Hoisting wheel group with modular combined structure

Abstract

The invention discloses a hoisting wheel set of a modular combined structure, and relates to the technical field of hoisting wheel sets, the hoisting wheel set comprises a wheel frame, traveling wheel shafts located at the two ends of the bottom of the wheel frame and traveling wheels arranged on the traveling wheel shafts in a sleeving mode, the two ends of the bottom of the wheel frame are connected with wheel supports, and the two ends of the traveling wheel shafts are connected to the wheel supports through bearings; the two ends of the bearing are provided with an inner end cover and an outer end cover which are fixedly connected to the wheel support, one traveling axle is externally connected with a driving device, one end of the traveling axle externally connected with the driving device extends out of the outer end cover, the two ends of the bearing are provided with an inner flowing cavity and an outer flowing cavity, and the inner flowing cavity is located on the side close to the traveling wheels. According to the hoisting wheel set of the modular combined structure, lubricating oil in the hoisting wheel set can circularly flow, the overall lubricating capacity is improved, and meanwhile the temperature difference between the driving shaft and the driven shaft is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of a lifting wheel assembly, and more particularly to a lifting wheel assembly with a modular combined structure. Background Art

[0002] Modular crane wheel sets are specially designed heavy-duty transport equipment that consists of multiple independent, interchangeable modules. Each module usually contains a set of wheels and axles, and can be connected to other modules to meet the transportation needs of cargo of different sizes and weights. This type of wheel set is widely used in the transportation of overweight and oversized cargo such as wind turbine components, large machinery and equipment, prefabricated building structures, etc.

[0003] The Chinese patent application number 202311357966.6 discloses a crane wheel assembly, which includes a wheel axle, a wheel is fixed at the right end of the wheel axle, and bearing assemblies are installed on the wheel axles on both sides of the wheel. The bearing assembly includes a bearing box, a bearing is arranged in the bearing box, and the bearing is fixed on the wheel axle. The end of the bearing box close to the wheel is detachably provided with a through cover, and the end of the bearing box away from the wheel is detachably fixed with a blind cover, and the upper end of the blind cover is provided with an oil nozzle for adding lubricating oil, and the lower end of the through cover is provided with a through hole and an oil discharge mechanism is provided in the through hole; the oil discharge mechanism includes a horizontally arranged oil discharge shaft, and the right end of the oil discharge shaft is provided with a shaft shoulder, and the oil discharge shaft is detachably fixed on the through cover, and a horizontally arranged oil discharge cavity is provided on the oil discharge shaft, and the left end of the oil discharge shaft is open, and the right end of the oil discharge shaft is provided with an oil discharge hole, and the oil discharge hole is connected to the oil discharge cavity, and an oil groove corresponding to the oil discharge hole is provided on the inner side of the through cover. The above-mentioned device is convenient for discharging old lubricating oil to avoid mixing of new oil and old oil.

[0004] The Chinese patent application number 202210992332.7 discloses an embedded gear ratio speed regulating crane wheel, which includes a mounting frame, a wheel, a first bracket and a first bearing, etc. A wheel is provided on one side of the mounting frame, and a first bracket is provided on the side of the mounting frame close to the wheel, a first bearing is sleeved on the first bracket, and the wheel is sleeved on the first bearing. The above device has an oil pump inside, which can spray lubricating oil into the wheel to improve the lubrication capacity during use.

[0005] The current lifting wheel assembly still has the following problems when in use: 1. The overall structure is compact, and a lubricating oil chamber is provided on each wheel set so that each wheel set can be installed and removed separately, resulting in that the fluidity of the lubricating oil in the lubricating oil chamber is restricted and the lubricating effect cannot be well played.

[0006] 2. It is inevitable that dust, sand and other pollutants will enter the wheel set. These external impurities may be mixed into the lubricating oil. At the same time, the metal parts inside the wheel set (such as bearings, axles, etc.) will rub against each other, which will cause the metal surface to gradually wear over a long period of time and produce tiny metal debris. These debris and impurities will intensify the friction between the internal parts of the wheel set and reduce the service life of the parts.

[0007] 3. After long-term use, the heat generated by friction will cause the temperature of the lubricating oil to rise. Excessively high oil temperature will accelerate the aging and performance degradation of the lubricating oil, and may even cause problems such as deterioration of oil quality and lubrication failure.

[0008] Therefore, it is necessary to propose a modular combined structure lifting wheel group to solve the above problems. Summary of the invention

[0009] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a lifting wheel assembly with a modular combined structure to solve the problems raised in the above background technology.

[0010] The technical solution is that the present invention comprises a wheel frame, axles located at both ends of the bottom of the wheel frame, and a running wheel sleeved on the axle, wherein the two ends of the bottom of the wheel frame are connected to the wheel frame, and the two ends of the axle are connected to the wheel frame through bearings, and the two ends of the bearing are provided with an inner end cover and an outer end cover fixedly connected to the wheel frame, one of the axles is externally connected to a driving device, and one end of the axle of the external driving device extends out of the outer end cover, and the two ends of the bearing are provided with an inner flow cavity and an outer flow cavity, and the inner flow cavity is located on the side close to the running wheel; Two adjacent inner flow chambers are connected by an oil pipeline, and flow grooves are provided inside the traveling axles, and both ends of the flow grooves are located in the outer flow chamber. A conveying assembly is provided inside the traveling axles, and the conveying assembly includes a conveying fixed disk fixedly connected to the inner flow chamber, and a cover plate symmetrically rotatably connected to the inside of the conveying fixed disk. A crescent plate and an axis column are connected between the two symmetrical cover plates, and an inner gear ring arranged coaxially is rotatably connected between the cover plates, and a driving gear is meshed and connected to the inner ring surface of the inner gear ring, and the driving gear is rotatably connected to the cover plate; The outer ring surface of the inner gear ring is provided with outer bevel teeth, the inner ring surface of the conveying fixed plate is rotatably connected with an external ratchet that matches the outer bevel teeth, the inner ring surface of the driving gear is provided with inner bevel teeth arranged opposite to the outer bevel teeth, the outer ring surface of the axis column is rotatably connected with an internal ratchet that matches the inner bevel teeth, and the cover plate is provided with a through hole connected to the flow groove.

[0011] Furthermore, a filter assembly is provided at one end of the traveling axle, and the filter assembly includes an annular filter screen fixed to the inner annular surface of the outer end cover, and a collecting frame located outside the outer end cover, and an arc-shaped scraper is connected to the outer wall of the traveling axle near the end of the annular filter screen, and the arc-shaped scraper is in a circumferential array, and the arc-shaped scraper is in contact with the annular filter screen, and a slag discharge support frame in an equal circumferential array is connected to the side of the outer end cover facing the annular filter screen, and the slag discharge support frame is rotatably connected to the traveling axle; A storage cavity is arranged inside the collecting frame, and a sloped platform extending into the outer end cover is connected to one side of the collecting frame close to the annular filter screen. A slag discharge trough connected to the storage cavity is arranged inside the slag discharge support frame, and one end of the slag discharge trough passes through the traveling axle and cooperates with the arc scraper.

[0012] Furthermore, a rotary joint is rotatably connected to the outer ring surface of the collecting frame, a joint seat threadedly connected to the rotary joint is connected to the side of the outer end cover close to the collecting frame, a first annular cavity is provided inside the outer end cover, a rotating ring is rotatably connected inside the first annular cavity, a through hole corresponding to the slag discharge groove is provided on the rotating ring, and the slag discharge support frame and the rotating ring are provided with inclined surfaces that match each other; A reset cavity communicating with the first annular cavity is provided on one side of the first annular cavity, a reset plate located in the reset cavity is connected to the rotating ring, and the reset plate and the reset cavity are connected via a spring.

[0013] Furthermore, one side of the collection rack is connected to a support platform extending into the external flow chamber, the top of the support platform is connected to an array of fan-shaped bosses with equal spacing, a metal plate is connected between two adjacent fan-shaped bosses, the top of the fan-shaped bosses is connected to a protective cover, the side of the protective cover close to the fan-shaped bosses is rotatably connected to a rotating disk, one side of the rotating disk is connected to a permanent magnet corresponding to the position of the metal plate, and the rotating disk and the protective cover are both provided with through holes connected to the flow groove.

[0014] Furthermore, one side of the rotating disk is connected to an arc plate located in the fan-shaped boss, and the arc plate is rotatably connected to the fan-shaped boss. One side of the rotating disk is connected to an adjustment rod that passes through the collecting rack. The outer wall of the adjusting rod is connected to a sealing disk located in the storage cavity. The sealing disk is provided with a through hole connected to the slag discharge groove. The side of the adjusting rod away from the rotating disk is connected to a manual disk, and the manual disk is connected to a ball spring pin. One side of the collecting rack is provided with a positioning hole that matches the ball spring pin.

[0015] Furthermore, a second annular cavity is provided on one side of the traveling axle close to the filter assembly, a blocking ring is slidably connected in the second annular cavity, and the blocking ring and the second annular cavity are connected via a spring; A one-way valve is internally connected to one end of the flow tank close to the filter assembly.

[0016] Furthermore, a heat dissipation component is connected to one side of the wheel frame, and the heat dissipation component includes a flow tube fixed on the wheel frame, and bent heat dissipation fins are connected to the outer wall of the flow tube. An open groove corresponding to the heat dissipation fin is opened on the edge of the wheel frame, and both ends of the flow tube are connected to the oil pipeline.

[0017] Furthermore, another of the oil pipelines is connected to an oil inlet pipe and a two-position three-way valve, and the top of the two-position three-way valve is connected to an oil outlet pipe.

[0018] Furthermore, a stirring ring is connected to one side of the bearing inner ring located at the inner flow cavity, and a stirring rod is connected to the stirring ring.

[0019] Furthermore, a mounting ring is connected to the outer ring surface of the bearing, and the wheel bracket includes a fixed connecting frame and a movable connecting frame, and the movable connecting frame fixes the mounting ring to the fixed connecting frame through bolts.

[0020] Compared with the existing known technologies, the technical solution provided by the present invention has the following significant effects: 1. The device sets a conveying component inside the traveling axle, so that the internal lubricating oil can be moved, which improves the fluidity of the lubricating oil. At the same time, through the coordinated setting with the oil pipeline, multiple flow chambers are connected, so that the internal lubricating oil can circulate and flow, which improves the overall lubrication capacity and reduces the temperature difference between the driving shaft and the driven shaft.

[0021] 2. This device is equipped with a filter assembly at one end of the traveling axle, which has the function of filtering particulate impurities first and then performing magnetic filtration, thereby improving the filtering capacity of the lubricating oil. At the same time, the inner ring of the bearing will drive the stirring ring to rotate, which can stir up the settled impurities to prevent the accumulation of impurities and improve the efficiency of impurity filtration.

[0022] 3. This device is equipped with a heat dissipation component on one side of the wheel frame. When the lifting trolley moves, the air flow will flow between the two heat dissipation fins, which plays a role in cooling the lubricating oil in the flow tube, avoiding the situation where the lubricating oil temperature is too high and the lubrication performance is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the wheel frame and the traveling axle structure of the present invention; Figure 2 It is a schematic diagram of the wheel frame and wheel support structure in the present invention; Figure 3 is a schematic diagram of a conveying assembly in the present invention; Figure 4A cross-sectional view of the traveling axle and traveling wheel structure of the present invention; Figure 5 It is a schematic diagram of the structure of the traveling axle and the filter assembly in the present invention; Figure 6 is a schematic diagram of the metal plate and permanent magnet structure in the present invention; Figure 7 is a schematic diagram of the first annular cavity and the rotating ring structure in the present invention; Figure 8 It is a schematic diagram of the collecting rack and the sealing disk structure in the present invention; Fig. 9 It is a schematic diagram of the wheel frame and heat dissipation assembly structure of the present invention; Fig.10 It is a schematic diagram of the flow of lubricating oil in the present invention.

[0024] Reference numerals: 101, wheel frame; 102, travel axle; 103, travel wheel; 104, wheel bracket; 105, bearing; 106, inner end cover; 107, outer end cover; 108, inner flow cavity; 109, outer flow cavity; 110, oil pipeline; 111, flow trough; 112, conveying assembly; 113, conveying fixed plate; 114, cover plate; 115, crescent plate; 116, axis column; 117, inner gear ring; 118, driving gear; 119, outer bevel gear; 120, outer ratchet; 121, inner bevel gear; 122, inner ratchet; 123, through hole; 201, filter assembly; 202, annular filter; 203, collection frame; 204, arc scraper; 205, slag discharge support frame; 206, storage cavity; 207, inclined table; 208, slag discharge trough; 301, rotary joint; 302, joint seat; 303, first annular cavity; 304, rotating ring; 305, reset plate; 306, reset cavity; 401, support platform; 402, fan-shaped boss; 403, metal plate; 404, protective cover; 405, rotating disk; 406, permanent magnet; 407, arc plate; 408, adjustment rod; 409, sealing disk; 410, manual disk; 411, ball spring pin; 412, positioning hole; 501, second annular cavity; 502, blocking ring; 503, one-way valve; 601, flow tube; 602, cooling fin; 603, opening groove; 604, oil inlet pipe; 605, two-position three-way valve; 606, oil outlet pipe; 701, stirring ring; 702, mounting ring; 703, fixed connecting frame; 704, movable connecting frame. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Depend on Figures 1 to 10 The invention provides a wheel frame 101, a traveling axle 102 at both ends of the bottom of the wheel frame 101, and a traveling wheel 103 sleeved on the traveling axle 102. The wheel frame 101 is installed on a mobile vehicle of a lifting device, and the traveling wheel 103 at the bottom moves along the track. The two ends of the bottom of the wheel frame 101 are connected with a wheel bracket 104. The two ends of the traveling axle 102 are connected to the wheel bracket 104 through bearings 105. The two ends of the traveling axle 102 are installed on the wheel bracket 104 through bearings 105. The two ends of the bearing 105 are provided with inner end covers 104 fixedly connected to the wheel bracket 104. 6 and the outer end cover 107, the inner end cover 106 and the outer end cover 107 play a protective role, one end of one of the traveling axles 102 extends out of the outer end cover 107, the end extending out of the outer end cover 107 is the driving shaft, and the end not extending out of the outer end cover 107 is the driven shaft, the driving shaft is used to connect with the driving device inside the mobile vehicle, and is used to drive the lifting trolley to move, the two ends of the bearing 105 are provided with an inner flow cavity 108 and an outer flow cavity 109, the inner flow cavity 108 and the outer flow cavity 109 are filled with lubricating oil to reduce friction, and the inner flow cavity 108 is located on the side close to the traveling wheel 103.

[0027] When in use, the oil chambers at both ends of the driving axle 102 are separately arranged, and the space for the internal lubricating oil to flow is limited, which will cause the lubrication and cooling capabilities to be reduced. The following provides a structure to improve the flow capacity and cooling capacity: two adjacent inner flow chambers 108 are connected by an oil pipeline 110, refer to Fig.10An oil pipeline 110 is connected between the inner flow chambers 108 on different travel axles 102. The outer flow chamber 109 lubricates the bearing 105 after passing through the bearing 105, and then enters another inner flow chamber 108 through the oil pipeline 110. The interior of each travel axle 102 is provided with a flow groove 111, and both ends of the flow groove 111 are located in the outer flow chamber 109. The outer flow chambers 109 on the same travel axle 102 are connected through the flow groove 111, and the lubricating oil between the two outer flow chambers 109 can flow. The interior of the travel axle 102 is provided with a conveying component 112, and the conveying component 1 When 12 moves, it can promote the lubricating oil in the flow groove 111 to flow and improve the flow capacity. The driving shaft 102 is divided into a driving shaft and a driven shaft. Since the driving shaft is connected to the driving device, the heat generated is greater than the driven shaft. The temperature difference between the driving shaft and the driven shaft can be balanced by the flowing lubricating oil. The conveying component 112 includes a conveying fixed disk 113 fixedly connected to the inner flow cavity 108, and a cover plate 114 symmetrically rotated and connected to the inside of the conveying fixed disk 113. The conveying fixed disk 113 is fixed in the inner flow cavity 108, and the inner annular surface rotates symmetrically with the cover plate 114, and the cover plate 114 is fixedly connected to the driving shaft 102. Figure 3 , a crescent plate 115 and an axis column 116 are fixedly connected between the symmetrical cover plates 114, an inner gear ring 117 arranged coaxially is rotatably connected between the cover plates 114, an eccentrically arranged driving gear 118 is rotatably connected between the cover plates 114, the inner gear ring 117 and the driving gear 118 rotate between the symmetrical cover plates 114, one side of the driving gear 118 is meshed with the inner gear, and the principle of the conveying component 112 conveying lubricating oil is the same as that of the internal gear pump; refer to Figure 3The outer ring surface of the inner gear ring 117 is provided with an outer bevel tooth 119, and the inner ring surface of the conveying fixed disk 113 is rotatably connected with an outer pawl 120 that matches the outer bevel tooth 119. The outer pawl 120 and the conveying fixed disk 113 are connected by a spring, and the spring pushes the outer pawl 120 to press against the bevel tooth of the outer bevel tooth 119, so that the inner gear ring 117 can only rotate in one direction. The inner ring surface of the driving gear 118 is provided with an inner bevel tooth 121 that is arranged opposite to the outer bevel tooth 119, and the outer ring surface of the shaft column 116 is rotatably connected with an inner pawl 122 that matches the inner bevel tooth 121, and the inner pawl 122 and the shaft column 116 are connected by a spring, and the spring pushes the inner pawl 122 to press against the inner bevel tooth 121, so that the driving gear 118 can only rotate in one direction, and the rotation direction is the same as that of the inner gear ring 11 On the contrary, the cover plate 114 is provided with a through hole 123 connected with the flow groove 111. The through hole 123 is used for the lubricating oil in the flow groove 111 to enter the conveying assembly 112 and be discharged from the other side. When the traveling axle 102 rotates, the inner gear ring 117 will be resisted by the outer ratchet 120 and cannot rotate, while the internal driving gear 118 will be driven by the traveling axle 102 to rotate, thereby driving the flow of lubricating oil at both ends of the cover plate 114, and the principle is the same as that of the gear pump; when the traveling axle 102 reverses, the driving gear 118 will be restricted by the internal ratchet 122 and will rotate with the rotation of the traveling axle 102. Since the driving gear 118 cannot rotate, the inner gear ring 117 will rotate together with the traveling axle 102, and the situation that the internal lubricating oil flows in the opposite direction due to the reverse rotation of the traveling axle 102 will not occur, and the lubricating oil has the effect of driving the lubricating oil in the same direction.

[0028] During use, it is inevitable that external dust, sand and other pollutants will enter the wheel set, affecting the lubrication effect. The following provides a structure that can intercept impurities such as sand: Specifically, refer to Figure 5 and Figure 6A filter assembly 201 is provided at one end of the traveling axle 102, and the filter assembly 201 includes an annular filter screen 202 fixed to the inner ring surface of the outer end cover 107, and a collecting frame 203 located outside the outer end cover 107. During the flow of lubricating oil, the annular filter screen 202 can intercept impurities in the liquid. A circular array of arc scrapers 204 are connected to the outer ring surface of the traveling axle 102 near one end of the annular filter screen 202. When the traveling axle 102 rotates, the intercepted impurities will be scraped toward the center of the circle by the arc scraper 204. The slag discharge groove 208 is located on the arc scraper 204. At the connection with the traveling axle 102, the arc-shaped scraper 204 contacts the annular filter screen 202, and the outer end cover 107 is connected to a slag discharge support frame 205 with an equal circumferential array on the side facing the annular filter screen 202. The interior of the slag discharge support frame 205 is provided with a slag discharge groove 208, and the scraped impurities will enter the slag discharge groove 208. The slag discharge support frame 205 is rotatably connected to the traveling axle 102. Since the two are rotatably connected, only when the slag discharge groove 208 on the slag discharge support frame 205 and the traveling axle 102 are aligned, can the impurities be transported into the storage chamber 206 through the slag discharge groove 208; The collecting rack 203 is provided with a storage chamber 206 for storing scraped impurities. The collecting rack 203 is connected to a sloped platform 207 extending into the outer end cover 107 on one side close to the annular filter screen 202. The slag discharge support frame 205 is provided with a slag discharge trough 208 connected to the storage chamber 206. The scraped impurities enter the storage chamber 206 through the slag discharge trough 208. One end of the slag discharge trough 208 passes through the traveling axle 102 and cooperates with the arc scraper 204. It should be noted that the traveling axle 102 may be reversed. At this time, the arc scraper 204 cannot scrape the impurities to the slag discharge trough 208, and the impurities still remain on the annular filter screen 202. As the slag discharge trough 208 resumes forward rotation, the impurities can continue to be scraped into the slag discharge trough 208.

[0029] When impurities are stored in the storage chamber 206, it is necessary to clean the impurities regularly. The following provides a structure that facilitates the removal of the collection rack 203: Figures 5 to 8The outer ring surface of the collection rack 203 is rotatably connected with a rotary joint 301, and the side of the outer end cover 107 close to the collection rack 203 is connected with a joint seat 302 threadedly connected with the rotary joint 301. The collection rack 203 can be quickly disassembled and assembled on the joint seat 302 through the rotary joint 301, which improves the convenience of cleaning. The inner part of the outer end cover 107 is provided with a first annular cavity 303, and the inner part of the first annular cavity 303 is rotatably connected with a rotating ring 304. The rotating ring 304 A through hole 123 corresponding to the slag discharge groove 208 is provided on the rotating ring 304. Only when the through hole 123 on the rotating ring 304 is aligned with the slag discharge groove 208 can the impurities or lubricating oil be discharged. The slag discharge support frame 205 and the rotating ring 304 are provided with mutually matching inclined surfaces. After the inclined surface platform 207 is inserted into the first annular cavity 303, the inclined surface on the inclined surface platform 207 contacts the inclined surface on the rotating ring 304, which can push the rotating ring 304 to rotate, so that the through hole 123 is aligned with the slag discharge groove 208. The following provides a structure that enables the rotating ring 304 to be reset: a reset chamber 306 connected to the first annular cavity 303 is provided on one side of the first annular cavity 303, the reset chamber 306 is connected to the first annular cavity 303, and is used to accommodate a reset plate 305. The rotating ring 304 is connected to a reset plate 305 located in the reset chamber 306, and the reset plate 305 and the reset chamber 306 are connected by a spring. When the collecting frame 203 is removed, the spring will push the rotating ring 304 to rotate, so that the through hole 123 on the rotating ring 304 is staggered with the slag discharge groove 208 to prevent the internal lubricating oil from leaking out.

[0030] After long-term use, the metal parts inside the wheel set will rub against each other, generating tiny metal debris. Since these metal debris are too small, they are not easily captured by the annular filter 202. The following provides a structure capable of capturing these metal debris: Specifically, refer to Figure 6 and Figure 8, one side of the collecting frame 203 is connected with a support platform 401 extending into the outer flow chamber 109, and a circular hole corresponding thereto is opened on one side of the outer end cover 107 to facilitate the insertion of the support platform 401, and the top of the support platform 401 is connected with a fan-shaped boss 402 in an equidistant array, and the fan angle of the fan-shaped boss 402 is greater than the distance between the two fan-shaped bosses 402, so that the fan-shaped boss 402 can accommodate the arc plate 407, and a metal plate 403 is connected between two adjacent fan-shaped bosses 402, and the top of the fan-shaped boss 402 is connected with a protective cover 404, and the protective cover 404 is rotatably connected to a rotating disk 405 on one side close to the fan-shaped boss 402, and the bottom of the rotating disk 405 is connected with a permanent magnet 406 and an arc plate 407, which can drive it to rotate, and one side of the rotating disk 405 is connected with a permanent magnet 406 corresponding to the position of the metal plate 403, and when the lubricating oil flows, the flow trajectory is referenced Figure 5 The magnetic debris in the lubricating oil will be adsorbed on the metal plate 403, which plays a role in collecting the metal debris. The rotating disk 405 and the protective cover 404 are both provided with a through hole 123 connected to the flow groove 111, and the lubricating oil flows from the through hole 123 at the top to the flow groove 111.

[0031] After using for a period of time, it is also necessary to clean the metal debris adsorbed on the metal plate 403. Since the metal debris is too small, it will fall off due to shaking, which will affect the cleaning situation. The following provides a structure that is convenient for cleaning the metal debris: Specifically, refer to Figure 6 and Figure 8One side of the rotating disk 405 is connected to an arc plate 407 located in the fan-shaped boss 402. The arc plate 407 can rotate along with the sealing disk 409, thereby rotating to the area between two adjacent fan-shaped bosses 402 to seal the area between the two fan-shaped bosses 402 to prevent liquid leakage. The arc plate 407 is rotatably connected to the fan-shaped boss 402. One side of the rotating disk 405 is connected to an adjustment rod 408 that penetrates the collection rack 203. The adjustment rod 408 08 can drive the rotating disk 405 to rotate, the outer wall of the adjusting rod 408 is connected with a sealing disk 409 located in the storage chamber 206, and the sealing disk 409 is provided with a through hole 123 connected to the slag discharge groove 208. When the through hole 123 is aligned with the flow groove 111, the lubricating oil can enter the flow groove 111. The side of the adjusting rod 408 away from the rotating disk 405 is connected with a manual disk 410, and a hand wheel is provided on the manual disk 410 for manual rotation. When the collecting rack 203 is removed, the manual disk 410 is used to drive the rotating disk 405 to rotate. The rotating disk 405 drives the permanent magnet 406 and the arc plate 407 at one end to rotate. The arc plate 407 seals the area between the two fan-shaped bosses 402. The through hole 123 at the top is staggered with the flow groove 111 to prevent the internal lubricating oil from flowing out. At the same time, the position of the permanent magnet 406 and the metal plate 403 is staggered, so that the magnetism at the metal plate 403 is weakened, and the metal plate 403 is adsorbed. The metal debris on the collecting rack 203 will dissolve into the lubricating oil, so there is no need to manually scrape and clean the metal plate 403, which improves convenience. The manual disk 410 is connected with a ball spring pin 411, and one side of the collecting rack 203 is provided with a positioning hole 412 that matches the ball spring pin 411. The ball spring pin 411 and the positioning hole 412 are used together to facilitate positioning. In another embodiment, the ball spring pin 411 is a bolt, and the positioning hole 412 is a bolt hole, and the position is fixed by the bolt.

[0032] When the support platform 401 is pulled out, the lubricating oil in the outer flow cavity 109 may leak. The following is a structure to prevent the lubricating oil from leaking: Figure 5 A second annular cavity 501 is provided on one side of the traveling axle 102 close to the filter assembly 201, and a blocking ring 502 is slidably connected in the second annular cavity 501. The spring pushes the blocking ring 502 to move downward. When the support platform 401 is pulled out, the blocking ring 502 will be blocked in the area between the traveling axle 102 and the outer end cover 107 to block the flow of liquid. The blocking ring 502 and the second annular cavity 501 are connected by a spring. In another embodiment, when the blocking ring 502 and the protective cover 404 are in contact, they are rotationally connected to reduce friction; A one-way valve 503 is internally connected to one end of the flow groove 111 close to the filter assembly 201 to prevent the lubricating oil in the flow groove 111 from leaking out.

[0033] When in use, the heat of the traveling axle 102 will be transferred to the lubricating oil, causing the temperature of the lubricating oil to rise. The following provides a structure for cooling the lubricating oil: Specifically, refer to Fig. 9 , a heat dissipation component is connected to one side of the wheel frame 101, and the heat dissipation component includes a flow pipe 601 fixed on the wheel frame 101. The lubricating oil in the oil pipeline 110 will enter the flow pipe 601 and be cooled by the heat dissipation fins 602 on the outer wall. The outer wall of the flow pipe 601 is connected with a bent heat dissipation fin 602, and the heat dissipation fin 602 is provided with a plurality of bends for improving the contact with the airflow. An opening groove 603 corresponding to the heat dissipation fin 602 is provided on the edge of the wheel frame 101, and the opening groove 603 is used for the movement of airflow. When the crane moves, the airflow on both sides will enter between the two heat dissipation fins 602 through the opening groove 603, so as to exchange heat. The two ends of the flow pipe 601 are connected to one of the oil pipelines 110, and the oil pipeline 110 is provided with two, reference Fig.10 The other oil pipeline 110 is connected to an oil inlet pipe 604 and an oil outlet pipe 606 .

[0034] After the lubricating oil has been used for a certain period of time, it needs to be replaced. At the same time, as the internal lubricating oil is used, it will decrease. The following provides a structure for controlling the internal lubricating oil: Specifically, refer to Figure 1 The other oil pipeline 110 is connected with an oil inlet pipe 604 and a two-position three-way valve 605. The oil inlet pipe 604 is connected to an external oil supply device. The oil inlet pipe 604 is always in a constant pressure oil supply state to adapt to the situation of reduced evaporation of the internal lubricating oil. The top of the two-position three-way valve 605 is connected with an oil outlet pipe 606. In normal use, the two-position three-way valve 605 controls the oil outlet pipe 606 to be disconnected, so that the internal lubricating oil can circulate automatically. When the lubricating oil needs to be replaced, refer to Figure 1 The two-position three-way valve 605 controls the oil outlet pipe 606 to be connected with the oil pipeline 110, and the oil pipeline 110 at the bottom of the oil inlet pipe 604 is disconnected from the oil pipeline 110 at the bottom of the oil outlet pipe 606. Since the lubricating oil can only move in one direction, the newly entered lubricating oil can circulate, thereby discharging the old lubricating oil.

[0035] Specifically, refer to Figure 5The inner ring of the bearing 105 is located on one side of the inner flow chamber 108 and is connected to a stirring ring 701. When the bearing 105 rotates, the inner ring drives the stirring ring 701 to rotate, thereby stirring up the impurities in the inner flow chamber 108 for collection by the filter assembly 201 to prevent the accumulation of impurities. A stirring rod is connected to the stirring ring 701.

[0036] When the wheel 103 is worn, it needs to be replaced and disassembled. The following provides a structure that facilitates disassembly: Specifically, refer to Figure 2 and Figure 4 The outer ring surface of the bearing 105 is connected with a mounting ring 702, and the mounting ring 702 is sleeved on the bearing 105, so as to be easily removed from the split wheel bracket 104. The wheel bracket 104 includes a fixed connecting frame 703 and a movable connecting frame 704. The movable connecting frame 704 fixes the mounting ring 702 to the fixed connecting frame 703 by bolts, and the bolt connection is used to facilitate the disassembly and assembly of the running wheel 103.

[0037] When the present invention is in use, the wheel frame 101 moves on the track through the running wheel 103 at the bottom, and the airflow flows through the two sides of the wheel frame 101, and contacts with the heat dissipation fins 602 on one side of the wheel frame 101 during the flow, which cools the lubricating oil in the flow tube 601. When the running axle 102 rotates, the internal conveying assembly 112 rotates, which can drive the lubricating oil in the inner flow chamber 108 and the outer flow chamber 109 to flow in one direction. The flow state is referred to as Fig.10 , which improves the flow capacity of the lubricating oil. At the same time, the oil inlet pipe 604 is in a low-pressure oil supply state, which is used to keep the amount of internal lubricating oil constant. When the lubricating oil flows, the internal impurities will be captured by the filter component 201, and the larger impurities will be intercepted first. The small metal debris will be adsorbed on the metal plate 403, and the collected impurities can be cleaned by disassembling the collection rack 203. Since the internal lubricating oil moves in one direction, it is convenient to replace the new lubricating oil through the two-position three-way valve 605.

[0038] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A crane wheel assembly of a modular combined structure, comprising a wheel frame (101), a driving axle (102) located at both ends of the bottom of the wheel frame (101), and a driving wheel (103) sleeved on the driving axle (102), characterized in that: The two ends of the bottom of the wheel frame (101) are connected to wheel brackets (104), the two ends of the driving axle (102) are connected to the wheel bracket (104) via bearings (105), the two ends of the bearing (105) are provided with inner end covers (106) and outer end covers (107) fixedly connected to the wheel bracket (104), one of the driving axles (102) is externally connected to a driving device, one end of the driving axle (102) connected to the external driving device extends out of the outer end cover (107), the two ends of the bearing (105) are provided with an inner flow cavity (108) and an outer flow cavity (109), the inner flow cavity (108) is located on a side close to the driving wheel (103); Two adjacent inner flow chambers (108) are connected via an oil delivery pipeline (110); a flow groove (111) is provided inside the traveling axle (102); both ends of the flow groove (111) are located inside the outer flow chamber (109); a conveying assembly (112) is provided inside the traveling axle (102); the conveying assembly (112) comprises a conveying fixed disk (113) fixedly connected to the inner flow chamber (108); and a cover plate (114) symmetrically rotatably connected to the inside of the conveying fixed disk (113); a crescent plate (115) and an axis column (116) are connected between the two symmetrical cover plates (114); an inner gear ring (117) coaxially arranged is rotatably connected between the cover plates (114); a driving gear (118) is meshedly connected to one side of the inner ring surface of the inner gear ring (117); and the driving gear (118) is rotatably connected to the cover plate (114); The outer ring surface of the inner gear ring (117) is provided with outer bevel teeth (119); the inner ring surface of the conveying fixed plate (113) is rotatably connected to an outer pawl (120) that matches the outer bevel teeth (119); the inner ring surface of the driving gear (118) is provided with inner bevel teeth (121) that are arranged opposite to the outer bevel teeth (119); the outer ring surface of the shaft column (116) is rotatably connected to an inner pawl (122) that matches the inner bevel teeth (121); and the cover plate (114) is provided with a through hole (123) that is connected to the flow groove (111).

2. A modular combined structure lifting wheel assembly according to claim 1, characterized in that: A filter assembly (201) is provided at one end of the traveling axle (102), the filter assembly (201) comprising an annular filter screen (202) fixed to the inner annular surface of the outer end cover (107), and a collecting frame (203) located outside the outer end cover (107); an arc-shaped scraper (204) is connected to the outer wall of one end of the traveling axle (102) close to the annular filter screen (202); the arc-shaped scraper (204) is arranged in a circular array, and the arc-shaped scraper (204) is in contact with the annular filter screen (202); a slag discharge support frame (205) in an equal circular array is connected to the side of the outer end cover (107) facing the annular filter screen (202); the slag discharge support frame (205) is rotatably connected to the traveling axle (102); A storage chamber (206) is provided inside the collecting frame (203); a side of the collecting frame (203) close to the annular filter screen (202) is connected to an inclined platform (207) extending into the outer end cover (107); a slag discharge trough (208) connected to the storage chamber (206) is provided inside the slag discharge support frame (205); one end of the slag discharge trough (208) passes through the traveling axle (102) and cooperates with the arc-shaped scraper (204).

3. A modular combined structure lifting wheel assembly according to claim 2, characterized in that: A rotary joint (301) is rotatably connected to the outer ring surface of the collecting frame (203); a joint seat (302) threadedly connected to the rotary joint (301) is connected to a side of the outer end cover (107) close to the collecting frame (203); a first annular cavity (303) is provided inside the outer end cover (107); a rotating ring (304) is rotatably connected inside the first annular cavity (303); a through hole (123) corresponding to the slag discharge groove (208) is provided on the rotating ring (304); and mutually matching inclined surfaces are provided on the slag discharge support frame (205) and the rotating ring (304); A reset cavity (306) communicating with the first annular cavity (303) is provided on one side thereof, and a reset plate (305) located in the reset cavity (306) is connected to the rotating ring (304), and the reset plate (305) and the reset cavity (306) are connected via a spring.

4. A modular combined structure lifting wheel assembly according to claim 3, characterized in that: One side of the collection rack (203) is connected to a support platform (401) extending into the outer flow chamber (109), the top of the support platform (401) is connected to an array of fan-shaped bosses (402) with equal spacing, a metal plate (403) is connected between two adjacent fan-shaped bosses (402), the top of the fan-shaped bosses (402) is connected to a protective cover (404), the side of the protective cover (404) close to the fan-shaped bosses (402) is rotatably connected to a rotating disk (405), one side of the rotating disk (405) is connected to a permanent magnet (406) corresponding to the position of the metal plate (403), and both the rotating disk (405) and the protective cover (404) are provided with a through hole (123) connected to the flow groove (111).

5. The modular combined structure crane wheel assembly according to claim 4, characterized in that: One side of the rotating disk (405) is connected to an arc-shaped plate (407) located in the fan-shaped boss (402), and the arc-shaped plate (407) is rotatably connected to the fan-shaped boss (402). One side of the rotating disk (405) is connected to an adjustment rod (408) that passes through the collection rack (203). The outer wall of the adjustment rod (408) is connected to a sealing disk (409) located in the storage cavity (206), and the sealing disk (409) is provided with a through hole (123) that is connected to the slag discharge groove (208). The side of the adjustment rod (408) away from the rotating disk (405) is connected to a manual disk (410), and the manual disk (410) is connected to a ball spring pin (411). One side of the collection rack (203) is provided with a positioning hole (412) that matches the ball spring pin (411).

6. A modular combined structure crane wheel assembly according to claim 5, characterized in that: A second annular cavity (501) is provided on a side of the traveling axle (102) close to the filter assembly (201), a blocking ring (502) is slidably connected in the second annular cavity (501), and the blocking ring (502) and the second annular cavity (501) are connected via a spring; A one-way valve (503) is internally connected to one end of the flow groove (111) close to the filter assembly (201).

7. A modular combined structure crane wheel assembly according to claim 6, characterized in that: A heat dissipation component is connected to one side of the wheel frame (101), the heat dissipation component comprising a flow tube (601) fixed to the wheel frame (101), a bent heat dissipation fin (602) connected to the outer wall of the flow tube (601), an open groove (603) corresponding to the heat dissipation fin (602) is provided on the edge of the wheel frame (101), and both ends of the flow tube (601) are connected to the oil pipeline (110).

8. The modular combined structure crane wheel assembly according to claim 7, characterized in that: The other oil delivery pipeline (110) is connected to an oil inlet pipe (604) and a two-position three-way valve (605), and the top of the two-position three-way valve (605) is connected to an oil outlet pipe (606).

9. A modular combined structure crane wheel assembly according to claim 8, characterized in that: A stirring ring (701) is connected to the side of the inner ring of the bearing (105) located in the inner flow cavity (108), and a stirring rod is connected to the stirring ring (701).

10. A lifting wheel assembly of modular combined structure according to claim 9, characterized in that: The outer ring surface of the bearing (105) is connected to a mounting ring (702), and the wheel bracket (104) comprises a fixed connecting frame (703) and a movable connecting frame (704), and the movable connecting frame (704) fixes the mounting ring (702) to the fixed connecting frame (703) by bolts.

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