Trolley moving device of bridge crane

Abstract

The utility model provides a bridge crane trolley moving device which comprises a displacement structure, the displacement structure comprises a rotating shaft and a roller, the rotating shaft is rotatably connected to the interior of a support, one side of the rotating shaft is provided with a universal joint body, the other side of the rotating shaft is provided with a mounting plate, the outer wall of the mounting plate is annularly provided with a clamping groove, and the clamping groove is provided with a clamping groove. Positioning plates are arranged on the inner sides of the rolling wheels, and fixing bolts are in threaded connection with the interiors of the positioning plates. The auxiliary moving structure is reasonable in design, the frame can be supported upwards through the arranged auxiliary moving structure, the rollers can be separated from the guide rails of the bridge crane, then the fixing bolts are sequentially rotated to drive the inserting rods to be separated from the clamping grooves, and the rollers can be rapidly taken down from the trolley to be replaced. And meanwhile, the insertion rods and the clamping grooves are mutually clamped to realize synchronous rotation of the rollers.

Description

Technical Field

[0001] The utility model mainly relates to the field of bridge cranes, and in particular to a trolley moving device for a bridge crane. Background Art

[0002] A bridge crane is a lifting device that is horizontally mounted above a workshop, warehouse, or material yard to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it looks like a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, making full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machinery;

[0003] A trolley device is arranged on the top of the bridge crane to move the lifting device.

[0004] The inventor discovered the following defects during the operation of the specific embodiment:

[0005] The trolley contacts the bridge crane through the wheels, which are the main force-bearing parts, making the wheels in the trolley easily damaged. However, the trolley is set at a high altitude, and it is inconvenient for the crane to lift the trolley, making it more troublesome to replace the wheels of the trolley.

[0006] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0007] 1. Technical problems to be solved by the utility model:

[0008] The utility model provides a bridge crane trolley moving device, which is used to solve the technical problems existing in the above-mentioned background technology.

[0009] 2. Technical solution:

[0010] To achieve the above-mentioned purpose, the technical solution provided by the utility model is as follows: a bridge crane trolley moving device, comprising a frame, brackets are arranged on both sides of the frame, a displacement structure is rotatably connected inside the brackets, a connecting bar is arranged between the two brackets, and an auxiliary moving structure is arranged inside the connecting bar;

[0011] A displacement structure includes a rotating shaft and a roller. The rotating shaft is rotatably connected to the inside of the bracket. A universal joint body is provided on one side of the rotating shaft, and a mounting plate is provided on the other side of the rotating shaft. A groove is provided in an annular manner on the outer wall of the mounting plate. A positioning plate is provided on the inner side of the roller. A fixing bolt is threadedly connected to the positioning plate. One end of the fixing bolt is rotatably connected to a plug rod, and the plug rod is engaged with the slot.

[0012] Furthermore, the auxiliary moving structure includes a hydraulic telescopic rod, which is arranged in the middle of the top of the connecting bar, and a lifting plate is arranged at the output end of the hydraulic telescopic rod, and sliding rods are arranged at the bottom of both ends of the lifting plate.

[0013] Furthermore, the slide bar is slidably connected to the inside of the connecting strip, and a guide wheel is provided at the bottom of the slide bar.

[0014] Furthermore, a servo motor is arranged on the top of the outer wall on both sides of the frame, and an active bevel gear is arranged at the output end of the servo motor.

[0015] Furthermore, one side of the universal joint body is rotatably connected to a universal shaft, a connecting shaft is provided between the two universal shafts, and the connecting shaft is rotatably connected to the universal shaft.

[0016] Furthermore, a driven bevel gear is disposed on the outer wall of the connecting shaft, and the driven bevel gear is meshedly connected with the driving bevel gear.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0019] The utility model can prop up the frame upwards through the auxiliary moving structure, so that the roller can be separated from the guide rail of the bridge crane, and then the fixing bolts are rotated in sequence, so that the fixing bolts drive the insertion rod to be separated from the card slot, so that the roller can be quickly removed from the trolley for replacement, and the insertion rod and the card slot are engaged with each other to realize the synchronous rotation of the roller;

[0020] The guide wheels in the auxiliary moving structure are also in contact with the guide rails to provide auxiliary support for the frame, thereby preventing the frame from bending in the middle due to excessive force, which would affect the lifting accuracy of the bridge crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional unfolding structure of the displacement structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the auxiliary mobile structure of the utility model.

[0024] Reference numerals:

[0025] 1. Frame; 2. Bracket; 3. Connecting bar; 4. Auxiliary moving structure; 401. Hydraulic telescopic rod; 402. Lifting plate; 403. Sliding rod; 404. Guide wheel; 5. Servo motor; 6. Active bevel gear; 7. Displacement structure; 701. Rotating shaft; 702. Universal joint body; 703. Universal shaft; 704. Mounting plate; 705. Slot; 706. Roller; 707. Positioning plate; 708. Fixing bolt; 709. Insert rod; 8. Connecting shaft; 9. Driven bevel gear. DETAILED DESCRIPTION

[0026] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0030] Refer to the attached Figure 1-3A bridge crane trolley moving device comprises a frame 1, brackets 2 are arranged on both sides of the frame 1, a displacement structure 7 is rotatably connected inside the brackets 2, a connecting bar 3 is arranged between the two brackets 2, and an auxiliary moving structure 4 is arranged inside the connecting bar 3;

[0031] The displacement structure 7 includes a rotating shaft 701 and a roller 706. The rotating shaft 701 is rotatably connected to the inside of the bracket 2. A universal joint body 702 is provided on one side of the rotating shaft 701, and a mounting plate 704 is provided on the other side of the rotating shaft 701. A groove 705 is provided in an annular shape on the outer wall of the mounting plate 704. A positioning plate 707 is provided on the inner side of the roller 706. A fixing bolt 708 is threadedly connected to the internal part of the positioning plate 707. One end of the fixing bolt 708 is rotatably connected to a plug rod 709, and the plug rod 709 is engaged with the groove 705.

[0032] Furthermore, the auxiliary mobile structure 4 includes a hydraulic telescopic rod 401, which is arranged in the middle of the top of the connecting bar 3, and a lifting plate 402 is arranged at the output end of the hydraulic telescopic rod 401, and sliding rods 403 are arranged at the bottom of both ends of the lifting plate 402. The sliding rod 403 is slidably connected to the inside of the connecting bar 3, and a guide wheel 404 is arranged at the bottom of the sliding rod 403. When the roller 706 needs to be replaced, the hydraulic telescopic rod 401 is started, the hydraulic telescopic rod 401 drives the lifting plate 402 to descend, the lifting plate 402 drives the sliding rod 403 to slide on the inner wall of the connecting bar 3, and the sliding rod 403 drives the guide wheel 404 to prop up the frame 1, so that the frame 1 drives the roller 706 to disengage from the guide rail, thereby realizing rapid replacement of the roller 706.

[0033] Furthermore, a servo motor 5 is provided on the top of the outer wall on both sides of the frame 1, and a driving bevel gear 6 is provided at the output end of the servo motor 5. A universal shaft 703 is rotatably connected to one side of the universal joint body 702, and a connecting shaft 8 is provided between the two universal shafts 703. The connecting shaft 8 is rotatably connected to the universal shaft 703, and a driven bevel gear 9 is provided on the outer wall of the connecting shaft 8. The driven bevel gear 9 is meshed and connected with the driving bevel gear 6. Universal joints are also provided at both ends of the connecting shaft 8 and connected to the universal shaft 703. The servo motor 5 is started, and the servo motor 5 drives the driving bevel gear 6 to rotate. The driving bevel gear 6 drives the connecting shaft 8 to rotate through the driven bevel gear 9, so that the connecting shaft 8 drives the displacement structure 7 to rotate, thereby driving the trolley to move.

[0034] In this embodiment, when the trolley needs to be driven to move on the guide rail in the bridge crane by the moving device, the servo motor 5 is started, the servo motor 5 drives the active bevel gear 6 to rotate, and the active bevel gear 6 drives the connecting shaft 8 to rotate through the driven bevel gear 9, so that the connecting shaft 8 drives the roller 706 in the displacement structure 7 to move on the guide rail, thereby driving the trolley;

[0035] When the roller 706 needs to be replaced, the hydraulic telescopic rod 401 is started, and the hydraulic telescopic rod 401 drives the lifting plate 402 to move downward, and the lifting plate 402 drives the sliding rod 403 to slide inside the connecting strip 3, and the sliding rod 403 drives the guide wheel 404 to move downward and prop up the frame 1, so that the mounting plate 704 is separated from the guide rail, and then the fixing bolts 708 are rotated in sequence, and the fixing bolts 708 drive the insertion rod 709 to separate from the slot 705, so that the roller 706 is separated from the mounting plate 704, and the damaged roller 706 is removed for replacement.

[0036] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A bridge crane trolley moving device, characterized in that: include A vehicle frame (1), wherein brackets (2) are arranged on both sides of the vehicle frame (1), a displacement structure (7) is rotatably connected inside the brackets (2), a connecting bar (3) is arranged between the two brackets (2), and an auxiliary movement structure (4) is arranged inside the connecting bar (3); A displacement structure (7) comprises a rotating shaft (701) and a roller (706), wherein the rotating shaft (701) is rotatably connected to the inside of a bracket (2), a universal joint body (702) is provided on one side of the rotating shaft (701), and a mounting plate (704) is provided on the other side of the rotating shaft (701), a retaining groove (705) is provided in an annular shape on the outer wall of the mounting plate (704), a positioning plate (707) is provided on the inner side of the roller (706), a fixing bolt (708) is threadedly connected to the inside of the positioning plate (707), one end of the fixing bolt (708) is rotatably connected to an insertion rod (709), and the insertion rod (709) is engaged and connected to the retaining groove (705).

2. The bridge crane trolley moving device according to claim 1, characterized in that: The auxiliary moving structure (4) comprises a hydraulic telescopic rod (401), wherein the hydraulic telescopic rod (401) is arranged in the middle of the top of the connecting bar (3), a lifting plate (402) is arranged at the output end of the hydraulic telescopic rod (401), and sliding rods (403) are arranged at the bottom of both ends of the lifting plate (402).

3. The bridge crane trolley moving device according to claim 2 is characterized in that: The sliding rod (403) is slidably connected to the inside of the connecting bar (3), and a guide wheel (404) is provided at the bottom of the sliding rod (403).

4. The bridge crane trolley moving device according to claim 1, characterized in that: A servo motor (5) is arranged at the top of the outer wall on both sides of the frame (1), and a driving bevel gear (6) is arranged at the output end of the servo motor (5).

5. The bridge crane trolley moving device according to claim 1, characterized in that: One side of the universal joint body (702) is rotatably connected to a universal shaft (703); a connecting shaft (8) is provided between the two universal shafts (703); and the connecting shaft (8) is rotatably connected to the universal shaft (703).

6. The bridge crane trolley moving device according to claim 5, characterized in that: A driven bevel gear (9) is provided on the outer wall of the connecting shaft (8), and the driven bevel gear (9) is meshingly connected with the driving bevel gear (6).

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