Barrel turning and feeding mechanism, tooth hanging position adjusting method and garbage truck

Abstract

The application discloses a barrel overturning and loading mechanism, a hanging tooth position adjusting method and a garbage truck. The barrel overturning and loading mechanism comprises a barrel overturning frame, a sliding frame and a barrel hanging assembly. The sliding frame is movably arranged on the barrel overturning frame along a first direction. The barrel hanging assembly comprises a plurality of hanging teeth which are arranged on the sliding frame and are spaced apart along a second direction. The first direction is perpendicular to the second direction. The positions of the hanging teeth relative to the sliding frame can be adjusted along the second direction. Thus, the service life of the hanging teeth is prolonged.

Description

Technical Field

[0001] This invention relates to the field of sanitation facilities technology, and in particular to a tipping bin feeding mechanism, a method for adjusting the position of the hook teeth, and a garbage truck. Background Technology

[0002] As a key piece of equipment in the modern urban waste collection and transportation system, the performance of the tipping and loading mechanism of garbage trucks directly affects the efficiency of waste collection and transportation. The tipping and loading mechanism realizes the lifting and tipping action of garbage bins through the mechanical cooperation between the hook teeth and the rib plates of the garbage bins. This process requires that the hook teeth must be precisely matched with the structural features of the garbage bins. At present, the industry generally adopts a fixed design in which the hook teeth are welded as a whole to the tipping frame, and the rib plate layout of standard garbage bins is adapted by the preset hook tooth spacing.

[0003] In actual operation scenarios, due to the large number of garbage can manufacturers nationwide, there are significant differences in key dimensions such as the height, thickness, and spacing of the reinforcing ribs produced by different manufacturers. This lack of standardization often leads to structural conflicts between the fixed hanging teeth and the ribs of irregularly shaped garbage cans. If the hanging teeth fail to effectively engage with the rim of the can, a safety accident may occur when the can is tilted and falls from mid-air. If the hanging teeth interfere with the ribs, stress concentration during the pressure application phase of the can pressing plate may cause the rim structure to collapse, resulting in structural damage to the garbage can.

[0004] To address such issues, on-site workers often resort to temporary cutting of the gear teeth as an emergency measure. However, the cross-sectional modulus of the gear teeth is significantly reduced after cutting and modification, making them prone to stress concentration under dynamic loads. This can lead to fatigue cracks or even fracture failure at the root of the gear teeth, resulting in a short service life. Summary of the Invention

[0005] This invention provides a tipping bucket feeding mechanism, a method for adjusting the position of the hook teeth, and a garbage truck, which extends the service life of the hook teeth.

[0006] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a drum tipping and feeding mechanism, including a drum tipping frame, a slide frame, and a drum hanging assembly; The slide can be moved along the first direction and is mounted on the tipping bucket frame; The bucket assembly includes a plurality of hanging teeth disposed on the carriage and spaced apart along a second direction, wherein the first direction and the second direction are perpendicular. The position of the hook tooth relative to the carriage can be adjusted along the second direction.

[0007] In an optional embodiment, the bucket assembly further includes a transmission module connected to the hanging teeth, which drives the hanging teeth to slide relative to the carriage in the second direction.

[0008] In an optional embodiment, the transmission module includes a screw extending along the second direction and a threaded hole provided on the gear; The screw and the threaded hole form a self-locking threaded engagement.

[0009] In an optional embodiment, the transmission module includes at least two screws spaced apart in the first direction; The screw is provided with an optical axis and an external thread distributed along the second direction; In the first direction, two adjacent screws are respectively a first screw and a second screw; The hanging teeth that are threadedly engaged with the external threads on the first screw are slidably sleeved on the optical shaft on the second screw; The hanging teeth, which are threadedly engaged with the external threads on the second screw, are slidably sleeved on the optical shaft on the first screw.

[0010] In an optional embodiment, the screw has at least two external threads; Each of the aforementioned teeth is threadedly engaged with a section of the aforementioned external thread; In the second direction, the directions of two adjacent external threads on the same screw are opposite; and the two adjacent external threads on the first screw are located between the two adjacent external threads on the second screw.

[0011] In an optional implementation, all the teeth are symmetrically distributed about a preset center line, which is parallel to the first direction.

[0012] In an optional embodiment, one end of the screw is provided with a flat section; And / or, One end of the screw is fixed with a polygonal force-applying assembly; And / or, The screw is rotatably mounted on the carriage via two bearing seats; And / or, The carriage is provided with two hanging bucket assemblies along the second direction, wherein the screws in the two hanging bucket assemblies are coaxially connected in a one-to-one correspondence.

[0013] In an optional embodiment, the tipping bucket feeding mechanism further includes a driving component, which includes a linear motor, a rotor motor, or a hydraulic motor, for driving the hanging teeth to slide along the second direction; And / or, One of the hook teeth and the carriage is provided with a waist-shaped hole, and the other is detachably connected to a fastener passing through the waist-shaped hole; wherein the length direction of the waist-shaped hole is along the second direction.

[0014] Secondly, the present invention provides a method for adjusting the position of the hanging teeth, applied to a drum tipping and feeding mechanism. The drum tipping and feeding mechanism includes a drum tipping frame, a slide that can be moved along a first direction and is disposed on the drum tipping frame, a plurality of hanging teeth disposed on the slide, and a driving member for driving the hanging teeth to slide along a second direction, wherein the first direction is perpendicular to the second direction. When the hook tooth is located between the first and second ribs of the trash can, the hook tooth position adjustment method includes the following steps: The control drive unit operates in the forward direction to drive the gear to slide in the forward direction along the second direction; When the gear contacts the first stiffener, the driving component is controlled to stop, and the physical quantity of motion of the driving component at this time is recorded as the first physical quantity; wherein, the physical quantity of motion includes the rotation angle of the rotor of the rotor motor or hydraulic motor or the translation distance of the mover of the linear motor. Control the drive unit to run in reverse so as to drive the gear to slide in the reverse direction along the second direction; When the gear contacts the second stiffener, the driving component is controlled to stop, and the physical quantity of the driving component's movement is recorded as the second physical quantity. Determine the return physical quantity based on the first physical quantity and the second physical quantity; The return physical quantity is controlled to run in the forward direction by the drive component.

[0015] In an optional implementation, the return physical quantity C is determined according to the following formula:

[0016] Wherein, A represents the first physical quantity and B represents the second physical quantity.

[0017] In an optional embodiment, the drive unit includes a linear motor or a rotor motor; during the forward or reverse operation of the drive unit, when the motor current increases from the rated current to the stall current, the drive unit is controlled to stop. or, The drive component includes a hydraulic motor; during the forward or reverse operation of the drive component, when the pressure of the hydraulic system used to supply oil to the hydraulic motor increases to the overflow pressure, the drive component is controlled to stop.

[0018] Thirdly, the present invention provides a garbage truck, including a controller and / or the tipping and loading mechanism described in any of the foregoing embodiments; The controller is used to store, read, and execute the gear position adjustment method described in any of the foregoing embodiments.

[0019] The beneficial effects of the embodiments of the present invention include: By setting the hook teeth to be adjustable in a second direction, the spacing of the hook teeth can be adapted to the actual layout of the rib plates of different manufacturers' trash cans. When dealing with irregularly shaped trash cans with different rib plate spacing, operators can flexibly change the lateral position of the hook teeth, so that each hook tooth can more accurately fit into the corresponding mating structure of the trash can rim. This helps to form an effective engagement between the hook teeth and the rim, thereby reducing the chance of the trash can accidentally slipping off due to the hook teeth coming loose during lifting and tipping.

[0020] At the same time, by adjusting the position of the hanging teeth to adapt to the position of the reinforcing plate, the structural interference between the hanging teeth and the reinforcing plate of the garbage can can be alleviated, thereby reducing the damage to the bin edge structure caused by local stress concentration during the pressure application stage of the pressure plate.

[0021] Furthermore, since there is no need to passively adapt to different trash cans by temporarily cutting the teeth, the teeth can maintain their original cross-sectional geometric integrity. This makes the stress distribution at the root of the teeth more uniform when subjected to dynamic loads, which helps to suppress stress concentration and fatigue crack initiation caused by abrupt changes in cross-section, and extends the service life of the teeth. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the tipping drum feeding mechanism in the first embodiment of the present invention; Figure 2 for Figure 1 Side view; Figure 3 This is one of the schematic diagrams of the hanging bucket assembly in the first embodiment of the present invention; Figure 4 This is a schematic diagram of the tipping and feeding mechanism in the first embodiment of the present invention in cooperation with the garbage bin; Figure 5 for Figure 3 AA section view in the middle; Figure 6 for Figure 3 Schematic diagram of the connection structure between the screw and the coupling; Figure 7 This is a second schematic diagram of the hanging bucket assembly in the first embodiment of the present invention; Figure 8 This is a schematic diagram of the tipping drum feeding mechanism in the second embodiment of the present invention; Figure 9 for Figure 8 Enlarged view of region A in the middle; Figure 10 This is a flowchart of the gear position adjustment method in the third embodiment of the present invention.

[0024] Icons: 100-Tipping rack; 110-Tipping plate; 200-Slide; 300-Tipping assembly; 310-Hanging tooth; 311-Threaded hole; 312-First hanging tooth; 313-Second hanging tooth; 314-Third hanging tooth; 315-Fourth hanging tooth; 316-Oval hole; 320-Screw; 321-First screw; 322-Second screw; 323-External thread; 324-Optical shaft; 325-Shaft head; 330-Bearing seat; 340-Force application kit; 350-First key; 370-Coupling; 371-Second key; 380-Fastener; 390-Encoder; 400-Trash can; 410-Ribplate; 411-First ribplate; 412-Second ribplate; Y-First direction; X-Second direction; O-Preset center line. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] First Embodiment This invention discloses a garbage truck, which includes a chassis, a garbage bin, and a tipping and loading mechanism; The chassis is a monocoque frame structure with a wheel system at the bottom for supporting and moving the vehicle.

[0033] The trash can is placed on the chassis, and its interior is used to hold trash.

[0034] The tipping and loading mechanism is installed at the rear of the garbage bin and is used to grab, lift and tip the outer garbage bin 400 to pour the garbage in the garbage bin 400 into the garbage bin.

[0035] For details, please refer to the following: Figures 1 to 3 The tipping and feeding mechanism includes a tipping frame 100, a slide 200, and a bucket hanging assembly 300; The carriage 200 is movable along the first direction Y and is mounted on the tipping rack 100; The bucket assembly 300 includes a plurality of hanging teeth 310 disposed on the carriage 200 and spaced apart along the second direction X, wherein the first direction Y and the second direction X are perpendicular. During operation, the edge of the external trash can 400 is hooked onto the corresponding hook tooth 310 on the hook assembly 300. Since the hook teeth 310 are spaced apart along the second direction X (horizontal transverse direction), they can accommodate different sizes or two trash cans 400 side by side.

[0036] Subsequently, the drive carriage 200 moves upward along the first direction Y (which is vertical at this time), and the carriage 200 drives the hanging tooth 310 and the garbage can 400 hanging on it to rise together. As the garbage can 400 continues to rise, the outer wall of the garbage can 400 gradually approaches and finally abuts against the pressure plate 110 fixed on the tipping frame 100. At this time, the garbage can 400 is clamped between the hanging tooth 310 and the pressure plate 110, completing the stable clamping of the garbage can 400.

[0037] Next, the tipping frame 100 rotates upward around its hinge axis under the action of the drive device (at this time, the first direction Y adaptability is tilted relative to the vertical direction), which drives the clamped garbage bin 400 to rotate synchronously, so that the opening of the garbage bin 400 tilts downward, and the garbage inside the bin is poured into the garbage container under the action of gravity.

[0038] The hook tooth 310 is used to hook the edge of the trash can 400, so that the trash can 400 is lifted by the slide 200 and comes into contact with the pressure plate 110 on the tipping frame 100, thereby clamping the trash can 400. Then, the trash can can be lifted and dumped by flipping the tipping frame 100.

[0039] The position of the gear 310 relative to the carriage 200 can be adjusted along the second direction X.

[0040] Therefore, by setting the hanging teeth 310 to be adjustable along the second direction X, the spacing of the hanging teeth 310 can be adapted to the actual layout of the rib plates 410 of different manufacturers' garbage cans 400. When dealing with irregularly shaped garbage cans 400 with different rib plate spacing, the operator can flexibly change the lateral position of the hanging teeth 310, so that each hanging tooth 310 can be more accurately embedded into the corresponding mating structure of the edge of the garbage can 400. This helps to form an effective engagement between the hanging teeth 310 and the edge of the can, thereby reducing the probability of the garbage can 400 accidentally slipping off due to the hanging teeth 310 becoming dislodged during the lifting and tilting process.

[0041] Meanwhile, by adjusting the position of the hanging teeth 310 to adapt to the position of the stiffening plate 410, the structural interference between the hanging teeth 310 and the stiffening plate 410 of the garbage can 400 can be alleviated, thereby reducing the damage to the can edge structure caused by local stress concentration during the pressure application stage of the pressure plate 110.

[0042] Furthermore, since there is no need to passively adapt to different trash cans 400 by temporarily cutting the hanging teeth 310, the hanging teeth 310 can maintain the original cross-sectional geometric integrity. This makes the stress distribution at the root of the hanging teeth 310 more uniform when subjected to dynamic loads, which helps to suppress stress concentration and fatigue crack initiation caused by abrupt changes in cross-section, and extends the service life of the hanging teeth 310.

[0043] Optionally, in one embodiment, the hanging bin assembly 300 further includes a transmission module connected to the hanging teeth 310, which drives the hanging teeth 310 to slide relative to the slide 200 in the second direction X. This allows for quick adjustment of the position of the hanging teeth 310, making the spacing of each hanging tooth 310 suitable for different models of trash cans 400. Moreover, the operator does not need to directly apply strong force such as hammering or prying to the hanging teeth 310, which helps to reduce the probability of accidental damage to the hanging teeth 310 and its connecting structure during the adjustment process, and makes the adjustment action more convenient and quick.

[0044] For more details, please refer to [link / reference]. Figure 3 The transmission module includes a screw 320 extending along the second direction X and a threaded hole 311 provided on the gear 310; The screw 320 and the threaded hole 311 form a self-locking threaded fit (i.e., a worm gear pair with a self-locking angle, such as a thread helix angle smaller than the equivalent friction angle).

[0045] In this way, the transmission module can convert the rotational motion of the screw 320 into the linear displacement of the gear 310, adjusting the position of the gear 310. Moreover, since the screw pair itself has a self-locking function, after the screw 320 stops rotating and the spacing of the gear 310 is set, no matter how large the external load from the weight of the garbage can 400, the inertia of the overturning, etc., the component force along the axial direction of the screw 320 is insufficient to drive the screw pair to rotate on its own. Thus, the gear 310 is reliably kept in the predetermined position. In this way, during the process of overturning the garbage can, even if the gear 310 is subjected to multi-directional dynamic forces from the load of the garbage can 400, it can continuously convert the load into positive pressure and frictional torque on the axial direction and tooth surface of the screw 320. This makes it less likely that the set position of the gear 310 will slowly drift or suddenly loosen over time when subjected to alternating loads, which helps to maintain the continuous stability of the fit between the gear 310 and the rib plate 410 of the garbage can 400.

[0046] To ensure the stability of the 310 gear and prevent it from wobbling during the tipping and feeding process, please refer to... Figure 3 The transmission module includes at least two screws 320 spaced apart in the first direction Y; The screw 320 is provided with an optical axis 324 distributed along the second direction X and an external thread 323; In the first direction Y, two adjacent screws 320 are respectively the first screw 321 and the second screw 322; The hanging teeth 310, which are threadedly engaged with the external thread 323 on the first screw 321, are slidably sleeved on the optical shaft 324 on the second screw 322; The hanging teeth 310, which are threadedly engaged with the external threads 323 on the second screw 322, are slidably sleeved on the optical shaft 324 on the first screw 321.

[0047] Therefore, by arranging at least two screws 320 at intervals along the first direction Y, and by having the external threads 323 on the same hanging tooth 310 and the optical axis 324 of the two adjacent screws 320 cross-fit, a double-support constraint structure is formed for each hanging tooth 310. Taking the first hanging tooth 312 as an example, it achieves transmission and locking by engaging with the external thread 323 of the first screw 321 through the threaded hole 311. At the same time, the first hanging tooth 312 is also slidably sleeved on the optical axis 324 of the second screw 322 to form a guide support, and vice versa. Thus, the hanging tooth 310 obtains at least two load-bearing and guiding base points distributed along the first direction Y on the slide 200, forming a stable support span. This effectively restrains the swing tendency of the hanging tooth 310 around the axis of the screw 320 when it is subjected to multi-directional eccentric loads generated by the overturning of the garbage can 400, and the posture of the hanging tooth 310 can remain stable, ensuring the consistency of the fit between the hanging tooth 310 and the rib plate 410 of the garbage can 400.

[0048] During the adjustment phase of the tooth spacing 310, the sliding guide effect of the optical axis 324 can guide the tooth 310 to move smoothly along the second direction X, preventing jamming or tilting and ensuring the smoothness of the adjustment process. After the adjustment is in place and locked by the self-locking thread pair, the double-point support structure further suppresses the micro-movement of the tooth 310 due to vibration or impact in subsequent operations, making it less likely for the engagement depth and contact position of the tooth 310 and the stiffener 410 to shift. This helps reduce the safety risk of the garbage can 400 slipping and falling during the overturning process, and also helps to keep the force distribution on the edge of the can uniform when the pressure plate 110 applies pressure, reducing the possibility of local stress concentration causing the edge of the can to be crushed due to changes in the force state.

[0049] Meanwhile, as the oscillation of the gear 310 is suppressed, the additional alternating bending stress borne by its root and connecting structure is also reduced accordingly, and the stress distribution becomes more stable. This helps to improve the fatigue state of the root of the gear 310 and reduce the probability of fatigue crack initiation and development into fracture failure.

[0050] Furthermore, the screw 320 is provided with at least two external threads 323; Each tooth 310 is threadedly engaged with an external thread 323; In the second direction X, the directions of rotation of two adjacent external threads 323 on the same screw 320 are opposite; and the two adjacent external threads 323 on the first screw 321 are located between the two adjacent external threads 323 on the second screw 322.

[0051] In this way, when adjusting the spacing of the hanging teeth 310, rotating any screw 320 will cause each hanging tooth 310 that is threaded to it to move in opposite directions and with equal displacement due to the opposite rotation direction of the adjacent external threads 323. This achieves synchronous and symmetrical opening and closing of each hanging tooth 310, thereby quickly adapting to different spacing of the ribs 410 in the trash can 400. This symmetrical movement does not cause the center of force of the resultant force on the trash can 400 to shift, which helps to balance the force on both sides of the trash can 400 during the flipping process and improves the stability of the movement.

[0052] Meanwhile, since the adjacent external threads 323 on the first screw 321 are located between the adjacent external threads 323 on the second screw 322, it means that when each tooth 310 is arranged along the second direction X, it must cooperate with the external thread 323 of one of the screws, and simultaneously slide with the corresponding optical axis 324 of the other screw, to ensure the stability of the angle of the tooth 310.

[0053] Optionally, all the hook teeth 310 are symmetrically distributed about a preset center line O, which is parallel to the first direction Y, to ensure that each hook tooth 310 in a single hook assembly 300 is mirror-symmetrically distributed on the tilting frame 100 with the design center. This ensures that the center of action of the entire hook assembly 300 always coincides with the preset center line O. That is, no matter how the spacing of the hook teeth 310 is adjusted, the center of action of the resultant force of all hook teeth 310 will not shift laterally and can always act on the symmetrical line of the edge of the trash can 400.

[0054] In this way, during the tipping and loading process, the lifting force and tipping torque applied to the garbage bin 400 by the hook tooth 310 are symmetrical and uniform, and the load on both sides is balanced, which helps to improve the posture stability of the garbage bin 400 during the lifting and tipping process.

[0055] Understandably, there is no limit to the number of threaded teeth 310 on a single screw 320. For example, for the currently common trash can model 400, a set of hanging bin components 300 can be equipped with two screws 320 (e.g., a first screw 321 and a second screw 322) and four hanging teeth 310. The two outermost hanging teeth 310 (e.g., defined as the first hanging tooth 312 and the fourth hanging tooth 315) are connected to the two external threads 323 on the first screw 321. The screw 310 engages with the two sections of the optical axis 324 on the second screw 322, while simultaneously engaging with the two sections of the optical axis 324 on the first screw 321. Similarly, the two centrally located teeth 310 (e.g., the second teeth 313 and the third teeth 314, with the first teeth 312, the second teeth 313, the third teeth 314, and the fourth teeth 315 arranged alternately along the second direction X) engage with the two sections of the external thread 323 on the second screw 322, while simultaneously engaging with the two sections of the optical axis 324 on the first screw 321.

[0056] When the first screw 321 is rotated, only the two outer hook teeth 310 move synchronously and symmetrically in the second direction X, facing each other or away from each other, while the two inner hook teeth 310 remain stationary. When the second screw 322 is rotated, the two inner hook teeth 310 move while the outer ones remain stationary. This allows for independent adjustment of the spacing between the inner and outer sets of hook teeth 310, thus accommodating the variations in the spacing of the ribs 410 of the trash can 400, which are symmetrically arranged from the center to both sides. This improves the compatibility of the hook teeth 310 with the multiple ribs 410 of the irregularly shaped trash can 400. Of course, in some embodiments not shown, a single hanging tooth 310 can also directly slide with the tipping frame 100. In this case, only one screw 320 is needed to limit the angle of the hanging tooth 310. In other words, a single hanging tooth 310 directly slides with the tipping frame 100, and the spatial angle of the hanging tooth 310 is limited by a single screw 320. Thus, the spacing adjustment and posture locking of the hanging tooth 310 are achieved by the same screw 320. When the screw 320 rotates, the hanging tooth 310 can slide along the tipping frame 100 to a position that matches the actual spacing of the rib plate 410 of the trash can 400, thereby completing the longitudinal fixation and angular constraint of the hanging tooth 310.

[0057] To achieve rotatable mounting of the screw 320 relative to the tilting drum frame 100, continue to refer to... Figure 3The screw 320 is rotatably mounted on the carriage 200 via two bearing seats 330 (the bearing seats 330 and the carriage 200 can be integrally formed or assembled separately); this ensures that the screw 320 maintains good straightness throughout its entire length, thereby guaranteeing the stable fit accuracy between the external thread 323 and the threaded hole 311 of the gear 310. Simultaneously, the low-friction rotating pair provided by the bearing seats 330 makes the rotation of the screw 320 easier and smoother, facilitating rapid and precise pitch adjustment and improving the efficiency of switching between different sizes of trash cans 400 at the work site.

[0058] refer to Figure 4 The carriage 200 is provided with two hanging bucket assemblies 300 along the second direction X, wherein the screws 320 in the two hanging bucket assemblies 300 are coaxially connected one-to-one.

[0059] By coaxially connecting the corresponding screws 320 in the two hanging bin assemblies 300, rotating either screw 320 simultaneously drives all the hanging teeth 310 in the two hanging bin assemblies 300 that cooperate with the screw 320 to move symmetrically towards or away from each other along the second direction X, achieving synchronized adjustment of the spacing between the hanging teeth 310 on both sides. This allows for the simultaneous hanging of two identical garbage bins 400.

[0060] One end of the screw 320 is provided with a flat section (such as only one flat section or such as Figure 5 The multi-faceted shaft head 325, which is formed by multiple flat sections connected in the circumferential direction, provides a reliable and direct operating interface for hand tools. The flat section structure can effectively transmit the rotational torque applied by the wrench or drive shaft, reducing the possibility of relative sliding between the tool and the cylindrical surface of the screw 320 during tightening, which may cause the operation to be ineffective. This makes the adjustment of the spacing of the gear teeth 310 faster and less strenuous.

[0061] Further reference Figure 3 and Figure 5 To make it easier to manually tighten the screw 320 with a wrench, a polygonal force-applying assembly 340 is fixed at one end of the screw 320 (i.e., the shaft head 325). The polygonal outline of the force-applying assembly 340 increases the contact lever arm with tools such as wrenches. When the operator applies the same amount of hand force, a larger rotational torque can be generated on the screw 320, making it more convenient and labor-saving.

[0062] In addition, in some embodiments not shown, the transmission module may also employ other transmission mechanisms, such as gear and rack mechanisms, synchronous belt mechanisms, etc.

[0063] Optionally, the tipping and feeding mechanism also includes a drive component, which may be a linear motor, a rotor motor, or a hydraulic motor, for driving the hanging gear 310 to slide along the second direction X; thus, the drive component is used to drive the feed (e.g., when the drive component is a rotor motor or a hydraulic motor, the end of its rotor shaft is connected to the end of the screw 320 via a connection such as...). Figure 6 The coupling 370 and the second key 371 shown are connected, and the stator is fixed relative to the slide 200. When the driving component is a linear motor, its stator is also fixed relative to the slide 200, and the moving part is connected to the gear 310. The gear 310 slides along the second direction X, realizing the mechanization and automation of the gear 310 spacing adjustment.

[0064] Replacing manual turning with machine power significantly improves the response speed and stability of adjustment. When it is necessary to frequently switch between different sizes of garbage bins 400 at the work site, the adjustment time of the tooth spacing 310 is greatly shortened, thereby improving the continuous operation efficiency and production cycle of garbage collection and transportation.

[0065] refer to Figure 7 An encoder 390 is installed at the other end of the screw 320, which can detect the rotation angle of the screw 320 in real time (that is, the rotation angle of the rotor of the rotor motor or hydraulic motor), and thus easily determine the current position of the gear 310.

[0066] Second Embodiment Unlike the first embodiment, reference Figure 8 and Figure 9 In this embodiment, one of the hook tooth 310 and the slide 200 is provided with a waist-shaped hole 316, and the other is detachably connected to a fastener 380 passing through the waist-shaped hole 316 (for example, if the hook tooth 310 is provided with a waist-shaped hole 316, the fastener 380 such as a screw passes through the waist-shaped hole 316 and is threadedly connected to the slide 200); wherein, the length direction of the waist-shaped hole 316 is along the second direction X.

[0067] Therefore, after loosening the fastener 380, the hook tooth 310 can slide continuously relative to the waist-shaped hole 316 in the second direction X. After sliding to a position that matches the actual spacing of the rib plate 410 of the trash can 400, the fastener 380 is tightened again, thus completing the adaptive adjustment of the spacing. This allows the spacing of the hook tooth 310 to be steplessly adapted to the actual spacing of the rib plate 410 of trash cans 400 from different manufacturers and batches.

[0068] Third Embodiment This invention discloses a method for adjusting the position of the gear teeth, which can be applied to the tipping and feeding mechanism of the first embodiment. It can be stored in the controller of the garbage truck and can be read and executed by the controller.

[0069] In this embodiment, the drum tipping and feeding mechanism also includes a drum tipping frame 100, a slide 200 movable along the first direction Y and disposed on the drum tipping frame 100, a plurality of hanging teeth 310 disposed on the slide 200, and a driving member for driving the hanging teeth 310 to slide along the second direction X. When the hook 310 is located between the first stiffener 411 and the second stiffener 412 of the trash can 400 (e.g.) Figure 4 The third tooth 314 is located between the first stiffener 411 and the second stiffener 412 (see reference). Figure 10 The method for adjusting the position of the gear includes the following steps: S100, control the drive unit to run in the forward direction, so as to drive the gear 310 along the forward direction of the second direction X (i.e., Figure 4 and Figure 7 Slide the X (left) in the middle; S200, when the gear 310 contacts the first stiffener 411, the control drive stops and records the motion physical quantity of the drive as the first physical quantity; wherein, the motion physical quantity includes the rotation angle of the rotor of the rotor motor or hydraulic motor or the translation distance of the mover of the linear motor. S300, control the drive unit to run in reverse, so as to drive the gear 310 in the reverse direction of the second direction X (i.e., Figure 4 and Figure 7 Slide the X to the right (in the middle). S400, when the gear 310 touches the second stiffener 412, the control drive component stops and the physical quantity of the drive component's motion is recorded as the second physical quantity. S500, determine the return physical quantity based on the first physical quantity and the second physical quantity; S600 is the physical quantity that controls the forward and return movement of the drive components.

[0070] Thus, the drive mechanism actively propels the hook tooth 310 to sequentially contact the first rib plate 411 and the second rib plate 412 on the trash can 400, recording the physical quantities of motion at each contact. This automatically calculates and returns the hook tooth 310 to its centered position between the two rib plates 410. This automatic centering and positioning process eliminates reliance on manual visual inspection or experience-based estimation for the final positioning of the hook tooth 310. Instead, it uses the actual boundary of the rib plate 410 of the trash can 400 as the measurement benchmark, achieving precise control through "measurement-based adaptation."

[0071] The entire centering and adjustment process is automatically executed by the controller. Operators only need to issue instructions and do not need to manually measure or repeatedly adjust, which greatly simplifies the operation process, shortens the adjustment time, and helps to improve the continuity and efficiency of waste collection and transportation operations.

[0072] In this way, since the hanging tooth 310 is centrally positioned in the middle of the gap between the two stiffening plates 410, it maintains a uniform and sufficient gap with both sides of the stiffening plates 410, which can minimize the possibility of structural interference between the hanging tooth 310 and the stiffening plates 410. When the pressure plate 110 applies pressure to the barrel rim as it descends, the hanging tooth 310 only contacts the barrel rim area below the stiffening plates 410, avoiding direct compression or collision between the hanging tooth 310 and the stiffening plate 410 body. This significantly reduces the risk of structural collapse due to local stress concentration at the barrel rim caused by interference.

[0073] Meanwhile, the central position ensures that the hook tooth 310 can accurately and fully engage with the effective load-bearing part of the bin rim, with sufficient engagement depth and consistency on both sides. This makes the cooperation between the trash can 400 and the hook tooth 310 more stable during the flipping process, which helps to reduce the risk of the trash can 400 slipping and falling due to engagement deviation or unilateral detachment.

[0074] Of course, it is understandable that if the structural feature of each hanging bin assembly 300 in the first embodiment, which includes two screws 320 and four hanging teeth 310, is adopted, then the above steps S100-S600 need to be executed twice to adjust the position of the four hanging teeth 310 to the center (since the ribs 410 on the garbage bin 400 are symmetrically distributed from the center position to both sides). For example, in the first execution, the first screw 321 is rotated by the driving component (i.e., the rotor motor or hydraulic motor) to drive the two outer hanging teeth 310 that are threaded with it to complete the centering; in the second execution, the second screw 322 is rotated to drive the two inner hanging teeth 310 to complete the centering. Through two independent automatic centering processes, the four hanging teeth 310 can be positioned in the center of the corresponding rib 410 gap, based on the actual boundary of their respective rib 410.

[0075] Alternatively, the return physical quantity C can be determined according to the following formula:

[0076] Where A represents the first physical quantity and B represents the second physical quantity.

[0077] In this way, the return physical quantity C is determined by taking the arithmetic mean of the first physical quantity A and the second physical quantity B. This ensures that after the tooth 310 travels forward C from the second rib plate 412, it stops precisely at the geometric center position between the first rib plate 411 and the second rib plate 412. This calculation method is directly based on the actual contact boundary of the rib plate 410 of the current trash can 400. Regardless of how the spacing of the rib plate 410 varies due to manufacturers, batches, or wear, the corresponding center point physical quantity can be obtained through simple averaging calculation, achieving seamless automatic adaptation to different trash can 400 structural dimensions.

[0078] Moreover, the formula requires very little computation, only one addition and one division operation. The controller has high execution efficiency and rapid adjustment response, which helps to shorten the overall time of automatic centering on site and improve work efficiency.

[0079] If the drive unit includes a linear motor or a rotor motor; during the forward or reverse operation of the drive unit, when the motor current increases from the rated current to the stall current, the drive unit is controlled to stop. This approach utilizes the inherent characteristic of the motor's current suddenly increasing from its rated value to the stall current (i.e., peak current) as the determination signal for the tooth 310 to contact the stiffener 410. This eliminates the need to install additional contact sensors, limit switches, or other detection components at the tooth 310 or stiffener 410 positions, simplifying the system hardware configuration and wiring complexity.

[0080] During the movement of the tooth 310, when the tooth 310 is not in contact with the rib plate 410, the load is only the frictional resistance of the mechanism itself, and the motor maintains a low rated current. Once the tooth 310 touches the rib plate 410, the movement is obstructed, the motor rotor is instantly stalled, and the winding current rises sharply to the stall current. The controller monitors the current change in real time and immediately stops the drive when the stall current is detected, making the contact stop response of the tooth 310 timely and consistent. This detection method based on current change is rapid and can effectively limit the squeezing force and squeezing time of the tooth 310 on the rib plate 410, thereby reducing the mechanical damage to the surface coating or structure of the rib plate 410 during the contact process and helping to maintain the integrity of the rib plate 410 of the trash can 400.

[0081] If the drive unit includes a hydraulic motor, the drive unit is stopped when the pressure of the hydraulic system supplying oil to the hydraulic motor increases to the overflow pressure during the forward or reverse operation of the drive unit.

[0082] By raising the hydraulic system pressure to the overflow pressure as the determination signal for the gear 310 to contact the stiffener 410, the inherent characteristics of the hydraulic motor and oil supply circuit are utilized to achieve direct feedback of the hydraulic system's own working parameters to the mechanical contact state. This eliminates the need to install additional contact sensors, proximity switches, or other detection elements at the gear 310 or stiffener 410, thus simplifying the system composition.

[0083] When the tooth 310 is not in contact with the rib plate 410, the hydraulic motor drives the load only due to the frictional resistance of the mechanism, and the system pressure remains at a low working pressure level. When the tooth 310 touches the rib plate 410 and cannot continue to move, the hydraulic motor displacement is obstructed, and the hydraulic oil pressure in the closed circuit rises rapidly until it reaches the set pressure of the overflow valve and begins to overflow. When the controller detects that the system pressure has reached the overflow pressure threshold, it controls the hydraulic motor to stop, so that the contact action of the tooth 310 with the rib plate 410 is stopped in time. This stop control response based on the pressure overflow signal is clear and can effectively limit the peak pressure and duration of the tooth 310 pressing on the rib plate 410, thereby helping to reduce the mechanical damage that the contact process may cause to the surface coating or structure of the rib plate 410 of the trash can 400, and maintaining the integrity of the rib plate 410 of the trash can 400.

[0084] It is understandable that the detection of the motion physical quantities of the driving component can be achieved by an encoder 390 for rotor motors and hydraulic motors. For example, in the two-bucket assembly 300, the encoder 390 and the driving component are respectively set at the ends of the two coaxially connected screws 320 that are far apart from each other. That is, the encoder 390 is set at one end, and the rotor of the driving component is coaxially connected at the other end. Thus, the rotation angle of the screw 320 is read by the encoder 390. Since the transmission ratio between the screw 320 and the rotor of the driving component is 1:1, the rotation angle of the screw 320 is also the rotation angle of the rotor of the driving component.

[0085] At this point, "forward operation" means the rotor rotates forward, and "reverse operation" means it rotates in reverse. Of course, the encoder 390 can also be directly integrated into the drive unit to read the rotation angle of the rotor.

[0086] For linear motors, the translation distance of the mover can be read directly through its built-in linear displacement sensor (such as an optical scale or magnetic scale).

[0087] At this point, the so-called "forward movement" is the forward translation of the mover along the second direction X, and the "reverse movement" is the reverse translation of the mover along the second direction X.

[0088] Finally, it should be noted that in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tipping drum feeding mechanism, characterized in that, Includes a bucket tipping rack (100), a slide (200), and a bucket hanging assembly (300); The slide (200) is movable along the first direction (Y) and disposed on the tipping rack (100). The bucket assembly (300) includes a plurality of hanging teeth (310) disposed on the carriage (200) and spaced apart along the second direction (X), wherein the first direction (Y) and the second direction (X) are perpendicular; The position of the hook tooth (310) relative to the carriage (200) can be adjusted along the second direction (X).

2. The tipping drum feeding mechanism according to claim 1, characterized in that, The bucket assembly (300) further includes a transmission module connected to the hanging tooth (310) for driving the hanging tooth (310) to slide relative to the carriage (200) in the second direction (X).

3. The bucket-turning rack (100) according to claim 2, characterized in that, The transmission module includes a screw (320) extending along the second direction (X) and a threaded hole (311) provided on the gear (310). The screw (320) and the threaded hole (311) form a self-locking threaded engagement.

4. The tipping drum feeding mechanism according to claim 3, characterized in that, The transmission module includes at least two screws (320) spaced apart in the first direction (Y). The screw (320) is provided with an optical axis (324) and an external thread (323) distributed along the second direction (X); In the first direction (Y), two adjacent screws (320) are respectively the first screw (321) and the second screw (322). The hanging tooth (310) that is threadedly engaged with the external thread (323) on the first screw (321) is slidably sleeved on the optical shaft (324) on the second screw (322). The hanging tooth (310) that engages with the external thread (323) on the second screw (322) is slidably sleeved on the optical shaft (324) on the first screw (321).

5. The tipping drum feeding mechanism according to claim 4, characterized in that, The screw (320) is provided with at least two external threads (323); Each of the aforementioned teeth (310) is threadedly engaged with a section of the aforementioned external thread (323); In the second direction (X), the directions of rotation of two adjacent external threads (323) on the same screw (320) are opposite; and two adjacent external threads (323) on the first screw (321) are located between two adjacent external threads (323) on the second screw (322).

6. The tipping drum feeding mechanism according to claim 5, characterized in that, All of the gear teeth (310) are symmetrically distributed about a preset center line (O), which is parallel to the first direction (Y).

7. The tipping drum feeding mechanism according to any one of claims 3-6, characterized in that, One end of the screw (320) is provided with a flat section; And / or, One end of the screw (320) is fixed with a polygonal force-applying assembly (340). And / or, The screw (320) is rotatably mounted on the carriage (200) via two bearing seats (330); And / or, The carriage (200) is provided with two hanging bucket assemblies (300) along the second direction (X), wherein the screws (320) in the two hanging bucket assemblies (300) are coaxially connected one-to-one.

8. The tipping drum feeding mechanism according to claim 1, characterized in that, The tipping and feeding mechanism also includes a driving component, which includes a linear motor, a rotor motor or a hydraulic motor, for driving the hanging teeth (310) to slide along the second direction (X); And / or, One of the hook tooth (310) and the carriage (200) is provided with a waist-shaped hole (316), and the other is detachably connected to a fastener (380) passing through the waist-shaped hole (316); wherein the length direction of the waist-shaped hole (316) is along the second direction (X).

9. A method for adjusting the position of the gear teeth, applied to a tipping drum feeding mechanism, characterized in that, The drum tipping and loading mechanism includes a drum tipping frame (100), a slide (200) movable along a first direction (Y) and disposed on the drum tipping frame (100), a plurality of hanging teeth (310) disposed on the slide (200), and a driving member for driving the hanging teeth (310) to slide along a second direction (X), wherein the first direction (Y) is perpendicular to the second direction (X). When the hook tooth (310) is located between the first rib plate (411) and the second rib plate (412) of the trash can (400), the hook tooth position adjustment method includes the following steps: The control drive operates in the forward direction to drive the gear (310) to slide in the forward direction of the second direction (X); When the gear (310) touches the first stiffener (411), the driving component is controlled to stop, and the physical quantity of motion of the driving component is recorded as the first physical quantity; wherein, the physical quantity of motion includes the rotation angle of the rotor of the rotor motor or hydraulic motor or the translation distance of the mover of the linear motor. Control the drive unit to run in reverse so as to drive the gear (310) to slide in the reverse direction (X); When the tooth (310) touches the second stiffener (412), the driving component is controlled to stop, and the physical quantity of the movement of the driving component is recorded as the second physical quantity. Determine the return physical quantity based on the first physical quantity and the second physical quantity; The return physical quantity is controlled to run in the forward direction by the drive component.

10. The method for adjusting the position of the gear according to claim 9, characterized in that, The return physical quantity C is determined according to the following formula: Wherein, A represents the first physical quantity and B represents the second physical quantity.

11. The method for adjusting the position of the gear according to claim 9 or 10, characterized in that, The driving component includes a linear motor or a rotor motor; during the forward or reverse operation of the driving component, when the motor current increases from the rated current to the stall current, the driving component is controlled to stop. or, The drive component includes a hydraulic motor; during the forward or reverse operation of the drive component, when the pressure of the hydraulic system used to supply oil to the hydraulic motor increases to the overflow pressure, the drive component is controlled to stop.

12. A garbage truck, characterized in that, Includes a controller and / or the tipping drum feeding mechanism as described in any one of claims 1-8; The controller is used to store, read, and execute the gear position adjustment method according to any one of claims 9-11.

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