CN108706465B - Double-chain type crane - Google Patents
Double-chain type crane Download PDFInfo
- Publication number
- CN108706465B CN108706465B CN201810602457.8A CN201810602457A CN108706465B CN 108706465 B CN108706465 B CN 108706465B CN 201810602457 A CN201810602457 A CN 201810602457A CN 108706465 B CN108706465 B CN 108706465B
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- CN
- China
- Prior art keywords
- chain
- transmission module
- crane
- double
- advancing device
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention provides a double-chain crane, wherein a transmission module is a ratchet wheel type chain wheel double-chain transmission module and is fixed on a metal frame through a bearing, and a direct current motor for providing power for the transmission module is arranged laterally of the transmission module; the turning advancing device is arranged at the bottom of the metal frame, a stepping motor for providing power for the turning advancing device is connected to the turning advancing device, a remote control module is also connected to the turning advancing device, and a crane operator controls the stepping motor and the direct current motor through the remote control module; the rotary straight plate hook comprises a plate-shaped hoisting part, a long shaft and a short shaft, wherein the long shaft and the short shaft are respectively fixedly connected with the transmission module chain, the hoisting part is in clearance fit with the short shaft and is in rotary connection, a sliding block in clearance fit is sleeved on the hoisting part, and the long shaft is in clearance fit with the sliding block and is in rotary connection. The invention combines the mechanical principle of crane transmission with the electronic technology, has higher automation degree and convenient movement, thereby improving the working efficiency.
Description
Technical Field
The invention belongs to the field of hoisting machinery, and particularly relates to a double-chain type crane.
Background
With the improvement of the requirements on port logistics machinery, the port has higher requirements on the safety, reliability and stability of hoisting machinery, and domestic hoisting machinery develops towards the trend of automation and specialization. China hoisting machinery enterprises have the capacity of independently innovating the prior art and developing personalized products meeting the market requirements at home and abroad. At present, the number of product types in the hoisting machinery industry in China exceeds 1000, and new hoisting machinery equipment is continuously appeared. However, on the basis of the prior art, a large lifting space is provided, and the large lifting space is provided in many aspects such as how to improve the working efficiency of the crane, how to reduce the use of space resources, how to make the working process safer and more reliable, and the like.
Based on the background, the crane manufacture gradually tends to be intelligent, and some new cranes are produced at the same time. The operation of the existing crane is mostly manually controlled by an excellent crane driver, and the existing crane is mostly stacked one by one after being transported in a translational motion mode. This means that the existing hoisting operation has the disadvantages of high operation requirement and low working efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the double-chain crane can improve the working efficiency in the operation of horizontally conveying and stacking the lifted objects one by one.
The technical scheme adopted by the invention for solving the technical problems is as follows: a double chain crane is characterized in that: the device comprises a metal frame, a transmission module, a rotary straight plate hook and a turning advancing device; the transmission module is a ratchet wheel type chain wheel double-chain transmission module and is fixed on the metal frame through a bearing, and a direct current motor for providing power for the transmission module is arranged laterally of the transmission module;
the turning advancing device is arranged at the bottom of the metal frame, a stepping motor for providing power for the turning advancing device is connected to the turning advancing device, a remote control module is further connected to the turning advancing device, and a crane operator controls the stepping motor and the direct current motor through the remote control module;
the rotary straight plate hook comprises a plate-shaped hoisting part, a long shaft and a short shaft, wherein the long shaft and the short shaft are respectively fixedly connected with the transmission module chain, the hoisting part is in clearance fit with the short shaft and is rotatably connected with the short shaft, a sliding block in clearance fit is sleeved on the hoisting part, and the long shaft is in clearance fit with the sliding block and is rotatably connected with the sliding block.
According to the scheme, the metal frame is provided with 2 limiting plates, one limiting plate is located in front of the metal frame, the other limiting plate is located in the middle of the metal frame, the transmission module is fixed behind the metal frame, and the front is the front of a crane hoisting object to move.
According to the scheme, the metal frame comprises a square frame at the top and four supporting columns fixedly connected with four corners of the square frame.
According to the scheme, the ratchet wheel type chain wheel double-chain transmission module comprises two groups of transmission mechanisms with the same structure, each group of transmission mechanisms comprises an upper chain wheel and a lower chain wheel which are connected through a first chain, each chain wheel is provided with a small coaxial ratchet wheel type chain wheel, the two small ratchet wheel type chain wheels are connected through a second chain, the chain wheels of the two groups of transmission mechanisms above the.
According to the scheme, the chain wheel is in interference fit with the driving shaft, and the small ratchet wheel type chain wheel is connected with the driving shaft through a bearing.
According to the scheme, the direction-changing traveling device comprises a pair of left-handed Mecanum wheels and a pair of right-handed Mecanum wheels, and each Mecanum wheel is provided with one stepping motor.
The invention has the beneficial effects that: by combining the mechanical principle of crane transmission with the electronic technology, the automatic conveying device has the advantages of higher automation degree, convenient movement, high and novel conveying form, and the functions of lifting and stacking the goods before translational conveying are realized, so that the conveying efficiency is improved; the crane is additionally provided with the remote control module, the work task of a crane driver is reduced, the transportation accuracy and the transportation efficiency are improved, the crane can be widely applied to the working environments needing to be prepared for transportation and stacking, such as stacking of port containers and stacking of common warehouse goods, and the crane meets the development requirements of the crane and the requirements of the social working environment.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a metal frame according to an embodiment of the invention.
Fig. 3 is a schematic diagram of a limiting plate according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a transmission module according to an embodiment of the invention.
Fig. 5 is a schematic view of a rotating straight plate hook according to an embodiment of the invention.
In the figure: 1-metal frame, 2-limit plate, 3-transmission module, 4-rotary straight plate hook, 5-direction-changing traveling device, 6-remote control module, 101-square tube, 102-support, 301-driven shaft, 302-driving shaft, 303-first chain wheel, 304-first small ratchet wheel type chain wheel, 305-second chain wheel, 306-second small ratchet wheel type chain wheel, 307-first chain, 308-second chain, 309-bearing, 401-hoisting component, 402-long shaft, 403-short shaft and 404-sliding block.
Detailed Description
The invention is further illustrated by the following specific examples and figures.
The invention provides a double-chain type crane, which comprises a metal frame 1, a transmission module 3, a rotary straight plate hook 4 and a direction-changing advancing device 5, as shown in figure 1.
As shown in fig. 2, the metal frame 1 includes a square frame at the top, and four support posts 102 fixedly connected to four corners of the square frame. In this embodiment, the square frame is formed by connecting 4 square pipes 101 with 45-degree cut angles by welding, and four corners of the square frame are connected with 4 lower support columns 102 by welding. The square frame is placed horizontally, and the support column 102 is formed by vertically placing 4 square pipes.
As shown in fig. 1 and 3, 2 rectangular wooden limit plates 2 are arranged on the metal frame 1. One of the two blocks is arranged in front of the metal frame 1 through a bolt, when a lifted object is put down, the distance that the object slides forwards can be effectively limited, the lifted object can collide with the limiting plate 2 firstly and then slide down, and a certain distance is reserved between the lower part of the limiting plate 2 and the ground, so that the lifted object can reach a lifting position in the process of moving equipment. The other one is placed in the middle of the metal frame 2 through a bolt, the transmission module 3 is fixed behind the metal frame 1, and the front part is the front part for the movement of a hoisting object of the crane. Therefore, the limiting plate 2 in the middle is close to the transmission module 3, the deformation of the transmission module 3 caused by the bending moment caused by the gravity of a lifted object in the lifting process can be effectively reduced, and the stability of the structure is improved.
As shown in fig. 1 and 4, the transmission module 3 is a ratchet wheel type sprocket double-chain transmission module, and is fixed on a metal frame through a bearing, and a direct current motor for supplying power to the transmission module 3 is arranged laterally of the transmission module 3. The ratchet type chain wheel double-chain transmission module comprises two groups of transmission mechanisms with the same structure, each group of transmission mechanisms comprises an upper chain wheel and a lower chain wheel which are connected through a first chain 307, namely a first chain wheel 303 and a second chain wheel 305, each chain wheel is provided with a coaxial small ratchet type chain wheel, namely a first small ratchet type chain wheel 304 and a second small ratchet type chain wheel 306, the two small ratchet type chain wheels are connected through a second chain 308, the first chain wheel 303 and the first small ratchet type chain wheel 304 of the two groups of transmission mechanisms positioned above are connected through a driving shaft 302, the driving shaft 302 is connected with the direct current motor, the second chain wheel 305 and the second small ratchet type chain wheel 306 of the two groups of transmission mechanisms positioned below are connected through a driven shaft 301, and the driven shaft 301 is connected with the metal frame 1 through a bearing. The chain wheel is in interference fit with the driven shaft 301 of the driving shaft 302, and the small ratchet wheel type chain wheel is connected with the driven shaft 301 of the driving shaft 302 through a bearing 309.
When an object is lifted, the two first chain wheels 303 matched with the driving shaft 302, the two first small ratchet wheel type chain wheels 304 matched with the driving shaft 302, the two second chain wheels 305 matched with the driven shaft 301 and the two small ratchet wheel type chain wheels 306 matched with the driven shaft 301 can rotate under the action of the first chain 307 and the second chain 308, when the object is put down, the first small ratchet wheel type chain wheels 304 and the second small ratchet wheel type chain wheels 306 cannot rotate under the action of the ratchet, and the lifting and the putting down of the object are realized by combining with the rotating straight plate hook 4.
The turning advancing device 5 is arranged at the bottom of the metal frame 1, a stepping motor for providing power for the turning advancing device 5 is connected to the turning advancing device 5, and a remote control module 6 is further connected to the turning advancing device 5. The crane operator realizes the control of the stepping motor and the direct current motor through the remote control module. The direction-changing traveling device 5 includes a pair of left-handed mecanum wheels and a pair of right-handed mecanum wheels, each of which is provided with one of the stepping motors. When the machine moves, an operator gives an instruction to the remote control module 6 through remote control, and the remote control module 6 controls the corresponding motor to output torque according to the instruction through the steps of instruction receiving, instruction analyzing and instruction executing. Linear motors positioned on two sides of the metal frame 1 control the motion of the transmission module 3 to realize the lifting and stacking of goods; the horizontal movement of the machine is realized by 4 stepping motors which control the movement of the direction-changing traveling device 5. The direct current motor ensures the torque required in the process of lifting the goods; the stepping motor can overcome errors caused by unstable and asynchronous output power of the motor in the advancing process.
As shown in fig. 5, the rotating straight plate hook 4 includes a plate-shaped lifting member 401, a long shaft 402 and a short shaft 403, wherein the long shaft 402 and the short shaft 403 are respectively and fixedly connected with the chain of the transmission module 3, the lifting member 401 is in clearance fit and rotationally connected with the short shaft 403, a sliding block 404 in clearance fit is sleeved on the lifting member 401, and the long shaft 402 is in clearance fit and rotationally connected with the sliding block 404. This embodiment is equipped with 5 gyration straight board hooks 4, connects on the round pin post of chain through the welded mode respectively, and along with the motion of chain and synchronous motion to the mesh that the goods rises to realize. Specifically, the long shaft 402 and the short shaft 403 are connected to pins of a chain in the transmission module 3 in a welding manner, the hoisting component 401 and the short shaft 403 are in clearance fit and can rotate with each other, so that the box can fall down, the hoisting component 401 and the sliding block 404 are in clearance fit, the sliding block 404 plays a supporting role to realize the lifting of a hoisted object, and the long shaft 402 and the sliding block 404 are in clearance fit and can rotate with each other to match the movement of the hoisting component 401. In the process of hoisting the object, the hoisting of the object is realized by matching with the transmission module 3 under the supporting action of the slide block 404. In the process of putting down the object, the lifting component 401 is inclined downwards in cooperation with the motion of the transmission module 3, so that the lifted object falls.
In this embodiment, the remote control module 6 uses C51 as a microcontroller, and accesses a sensor, a bluetooth module, a stepping motor driver board, a stepping motor, a dc motor, and the like to the C51 main control board for control. And the chain slewing crane is semi-automatically controlled after being processed by reading data on each device, so that high-precision operation is realized.
In the embodiment, the mechanical combination and the control of the single chip microcomputer form a whole to complete the working process of the whole chain slewing crane. The chain rotary crane realizes the position change of the machine in the space through a direction changing advancing device 5 consisting of four Mecanum wheels and accurately reaches a target area, the lifting and stacking of goods are realized through a group of ratchet wheel type chain wheel double-chain transmission modules controlled by two direct current motors and matched with a rotary straight plate hook 4, and after the target position is reached, the rotary straight plate hook is matched with the ratchet wheel type chain wheel double-chain transmission modules to realize the falling and stacking of the goods.
The direction-changing advancing device 5 controls different output steering and rotating speeds by stepping motors fixed on two sides of the wheels so as to realize multi-directional movement of the machine. After the goods move to a target area, the ratchet wheel type chain wheel double-chain transmission module is matched with the rotary straight plate hook 4 to work so as to stack the goods. The design of a plurality of rotary straight plate hooks 4 can carry out successive hooking on the goods arranged in the same straight line and stack the goods in a row on a vertical plane.
The working sequence of this embodiment includes the following steps:
the machine starts, starts work, and operating personnel sends the machine through remote control module 6 and advances, ratchet formula sprocket double chain drive module pivoted instruction, and the gyration straight plate hook 4 of bottommost reaches horizontal position to get the hook and get first goods. The ratchet wheel type chain wheel double-chain transmission module continues to rotate, a second rotary straight plate hook 4 below the ratchet wheel type chain wheel double-chain transmission module reaches the horizontal position, and a second cargo is hooked. Until all the hooking of the goods in the same row is realized, the stacking of the goods is realized at the moment.
The bottom turning and traveling device 5 starts to work and stops moving after reaching the target area.
The ratchet wheel type chain wheel double-chain transmission module rotates reversely, all goods fall and are stacked in sequence by matching with the movement of the rotary straight plate hooks 4, and then the five rotary straight plate hooks are reset.
And repeating the operation to realize the transportation task of the final whole goods.
The double-chain crane provided by the invention has the advantages that the machine is used for replacing manual operation with high working strength and poor working environment, the working efficiency is improved, the labor force is liberated, and the body health of a driver is guaranteed to a certain extent.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (4)
1. A double chain crane is characterized in that: the device comprises a metal frame, a transmission module, a rotary straight plate hook and a turning advancing device; the transmission module is a ratchet wheel type chain wheel double-chain transmission module and is fixed on the metal frame through a bearing, and a direct current motor for providing power for the transmission module is arranged laterally of the transmission module;
the turning advancing device is arranged at the bottom of the metal frame, a stepping motor for providing power for the turning advancing device is connected to the turning advancing device, a remote control module is further connected to the turning advancing device, and a crane operator controls the stepping motor and the direct current motor through the remote control module;
the rotary straight plate hook comprises a plate-shaped hoisting part, a long shaft and a short shaft, wherein the long shaft and the short shaft are respectively and fixedly connected with the transmission module chain;
the ratchet wheel type chain wheel double-chain transmission module comprises two groups of transmission mechanisms with the same structure, each group of transmission mechanisms comprises an upper chain wheel and a lower chain wheel which are connected through a first chain, each chain wheel is provided with a coaxial small ratchet wheel type chain wheel, the two small ratchet wheel type chain wheels are connected through a second chain, the chain wheels of the two groups of transmission mechanisms positioned above are connected with the small ratchet wheel type chain wheels through driving shafts, the driving shafts are connected with the direct current motor, the chain wheels of the two groups of transmission mechanisms positioned below are connected with the small ratchet wheel type chain wheels through driven shafts, and the driven shafts are connected with the metal frame through bearings; the chain wheel is in interference fit with the driving shaft, and the small ratchet wheel type chain wheel is connected with the driving shaft through a bearing.
2. The double chain crane according to claim 1, wherein: the metal framework is provided with 2 limiting plates, one limiting plate is positioned in front of the metal framework, the other limiting plate is positioned in the middle of the metal framework, the transmission module is fixed behind the metal framework, and the front part is the front part of the crane for hoisting objects.
3. The double chain crane according to claim 1, wherein: the metal frame comprises a square frame at the top and four supporting columns fixedly connected with four corners of the square frame.
4. The double chain crane according to claim 1, wherein: the direction-changing traveling device comprises a pair of left-handed Mecanum wheels and a pair of right-handed Mecanum wheels, and each Mecanum wheel is provided with one stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602457.8A CN108706465B (en) | 2018-06-12 | 2018-06-12 | Double-chain type crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602457.8A CN108706465B (en) | 2018-06-12 | 2018-06-12 | Double-chain type crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108706465A CN108706465A (en) | 2018-10-26 |
| CN108706465B true CN108706465B (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810602457.8A Expired - Fee Related CN108706465B (en) | 2018-06-12 | 2018-06-12 | Double-chain type crane |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114076187A (en) * | 2020-08-20 | 2022-02-22 | 陈晓寒 | Intelligent belt tension constant keeping device and method |
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| US9908708B1 (en) * | 2015-05-13 | 2018-03-06 | Prince Castle LLC | Conveyor belt link with coupling mechanism |
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|---|---|---|---|---|
| CN201326889Y (en) * | 2008-12-23 | 2009-10-14 | 昆山意力电路世界有限公司 | Safety lever for punching machine |
| CN101863023A (en) * | 2010-06-04 | 2010-10-20 | 清华大学 | Two-degree-of-freedom parallel mechanism of plane polar coordinate |
| CN101863021A (en) * | 2010-06-04 | 2010-10-20 | 清华大学 | Two-degree-of-freedom parallel mechanism of plane polar coordinate |
| CN101863022A (en) * | 2010-06-04 | 2010-10-20 | 清华大学 | Two-degree-of-freedom parallel mechanism of plane polar coordinate |
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| CN108706465A (en) | 2018-10-26 |
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