Counterweight mechanism of cantilever crane

Abstract

The invention discloses a counterweight mechanism of a cantilever crane, which belongs to the technical field of cranes and comprises a water tank component, a water inlet pipe is mounted on one side of the water tank component, a water outlet pipe is mounted on one side, far away from the water inlet pipe, of the water tank component, two lifting lugs are mounted above the water tank component, and a plurality of moving components are arranged below the water tank component. The water tank assembly is connected with the multiple moving assemblies through auxiliary counterweight devices. By arranging the auxiliary counterweight device, the structure can carry out auxiliary counterweight through cooperation of structures such as a counterweight block when needed, so that the requirements of lack of water sources around and the like are better met, and the working capacity of the mechanism is improved; by arranging the water receiving and conveying device, the structure can recycle and store water discharged by the water outlet pipe through cooperation of a water storage tank and other structures when needed, so that waste of water resources is reduced, and the practicability of the mechanism is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular relates to a counterweight mechanism of a cantilever crane. Background Art

[0002] A crane is a multi-action lifting machine that can lift heavy objects vertically and carry them horizontally within a certain range. It is also called an overhead crane, overhead crane, or crane.

[0003] Chinese patent application No. 201620244798.9 discloses a special counterweight device for cranes, including a water tank and a frame, wherein a fixed seat is symmetrically provided at the lower end of the frame, a wheel is installed on the fixed seat, a transverse rib plate is provided at the lower end of the fixed seat, a convex block is provided at the end of the transverse rib plate, a screw is installed on the convex block, a hexagonal head is provided at the upper end of the screw, a bearing plate is provided at the lower end of the screw, a lifting frame is provided at the upper end of the frame, and a lifting lug is installed at the upper end of the lifting frame. The screw with a hexagonal head and a bearing plate provided in the present invention helps operators to use tools to rotate the screw, and also helps to increase the bearing capacity of the frame. By providing a fixed seat with a transverse rib plate and a lifting frame with a lifting lug, it helps to increase various modes of transportation such as lifting. By providing a convex block with a screw and a fixed seat with a wheel installed, it helps to realize the movement and fixation of the frame.

[0004] 1. The above-mentioned disclosed patent has the problem that other methods cannot be used for balancing weight when there is a lack of water source around, thereby reducing the working capacity of the device; 2. The above-mentioned disclosed patent has the problem that the water discharged from the outlet pipe cannot be recovered and stored and it is inconvenient to return the discharged water to the water tank when needed, thereby reducing the practicality of the device. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a cantilever crane counterweight mechanism, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cantilever crane counterweight mechanism, comprising a water tank assembly, a water inlet pipe is installed on one side of the water tank assembly, a water outlet pipe is installed on the side of the water tank assembly away from the water inlet pipe, two lifting ears are installed above the water tank assembly, a plurality of movable assemblies are arranged below the water tank assembly, the water tank assembly and the plurality of movable assemblies are connected by an auxiliary counterweight device, and a water receiving and conveying device is arranged on the outer side of the water outlet pipe.

[0007] Preferably, the auxiliary counterweight device includes a connecting plate, a limit frame, an electric telescopic rod, a counterweight block, a limit block and a connecting frame, a connecting frame is installed on one side of the multiple moving components close to the water tank component, a connecting plate is arranged between the connecting frame and the water tank component, two electric telescopic rods are installed between the inner bottom surface of the connecting frame and the outer bottom surface of the connecting plate, a plurality of limit frames are installed on the inner side of the connecting frame and between the two electric telescopic rods, a counterweight block is arranged on the inner side of the limit frame, and a plurality of limit blocks are installed below the connecting plate and respectively located on the inner side of the top of each counterweight block.

[0008] Preferably, the shape and size of the inner side of the top of the counterweight block are the same as the shape and size of the outer side of the limiting block, and the inner side of the limiting frame and the two sides of the counterweight block are in close contact with each other.

[0009] Preferably, the auxiliary counterweight device further comprises a universal wheel, and a plurality of universal wheels are installed below the counterweight block.

[0010] Preferably, the auxiliary counterweight device further includes a first buckle, and the water tank assembly and the connecting plate are connected via the first buckle.

[0011] Preferably, the water receiving and water conveying device includes a water tank, a connecting pipe and moving wheels, a connecting pipe is provided on the side of the water outlet pipe away from the water tank assembly, a water tank is installed below the connecting pipe, and a plurality of moving wheels are installed below the water tank.

[0012] Preferably, the water receiving and water conveying device also includes a second buckle and a mounting frame, and the mounting frame is installed above the water storage tank and outside the water outlet pipe, and the water tank assembly and the mounting frame are connected by the second buckle.

[0013] Preferably, the water receiving and water delivery device further comprises a water delivery pump and a water delivery pipe, the water delivery pump is installed on a side of the water storage tank away from the multiple movable components, and the water delivery pipe is installed on a side of the water delivery pump away from the water storage tank.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides an auxiliary counterweight device so that the structure can be assisted in counterweighting through the cooperation of structures such as counterweight blocks when needed, so as to better cope with the needs when there is a lack of water sources around, thereby improving the working capacity of the mechanism.

[0016] 2. The present invention provides a water receiving and water conveying device so that the structure can recycle and store the water discharged from the water outlet pipe through the cooperation of structures such as a water storage tank when needed, thereby reducing the waste of water resources and further improving the practicality of the mechanism.

[0017] 3. The present invention provides a water receiving and water delivery device so that the structure can deliver the water discharged from the water outlet pipe back to the water tank assembly through the cooperation of structures such as a water delivery pump when needed, thereby better meeting the needs of work and further improving the practicality of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a front view of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the auxiliary counterweight device of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the water receiving and water conveying device of the present invention.

[0022] In the figure: 1. water inlet pipe; 2. moving assembly; 3. auxiliary counterweight device; 31. connecting plate; 32. limit frame; 33. universal wheel; 34. electric telescopic rod; 35. first buckle; 36. counterweight block; 37. limit block; 38. connecting frame; 4. water receiving and water delivery device; 41. water storage tank; 42. water delivery pump; 43. water delivery pipe; 44. second buckle; 45. mounting frame; 46. connecting pipe; 47. moving wheel; 5. water outlet pipe; 6. lifting ear; 7. water tank assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-4 The present invention provides the following technical solutions: a cantilever crane counterweight mechanism, comprising a water tank assembly 7, a water inlet pipe 1 is installed on one side of the water tank assembly 7, a water outlet pipe 5 is installed on the side of the water tank assembly 7 away from the water inlet pipe 1, two lifting ears 6 are installed above the water tank assembly 7, a plurality of movable assemblies 2 are arranged below the water tank assembly 7, the water tank assembly 7 and the plurality of movable assemblies 2 are connected by an auxiliary counterweight device 3, and a water receiving and conveying device 4 is arranged on the outer side of the water outlet pipe 5.

[0026] Specifically, the auxiliary counterweight device 3 includes a connecting plate 31, a limit frame 32, an electric telescopic rod 34, a counterweight block 36, a limit block 37 and a connecting frame 38. A connecting frame 38 is installed on one side of the multiple moving components 2 close to the water tank component 7. A connecting plate 31 is arranged between the connecting frame 38 and the water tank component 7. Two electric telescopic rods 34 are installed between the inner bottom surface of the connecting frame 38 and the outer bottom surface of the connecting plate 31. A plurality of limit frames 32 are installed on the inner side of the connecting frame 38 and between the two electric telescopic rods 34. A counterweight block 36 is arranged on the inner side of the limit frame 32. A plurality of limit blocks 37 are installed below the connecting plate 31 and respectively on the inner side of the top of each counterweight block 36.

[0027] By adopting the above technical solution, the structure can be assisted in counterweighting through the cooperation of structures such as the counterweight block 36 when needed, so as to better cope with the needs when there is a lack of water sources around.

[0028] Specifically, the shape and size of the inner side of the top of the counterweight block 36 are the same as the shape and size of the outer side of the limiting block 37 , and the inner side of the limiting frame 32 and the two sides of the counterweight block 36 are in close contact with each other.

[0029] By adopting the above technical solution, normal cooperation between the limit block 37 and the limit frame 32 and the counterweight block 36 is ensured.

[0030] Specifically, the auxiliary counterweight device 3 further includes a universal wheel 33 , and a plurality of universal wheels 33 are installed below the counterweight block 36 .

[0031] By adopting the above technical solution, the difficulty of pushing or pulling out the counterweight block 36 is reduced.

[0032] Specifically, the auxiliary counterweight device 3 further includes a first buckle 35 , and the water tank assembly 7 and the connecting plate 31 are connected via the first buckle 35 .

[0033] By adopting the above technical solution, the staff can connect or separate the water tank assembly 7 and the connecting plate 31 when necessary.

[0034] When this embodiment is used, when the cantilever crane needs to use the mechanism for counterweight work, the mechanism is moved and fixed at the work site through the various moving components 2, and then enough water is added to the water tank component 7 through the water inlet pipe 1 to adjust the weight of the mechanism. When auxiliary counterweight is needed due to insufficient water source or other reasons, the two electric telescopic rods 34 in the auxiliary counterweight device 3 are started, thereby driving the connecting plate 31 and each limit block 37 to rise, and then the appropriate number of counterweight blocks 36 are sent to each limit frame 32 in the connecting frame 38, and the universal wheel 33 assists the movement, and then the two electric telescopic rods 34 are started, thereby driving each limit block 37 to insert into each counterweight block 36, and the counterweight work is completed. The lifting ear 6 facilitates lifting, and the first buckle 35 plays a role in connecting and installing.

[0035] Example 2

[0036] The difference between this embodiment and embodiment 1 is that the water receiving and water delivery device 4 includes a water tank 41, a connecting pipe 46 and moving wheels 47, a connecting pipe 46 is provided on the side of the water outlet pipe 5 away from the water tank assembly 7, a water tank 41 is installed below the connecting pipe 46, and a plurality of moving wheels 47 are installed below the water tank 41.

[0037] By adopting the above technical solution, the structure can recycle and store the water discharged from the water outlet pipe 5 through the cooperation of the water storage tank 41 and other structures when needed, thereby reducing the waste of water resources.

[0038] Specifically, the water receiving and water conveying device 4 also includes a second buckle 44 and a mounting frame 45. The mounting frame 45 is installed above the water storage tank 41 and outside the water outlet pipe 5. The water tank assembly 7 and the mounting frame 45 are connected via the second buckle 44.

[0039] By adopting the above technical solution, the staff can load and unload the water tank 41 and other structures when necessary.

[0040] Specifically, the water receiving and water delivery device 4 also includes a water delivery pump 42 and a water delivery pipe 43. The water delivery pump 42 is installed on the side of the water storage tank 41 away from the multiple moving components 2, and the water delivery pipe 43 is installed on the side of the water delivery pump 42 away from the water storage tank 41.

[0041] By adopting the above technical solution, the structure can send the water discharged from the water outlet pipe 5 back to the water tank assembly 7 through the cooperation of the water delivery pump 42 and other structures when needed, thereby better meeting the work needs.

[0042] When this embodiment is used, when it is necessary to discharge the water in the water tank assembly 7, the water is discharged through the water outlet pipe 5, and then the water passes through the connecting pipe 46 in the water receiving and water conveying device 4 connected to the water outlet pipe 5 and enters the water storage tank 41, so that the water is recovered and stored. When it is necessary to return the water to the water tank assembly 7, the second buckle 44 is manipulated to connect the mounting frame 45 with the water tank assembly 7, and then the water tank assembly 7 is pushed so that it and the structure thereon are moved by the moving wheel 47 until the end of the water conveying pipe 43 is aligned with the water inlet pipe 1, and the water conveying pump 42 is started. The water passes through the water conveying pump 42 and the water conveying pipe 43 into the water inlet pipe 1, and then enters the water tank assembly 7, so that the water is returned to the water tank assembly 7.

[0043] The structures and principles of the water inlet pipe 1, the mobile component 2 consisting of a fixed seat, wheels, transverse ribs, protrusions, screws, hexagonal heads and a bearing plate, the water outlet pipe 5, the lifting lug 6, and the water tank component 7 consisting of a water tank, a transparent liquid level plate and a lifting frame in the present invention have been disclosed in a special counterweight device for a crane disclosed in Chinese patent application No. 201620244798.9. Its working principle is that the operator moves the frame to a suitable position, and then uses a wrench to rotate the screw and fix the frame to carry out the crane counterweight work. The screw with a hexagonal head and a bearing plate helps the operator to use tools to rotate the screw, and also helps to increase the bearing capacity of the frame. By setting a fixed seat with a transverse rib plate and a lifting frame equipped with lifting lugs, it helps to increase various transportation modes such as lifting. By setting a protrusion with a screw and a fixed seat equipped with wheels, it helps to realize the movement and fixation of the frame. It has a simple structure, is easy to operate, and is economical and practical.

[0044] The working principle and use process of the present invention are as follows: when the cantilever crane needs to use the mechanism for counterweight work, the mechanism is moved and fixed at the work site through the various moving components 2, and then sufficient water is added to the water tank component 7 through the water inlet pipe 1 to adjust the weight of the mechanism. When auxiliary counterweight is needed due to insufficient water source or other reasons, the two electric telescopic rods 34 in the auxiliary counterweight device 3 are started, thereby driving the connecting plate 31 and each limit block 37 to rise, and then the appropriate number of counterweight blocks 36 are sent into each limit frame 32 in the connecting frame 38, the universal wheel 33 assists the movement, and then the two electric telescopic rods 34 are started, thereby driving each limit block 37 to insert each counterweight block 36, the counterweight work is completed, and the lifting lug 6 plays a role in facilitating lifting, and the first buckle 35 plays a role in connecting and installing; when the water in the water tank assembly 7 needs to be discharged, the water is discharged through the water outlet pipe 5, and then the water passes through the connecting pipe 46 in the water receiving and water conveying device 4 connected to the water outlet pipe 5 and enters the water storage tank 41, so that the water is recovered and stored. When the water needs to be sent back to the water tank assembly 7, the second buckle 44 is operated to connect the mounting frame 45 with the water tank assembly 7, and then the water tank assembly 7 is pushed so that it and the structure above it are moved by the moving wheel 47 until the end of the water conveying pipe 43 is aligned with the water inlet pipe 1, and the water conveying pump 42 is started. The water passes through the water conveying pump 42 and the water conveying pipe 43 into the water inlet pipe 1, and then enters the water tank assembly 7, so that the water is sent back to the water tank assembly 7.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever crane counterweight mechanism, comprising a water tank assembly, characterized in that: A water inlet pipe is installed on one side of the water tank assembly, a water outlet pipe is installed on the side of the water tank assembly away from the water inlet pipe, two lifting ears are installed above the water tank assembly, a plurality of movable components are arranged below the water tank assembly, the water tank assembly and the plurality of movable components are connected by an auxiliary counterweight device, and a water receiving and conveying device is arranged on the outside of the water outlet pipe.

2. A cantilever crane counterweight mechanism according to claim 1, characterized in that: The auxiliary counterweight device includes a connecting plate, a limit frame, an electric telescopic rod, a counterweight block, a limit block and a connecting frame. A connecting frame is installed on one side of multiple moving components close to the water tank component. A connecting plate is arranged between the connecting frame and the water tank component. Two electric telescopic rods are installed between the inner bottom surface of the connecting frame and the outer bottom surface of the connecting plate. Multiple limit frames are installed on the inner side of the connecting frame and between the two electric telescopic rods. A counterweight block is arranged on the inner side of the limit frame. Multiple limit blocks are installed below the connecting plate and respectively on the inner side of the top of each counterweight block.

3. A cantilever crane counterweight mechanism according to claim 2, characterized in that: The shape and size of the inner side of the top of the counterweight block are the same as the shape and size of the outer side of the limiting block, and the inner side of the limiting frame and the two sides of the counterweight block are closely attached to each other.

4. The cantilever crane counterweight mechanism according to claim 2, characterized in that: The auxiliary counterweight device also includes universal wheels, and a plurality of universal wheels are installed below the counterweight block.

5. The cantilever crane counterweight mechanism according to claim 2, characterized in that: The auxiliary counterweight device also includes a first buckle, and the water tank assembly and the connecting plate are connected via the first buckle.

6. The cantilever crane counterweight mechanism according to claim 1, characterized in that: The water receiving and water delivery device comprises a water storage tank, a connecting pipe and moving wheels. A connecting pipe is arranged on the side of the water outlet pipe away from the water tank assembly, a water storage tank is installed below the connecting pipe, and a plurality of moving wheels are installed below the water storage tank.

7. The cantilever crane counterweight mechanism according to claim 6, characterized in that: The water receiving and water delivery device also includes a second buckle and a mounting frame. The mounting frame is installed above the water storage tank and outside the water outlet pipe. The water tank assembly and the mounting frame are connected via the second buckle.

8. The cantilever crane counterweight mechanism according to claim 7, characterized in that: The water receiving and water delivery device also includes a water delivery pump and a water delivery pipe. The water delivery pump is installed on the side of the water storage tank away from the multiple moving components, and the water delivery pipe is installed on the side of the water delivery pump away from the water storage tank.

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