Electric single-beam suspension bridge crane

Abstract

The utility model relates to the technical field of single-beam cranes, in particular to an electric single-beam suspension bridge crane which comprises a contraction box, a contraction spring is fixedly installed in the contraction box, a power line is movably installed on the contraction spring, the two ends of the power line penetrate through a cylinder cover and the contraction box, and the cylinder cover is fixedly installed at the left end of the contraction box. A fixing screw is movably installed on the barrel cover, a hoisting mechanism is arranged at the left end of the barrel cover and comprises a take-up barrel, a barrel cover is movably installed at the right end of the take-up barrel, and a moving mechanism is arranged at the top end of the take-up barrel. Therefore, the power line can be prevented from being dragged when a lifted object moves, the power line is further prevented from being broken, a connecting screw penetrates through the arc-shaped plate to fix the take-up barrel, so that the lifting structure and the moving structure can be separated, and assembly maintenance or assembly replacement is more convenient and faster to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of single-girder crane technology, specifically to an electric single-girder suspension bridge crane. Background Technology

[0002] Electric single-girder overhead cranes are a type of light lifting equipment that runs on I-beam rails. They are available in both electric and manual versions, and are relatively simple to use, with heavy objects suspended on them.

[0003] As disclosed in the authorization announcement number CN216004962U, an electric single-girder suspended bridge crane relates to the field of single-girder crane technology. It includes an I-beam, with a traveling mechanism slidably mounted on the upper end of the I-beam and an electric hoist fixedly mounted on the bottom end of the traveling mechanism. The bottom end of the electric hoist is equipped with a hook. One of the mounting plates is located above the reduction motor and has a lubrication mechanism. This utility model has a lubrication mechanism on the upper side of one side of the traveling mechanism. When maintenance of the electric single-girder suspended bridge crane is required, the oil valve is opened, and the lubricating oil inside the oil tank flows through the oil valve to the surface of the second transmission gear. Since the second transmission gear meshes with two first transmission gears, when the traveling mechanism moves, the lubricating oil on the surface of the second transmission gear evenly adheres to the surfaces of the two first transmission gears, thereby completing the lubrication of the driven components. This eliminates the need for manual climbing onto the crossbeam, saving time and effort and reducing safety hazards.

[0004] However, in existing cranes, the power cord is suspended on the pulley block of the support beam. When the crane moves, the power cord is driven by the crane and moves and retracts through the pulley. However, this structure causes the power cord to be suspended under the support beam for a long time. When there is a foreign object at the support beam, the power cord will be pulled by the crane and the foreign object, causing the power cord to break. Moreover, long-term exposure to the air will cause the line to age and affect its service life. Utility Model Content

[0005] The purpose of this utility model is to provide an electric single-girder suspension bridge crane to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electric single-girder suspension bridge crane includes a retraction box, inside which a retraction spring is fixedly installed. A power cord is movably installed on the retraction spring, with both ends of the power cord passing through a drum cover and the retraction box. The drum cover is fixedly installed on the left end of the retraction box, and a fixing screw is movably installed on the drum cover. A lifting mechanism is provided at the left end of the drum cover, and the lifting mechanism includes a take-up drum. A drum cover is movably installed at the right end of the take-up drum, and a moving mechanism is provided at the top of the take-up drum.

[0008] Preferably, the lifting mechanism further includes a cover, which is movably installed on the left end of the take-up drum, and an assembly screw is movably installed on the cover. A drive motor is fixedly installed inside the cover.

[0009] Preferably, a take-up shaft is fixedly installed at the front end of the drive motor, the take-up shaft is movably installed inside the take-up drum, a sling is fixedly installed on the take-up shaft, one end of the sling is fixedly installed at the bottom end of the take-up drum, and a pulley hook is movably installed on the outside of the sling.

[0010] Preferably, the moving mechanism includes an arc-shaped plate, a take-up drum is movably mounted at the bottom end of the arc-shaped plate, and connecting screws are fixedly mounted on the left and right sides of the top end of the arc-shaped plate.

[0011] Preferably, a movable groove is fixedly installed at the top of the arc-shaped plate, and a transmission box is fixedly installed at both ends of the movable groove. A transmission gear is movably installed on the upper side inside the transmission box.

[0012] Preferably, a drive shaft is fixedly installed inside the drive gear, a rubber roller is fixedly installed at the front end of the drive shaft through the transmission box and the moving groove, and a drive chain is movably installed on the outside of the drive gear.

[0013] Preferably, a rotating gear is movably mounted on the lower side of the transmission chain, and a rotating shaft is fixedly mounted inside the rotating gear. One end of the rotating shaft passes through the transmission box and is fixedly mounted at the front end of the rotating motor.

[0014] Preferably, a mounting plate is fixedly installed at the front end of the rotating motor, the mounting plate is movably installed at one end of the transmission box, and mounting screws are movably installed on the mounting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This electric single-girder overhead crane reduces the exposure of the power cord by retracting and resetting the spring, thus preventing the power cord from being pulled by foreign objects when the lifted items are moved, and thus avoiding the power cord breaking and rendering the crane unusable.

[0017] 2. This electric single-girder suspension bridge crane uses connecting screws to fix the take-up drum through the arc-shaped plate, allowing the lifting structure and the moving structure to be separated. Therefore, disassembly and assembly are more convenient and quick when repairing or replacing components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the moving mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the lifting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the shrink box of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal plan of the shrink box of this utility model.

[0023] In the diagram: 101, retraction box; 102, retraction spring; 103, power cord; 104, cap; 105, fixing screw; 106, lifting mechanism; 201, take-up reel; 202, moving mechanism; 203, cover; 204, assembly screw; 205, drive motor; 206, take-up shaft; 301, sling; 302, curved plate; 303, connecting screw; 304, moving groove; 305, transmission box; 306, transmission gear; 401, transmission shaft; 402, rubber roller; 403, transmission chain; 404, rotating gear; 405, rotating shaft; 406, rotating motor; 501, mounting plate; 502, mounting screw; 503, pulley hook. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 As shown, this utility model provides a technical solution:

[0026] An electric single-girder suspension bridge crane includes a retraction box 101, inside which a retraction spring 102 is fixedly installed. A power cord 103 is movably installed on the retraction spring 102. Both ends of the power cord 103 pass through a cover 104 and the retraction box 101. The cover 104 is fixedly installed on the left end of the retraction box 101, and a fixing screw 105 is movably installed on the cover 104. A lifting mechanism 106 is provided at the left end of the cover 104. The lifting mechanism 106 includes a take-up drum 201. The cover 104 is movably installed at the right end of the take-up drum 201, and a moving mechanism 202 is provided at the top of the take-up drum 201.

[0027] The above solution allows the power cord wound on the winding spring to extend and retract inside the winding box by retracting and resetting the winding spring. The power cord can power the entire system. The winding box and the winding drum can be assembled and fixed by fixing screws through the drum cover. The sling can be retrieved and stored through the winding drum.

[0028] In this embodiment, preferably, the lifting mechanism 106 further includes a cover 203, which is movably installed on the left end of the take-up drum 201. An assembly screw 204 is movably installed on the cover 203, and a drive motor 205 is fixedly installed inside the cover 203.

[0029] The above solution allows the drive motor to be fixed inside the take-up drum by connecting the assembly screws through the cover.

[0030] In this embodiment, preferably, a take-up shaft 206 is fixedly installed at the front end of the drive motor 205, the take-up shaft 206 is movably installed inside the take-up drum 201, a sling 301 is fixedly installed on the take-up shaft 206, one end of the sling 301 is fixedly installed at the bottom end of the take-up drum 201, and a pulley hook 503 is movably installed on the outside of the sling 301.

[0031] The above scheme uses a drive motor to rotate the take-up shaft, which allows the sling to be retracted and extended. This enables the pulley hook to slide up and down on the retracted and extended sling to lift the object.

[0032] In this embodiment, preferably, the moving mechanism 202 includes an arc-shaped plate 302, a take-up drum 201 is movably installed at the bottom end of the arc-shaped plate 302, and connecting screws 303 are fixedly installed on the left and right sides of the top end of the arc-shaped plate 302.

[0033] Using the above method, the take-up drum can be assembled and fixed by connecting screws through the arc-shaped plate.

[0034] In this embodiment, preferably, a movable groove 304 is fixedly installed at the top of the arc plate 302, and a transmission box 305 is fixedly installed at both ends of the movable groove 304. A transmission gear 306 is movably installed on the upper side inside the transmission box 305.

[0035] The above scheme allows for the installation of the transmission structure via the transmission box, and the transmission gears can transmit power.

[0036] In this embodiment, preferably, a transmission shaft 401 is fixedly installed inside the transmission gear 306, and a rubber roller 402 is fixedly installed at the front end of the transmission shaft 401 through the transmission box 305 and the moving groove 304. A transmission chain 403 is movably installed on the outside of the transmission gear 306.

[0037] The above scheme allows the transmission chain to rotate, which in turn drives the transmission gear to rotate the transmission shaft, thereby causing the rubber roller to rotate on the support beam and move the entire crane.

[0038] In this embodiment, preferably, a rotating gear 404 is movably mounted on the lower side of the transmission chain 403, and a rotating shaft 405 is fixedly mounted inside the rotating gear 404. One end of the rotating shaft 405 passes through the transmission box 305 and is fixedly mounted at the front end of the rotating motor 406.

[0039] The above method allows the rotating shaft to rotate by rotating the motor, which in turn causes the rotating gear to drive the transmission chain to rotate.

[0040] In this embodiment, preferably, a mounting plate 501 is fixedly installed at the front end of the rotating motor 406, the mounting plate 501 is movably installed at one end of the transmission box 305, and mounting screws 502 are movably installed on the mounting plate 501.

[0041] With the above method, the drive motor can be installed on the transmission box by installing screws through the mounting plate, and the drive motor can provide power for the overall movement.

[0042] In this embodiment of the electric single-girder suspension bridge crane, the user engages the moving slot 304 with the support beam, ensuring the rubber roller 402 adheres to the upper support surface of the support beam. Then, one end of the power cord 103 is connected to a power source, and the other end is connected to the drive motor 205 and the rotating motor 406 respectively, thus powering the crane. The user then starts the rotating motor 406, causing it to rotate the rotating shaft 405 and the rotating gear 404. When the rotating gear 404 rotates, the transmission chain 403 is driven to rotate, causing the transmission gear 306 to drive the transmission shaft 405. 1. The rubber roller 402 rotates, increasing the friction between the rubber roller 402 and the upper support surface of the support beam. Therefore, when the rubber roller 402 rotates, it drives the moving groove 304 to move on the support beam. During this movement, the winding spring 102 is driven by the power cord 103 to tighten within the winding box 101. The power cord 103 is coiled around the outside of the winding spring 102, thus extending during tightening. Simultaneously, the pulley hook 503 is moved along with the spring. The pulley hook 503 adopts (Publication No.: 202020415730.9) The structure of the pulley hook cable anti-derailment device involves the following: when the pulley hook 503 is moved to the designated location, the drive motor 205 drives the take-up shaft 206 to reverse. This reversal lengthens the sling 301, causing the pulley hook 503 to slide down and descend on the extended sling 301 under gravity. This allows the pulley hook 503 to mount the object to be lifted. After the object is mounted, the drive motor 205 drives the take-up shaft 206 to rotate forward, causing the sling 301 to be wound onto the take-up shaft 206, while the pulley hook 503 slides on the sling 301. The lifting mechanism lifts the loaded item, and after lifting, the rotating motor 406 moves the lifted item to the desired location. Simultaneously, as the item is lifted and the tension in the power cord 103 is released, the retracting spring 102 resets, causing the power cord 103 to coil back inside the retraction box 101. This retraction reduces the exposure of the power cord 103, preventing it from being pulled by foreign objects during the lifting and moving process, thus avoiding breakage and the crane becoming unusable. The above describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric single-girder suspension bridge crane, characterized by: Include shrinkage box (101), shrinkage box (101) inside fixed installation has shrinkage spring (102), shrinkage spring (102) on the movable installation has power cord (103), power cord (103) both ends through the cylinder cover (104) and shrinkage box (101), cylinder cover (104) fixedly installed in shrinkage box (101) left end, cylinder cover (104) on the movable installation has fixed screw (105), cylinder cover (104) left end is provided with hoisting mechanism (106), hoisting mechanism (106) includes take-up drum (201), take-up drum (201) right end movable installation has cylinder cover (104), take-up drum (201) top end is provided with moving mechanism (202).

2. The electric single-girder suspended bridge crane according to claim 1, characterized in that: The hoisting mechanism (106) further comprises a cover (203), the cover (203) is movably installed on the left end of the take-up drum (201), the cover (203) is movably installed with an assembling screw (204), and the cover (203) is fixedly installed with a driving motor (205) inside.

3. The electric single-girder suspended bridge crane according to claim 2, characterized in that: The driving motor (205) is fixedly installed with a take-up shaft (206) at the front end, the take-up shaft (206) is movably installed inside the take-up drum (201), the take-up shaft (206) is fixedly installed with a sling (301), one end of the sling (301) is fixedly installed at the bottom end of the take-up drum (201), and the sling (301) is movably installed with a pulley hook (503) outside.

4. The electric single-girder suspended bridge crane according to claim 1, characterized in that: The moving mechanism (202) comprises an arc plate (302), the arc plate (302) bottom end movable installation has take-up drum (201), arc plate (302) top end left and right sides fixedly installed with connecting screw (303).

5. The electric single-girder suspended bridge crane according to claim 4, characterized in that: The arc plate (302) top end fixedly installed with a moving groove (304), the moving groove (304) left and right ends are fixedly installed with a transmission box (305), and the transmission box (305) is movably installed with a transmission gear (306) inside the upper side.

6. The electric single-girder suspended bridge crane according to claim 5, characterized in that: The transmission gear (306) is fixedly installed with a transmission shaft (401) inside, the transmission shaft (401) is fixedly installed with a rubber roller (402) at the front end penetrating the transmission box (305) and the moving groove (304), and the transmission gear (306) is movably installed with a transmission chain (403) outside.

7. The electric single-girder suspended bridge crane according to claim 6, characterized in that: The transmission chain (403) is movably installed with a rotating gear (404) below, the rotating gear (404) is fixedly installed with a rotating shaft (405) inside, and one end of the rotating shaft (405) penetrates the transmission box (305) and is fixedly installed at the front end of the rotating motor (406).

8. The electric single-girder suspended bridge crane according to claim 7, characterized in that: The rotating motor (406) is fixedly installed with a mounting plate (501) at the front end, the mounting plate (501) is movably installed at one end of the transmission box (305), and the mounting plate (501) is movably installed with a mounting screw (502).

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