connected to the first mounting bracket (4), when a driving trolley of the gantry crane drives a crane main body to move to a set position, the rail clamping device (3) is used for clamping the rail, and meanwhile, the driving mechanism is used for driving the anchoring bolt (5) to descend and be inserted into an anchoring hole preset at the corresponding position of the ground, so that double positioning wind prevention of the crane main body is realized.

2. The wind-proof device for gantry crane according to claim 1, wherein: the outer wall of one side, far away from the fixed support (2), of the first mounting support (4) is detachably connected with a rectangular mounting sleeve (6), and the anchor bolt (5) is vertically and slidably accommodated in the mounting sleeve (6); the driving mechanism comprises a pull rod (7) extending along the length direction of the track, one end of the pull rod (7) is hinged to the first mounting bracket (4), and the other end of the pull rod (7) penetrates through the mounting sleeve (6) along the horizontal direction and can vertically move; the part of the pull rod (7) located in the mounting sleeve (6) is provided with a kidney-shaped hole (8) extending along the length direction of the pull rod, the upper end of the anchoring bolt (5) is in sliding fit in the kidney-shaped hole (8) through a pin shaft (9), and the anchoring bolt (5) can be driven to vertically lift by pulling the handle (10) penetrating out of one end of the mounting sleeve (6) through the pull rod (7) up and down.

3. The wind-proof device for gantry crane according to claim 2, wherein: the mounting sleeve (6) is connected with a positioning plate (11) on the outer side wall corresponding to the handle (10), the positioning plate (11) is arranged in parallel with the pull rod (7), two first pin holes (12) which are vertically arranged are formed in the positioning plate (11), a second pin hole (13) is formed in the pull rod (7), and a positioning bolt (14) is hung on the positioning plate (11); when the pull rod (7) moves upwards to the position, corresponding to the first pin hole (12) above the locating plate (11), of the second pin hole (13), the lower end of the anchoring bolt (5) is separated from the anchoring hole, when the pull rod (7) moves downwards to the position, corresponding to the first pin hole (12) below the locating plate (11), of the second pin hole (13), the lower end of the anchoring bolt (5) is inserted and assembled into the anchoring hole, and the locating bolt (14) is used for being inserted and assembled in the second pin hole (13) and the corresponding first pin hole (12) and used for limiting the pull rod (7).

4. A wind-guard for a gantry crane according to claim 3, wherein: the positioning plate (11) is provided with a first positioning block (15) and a second positioning block (16) which are respectively used for limiting the upward or downward movement of the pull rod (7) to a set position.

5. The wind-proof device for gantry crane according to claim 2, wherein: the inner wall of the mounting sleeve (6) is provided with at least one horizontal plate (17), the middle part of the horizontal plate (17) is provided with a positioning through hole (18), and the lower end of the anchoring bolt (5) is in sliding fit in the positioning through hole (18).

6. The wind-proof device for gantry crane according to claim 1, wherein: a second mounting bracket (19) is connected to one side, located in the length direction of the rail, of the fixed bracket (2), a horizontal bracket (20) is detachably connected to the second mounting bracket (19), and the rail clamping device (3) is mounted on the horizontal bracket (20); at least two guide rollers (21) which are arranged at intervals along the length direction of the rail and are in rolling fit with the upper end face of the rail are also arranged on the horizontal bracket (20).