Floor sweeping vehicle fluted disc meshing transmission front wheel with nitrogen damping function

Abstract

The invention discloses a road sweeper fluted disc meshing transmission front wheel with a nitrogen damping function, and relates to the technical field of vehicle engineering, the road sweeper fluted disc meshing transmission front wheel comprises a front fork weldment, deep groove ball bearings III are mounted on the two sides of the front fork weldment, and crank weldments are connected to the outer sides of the deep groove ball bearings III in a sleeving manner; nitrogen buffer shock-proof modules are installed at the bottom of the front fork weldment and the top of the crank weldment and used for reducing shock of the sweeper in the running process. The nitrogen buffer shock-proof module comprises spring seats installed at the bottom of the front fork weldment and the top of the crank weldment, and a nitrogen shock absorber is installed between the lower set of spring seats and the upper set of spring seats. Through the nitrogen buffering and shock-absorbing module, the problems that the vehicle is difficult to control and the sweeping operation quality is affected due to bumpy road surfaces can be solved, and the continuity and high efficiency of sweeping operation are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle engineering, in particular to a sprocket-engaged transmission front wheel of a sweeper with nitrogen shock absorption. Background Art

[0002] The traditional front wheels of sweepers have limitations in design and function. They cannot cope well with complex road conditions and cannot ensure driving smoothness and comfort. At the same time, they affect the service life of the sweeper and increase maintenance costs. The front wheels of the sweeper of the present application can solve the problem of difficulty in vehicle control and affected cleaning quality due to bumpy roads.

[0003] The defects of the existing sweeper front wheel are: 1. Patent document CN110877522B discloses a front-wheel drive device and a three-wheel sweeper. The document mainly considers how to prevent the dust layer and water generated by the cleaning device under the three-wheel sweeper from damaging the motor and the reduction mechanism, but does not consider how to solve the problem of vehicle control difficulties and affected cleaning quality due to bumpy roads; 2. Patent document CN102874300B discloses an active steering transmission device of an active front wheel steering system of an automobile. The document mainly considers the problem of how to provide a steering transmission device with a simple structure and an adjustable steering transmission ratio, which is easy to implement, but does not consider how to solve the problem of large steering deviation and slow response, which affects the efficiency of the sweeper in a narrow space; 3. Patent document CN107366245B discloses a multifunctional sweeper. The document mainly considers how to provide a multifunctional sweeper to achieve comprehensive cleaning, but does not consider how to solve the problems of large power loss and driving jams caused by unstable transmission components; 4. Patent document CN107190688B discloses a roller brush mechanism assembly for a sweeper. The document mainly considers how to provide a roller brush mechanism assembly for a sweeper to efficiently clean dust on the filter, but does not consider how to solve the problem of frequent steering system failures and high maintenance costs due to bearing wear. Summary of the invention

[0004] The object of the present invention is to provide a sweeper sprocket meshing transmission front wheel with nitrogen shock absorption to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a front wheel of a sweeping vehicle with a geared disc meshing transmission with nitrogen shock absorption, comprising a front fork weldment, deep groove ball bearings three are installed on both sides of the front fork weldment, and a crank weldment is sleeved on the outer side of the deep groove ball bearing three; A nitrogen buffer shock-absorbing module is installed at the bottom of the front fork weldment and the top of the crank weldment. The nitrogen buffer shock-absorbing module is used to reduce the vibration of the sweeper during driving; The nitrogen cushioning shock absorber module includes a spring seat installed at the bottom of the front fork weldment and the top of the crank weldment, and a nitrogen shock absorber is installed between a lower set of spring seats and an upper set of spring seats.

[0006] Preferably, a nitrogen shock-absorbing transmission module is installed between the crank weldments, and the nitrogen shock-absorbing transmission module is used to drive the sweeper to move.

[0007] Preferably, the nitrogen shock-absorbing transmission module includes a front wheel axle symmetrically connected between two sets of crank weldments, and the outer surface of the front wheel axle is sleeved with a double-row angular contact bearing, axle sleeve one and axle sleeve two, and the double-row angular contact bearing is located between axle sleeve one and axle sleeve two.

[0008] Preferably, the outer surfaces of the double-row angular contact bearing, the first wheel axle sleeve and the second wheel axle sleeve are sleeved with a front wheel hub, and the outer surface of the front wheel hub is connected with a solid tire.

[0009] Preferably, a gear-disc engagement transmission module is installed on the top of the front fork weldment, and the gear-disc engagement transmission module is used to control the steering of the front wheels of the sweeper.

[0010] Preferably, the gear engagement transmission module comprises a large direction gear mounted on the top of the front fork weldment, a small direction gear is meshedly mounted on the inner side of the large direction gear, and a direction shaft is installed through the inner side of the small direction gear.

[0011] Preferably, a bearing chamber is installed on the top of the front fork weldment through a round nut, a bearing is installed through the center of the bearing chamber, a bearing spacer is sleeved on the outer side of the bearing, a deep groove ball bearing 1, a thrust roller bearing and a deep groove ball bearing 2 are installed on the outer surface of the bearing spacer, the thrust roller bearing is located between the deep groove ball bearing 1 and the deep groove ball bearing 2, and an O-ring is arranged between the deep groove ball bearing 2 and the direction gear.

[0012] Preferably, a front fork fixing weldment is installed on the top of the bearing chamber, and the steering shaft passes through the front fork fixing weldment, and a composite sleeve and a retaining ring are sleeved on the outside of the steering shaft, and the composite sleeve is located above the retaining ring, and the composite sleeve is located below the front fork fixing weldment.

[0013] Preferably, the method for using the front wheel of the sweeper with the toothed disc meshing transmission includes: S1, the power of the sweeper is transmitted to the solid tire through the nitrogen shock-absorbing transmission module; S2, controlling the steering of the solid tire by means of a gear plate meshing transmission module; S3. The nitrogen cushioning shock-absorbing module is used to reduce the vibration of the sweeper during driving.

[0014] Preferably, S1 further includes: S11: When the nitrogen shock-absorbing transmission module is working, the power of the sweeper is transmitted to the front wheel shaft, and the front wheel shaft drives the double-row angular contact bearing, wheel shaft sleeve 1, wheel shaft sleeve 2, and the front wheel hub and solid tire connected thereto to rotate; S12: The front wheel hub is fixedly connected to the solid tire. When the wheel hub rotates with the front wheel shaft, the solid tire generates friction with the ground. According to the friction principle, the friction pushes the sweeper forward, thereby realizing the movement of the sweeper. S2 also includes: S21: When the gear engagement transmission module is in operation, the direction shaft drives the direction pinion connected thereto to rotate around the shaft, and the direction pinion and the direction gearwheel contact each other through the tooth surface. Under the action of the tooth shape, the rotation of the direction pinion drives the direction gearwheel to generate rotational motion.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is equipped with a nitrogen buffer shock-absorbing module to effectively absorb and alleviate various impact forces caused by uneven road surfaces. When the sweeper is driving on potholes, bumps or rough roads, the nitrogen shock absorber can quickly and accurately adjust its damping force according to the size and frequency of the vibration, and convert the strong impact from the road surface into the compression and rebound energy of nitrogen, thereby greatly reducing the vibration amplitude transmitted to the front wheels of the vehicle and the overall frame, making the vehicle run more smoothly. At the same time, the front wheels are kept in good contact with the ground. Even in bumpy road conditions, the nitrogen buffer shock-absorbing module can ensure that the front wheels always fit the ground with appropriate pressure, ensuring the stable grip of the solid tires, which is not only beneficial to the steering control of the vehicle, but also enables the driver to It can more accurately control the driving direction of the sweeper to avoid steering difficulties or excessive deviations caused by loss of control of the front wheels due to vibration. Moreover, for cleaning operations, stable front wheel contact can ensure the stability of the relative position of the cleaning device and the ground, so that the cleaning brush can act on the ground evenly and continuously, improving the quality and effect of cleaning, and effectively avoiding cleaning omissions or uneven cleaning caused by vehicle vibration, thereby ensuring the continuity and efficiency of the cleaning operation, thereby solving the problem of difficulty in vehicle control due to bumpy roads and the impact on the quality of cleaning operations, and ensuring the continuity and efficiency of cleaning operations.

[0016] 2. The present invention uses the precise meshing transmission of the direction gear and the direction pinion in the gear engagement transmission module. Driven by the direction shaft, the direction pinion can stably transmit power to the direction gear with extremely small rotational resistance and precise angle changes. The tooth surface is specially processed to have high meshing accuracy and small clearance, thereby achieving the effect of accurately controlling the front wheel steering of the sweeper. Compared with the prior art, the accuracy and sensitivity of the front wheel steering can be greatly improved, and the lag and deviation in the steering process can be effectively reduced, so that the sweeper can adjust the driving direction more flexibly and freely when operating in a narrow space. Therefore, it can solve the problems of large steering deviation and slow response that affect the efficiency of the sweeper in a narrow space, and improve the adaptability and work efficiency of the sweeper in a complex working environment.

[0017] 3. The present invention cooperates with the double-row angular contact bearing, the wheel axle sleeve 1 and the wheel axle sleeve 2 in the nitrogen shock-absorbing transmission module. The double-row angular contact bearing can withstand large radial and axial loads, ensuring the stability of the front wheel axle when rotating at high speed. The wheel axle sleeve 1 and the wheel axle sleeve 2 play a good positioning and protection role for the bearing, reducing the interference of external factors on the bearing, and achieving the effect of stably driving the front wheel hub and the solid tire to rotate. Compared with the prior art, it can significantly improve the stability and reliability of power transmission, effectively reduce the power loss and driving jamming caused by friction, looseness or wear between transmission components, and ensure that the sweeper can maintain a stable and efficient driving state under different road conditions. Therefore, it can solve the problem of large power loss and driving jamming caused by unstable transmission components, and reduce the maintenance cost and operating cost of the vehicle.

[0018] 4. The present invention sets a variety of bearings, deep groove ball bearing 1, thrust roller bearing and deep groove ball bearing 2, in the bearing chamber. Deep groove ball bearing 1 and deep groove ball bearing 2 can provide good radial support and reduce the radial shaking of the steering shaft. The thrust roller bearing can effectively bear the axial force and ensure the axial stability of the steering shaft during the rotation process. With the assistance of bearing spacers and O-rings and other components, the effect of ensuring the stable rotation of the steering shaft is achieved. Compared with the prior art, the overall stability and durability of the geared disc meshing transmission module can be significantly improved, and the steering system failures caused by bearing wear and damage can be effectively reduced, the service life of the steering system can be extended, and the maintenance frequency and maintenance cost can be reduced. Therefore, the problem of high maintenance cost due to frequent failures of the steering system caused by the fragility of the bearing can be solved, and the overall reliability and economy of the sweeper can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the structure of the directional large gear and the directional small gear of the present invention; Figure 6 It is the work flow chart of the present invention.

[0020] In the figure: 1. front fork weldment; 2. deep groove ball bearing three; 3. crank weldment; 4. spring seat; 5. retaining ring; 6. nitrogen shock absorber; 7. front wheel shaft; 8. double row angular contact bearing; 9. wheel axle sleeve one; 10. wheel axle sleeve two; 11. front wheel hub; 12. solid tire; 13. steering gear; 14. steering gear; 15. steering shaft; 16. deep groove ball bearing one; 17. thrust roller bearing; 18. deep groove ball bearing two; 19. bearing spacer; 20. O-ring; 21. front fork fixing weldment; 22. bearing chamber; 23. composite sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 6 , an embodiment provided by the present invention: a front wheel of a sweeping vehicle with a geared disc meshing transmission with nitrogen shock absorption, comprising a front fork weldment 1, deep groove ball bearings 3 2 are installed on both sides of the front fork weldment 1, and a crank weldment 3 is sleeved on the outer side of the deep groove ball bearings 3 2; A nitrogen buffer shock-absorbing module is installed at the bottom of the front fork weldment 1 and the top of the crank weldment 3. The nitrogen buffer shock-absorbing module is used to reduce the vibration of the sweeper during driving; The nitrogen buffer shock absorber module includes a spring seat 4 installed at the bottom of the front fork weldment 1 and the top of the crank weldment 3, and a nitrogen shock absorber 6 is installed between the lower group of spring seats 4 and the upper group of spring seats 4.

[0025] Furthermore, the front fork weldment 1 is the supporting basis of the entire front wheel structure. Deep groove ball bearings 3 2 are installed on both sides of the front fork weldment 1. The deep groove ball bearings 3 2 not only provide necessary support, but also ensure the stability and smoothness of the front wheel of the sweeper during rotation. The outer side of the deep groove ball bearings 3 2 is sleeved with a crank weldment 3, which further enhances the stability and durability of the front wheel of the sweeper.

[0026] In order to further improve the comfort and stability of the sweeper during driving, a nitrogen buffer shock absorption module is installed at the bottom of the front fork weldment 1 and the top of the crank weldment 3, and the spring seat 4 is respectively installed at the bottom of the front fork weldment 1 and the top of the crank weldment 3, providing a solid foundation for the shock absorption system. The nitrogen shock absorber 6 utilizes the compressibility of nitrogen to provide a more stable and efficient shock absorption effect for the front wheel of the sweeper.

[0027] See also Figure 3 , an embodiment provided by the present invention: a front wheel of a sweeping vehicle with a geared disc meshing transmission with nitrogen shock absorption, a nitrogen shock absorption transmission module is installed between the crank weldment 3, and the nitrogen shock absorption transmission module is used to drive the sweeping vehicle to move; The nitrogen shock-absorbing transmission module includes a front wheel axle 7 symmetrically connected between two sets of crank weldments 3. The outer surface of the front wheel axle 7 is sleeved with a double-row angular contact bearing 8, axle sleeve 1 9 and axle sleeve 2 10, and the double-row angular contact bearing 8 is located between axle sleeve 1 9 and axle sleeve 2 10.

[0028] Furthermore, the crank weldment 3 is used as the main supporting structure, and a nitrogen shock-absorbing transmission module is installed between the crank weldments 3 to provide power for the movement of the sweeper. The front wheel shaft 7 is symmetrically connected between the two sets of crank weldments 3, and is the core component of the nitrogen shock-absorbing transmission module, responsible for transmitting torque and supporting the front wheel of the sweeper. The double-row angular contact bearing 8 is sleeved on the outer surface of the front wheel shaft 7, located between the wheel shaft sleeve 1 9 and the wheel shaft sleeve 2 10, and has good load-bearing capacity and rotation accuracy, ensuring the stable operation of the front wheel of the sweeper. The wheel shaft sleeve 1 9 and the wheel shaft sleeve 2 10 are respectively installed on both sides of the front wheel shaft 7 to play a protective and supporting role. The temperature sensor is installed on the outside of the double-row angular contact bearing 8 to monitor the temperature change of the double-row angular contact bearing 8 in real time to ensure that the double-row angular contact bearing 8 operates within the normal working range. The coordinated use of the front wheel shaft 7 and the double-row angular contact bearing 8 ensures the accuracy and stability of the transmission. The double-row angular contact bearing 8 can withstand large radial and axial loads, so that the sweeper can still maintain stable operation under complex road conditions.

[0029] See also Figure 1 and Figure 2 An embodiment of the present invention is: a front wheel of a sweeping vehicle with a sprocket meshing transmission with nitrogen shock absorption, wherein the outer surfaces of the double-row angular contact bearing 8, the wheel axle sleeve 1 9 and the wheel axle sleeve 2 10 are sleeved with a front wheel hub 11, and the outer surface of the front wheel hub 11 is connected with a solid tire 12.

[0030] Furthermore, in this sweeper sprocket meshing transmission front wheel structure with nitrogen shock absorption, the double-row angular contact bearing 8, wheel axle sleeve 1 9 and wheel axle sleeve 2 10 are tightly nested inside the front wheel hub 11, and the matching accuracy between them is extremely high, ensuring the stability and reliability of the sweeper front wheel during rotation.

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an embodiment provided by the present invention: a sprocket-engaged transmission front wheel of a sweeping vehicle with nitrogen shock absorption, a sprocket-engaged transmission module is installed on the top of the front fork weldment 1, and the sprocket-engaged transmission module is used to control the steering of the front wheel of the sweeping vehicle; The gear engagement transmission module comprises a large direction gear 13 mounted on the top of the front fork weldment 1 , a small direction gear 14 is meshedly mounted on the inner side of the large direction gear 13 , and a direction shaft 15 is installed through the inner side of the small direction gear 14 .

[0032] Furthermore, on the top of the front fork weldment 1, a gear-plate meshing transmission module is firmly installed. The gear-plate meshing transmission is the key to controlling the steering of the front wheels of the sweeper. The tooth shape of the direction pinion 14 meshing with the direction gear 13 perfectly matches the tooth shape of the direction gear 13. During installation, through a strict positioning process, it can be accurately embedded into the inner side of the direction gear 13. The meshing clearance between the two is controlled between 0.1-0.3 mm, which can not only ensure the high efficiency of the transmission, but also reduce the impact and noise caused by the excessive clearance.

[0033] The inner side of the direction pinion 14 is tightly penetrated by the direction shaft 15, which is made of high-strength alloy steel and has excellent torsional resistance and rigidity. The surface is ground and has a very high finish to reduce friction resistance with other components.

[0034] See also Figure 4 An embodiment of the present invention is as follows: a front wheel of a sweeping vehicle with a sprocket meshing transmission with nitrogen shock absorption, a bearing chamber 22 is installed on the top of the front fork weldment 1 through a round nut, a bearing is installed through the center of the bearing chamber 22, a bearing spacer 19 is sleeved on the outer side of the bearing, a deep groove ball bearing 16, a thrust roller bearing 17 and a deep groove ball bearing 2 18 are installed on the outer surface of the bearing spacer 19, the thrust roller bearing 17 is located between the deep groove ball bearing 16 and the deep groove ball bearing 2 18, and an O-ring 20 is arranged between the deep groove ball bearing 2 18 and the direction gear 13.

[0035] Furthermore, a bearing chamber 22 is installed and fixed on the top of the front fork weldment 1 by a round nut, and the thread of the round nut is tightly engaged with the threaded hole on the top of the front fork weldment 1. During the tightening process, with precise torque control, the round nut applies just the right axial pressure to the bearing chamber 22, which ensures that the bearing chamber 22 will not loosen or displace during operation, and will not cause damage to the bearing chamber 22 or the front fork weldment 1 due to excessive pressure.

[0036] The bearing chamber 22 is a hollow cylindrical structure, and a bearing is precisely installed at the center. The bearing is a high-quality rolling bearing, and its inner and outer rings are finely ground, with extremely low surface roughness, which can effectively reduce the rolling friction coefficient. A bearing spacer 19 is tightly sleeved on the outside of the bearing. The bearing spacer 19 is made of high-strength alloy steel and is used to separate and position the deep groove ball bearing 16, the thrust roller bearing 17 and the deep groove ball bearing 2 18.

[0037] The deep groove ball bearing 16 is located at one end of the bearing spacer 19, and has a large radial load capacity, and can effectively withstand the radial force from the steering shaft 15 and other components. The inner ring of the deep groove ball bearing 16 is tightly matched with the steering shaft 15, and the outer ring maintains a suitable gap with the bearing spacer 19, so that it can freely expand and contract when the temperature changes or is subjected to force.

[0038] The thrust roller bearing 17 is located between the deep groove ball bearing 16 and the deep groove ball bearing 2 18, and is used to bear a large axial load. Its rollers are cylindrical and evenly distributed on the raceway between the inner and outer rings. Under the action of the axial force, the rollers can roll stably and evenly distribute the axial load to various parts of the bearing.

[0039] The deep groove ball bearing 2 18 is located at the other end of the bearing spacer 19, and also has excellent radial load-bearing capacity. It works in conjunction with the deep groove ball bearing 1 16 to further enhance the radial stability of the entire bearing system. An O-ring 20 is cleverly arranged between the deep groove ball bearing 2 18 and the direction gear 13. The O-ring 20 is made of a rubber material that is wear-resistant, aging-resistant, and has good sealing performance. Its cross section is circular. When installed, it is compressed in the gap between the outer ring of the deep groove ball bearing 2 18 and the direction gear 13, effectively preventing impurities such as dust and moisture from entering the bearing, ensuring the cleanliness and normal operation of the bearing, extending the service life of the bearing, and ensuring the stable and reliable operation of the front wheel of the gear plate meshing transmission.

[0040] See also Figure 4 An embodiment of the present invention is as follows: a sprocket-engaged transmission front wheel of a sweeping vehicle with nitrogen shock absorption, a front fork fixing weldment 21 is installed on the top of the bearing chamber 22, and the steering shaft 15 passes through the front fork fixing weldment 21, and the outer part of the steering shaft 15 is sleeved with a composite sleeve 23 and a retaining ring 5, and the composite sleeve 23 is located above the retaining ring 5, and the composite sleeve 23 is located below the front fork fixing weldment 21.

[0041] Furthermore, a front fork fixing weldment 21 is installed on the top of the bearing chamber 22, and the two are tightly connected to prevent the intrusion of impurities such as dust and moisture from affecting the normal operation of internal components. The steering shaft 15 passes through the front fork fixing weldment 21 with strict coaxiality requirements. At the penetration point, the steering shaft 15 undergoes a fine grinding and polishing process to minimize the friction resistance between the front fork fixing weldment 21.

[0042] The composite sleeve 23 sleeved on the outside of the steering shaft 15 is made of a special composite material, which combines high-strength metal fibers with high molecular polymers with self-lubricating properties. The metal fibers are evenly distributed in the polymer matrix, giving the composite sleeve 23 excellent compression and wear resistance, and can withstand large radial pressure and axial impact force, while the high molecular polymer ensures a low friction coefficient when in contact with the steering shaft 15 and the front fork fixing weldment 21, reducing wear between components.

[0043] The composite sleeve 23 fits tightly on the steering shaft 15, and the clearance between its inner diameter and the outer diameter of the steering shaft 15 is precisely calculated and strictly controlled within a tolerance range of 0.05-0.1 mm to ensure that the steering shaft 15 can be stably supported while allowing a slight space for thermal expansion and contraction of the steering shaft 15 during normal operation.

[0044] The retaining ring 5 located above the composite sleeve 23 plays a key role in axial limiting. The retaining ring 5 is made of high-quality alloy steel and has undergone heat treatment processes such as quenching and tempering to give it high hardness and toughness. Its shape design is unique, with a precise slot on one side, which fits tightly with the raised part on the front fork fixing weldment 21, and the other side contacts the steering shaft 15 with a suitable arc and size to prevent the steering shaft 15 from excessive displacement in the axial direction. The retaining ring 5 and the composite sleeve 23 are used to ensure stability and reliability during operation and prevent steering failure or other faults caused by loose or displacement of components.

[0045] Further, the method of using the front wheel of the sweeper gear engagement drive is as follows: S1, transmitting the power of the sweeper to the solid tire 12 through the nitrogen shock-absorbing transmission module; S2, controlling the steering of the solid tire 12 by means of a gear plate meshing transmission module; S3. The nitrogen cushioning shock-absorbing module is used to reduce the vibration of the sweeper during driving.

[0046] Furthermore, S1 also includes: S11: When the nitrogen shock-absorbing transmission module is working, the power of the sweeper is transmitted to the front wheel shaft 7, and the front wheel shaft 7 drives the double-row angular contact bearing 8, the wheel shaft sleeve 1 9, the wheel shaft sleeve 2 10, and the front wheel hub 11 and the solid tire 12 connected thereto to rotate; S12: The front wheel hub 11 is fixedly connected to the solid tire 12. When the wheel hub rotates with the front wheel shaft 7, the solid tire 12 generates friction with the ground. According to the friction principle, the friction pushes the sweeper forward to realize the movement of the sweeper; S2 also includes: S21: When the gear engagement transmission module is in operation, the direction shaft 15 drives the direction pinion 14 connected thereto to rotate around the axis, and the direction pinion 14 and the direction gear 13 contact each other through the tooth surface. Under the action of the tooth shape, the rotation of the direction pinion 14 drives the direction gear 13 to generate rotational motion.

[0047] Working principle: When the sweeper encounters vibration during driving, the nitrogen shock absorber 6 is filled with high-pressure nitrogen, which is compressible and has good stability. When vibration is transmitted, the nitrogen is compressed in the chamber inside the shock absorber, and the vibration energy is consumed by changing the volume and pressure of the nitrogen, and the vibration is buffered and damped, so that the vibration transmitted to the main structure of the sweeper is greatly reduced, thereby improving the comfort and stability of the sweeper.

[0048] After the power is transmitted to the front wheel shaft 7, the front wheel shaft 7 starts to rotate. Since the double-row angular contact bearing 8 is sleeved on the front wheel shaft 7, it can withstand large radial and axial loads, ensure the stability of the front wheel shaft 7 during rotation, and reduce the shaking and deviation of the shaft.

[0049] The axle sleeve 1 9 and the axle sleeve 2 10 surround the outer surface of the front wheel shaft 7, and play a role in positioning and protecting the double-row angular contact bearing 8, ensuring that the bearing works in a suitable position and space, and preventing external impurities and other factors from interfering with the bearing. As the front wheel shaft 7 rotates, the front wheel hub 11 connected thereto is driven to rotate synchronously, and the front wheel hub 11 is fixedly connected to the solid tire 12, and the solid tire 12 contacts the ground and generates friction. According to the principle of friction, when the wheel hub rotates, the direction of the friction force given to the solid tire 12 by the ground is opposite to the direction of rotation of the tire, and this friction pushes the sweeper forward to achieve the movement of the sweeper.

[0050] When the front wheel of the sweeper needs to be controlled to turn, the direction shaft 15 starts to rotate under the action of external force. The rotation of the direction shaft 15 drives the direction pinion 14 connected thereto to do circular motion around the shaft.

[0051] The small direction gear 14 and the large direction gear 13 mesh with each other through the tooth surface. Due to the special design of the tooth shape, the teeth of the small direction gear 14 will push the teeth of the large direction gear 13 in turn during the rotation process, so that the large direction gear 13 produces a corresponding rotational motion. The large direction gear 13 is installed on the top of the front fork weldment 1, and the front fork weldment 1 is connected to the front wheel, so as to achieve precise control of the front wheel steering. By adjusting the rotation direction and angle of the steering shaft 15, the steering angle and direction of the front wheel can be accurately changed.

[0052] The bearing chamber 22 is installed on the top of the front fork weldment 1 through a round nut to provide installation space and protection for the internal components. The bearing is installed through the center of the bearing chamber 22, and the bearing spacer 19 sleeved on the outside thereof serves to separate and position different bearings.

[0053] Deep groove ball bearing 16 and deep groove ball bearing 2 18 mainly bear the radial load of the direction shaft 15, reduce the shaking and deviation of the direction shaft 15 in the radial direction, and ensure the smooth rotation. The thrust roller bearing 17 mainly bears the axial force of the direction shaft 15 to prevent the shaft from moving in the axial direction. The O-ring 20 plays a sealing role to prevent dust and impurities from entering the bearing chamber 22 and affecting the normal operation of the bearing. The front fork fixing weldment 21 is installed on the top of the bearing chamber 22 to further fix and strengthen the entire structure. The direction shaft 15 passes through the front fork fixing weldment 21, and the composite sleeve 23 and the retaining ring 5 sleeved on the outside are used to limit the axial displacement of the direction shaft 15 to ensure its stable rotation in a suitable axial position, thereby ensuring the overall stable operation of the geared disc meshing transmission module and improving its durability and reliability.

[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A front wheel of a sweeping vehicle with a geared disc meshing transmission and nitrogen shock absorption, comprising a front fork weldment (1), characterized in that: Deep groove ball bearings (2) are installed on both sides of the front fork weldment (1), and a crank weldment (3) is sleeved on the outer side of the deep groove ball bearings (2); A nitrogen buffer shock-absorbing module is installed at the bottom of the front fork weldment (1) and the top of the crank weldment (3), and the nitrogen buffer shock-absorbing module is used to reduce the vibration of the sweeper during driving; The nitrogen buffer shock absorber module comprises a spring seat (4) installed at the bottom of a front fork weldment (1) and the top of a crank weldment (3), and a nitrogen shock absorber (6) is installed between a lower set of spring seats (4) and an upper set of spring seats (4).

2. The front wheel of the sweeper with nitrogen shock absorption is characterized by: A nitrogen shock-absorbing transmission module is installed between the crank weldments (3), and the nitrogen shock-absorbing transmission module is used to transmit the power of the sweeper.

3. The front wheel of the sweeper with nitrogen shock absorption is characterized by: The nitrogen shock-absorbing transmission module comprises a front wheel axle (7) symmetrically connected between two sets of crank weldments (3); a double-row angular contact bearing (8), a wheel axle sleeve 1 (9) and a wheel axle sleeve 2 (10) are sleeved on the outer surface of the front wheel axle (7); and the double-row angular contact bearing (8) is located between the wheel axle sleeve 1 (9) and the wheel axle sleeve 2 (10).

4. The front wheel of the sweeper with nitrogen shock absorption is characterized by: The outer surfaces of the double-row angular contact bearing (8), the first wheel axle sleeve (9) and the second wheel axle sleeve (10) are sleeved with a front wheel hub (11), and the outer surface of the front wheel hub (11) is connected with a solid tire (12).

5. The front wheel of the sweeper with nitrogen shock absorption is meshed with a sprocket according to claim 1, characterized in that: A toothed disc meshing transmission module is installed on the top of the front fork weldment (1), and the toothed disc meshing transmission module is used to control the steering of the front wheels of the sweeper.

6. The front wheel of the sweeper with nitrogen shock absorption is meshed with a sprocket according to claim 5, characterized in that: The toothed disc meshing transmission module comprises a large directional gear (13) mounted on the top of the front fork weldment (1), a small directional gear (14) meshingly mounted on the inner side of the large directional gear (13), and a directional shaft (15) penetratingly mounted on the inner side of the small directional gear (14).

7. The front wheel of the sweeper with nitrogen shock absorption is meshed with a sprocket according to claim 1, characterized in that: A bearing chamber (22) is installed at the top of the front fork weldment (1) via a round nut, a bearing is installed through the center of the bearing chamber (22), a bearing spacer (19) is sleeved on the outer side of the bearing, a deep groove ball bearing (16), a thrust roller bearing (17) and a deep groove ball bearing (18) are installed on the outer surface of the bearing spacer (19), the thrust roller bearing (17) is located between the deep groove ball bearing (16) and the deep groove ball bearing (18), and an O-ring (20) is provided between the deep groove ball bearing (18) and the direction gear (13).

8. The front wheel of the sweeper with nitrogen shock absorption is characterized by: A front fork fixing weldment (21) is installed on the top of the bearing chamber (22), and the steering shaft (15) passes through the front fork fixing weldment (21). A composite sleeve (23) and a retaining ring (5) are sleeved on the outside of the steering shaft (15), and the composite sleeve (23) is located above the retaining ring (5), and the composite sleeve (23) is located below the front fork fixing weldment (21).

9. A method for using a front wheel of a sweeping vehicle with a geared disc meshing transmission with nitrogen shock absorption according to any one of claims 1 to 6, characterized in that: The method of using the front wheel of the sweeper gear engagement drive includes: S1, transmitting the power of the sweeper to the solid tire (12) through the nitrogen shock-absorbing transmission module; S2, controlling the steering of the solid tire (12) by means of a geared disc meshing transmission module; S3. The nitrogen cushioning shock-absorbing module is used to reduce the vibration of the sweeper during driving.

10. The method for using the front wheel of the sweeper with nitrogen shock absorption according to claim 9, characterized in that: S1 also includes: S11: When the nitrogen shock-absorbing transmission module is in operation, the power of the sweeper is transmitted to the front wheel shaft (7), and the front wheel shaft (7) drives the double-row angular contact bearing (8), the wheel shaft sleeve 1 (9), the wheel shaft sleeve 2 (10) and the front wheel hub (11) and the solid tire (12) connected thereto to rotate; S12: The front wheel hub (11) is fixedly connected to the solid tire (12). When the wheel hub rotates with the front wheel shaft (7), the solid tire (12) generates friction with the ground. According to the friction principle, the friction pushes the sweeper forward, thereby achieving movement of the sweeper; S2 also includes: S21: When the gear engagement transmission module is in operation, the direction shaft (15) drives the direction pinion (14) connected thereto to rotate about the shaft, and the direction pinion (14) and the direction gear (13) contact each other through the tooth surfaces. Under the action of the tooth shape, the rotation of the direction pinion (14) drives the direction gear (13) to generate a rotational motion.

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