A traveling device for the trolley of a crane

Abstract

The present invention relates to the technical field of crane traveling devices, and specifically, to a traveling device for a crane trolley, which includes a mounting frame. An air-operated component corresponding to the wheel body is arranged inside the mounting frame. The output ends of the air-operated component are respectively provided with an oil filling component, a blowing component, and a powder spraying component. A speed reduction component for intermittently controlling the connection between the oil filling component and the air-operated component is further arranged on the output end of the driving device. By setting the cooperation of the air-operated component with the powder spraying component and the oil filling component, it is beneficial to provide an immediate lubrication effect when the wheel body starts and brakes, reducing the wear on the surface of the wheel body caused by slipping. The first control component in the oil filling component controls the spraying of lubricating oil through the rotation of the blocking disk, ensuring that there is sufficient lubricating oil during the travel of the wheel body to reduce wear, and at the same time avoiding the negative impacts caused by excessive lubrication.

Description

Technical Field

[0001] The present invention relates to the technical field of crane traveling devices, and more particularly to a traveling device for the crane's trolley. Background Art

[0002] The traveling device of the crane's trolley is an important part of the crane, responsible for moving the entire crane on a horizontal plane to achieve the handling and stacking of goods. The traveling device of the crane's trolley is usually installed to run on a fixed track, and the driving wheels are driven to rotate through transmission mechanisms such as motors and reducers, thereby realizing the horizontal movement of the crane.

[0003] During the operation of the crane's wheels on the track, since the track is usually exposed and the main working environment is inside the factory building, various impurities tend to accumulate on the track surface. The presence of these impurities, combined with the fact that the crane is a large mechanical device and its load-bearing capacity, continuously crushes the impurities on the track during the walking process, resulting in accelerated wear of the wheels. In particular, it should be noted that if the impurities accumulated on both sides of the track are uneven, it may cause imbalance of the overall crane, and even pose a derailment risk in severe cases. In addition, considering the significant inertia generated by the crane's own weight and load during braking, it is easy to cause wheel slip, which further aggravates the wear of the wheels. Therefore, it is necessary to reduce the wear of the wheels on the track and extend the service life of the wheels.

[0004] Based on this, the present invention discloses a traveling device for the crane's trolley. Summary of the Invention

[0005] To solve the problems of uneven wear of the crane's wheels caused by track impurities and potential derailment risks in the background art, and the aggravation of wear due to braking slip, measures need to be taken to reduce wear and extend the service life of the wheels. The present invention provides a traveling device for the crane's trolley, which includes a track body and a crane body arranged on the track body through mounting frames on both sides. Driving devices are respectively arranged at the front and rear ends of the mounting frames, and a wheel body is arranged at the part of the output end of the driving device located inside the mounting frame.

[0006] As a further improvement of the technical solution, a pneumatic component corresponding to the walking wheel body is arranged in the mounting frame. The output ends of the pneumatic component are respectively provided with an oil filling component, a blowing component and a powder spraying component. A speed reducing component for intermittently controlling the communication between the oil filling component and the pneumatic component is also arranged on the output end of the driving device. Among them, a plurality of oil filling pipes are circumferentially arranged around the center in the walking wheel body. The oil filling component intermittently sprays lubricating oil onto the contact surface between the walking wheel body and the track body through the oil filling pipes. The blowing component includes nozzles symmetrically arranged on both sides of the top end of the walking wheel body, and the nozzles point to the surface of the track body and the tangential position on one side of the walking wheel body. The powder spraying component includes a second control component and powder spraying heads symmetrically arranged at both ends of the bottom of the walking wheel body. The powder spraying heads point to the bottom end of the contact between the walking wheel body and the surface of the track body. The second control component controls the pneumatic component to communicate with the powder spraying heads and spray lubricating powder when the walking wheel body is braked through electromagnetic technology. When the walking wheel body is braked, the pneumatic component stops working with hysteresis.

[0007] As a further improvement of the technical solution, the pneumatic component includes an air pump fixed in the mounting frame. The output end of the air pump is communicated with a four-way pipe, and the other three ports of the four-way pipe are respectively a first joint, a second joint and a third joint.

[0008] As a further improvement of the technical solution, the speed reducing component includes a driving gear fixed on the output end of the driving device. A reduction gear is meshed on one side of the driving gear. The reduction gear is rotatably connected to the inner wall of the mounting frame. An elastic telescopic stop rod is fixed on the side of the reduction gear close to the walking wheel body.

[0009] As a further improvement of the technical solution, the oil filling component includes a first output pipe and an oil storage tank. The oil storage tank is fixed in the mounting frame and is rotatably connected to the output end of the driving device. One end of the first output pipe is communicated with the first joint, and the other end of the first output pipe is communicated with the oil storage tank. A first control component controlled by the elastic telescopic stop rod is arranged in the first output pipe.

[0010] As a further improvement of the technical solution, the first control component includes a blocking disc rotatably arranged in the first output pipe. The structure of the blocking disc is adapted to the inner wall of the first output pipe. A connecting rod is arranged at the top end of the blocking disc. One end of the connecting rod is fixedly connected to the blocking disc, and the other end of the connecting rod extends out of the first output pipe and is fixedly connected with a control rod. An installation box is fixed at the bottom of the control rod. The control rod is of a U-shaped structure. A torsion spring that always causes the horizontal end of the U-shaped structure of the control rod to be perpendicular to the axial direction of the first output pipe is arranged in the installation box. When the elastic telescopic stop rod rotates to the top of its circumferential track, the elastic telescopic stop rod contacts the longitudinal end of the U-shaped structure of the control rod away from the installation box.

[0011] As a further improvement of the technical solution, a fuel filling groove is provided on one side of the traveling wheel body where it is located on the oil storage tank. The traveling wheel body communicates with one side of the oil storage tank through the fuel filling groove. One end of the fuel filling pipe communicates with the fuel filling groove, and the other end of the fuel filling pipe extends to the middle position outside the surface where the traveling wheel body contacts the track body; a circular first drainage groove is provided along the middle position of the periphery of the surface where the traveling wheel body contacts the track body. One end of the fuel filling pipe away from the fuel filling groove is located in the first drainage groove; a plurality of second drainage grooves along the axial direction of the traveling wheel body are circumferentially arranged on the periphery of the surface where the traveling wheel body contacts the track body, and one end of the fuel filling pipe located in the first drainage groove is located in the middle position of the second drainage groove.

[0012] As a further improvement of the technical solution, the air blowing assembly further includes a second output pipe. One end of the second output pipe communicates with the second joint, and the other end of the second output pipe extends to the top position of the traveling wheel body and is symmetrically communicated with a first air blowing pipe and a second air blowing pipe on both sides respectively. One ends of the first air blowing pipe and the second air blowing pipe away from the second output pipe are both communicated with the nozzle.

[0013] As a further improvement of the technical solution, a first air blowing port and a second air blowing port are respectively provided on both sides of the traveling wheel body inside the mounting frame. The opening positions of the first air blowing port and the second air blowing port are respectively adapted to the wind directions of the nozzles on both sides of the traveling wheel body.

[0014] As a further improvement of the technical solution, the powder spraying assembly further includes a third output pipe. One end of the third output pipe communicates with the third joint, and the other end of the third output pipe communicates with the second control assembly. The third output pipe communicates with the powder storage tank through the second control assembly. A communicating pipe is provided on one side of the powder storage tank away from the second control assembly. The powder storage tank communicates with a first powder blowing pipe and a second powder blowing pipe respectively through the communicating pipe. One ends of the first powder blowing pipe and the second powder blowing pipe away from the communicating pipe are respectively communicated with the powder spraying heads on both sides of the bottom of the traveling wheel body.

[0015] As a further improvement of the technical solution, the second control assembly includes a transfer pipe. A blocking pipe adapted to the inner wall of the transfer pipe is slidably arranged in the transfer pipe. The transfer pipe is divided into a first chamber and a second chamber by the blocking pipe. The first chamber communicates with the powder storage tank. One end of the second chamber away from the first chamber is hermetically arranged. An air inlet hole communicating with the third output pipe is provided at the top of the transfer pipe. A tension spring is arranged in the second chamber. One end of the tension spring is fixedly connected with the blocking pipe, and the other end of the tension spring is fixedly connected with the end of the transfer pipe away from the powder storage tank. A first electromagnetic block is arranged on the inner wall of the end of the transfer pipe away from the powder storage tank. A second electromagnetic block magnetically repulsive to the first electromagnetic block is arranged at the end of the blocking pipe away from the powder storage tank;

[0016] In the initial state, the third output pipe is communicated with the first chamber through the air inlet hole;

[0017] In the working state of the running wheel body, the first electromagnetic block and the second electromagnetic block are activated, the blocking pipe is located below the air inlet hole, and the air inlet hole is blocked;

[0018] In the braking state of the running wheel body, the first electromagnetic block and the second electromagnetic block are synchronously closed, the blocking pipe is located on the side of the air inlet hole away from the powder storage tank, and the third output pipe is communicated with the first chamber through the air inlet hole.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this crane trolley traveling device, uniform lubrication distribution is achieved. The first drainage groove and the second drainage groove are arranged inside the running wheel, so that the lubricating oil can be evenly distributed on the surface where the running wheel contacts the track. Through this structural design, the lubricating oil can more efficiently cover the entire contact surface, enhancing the lubrication effect. At the same time, it also helps to remove impurities, further improving the wear resistance of the running wheel.

[0021] 2. In this crane trolley traveling device, intermittent oil filling control is achieved. Through the design of the reduction gear and the elastic telescopic stop rod, the intermittent working mode of the oil filling component is realized. This design ensures that the lubricating oil is only sprayed in an appropriate amount during the required time period, which not only ensures sufficient lubrication effect but also avoids waste and potential safety hazards caused by excessive lubricating oil. In this way, the running wheel can always maintain an appropriate lubrication state during operation, reducing unnecessary frictional losses.

[0022] 3. In this crane trolley traveling device, lubrication protection during startup and braking is achieved. Through the cooperation of the pneumatic component and the powder spraying component, lubricating powder (such as graphite powder, molybdenum disulfide powder) is sprayed onto the bottom of the running wheel during the startup and braking stages of the crane, reducing the slipping phenomenon during startup and braking. This instant lubrication mechanism can significantly reduce the wear of the running wheel surface, especially under high-load operating conditions, further extending the service life of the running wheel.

[0023] 4. In this crane trolley traveling device, cleaning of impurities on the track and anti-wear are achieved. By setting the air blowing component, the device can continuously clean the surface of the track during the traveling of the crane, preventing the accumulation of impurities. Specifically, the nozzle blows air towards the surface of the track and the tangential position of the running wheel, effectively removing the impurities on the track and avoiding additional wear caused by these impurities under the rolling of the running wheel. This not only reduces the wear of the running wheel but also reduces the risk of derailment caused by uneven tracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Structural schematic diagram of the crane body of the present invention;

[0026] Figure 3 Structural schematic diagram of the mounting bracket of the present invention;

[0027] Figure 4 Structural sectional view of the mounting bracket of the present invention;

[0028] Figure 5 Structural schematic diagram of the pneumatic component of the present invention;

[0029] Figure 6 Structural schematic diagram of the running wheel body of the present invention;

[0030] Figure 7 is Figure 6 Enlarged view of the structure at A in;

[0031] Figure 8 is Figure 6 Enlarged view of the structure at B in;

[0032] Figure 9 The first structural sectional view of the running wheel body of the present invention;

[0033] Figure 10 The second structural sectional view of the running wheel body of the present invention;

[0034] Figure 11 Structural schematic diagram of the fuel filling component of the present invention;

[0035] Figure 12 Structural sectional view of the first output pipe of the present invention;

[0036] Figure 13 is Figure 12 Enlarged view of the structure at C in;

[0037] Figure 14 Schematic diagram of the state of the control rod of the present invention;

[0038] Figure 15 Structural schematic diagram of the air blowing component of the present invention;

[0039] Figure 16 The first structural schematic diagram of the powder spraying component of the present invention;

[0040] Figure 17 The second structural schematic diagram of the powder spraying component of the present invention;

[0041] Figure 18 is Figure 17 Enlarged view of the structure at D in;

[0042] Figure 19Schematic diagram of the second control component of the present invention.

[0043] The meanings of each label in the figure are as follows:

[0044] 1. Rail body; 2. Mounting frame; 3. Driving device; 4. Wheel body; 5. Pneumatic component; 6. Oil filling component; 7. Air blowing component; 8. Powder spraying component; 9. First air blowing port; 10. Second air blowing port; 11. Oil filling tank; 12. Oil filling pipe; 13. First drainage groove; 14. Second drainage groove; 15. Deceleration component

[0045] 51. Air pump; 52. Four-way pipe; 53. First joint; 54. Second joint; 55. Third joint

[0046] 61. First output pipe; 62. First control component; 63. Oil storage tank

[0047] 621. Blocking disc; 622. Connecting rod; 623. Control rod; 624. Installation box; 625. Torsion spring

[0048] 71. Second output pipe; 72. First air blowing pipe; 73. Second air blowing pipe; 74. Nozzle

[0049] 81. Third output pipe; 82. Second control component; 83. Powder storage tank; 84. Connecting pipe; 85. First powder blowing pipe; 86. Second powder blowing pipe

[0050] 821. Adapter pipe; 822. Air inlet hole; 823. Blocking pipe; 824. Tension spring; 825. First electromagnet; 826. Second electromagnet; 827. First chamber; 828. Second chamber

[0051] 151. Driving gear; 152. Reduction gear; 153. Elastic telescopic stop rod Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Existing impurities in the track cause uneven wear of the crane wheels and potential derailment risks. In addition, braking slippage aggravates wear, so measures need to be taken to reduce wear and extend the life of the wheels.

[0054] For this reason, the present invention provides a traveling device for a crane trolley. Refer to Figures 1 - 3As shown in the figure, it includes an orbit body 1 and a crane body arranged on the orbit body 1 through mounting frames 2 on both sides. Driving devices 3 are respectively arranged at the front and rear ends of the mounting frames 2. A running wheel body 4 is arranged at the part of the output end of the driving device 3 located inside the mounting frame 2. The crane body drives the corresponding running wheel bodies 4 to rotate through four driving devices 3, driving the crane body to travel on the orbit body 1.

[0055] Specifically, refer to Figures 4 - 5 As shown in the figure, a pneumatic component 5 corresponding to the running wheel body 4 one by one is arranged inside the mounting frame 2. The pneumatic component 5 includes an air pump 51 fixedly arranged inside the mounting frame 2. The output end of the air pump 51 is communicated with a four-way pipe 52. The other three ports of the four-way pipe 52 are respectively a first joint 53, a second joint 54 and a third joint 55.

[0056] Furthermore, as Figure 5 shown in the figure, an oil filling component 6, a blowing component 7 and a powder spraying component 8 are respectively arranged on the first joint 53, the second joint 54 and the third joint 55. Secondly, when the running wheel body 4 is braked, the air pump 51 stops working with a lag. That is to say, when the running wheel body 4 is braked, the stop of the air pump 51 will have a lag, but the lag time is not long, only meeting the power demand of the powder spraying component 8 to spray powder on the bottom of the running wheel body 4 below;

[0057] When the running wheel body 4 starts and brakes, due to the large size and load of the crane body itself, slipping may occur during both starting and braking. In order to reduce the wear on the surface of the running wheel body 4 caused by slipping, the powder spraying component 8 is required to spray lubricating powder near the bottom of the running wheel body 4 in contact with the orbit body 1 during the starting and braking stages of the running wheel body 4. The lubricating powder can be graphite powder, molybdenum disulfide powder, etc.

[0058] It is worth mentioning that although lubricating powder is sprayed on the bottom of the running wheel body 4 during the starting and braking stages of the running wheel body 4, considering the factors of the weight and load of the crane body, the influence on the running and braking of the running wheel body 4 is minimal. The lubricating powder only serves to reduce wear;

[0059] Among them, as Figure 5 and Figures 16 - 19As shown, the powder spraying assembly 8 includes a second control assembly 82 and powder spraying nozzles symmetrically arranged at both ends of the bottom of the walking wheel body 4. The powder spraying nozzles point to the bottom end of the contact surface between the walking wheel body 4 and the track body 1. The second control assembly 82 controls the pneumatic assembly 5 to communicate with the powder spraying nozzles and spray lubricating powder through electromagnetic technology when the walking wheel body 4 is braked; the powder spraying assembly 8 further includes a third output pipe 81. One end of the third output pipe 81 is communicated with the third joint 55, and the other end of the third output pipe 81 is communicated with the second control assembly 82. The third output pipe 81 is communicated with the powder storage tank 83 through the second control assembly 82. A communicating pipe 84 is arranged on one side of the powder storage tank 83 away from the second control assembly 82. The powder storage tank 83 is communicated with the first powder blowing pipe 85 and the second powder blowing pipe 86 respectively through the communicating pipe 84. The ends of the first powder blowing pipe 85 and the second powder blowing pipe 86 away from the communicating pipe 84 are respectively communicated with the powder spraying nozzles located on both sides of the bottom of the walking wheel body 4; the second control assembly 82 includes a transfer pipe 821. A blocking pipe 823 adapted to the inner wall of the transfer pipe 821 is slidably arranged in the transfer pipe 821. The transfer pipe 821 is divided into a first chamber 827 and a second chamber 828 by the blocking pipe 823. The first chamber 827 is communicated with the powder storage tank 83. One end of the second chamber 828 away from the first chamber 827 is sealed. An air inlet hole 822 communicated with the third output pipe 81 is opened at the top end of the transfer pipe 821. A tension spring 824 is arranged in the second chamber 828. One end of the tension spring 824 is fixedly connected with the blocking pipe 823, and the other end of the tension spring 824 is fixedly connected with the end of the transfer pipe 821 away from the powder storage tank 83. A first electromagnetic block 825 is arranged on the inner wall of the end of the transfer pipe 821 away from the powder storage tank 83. A second electromagnetic block 826 magnetically repulsive to the first electromagnetic block 825 is arranged at the end of the blocking pipe 823 away from the powder storage tank 83.

[0060] Specifically, as shown in Figure 18 and Figure 19 At the initial state, the third output pipe 81 is communicated with the first chamber 827 through the air inlet hole 822, and the blocking pipe 823 is located on the side of the air inlet hole 822 away from the powder storage tank 83;

[0061] When the walking wheel body 4 is in the working state, the first electromagnetic block 825 and the second electromagnetic block 826 are started. The blocking pipe 823 is pushed to below the air inlet hole 822 by the magnetic repulsion of the first electromagnetic block 825 and the second electromagnetic block 826, and the air inlet hole 822 is blocked. Just before the first electromagnetic block 825 and the second electromagnetic block 826 are started, the air pump 51 is started first. Therefore, at this moment, the third output pipe 81 is communicated with the first chamber 827 through the air inlet hole 822. So, at the moment of starting, lubricating powder can be sprayed to both ends of the bottom of the walking wheel body 4 first to reduce the wear caused by the starting slip of the walking wheel body 4. Since the wear caused by the starting slip is less than that of the braking slip, the spraying amount at this moment can meet the requirement for protecting the walking wheel body 4, and there is no need for a larger amount of lubricating powder during the braking stage;

[0062] When the running wheel body 4 is in the braking state, the first electromagnetic block 825 and the second electromagnetic block 826 are synchronously closed, and the blocking tube 823 is reset by the pulling force of the tension spring 824, so that the blocking tube 823 is located on the side of the air inlet hole 822 away from the powder storage tank 83. The third output pipe 81 is communicated with the first chamber 827 through the air inlet hole 822. Then, combined with the lag in the closing of the air pump 51 above, in this stage, the powder storage tank 83 obtains power to spray the lubricating powder onto the bottom of the running wheel body 4, reducing the wear of the running wheel body 4 caused by slipping during the braking stage.

[0063] Furthermore, a speed reduction assembly 15 for intermittently controlling the fueling assembly 6 communicated with the pneumatic assembly 5 is also provided on the output end of the driving device 3;

[0064] Among them, as shown in Figure 5 and Figure 11 The speed reduction assembly 15 includes a driving gear 151 fixed on the output end of the driving device 3. A reduction gear 152 is meshed on one side of the driving gear 151. The reduction gear 152 is rotatably connected to the inner wall of the mounting frame 2. An elastic telescopic stop rod 153 is fixed on the side of the reduction gear 152 close to the running wheel body 4. By setting the reduction gear 152 and the driving gear 151, the rotation speed of the reduction gear 152 becomes slower, meeting the subsequent requirement that the elastic telescopic stop rod 153 controls the fueling assembly 6 to intermittently spray oil on the running wheel body 4, and preventing excessive lubricating oil from being sprayed on the track body 1 and the running wheel body 4, resulting in waste.

[0065] Specifically, as shown in Figure 5 、 Figure 6 and Figure 11 A plurality of fueling pipes 12 are circumferentially arranged around the center in the running wheel body 4. The fueling assembly 6 intermittently sprays lubricating oil onto the contact surface between the running wheel body 4 and the track body 1 through the fueling pipes 12; and the fueling assembly 6 includes a first output pipe 61 and a fuel tank 63. The fuel tank 63 is fixed in the mounting frame 2 and is rotatably connected to the output end of the driving device 3. One end of the first output pipe 61 is communicated with the first joint 53, and the other end of the first output pipe 61 is communicated with the fuel tank 63. A first control assembly 62 controlled by the elastic telescopic stop rod 153 is arranged in the first output pipe 61;

[0066] Among them, as shown in Figures 12 - 14As shown, the first control component 62 includes a blocking disk 621 rotatably arranged in the first output pipe 61. The structure of the blocking disk 621 is adapted to the inner wall of the first output pipe 61. A connecting rod 622 is provided at the top of the blocking disk 621. One end of the connecting rod 622 is fixedly connected to the blocking disk 621, and the other end of the connecting rod 622 extends outside the first output pipe 61 and is fixedly connected to a control rod 623. An installation box 624 is fixedly provided at the bottom of the control rod 623. Secondly, the control rod 623 is in a U-shaped structure, and a torsion spring 625 is arranged in the installation box 624, which always causes the horizontal end of the U-shaped structure of the control rod 623 to be perpendicular to the axial direction of the first output pipe 61. As Figure 14 shown, when the top of the circumferential trajectory of the elastic telescopic stop rod 153 rotates, the elastic telescopic stop rod 153 contacts the longitudinal end of the U-shaped structure of the control rod 623 away from the installation box 624. When the reduction gear 152 drives the elastic telescopic stop rod 153 to rotate to a certain position, the elastic telescopic stop rod 153 will disengage from the control rod 623 due to its length and the elastic telescopic characteristics of the elastic telescopic stop rod 153, causing the control rod 623 to reset under the action of the installation box 624. During this process, the blocking disk 621 is driven to rotate, causing the first joint 53 to communicate with the fuel tank 63 through the first output pipe 61, so that the lubricating oil in the first output pipe 61 has the power to blow it towards the fuel injection pipe 12 and spray it onto the surface of the running wheel body 4.

[0067] Further, referring to Figures 6 - 10 shown, in order to realize spraying oil towards the surface where the running wheel body 4 contacts the track body 1 to reduce wear, an oil filling groove 11 is also opened on one side of the running wheel body 4 where it is located in the fuel tank 63. The running wheel body 4 communicates with one side of the fuel tank 63 through the oil filling groove 11. One end of the fuel injection pipe 12 is communicated with the oil filling groove 11, and the other end of the fuel injection pipe 12 extends to the middle position outside the surface where the running wheel body 4 contacts the track body 1. Secondly, a circular first drainage groove 13 is opened at the middle position of the periphery of the surface where the running wheel body 4 contacts the track body 1. One end of the fuel injection pipe 12 away from the oil filling groove 11 is located in the first drainage groove 13. At the same time, a plurality of second drainage grooves 14 along the axial direction of the running wheel body 4 are arranged circumferentially at the periphery of the surface where the running wheel body 4 contacts the track body 1, and one end of the fuel injection pipe 12 located in the first drainage groove 13 is located in the middle position of the second drainage groove 14. Through the arrangement of the first drainage groove 13 and the second drainage groove 14, the lubricating oil sprayed from the fuel injection pipe 12 can flow more evenly towards the surface of the running wheel body 4. At the same time, it should be added that when impurities or lubricating powder enter during the opening of the first drainage groove 13 and the second drainage groove 14, the presence of the nozzle 74 blowing air tangentially will clean this position.

[0068] Furthermore, referring to Figure 5 and Figure 15As shown, in addition to solving the wear of the running wheel body 4 during operation on the track body 1, it is also necessary to clean the track body 1 to prevent foreign objects from falling on the track body 1 and causing wear to the running wheel body 4. The blowing component 7 includes a second output pipe 71. One end of the second output pipe 71 is connected to the second joint 54, and the other end of the second output pipe 71 extends to the top position of the running wheel body 4, and a first blowing pipe 72 and a second blowing pipe 73 are symmetrically connected to both sides respectively. One ends of the first blowing pipe 72 and the second blowing pipe 73 away from the second output pipe 71 are both connected with spray nozzles 74, and the spray nozzles 74 are symmetrically arranged on both sides of the top of the running wheel body 4, and the spray nozzles 74 point to the surface of the track body 1 and the tangential position on one side of the running wheel body 4.

[0069] It should be added that as Figure 4 and Figure 15 shown, in order to meet the requirement that the spray nozzles 74 can blow a larger range on the surfaces of the track bodies 1 on both sides of the running wheel body 4, first blowing openings 9 and second blowing openings 10 are respectively opened on both sides of the running wheel body 4 inside the mounting frame 2. The opening positions of the first blowing openings 9 and the second blowing openings 10 are respectively adapted to the wind directions of the spray nozzles 74 on both sides of the running wheel body 4. In this way, when the running wheel body 4 moves forward or backward, the impurities on the track bodies 1 on both sides can be blown away by the spray nozzles 74, preventing them from being crushed by the running wheel body 4 and causing wear to the running wheel body 4. Moreover, since the spray nozzles 74 are oriented tangentially to both sides of the running wheel body 4, the remaining wind can also blow the lubricating oil on the surface of the running wheel body 4, enabling the lubricating oil on the surface of the running wheel body 4 to flow faster on the first drainage groove 13 and the second drainage groove 14, increasing the coating efficiency of the lubricating oil on the surface of the running wheel body 4 and making it slide down to the bottom of the running wheel body 4 as soon as possible, facilitating the surface in contact with the track body 1 to have sufficient lubricating oil when the running wheel body 4 is operating.

[0070] To sum up, in the start / stop stage: the air pump 51 starts → the powder spraying component 8 preferentially sprays lubricating powder → the magnetic components 825 / 826 intervene to cut off the powder spraying → the blowing component 7 starts synchronously for cleaning; in the uniform driving stage: the reduction gear 152 triggers the oil adding component 6 to spray oil intermittently → the drainage grooves 13 / 14 guide the oil film to be evenly distributed → the tangential air flow of the spray nozzles 74 assists in the diffusion of the oil film; in the braking lag stage: the air pump 51 is closed with a time delay → the powder spraying component 8 replenishes powder for the second time → counteracts the braking slip energy; thus effectively solving the problems of uneven wear of the crane running wheels caused by existing track impurities and potential derailment risks, and in addition, the braking slip aggravates the wear, and measures need to be taken to reduce the wear and extend the service life of the running wheels.

[0071] Working principle:

[0072] During specific operation, the driving device 3 is started to drive the wheel body 4, and then the crane body is displaced on the track body 1. During the startup process of the driving device 3, the air pump 51 is started synchronously, but the first electromagnetic block 825 and the second electromagnetic block 826 are started with a delay. In this way, when the air pump 51 is started, through the connection between the third output pipe 81 and the powder storage tank 83, when the wheel body 4 is started, a certain amount of lubricating powder is sprayed towards both ends of the bottom of the wheel body 4 to prevent slipping and wear during startup;

[0073] After the first electromagnetic block 825 and the second electromagnetic block 826 are started, the blocking pipe 823 is pushed to below the air inlet hole 822 through the repulsive force to block the connection between the third output pipe 81 and the powder storage tank 83. Therefore, during the operation of the wheel body 4, the powder storage tank 83 no longer sprays powder through the powder spraying head.

[0074] After the air pump 51 is started, it is always connected to the nozzles 74 on both sides of the wheel body 4 through the second output pipe 71, and sprays towards both sides of the wheel body 4 and the surface of the track body 1 located on both sides of the wheel body 4 to blow the lubricating oil and impurities on the surface of the track body 1 where the wheel body 4 is to operate and the surface of the wheel body 4.

[0075] After the wheel body 4 travels a certain distance, the reduction gear 152 driven by the driving gear 151 rotates to a position where the elastic telescopic blocking rod 153 can touch the control rod 623, thereby causing the blocking disc 621 to rotate. The first joint 53 is connected to the oil storage tank 63 through the first output pipe 61, and the oil storage tank 63 obtains power to spray the lubricating oil therein onto the surface of the wheel body 4 through the oil filling pipe 12, and then flows towards the surface of the wheel body 4 by means of the wind force of the first drainage groove 13, the second drainage groove 14 and the nozzle 74, so that there is lubricating oil during the travel of the wheel body 4 to reduce wear, and at the same time, the lubricating oil is not coated in a large amount.

[0076] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traveling device for the trolley of a crane, comprising a track body (1) and a mounting frame (2) arranged thereon. A plurality of running wheel bodies (4) driven by a driving device (3) are arranged in the mounting frame (2), and it is characterized in that: A pneumatic component (5) corresponding to the running wheel body (4) is arranged in the mounting bracket (2). The output ends of the pneumatic component (5) are respectively provided with an oil filling component (6), a blowing component (7) and a powder spraying component (8). A speed reducing component (15) for intermittently controlling the communication between the oil filling component (6) and the pneumatic component (5) is further arranged on the output end of the driving device (3); Among them, the speed reducing component (15) includes a speed reducing gear (152), and an elastic telescopic stop rod (153) is fixedly arranged on one side of the speed reducing gear (152) close to the running wheel body (4); the oil filling component (6) includes a first output pipe (61), and a first control component (62) controlled by the elastic telescopic stop rod (153) is arranged in the first output pipe (61). The first control component (62) includes a control rod (623) and a mounting box (624). A torsion spring (625) for making the control rod (623) tend to be perpendicular to the axial direction of the first output pipe (61) is arranged in the mounting box (624). When the elastic telescopic stop rod (153) rotates to the top of its circumferential track, the elastic telescopic stop rod (153) contacts the control rod (623); A plurality of oil filling pipes (12) are circumferentially arranged around the center in the running wheel body (4), and the oil filling component (6) intermittently sprays lubricating oil to the contact surface between the running wheel body (4) and the track body (1) through the oil filling pipes (12); The blowing component (7) includes spray heads (74) symmetrically arranged on both sides of the top of the running wheel body (4), and the spray heads (74) point to the surface of the track body (1) and the tangential position on one side of the running wheel body (4); The powder spraying component (8) includes a second control component (82) and powder spraying heads symmetrically arranged at both ends of the bottom of the running wheel body (4). The powder spraying heads point to the bottom end of the contact between the running wheel body (4) and the surface of the track body (1). The second control component (82) controls the pneumatic component (5) to communicate with the powder spraying heads and spray lubricating powder when the running wheel body (4) is braked through electromagnetic technology; When the running wheel body (4) is braked, the pneumatic component (5) stops working with hysteresis.

2. The crane trolley traveling device according to claim 1, characterized in that: The pneumatic component (5) includes an air pump (51) fixedly arranged in the mounting bracket (2). The output end of the air pump (51) is communicated with a four-way pipe (52), and the other three ports of the four-way pipe (52) are respectively a first joint (53), a second joint (54) and a third joint (55).

3. The crane trolley traveling device according to claim 2, characterized in that: The speed reducing component (15) includes a driving gear (151) fixedly arranged on the output end of the driving device (3). One side of the driving gear (151) meshes with the speed reducing gear (152), and the speed reducing gear (152) is rotatably connected to the inner wall of the mounting bracket (2).

4. The crane trolley traveling device according to claim 3, characterized in that: The oil filling component (6) includes an oil storage tank (63). The oil storage tank (63) is fixedly arranged in the mounting bracket (2), and the oil storage tank (63) is rotatably connected to the output end of the driving device (3). One end of the first output pipe (61) is communicated with the first joint (53), and the other end of the first output pipe (61) is communicated with the oil storage tank (63).

5. The crane trolley traveling device according to claim 4, characterized in that: The first control component (62) includes a blocking disc (621) rotatably arranged in the first output pipe (61). The structure of the blocking disc (621) is adapted to the inner wall of the first output pipe (61). A connecting rod (622) is provided at the top of the blocking disc (621). One end of the connecting rod (622) is fixedly connected to the blocking disc (621), and the other end of the connecting rod (622) extends outside the first output pipe (61) and is fixedly connected to a control rod (623). An installation box (624) is fixedly provided at the bottom of the control rod (623). The control rod (623) has a U-shaped structure, and there is a torsion spring (625) that always makes the horizontal end of the U-shaped structure of the control rod (623) tend to be perpendicular to the axial direction of the first output pipe (61). When the elastic telescopic stop rod (153) rotates to the top of its circumferential trajectory, the elastic telescopic stop rod (153) contacts the longitudinal end of the U-shaped structure of the control rod (623) away from the installation box (624).

6. The crane trolley traveling device according to claim 4, characterized in that: An oil filling groove (11) is provided on one side of the running wheel body (4) where it is located on one side of the oil storage tank (63). The running wheel body (4) is communicated with one side of the oil storage tank (63) through the oil filling groove (11). One end of the oil filling pipe (12) is communicated with the oil filling groove (11), and the other end of the oil filling pipe (12) extends to the middle position outside the surface where the running wheel body (4) contacts the track body (1). A circular first drainage groove (13) is provided along the middle position of the outer periphery of the surface where the running wheel body (4) contacts the track body (1). One end of the oil filling pipe (12) away from the oil filling groove (11) is located in the first drainage groove (13). A number of second drainage grooves (14) along the axial direction of the running wheel body (4) are circumferentially arranged on the outer periphery of the surface where the running wheel body (4) contacts the track body (1), and one end of the oil filling pipe (12) located in the first drainage groove (13) is located in the middle position of the second drainage grooves (14).

7. The traveling device of the crane trolley according to claim 2, characterized in that: The air blowing component (7) further includes a second output pipe (71). One end of the second output pipe (71) is communicated with the second joint (54), and the other end of the second output pipe (71) extends to the top position of the running wheel body (4) and is symmetrically communicated with a first air blowing pipe (72) and a second air blowing pipe (73) on both sides respectively. One ends of the first air blowing pipe (72) and the second air blowing pipe (73) away from the second output pipe (71) are both communicated with a spray head (74).

8. The traveling device of the crane trolley according to claim 7, characterized in that: First air blowing openings (9) and second air blowing openings (10) are respectively provided on both sides of the running wheel body (4) inside the mounting frame (2). The opening positions of the first air blowing openings (9) and the second air blowing openings (10) are respectively adapted to the wind directions of the spray heads (74) on both sides of the running wheel body (4).

9. The crane trolley traveling device according to claim 2, characterized in that: The powder spraying assembly (8) further includes a third output pipe (81). One end of the third output pipe (81) is communicated with a third joint (55), and the other end of the third output pipe (81) is communicated with a second control assembly (82). The third output pipe (81) is communicated with a powder storage tank (83) through the second control assembly (82). A communication pipe (84) is arranged on one side of the powder storage tank (83) away from the second control assembly (82). The powder storage tank (83) is communicated with a first powder blowing pipe (85) and a second powder blowing pipe (86) respectively through the communication pipe (84). The ends of the first powder blowing pipe (85) and the second powder blowing pipe (86) away from the communication pipe (84) are respectively communicated with powder spraying heads located on both sides of the bottom of the walking wheel body (4).

10. The crane trolley traveling device according to claim 9, characterized in that: The second control assembly (82) includes an adapter pipe (821). A blocking pipe (823) adapted to the inner wall of the adapter pipe (821) is slidably arranged in the adapter pipe (821). The adapter pipe (821) is divided into a first chamber (827) and a second chamber (828) by the blocking pipe (823). The first chamber (827) is communicated with the powder storage tank (83). One end of the second chamber (828) away from the first chamber (827) is in a sealed state. An air inlet hole (822) communicated with the third output pipe (81) is opened at the top end of the adapter pipe (821). A tension spring (824) is arranged in the second chamber (828). One end of the tension spring (824) is fixedly connected with the blocking pipe (823), and the other end of the tension spring (824) is fixedly connected with the end of the adapter pipe (821) away from the powder storage tank (83). A first electromagnetic block (825) is arranged on the inner wall of the end of the adapter pipe (821) away from the powder storage tank (83). A second electromagnetic block (826) magnetically repulsive to the first electromagnetic block (825) is arranged at the end of the blocking pipe (823) away from the powder storage tank (83). In the initial state, the third output pipe (81) is communicated with the first chamber (827) through the air inlet hole (822). In the working state of the walking wheel body (4), the first electromagnetic block (825) and the second electromagnetic block (826) are started. The blocking pipe (823) is located below the air inlet hole (822), and the air inlet hole (822) is blocked. In the braking state of the walking wheel body (4), the first electromagnetic block (825) and the second electromagnetic block (826) are synchronously closed. The blocking pipe (823) is located on the side of the air inlet hole (822) away from the powder storage tank (83), and the third output pipe (81) is communicated with the first chamber (827) through the air inlet hole (822).

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