Single-beam crane trolley wheel positioning device capable of preventing rail gnawing

Abstract

The utility model relates to the technical field of single-beam cranes, in particular to a rail gnawing prevention single-beam crane trolley wheel positioning device which comprises a wheel positioning device body and a single-beam crane, a single-beam crane main beam is arranged above the single-beam crane, a single-beam crane trolley is installed on the single-beam crane main beam, and a rail gnawing prevention device is installed on the single-beam crane trolley. The wheel positioning device body is arranged on a trolley of the single-beam crane and located on the two sides of a main beam of the single-beam crane, the main beam of the single-beam crane is of an I-shaped structure, and guide rails are fixed to the two ends of the main beam of the single-beam crane respectively. The upper end and the lower end of the wheel positioning device body are connected with an upper limiting plate and a lower limiting plate correspondingly. According to the anti-rail-gnawing single-beam crane trolley wheel positioning device, the guide rails can be clamped by the wheels by arranging the limiting discs with different sizes on the two sides of the wheels, the distance between the wheels on the two sides can be adjusted according to needs, the axes of the wheels are parallel to the rails, meanwhile, the positioning structure is stable, and the rail gnawing condition is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of single-girder crane technology, specifically to a single-girder crane trolley wheel positioning device for preventing rail chipping. Background Technology

[0002] A single-girder crane is a common type of light-duty lifting equipment, mainly composed of a main girder, end beams at both ends, a trolley (including hoisting and traveling mechanisms), a trolley traveling mechanism, and an electrical control system. It is used in factories, warehouses, logistics centers, and other locations for handling, loading, unloading, and stacking materials. The trolley of a single-girder crane moves laterally along the main girder to complete the vertical and horizontal handling of goods.

[0003] In existing single-girder cranes, the wheels of the trolley are positioned by rails. If the wheel axle is not parallel to the rail or the perpendicularity of the wheel end face exceeds the tolerance, the wheel will exert a lateral force on the rail during operation, which will cause rail biting. To prevent rail biting, it is necessary to ensure that the wheels of the single-girder crane trolley are correctly aligned and in contact with the rail. Usually, the distance between the two sides of the trolley is adjusted to control the wheel spacing, thereby ensuring that the wheel axle is parallel to the rail. However, the trolley is usually only positioned and adjusted by connecting rods, which is not stable enough and is prone to loosening during operation, thus affecting the stability of the wheels. Utility Model Content

[0004] The purpose of this utility model is to provide a single-girder crane trolley wheel positioning device to prevent rail biting, thereby solving the problem mentioned in the background art that the trolley under the current market is usually only positioned and adjusted by connecting rods, which is not stable enough and is prone to loosening during operation, thus affecting the stability of the wheels and causing rail biting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheel positioning device for a single-girder crane trolley to prevent rail chipping, comprising a wheel positioning device body and a single-girder crane. A main beam of the single-girder crane is located above the crane, and a trolley is mounted on the main beam. The wheel positioning device body is located on the trolley, situated on both sides of the main beam. The main beam is an I-beam structure, and guide rails are fixed to both ends. An upper limit plate and a lower limit plate are connected to the upper and lower ends of the wheel positioning device body, respectively. A transmission connecting rod extends through the side of the wheel positioning device body, and a wheel is fixedly mounted on the transmission connecting rod. A first and second limiting disc of different sizes are integrally provided at both ends of the wheel, with the distance between the first and second limiting discs being greater than the width of the upper surface of the guide rail. A side limiting rail is also integrally provided on the outer side of the guide rail, and a stabilizing guide wheel corresponding to the position of the side limiting rail is provided on the side of the wheel positioning device body, engaging with the side limiting rail.

[0006] Preferably, the outer side of the wheel positioning device body is fixed with a threaded fastening rod by welding, and the fastening rod is in a through-fitting relationship with the single-girder crane trolley.

[0007] Preferably, the stabilizing guide wheel is fixed with a U-shaped positioning component by a rotating rod, and the U-shaped positioning component is movably connected to the main body of the wheel positioning device. A T-shaped limiting rod is fixed on the U-shaped positioning component, and a stabilizing spring and a fixing plate are sleeved on the limiting rod.

[0008] Preferably, the two ends of the stabilizing spring are respectively fastened to the U-shaped positioning component and the fixing plate, and the limiting rod and the fixing plate are movable through each other, and the fixing plate and the main body of the wheel positioning device are fastened by bolts.

[0009] Preferably, the upper end of the single-girder crane trolley is fixed with an upper positioning plate by bolts, and the lower end of the single-girder crane trolley is connected with a connecting plate by welding.

[0010] Preferably, the lower end of the upper positioning plate and the connecting plate are respectively fixed with limit strips by bolts, and the upper and lower limit plates are respectively engaged with the limit strips in a movable snap-fit ​​manner.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: This anti-rail-biting single-girder crane trolley wheel positioning device, by setting limiting discs of different sizes on both sides of the wheel, enables the wheel to lock onto the guide rail, and the distance between the two wheels can be adjusted as needed. The wheel axis is parallel to the rail, and the positioning structure is stable, effectively preventing rail biting. This anti-rail-biting single-girder crane trolley wheel positioning device has a side limiting rail integrally set on the outer side of the guide rail, and a stabilizing guide wheel can be set under the wheel. The cooperation between the stabilizing guide wheel and the side limiting rail ensures the reliability of wheel positioning. At the same time, the wheel positioning structure is stable, easy to adjust, and can operate reliably. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a single-girder crane trolley wheel positioning device for preventing rail chipping according to this utility model;

[0013] Figure 2 This utility model relates to a wheel positioning device for a single-girder crane trolley that prevents rail chipping. Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This is a schematic diagram of the position structure of a single-girder crane trolley wheel positioning device for preventing rail chipping relative to the single-girder crane trolley according to the present invention.

[0015] In the diagram: 1. Wheel positioning device body; 101. Upper limit plate; 102. Lower limit plate; 2. Wheel; 201. First limit plate; 202. Second limit plate; 3. Guide rail; 301. Side limit rail; 4. Transmission connecting rod; 5. Stabilizing guide wheel; 501. U-shaped positioning component; 502. Stabilizing spring; 503. Limiting rod; 504. Fixing plate; 6. Connecting plate; 7. Single-girder crane trolley; 701. Upper positioning plate; 8. Single-girder crane main beam; 9. Single-girder crane; 10. Limiting strip; 11. Fastening rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a wheel positioning device for a single-girder crane trolley to prevent rail wear, comprising a wheel positioning device body 1 and a single-girder crane 9. A main beam 8 of the single-girder crane 9 is provided above the main beam 8, and a single-girder crane trolley 7 is mounted on the main beam 8. The wheel positioning device body 1 is located on the single-girder crane trolley 7. A threaded fastening rod 11 is welded to the outer side of the wheel positioning device body 1, and the fastening rod 11 is in a through-fitting relationship with the single-girder crane trolley 7. This structure allows the wheel positioning device body 1 and the single-girder crane trolley 7 to be positioned and fastened through the fastening rod 11, achieving stable positioning of the wheel 2 after adjustment. The wheel positioning device body 1 is located on both sides of the main beam 8 of the single-girder crane. The main beam 8 of the single-girder crane has an I-beam structure, and guide rails 3 are fixed at both ends of the main beam 8. The upper and lower ends of the wheel positioning device body 1 are respectively connected to an upper limit plate 101 and a lower limit plate 102. A transmission connecting rod 4 runs through the side of the wheel positioning device body 1, and a wheel 2 is fixedly mounted on the transmission connecting rod 4. The wheel 2 has a first limit plate 201 and a second limit plate 202 of different sizes integrated at both ends. By symmetrically increasing the size of one side of the limit plate, the stability of the wheel 2 positioning can be increased, preventing rail wear. The distance between the first limit plate 201 and the second limit plate 202 is greater than the width of the upper surface of the guide rail 3. An upper positioning plate 701 is fixed to the upper end of the single-girder crane trolley 7 by bolts. The lower end of the trolley 7 is connected to the connecting plate 6 by welding. This structure allows the trolley 7 of the single-girder crane and the connecting plate 6 to form a U-shaped structure, making the positioning structure of the trolley 7 of the single-girder crane stable. Therefore, the main body 1 of the wheel positioning device can have a reliable support structure to ensure the running stability of the wheels 2. The lower end of the upper positioning plate 701 and the connecting plate 6 are respectively fixed with limit strips 10 by bolts, and the upper limit plate 101 and the lower limit plate 102 are respectively engaged with the limit strips 10. This structure allows the main body 1 of the wheel positioning device to perform displacement limiting treatment through the positioning of the limit strips 10, ensuring the stability of the wheels 2 on both sides. The outer side of the guide rail 3 is also integrally provided with a side limit rail 301, and the side of the main body 1 of the wheel positioning device is provided with a position corresponding to the side limit rail 301. The corresponding stabilizing guide wheel 5 engages with the side limiting rail 301. The stabilizing guide wheel 5 is fixed with a U-shaped positioning component 501 via a rotating rod, and the U-shaped positioning component 501 movably passes through the main body 1 of the wheel positioning device. A T-shaped limiting rod 503 is fixed on the U-shaped positioning component 501, and a stabilizing spring 502 and a fixing plate 504 are sleeved on the limiting rod 503. This structure allows the stabilizing guide wheel 5 and the main body 1 of the wheel positioning device to be adjusted and positioned via the stabilizing spring 502, enabling the stabilizing guide wheel 5 to self-adjust and ensuring that it is always engaged with the side limiting rail 301. The rotation axis of the stabilizing guide wheel 5 is perpendicular to the rotation axis of the wheel 2, ensuring stable positioning of the wheel 2 by the stabilizing guide wheel 5 and preventing wheel 2 from biting off the rail.The two ends of the stabilizing spring 502 are respectively fastened to the U-shaped positioning member 501 and the fixing plate 504, and the limiting rod 503 movably passes through the fixing plate 504. The fixing plate 504 is fastened to the wheel positioning device body 1 by bolts. This structure allows the U-shaped positioning member 501 to be fixed relative to the wheel positioning device body 1 via the fixing plate 504, while the U-shaped positioning member 501 is movable relative to the fixing plate 504 via the limiting rod 503, enabling the stabilizing guide wheel 5 to be displaceable. This prevents the stabilizing guide wheel 5 from being affected when adjusting the distance between the wheels 2.

[0018] Working principle: When using the anti-gnawing single-girder crane trolley wheel positioning device, the single-girder crane 9 first positions the single-girder crane trolley 7 via the single-girder crane main beam 8. The single-girder crane trolley 7 forms a U-shaped structure through the connecting plate 6, allowing the single-girder crane trolley 7 to move upward from below the single-girder crane main beam 8, so that the wheel positioning device body 1 engages with the single-girder crane main beam 8. Then, the wheel positioning device body 1 is pushed, so that the upper limit plate 101 and the lower limit plate 102 move relative to the upper positioning plate 701 and the connecting plate 6 respectively under the limitation of the limit strip 10, moving the wheel 2 above the guide rail 3. The wheel 2 moves under the positioning of the transmission connecting rod 4. Then, the wheel positioning device body 1 is lowered, and the first limit plate 201 and the second limit plate 202 engage with the guide rail 3 on both sides, ensuring that the wheel 2 is engaged with the guide rail 3. After the guide rail 3 is reliably engaged, the stabilizing guide wheel 5 is inserted into the main body 1 of the wheel positioning device. The stabilizing guide wheel 5 holds the side limiting rail 301 in place, and then the fixing plate 504 is bolted to the main body 1 of the wheel positioning device. Since the stabilizing spring 502 is connected between the U-shaped positioning part 501 and the fixing plate 504 and is limited by the limiting rod 503, the stabilizing guide wheel 5 can adaptively adjust the distance between the side limiting rail 301 and the main body 1 of the wheel positioning device. The stabilizing guide wheel 5 ensures the stability of the wheel 2. After the main body 1 of the wheel positioning device performs initial positioning of the wheel 2, the position of the wheel 2 is finely adjusted. Finally, the main body 1 of the wheel positioning device and the single-girder crane trolley 7 are fastened by the cooperation of the fastening rod 11 and the nut. Through high-precision positioning adjustment, the wheel 2 can be prevented from biting the rail, thus completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A single-beam crane trolley wheel positioning device for preventing rail gnawing, comprising a wheel positioning device main body (1) and a single-beam crane (9), wherein the single-beam crane (9) is provided with a single-beam crane main beam (8) above, the single-beam crane main beam (8) is provided with a single-beam crane trolley (7), and the wheel positioning device main body (1) is arranged on the single-beam crane trolley (7), characterized in that: The wheel positioning device body (1) is located on both sides of the single-beam crane girder (8), the single-beam crane girder (8) is an I-shaped structure, and the two ends of the single-beam crane girder (8) are fixed with guide rails (3), the upper and lower ends of the wheel positioning device body (1) are connected with upper and lower limiting plates (101) and (102) respectively, a transmission connecting rod (4) penetrates through the side surface of the wheel positioning device body (1), and a wheel (2) is sleeved and fixed on the transmission connecting rod (4), the two ends of the wheel (2) are integrally provided with first and second limiting discs (201) and (202) with different sizes, the distance between the first and second limiting discs (201) and (202) is greater than the width of the upper end surface of the guide rail (3), the outer side surface of the guide rail (3) is further integrally provided with a side limiting rail (301), and the side surface of the wheel positioning device body (1) is provided with a stable guide wheel (5) corresponding to the position of the side limiting rail (301), and the stable guide wheel (5) is clamped and matched with the side limiting rail (301). ​ 2. A single beam trolley wheel positioning device for a rail guard according to claim 1, characterised in that: The outer side surface of the wheel positioning device body (1) is fixed with a fastening rod (11) with a threaded structure through welding, and the fastening rod (11) is penetratingly matched with the single-beam crane trolley (7).

3. A single beam trolley wheel positioning device for a rail guard according to claim 1, wherein: The stable guide wheel (5) is fixed with a U-shaped positioning piece (501) through a rotating rod, and the U-shaped positioning piece (501) is movably penetrated through the wheel positioning device body (1), the U-shaped positioning piece (501) is fixed with a limiting rod (503) of a T-shaped structure, and the limiting rod (503) is sleeved with a stable spring (502) and a fixed plate (504).

4. A single beam trolley wheel positioning device for a rail guard according to claim 3, wherein: The stable spring (502) is fastened at both ends with the U-shaped positioning piece (501) and the fixed plate (504), the limiting rod (503) is movably penetrated through the fixed plate (504), and the fixed plate (504) is fastened with the wheel positioning device body (1) through bolts.

5. A single beam trolley wheel positioning device for a rail guard according to claim 1, characterized in that: The upper end of the single-beam crane trolley (7) is fixed with an upper positioning plate (701) through bolts respectively, and the lower end of the single-beam crane trolley (7) is connected with a connecting plate (6) through welding.

6. A single beam trolley wheel positioning device for a rail guard according to claim 5, wherein: The lower end of the upper positioning plate (701) and the connecting plate (6) are fixed with limiting strips (10) through bolts respectively, and the upper and lower limiting plates (101) and (102) are movably clamped and matched with the limiting strips (10) respectively.

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