A trolley wheel assembly device for a bridge crane

Abstract

The present invention relates to the technical field of cranes, and specifically to a trolley wheel assembly device for a bridge crane, comprising a frame installed above a track, wherein two running wheels are rotatably arranged in the middle of the frame, and the running wheels are rollingly arranged on the track, and further comprising a running mechanism, a deviation correction mechanism and a lubrication mechanism; the running mechanism comprises a dual-axis motor and two driving assemblies, the deviation correction mechanism comprises four rocker arms, four first balls, four pushing assemblies, four swing assemblies and four rotating assemblies, and the lubrication mechanism comprises a storage cylinder, an extrusion assembly and a discharging assembly, and when the running wheel deviates inside the track, the rocker arm can swing to push the running wheel to reset, thereby realizing an automatic deviation correction function, and avoiding the situation in which the wheel assembly rubs against the side of the track and the rail is gnawed due to excessive deviation of the running wheel, so that the device can achieve the effects of automatic deviation correction and anti-rail gnawing, and can adaptively adjust the position of the running wheel.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, in particular to a trolley wheel assembly device of a bridge crane. Background Art

[0002] The bridge crane trolley, also known as the bridge crane traveling mechanism, is an important component of the bridge crane. It is used to move on the track and complete the loading and unloading of materials. It is usually composed of main beams, end beams, trolleys and wheel sets. The wheel set is the key component to realize the movement of the trolley on the track.

[0003] During the operation of the crane trolley, inaccurate wheel installation position, excessive horizontal deviation or excessive vertical deviation will cause rail gnawing, that is, the wheel rim forms contact friction with the side of the running track. In the prior art, when the wheel gnaws the rail, the wheel is generally corrected by electric drive to prevent the gnaw. However, the electric drive consumes a lot of power, resulting in a high cost for the trolley wheel assembly installation.

[0004] At the same time, the existing trolley wheel assembly cannot reduce the friction between the wheel rim and the side of the track when the rail is bitten, which will cause serious wear of the wheel rim and the side of the track, and reduce the service life of the wheel rim and the track. To address the above problems, a trolley wheel assembly device for a bridge crane is now provided. Summary of the invention

[0005] The object of the present invention is to provide a trolley wheel assembly device for a bridge crane to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A trolley wheel assembly device for a bridge crane comprises a frame installed above a track, two running wheels are rotatably arranged in the middle of the frame, the running wheels are rollingly arranged on the track, and the frame also comprises a running mechanism, a deviation correction mechanism and a lubrication mechanism;

[0008] The walking mechanism includes a dual-axis motor and two drive assemblies. The dual-axis motor is fixedly mounted on one side of the frame, and each drive assembly is located between the dual-axis motor and a walking wheel.

[0009] The deviation correction mechanism includes four swing rods, four first ball bearings, four pushing assemblies, four swing assemblies and four rotating assemblies, wherein every two swing rods are arranged on both sides of a running wheel, each first ball bearing is installed at one end of a swing rod close to the running wheel, every two pushing assemblies are symmetrically installed on one side of the frame, the other end of each pushing assembly rolls on the track, each rotating assembly is installed on one side of a pushing assembly, and each swing assembly is located between a swing rod and a rotating assembly;

[0010] The lubrication mechanism includes a storage cylinder, an extrusion assembly and a discharge assembly. The storage cylinder is installed on the side of the frame away from the dual-axis motor, the discharge assembly is installed on one end of the storage cylinder, and the extrusion assembly is installed on the end of the storage cylinder away from the discharge assembly.

[0011] As a further solution of the present invention: each pushing assembly includes a hollow tube, an L-shaped rod and an auxiliary wheel. The hollow tube is fixedly installed on one side of the frame, one end of the L-shaped rod is inserted into the interior of the hollow tube and is slidably connected to the hollow tube, and the auxiliary wheel is rotatably arranged at the end of the L-shaped rod away from the hollow tube.

[0012] As a further solution of the present invention: two auxiliary slide rails are symmetrically installed on both sides of the track, and two auxiliary wheels located on the same side are both rollingly arranged in one auxiliary slide rail.

[0013] As a further solution of the present invention: each rotating component includes a vertical rod, a rack, a gear and a first mounting plate, the first mounting plate is fixedly mounted on one side of the L-shaped rod, the gear is rotatably arranged on the first mounting plate, the top end of the vertical rod is fixedly connected to the hollow tube, the bottom end of the vertical rod is fixedly connected to the rack, the rack is located on one side of the gear and is meshed with the gear.

[0014] As a further solution of the present invention: each swing assembly includes a first sprocket, a second sprocket, a second mounting plate and a chain, the first sprocket is located on the side of the first mounting plate away from the gear and is coaxially fixedly connected to the gear, the second mounting plate is located on one side of the first mounting plate and is fixed on the L-shaped rod, the end of the swing arm away from the first ball is rotatably set on the second mounting plate, the second sprocket is located on one side of the swing arm and is coaxially fixedly connected to the swing arm, and the chain is sleeved on the first sprocket and the second mounting plate.

[0015] As a further solution of the present invention: each driving assembly includes a worm, a worm wheel, a driving wheel, a driven wheel, and a transmission belt. The worm is fixed to the output end of the dual-axis motor, the worm wheel is rotatably arranged on one side of the frame, the worm and the worm wheel are meshed with each other, the driving wheel is located on one side of the worm wheel and is coaxially fixedly connected to the worm wheel, the rotating shaft of the walking wheel passes through the frame and is fixedly connected to the driven wheel, and the transmission belt is sleeved on the driving wheel and the driven wheel.

[0016] As a further solution of the present invention: the extrusion assembly includes a push plate, a push rod, a moving block, a screw, a drive motor and a through hole, the screw is rotatably arranged on one side of the frame, the drive motor is installed on the frame and the output end of the drive motor is fixedly connected to one end of the screw, the moving block is installed on the screw, the moving block and the screw are threadedly matched, the push plate is slidably arranged inside the storage tube, the push rod slides at one end of the storage tube and one end of the push rod is fixedly connected to the push plate, the other end of the push rod is fixedly connected to the moving block, and the through hole is opened on the surface of one end of the storage tube close to the moving block.

[0017] As a further solution of the present invention: the discharge assembly includes an output pipe, a main pipe, two connecting pipes, four branch pipes and four nozzles, the output pipe is installed at one end of the storage tube away from the push rod, the main pipe is installed on one side of the frame, the other end of the output pipe is connected to the main pipe, the two connecting pipes are respectively installed at both ends of the main pipe, every two branch pipes are installed on a connecting pipe, and each nozzle is installed at one end of a branch pipe away from the connecting pipe.

[0018] As a further solution of the present invention: a plurality of mounting grooves are provided on the inner walls on both sides of the track, and a second ball is embedded in each mounting groove.

[0019] As a further solution of the present invention: a side plate is fixed to the bottom of one end of each hollow tube away from the frame, a guide rod is installed on each side plate, the other end of each guide rod is plugged into an L-shaped rod, a spring is sleeved on the surface of each guide rod, and both ends of each spring are respectively connected to the side plate and the L-shaped rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. A trolley wheel assembly device for a bridge crane of the present invention is provided with a deviation correction mechanism. When the traveling wheel deviates inside the track, the traveling wheel will drive the frame to move, thereby through the pushing assembly, the rotating assembly and the swinging assembly, when the frame moves laterally with the deviation of the traveling wheel, the rocker arm can swing to push the traveling wheel to reset, thereby realizing the automatic deviation correction function, avoiding the situation where the wheel assembly and the side of the track rub and gnawing the track due to excessive deviation of the traveling wheel, so that the device can achieve the effect of automatic deviation correction and anti-gnawing of the track, can adaptively adjust the position of the traveling wheel, and does not need electric drive, which greatly reduces the power consumption of the device and thus reduces the cost.

[0022] 2. A trolley wheel assembly device for a bridge crane of the present invention is provided with auxiliary wheels and auxiliary slide rails so that the deviation correction mechanism can move with the movement of the frame, that is, when the traveling wheel deviates at any position on the track, the traveling wheel can be automatically corrected to prevent the track from being chewed.

[0023] 3. A trolley wheel assembly device for a bridge crane of the present invention is provided with a lubrication mechanism. The lubricating liquid stored in the storage cylinder can be squeezed out by using an extrusion component, and the lubricating liquid can be squeezed out to both sides of the running wheel by using a discharging component, thereby reducing the friction between the rim of the running wheel and the side of the track, which is beneficial to extending the service life of the running wheel and the track. At the same time, in conjunction with a plurality of second ball bearings on both sides of the track, the friction between the rim of the running wheel and the side of the track can be further reduced.

[0024] 4. A trolley wheel assembly device for a bridge crane of the present invention has a spring arranged between a hollow tube and an L-shaped rod. When the frame moves laterally with the deviation of the traveling wheel, the frame can drive the hollow tube to move, thereby causing the spring to deform. The deformation energy of the spring can firstly drive the frame to reset, thereby achieving a certain deviation correction effect. At the same time, combined with the deviation correction mechanism, it can be more conducive to reducing the probability of the traveling wheel in the device gnawing the rail, thereby meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A.

[0027] Figure 3 It is a side view of the present invention.

[0028] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B.

[0029] Figure 5 The structure diagram of the present invention without the track Figure 1 .

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of part C.

[0031] Figure 7 The structure diagram of the present invention without the track Figure 2 .

[0032] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part D.

[0033] Fig. 9 It is a partial structural schematic diagram of the deviation correction mechanism in the present invention.

[0034] Fig.10 It is a schematic diagram of the internal structure of the storage cylinder in the present invention.

[0035] Among them: 11, track; 12, frame; 13, walking wheel; 14, double-axis motor; 15, worm; 16, worm wheel; 17, driving wheel; 18, driven wheel; 19, transmission belt; 20, storage cylinder; 21, push plate; 22, push rod; 23, moving block; 24, screw rod; 25, driving motor; 26, through hole; 27, output pipe; 28, main pipe; 29, connecting pipe; 30, nozzle; 31, Hollow tube; 32. L-shaped rod; 33. Side plate; 34. Spring; 35. Auxiliary wheel; 36. Auxiliary slide rail; 37. Vertical rod; 38. Rack; 39. Gear; 40. First mounting plate; 41. First sprocket; 42. Second sprocket; 43. Second mounting plate; 44. Chain; 45. Rocker; 46. First ball; 47. Mounting groove; 48. Second ball; 49. Guide rod; 50. Diverter pipe. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] The present invention provides the following preferred embodiments:

[0038] Embodiment 1, as Figure 1-Figure 10 As shown, a wheel assembly device for a trolley of a bridge crane includes a frame 12 installed above a track 11, two running wheels 13 are rotatably arranged in the middle of the frame 12, and the running wheels 13 are rollingly arranged on the track 11, and also includes a running mechanism, a deviation correction mechanism and a lubrication mechanism;

[0039] The walking mechanism includes a double-axis motor 14 and two drive components. The double-axis motor 14 is fixedly installed on one side of the frame 12. Each drive component is located between the double-axis motor 14 and a walking wheel 13. When the trolley of the crane needs to move, the double-axis motor 14 is controlled to work. Under the action of the two drive components, when the double-axis motor 14 works, it can drive the two walking wheels 13 on the frame 12 to rotate synchronously, thereby driving the trolley to move;

[0040] The deviation correction mechanism includes four swing rods 45, four first balls 46, four pushing components, four swing components and four rotating components. Every two swing rods 45 are arranged on both sides of a running wheel 13. Each first ball 46 is installed at one end of a swing rod 45 close to the running wheel 13. When the swing rod 45 pushes the running wheel 13 to reset, the first ball 46 at the end of the swing rod 45 first contacts the running wheel 13. The first ball 46 can reduce the friction with the running wheel 13 without affecting the normal running of the running wheel 13. Every two pushing components are symmetrically installed on one side of the frame 12. The other end of each pushing component rolls on the track 11. Each rotating component is installed on one side of a pushing component. Each swing component is located between a swing rod 45 and a rotating component.

[0041] When the running wheel 13 deviates inside the track 11, the running wheel 13 will drive the frame 12 to move, so that through the pushing assembly, the rotating assembly and the swinging assembly, when the frame 12 moves laterally with the deviation of the running wheel 13, the swing rod 45 can swing to push the running wheel 13 to reset, realizing the automatic deviation correction function, avoiding the situation where the wheel group and the side of the track 11 rub against each other and the track is gnawed due to excessive deviation of the running wheel 13, so that the device can achieve the effect of automatic deviation correction and anti-track gnawing, and can adaptively adjust the position of the running wheel 13 without the need for electric drive, which greatly reduces the power consumption of the device and thus reduces the cost;

[0042] The lubrication mechanism includes a storage cylinder 20, an extrusion assembly and a discharge assembly. The storage cylinder 20 is mounted on a side of the frame 12 away from the dual-axis motor 14, the discharge assembly is mounted on one end of the storage cylinder 20, and the extrusion assembly is mounted on the end of the storage cylinder 20 away from the discharge assembly.

[0043] By setting up a lubrication mechanism, the lubricating liquid stored in the storage cylinder 20 can be squeezed out by using an extrusion component, and the lubricating liquid can be squeezed out to both sides of the running wheel 13 through the discharge component, thereby reducing the friction between the wheel rim of the running wheel 13 and the side of the track 11, which is beneficial to extending the service life of the running wheel 13 and the track 11.

[0044] like Figure 1-Figure 10 As shown, each pushing assembly includes a hollow tube 31, an L-shaped rod 32 and an auxiliary wheel 35. The hollow tube 31 is fixedly mounted on one side of the frame 12, one end of the L-shaped rod 32 is inserted into the interior of the hollow tube 31 and is slidably connected to the hollow tube 31, and the auxiliary wheel 35 is rotatably arranged at one end of the L-shaped rod 32 away from the hollow tube 31;

[0045] Two auxiliary rails 36 are symmetrically installed on both sides of the track 11, and two auxiliary wheels 35 located on the same side are both rollingly arranged in one auxiliary rail 36;

[0046] When the vehicle frame 12 moves along the length direction of the track 11, the vehicle frame 12 can drive the hollow tube 31 to move, and the hollow tube 31 can drive the L-shaped rod 32 to move. At the same time, the L-shaped rod 32 can drive the auxiliary wheel 35 to roll inside the auxiliary slide rail 36. The auxiliary slide rail 36 can be used to limit the L-shaped rod 32, ensuring that the L-shaped rod 32 can move along the length direction of the track 11.

[0047] like Figure 1-Figure 10As shown, each rotating assembly includes a vertical rod 37, a rack 38, a gear 39 and a first mounting plate 40. The first mounting plate 40 is fixedly mounted on one side of the L-shaped rod 32. The gear 39 is rotatably disposed on the first mounting plate 40. The top end of the vertical rod 37 is fixedly connected to the hollow tube 31. The bottom end of the vertical rod 37 is fixedly connected to the rack 38. The rack 38 is located on one side of the gear 39 and meshes with the gear 39.

[0048] When the running wheel 13 is offset inside the track 11, the running wheel 13 can drive the hollow tube 31 to move horizontally through the frame 12, so that the hollow tube 31 can slide on the L-shaped rod 32. At the same time, the hollow tube 31 can drive the rack 38 to move through the vertical rod 37. Since the rack 38 and the gear 39 are meshed with each other, when the hollow tube 31 moves, it can drive the gear 39 to rotate on the first mounting plate 40.

[0049] like Figure 1-Figure 10 As shown, each swing assembly includes a first sprocket 41, a second sprocket 42, a second mounting plate 43 and a chain 44. The first sprocket 41 is located on a side of the first mounting plate 40 away from the gear 39 and is coaxially fixedly connected to the gear 39. The second mounting plate 43 is located on one side of the first mounting plate 40 and is fixed on the L-shaped rod 32. One end of the swing rod 45 away from the first ball 46 is rotatably arranged on the second mounting plate 43. The second sprocket 42 is located on one side of the swing rod 45 and is coaxially fixedly connected to the swing rod 45. The chain 44 is sleeved on the first sprocket 41 and the second mounting plate 43.

[0050] When the gear 39 rotates, the gear 39 can drive the first sprocket 41 to rotate. Under the action of the chain 44, the rotation of the first sprocket 41 can drive the second sprocket 42 to rotate, thereby driving the swing rod 45 to rotate, so that the swing rod 45 can push the walking wheel 13 to move, thereby achieving a correction effect.

[0051] like Figure 1-Figure 10 As shown, each driving assembly includes a worm 15, a worm wheel 16, a driving wheel 17, a driven wheel 18, and a transmission belt 19. The worm 15 is fixed to the output end of the dual-axis motor 14. The worm wheel 16 is rotatably arranged on one side of the frame 12. The worm 15 and the worm wheel 16 are meshed with each other. The driving wheel 17 is located on one side of the worm wheel 16 and is coaxially fixedly connected to the worm wheel 16. The rotating shaft of the walking wheel 13 passes through the frame 12 and is fixedly connected to the driven wheel 18. The transmission belt 19 is sleeved on the driving wheel 17 and the driven wheel 18.

[0052] When the dual-axis motor 14 is working, it can drive the worm 15 to rotate. Since the worm 15 and the worm wheel 16 are meshed with each other, when the worm 15 rotates, it can drive the worm wheel 16 to rotate. The worm wheel 16 can drive the driving wheel 17 to rotate. Under the action of the transmission belt 19, it can drive the driven wheel 18 to rotate, thereby realizing the movement of the walking wheel 13.

[0053] like Figure 1-Figure 10 As shown, a side plate 33 is fixed to the bottom of one end of each hollow tube 31 away from the frame 12, and a guide rod 49 is installed on each side plate 33. The other end of each guide rod 49 is plugged into an L-shaped rod 32. A spring 34 is sleeved on the surface of each guide rod 49, and the two ends of each spring 34 are respectively connected to the side plate 33 and the L-shaped rod 32. When the frame 12 moves laterally with the deviation of the running wheel 13, the frame 12 can drive the hollow tube 31 to move, thereby causing the spring 34 to deform. The deformation energy of the spring 34 can first drive the frame 12 to reset, thereby achieving a certain correction effect. At the same time, combined with the correction mechanism, it can be more conducive to reducing the probability of the running wheel 13 in the device gnawing the rail, thereby meeting the use requirements.

[0054] Embodiment 2, as Figure 7-Figure 10 As shown, the extrusion assembly includes a push plate 21, a push rod 22, a moving block 23, a screw 24, a drive motor 25 and a through hole 26, the screw 24 is rotatably arranged on one side of the frame 12, the drive motor 25 is mounted on the frame 12 and the output end of the drive motor 25 is fixedly connected to one end of the screw 24, the moving block 23 is mounted on the screw 24, the moving block 23 and the screw 24 are threadedly matched, the push plate 21 is slidably arranged inside the storage cylinder 20, the push rod 22 slides on one end of the storage cylinder 20 and one end of the push rod 22 is fixedly connected to the push plate 21, the other end of the push rod 22 is fixedly connected to the moving block 23, and the through hole 26 is opened on the surface of one end of the storage cylinder 20 close to the moving block 23;

[0055] When lubricant needs to be added to the side of the traveling wheel 13, the driving motor 25 is controlled to work, and the driving motor 25 can drive the screw rod 24 to rotate. Due to the threaded fit between the moving block 23 and the screw rod 24, when the screw rod 24 rotates, the moving block 23 can drive the push rod 22 to slide on the storage tube 20, thereby driving the push plate 21 to slide inside the storage tube 20, and pushing out the lubricant stored inside the storage tube 20.

[0056] like Fig.10 As shown, the discharging assembly includes an output pipe 27, a main pipe 28, two connecting pipes 29, four shunt pipes 50 and four nozzles 30. The output pipe 27 is installed at one end of the storage cylinder 20 away from the push rod 22. The main pipe 28 is installed on one side of the frame 12. The other end of the output pipe 27 is connected to the main pipe 28. The two connecting pipes 29 are respectively installed at both ends of the main pipe 28. Every two shunt pipes 50 are installed on one connecting pipe 29. Each nozzle 30 is installed at one end of a shunt pipe 50 away from the connecting pipe 29.

[0057] When the push plate 21 moves inside the storage cylinder 20, the push plate 21 can squeeze the lubricating liquid inside the storage cylinder 20 into the inside of the output pipe 27, and the lubricating liquid enters the inside of the two connecting pipes 29 through the main pipe 28, and then the lubricating liquid is evenly sprayed to both sides of the two running wheels 13 through four nozzles 30, thereby reducing the friction between the wheel rim of the running wheel 13 and the side of the track 11, which is beneficial to extend the service life of the running wheel 13 and the track 11.

[0058] like Figure 1-Figure 10 As shown, the inner walls on both sides of the track 11 are provided with a plurality of mounting grooves 47, and a second ball 48 is embedded in each mounting groove 47. The friction between the wheel rim of the running wheel 13 and the side of the track 11 can be further reduced by the plurality of second balls 48 on both sides.

[0059] At the same time, the sprayed lubricating oil can also lubricate the second ball 48 to reduce the wear of the second ball 48 , which is beneficial to prolonging the service life of the second ball 48 .

[0060] The specific working process of the present invention is as follows:

[0061] When the crane trolley needs to move, the dual-axis motor 14 is controlled to work. When the dual-axis motor 14 works, it can drive the worm 15 to rotate. Since the worm 15 and the worm wheel 16 are meshed with each other, when the worm 15 rotates, it can drive the worm wheel 16 to rotate. The worm wheel 16 can drive the driving wheel 17 to rotate. Under the action of the transmission belt 19, it can drive the driven wheel 18 to rotate, so that the travel wheel 13 can move.

[0062] When the vehicle frame 12 moves along the length direction of the track 11, the vehicle frame 12 can drive the hollow tube 31 to move, and the hollow tube 31 can drive the L-shaped rod 32 to move. At the same time, the L-shaped rod 32 can drive the auxiliary wheel 35 to roll inside the auxiliary slide rail 36. The auxiliary slide rail 36 can limit the position of the L-shaped rod 32 to ensure that the L-shaped rod 32 can move along the length direction of the track 11.

[0063] When the traveling wheel 13 deviates inside the track 11, the traveling wheel 13 can drive the hollow tube 31 to move horizontally through the frame 12, so that the hollow tube 31 can slide on the L-shaped rod 32, and at the same time, the hollow tube 31 can drive the rack 38 to move through the vertical rod 37. Since the rack 38 and the gear 39 are meshed with each other, when the hollow tube 31 moves, it can drive the gear 39 to rotate on the first mounting plate 40. When the gear 39 rotates, the gear 39 can drive the first sprocket 41 to rotate. Under the action of the chain 44, when the first sprocket 41 rotates, it can drive the second sprocket 42 to rotate, thereby driving the swing rod 45 to rotate, so that the swing rod 45 can push the traveling wheel 13 to move, thereby achieving a deviation correction effect.

[0064] When it is necessary to add lubricant to the side of the traveling wheel 13, the driving motor 25 is controlled to work, and the driving motor 25 can drive the screw rod 24 to rotate. Due to the threaded fit between the moving block 23 and the screw rod 24, when the screw rod 24 rotates, the moving block 23 can drive the push rod 22 to slide on the storage cylinder 20, thereby driving the push plate 21 to slide inside the storage cylinder 20, and pushing out the lubricant stored in the storage cylinder 20. When the push plate 21 moves inside the storage cylinder 20, the push plate 21 can squeeze the lubricating liquid inside the storage cylinder 20 into the inside of the output pipe 27, and the lubricating liquid enters the inside of the two connecting pipes 29 through the main pipe 28, and then the lubricating liquid is evenly sprayed to both sides of the two traveling wheels 13 through the four nozzles 30, so as to reduce the friction between the wheel rim of the traveling wheel 13 and the side of the track 11, which is beneficial to prolonging the service life of the traveling wheel 13 and the track 11. At the same time, with the multiple second balls 48 on both sides of the track 11, the friction between the wheel rim of the traveling wheel 13 and the side of the track 11 can be further reduced.

[0065] When the push plate 21 moves inside the storage cylinder 20, the push plate 21 can squeeze the lubricating liquid inside the storage cylinder 20 into the inside of the output pipe 27, and the lubricating liquid enters the inside of the two connecting pipes 29 through the main pipe 28, and then the lubricating liquid is evenly sprayed to both sides of the two running wheels 13 through four nozzles 30, thereby reducing the friction between the wheel rim of the running wheel 13 and the side of the track 11, which is beneficial to extend the service life of the running wheel 13 and the track 11.

[0066] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A trolley wheel assembly device for a bridge crane, comprising a frame (12) mounted above a track (11), wherein two running wheels (13) are rotatably arranged in the middle of the frame (12), and the running wheels (13) are rollingly arranged on the track (11), characterized in that: It also includes a walking mechanism, a deviation correcting mechanism and a lubricating mechanism; The walking mechanism comprises a dual-axis motor (14) and two drive assemblies, wherein the dual-axis motor (14) is fixedly mounted on one side of the vehicle frame (12), and each drive assembly is located between the dual-axis motor (14) and a walking wheel (13); The deviation correction mechanism comprises four swing rods (45), four first balls (46), four pushing components, four swing components and four rotating components, wherein every two swing rods (45) are arranged on both sides of a running wheel (13), each first ball (46) is installed on one end of a swing rod (45) close to the running wheel (13), every two pushing components are symmetrically installed on one side of the frame (12), the other end of each pushing component rolls on the track (11), each rotating component is installed on one side of a pushing component, and each swing component is located between a swing rod (45) and a rotating component; The lubrication mechanism comprises a storage cylinder (20), an extrusion assembly and a discharge assembly, wherein the storage cylinder (20) is mounted on a side of the frame (12) away from the dual-axis motor (14), the discharge assembly is mounted on one end of the storage cylinder (20), and the extrusion assembly is mounted on an end of the storage cylinder (20) away from the discharge assembly; Each pushing assembly comprises a hollow tube (31), an L-shaped rod (32) and an auxiliary wheel (35); the hollow tube (31) is fixedly mounted on one side of the vehicle frame (12); one end of the L-shaped rod (32) is inserted into the interior of the hollow tube (31) and is slidably connected to the hollow tube (31); and the auxiliary wheel (35) is rotatably arranged on one end of the L-shaped rod (32) away from the hollow tube (31); Two auxiliary slide rails (36) are symmetrically installed on both sides of the track (11), and two auxiliary wheels (35) located on the same side are both rollingly arranged in one auxiliary slide rail (36); Each rotating assembly comprises a vertical rod (37), a rack (38), a gear (39) and a first mounting plate (40); the first mounting plate (40) is fixedly mounted on one side of the L-shaped rod (32); the gear (39) is rotatably mounted on the first mounting plate (40); the top end of the vertical rod (37) is fixedly connected to the hollow tube (31); the bottom end of the vertical rod (37) is fixedly connected to the rack (38); the rack (38) is located on one side of the gear (39) and meshes with the gear (39); Each swing assembly comprises a first sprocket (41), a second sprocket (42), a second mounting plate (43) and a chain (44); the first sprocket (41) is located on a side of the first mounting plate (40) away from the gear (39) and is coaxially fixedly connected to the gear (39); the second mounting plate (43) is located on a side of the first mounting plate (40) and is fixed on the L-shaped rod (32); an end of the swing rod (45) away from the first ball (46) is rotatably arranged on the second mounting plate (43); the second sprocket (42) is located on a side of the swing rod (45) and is coaxially fixedly connected to the swing rod (45); and the chain (44) is sleeved on the first sprocket (41) and the second mounting plate (43).

2. A trolley wheel assembly device for a bridge crane according to claim 1, characterized in that: Each driving assembly comprises a worm (15), a worm wheel (16), a driving wheel (17), a driven wheel (18), and a transmission belt (19); the worm (15) is fixed to the output end of the dual-axis motor (14); the worm wheel (16) is rotatably arranged on one side of the vehicle frame (12); the worm (15) and the worm wheel (16) are meshed with each other; the driving wheel (17) is located on one side of the worm wheel (16) and is coaxially fixedly connected to the worm wheel (16); the rotating shaft of the travel wheel (13) passes through the vehicle frame (12) and is fixedly connected to the driven wheel (18); and the transmission belt (19) is sleeved on the driving wheel (17) and the driven wheel (18).

3. A trolley wheel assembly device for a bridge crane according to claim 2, characterized in that: The extrusion assembly comprises a push plate (21), a push rod (22), a moving block (23), a screw rod (24), a driving motor (25) and a through hole (26); the screw rod (24) is rotatably arranged on one side of the frame (12); the driving motor (25) is mounted on the frame (12) and the output end of the driving motor (25) is fixedly connected to one end of the screw rod (24); the moving block (23) is mounted on the screw rod (24); the moving block (23) and the screw rod (24) are threadedly matched; the push plate (21) is slidably arranged inside the storage tube (20); the push rod (22) slides on one end of the storage tube (20) and one end of the push rod (22) is fixedly connected to the push plate (21); the other end of the push rod (22) is fixedly connected to the moving block (23); and the through hole (26) is opened on the surface of one end of the storage tube (20) close to the moving block (23).

4. A trolley wheel assembly device for a bridge crane according to claim 3, characterized in that: The discharge assembly comprises an output pipe (27), a main pipe (28), two connecting pipes (29), four branch pipes (50) and four nozzles (30). The output pipe (27) is installed at one end of the storage tube (20) away from the push rod (22). The main pipe (28) is installed on one side of the frame (12). The other end of the output pipe (27) is connected to the main pipe (28). The two connecting pipes (29) are respectively installed at both ends of the main pipe (28). Every two branch pipes (50) are installed on one connecting pipe (29). Each nozzle (30) is installed at one end of a branch pipe (50) away from the connecting pipe (29).

5. The trolley wheel assembly device of a bridge crane according to claim 4, characterized in that: The inner walls on both sides of the track (11) are provided with a plurality of mounting grooves (47), and a second ball (48) is embedded in each mounting groove (47).

6. A trolley wheel assembly device for a bridge crane according to claim 5, characterized in that: A side plate (33) is fixed to the bottom of one end of each hollow tube (31) away from the vehicle frame (12), a guide rod (49) is installed on each side plate (33), the other end of each guide rod (49) is plugged into an L-shaped rod (32), a spring (34) is sleeved on the surface of each guide rod (49), and the two ends of each spring (34) are respectively connected to the side plate (33) and the L-shaped rod (32).

Images