Crane lifting mechanism
By designing wall beams, slide rails, bridges, small frames and lifting mechanisms in gantry cranes, combined with chain reels and limit slides, the problems of slings and height occupation are solved, and the cargo is highly confined in height space is realized Stable improvement and safe transportation in the
Patent Information
- Application Number
- CN202411447193.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2024-12-10
AI Technical Summary
When existing gantry cranes are installed in limited height spaces, slings cause cargo to shake, and traditional guide mechanisms occupy too much height space, making it difficult to use effectively in a height-constrained environment.
A crane lifting mechanism including wall beams, slide rails, bridge frames, small frames and lifting mechanisms was designed. The rollers drive the bridges to move through the mobile motor, and the chain reels and limit slides are used to achieve compact lifting and stable storage of goods. , and fix the goods through a zigzag support rod to prevent shaking.
It reduces the overall height of the crane, improves adaptability and stability in small spaces, ensures the safety and smoothness of cargo transportation, and avoids safety accidents caused by slings.
Smart Images
Figure CN119100249A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of crane hoisting, and in particular relates to a crane lifting mechanism. Background Art
[0002] Gantry cranes, also known as gantry cranes or bridge cranes, are common lifting equipment widely used in logistics, manufacturing, construction sites, ports and docks. The characteristic of this crane is that it has a door-shaped structure, and its main structure is supported by two legs, the lower ends of which are connected by a crossbeam to form a "door"-shaped frame. A crane beam or trolley is installed under the top crossbeam, which can move back and forth on the crossbeam to achieve the lifting and handling of materials. The design purpose of this crane is to improve the efficiency of material handling and reduce the intensity of human labor;
[0003] This type of crane has obvious advantages, including: stable structure, due to its portal structure, it can bear large loads; flexible movement, it can move along the track through the wheels at the bottom to cover a larger working area; strong adaptability, it can be customized to different specifications and configurations according to different usage requirements; wide application, suitable for various outdoor and indoor environments, especially when heavy objects need to be handled or long-distance transportation;
[0004] Its disadvantages are also quite obvious, including: the requirements for installation space. Due to regulatory requirements, building structure performance limitations, construction costs and other factors, the roof height of existing factories and the floor height of industrial buildings are strictly limited. When using installation cranes to upgrade and renovate production lines and warehouses in this environment, it is necessary to consider the height space limitations of the overall height of the crane;
[0005] The slings shake during the movement of the trolley, causing the hoisted goods to shake. If a rigid vertical column is added to the trolley for guiding and limiting, the rigid column will occupy a height space equivalent to its length. In addition to rigid columns, the vertical guide mechanism can also use telescopic mechanisms in the form of multi-section guide rails, scissors forks, etc., but there is still a problem of occupying more vertical height space than the height of the transported goods. Both of the above methods cannot be well installed and used within the limited height space. Summary of the invention
[0006] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a crane lifting mechanism.
[0007] The technical solution adopted to solve the above technical problems is: a crane lifting mechanism, including wall beams, the wall beams are arranged correspondingly, and slide rails are fixedly arranged above the wall beams, the slide rails are arranged correspondingly, a bridge is arranged between the slide rails, a trolley frame is arranged above the outside of the bridge, a lifting mechanism is arranged inside the trolley frame, a picking mechanism is arranged inside the trolley frame, the lifting mechanism is connected to the picking mechanism, the lifting mechanism lifts the picking mechanism, and the picking mechanism stores the goods.
[0008] Through the above technical solution, the goods are placed inside the pickup mechanism, and the goods and the pickup mechanism are lifted together by the lifting mechanism, and then the lifting mechanism, the goods and the pickup mechanism can be moved together by the bridge frame.
[0009] Furthermore, the bridge is placed above the slide rail, rollers are installed at the four corners of the bridge, the rollers are located inside the slide rail, mobile motors are arranged at the four corners of the bridge, the output end of the mobile motor is connected to the rollers, and the bridge moves above the slide rail via the rollers.
[0010] Through the above technical solution, when the mobile motor is running, it will drive the roller to rotate. After the roller rotates, it will drive the bridge frame and the components thereon to move together.
[0011] Furthermore, driving shafts are provided on both sides above the trolley frame, and a connecting shaft is provided above the trolley frame. Both ends of the connecting shaft are connected to the driving shaft, one end of the connecting shaft is fixedly connected to a lifting motor, and the lifting motor drives the connecting shaft to rotate, and a clamping strip is fixedly connected to the outside of the driving shaft.
[0012] Furthermore, the lifting mechanism includes a chain reel fixedly connected to the trolley frame, and the chain reel is symmetrically located at the four corners inside the trolley frame. A chain driving wheel is provided at the upper end of the chain reel at the corners close to each other, and a lifting chain is provided outside the chain driving wheel. The lifting chain is located inside the chain reel, and a rod hole is opened in the middle part of the chain driving wheel, and a groove is provided inside the rod hole, and the clamping strip outside the drive shaft is located inside this groove.
[0013] Through the above technical solution, after the lifting motor is running, it will drive the connecting shaft to rotate, and when the connecting shaft rotates, it will drive the two driving shafts to rotate, and when the driving shaft rotates, it will drive the external chain drive wheel to rotate.
[0014] Further, limiting flanges are provided on both sides of the chain driving wheel. The limiting flanges are arranged in a circular shape. Meshing holes are provided inside the limiting flanges. The lifting chain is composed of multiple chain links. One end inside the chain link is provided with a pin hole. A chain pin is provided at one end of the chain link away from the pin hole. Both ends of the chain pin are connected with end heads. The end heads are located outside the chain link. The chain driving wheel and the lifting chain are connected through the end heads and the meshing holes. The end heads are located inside the meshing holes. A convex block is fixedly connected to the outer surface of the chain link.
[0015] Through the above technical solution, during the rotation of the chain driving wheel, the lifting chain wound around its outside will be driven to move.
[0016] Further, a return chute is provided in the middle of the inside of the chain reel. A chain opening is provided above the inside of the chain reel. A limiting chute is provided on one side of the outside of the chain reel. The lifting chain is stored inside the return chute. The lifting chain enters the limiting chute through the chain opening. The chain driving wheel is located between the chain opening and the limiting chute.
[0017] Through the above technical solution, when the lifting chain moves outside the chain driving wheel, due to the different rotation directions of the chain driving wheel, the lifting chain will retract into the chain reel or be released from the inside of the chain reel.
[0018] Further, block grooves are provided inside the return chute and the limiting chute. The chain link is fitted inside the return chute and the limiting chute through the convex block. The convex block on the surface of the chain link is located inside the block groove.
[0019] Through the above technical solution, the lifting chain is fitted inside the return chute and the limiting chute due to the convex blocks on the outside of each chain link, which can ensure that the lifting chain will not be easily misaligned when being released or contracted.
[0020] Further, the goods picking mechanism includes a support rod connected to the lifting chain. A goods bearing shelf is fixedly connected to the lower end of the outside of the support rod. Goods are placed above the outside of the goods bearing shelf. The support rods are located at the four corners of the upper surface of the outside of the goods bearing shelf.
[0021] Through the above technical solution, during the process of the lifting chain contracting into the return chute, the goods picking mechanism and the goods will be driven to rise together. When the lifting chain is released from the inside of the return chute, the goods picking mechanism and the goods will be released and lowered.
[0022] Further, the support rod is in a "C" shape. The distance between the intervals inside the support rod is the thickness of the chain reel. The support rod is arranged corresponding to the chain reel.
[0023] Through the above technical solution, when the picking mechanism and the goods are driven up to the highest point, due to the special shape of the support rod, the chain reel will be engaged into the inside of the support rod, so that the picking mechanism and the goods will not shake easily, thereby ensuring the stability of the picking mechanism and the goods transportation.
[0024] The beneficial effects of the present invention are as follows: (1) The present invention adopts a compact structural design and a method of winding up the lifting chain to collect and release the goods, thereby reducing the overall height of the crane, so that the present invention can better adapt to factories or buildings with smaller top space, greatly improving the practicality of the device; (2) The present invention can lift or lower the goods through the design of the lifting mechanism, and the lifting chain inside the lifting mechanism can be stored and released, greatly reducing the vertical height space occupied. At the same time, the design of the limit slide can ensure that the lifting chain will not tilt during the process of collection and release, and each link of the lifting chain is provided with a protrusion, which can ensure that the lifting chain as a whole will be smoother during the process of collection and release and will not be easily blocked; (3) The design of the internal U-shaped support rod of the present invention can ensure that the picking mechanism can be fixed on the outside of the chain reel after rising, so that when the bridge frame is moved, it will not shake easily like a sling, and the hoisted goods will be more stable and less prone to safety accidents, greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a first viewing angle diagram of the overall structure of the present invention;
[0026] Figure 2 It is a second viewing angle diagram of the overall structure of the present invention;
[0027] Figure 3 It is a schematic diagram of the structure of the bridge frame, the trolley frame and the pickup mechanism in the present invention;
[0028] Figure 4 It is a schematic diagram of the structure of the small vehicle frame, the lifting mechanism and the cargo picking mechanism of the present invention;
[0029] Figure 5 It is a schematic diagram of the structure of the small vehicle frame, connecting shaft and driving shaft of the present invention;
[0030] Figure 6 It is a half-section schematic diagram of the chain reel, lifting chain and chain driving wheel in the present invention;
[0031] Figure 7 It is a cross-sectional view of the chain reel and other structures in the present invention;
[0032] Figure 8 It is a schematic diagram of the structure of the chain drive wheel, etc. in the present invention;
[0033] Fig. 9 It is a schematic diagram of the structure of chain links etc. in the present invention.
[0034] : 100, slide rail; 101, wall beam; 200, trolley frame; 300, lifting mechanism; 301, chain driving wheel; 302, chain reel; 303, lifting chain; 304, connecting shaft; 305, lifting motor; 306, driving shaft; 307, circular slide; 308, limiting slide; 309, chain mouth; 310, limiting flange; 311, engaging hole; 312, rod hole; 313, protrusion; 314, pin hole; 315, chain link; 316, end; 317, chain pin; 400, picking mechanism; 401, goods; 402, shelf; 403, support rod; 500, bridge frame; 501, roller; 502, moving motor. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0036] like Figure 1 - Fig. 9 As shown, a crane lifting mechanism of this embodiment includes a wall beam 101, and the wall beam 101 is correspondingly arranged. A slide rail 100 is fixedly arranged above the wall beam 101, and the slide rail 100 is correspondingly arranged, so that a bridge frame 500 can be placed above the slide rail 100, a bridge frame 500 is arranged between the slide rails 100, a trolley frame 200 is arranged above the outside of the bridge frame 500, a lifting mechanism 300 is arranged inside the trolley frame 200, and a picking mechanism 400 is arranged inside the trolley frame 200, the lifting mechanism 300 is connected to the picking mechanism 400, the lifting mechanism 300 lifts or releases the picking mechanism 400, and the picking mechanism 400 stores the goods 401.
[0037] like Figure 1 - Figure 3 As shown, the bridge frame 500 is placed above the slide rail 100, and rollers 501 are installed at the four corners of the bridge frame 500, so that when the rollers 501 rotate, they will drive the bridge frame 500 to move. The rollers 501 are located inside the slide rail 100, and moving motors 502 are arranged at the four corners of the bridge frame 500. The moving motor 502 is matched with the rollers 501, and the output end of the moving motor 502 is connected to the rollers 501, and the bridge frame 500 moves above the slide rail 100 through the rollers 501.
[0038] like Figure 1 - Figure 5As shown, driving shafts 306 are arranged on both sides above the trolley frame 200, and a connecting shaft 304 is arranged above the trolley frame 200. Both ends of the connecting shaft 304 are connected to the driving shaft 306. Gears are arranged on both ends of the outside of the connecting shaft 304. Similarly, gears are also arranged at the end of the driving shaft 306 close to the connecting shaft 304, so that when the connecting shaft 304 rotates, it can drive the two driving shafts 306 to rotate together. One end of the connecting shaft 304 is fixedly connected to a lifting motor 305, and the lifting motor 305 drives the connecting shaft 304 to rotate. A clamping strip is fixedly connected to the outside of the driving shaft 306. Through the setting of the clamping strip, the driving shaft 306 can drive the chain driving wheel 301 to rotate.
[0039] like Figure 1 - Figure 4 , Figure 6 - Figure 7 As shown, the lifting mechanism 300 includes a chain reel 302 fixedly connected to the trolley frame 200, and the symmetrical chain reels 302 are located at the four corners inside the trolley frame 200. A chain driving wheel 301 is provided at the upper end of the chain reel 302 at the corners close to each other, and a lifting chain 303 is provided outside the chain driving wheel 301. The lifting chain 303 is located inside the chain reel 302, so that the lifting chain 303 can be released or retracted. A rod hole 312 is opened in the middle part of the chain driving wheel 301, and a groove is provided inside the rod hole 312. At the same time, the clamping strip outside the driving shaft 306 is located inside the groove. In this way, with the cooperation of the clamping strip and the groove, when the driving shaft 306 rotates, the chain driving wheel 301 will also rotate together.
[0040] like Figure 8 - Fig. 9 As shown, the chain driving wheel 301 is provided with limit flanges 310 on both sides, and the limit flanges 310 are arranged in a circumferential manner, so that the chain driving wheel 301 can continuously engage and drive the chain link 315 during the rotation process, and the limit flange 310 is provided with an engagement hole 311 inside. The lifting chain 303 is composed of a plurality of chain links 315 connected head to tail, and a pin hole 314 is provided at one end of the chain link 315. A chain pin 317 is provided at the end, and both ends of the chain pin 317 are connected to an end head 316, and the end head 316 is located outside the chain link 315. The chain driving wheel 301 and the lifting chain 303 are connected to the meshing hole 311 through the end head 316, and the end head 316 is located inside the meshing hole 311. Pin holes 314 are provided at both ends of the chain link 315. Only in this way can the chain link 315 be connected end to end, and a protrusion 313 is fixedly connected to the outer surface of the chain link 315.
[0041] like Figure 7As shown in the figure, a rectangular slideway 307 is provided in the middle inside the chain reel 302. The rectangular slideway 307 serves to store and lift the chain 303. A chain opening 309 is provided above the inside of the chain reel 302. The lifting chain 303 enters and exits through the chain opening 309. A limiting slideway 308 is provided on one side outside the chain reel 302. The setting of the limiting slideway 308 can ensure that the lifting chain 303 will not be easily misaligned during the lifting and lowering process. The lifting chain 303 is stored inside the rectangular slideway 307. The lifting chain 303 enters the limiting slideway 308 through the chain opening 309. The chain driving wheel 301 is located between the chain opening 309 and the limiting slideway 308.
[0042] Block grooves are provided inside the rectangular slideway 307 and the limiting slideway 308. The link 315 is fitted inside the rectangular slideway 307 and the limiting slideway 308 through the convex block 313. The convex block 313 on the surface of the link 315 is located inside the block groove. In this way, the lifting chain 303 composed of the links 315 will not be easily blocked inside the rectangular slideway 307 or the limiting slideway 308.
[0043] As Figure 1 - Figure 4 As shown in the figure, the goods picking mechanism 400 includes a support rod 403 connected to the lifting chain 303. A goods carrier 402 is fixedly connected to the lower end outside the support rod 403. Goods 401 are placed above the outside of the goods carrier 402. The support rod 403 is located at the four corners of the upper surface outside the goods carrier 402.
[0044] As Figure 1 - Fig. 9 As shown in the figure, the support rod 403 is in a "C" shape. The distance between the inside of the support rod 403 is the thickness of the chain reel 302. In this way, the chain reel 302 can just be stuck into the "C"-shaped support rod 403. The support rod 403 and the chain reel 302 are arranged in correspondence. In this way, each chain reel 302 can be stuck into each support rod 403, so as to ensure the stability of the goods carrier 402 and prevent it from shaking easily.
[0045] The working principle of this embodiment is as follows. When using this device for work, first place the goods 401 to be transported above the goods carrier 402 and fix them.
[0046] Then, the lifting motor 305 is started to operate. When the lifting motor 305 is running, it will drive the connecting shaft 304 to rotate, and the driving shaft 306 connected to the connecting shaft 304 will also be driven to rotate. When the driving shaft 306 rotates, it will drive the chain driving wheel 301 to rotate through the cooperation of the card strip and the groove. During the rotation of the chain driving wheel 301, it will drive the end head 316 to move through the meshing hole 311 inside it, and the end head 316 is arranged inside the chain link 315. In this way, during the movement of the end head 316, it will drive the chain link 315 to move together, and so on. When each chain link 315 passes through the limiting slide 308 and the chain mouth 309 and is stored in the circular slide 307, the lifting chain 303 will be stored, thereby driving the goods 401 and the shelf 402 to rise;
[0047] When the goods 401 and the shelf 402 are stored at the highest position, the support rod 403 will be engaged with the outside of the chain reel 302, so as to ensure that the shelf 402 will not shake easily;
[0048] Finally, the moving motor 502 is started to drive the roller 501 to rotate. When the roller 501 rotates inside the slide rail 100, the bridge frame 500 will drive the trolley frame 200 and the lifting mechanism 300 and the picking mechanism 400 inside it to move.
[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.
Claims
1. A crane lifting mechanism, comprising a wall beam (101), characterized in that: The wall beams (101) are arranged in a corresponding manner, a slide rail (100) is fixedly arranged above the wall beams (101), the slide rails (100) are arranged in a corresponding manner, a bridge frame (500) is arranged between the slide rails (100), a trolley frame (200) is arranged above the outside of the bridge frame (500), a lifting mechanism (300) is arranged inside the trolley frame (200), a cargo pickup mechanism (400) is arranged inside the trolley frame (200), the lifting mechanism (300) is connected to the cargo pickup mechanism (400), the lifting mechanism (300) lifts the cargo pickup mechanism (400), and the cargo pickup mechanism (400) stores the cargo (401).
2. A crane lifting mechanism according to claim 1, characterized in that: The bridge frame (500) is placed above the slide rail (100), rollers (501) are installed at the four corners of the bridge frame (500), the rollers (501) are located inside the slide rail (100), and moving motors (502) are arranged at the four corners of the bridge frame (500), the output end of the moving motor (502) is connected to the rollers (501), and the bridge frame (500) moves above the slide rail (100) through the rollers (501).
3. A crane lifting mechanism according to claim 1, characterized in that: A driving shaft (306) is arranged on both sides above the trolley frame (200), a connecting shaft (304) is arranged above the trolley frame (200), both ends of the connecting shaft (304) are connected to the driving shaft (306), one end of the connecting shaft (304) is fixedly connected to a lifting motor (305), the lifting motor (305) drives the connecting shaft (304) to rotate, and a clamping strip is fixedly connected to the outside of the driving shaft (306).
4. A crane lifting mechanism according to claim 3, characterized in that: The lifting mechanism (300) comprises a chain reel (302) fixedly connected to the trolley frame (200), the chain reel (302) being symmetrically located at four corners inside the trolley frame (200), a chain driving wheel (301) being arranged at the upper end of the chain reel (302) at mutually adjacent corners, a lifting chain (303) being arranged outside the chain driving wheel (301), the lifting chain (303) being located inside the chain reel (302), a rod hole (312) being opened in the middle of the chain driving wheel (301), and a groove being arranged inside the rod hole (312), and a clamping strip outside the driving shaft (306) being located inside the groove.
5. A crane lifting mechanism according to claim 4, characterized in that: On both sides of the chain drive wheel (301), there are provided limit flanges (310). The limit flanges (310) are arranged in a circular shape. Inside the limit flanges (310), there are engagement holes (311). The lifting chain (303) is composed of multiple chain links (315). At one end inside the chain link (315), there is a pin hole (314). At the end of the chain link (315) far from the pin hole (314), there is a chain pin (317). Both ends of the chain pin (317) are connected with end heads (316). The end heads (316) are located outside the chain link (315). The chain drive wheel (301) and the lifting chain (303) are connected through the end heads (316) and the engagement holes (311). The end heads (316) are located inside the engagement holes (311). On the outer surface of the chain link (315), there is a fixed convex block (313).
6. A crane lifting mechanism according to claim 5, characterized in that: In the middle inside the chain spool (302), there is a circular slideway (307). Above the inside of the chain spool (302), there is a chain opening (309). On one side outside the chain spool (302), there is a limit slideway (308). The lifting chain (303) is stored inside the circular slideway (307). The lifting chain (303) enters the limit slideway (308) through the chain opening (309). The chain drive wheel (301) is located between the chain opening (309) and the limit slideway (308).
7. A crane lifting mechanism according to claim 6, characterized in that: In the circular slideway (307) and the limit slideway (308), there are block grooves. The chain link (315) is fitted inside the circular slideway (307) and the limit slideway (308) through the convex block (313). The convex block (313) on the surface of the chain link (315) is located inside the block groove.
8. A crane lifting mechanism according to claim 4, characterized in that: The goods picking mechanism (400) includes a support rod (403) connected to the lifting chain (303). At the lower end outside the support rod (403), there is a goods bearing shelf (402). Above the outside of the goods bearing shelf (402), there is goods (401). The support rod (403) is located at the four corners of the upper surface outside the goods bearing shelf (402).
9. A crane lifting mechanism according to claim 8, characterized in that: The support rod (403) is in a "C" shape. The internal spacing distance of the support rod (403) is the thickness of the chain spool (302). The support rod (403) and the chain spool (302) are arranged in correspondence.