Garbage sweeping head of road sweeper

Abstract

The utility model provides a garbage sweeping head of a road sweeper. The garbage sweeping head is provided with a chassis assembly, a brushing and sweeping assembly and a driving assembly. Supporting wheels are arranged on the bottom surface of a chassis of the chassis assembly; a main shaft capable of rotating in situ is erected in the center of the top surface of the chassis; the brushing and sweeping assembly fixedly sleeves the middle section of the spindle and synchronously rotates along with the spindle; the driving assembly is provided with a middle supporting frame, a step limiting ring, a lifting ring and a worm and gear speed reducer, the middle supporting frame is rotatably connected to the upper section of the main shaft, the step limiting ring is connected to the lower portion of the middle supporting frame, and an upper jacking pulley of a brush head module of the brushing and sweeping assembly elastically abuts against the step limiting ring; the lifting ring and the worm and gear speed reducer are connected to the upper portion of the middle supporting frame. The garbage sweeping head can continuously sweep garbage from the side of the front of the vehicle to the middle line of the front of the vehicle, the parts, which touch the ground, of the bristles are more and uniform during brushing and sweeping, and the situation that sweeping is missed is not prone to occurring. The garbage cleaning head can easily deal with various bumpy road surface conditions, can guarantee stable work, and also has a cleaning effect.

Description

Technical Field

[0001] The utility model relates to a component of a road sweeper, in particular to a garbage sweeping head installed at the lower front part of the road sweeper, belonging to the technical field of sanitation machinery and equipment. Background Art

[0002] The working process of the road sweepers currently on the market is as follows: first, the side brush sweeps the garbage on the road inward to the range that the main brush can sweep, then the main brush sweeps the garbage to the front of the suction cup, and finally the suction cup continuously sucks the garbage swept by the main brush into the on-board garbage bin. The suction cup of the existing road sweeper uses negative pressure suction to transfer garbage. Due to the large differences in the size and weight of garbage on the road, in order to suck it clean, it is necessary to equip a high-power fuel engine to drive the fan for suction, which is not conducive to controlling the power consumption and emissions of the entire vehicle. In addition, the side brush of the existing road sweeper only relies on the simple tilting of the brush plate to sweep the garbage inward. The part of the bristles that touch the ground is small and uneven, which easily leads to missed areas and poor cleaning effect.

[0003] To this end, we have developed a new type of road sweeper that uses a combination of roller brush and spiral conveying to convey garbage. It is equipped with a garbage cleaning head, a garbage rolling brush and a garbage collection conveyor at the bottom of the front, middle and rear parts of the vehicle body. During the driving process of the vehicle body, the garbage cleaning head rotates and brushes the road and the curbs beside the vehicle body, and sweeps the garbage from the front side of the vehicle to the center line of the front of the vehicle. The garbage rolling brush then rolls and sweeps the road the vehicle passes and sweeps the garbage from the side of the bottom of the vehicle to the center line of the bottom of the vehicle. Finally, the garbage collection conveyor uses a combination of roller brush and spiral conveying to convey the garbage swept on the center line of the bottom of the vehicle upward to the vehicle-mounted garbage bin for collection. Since the road sweeper does not need to use negative pressure suction to convey garbage and completely uses batteries as power, it can effectively reduce the power consumption and emissions of the entire vehicle. The utility model is a garbage cleaning head installed at the bottom of the front of the road sweeper. Utility Model Content

[0004] The utility model aims to provide a garbage sweeping head of a road sweeper, which is installed under the front part of the vehicle body and is used for rotating and sweeping the road and the curb beside the vehicle body and sweeping the garbage from the front side of the vehicle to the front center line of the vehicle.

[0005] The specific technical solution of the utility model is as follows:

[0006] A garbage sweeping head of a road sweeper is provided with a chassis component, a brush sweeping component and a driving component.

[0007] The chassis assembly is provided with a chassis, a group of evenly distributed supporting wheels are arranged on the periphery of the bottom surface of the chassis, and a vertical main shaft which can rotate in situ is arranged in the center of the top surface of the chassis through a bearing frame.

[0008] A brush head mounting seat is provided at the center of the brush sweeping assembly, and a core barrel is provided at the center of the brush head mounting seat. A plurality of pairs of radially outward-extending vertical clips are evenly welded on the outer circumference of the core barrel. The brush head mounting seat is fixedly mounted on the middle section of the main shaft of the chassis assembly through the core barrel and rotates synchronously with the main shaft. Each pair of clips of the brush head mounting seat is hinged in the clip groove to have a brush head module that extends outward and can deflect up and down; the brush head module is provided with a brush handle that extends downward at an angle, and the rear end of the brush handle is hinged in the clip groove of the clip through a brush handle pin shaft, and a horizontally outward-extending strip brush is fixedly installed at the front end of the brush handle, and the bristles of the strip brush extend obliquely downward and outward, and an upper pulley that extends upward is fixedly connected to the upper side of the front end of the brush handle, and an upper pull spring is connected between the middle part of the brush handle and the clip, and the brush head module is elastically pulled upward by the upper pull spring.

[0009] The driving assembly is provided with an intermediate support frame, a stepped limiting ring, a lifting ring and a worm gear reducer; a central cylinder is provided in the center of the intermediate support frame, the inner cylinder of the central cylinder is rotatably connected to the upper section of the main shaft of the chassis assembly through a bearing and is provided with a lock nut for locking, and a group of support rods uniformly distributed along the circumference and extending radially are fixedly welded to the lower part of the outer circumference of the central cylinder; the stepped limiting ring is a flat circular ring spliced ​​by a front half circle and a rear half circle, the plane of the rear half circle is higher than the plane of the front half circle and the two splicing places of the rear half circle and the front half circle are provided with The inclined surface is used for transition, and the upper end face of the step limit ring is provided with an upper support plate connected to the support rod of the middle support frame. Under the pulling of the upper pulley of the brush head module of the brush sweeping assembly, the upper pulleys of each brush handle are elastically pressed against the lower end face of the step limit ring; a radially outward-extending support plate is fixedly welded to the upper part of the outer circumference of the central cylinder of the middle support frame, and the top surface of the support plate is respectively welded with upward extending screws on the front and rear sides, and the top surface of the support plate is respectively welded with upwardly supported support door frames on the left and right sides, and the upper fixed frames of the two support door frames are provided with worm gears and worm wheels. The output end of the worm gear reducer is fixedly connected to the upper end of the main shaft of the chassis assembly, and the main shaft is driven by the worm gear reducer to rotate in situ; the lifting ring is provided with a horizontally arranged thick-walled circular ring, and a radially extending connecting handle is welded on the rear side of the outer circumference of the thick-walled circular ring. The inner circumference of the thick-walled circular ring is provided with fisheye joint bearings on the front and rear sides respectively through fixed support plates. The inner circumference of the thick-walled circular ring is connected with a pair of limit tension springs extending obliquely upward and downward at both sides of the two fisheye joint bearings, and the lower side of the thick-walled circular ring is connected with A group of lower suspension chains evenly distributed along the circular ring; the lifting ring is movably connected to the two upward extension screws of the middle support frame through two fisheye joint bearings, and the upward extension screws are sleeved with buffer springs at the upper and lower ends of the corresponding fisheye joint bearings, and the upper part of the upward extension screw is also provided with a pressing nut to press the buffer spring, the ends of each pair of limit tension springs in the lifting ring are respectively connected to the upper and lower ends of the door columns of the two supporting door frames, the ends of each lower suspension chain below the lifting ring are respectively connected to the corresponding hanging ears on the top surface of the support plate, and the lower suspension chains remain in a relaxed state.

[0010] The garbage cleaning head is also equipped with a yaw and swing lifting assembly, which is provided with a supporting platform fixedly connected to the front end of the frame, a vertical spindle is fixedly provided on the top surface of the supporting platform, and an outer sleeve rotatable around the spindle is mounted on the outer side of the spindle through tapered roller bearings at the upper and lower ends of the spindle, a radially outward-extending first gear is fixedly connected to the lower end of the outer sleeve, and a second gear driven by a yaw drive motor is also mounted on one side of the supporting platform to mesh with the first gear; an upper and lower connecting rod is hinged on the upper part of the outer circumference of the outer sleeve, the other ends of the two connecting rods extend in parallel and are hinged to the end of the connecting handle of the driving assembly lifting ring, an electric push rod is hinged on the lower part of the outer circumference of the outer sleeve at a position directly below the corresponding connecting rod hinge point, and the push head of the electric push rod is hinged to the middle part of the lower connecting rod; the horizontal yaw and up and down lifting of the entire garbage cleaning head are respectively controlled by the yaw drive motor and the electric push rod.

[0011] When the garbage cleaning head is working, the rotating brush sweeping assembly can perform road sweeping work. When the upper pulley of the brush head module rolls to the front half circle against the step limit ring, the strip brush of the brush head module automatically presses down to make the bristles touch the ground for brushing and sweeping. When the upper pulley of the brush head module rolls to the rear half circle against the step limit ring, the strip brush of the brush head module automatically lifts up to make the bristles leave the ground. Thus, the rotating brush sweeping assembly can continuously sweep the garbage from the front side of the vehicle to the front center line of the vehicle. Moreover, when brushing, the bristles of the strip brush touch the ground more and more evenly, and it is not easy to miss any place. The bristles of the strip brush that extend obliquely can also effectively brush the corners of the curb beside the vehicle. The lifting ring and the middle support frame of the garbage cleaning head are connected by a fisheye joint bearing, and are equipped with a buffer spring and a limit tension spring. The garbage cleaning head can adaptively swing and rise and fall slightly according to road conditions during operation. Therefore, the garbage cleaning head can easily cope with various rugged road conditions, which can not only ensure smooth operation but also take into account the cleaning effect. When there is a large depression in the road surface, the garbage cleaning head can also be hung up by the lower suspension chain to prevent it from falling into it. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the garbage cleaning head.

[0013] Figure 2 This is a right side facing view of the garbage removal head.

[0014] Figure 3 This is an exploded view of the components of this garbage cleaning head.

[0015] Figure 4 It is a three-dimensional schematic diagram of the chassis assembly (bottom side facing up).

[0016] Figure 5 A three-dimensional schematic diagram of the brush sweeping component.

[0017] Figure 6 A three-dimensional schematic diagram of a drive component.

[0018] Figure 7 It is a right side facing view of the drive assembly.

[0019] Figure 8 Exploded view of the drive assembly.

[0020] Fig. 9 Right side view of the garbage cleaning head after adding the cover (cover cut away).

[0021] Fig.10 The schematic diagram is that the lower connecting rod of the yaw lifting assembly is provided with an elastic swing rod and an electric push rod articulated.

[0022] Fig.11 This is a top-down schematic diagram of two garbage cleaning heads installed at the front end of a vehicle frame when used in pairs.

[0023] In the figure: 1-chassis, 1.1-positioning center hole, 2-support wheel, 3-main shaft, 4-brush head mounting seat, 4.1-core tube, 4.2-clamp, 5-brush head module, 5.1-brush handle, 5.2-strip brush, 5.3-upper pulley, 6-pull-up spring, 7-middle support frame, 7.1-center tube, 7.2-support rod, 7.3-support plate, 7.4-upper extension screw, 7.5-support door frame, 8-step limit ring, 8.1-upper support plate, 9-lifting ring, 9.1-thick wall ring, 9.2-connecting handle, 9.3-fisheye joint shaft Bearing, 9.4-limit tension spring, 9.5-lower suspension chain, 10-worm gear reducer, 11-buffer spring, 12-top pressure nut, 13-cover, 13.1-cloth enclosure, 14-support platform, 15-spindle, 16-outer sleeve, 17-first gear, 18-sway drive motor, 19-second gear, 20-connecting rod, 21-electric push rod, 22-support plate, 22.1-boss, 23-rotation drive motor, 24-double-axis forward and reverse output reducer, 25-flexible shaft connecting rod, 26-rocker, 27-spring shock absorber. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings. In the description of the utility model, the directional words "front", "back", "left", "right", "up", and "down" are based on the accompanying drawings of the specification. Figure 1 and Figure 8 The orientation or position relationship indicated in the figure is only for the convenience of description, and does not refer to the specific orientation that the device or element must have, and should not be regarded as a limitation of the present invention.

[0025] like Figure 1-8 As shown, the garbage sweeping head of the road sweeper is provided with a chassis assembly, a brush sweeping assembly and a driving assembly.

[0026] The chassis assembly is provided with a chassis 1, a group of evenly distributed support wheels 2 are provided on the periphery of the bottom surface of the chassis 1, and a vertical spindle 3 that can rotate in situ is provided through a bearing frame at the center of the top surface of the chassis 1. Further, the support wheels 2 include a fixed wheel and a plurality of universal wheels.

[0027] The center of the brush sweeping assembly is provided with a brush head mounting seat 4, the center of the brush head mounting seat 4 is provided with a core barrel 4.1, and a plurality of pairs of radially outward vertical clips 4.2 are evenly welded on the outer circumference of the core barrel 4.1. The brush head mounting seat 4 is fixedly sleeved on the middle section of the main shaft 3 of the chassis assembly through the core barrel 4.1 and rotates synchronously with the main shaft 3. Each pair of clips 4.2 of the brush head mounting seat 4 is hinged in the clip groove with a brush head module 5 extending outward and deflectable up and down; the brush head module 5 is provided with A brush handle 5.1 extends downward at an angle, and the rear end of the brush handle 5.1 is hinged in the clamping groove of the clamping piece 4.2 through a brush handle pin shaft. A horizontally extending strip brush 5.2 is fixedly installed at the front end of the brush handle 5.1, and the bristles of the strip brush 5.2 extend obliquely downward and outward. An upper pulley 5.3 extending upward is fixedly connected to the upper side of the front end of the brush handle 5.1, and an upper pull spring 6 is connected between the middle part of the brush handle 5.1 and the clamping piece 4.2, and the brush head module 5 is elastically pulled upward by the upper pull spring 6.

[0028] The driving assembly is provided with an intermediate support frame 7, a stepped limiting ring 8, a lifting ring 9 and a worm gear reducer 10; a central cylinder 7.1 is provided in the center of the intermediate support frame 7, the inner cylinder of the central cylinder 7.1 is rotatably connected to the upper section of the main shaft 3 of the chassis assembly through a bearing and is provided with a lock nut for locking, and a group of support rods 7.2 uniformly distributed along the circumference and radially extending are fixedly welded to the lower part of the outer circumference of the central cylinder 7.1; the stepped limiting ring 8 is a flat circular ring spliced ​​by a front half circle and a rear half circle, the plane of the rear half circle is higher than the plane of the front half circle and the two joints of the rear half circle and the front half circle are provided with inclined surfaces for transition, and the upper part of the stepped limiting ring 8 is fixedly welded to the lower part of the outer circumference of the central cylinder 7.1. An upper support plate 8.1 is provided on the end face and is connected to the support rod 7.2 of the intermediate support frame 7. When the brush head module 5 of the brush sweeping assembly is pulled by the upper pulley 5.3 of each brush handle 5.1 elastically rests on the lower end face of the stepped limit ring 8; a radially outward-extending support disk 7.3 is fixedly welded to the upper outer circumference of the central tube 7.1 of the intermediate support frame 7, and an upward extending screw rod 7.4 is welded to the top surface of the support disk 7.3 on its front and rear sides respectively, and an upwardly supported support portal frame 7.5 is welded to the top surface of the support disk 7.3 on its left and right sides respectively, and a worm gear reducer 10 is fixedly mounted above the two support portal frames 7.5. The output end of the rod reducer 10 is fixedly connected to the upper end of the main shaft 3 of the chassis assembly, and the main shaft 3 is driven by the worm reducer 10 to rotate in situ; the lifting ring 9 is provided with a horizontally arranged thick-walled circular ring 9.1, and a radially extending connecting handle 9.2 is welded on the rear side of the outer circumference of the thick-walled circular ring 9.1. The inner circumference of the thick-walled circular ring 9.1 is respectively provided with fisheye joint bearings 9.3 on the front and rear sides through fixed support plates. The inner circumference of the thick-walled circular ring 9.1 is connected to a pair of limit tension springs 9.4 that extend obliquely to the upper and lower ends respectively on both sides of the two fisheye joint bearings 9.3, and the lower side of the thick-walled circular ring 9.1 is connected to a group of lower springs evenly distributed along the circular ring. Suspension chain 9.5; the lifting ring 9 is movably connected to the two upward extension screws 7.4 of the intermediate support frame 7 through two fisheye joint bearings 9.3, and the upward extension screw 7.4 is sleeved with buffer springs 11 at the upper and lower ends of the corresponding fisheye joint bearings 9.3, and the upper part of the upward extension screw 7.4 is also provided with a pressing nut 12 to press the buffer spring 11, and the ends of each pair of limit tension springs 9.4 in the lifting ring 9 are respectively connected to the upper and lower ends of the door columns of the two supporting door frames 7.5, and the ends of each lower suspension chain 9.5 below the lifting ring 9 are respectively connected to the corresponding hanging ears on the top surface of the support plate 7.3, and the lower suspension chain 9.5 remains in a relaxed state.

[0029] Furthermore, the upper support plate 8.1 of the step limit ring 8 is provided with a plurality of connection holes of different heights, and the installation height of the step limit ring 8 can be adjusted by selecting connection holes of different heights to connect with the support rods 7.2 of the intermediate support frame 7.

[0030] Further, such as Fig. 9As shown, an inverted frustum-shaped cover 13 is provided on the periphery of the support plate 7.3 of the intermediate support frame 7 through a skeleton frame, and the cover 13 covers the part of the driving assembly below the support plate 7.3, as well as the chassis assembly and the brush sweeping assembly. A circle of soft cloth enclosure 13.1 is provided on the lower edge of the cover 13, and a dust suction hole is opened on one side of the top surface of the cover 13. The dust suction hole is connected to the dust processor of the road sweeper through a dust suction pipeline, so that the dust raised by the garbage sweeping head when sweeping the ground can be sucked into the dust processor for processing, so as to prevent the dust from spreading outward.

[0031] The garbage cleaning head is also equipped with a yaw lifting assembly, which is provided with a support platform 14 fixedly connected to the front end of the frame, and a vertical spindle 15 is fixedly provided on the top surface of the support platform 14. The spindle 15 is provided with an outer sleeve 16 rotatable around the spindle on the outer side of the spindle 15 through tapered roller bearings at the upper and lower ends, and a radially outward first gear 17 is fixedly connected to the lower end of the outer sleeve 16. A second gear 19 driven by a yaw drive motor 18 and a first gear 17 are also provided on one side of the support platform 14. The gears 17 are meshed with each other; the upper part of the outer circumference of the outer sleeve 16 is hinged with two upper and lower connecting rods 20, the other ends of the two connecting rods 20 extend in parallel and are hinged to the end of the connecting handle 9.2 of the driving component lifting ring 9, and the lower part of the outer circumference of the outer sleeve 16 is hinged with an electric push rod 21 at a position just below the corresponding connecting rod hinge point, and the push head of the electric push rod 21 is hinged to the middle part of the lower connecting rod 20; the horizontal swing and up and down lifting of the entire garbage cleaning head are respectively controlled by the swing drive motor 18 and the electric push rod 21.

[0032] Furthermore, the swing lifting assembly is provided with a support plate 22 that can slide forward and backward through a slide rail under the support platform 14, and a boss 22.1 is provided at the front end of the top surface of the support plate 22, and a positioning hole 1.1 matching the boss 22.1 is provided at the center of the bottom surface of the chassis 1 of the chassis assembly. When the garbage cleaning head is not in use, it is lifted upward by the electric push rod 21, and then the support plate 22 is controlled to slide forward and extend, so that the boss 22.1 is opposite to the positioning hole 1.1 of the chassis 1, and the electric push rod 21 is slightly retracted to raise the garbage cleaning head and fix it on the support plate 22 for storage.

[0033] Further, such as Fig.10 As shown, in the deflection lifting assembly, an elastic swing rod is provided below the middle of the lower road connecting rod 20 and is hinged to the push head of the electric push rod 21. The elastic swing rod is composed of a swing rod 26 and a spring shock absorber 27, wherein the fixed end of the swing rod 26 is hinged to the lower road connecting rod 20, the swing end of the swing rod 26 is hinged to the lower end of the spring shock absorber 27, the upper end of the spring shock absorber 27 is hinged to the lower road connecting rod 20, and the push head of the electric push rod 21 is hinged to the middle rod body of the swing rod 26. By adding an elastic swing rod, the hard impact on the electric push rod 21 caused by uneven roads can be reduced.

[0034] Further, such as Fig.11 As shown, the garbage cleaning heads are used in pairs, and the two garbage cleaning heads are symmetrically distributed at the front end of the front cross beam of the frame below the front part of the vehicle body. A rotary drive motor 23 and a double-axis forward and reverse output reducer 24 are mounted at the front end of the front cross beam of the frame. The rotary drive motor 23 is connected to the input end of the double-axis forward and reverse output reducer 24. The two output ends of the double-axis forward and reverse output reducer 24 are respectively connected to the input ends of the worm gear reducer 10 of the left and right garbage cleaning heads through a flexible shaft connecting rod 25. The rotary drive motor 23 simultaneously drives the brush sweeping components of the left and right garbage cleaning heads to rotate in reverse. Looking from top to bottom, the brush sweeping component of the left garbage cleaning head rotates clockwise, and the brush sweeping component of the right garbage cleaning head rotates counterclockwise.

[0035] When the garbage cleaning head is working, the swing lifting assembly is controlled to make it swing to a suitable angle, and then the support wheel 2 of the chassis assembly is lowered to the ground. The rotary drive motor 23 then transmits power to the worm gear reducer 10 of the garbage cleaning head, thereby driving the main shaft 3 to rotate together with the brush sweeping assembly, and each brush head module 5 of the brush sweeping assembly can perform road cleaning work. Since the plane of the rear half circle of the step limiting ring 8 is higher than the plane of the front half circle, when the upper pulley 5.3 of the brush head module 5 rolls to abut against the front half circle of the step limiting ring 8, the strip brush 5.2 of the brush head module 5 is automatically pressed down to make the bristles touch the ground for brushing and sweeping; when the upper pulley of the brush head module 5 rolls to abut against the rear half circle of the step limiting ring 8, the strip brush 5.2 of the brush head module 5 is automatically lifted to make the bristles leave the ground, thereby the rotating brushing and sweeping assembly can continuously sweep the garbage from the front side of the vehicle to the front center line of the vehicle, and when brushing, the bristles of the strip brush 5.2 touch the ground in large and even parts, and it is not easy to miss any place, and the bristles of the strip brush 5.2 that are tilted and extended can also effectively brush the corners of the curb beside the vehicle. Since the lifting ring 9 of the garbage cleaning head is connected to the middle support frame 7 by a fisheye joint bearing 9.3, and is equipped with a buffer spring 11 and a limit tension spring 9.4, the garbage cleaning head can adaptively deflect and rise and fall slightly according to the road conditions during operation. Therefore, the garbage cleaning head can easily cope with various rugged road conditions, which can not only ensure stable operation but also take into account the cleaning effect. When a large depression appears on the road surface, the garbage cleaning head can be hung up by the lower suspension chain 9.5 to prevent it from falling into it.

[0036] The above-mentioned figures are only typical embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A garbage cleaning head for a road sweeper, characterized by: The garbage cleaning head is provided with a chassis assembly, a brush sweeping assembly and a driving assembly; The chassis assembly is provided with a chassis, a group of evenly distributed support wheels are provided on the periphery of the bottom surface of the chassis, and a vertical main shaft that can rotate in situ is provided in the center of the top surface of the chassis through a bearing frame; A brush head mounting seat is provided at the center of the brush sweeping assembly, and a core barrel is provided at the center of the brush head mounting seat. A plurality of pairs of radially outward-extending vertical clips are evenly welded on the outer circumference of the core barrel. The brush head mounting seat is fixedly sleeved on the middle section of the main shaft of the chassis assembly through the core barrel and rotates synchronously with the main shaft. Each pair of clips of the brush head mounting seat is hinged in the clip groove to have a brush head module that extends outward and can deflect up and down; the brush head module is provided with a brush handle that extends downward obliquely, and the rear end of the brush handle is hinged in the clip groove of the clip through a brush handle pin shaft, and a horizontally outward-extending strip brush is fixedly installed at the front end of the brush handle, and the bristles of the strip brush extend obliquely downward and outward, and an upper pulley that extends upward is fixedly connected to the upper side of the front end of the brush handle, and an upper pull spring is connected between the middle part of the brush handle and the clip, and the brush head module is elastically pulled upward by the upper pull spring; The driving assembly is provided with an intermediate support frame, a stepped limiting ring, a lifting ring and a worm gear reducer; a central cylinder is provided in the center of the intermediate support frame, the inner cylinder of the central cylinder is rotatably connected to the upper section of the main shaft of the chassis assembly through a bearing and is provided with a lock nut for locking, and a group of support rods uniformly distributed along the circumference and extending radially are fixedly welded to the lower part of the outer circumference of the central cylinder; the stepped limiting ring is a flat circular ring spliced ​​by a front half circle and a rear half circle, the plane of the rear half circle is higher than the plane of the front half circle and the two splicing places of the rear half circle and the front half circle are provided with The inclined surface is used for transition, and the upper end face of the step limit ring is provided with an upper support plate connected to the support rod of the middle support frame. Under the pulling of the upper pulley of the brush head module of the brush sweeping assembly, the upper pulleys of each brush handle are elastically pressed against the lower end face of the step limit ring; a radially outward-extending support plate is fixedly welded to the upper part of the outer circumference of the central cylinder of the middle support frame, and the top surface of the support plate is respectively welded with upward extending screws on the front and rear sides, and the top surface of the support plate is respectively welded with upwardly supported support door frames on the left and right sides, and the upper fixed frames of the two support door frames are provided with worm gears and worm wheels. The output end of the worm gear reducer is fixedly connected to the upper end of the main shaft of the chassis assembly, and the main shaft is driven by the worm gear reducer to rotate in situ; the lifting ring is provided with a horizontally arranged thick-walled circular ring, and a radially extending connecting handle is welded on the rear side of the outer circumference of the thick-walled circular ring. The inner circumference of the thick-walled circular ring is provided with fisheye joint bearings on the front and rear sides respectively through fixed support plates. The inner circumference of the thick-walled circular ring is connected with a pair of limit tension springs extending obliquely upward and downward at both sides of the two fisheye joint bearings, and the lower side of the thick-walled circular ring is connected with A group of lower suspension chains evenly distributed along the circular ring; the lifting ring is movably connected to the two upward extension screws of the middle support frame through two fisheye joint bearings, and the upward extension screws are sleeved with buffer springs at the upper and lower ends of the corresponding fisheye joint bearings, and the upper part of the upward extension screw is also provided with a pressing nut to press the buffer spring, the ends of each pair of limit tension springs in the lifting ring are respectively connected to the upper and lower ends of the door columns of the two supporting door frames, the ends of each lower suspension chain below the lifting ring are respectively connected to the corresponding hanging ears on the top surface of the support plate, and the lower suspension chains remain in a relaxed state.

2. The garbage cleaning head of the road cleaning vehicle according to claim 1 is characterized in that: The garbage cleaning head is also equipped with a yaw and swing lifting assembly, which is provided with a supporting platform fixedly connected to the front end of the frame, a vertical spindle is fixedly provided on the top surface of the supporting platform, and an outer sleeve rotatable around the spindle is mounted on the outer side of the spindle through tapered roller bearings at the upper and lower ends of the spindle, a radially outward-extending first gear is fixedly connected to the lower end of the outer sleeve, and a second gear driven by a yaw drive motor is also mounted on one side of the supporting platform to mesh with the first gear; an upper and lower connecting rod is hinged on the upper part of the outer circumference of the outer sleeve, the other ends of the two connecting rods extend in parallel and are hinged to the end of the connecting handle of the driving assembly lifting ring, an electric push rod is hinged on the lower part of the outer circumference of the outer sleeve at a position directly below the corresponding connecting rod hinge point, and the push head of the electric push rod is hinged to the middle part of the lower connecting rod; the horizontal yaw and up and down lifting of the entire garbage cleaning head are respectively controlled by the yaw drive motor and the electric push rod.

3. The garbage cleaning head of the road cleaning vehicle according to claim 2 is characterized in that: The deflection lifting assembly is provided with a support plate that can slide forward and backward through a slide rail frame below the support platform, a boss is provided at the front end of the top surface of the support plate, and a positioning center hole matching the boss is provided at the center of the bottom surface of the chassis of the chassis assembly.

4. The garbage cleaning head of the road cleaning vehicle according to claim 2 is characterized in that: In the deflection and swing lifting assembly, an elastic swing arm is provided below the middle of the lower connecting rod and is hinged to the push head of the electric push rod. The elastic swing arm is composed of a swing arm and a spring shock absorber, wherein the fixed end of the swing arm is hinged to the lower connecting rod, the swing end of the swing arm is hinged to the lower end of the spring shock absorber, the upper end of the spring shock absorber is hinged to the lower connecting rod, and the push head of the electric push rod is hinged to the middle rod body of the swing arm.

5. The garbage cleaning head of the road cleaning vehicle according to claim 1 is characterized in that: The supporting wheels of the chassis assembly include a fixed wheel and a plurality of universal wheels.

6. The garbage cleaning head of the road cleaning vehicle according to claim 1, characterized in that: The upper support plate of the step limit ring is provided with a plurality of connection holes of different heights, and the installation height of the step limit ring is adjusted by selecting connection holes of different heights to connect with the support rods of the intermediate support frame.

7. The garbage cleaning head of the road cleaning vehicle according to claim 1 is characterized in that: An inverted frustum-shaped cover is provided on the periphery of the support plate of the intermediate support frame through a skeleton frame, and the cover covers the part of the driving assembly below the support plate, as well as the chassis assembly and the brush sweeping assembly. A circle of soft cloth enclosure is provided on the lower edge of the cover, and a dust suction hole is opened on one side of the top surface of the cover, and the dust suction hole is connected to the dust processor of the road sweeper through a dust suction pipeline.

8. The garbage cleaning head of the road cleaning vehicle according to claim 1, characterized in that: The garbage cleaning heads are used in pairs, and the two garbage cleaning heads are symmetrically distributed at the front end of the front cross beam of the frame under the front part of the vehicle body. A rotary drive motor and a double-axis forward and reverse output reducer are mounted at the front end of the front cross beam of the frame. The rotary drive motor is connected to the input end of the double-axis forward and reverse output reducer, and the two output ends of the double-axis forward and reverse output reducer are respectively connected to the input ends of the worm gear reducers of the left and right garbage cleaning heads through flexible shaft connecting rods, and the rotary drive motor simultaneously drives the brush sweeping components of the left and right garbage cleaning heads to rotate in reverse.

Images