Single-girder portal crane
By designing track cleaning device and top protection device on a single main beam gantry crane, the complex structure of the track cleaning device and the falling of the electric hoist is solved, and convenient installation and effective protection are achieved.
Patent Information
- Application Number
- CN202422204206.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The track cleaning device of the existing single-main beam gantry crane has a complex structure, is inconvenient to install, and there is a risk of electric hoist falling.
A single main beam gantry crane including a track cleaning device and a top protection device is designed. The track cleaning device cleans dust with a cleaning brush, prevents the electric hoist from falling, and the top protection device reduces the risk of damage to the electric hoist through buffer parts.
It reduces the risk of falling of electric hoist, simplifies the installation of track cleaning devices, improves the convenience of use, and further protects the electric hoist through the top protection device, reducing the risk of damage.
Smart Images
Figure CN223117987U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cranes, and particularly relates to a single-girder gantry crane. Background Art
[0002] A single-girder gantry crane is a common lifting device. Currently, the lifting device on a single-girder gantry crane is usually an electric hoist. During use, the electric hoist can move along the I-shaped track on the main girder. However, since most gantry cranes are used outdoors, dust and other impurities will accumulate on the I-shaped track. When there is a large amount of dust and other impurities accumulated on the I-shaped track, there is sometimes a risk of the electric hoist falling. Therefore, on existing single-girder gantry cranes, a cleaning device for cleaning the I-shaped track is usually installed. However, the structures of existing cleaning devices are relatively complex and are not convenient to install on single-girder gantry cranes, thus causing inconvenience during use. Therefore, there are still drawbacks and deficiencies in the prior art. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a single-girder gantry crane to solve the problems raised in the above background art.
[0004] The technical solution adopted by the utility model to solve the above problems:
[0005] A single-girder gantry crane includes a gantry crane body. The gantry crane body includes a main girder. An I-shaped track is installed on the main girder. An electric hoist capable of moving along the I-shaped track is installed on the I-shaped track. The electric hoist includes a drum device, a steel wire rope, and a hook. Both ends of the drum device are fixedly covered with casings located below the I-shaped track. Both ends of the top surface of the casing extend outside the I-shaped track and are fixedly connected with vertically distributed vertical plates. Anti-falling plates are fixedly connected to one side of each vertical plate close to the I-shaped track, and track cleaning devices are installed on the outer sides of the vertical plates. The track cleaning device includes a connecting rod. One end of the connecting rod is detachably and fixedly connected to the vertical plate. The other end of the connecting rod is located outside the vertical plate and is fixedly connected with a brush mounting seat. A cleaning brush capable of cleaning the I-shaped track is installed on the side of the brush mounting seat away from the connecting rod.
[0006] Further, one end of the connecting rod away from the brush mounting seat is located on the side of the vertical plate close to the I-shaped track, and a threaded rod perpendicular to the connecting rod is threadedly connected to this end of the connecting rod. The end of the threaded rod away from the connecting rod penetrates the vertical plate, and locking nuts are sleeved and threadedly connected on the threaded rods on both sides of the vertical plate. The locking nuts are respectively abutted against the vertical plate.
[0007] Further, a top collision protection device is installed between the bottoms of the two casings and is located directly below the electric hoist. The steel wire rope passes through the top collision protection device, and the hook is located below the top collision protection device.
[0008] Further, the top collision protection device includes a moving plate that is horizontally arranged directly below the electric hoist. Buffer members that can be telescoped in the vertical direction are installed between the four corners of the moving plate and the casing. A strip-shaped through hole is vertically formed in the moving plate, and the steel wire rope passes through the moving plate through the strip-shaped through hole. The hook is located below the moving plate.
[0009] Further, the buffer members each include a vertically distributed telescopic rod. The top end of the telescopic rod is fixedly connected to a connecting plate and is detachably and fixedly connected to the casing through the connecting plate. The bottom end of the telescopic rod is fixedly connected to the moving plate, and a spring is sleeved on the telescopic rod. The two ends of the spring are respectively connected to the connecting plate and the moving plate.
[0010] Further, the moving plate is of a split structure. The moving plate includes two oppositely arranged movable plates. A U-shaped through hole is vertically formed in each movable plate, and a strip-shaped through hole can be formed between the two U-shaped through holes. Two insertion blocks are fixedly connected to the opposite side of one of the movable plates, and two insertion slots opposite to the positions of the insertion blocks are formed in the opposite side of the other movable plate. The two movable plates are connected by connecting bolts.
[0011] Adopting the above technical solution, the beneficial effects of the present utility model are as follows:
[0012] Based on the existing gantry crane body and electric hoist, the present utility model can reduce the risk of the electric hoist falling by setting a track cleaning device, and at the same time, by setting an anti-falling plate, it can prevent the electric hoist from falling; in addition, the structure of the track cleaning device is relatively simple and is convenient for disassembly and assembly, so it is more convenient to use; secondly, by setting a top collision protection device, it can protect the electric hoist and can further reduce the risk of the electric hoist falling. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is Figure 1 a partially enlarged schematic structural diagram of part A in
[0015] Figure 3 is Figure 1 a left view of part of the device in
[0016] Figure 4 is Figure 2 a schematic structural diagram of part of the device in a split state in
[0017] Figure 5 is Figure 2 a schematic three - dimensional structure diagram of some devices in a split state.
[0018] Reference numerals: 1, track cleaning device; 11, connecting rod; 12, brush mounting seat; 13, cleaning brush; 14, threaded rod; 15, lock nut; 2, vertical plate; 21, reinforcing rib plate; 3, housing; 4, electric hoist; 41, drum device; 42, steel wire rope; 43, hook; 5, gantry crane body; 51, main beam; 52, I - shaped track; 6, over - travel protection device; 61, moving plate; 611, movable plate; 612, plug - in block; 613, plug - in slot; 614, connecting bolt; 62, buffer; 621, telescopic rod; 622, connecting plate; 623, spring; 63, strip - shaped through - hole; 7, anti - falling plate. Detailed implementation manners
[0019] To make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following further describes the implementation manners of the present utility model in detail with reference to the accompanying drawings.
[0020] As Figures 1 to 5 shown, the present utility model provides a single - girder gantry crane, including a gantry crane body 5. The gantry crane body 5 includes a main beam 51. An I - shaped track 52 is installed on the main beam 51. An electric hoist 4 capable of moving along the I - shaped track 52 is installed on the I - shaped track 52. Specifically, both the gantry crane body 5 and the electric hoist 4 are prior arts. During use, the electric hoist 4 can move along the I - shaped track 52. The electric hoist 4 includes a drum device 41, a steel wire rope 42, a hook 43, etc. Both ends of the drum device 41 are fixedly covered with a housing 3 located below the I - shaped track 52. Both ends of the top surface of the housing 3 extend outside the I - shaped track 52 and are fixedly connected with vertically - distributed vertical plates 2. Specifically, the vertical plates 2 are respectively located on both sides of the I - shaped track 52, and a reinforcing rib plate 21 is fixedly connected between the vertical plate 2 and the housing 3. The reinforcing rib plate 21 can improve the connection strength between the vertical plate 2 and the housing 3. And anti - falling plates 7 are fixedly connected to one side of the vertical plates 2 close to the I - shaped track 52. Specifically, one end of the anti - falling plate 7 away from the vertical plate 2 is located above the bottom of the I - shaped track 52. During use, the anti - falling plate 7 can prevent the electric hoist 4 from falling.
[0021] On the outer sides of the vertical plates 2, track cleaning devices 1 are installed. The track cleaning device 1 includes a connecting rod 11. One end of the connecting rod 11 is detachably and fixedly connected to the vertical plate 2, which facilitates the disassembly and assembly of the track cleaning device 1 on the vertical plate 2. The other end of the connecting rod 11 is located outside the vertical plate 2 and fixedly connected to a brush mounting seat 12. A cleaning brush 13 capable of cleaning the I-shaped track 52 is installed on the side of the brush mounting seat 12 away from the connecting rod 11, that is, the side of the cleaning brush 13 away from the brush mounting seat 12 is in contact with the bottom of the I-shaped track 52. During use, when the electric hoist 4 moves along the I-shaped track 52, it can drive the cleaning brush 13 to clean the dust and other impurities on the I-shaped track 52, so as to reduce the risk of the electric hoist 4 falling. And when the electric hoist 4 falls, the anti-falling plate 7 can also prevent the electric hoist 4 from falling. In addition, the structure of the track cleaning device 1 is relatively simple and convenient for disassembly and assembly, thus being more convenient to use.
[0022] The specific setting method for the detachable and fixed connection between the connecting rod 11 and the vertical plate 2 is as follows: As Figure 1 、 Figure 2 shown in Figure 4 , one end of the connecting rod 11 away from the brush mounting seat 12 is located on the side of the vertical plate 2 close to the I-shaped track 52, and a threaded rod 14 perpendicular to the connecting rod 11 is threadedly connected to this end of the connecting rod 11. The end of the threaded rod 14 away from the connecting rod 11 penetrates the vertical plate 2, and locking nuts 15 are sleeved and threadedly connected on the threaded rod 14 on both sides of the vertical plate 2. The locking nuts 15 are respectively abutted against the vertical plate 2. Specifically, during use, first penetrate the threaded rod 14 through the vertical plate 2, then sleeved the two locking nuts 15 on the threaded rod 14 respectively, connect the threaded rod 14 with the connecting rod 11, and then by rotating the cleaning brush 13, after adjusting the cleaning brush 13 to a suitable position, tighten the two locking nuts 15 against the vertical plate 2 respectively, so that the track cleaning device 1 can be installed on the vertical plate 2, thus facilitating the disassembly and assembly of the track cleaning device 1 on the vertical plate 2.
[0023] During the actual use process, when the hook 43 has the phenomenon of hitting the top, it will not only cause damage to the electric hoist 4, but sometimes the lifted heavy object will also lift the entire electric hoist 4, resulting in the risk of the electric hoist 4 falling. Therefore, as Figure 1 shown in Figure 2 , a top-hitting protection device 6 located directly below the electric hoist 4 is installed between the bottoms of the two casings 3. The steel wire rope 42 penetrates the top-hitting protection device 6, and the hook 43 is located below the top-hitting protection device 6, so that it does not affect the normal lifting operation of the electric hoist 4. When the hook 43 has the phenomenon of hitting the top, the top-hitting protection device 6 can protect the electric hoist 4 to avoid damage to the electric hoist 4. At the same time, it can reduce the situation that the heavy object lifts the entire electric hoist 4, so as to further reduce the risk of the electric hoist 4 falling.
[0024] The specific setting method of the top collision protection device 6 is as follows: As Figure 1 shown in Figure 2 , the top collision protection device 6 includes a moving plate 61 which is horizontally arranged directly below the electric hoist 4. Buffer members 62 which can be telescoped in the vertical direction are installed between the four corners of the moving plate 61 and the machine housing 3. A strip-shaped through hole 63 is vertically formed in the moving plate 61. The steel wire rope 42 passes through the moving plate 61 through the strip-shaped through hole 63, and the hook 43 is located below the moving plate 61. Specifically, during use, when the hook 43 collides with the top, the hook 43 can compress the buffer member 62 through the moving plate 61. During the compression process of the buffer member 62, it can play a buffering role to protect the electric hoist 4.
[0025] The specific setting method of the buffer member 62 is as follows: As Figure 1 shown in Figure 2 , each buffer member 62 includes a telescopic rod 621 vertically distributed. The top end of the telescopic rod 621 is fixedly connected with a connecting plate 622 and is detachably and fixedly connected with the machine housing 3 through the connecting plate 622. Specifically, the connecting plate 622 and the machine housing 3 are connected by bolts, so that it is convenient to disassemble and assemble the connecting plate 622 on the machine housing 3; the bottom end of the telescopic rod 621 is fixedly connected with the moving plate 61, and a spring 623 is sleeved on the telescopic rod 621. The two ends of the spring 623 are respectively connected with the connecting plate 622 and the moving plate 61. Specifically, during use, when the hook 43 collides with the top, the hook 43 can shorten the telescopic rod 621 through the moving plate 61 and compress the spring 623. At this time, the spring 623 can play a buffering role to avoid damage to the electric hoist 4. At the same time, it can reduce the situation that the heavy object jacks up the entire electric hoist 4; secondly, since it is convenient to disassemble and assemble the connecting plate 622 on the machine housing 3, it is convenient to disassemble and assemble the top collision protection device 6 between the two machine housings 3.
[0026] When installing the top collision protection device 6, in order to facilitate the steel wire rope 42 to pass through the strip-shaped through hole 63 of the moving plate 61, therefore, as Figure 1 , Figure 2 shown in Figure 5As shown, the moving plate 61 is of a split structure. The moving plate 61 includes two movable plates 611 arranged oppositely. Each movable plate 611 is vertically provided with a U-shaped through hole, and a strip-shaped through hole 63 can be formed between the two U-shaped through holes. On the opposite side of one of the movable plates 611, two plug-in blocks 612 are fixedly connected. On the opposite side of the other movable plate 611, two plug-in slots 613 opposite to the positions of the plug-in blocks 612 are provided, which can facilitate the alignment between the two movable plates 611. The two movable plates 611 are connected by a connecting bolt 614. Specifically, the screw end of the connecting bolt 614 passes through the movable plate 611 and is threadedly connected to the plug-in block 612 located in the plug-in slot 613, and the head of the connecting bolt 614 abuts against the movable plate 611, which can facilitate the disassembly and assembly between the two movable plates 611. During use, first, the steel wire rope 42 passes through the movable plate 611 through one of the U-shaped through holes, and then the two movable plates 611 are assembled into the moving plate 61, which can facilitate the steel wire rope 42 to pass through the moving plate 61 through the strip-shaped through hole 63. Finally, the connecting plate 622 of the buffer member 62 is connected to the machine shell 3.
[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A single-girder gantry crane, comprising a gantry crane body, the gantry crane body includes a main girder, an I-shaped track is installed on the main girder, an electric hoist capable of moving along the I-shaped track is installed on the I-shaped track, and the electric hoist includes a drum device, a steel wire rope and a hook, and is characterized in that: Both ends of the drum device are fixedly covered with casings located below the I-shaped track. Both ends of the top surface of the casing extend outside the I-shaped track and are fixedly connected to vertically distributed vertical plates. Anti-falling plates are fixedly connected to the sides of the vertical plates close to the I-shaped track, and track cleaning devices are installed on the outer sides of the vertical plates. The track cleaning device includes a connecting rod. One end of the connecting rod is detachably and fixedly connected to the vertical plate, and the other end of the connecting rod is located outside the vertical plate and is fixedly connected to a brush mounting seat. A cleaning brush capable of cleaning the I-shaped track is installed on the side of the brush mounting seat away from the connecting rod.
2. The single-girder gantry crane according to claim 1, characterized in that: One end of the connecting rod away from the brush mounting seat is located on the side of the vertical plate close to the I-shaped track, and a threaded rod perpendicular to the connecting rod is threadedly connected to this end of the connecting rod. The end of the threaded rod away from the connecting rod penetrates the vertical plate, and locking nuts are sleeved and threadedly connected on the threaded rods on both sides of the vertical plate. The locking nuts are respectively abutted against the vertical plate.
3. The single-girder gantry crane according to claim 1, characterized in that: An over-travel protection device located directly below the electric hoist is installed between the bottoms of the two casings. The steel wire rope passes through the over-travel protection device, and the hook is located below the over-travel protection device.
4. A single-girder gantry crane according to claim 3, characterized in that: The over-travel protection device includes a moving plate horizontally arranged directly below the electric hoist. Buffer members that can be telescoped in the vertical direction are installed between the four corners of the moving plate and the casing. A strip-shaped through hole is vertically opened on the moving plate, and the steel wire rope passes through the moving plate through the strip-shaped through hole. The hook is located below the moving plate.
5. A single-girder gantry crane according to claim 4, characterized in that: Each of the buffer members includes a vertically distributed telescopic rod. The top end of the telescopic rod is fixedly connected to a connecting plate and is detachably and fixedly connected to the casing through the connecting plate. The bottom end of the telescopic rod is fixedly connected to the moving plate, and a spring is sleeved on the telescopic rod. The two ends of the spring are respectively connected to the connecting plate and the moving plate.
6. The single-girder gantry crane according to claim 5, characterized in that: The moving plate is of a split structure. The moving plate includes two oppositely arranged movable plates. A U-shaped through hole is vertically opened on each movable plate, and a strip-shaped through hole can be formed between the two U-shaped through holes; Two plug-in blocks are fixedly connected to the opposite side of one of the movable plates, and two plug-in grooves opposite to the positions of the plug-in blocks are opened on the opposite side of the other movable plate, and the two movable plates are connected by connecting bolts.