A hoisting wheel set with a modular combined structure

Abstract

The present invention discloses a modular combined structure hoisting wheel set, which relates to the technical field of hoisting wheel sets and includes a wheel frame, traveling axles located at both ends of the bottom of the wheel frame, and traveling wheels sleeved on the traveling axles. Wheel brackets are connected to both ends of the bottom of the wheel frame. Both ends of the traveling axles are connected to the wheel brackets through bearings. Inner end covers and outer end covers fixedly connected to the wheel brackets are provided at both ends of the bearings. One of the traveling axles is externally connected to a driving device, and one end of the traveling axle of the externally connected driving device extends out of the outer end cover. Inner flow cavities and outer flow cavities are provided at both ends of the bearings, and the inner flow cavities are located on the side close to the traveling wheels. The modular combined structure hoisting wheel set of the present invention enables the internal lubricating oil to circulate and flow, improves the overall lubrication ability, and reduces the temperature difference between the driving shaft and the driven shaft at the same time.

Description

Technical Field

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

[0002] The modular lifting wheel set is a specially designed heavy transportation device, which consists of multiple independent and interchangeable modules. Each module usually contains a set of wheels and axles, and can be connected to other modules to meet the transportation requirements of goods with different sizes and weights. This type of wheel set is widely used in the transportation of overweight and extra-large goods such as wind turbine components, large mechanical equipment, and prefabricated building structures.

[0003] The Chinese patent with the application number 202311357966.6 discloses a crane wheel set. The structure includes a wheel shaft. A wheel is fixed to the right end of the wheel shaft. Bearing assemblies are assembled on the wheel shafts on both sides of the wheel. The bearing assembly includes a bearing housing. A bearing is provided in the bearing housing. The bearing is fixed on the wheel shaft. A through cover is detachably provided at one end of the bearing housing close to the wheel. A blind cover is detachably fixed at the end of the bearing housing away from the wheel. An oil nozzle for adding lubricating oil is provided on the upper end of the blind cover. A through hole is opened at the lower end of the through cover and an oil drainage mechanism is provided in the through hole. The oil drainage mechanism includes a horizontally arranged oil drainage shaft. A shoulder is provided at the right end of the oil drainage shaft. The oil drainage shaft is detachably fixed to the through cover. A horizontally arranged oil drainage cavity is provided on the oil drainage shaft. The left end of the oil drainage shaft is open. An oil drainage hole is opened at the right end of the oil drainage shaft. The oil drainage hole communicates with the oil drainage cavity. An oil groove corresponding to the oil drainage hole is provided on the inner side of the through cover. The above device is convenient for discharging the old lubricating oil, avoiding the situation of mixing new oil and old oil.

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

[0005] The current lifting wheel sets still have the following problems during use:

[0006] 1. The overall structure is compact. A lubricating oil cavity is provided on each wheel set to facilitate the individual installation and disassembly of each wheel set. As a result, the fluidity of the lubricating oil in the lubricating oil cavity is restricted, and it cannot play a good lubricating role.

[0007] 2. Inevitably, pollutants such as dust and sand grains will enter the inside of the wheel set. These external impurities may mix into the lubricating oil. At the same time, the metal components inside the wheel set (such as bearings, axles, etc.) will rub against each other. Over time, the metal surface will gradually wear, generating tiny metal debris. These debris and impurities will exacerbate the friction between the internal parts of the wheel set and reduce the service life of the components.

[0008] 3. After long-term use, the heat generated by friction will cause the temperature of the lubricating oil to rise. Excessive oil temperature will accelerate the aging and performance decline of the lubricating oil, and may even cause problems such as poor oil quality and lubrication failure.

[0009] Therefore, it is necessary to propose a hoisting wheel set with a modular combined structure to solve the above problems. Summary of the Invention

[0010] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a hoisting wheel set with a modular combined structure to solve the problems raised in the above background technology.

[0011] The technical solution it adopts is that the present invention includes a wheel frame, a traveling axle located at both ends of the bottom of the wheel frame, and traveling wheels sleeved on the traveling axle. Wheel brackets are connected to both ends of the bottom of the wheel frame. Both ends of the traveling axle are connected to the wheel brackets through bearings. Inner end covers and outer end covers fixedly connected to the wheel brackets are provided at both ends of the bearings. One of the traveling axles is externally connected to a driving device, and one end of the traveling axle of the externally connected driving device extends out of the outer end cover. Inner flow cavities and outer flow cavities are provided at both ends of the bearings. The inner flow cavity is located on the side close to the traveling wheel;

[0012] Adjacent two of the inner flow cavities are connected by an oil delivery pipeline. Flow grooves are provided inside the traveling axle. Both ends of the flow grooves are located in the outer flow cavities. A conveying component is provided inside the traveling axle. The conveying component includes a conveying fixed disk fixedly connected to the inner flow cavity, covers symmetrically rotatably connected inside the conveying fixed disk. A crescent plate and an axle center column are connected between the two symmetric covers. An inner toothed ring coaxially arranged is rotatably connected between the covers. A driving gear is meshed and connected to one side of the inner ring surface of the inner toothed ring. The driving gear is rotatably connected to the cover;

[0013] External inclined teeth are provided on the outer ring surface of the inner toothed ring. An external pawl matched with the external inclined teeth is rotatably connected to the inner ring surface of the conveying fixed disk. Inner inclined teeth opposite to the external inclined teeth are provided on the inner ring surface of the driving gear. An internal pawl matched with the inner inclined teeth is rotatably connected to the outer ring surface of the axle center column. Through holes communicating with the flow grooves are provided on the covers.

[0014] Further, one end of the driving axle is provided with a filtering assembly, the filtering assembly includes an annular filter screen fixed to the inner ring surface of the outer end cover and a collection rack located outside the outer end cover. An arc-shaped scraping plate is connected to the outer wall of the driving axle near one end of the annular filter screen. The arc-shaped scraping plates are arranged in a circumferential array and are in contact with the annular filter screen. The side of the outer end cover facing the annular filter screen is connected with slag discharge support frames arranged in an equal circumferential array, and the slag discharge support frames are rotatably connected to the driving axle;

[0015] A storage cavity is arranged inside the collection rack. The side of the collection rack close to the annular filter screen is connected with an inclined surface platform extending into the outer end cover. A slag discharge groove communicated with the storage cavity is arranged inside the slag discharge support frame, and one end of the slag discharge groove passes through the driving axle and cooperates with the arc-shaped scraping plate.

[0016] Further, a rotary joint is rotatably connected to the outer ring surface of the collection rack. The side of the outer end cover close to the collection rack is connected with a joint seat threadedly connected to the rotary joint. A first annular cavity is arranged inside the outer end cover, and a rotating ring is rotatably connected inside the first annular cavity. Through holes corresponding to the slag discharge grooves are arranged on the rotating ring. Slant surfaces that cooperate with each other are arranged on the slag discharge support frame and the rotating ring;

[0017] A reset cavity communicated with the first annular cavity is arranged on one side of the first annular cavity. A reset plate located inside the reset cavity is connected to the rotating ring, and the reset plate and the reset cavity are connected by a spring.

[0018] Further, a support platform extending into the outer flow cavity is connected to one side of the collection rack. Sector-shaped convex platforms arranged at equal intervals are connected to the top of the support platform. A metal plate is connected between two adjacent sector-shaped convex platforms. A protective cover is connected to the top of the sector-shaped convex platform. A rotating disk is rotatably connected to the side of the protective cover close to the sector-shaped convex platform. A permanent magnet corresponding to the position of the metal plate is connected to one side of the rotating disk. Through holes communicated with the flow grooves are arranged on both the rotating disk and the protective cover.

[0019] Further, an arc-shaped plate located inside the sector-shaped convex platform is connected to one side of the rotating disk. The arc-shaped plate is rotatably connected inside the sector-shaped convex platform. An adjusting rod penetrating through the collection rack is connected to one side of the rotating disk. A sealing disk located inside the storage cavity is connected to the outer wall of the adjusting rod. A through hole communicated with the slag discharge groove is arranged on the sealing disk. A manual disk is connected to the side of the adjusting rod away from the rotating disk. A ball spring pin is connected to the manual disk. A positioning hole cooperating with the ball spring pin is arranged on one side of the collection rack.

[0020] Further, a second annular cavity is arranged on the side of the driving axle close to the filtering assembly. A blocking ring is slidably connected inside the second annular cavity, and the blocking ring and the second annular cavity are connected by a spring;

[0021] One end of the flow tank close to the filter assembly is internally connected with a check valve.

[0022] Furthermore, one side of the wheel carrier is connected with a heat dissipation assembly. The heat dissipation assembly includes a flow pipe fixed on the wheel carrier. The outer wall of the flow pipe is connected with heat dissipation fins arranged in a bent manner. An opening groove corresponding to the heat dissipation fins is formed on the edge of the wheel carrier. Both ends of the flow pipe are connected to an oil pipeline.

[0023] Furthermore, an oil inlet pipe and a two-way three-way valve are connected to the other oil pipeline. The top of the two-way three-way valve is connected with an oil outlet pipe.

[0024] Furthermore, a stirring ring is connected to one side of the inner ring of the bearing located in the inner flow cavity. Stirring rods are connected to the stirring ring.

[0025] Furthermore, a mounting ring is connected to the outer ring surface of the bearing. The wheel support includes a fixed connection frame and a movable connection frame. The movable connection frame fixes the mounting ring to the fixed connection frame through bolts.

[0026] Adopting the technical solution provided by the present invention, compared with the existing well-known technologies, it has the following remarkable effects:

[0027] 1. A conveying assembly is arranged inside the driving axle of the present device, enabling the internal lubricating oil to move, improving the fluidity of the lubricating oil. At the same time, through the cooperative setting with the oil pipeline, multiple flow cavities are connected, enabling the internal lubricating oil to circulate, improving the overall lubricating ability, and reducing the temperature difference between the driving shaft and the driven shaft.

[0028] 2. A filter assembly is arranged at one end of the driving axle of the present device, which first filters particulate impurities and then performs magnetic filtration, improving the filtering ability of the lubricating oil. At the same time, the inner ring of the bearing drives the stirring ring to rotate, which can stir up the settled impurities, preventing the accumulation of impurities and improving the efficiency of impurity filtration.

[0029] 3. A heat dissipation assembly is arranged on one side of the wheel carrier of the present device. When the lifting trolley moves, air flow will flow through between the two heat dissipation fins, playing a role in cooling the lubricating oil in the flow pipe, and avoiding the reduction of lubricating performance due to too high temperature of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structures of the wheel carrier and the driving axle in the present invention;

[0031] Figure 2 It is a schematic diagram of the structures of the wheel carrier and the wheel support in the present invention;

[0032] Figure 3 Schematic diagram of the conveying component in the present invention;

[0033] Figure 4 Cross-sectional view of the traveling axle and the traveling wheel structure in the present invention;

[0034] Figure 5 Schematic diagram of the traveling axle and the filtering component structure in the present invention;

[0035] Figure 6 Schematic diagram of the metal plate and the permanent magnet structure in the present invention;

[0036] Figure 7 Schematic diagram of the first annular cavity and the rotating ring structure in the present invention;

[0037] Figure 8 Schematic diagram of the collecting rack and the sealing disc structure in the present invention;

[0038] Figure 9 Schematic diagram of the wheel carrier and the heat dissipation component structure in the present invention;

[0039] Figure 10 Schematic diagram of the lubricating oil flow condition in the present invention.

[0040] Reference numerals:

[0041] 101, wheel carrier; 102, driving axle; 103, driving wheel; 104, wheel support; 105, bearing; 106, inner end cover; 107, outer end cover; 108, inner flow cavity; 109, outer flow cavity; 110, oil pipeline; 111, flow groove; 112, conveying assembly; 113, conveying fixing plate; 114, cover plate; 115, crescent plate; 116, axis column; 117, inner gear ring; 118, driving gear; 119, outer inclined tooth; 120, external pawl; 121, inner inclined tooth; 122, internal pawl; 123, through hole; 201, filtering assembly; 202, annular filter screen; 203, collection rack; 204, arc-shaped scraper; 205, slag discharge support frame; 206, storage cavity; 207, inclined platform; 208, slag discharge groove; 301, rotary joint; 302, joint seat; 303, first annular cavity; 304, rotating ring; 305, reset plate; 306, reset cavity; 401, support platform; 402, sector-shaped boss; 403, metal plate; 404, protective cover; 405, rotating disk; 406, permanent magnet; 407, arc-shaped plate; 408, adjusting rod; 409, sealing disk; 410, manual disk; 411, ball spring pin; 412, positioning hole; 501, second annular cavity; 502, blocking ring; 503, check valve; 601, flow pipe; 602, heat dissipation fins; 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 connection frame; 704, movable connection frame. Detailed implementation mode

[0042] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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 described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] By Figures 1 to 10Provided, including a wheel frame 101, traveling axles 102 located at both ends of the bottom of the wheel frame 101, and traveling wheels 103 sleeved on the traveling axles 102. The wheel frame 101 is installed on the moving vehicle of the lifting equipment, and the traveling wheels 103 at the bottom move along the track. Both ends of the bottom of the wheel frame 101 are connected with wheel brackets 104. Both ends of the traveling axle 102 are connected to the wheel brackets 104 through bearings 105. Both ends of the traveling axle 102 are installed on the wheel brackets 104 through bearings 105. Inner end caps 106 and outer end caps 107 fixedly connected to the wheel brackets 104 are provided at both ends of the bearing 105. The inner end caps 106 and the outer end caps 107 play a protective role. One end of one of the traveling axles 102 extends out of the outer end cap 107. The one extending out of the outer end cap 107 is the driving shaft, and the one not extending out of the outer end cap 107 is the driven shaft. The driving shaft is used to be connected to the driving device inside the moving vehicle to drive the lifting trolley to move. Inner flow cavities 108 and outer flow cavities 109 are provided at both ends of the bearing 105. The inner flow cavities 108 and the outer flow cavities 109 are filled with lubricating oil to reduce friction. The inner flow cavity 108 is located on the side close to the traveling wheel 103.

[0044] During use, each oil cavity at both ends of the traveling axle 102 is separately arranged, and the space where the internal lubricating oil can flow is limited, which will cause the reduction of lubricating and cooling capabilities. The following provides a structure for improving the flow capacity and cooling capacity: Adjacent two of the inner flow cavities 108 are connected through an oil delivery pipeline 110. Refer to Figure 10 , the inner flow cavities 108 not on the same traveling axle 102 are connected with an oil delivery pipeline 110. After passing through the bearing 105, the outer flow cavity 109 will play a lubricating role for the bearing 105, and then enter another inner flow cavity 108 through the oil delivery pipeline 110. Flow grooves 111 are opened inside the traveling axle 102. Both ends of the flow groove 111 are located in the outer flow cavity 109. The outer flow cavities 109 on the same traveling axle 102 are communicated through the flow grooves 111, and the lubricating oil between the two outer flow cavities 109 can flow. A conveying assembly 112 is provided inside the traveling axle 102. When the conveying assembly 112 acts, it can push the lubricating oil in the flow groove 111 to flow, improving the flow capacity. The traveling axle 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 that of the driven shaft. The flowing lubricating oil can balance the temperature difference between the driving shaft and the driven shaft. The conveying assembly 112 includes a conveying fixed disk 113 fixedly connected to the inner flow cavity 108, and cover plates 114 symmetrically rotatably connected inside the conveying fixed disk 113. The conveying fixed disk 113 is fixed in the inner flow cavity 108, and symmetric cover plates 114 are rotatably connected to the inner ring surface. The cover plates 114 are fixedly connected to the traveling axle 102. Refer to Figure 3, a crescent plate 115 and an axis column 116 are fixedly connected between the symmetric cover plates 114. An internally toothed 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 internally toothed ring 117 and the driving gear 118 rotate between the symmetric cover plates 114. One side of the driving gear 118 meshes with the internal gear. The principle of the conveying assembly 112 for conveying lubricating oil is the same as that of an internal gear pump;

[0045] Reference Figure 3 , an external inclined surface tooth 119 is formed on the outer ring surface of the internally toothed ring 117. An external pawl 120 matched with the external inclined surface tooth 119 is rotatably connected to the inner ring surface of the conveying fixed disk 113. The external pawl 120 and the conveying fixed disk 113 are connected by a spring. The spring pushes the external pawl 120 against the inclined surface tooth of the external inclined surface tooth 119, so that the internally toothed ring 117 can only rotate in one direction. An internal inclined surface tooth 121 opposite to the external inclined surface tooth 119 is formed on the inner ring surface of the driving gear 118. An internal pawl 122 matched with the internal inclined surface tooth 121 is rotatably connected to the outer ring surface of the axis column 116. The internal pawl 122 and the axis column 116 are connected by a spring. The spring pushes the internal pawl 122 against the internal inclined surface tooth 121, so that the driving gear 118 can only rotate in one direction, and the rotation direction is opposite to that of the internally toothed ring 117. A through hole 123 communicating with the flow groove 111 is formed in the cover plate 114. 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 driving axle 102 rotates, the internally toothed ring 117 will be blocked by the external pawl 120 and cannot rotate, while the internal driving gear 118 will be driven by the driving axle 102 to rotate, thereby driving the flow of the lubricating oil at both ends of the cover plate 114. The principle is the same as that of a gear pump; when the driving axle 102 rotates in reverse, the driving gear 118 will be restricted by the internal pawl 122 and will rotate with the rotation of the driving axle 102. Since the driving gear 118 cannot rotate, the internally toothed ring 117 will rotate together with the driving axle 102, and there will be no situation where the internal lubricating oil flows reversely due to the reverse rotation of the driving axle 102, which has the function of driving the lubricating oil in the same direction.

[0046] During use, it is inevitable that external contaminants such as dust and sand grains will enter the inside of the wheel set, affecting the lubrication effect. The following provides a structure capable of intercepting impurities such as sand grains: Specifically, reference Figure 5 and Figure 6, a filter assembly 201 is provided at one end of the driving axle 102. The filter assembly 201 includes an annular filter screen 202 fixed to the inner circumferential surface of the outer end cover 107 and a collection rack 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. An arc-shaped scraper 204 arranged in a circumferential array is connected to the outer circumferential surface of the driving axle 102 near one end of the annular filter screen 202. When the driving axle 102 rotates, the intercepted impurities will be scraped towards the center by the arc-shaped scraper 204. A slag discharge groove 208 is located at the connection between the arc-shaped scraper 204 and the driving axle 102. The arc-shaped scraper 204 is in contact with the annular filter screen 202. A slag discharge support frame 205 arranged in an equal circumferential array is connected to the side of the outer end cover 107 facing the annular filter screen 202. A slag discharge groove 208 is arranged inside the slag discharge support frame 205. The scraped impurities will enter the slag discharge groove 208. The slag discharge support frame 205 is rotatably connected to the driving axle 102. Since the two are rotatably connected, the impurities can be transported into the storage cavity 206 through the slag discharge groove 208 only when the slag discharge grooves 208 on the slag discharge support frame 205 and the driving axle 102 are aligned;

[0047] A storage cavity 206 is arranged inside the collection rack 203 for storing the scraped impurities. A slope table 207 extending into the outer end cover 107 is connected to the side of the collection rack 203 near the annular filter screen 202. A slag discharge groove 208 communicating with the storage cavity 206 is arranged inside the slag discharge support frame 205. The scraped impurities enter the storage cavity 206 through the slag discharge groove 208. One end of the slag discharge groove 208 passes through the driving axle 102 and cooperates with the arc-shaped scraper 204. It should be noted that the driving axle 102 may reverse. At this time, the arc-shaped scraper 204 cannot scrape the impurities to the slag discharge groove 208, and the impurities still stay on the annular filter screen 202. As the slag discharge groove 208 resumes forward rotation, the impurities can continue to be scraped into the slag discharge groove 208.

[0048] After the impurities are stored in the storage cavity 206, it is necessary to clean the impurities regularly. The following provides a structure that facilitates the disassembly of the collection rack 203: Specifically, refer to 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.

[0049] 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.

[0050] 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 collection rack 203 is connected with a support platform 401 extending into the outer flow cavity 109. A corresponding circular hole is provided on one side of the outer end cover 107 for the insertion of the support platform 401. The top of the support platform 401 is connected with fan-shaped bosses 402 arranged in an equidistant array. The fan-shaped angle of the fan-shaped boss 402 is larger than the distance between two fan-shaped bosses 402 to facilitate the accommodation of the arc plate 407 inside the fan-shaped boss 402. A metal plate 403 is connected between two adjacent fan-shaped bosses 402. The top of the fan-shaped boss 402 is connected with a protective cover 404. One side of the protective cover 404 close to the fan-shaped boss 402 is rotatably connected with a rotating disk 405. The bottom of the rotating disk 405 is connected with a permanent magnet 406 and an arc plate 407, which can drive the rotation. One side of the rotating disk 405 is connected with a permanent magnet 406 corresponding to the position of the metal plate 403. When the lubricating oil flows, the flow trajectory is referred to Figure 5 , the magnetic debris in the lubricating oil will be adsorbed on the metal plate 403, playing a role in collecting the metal debris. Through holes 123 communicating with the flow groove 111 are provided on both the rotating disk 405 and the protective cover 404, and the lubricating oil flows from the through hole 123 at the top to the flow groove 111.

[0051] 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 for facilitating the cleaning of 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.

[0052] 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;

[0053] One end of the flow tank 111 close to the filter assembly 201 is internally connected with a one-way valve 503 to prevent the lubricating oil in the flow tank 111 from leaking out.

[0054] During use, the heat of the driving axle 102 is 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 Figure 9 , one side of the wheel carrier 101 is connected with a heat dissipation assembly. The heat dissipation assembly includes a flow pipe 601 fixed on the wheel carrier 101. The lubricating oil in the oil pipeline 110 will enter the flow pipe 601 and is cooled by the heat dissipation fins 602 on the outer wall. The outer wall of the flow pipe 601 is connected with heat dissipation fins 602 arranged in a bent manner. There are multiple bends on the heat dissipation fins 602 to improve the contact with the air flow. An opening groove 603 corresponding to the heat dissipation fins 602 is opened on the edge of the wheel carrier 101. The opening groove 603 is used for the movement of the air flow. When the crane moves, the air flows on both sides will enter between the two heat dissipation fins 602 through the opening groove 603, so as to conduct heat exchange. The two ends of the flow pipe 601 are connected to one of the oil pipelines 110. There are two oil pipelines 110. Refer to Figure 10 , and an oil inlet pipe 604 and an oil outlet pipe 606 are connected to the other oil pipeline 110.

[0055] After the lubricating oil is used for a certain period of time, it needs to be replaced. At the same time, the lubricating oil inside will decrease with use. The following provides a structure for facilitating the control of the internal lubricating oil: Specifically, refer to Figure 1 , an oil inlet pipe 604 and a two-way three-way valve 605 are connected to the other oil pipeline 110. 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 the evaporation and reduction of the internal lubricating oil. The top of the two-way three-way valve 605 is connected with an oil outlet pipe 606. During normal use, the two-way three-way valve 605 controls the oil outlet pipe 606 to be in a disconnected state, so that the internal lubricating oil can circulate automatically. When the lubricating oil needs to be replaced, refer to Figure 1 , the two-way three-way valve 605 controls the oil outlet pipe 606 to communicate with the oil pipeline 110. 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 unidirectionally, the newly entered lubricating oil can circulate, thereby discharging the old lubricating oil.

[0056] Specifically, refer to Figure 5, a stirring ring 701 is connected to one side of the inner ring of the bearing 105 within the inner flow chamber 108. When the bearing 105 rotates, the inner ring drives the stirring ring 701 to rotate, thereby stirring up the impurities within the inner flow chamber 108 to facilitate collection by the filtering assembly 201 and prevent impurity accumulation. Stirring rods are connected to the stirring ring 701.

[0057] When the driving wheel 103 wears out, it needs to be replaced and disassembled. The following provides a structure that facilitates disassembly: Specifically, refer to Figure 2 and Figure 4 , an installation ring 702 is connected to the outer ring surface of the bearing 105. The installation ring 702 is sleeved on the bearing 105, facilitating removal from the split wheel bracket 104. The wheel bracket 104 includes a fixed connection frame 703 and a movable connection frame 704. The movable connection frame 704 fixes the installation ring 702 to the fixed connection frame 703 using bolts. Using bolt connection facilitates the disassembly and assembly of the driving wheel 103.

[0058] When the present invention is in use, the wheel frame 101 moves on the track through the driving wheels 103 at the bottom. Airflow flows past both sides of the wheel frame 101 and contacts the heat dissipation fins 602 on one side of the wheel frame 101 during flow, cooling the lubricating oil within the flow pipe 601. When the driving shaft 102 rotates, the internal conveying assembly 112 rotates, capable of driving the lubricating oil within the inner flow chamber 108 and the outer flow chamber 109 to flow unidirectionally. The flow state refers to Figure 10 , enhancing the flow capacity of the lubricating oil. At the same time, the inlet pipe 604 is in a low-pressure oil supply state to maintain a constant amount of lubricating oil inside. When the lubricating oil flows, the internal impurities are captured by the filtering assembly 201. Larger impurities are intercepted first, and small metal debris is adsorbed on the metal plate 403. The collected impurities can be cleaned by disassembling the collection frame 203. Due to the unidirectional movement of the internal lubricating oil, it is convenient to replace the new lubricating oil through the two-position three-way valve 605.

[0059] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention 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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