Correcting mechanism of portal crane

Abstract

The utility model discloses a portal crane deviation rectifying mechanism which comprises a lifting cross beam, a winding assembly, a guide mechanism, a lifting rail car, a deviation rectifying winch, a deviation rectifying guide mechanism, supporting plates, a mounting plate, a baffle and a partition plate, the supporting plates are arranged on the two sides of the lower end of the lifting cross beam, and communicating holes are formed in the sides, close to each other, of the supporting plates; a mounting plate is arranged on the rear side of the upper end of the supporting plate, a winding assembly is arranged on the upper side of the mounting plate, a guide mechanism is arranged between the winding assembly and the mounting plate, lifting rail cars are arranged on the supporting plate, deviation rectifying winches are arranged on the sides, close to each other, of the lifting rail cars, and deviation rectifying guide mechanisms are arranged on the lifting rail cars. Compared with the prior art, the deviation rectifying device has the advantages that the deviation rectifying precision of goods is higher, and the deviation rectifying device is more convenient to operate and control; and the stability of the hoisted goods can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of crane deviation correction, in particular to a gantry crane deviation correction mechanism. Background Art

[0002] A gantry crane is a variation of a bridge crane, also called a gantry crane, and is mainly used for loading and unloading operations in outdoor cargo yards, material yards, and bulk cargo. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility. They are widely used in port cargo yards. Its metal structure is like a door-shaped frame, with two legs installed under the load-bearing main beam, which can walk directly on the ground track. Both ends of the main beam can have outward cantilever beams. When a gantry crane lifts heavy objects and moves, it often deflects or swings, which is not conducive to the stability of the lifted goods and poses a threat to the safety of the operation. It is necessary to use a correction mechanism to correct the lifted goods.

[0003] A correction mechanism for a gantry crane described in announcement number CN218491268U includes two main beams, fixed legs are provided at both ends of the two main beams, a walking trolley is provided above the two main beams, a pulley block is connected to the bottom of the walking trolley through cables, a hook is provided under the pulley block, a cross beam is provided in the middle part of both sides of the two main beams, and correction devices are respectively provided below the two ends of the two cross beams. The correction mechanism for the gantry crane can limit the hook by a winding roller to prevent deflection. The correction mechanism for the gantry crane is easy to replace and disassemble, and the two fixed hooks can freely pull and limit the hook. At the same time, the two fixed hooks are easy to remove. The two correction devices can be pulled out of the T-slot by pulling the two spring pins respectively, which is convenient for inspection or replacement of the correction device.

[0004] Although the above-mentioned correction mechanism solves certain problems, it still has the following disadvantages:

[0005] (1) The correction mechanism corrects the deviation of the lifted cargo by pulling it up through the winches on both sides. However, when correcting the deviation of the cargo, the inclination of the cable pulling the hook varies with the movement of the cargo, and the correction accuracy of the cargo is not high enough.

[0006] (2) The cables used by the winches on both sides to correct the deviation of the cargo are tilted. As the cargo moves, the tilt angles of the cables on both sides keep changing, making it difficult to control the retraction and extension of the winches. Insufficient accuracy can easily cause the suspended cargo to shake significantly. Utility Model Content

[0007] The utility model aims to provide a deviation correcting mechanism for a gantry crane.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A gantry crane deviation correction mechanism, comprising:

[0010] A lifting beam, a lifting trolley is arranged on the lifting beam, the lifting trolley is connected with a hook through a lifting cable, support plates are fixedly connected to both sides of the lower end of the lifting beam, a mounting plate is fixedly connected to the upper end of the support plate at the rear side of the lifting beam, baffles are fixedly connected to the front and rear middle parts of the upper end of the mounting plate, a partition is arranged between the baffles, threading holes are opened on both sides of the upper end of the mounting plate, and a connecting hole is opened on the side of the support plate close to each other;

[0011] A winding assembly, the winding assembly is arranged between the baffle and the partition, the winding assembly comprises a first cable roller, a second cable roller, a first connecting cable and a second connecting cable, the first cable roller is arranged on the front side of the partition, the second cable roller is arranged on the rear side of the partition, the first connecting cable is wound on the first cable roller, the second connecting cable is wound on the second cable roller, and the spiral directions of the first connecting cable and the second connecting cable are opposite;

[0012] A guide mechanism, wherein the guide mechanism is arranged between the mounting plate and the winding assembly;

[0013] A lifting rail vehicle, wherein the lifting rail vehicle is arranged on a support plate through a connecting hole, and both sides of the support plate are fixedly connected to a travel rail used in conjunction with the lifting rail vehicle at the front side of the connecting hole outside, and the lifting rail vehicles are fixedly connected to a connecting block on one side close to each other, and the other side of the connecting block connected to the lifting rail vehicle is fixedly connected to a pad, and the front side of the pad is fixedly connected to a mounting side plate;

[0014] The deflection-correcting winches are respectively fixedly connected to the sides of the pads close to each other, and the deflection-correcting winches are each wound with a deflection-correcting cable, and the other end of the deflection-correcting cable connected to the deflection-correcting winch is respectively fixedly connected to the two sides of the hook;

[0015] The deviation correction guide mechanism is arranged between the deviation correction winch and the mounting side plate.

[0016] Furthermore, the outer front side of the first cable roller is rotatably connected to the inner front side of the baffle, the outer rear side of the first cable roller is rotatably connected to the front side of the partition, the outer rear side of the second cable roller is rotatably connected to the inner rear side of the baffle, and the outer front side of the second cable roller is rotatably connected to the rear side of the partition.

[0017] Furthermore, the free end of the first connecting cable extends from the lower side of the first cable roller to one side of the mounting plate, the free end of the second connecting cable extends from the upper side of the second cable roller to the other side of the mounting plate, the rotating shaft on the rear side of the first cable roller is fixedly connected to the rotating shaft on the front side of the second cable roller, and the outer rear side of the baffle is fixedly connected to a lifting servo motor used in conjunction with the second cable roller.

[0018] Furthermore, the guiding mechanism comprises:

[0019] Lead posts, the lead posts are respectively fixedly connected to both sides of the upper end of the mounting plate;

[0020] The first wire roller is arranged on both sides of the upper end of the mounting plate, the first wire roller is located between the lead column and the threading hole, and the wire groove of the first wire roller is tangent to the axial extension lines inside the lead column and the threading hole respectively.

[0021] Furthermore, the free ends of the first connecting cable and the second connecting cable respectively pass through the interior of the lead column and the threading hole and extend to the bottom of the mounting plate. The first connecting cable and the second connecting cable are both overlapped on the upper side of the first wire roller, and the upper sides of the connecting blocks on both sides are fixedly connected to the free ends of the first connecting cable and the second connecting cable respectively.

[0022] Furthermore, the other end of the first connecting cable connection block is fixedly connected to the first cable roller, and the other end of the second connecting cable connection block is fixedly connected to the second cable roller.

[0023] Furthermore, the deviation correction and guiding mechanism comprises:

[0024] A first alignment ring block, wherein the first alignment ring block is fixedly connected to the rear end of the side of the mounting side plate close to each other, and the other end of the deviation correction cable connected to the deviation correction winch passes through the first alignment ring block;

[0025] A second wire roller, the second wire roller is arranged on the side where the mounting side plates are close to each other, the second wire roller is located in front of the first wire fixing ring block, and the deviation correction cable is wound in a wire groove on the side where the second wire roller is far away from each other;

[0026] A guide post, the guide post being fixedly connected to the front end of the side of the mounting side plate close to each other, the guide post being located in front of the second wire roller;

[0027] The second alignment ring block is fixedly connected to one end of the guide column close to each other, and the deviation correction cable passes through the inside of the second alignment ring block.

[0028] Furthermore, the wire groove of the second wire roller is tangent to the axial extension lines inside the first wire alignment ring block and the second wire alignment ring block respectively.

[0029] The utility model provides a gantry crane deviation correction mechanism, which has the following beneficial effects:

[0030] (1) The lifting rail car is connected by two cables and the cable rollers are rotated to perform simultaneous lifting and lowering operations, so that the correcting cable for correcting the hook can always correct the hook in a horizontal direction, and the accuracy of correcting the cargo is higher.

[0031] (2) The hook is corrected in the horizontal direction by two correcting winches that rise and fall together with the hook. The pulling and releasing of the cables on both sides can be easily synchronized. By pulling the cables on both sides at the same time, the stability of the hoisted cargo can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0033] Figure 1 The utility model is a three-dimensional correction mechanism of a gantry crane Figure 1 .

[0034] Figure 2 The utility model is a three-dimensional correction mechanism of a gantry crane Figure 2 .

[0035] Figure 3 The utility model is a three-dimensional correction mechanism of a gantry crane Figure 3 .

[0036] Figure 4 It is a partial structural stereogram of a deviation-correcting mechanism of a gantry crane of the utility model.

[0037] Figure 5 It is a partial structural enlarged stereoscopic diagram of a deviation-correcting mechanism of a gantry crane of the utility model.

[0038] Indications in the figure: 1. lifting beam; 2. winding assembly; 201. first cable reel; 202. second cable reel; 203. first connecting cable; 204. second connecting cable; 3. guiding mechanism; 301. lead column; 302. first conductor roller; 4. lifting rail car; 5. deviation correction winch; 6. deviation correction guiding mechanism; 601. first fixed line ring block; 602. second conductor roller; 603. guide column; 604. second fixed line ring block; 7. lifting trolley; 8. hook; 9. support plate; 10. mounting plate; 11. baffle; 12. partition; 13. threading hole; 14. connecting hole; 15. walking track; 16. connecting block; 17. pad; 18. mounting side plate; 19. deviation correction cable; 20. lifting servo motor. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0041] like Figures 1 to 5 As shown, this embodiment proposes a deviation correction mechanism for a gantry crane, including a lifting beam 1, a winding assembly 2, a guide mechanism 3, a lifting rail car 4, a deviation correction winch 5, a deviation correction guide mechanism 6, a lifting trolley 7, a hook 8, a support plate 9, a mounting plate 10, a baffle 11 and a partition 12 arranged between the baffles 11.

[0042] Among them, a slide groove is provided on the upper side of the lifting beam 1, and a lifting trolley 7 is arranged inside the slide groove. The lower end of the lifting trolley 7 passes through the inside of the lifting beam 1 to the lower side of the outside of the lifting beam 1 and is fixedly connected to a lifting winch. The winch is connected to a hook 8 through a lifting cable. Support plates 9 are fixedly connected on both sides of the lower end of the lifting beam 1. The upper rear side of the support plate 9 and the rear side of the lifting beam 1 are fixedly connected to a mounting plate 10. Wire threading holes 13 are provided on both sides of the upper end of the mounting plate 10. A baffle plate 11 is fixedly connected to the front and rear of the middle of the upper end of the outer side of the mounting plate 10, and a partition is provided in the middle of the baffle plate 11. Plate 12, the lower end of the partition 12 and the upper side of the mounting plate 10 are fixedly connected together, and a first cable roller 201 and a second cable roller 202 are rotatably connected in front and behind the partition 12 respectively, the external front side of the first cable roller 201 is rotatably connected to the front side inside the baffle 11, the external rear side of the second cable roller 202 is rotatably connected to the rear side inside the baffle 11, and the rotating shafts of the two cable rollers are fixedly connected together so that the two cable rollers can rotate synchronously and in the same direction, and a lifting servo motor 20 for driving the cable rollers to rotate and controlling the rotation direction is fixedly connected to the rear side outside the baffle 11.

[0043] A first connecting cable 203 is wound around the first cable reel 201, and a second connecting cable 204 is wound around the second cable reel 202. The two cables are wound and unwound by the two cable reels. A lead post 301 is fixedly connected to both sides of the upper end of the mounting plate 10. First wire rollers 302 are arranged on both sides of the upper end of the mounting plate 10. The first wire rollers 302 are both between the threading holes 13 and the lead post 301. The first wire rollers 302 are vertically mounted on the mounting plate 10 through the base and can be rotated. The other ends of the two connecting cables connecting the two cable reels first pass through the inside of the lead post 301, and then are sleeved on the first wire rollers 3 02, and then pass through the inside of the wire groove on the upper side of the mounting plate 10 from the inside of the wire threading hole 13 to the outer lower side of the mounting plate 10, the first connecting cable 203 extends from the lower end of the rear side of the first cable reel 201, and the second connecting cable 204 extends from the upper end of the front side of the second cable reel 202. The two connecting cables are wound on the two cable reels in opposite spiral directions. Through the rotation of the two cable reels, the free ends of the two connecting cables can be simultaneously retracted upward or simultaneously released downward. The wire groove of the first wire roller 302 is tangent to the axial extension line of the internal circular hole of the lead column 301 and the internal circular hole of the wire threading hole 13, so that the two connecting cables can be vertically extended to the outer lower side of the mounting plate 10.

[0044] A connecting hole 14 is provided on the side where the support plates 9 are close to each other, and a lifting rail car 4 is arranged on the support plate 9. The lifting rail car 4 is two carts with rollers connected together by a connecting block passing through the inside of the connecting hole 14. The two carts are respectively stuck on both sides of the support plate 9, and walking rails 15 are fixedly connected on both sides of the support plate 9 and the front and rear of the outside of the connecting hole 14. Used in conjunction with the rollers of the carts, the lifting rail cars 4 on both sides can only move up and down. A connecting block 16 is fixedly connected to the side where the lifting rail cars 4 are close to each other, and the other end of the connecting block 16 connected to the lifting rail car 4 is fixedly connected to a pad 17, and the front side of the pad 17 is fixedly connected to the mounting side plate 18. The sides of the plates 17 that are close to each other are fixedly connected with a correcting winch 5, and the two correcting winches 5 are wound with correcting cables 19. The upper sides of the two correcting winches 5 are used to control the rotation of motors, which rotate synchronously. When the correcting winch 5 on one side is paying out the correcting cable 19, the correcting winch 5 on the other side will reel in the correcting cable 19 wound thereon. The other ends of the correcting cables 19 connected to the correcting winches 5 are fixedly connected to the two sides of the hook 8 respectively, so as to correct the deviation of the goods hoisted by the hook 8. The correcting winch 5, the lifting winch under the lifting trolley, and the lifting servo motor 20 that controls the rotation of the two cable winding rollers are synchronously driven by the central controller.

[0045] In order to ensure that the correction of the hook 8 by the correction cable 19 is horizontal, a first line fixing ring block 601 is fixedly connected to the rear end of the side where the side plates 18 are installed close to each other, and a second wire roller 602 is arranged on the front side of the first line fixing ring block 601. The second wire roller 602 is installed on the side where the side plates 18 are installed close to each other through a base. The second wire roller 602 is horizontally connected to the side plates 18, and the side plates 18 can rotate. A guide column 603 is fixedly connected to the front end of the side where the side plates 18 are installed close to each other. The guide column 603 is fixedly connected to the front side of the second wire roller 602, and the end of the guide column 603 close to each other is fixedly connected. A second wiring loop block 604 and a wire groove of a second wire roller 602 are respectively tangent to the inner circular hole of the first wiring loop block 601 and the axial extension line of the inner circular hole of the second wiring loop block 604, and the winding guide of the correction cable 19 wound on the correction winch 5 is fixedly connected to the two sides of the hook 8, so that the correction cable 19 pulling the hook 8 can pull the hook 8 in the horizontal direction to correct the deviation, thereby ensuring the accuracy of the correction of the hook 8. By rotating the lifting servo motor 20, the two cable winding rollers are controlled to rotate, and the lifting rail car 4 is lifted and lowered with the lifting and lowering of the hook 8, so that the correction of the hook 8 by the correction cable 19 is always in a horizontal state.

[0046] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane deviation correction mechanism, characterized in that: include: A lifting beam (1), wherein a lifting trolley (7) is arranged on the lifting beam (1), and the lifting trolley (7) is connected to a lifting hook (8) via a lifting cable, and both sides of the lower end of the lifting beam (1) are fixedly connected to support plates (9), and the upper end of the support plate (9) is fixedly connected to a mounting plate (10) at the rear side of the lifting beam (1), and the front and rear middle parts of the upper end of the mounting plate (10) are fixedly connected to baffles (11), and a partition plate (12) is arranged between the baffles (11), and both sides of the upper end of the mounting plate (10) are provided with threading holes (13), and the sides of the support plates (9) close to each other are provided with connecting holes (14); A winding assembly (2), the winding assembly (2) being arranged between the baffle (11) and the partition (12), the winding assembly (2) comprising a first cable reel (201), a second cable reel (202), a first connecting cable (203) and a second connecting cable (204), the first cable reel (201) being arranged at the front side of the partition (12), the second cable reel (202) being arranged at the rear side of the partition (12), the first connecting cable (203) being wound around the first cable reel (201), the second connecting cable (204) being wound around the second cable reel (202), the spiral directions of the winding of the first connecting cable (203) and the second connecting cable (204) being opposite; A guide mechanism (3), wherein the guide mechanism (3) is arranged between the mounting plate (10) and the winding assembly (2); A lifting rail vehicle (4), the lifting rail vehicle (4) being arranged on a support plate (9) through a connecting hole (14), both sides of the support plate (9) being fixedly connected to a running rail (15) used in conjunction with the lifting rail vehicle (4) at the front side of the connecting hole (14), the lifting rail vehicles (4) being fixedly connected to a connecting block (16) on one side close to each other, the connecting block (16) being fixedly connected to a pad (17) on the other side connected to the lifting rail vehicle (4), and the pad (17) being fixedly connected to a mounting side plate (18) on the front side; A deflection correcting winch (5), the deflection correcting winch (5) being fixedly connected to the sides of the pad (17) close to each other, a deflection correcting cable (19) being wound around the deflection correcting winch (5), and the other end of the deflection correcting cable (19) connected to the deflection correcting winch (5) being fixedly connected to the two sides of the hook (8); A deviation correction guide mechanism (6), wherein the deviation correction guide mechanism (6) is arranged between the deviation correction hoist (5) and the mounting side plate (18).

2. A gantry crane deviation correction mechanism according to claim 1, characterized in that: The outer front side of the first cable roller (201) is rotatably connected to the inner front side of the baffle (11), the outer rear side of the first cable roller (201) is rotatably connected to the front side of the partition (12), the outer rear side of the second cable roller (202) is rotatably connected to the inner rear side of the baffle (11), and the outer front side of the second cable roller (202) is rotatably connected to the rear side of the partition (12).

3. The gantry crane deviation correction mechanism according to claim 1, characterized in that: The free end of the first connecting cable (203) extends from the lower side of the first cable roller (201) to one side of the mounting plate (10), and the free end of the second connecting cable (204) extends from the upper side of the second cable roller (202) to the other side of the mounting plate (10). The rotating shaft at the rear side of the first cable roller (201) is fixedly connected to the rotating shaft at the front side of the second cable roller (202), and a lifting servo motor (20) used in conjunction with the second cable roller (202) is fixedly connected to the rear side of the outer portion of the baffle (11).

4. A gantry crane deviation correction mechanism according to claim 1, characterized in that: The guiding mechanism (3) comprises: Lead posts (301), the lead posts (301) being fixedly connected to both sides of the upper end of the mounting plate (10); A first wire roller (302) is arranged on both sides of the upper end of the mounting plate (10), the first wire roller (302) is located between the lead post (301) and the threading hole (13), and the wire groove of the first wire roller (302) is tangent to the axial extension lines inside the lead post (301) and inside the threading hole (13).

5. A gantry crane deviation correction mechanism according to claim 4, characterized in that: The free ends of the first connecting cable (203) and the second connecting cable (204) respectively pass through the interior of the lead column (301) and the interior of the threading hole (13) to extend to the bottom of the mounting plate (10); the first connecting cable (203) and the second connecting cable (204) are both overlapped on the upper side of the first wire roller (302); and the upper sides of the connecting blocks (16) on both sides are fixedly connected to the free ends of the first connecting cable (203) and the second connecting cable (204) respectively.

6. The gantry crane deviation correction mechanism according to claim 1, characterized in that: The other end of the first connecting cable (203) connected to the connecting block (16) is fixedly connected to the first cable reel (201), and the other end of the second connecting cable (204) connected to the connecting block (16) is fixedly connected to the second cable reel (202).

7. The gantry crane deviation correction mechanism according to claim 1, characterized in that: The deviation correction guide mechanism (6) comprises: a first alignment ring block (601), the first alignment ring block (601) being fixedly connected to the rear end of the mounting side plate (18) on one side close to each other, the other end of the deviation correction cable (19) being connected to the deviation correction winch (5) passing through the interior of the first alignment ring block (601); a second wire roller (602), the second wire roller (602) being arranged on a side of the mounting side plate (18) close to each other, the second wire roller (602) being located in front of the first wire fixing ring block (601), the deviation correction cable (19) being wound in a wire groove on a side of the second wire roller (602) far away from each other; A guide post (603), the guide post (603) being fixedly connected to the front end of the mounting side plate (18) on a side close to each other, the guide post (603) being located in front of the second wire roller (602); A second alignment ring block (604), wherein the second alignment ring block (604) is fixedly connected to one end of the guide column (603) that is close to each other, and the deviation correction cable (19) passes through the interior of the second alignment ring block (604).

8. A gantry crane deviation correction mechanism according to claim 7, characterized in that: The wire groove of the second wire roller (602) is tangent to the axial extension lines inside the first wire alignment ring block (601) and the second wire alignment ring block (604), respectively.

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