Device for maintaining cement-stabilized base of highway engineering

Abstract

The invention belongs to the technical field of highway maintenance, and discloses a highway engineering cement-stabilized base maintenance device which comprises a vehicle body, an inner cavity is formed in the vehicle body, a rotating assembly is rotationally installed on the side face of the vehicle body, and a spraying assembly and a cleaning assembly are fixedly arranged on the outer surface of the rotating assembly. By utilizing the spraying assembly, the composite output assembly and the conduction part, in the actual maintenance process, the spraying assembly can be repeatedly utilized, on one hand, the spraying assembly is used for spraying water to the road surface for maintenance, on the other hand, hot air blowing is achieved when the water surface needs to be reduced, the top of the road surface is accelerated to evaporate in cooperation with movement of the vehicle body, and the maintenance efficiency is improved. The water content is reduced, the maintenance operation range of the maintenance device is widened, conventional watering maintenance can be achieved, evaporation acceleration treatment after quick switching can be achieved, the water content of the road surface is reduced, the comprehensive use effect is good, the control effect of the maintenance device on road surface maintenance is greatly improved, and the use effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of highway maintenance, and in particular relates to a device for maintaining a water-stable base of a highway project. Background Art

[0002] The water-stable base in highway engineering refers to the cement-stabilized base, which can also be called cement-stabilized gravel layer. It refers to cement-stabilized soil formed by adding cement as a binder to gravel (or crushed stone) through paving, vibration, compaction and other working methods to obtain the mixture. The water-stable base has high strength in the initial stage, and the strength increases with the increase of service time, and it quickly forms a solid whole. It is a high-quality material in the construction of the road surface base of road engineering. For maintenance treatment, it is usually necessary to spray water regularly to avoid cracking and deformation.

[0003] The device for maintaining the water-stable base of highway engineering in the prior art adopts a transport vehicle equipped with a water storage tank during use, and cooperates with a spraying mechanism to spray water on the water-stable base. However, in actual use, in the later stage of maintenance, during the maintenance treatment of the water-stable base in the later stage of solidification, it is often necessary to strictly control the amount of maintenance watering. In the case of excessive watering, it is easy to affect the further shaping and stability of the water-stable base, and dehumidification operation is required. In addition, the current maintenance device has a single function and can only realize maintenance watering, and the use effect is not good. For the treatment of different situations, it is often necessary to replace the maintenance equipment, and the use effect is not good. Summary of the invention

[0004] The purpose of the present invention is to provide a device for maintaining water-stable base in highway engineering to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a device for maintaining a water-stable base of a highway engineering, comprising a vehicle body, an internal cavity is provided inside the vehicle body, a rotating assembly is rotatably mounted on the side of the vehicle body, a spray assembly and a cleaning assembly are fixedly provided on the outer surface of the rotating assembly, a conducting part is provided on the inner wall of the vehicle body, the outer end of the conducting part is located on the rotation path of the spray assembly, a composite output assembly is fixedly provided inside the internal cavity, and the output end of the composite output assembly is communicated with the inner end of the conducting part;

[0006] The rotating assembly includes a support column, a rotating shaft, a gear 1 and a power unit. The rotating shaft is fixedly connected to the end of the support column, the rotating shaft is rotatably sleeved on the side of the vehicle body, and one end extends into the internal cavity. The gear 1 is fixedly sleeved on the outer surface of the rotating shaft, and the power unit is fixed in the internal cavity and meshed with the gear 1.

[0007] Preferably, the power unit includes a control motor and gear 2, the output shaft of the control motor is fixedly sleeved with gear 2, and gear 2 is meshingly connected with gear 1.

[0008] Preferably, the composite output assembly includes a control valve, an outlet pipe, a liquid pump, a storage tank and an air pump, the storage tank is fixedly installed in the internal cavity, the liquid pump and the air pump are both fixedly installed in the internal cavity, one end of the outlet pipe is fixed in the inner wall of the vehicle body and communicated with the conducting part, the other end of the outlet pipe is fixedly connected to the control valve, the two inlet ends of the control valve are respectively communicated with the liquid outlet of the liquid pump and the air outlet of the air pump, and the inlet end of the liquid pump is fixed and communicated with the storage tank.

[0009] Preferably, the spray assembly comprises a spray sleeve, a spray hole, a side tube and an elastic pad, the spray sleeve is fixedly connected to the outer surface of the support column, the spray hole is opened at the bottom of the spray sleeve, the spray sleeve is hollow inside, one end of the side tube is fixedly connected to the end of the spray sleeve and communicated with the inside of the spray sleeve,

[0010] Preferably, the other end of the side tube is fixedly connected to the elastic pad, the elastic pad is in contact with the vehicle body, and a middle hole is provided in the middle of the elastic pad and is connected to the side tube.

[0011] Preferably, the conducting portion includes a through hole, an annular cavity and a heating tube, the through hole is opened in the inner wall of the vehicle body and is connected to the internal cavity, the annular cavity is opened in the inner wall of the vehicle body, the annular cavity is located on the outside of the through hole and is connected to the through hole, the heating tube is fixedly installed in the annular cavity, and the inner end of the through hole is fixedly connected to and connected to the outlet tube.

[0012] Preferably, the cleaning assembly includes an electric push rod, a mounting frame, a cleaning part, a sleeve rod and a sleeve, the electric push rod is fixedly mounted on the outer surface of the support column, the mounting frame is fixedly connected to the movable end of the electric push rod, the cleaning part is rotatably mounted in the mounting frame, one end of the mounting frame is provided with a rotating mechanism, the rotating mechanism controls the rotation of the cleaning part, the sleeve rod is fixedly connected to the mounting frame, the sleeve is fixedly connected to the outer surface of the support column, and the sleeve rod is movably sleeved in the sleeve.

[0013] Preferably, the cleaning part encapsulates a rotating support shaft and a cleaning brush connected around the outer surface of the rotating support shaft.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention utilizes a spray component, a composite output component, and a conducting part, and can realize repeated use of the spray component in the actual maintenance process. On the one hand, the spray component is used to spray water toward the road surface for maintenance. On the other hand, hot air blowing is realized when the water surface needs to be reduced. In conjunction with the movement of the vehicle body, the top of the road surface is accelerated to evaporate, the water content is reduced, and the maintenance operation range of the maintenance device is improved. Conventional watering maintenance can be realized, and accelerated evaporation treatment after quick switching can be realized to reduce the water content of the road surface. The comprehensive use effect is good, which greatly improves the control effect of the maintenance device on road maintenance and has a good use effect.

[0016] 2. The present invention utilizes a spray assembly, a composite output assembly and a conducting part. To meet the winter maintenance requirements and the freezing damage such as winter road icing, the spray assembly and the conducting part can be used again to achieve hot air blowing on the top of the road surface. The hot air blowing is used to achieve heating treatment, reduce winter freezing damage, further expand the maintenance construction scope of the water-stable base layer, and achieve good maintenance effects.

[0017] 3. The present invention realizes the position switching of the spraying component and the cleaning component by utilizing the rotation control of the rotating component, and cooperates with the rotating cleaning part and the movable mounting frame in the cleaning component. When the cleaning component is moved downward, it moves and contacts with the top of the water-stable base layer according to actual conditions, and realizes rotation cleaning and grinding for abnormal protrusions to maintain the flatness of the top of the water-stable base layer, further improving the maintenance effect, being easy to use, and realizing multi-functional maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0020] Figure 3 is a cross-sectional schematic diagram of a vehicle body of the present invention;

[0021] Figure 4 is a schematic diagram of a rotating assembly of the present invention;

[0022] Figure 5 is a schematic diagram of a spray assembly of the present invention;

[0023] Figure 6 is a schematic diagram of a cleaning assembly of the present invention;

[0024] Figure 7 is a schematic diagram of a composite output assembly of the present invention;

[0025] In the figure: 1. body; 2. internal cavity; 3. rotating assembly; 31. support column; 32. rotating shaft; 33. gear 1; 34. power unit; 4. compound output assembly; 41. control valve; 42. outlet pipe; 43. liquid pump; 44. storage tank; 45. air pump; 5. spray assembly; 51. spray sleeve; 52. spray hole; 53. side pipe; 54. elastic pad; 6. conduction part; 61. through hole; 62. annular cavity; 63. heating tube; 7. cleaning assembly; 71. electric push rod; 72. mounting frame; 73. cleaning unit; 74. sleeve rod; 75. sleeve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, an embodiment of the present invention provides a device for maintaining a water-stable base of a highway engineering, comprising a vehicle body 1, an internal cavity 2 is provided inside the vehicle body 1, a rotating assembly 3 is rotatably mounted on the side of the vehicle body 1, a spray assembly 5 and a cleaning assembly 7 are fixedly provided on the outer surface of the rotating assembly 3, a conducting portion 6 is provided on the inner wall of the vehicle body 1, an outer end of the conducting portion 6 is located on the rotation path of the spray assembly 5, a composite output assembly 4 is fixedly provided inside the internal cavity 2, and an output end of the composite output assembly 4 is communicated with an inner end of the conducting portion 6;

[0028] The rotating assembly 3 includes a support column 31, a rotating shaft 32, a gear 1 33 and a power unit 34. The rotating shaft 32 is fixedly connected to the end of the support column 31. The rotating shaft 32 is rotatably sleeved on the side of the vehicle body 1, and one end extends into the internal cavity 2. The gear 1 33 is fixedly sleeved on the outer surface of the rotating shaft 32. The power unit 34 is fixed in the internal cavity 2 and meshed with the gear 1 33.

[0029] Embodiment 1: When performing maintenance work, the vehicle body 1 is started and the spray assembly 5 is located at the top of the road surface to be maintained. The power unit 34 in the rotating assembly 3 is started. The power unit 34 drives the meshing gear 1 33 to rotate, so that the spray assembly 5 rotates and the spray hole 52 faces downward. The liquid pump 43 in the composite output assembly 4 is started, and the control valve 41 is actuated so that the outlet pipe 42 is connected to the liquid pump 43, so that the liquid pump 43 sucks out the liquid in the storage tank 44 and inputs it into the conduction part 6 through the control valve 41 and the outlet pipe 42, so that the maintenance water is input into the side pipe 53 through the elastic pad 54 in the spray assembly 5, and the water flows into The liquid is pumped into the ejection sleeve 51, so that the water flows downwardly along the ejection hole 52, and the road surface is watered and maintained as the vehicle body 1 moves. When it is necessary to reduce the water content at the top of the water-stable base layer, the liquid pump 43 is closed, and the air pump 45 is started, so that the control valve 41 is actuated, and the exhaust air of the air pump 45 is input into the outlet pipe 42, and then input into the conducting part 6. The heating pipe 63 in the conducting part 6 is started simultaneously, so that hot air is continuously blown to the top of the road surface, accelerating the evaporation of the water at the top and reducing the water content. When thawing treatment is required in winter, the heating pipe 63 is also started and pressurized air is input. As the vehicle body 1 moves, hot air is blown on the road surface to complete the thawing and maintenance treatment.

[0030] Firstly, by utilizing the spray component 5, the composite output component 4 and the conducting part 6, the spray component 5 can be repeatedly utilized in the actual maintenance process. On the one hand, the spray component 5 is utilized to spray water toward the road surface for maintenance. On the other hand, hot air blowing is implemented when the water surface needs to be reduced. In conjunction with the movement of the vehicle body 1, the evaporation of the top of the road surface is accelerated to reduce the water content, thereby increasing the maintenance operation range of the maintenance device. Conventional watering maintenance can be achieved, and accelerated evaporation processing can be achieved after quick switching to reduce the water content of the road surface. The comprehensive use effect is good, which greatly improves the control effect of the maintenance device on road maintenance and has a good use effect.

[0031] In addition, by utilizing the spray assembly 5, the composite output assembly 4, and the conducting part 6, in response to winter maintenance requirements and freezing damage such as winter road icing, the spray assembly 5 and the conducting part 6 can be utilized again to achieve hot air blowing on the top of the road surface, and heating treatment can be achieved by hot air blowing, thereby reducing winter freezing damage, further expanding the maintenance construction scope of the water-stable base layer, and achieving good maintenance effects.

[0032] Embodiment 2: When it is necessary to clean the abnormal protrusion on the top of the road surface, start the power unit 34 in the rotating assembly 3, so that the meshing gear 33 rotates, driving the rotating shaft 32 and the support column 31 to rotate, so that the spray assembly 5 rotates upward, and at the same time, the cleaning assembly 7 rotates to the bottom, and the electric push rod 71 is started, so that the mounting frame 72 and the cleaning unit 73 move downward and close to the road surface, and the vehicle body 1 is started and the corresponding rotating mechanism at the cleaning unit 73 is started at the same time to realize the rotation of the cleaning unit 73, and cooperate with the cleaning brush in the cleaning unit 73 to grind and clean the abnormal protrusions on the road surface to maintain the flatness of the road surface.

[0033] Firstly, by utilizing the rotation control of the rotating component 3, the position switching of the spraying component 5 and the cleaning component 7 is realized. In conjunction with the rotating cleaning part 73 in the cleaning component 7 and the movable mounting frame 72, when the cleaning component 7 is moved downward, it is moved and contacted with the top of the water-stable base layer according to actual conditions. For abnormal protrusions, rotation cleaning and grinding are realized to maintain the flatness of the top of the water-stable base layer, further improve the maintenance effect, facilitate use, and realize multifunctional maintenance.

[0034] The power unit 34 includes a control motor and a second gear. The output shaft of the control motor is fixedly sleeved with the second gear, and the second gear is meshedly connected with the first gear 33 .

[0035] By utilizing the power of the power unit 34 through rotation adjustment, the positions of the spray component 5 and the cleaning component 7 are switched to change different processes.

[0036] Among them, the composite output component 4 includes a control valve 41, an outlet pipe 42, a liquid pump 43, a storage tank 44 and an air pump 45. The storage tank 44 is fixedly installed in the internal cavity 2. The liquid pump 43 and the air pump 45 are both fixedly installed in the internal cavity 2. One end of the outlet pipe 42 is fixed in the inner wall of the vehicle body 1 and is connected to the conducting part 6. The other end of the outlet pipe 42 is fixedly connected to the control valve 41. The two inlet ends of the control valve 41 are respectively connected to the liquid outlet of the liquid pump 43 and the air outlet of the air pump 45. The inlet end of the liquid pump 43 is fixed and connected to the storage tank 44.

[0037] The composite output assembly 4 realizes the independent delivery of gas and liquid by utilizing the action of the control valve 41, realizes watering maintenance when supplying liquid, realizes accelerated drying when supplying gas, and realizes heating antifreeze treatment after heating.

[0038] Among them, the spray assembly 5 includes a spray sleeve 51, a spray hole 52, a side pipe 53 and an elastic pad 54. The spray sleeve 51 is fixedly connected to the outer surface of the support column 31, the spray hole 52 is opened at the bottom of the spray sleeve 51, the spray sleeve 51 is hollow inside, one end of the side pipe 53 is fixedly connected to the end of the spray sleeve 51 and is connected to the inside of the spray sleeve 51, the other end of the side pipe 53 is fixedly connected to the elastic pad 54, the elastic pad 54 is in contact with the vehicle body 1, and an intermediate hole is provided in the middle of the elastic pad 54 and is connected to the side pipe 53.

[0039] By utilizing the spray assembly 5 to realize water spraying and air jet treatment, the utilization rate of the equipment structure is improved, and the elastic contact of the elastic pad 54 improves the sealing performance, ensuring that the position can be switched while avoiding air leakage in the connected state.

[0040] Among them, the conducting part 6 includes a through hole 61, an annular cavity 62 and a heating tube 63. The through hole 61 is opened on the inner wall of the vehicle body 1 and is connected to the internal cavity 2. The annular cavity 62 is opened in the inner wall of the vehicle body 1. The annular cavity 62 is located on the outside of the through hole 61 and is connected to the through hole 61. The heating tube 63 is fixedly installed in the annular cavity 62. The inner end of the through hole 61 is fixedly connected and connected to the outlet tube 42.

[0041] By utilizing the conducting part 6 to realize the conduction of liquid and air flow, and cooperating with the heating tube 63 to realize heating treatment, heating can be performed on demand, thereby improving the controllability of maintenance.

[0042] Among them, the cleaning assembly 7 includes an electric push rod 71, a mounting frame 72, a cleaning part 73, a sleeve rod 74 and a sleeve 75. The electric push rod 71 is fixedly mounted on the outer surface of the support column 31, the mounting frame 72 is fixedly connected to the movable end of the electric push rod 71, the cleaning part 73 is rotatably mounted in the mounting frame 72, one end of the mounting frame 72 is provided with a rotating mechanism, the rotating mechanism controls the rotation of the cleaning part 73, the sleeve rod 74 is fixedly connected to the mounting frame 72, the sleeve 75 is fixedly connected to the outer surface of the support column 31, the sleeve rod 74 is movably sleeved in the sleeve 75, and the cleaning part 73 wraps the rotating support shaft and the cleaning brush connected around the outer surface of the rotating support shaft.

[0043] The cleaning component 7 performs local friction cleaning on the top of the water-stable base layer through rotational friction to ensure flatness. The sleeve 75 and the sleeve rod 74 provide matching movement stability and auxiliary limit support.

[0044] The working principle and use process of the present invention are as follows: when performing maintenance operations, the vehicle body 1 is started and the spray assembly 5 is located at the top of the road surface to be maintained, the power unit 34 in the rotating assembly 3 is started, and the power unit 34 drives the meshing gear 33 to rotate, so that the spray assembly 5 rotates and the spray hole 52 faces downward, the liquid pump 43 in the composite output assembly 4 is started, and the control valve 41 is actuated, so that the outlet pipe 42 is connected to the liquid pump 43, so that the liquid pump 43 sucks out the liquid in the storage tank 44 and inputs it into the conduction part 6 through the control valve 41 and the outlet pipe 42, so that the maintenance water is input into the side pipe 53 through the elastic pad 54 in the spray assembly 5, and the water flow enters the spray sleeve 51, so that the water flow is sprayed downward along the spray hole 52, and the road surface sprinkling maintenance is completed as the vehicle body 1 moves; when it is necessary to reduce the water content on the top of the water-stable base layer, the liquid pump 43 is closed, and the air pump 45 is started, so that the control valve 41 is actuated, and the air pump 45 is connected. The exhaust air is input into the outlet pipe 42 and then into the conducting part 6, and the heating pipe 63 in the conducting part 6 is started synchronously, so that the hot air is continuously blown to the top of the road surface, accelerating the evaporation of the water on the top and reducing the water content; when thawing treatment is required in winter, the heating pipe 63 is also started and the pressurized air is input, and the hot air is blown to the road surface as the vehicle body 1 moves to complete the thawing and maintenance treatment; when the abnormal protrusion on the top of the road surface needs to be cleaned, the power part 34 in the rotating assembly 3 is started, so that the meshing gear 1 33 rotates, driving the rotating shaft 32 and the supporting column 31 to rotate, so that the ejection assembly 5 rotates upward, and at the same time the cleaning assembly 7 rotates to the bottom, the electric push rod 71 is started, so that the mounting frame 72 and the cleaning part 73 move downward and close to the road surface, the vehicle body 1 is started and the corresponding rotating mechanism at the cleaning part 73 is started at the same time, so that the cleaning part 73 rotates, and the cleaning brush in the cleaning part 73 is cooperated to grind and clean the abnormal protrusions on the road surface to maintain the flatness of the road surface.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for maintaining a water-stable base of a highway project, comprising a vehicle body (1), characterized in that: An internal cavity (2) is provided inside the vehicle body (1), a rotating assembly (3) is rotatably mounted on the side of the vehicle body (1), a spray assembly (5) and a cleaning assembly (7) are fixedly mounted on the outer surface of the rotating assembly (3), a conducting portion (6) is provided on the inner wall of the vehicle body (1), the outer end of the conducting portion (6) is located on the rotation path of the spray assembly (5), a composite output assembly (4) is fixedly mounted inside the internal cavity (2), and the output end of the composite output assembly (4) is connected to the inner end of the conducting portion (6); The rotating assembly (3) comprises a support column (31), a rotating shaft (32), a gear one (33) and a power unit (34); the rotating shaft (32) is fixedly connected to the end of the supporting column (31); the rotating shaft (32) is rotatably sleeved on the side of the vehicle body (1), and one end extends into the internal cavity (2); the gear one (33) is fixedly sleeved on the outer surface of the rotating shaft (32); and the power unit (34) is fixed in the internal cavity (2) and meshed with the gear one (33).

2. The device for maintaining water-stable base of highway engineering according to claim 1, characterized in that: The power unit (34) comprises a control motor and a second gear, wherein the output shaft of the control motor is fixedly sleeved with the second gear, and the second gear is meshedly connected with the first gear (33).

3. The device for maintaining water-stable base of highway engineering according to claim 2, characterized in that: The composite output assembly (4) comprises a control valve (41), an outlet pipe (42), a liquid pump (43), a storage tank (44) and an air pump (45); the storage tank (44) is fixedly installed in the internal cavity (2); the liquid pump (43) and the air pump (45) are both fixedly installed in the internal cavity (2); one end of the outlet pipe (42) is fixed in the inner wall of the vehicle body (1) and communicates with the conduction portion (6); the other end of the outlet pipe (42) is fixedly connected to the control valve (41); the two inlet ends of the control valve (41) are respectively communicated with the liquid outlet of the liquid pump (43) and the air outlet of the air pump (45); the inlet end of the liquid pump (43) is fixed to and communicates with the storage tank (44).

4. The device for maintaining water-stable base of highway engineering according to claim 3 is characterized by: The spray assembly (5) comprises a spray sleeve (51), a spray hole (52), a side tube (53) and an elastic pad (54); the spray sleeve (51) is fixedly connected to the outer surface of the support column (31); the spray hole (52) is provided at the bottom of the spray sleeve (51); the interior of the spray sleeve (51) is hollow; one end of the side tube (53) is fixedly connected to the end of the spray sleeve (51) and communicates with the interior of the spray sleeve (51).

5. The device for maintaining water-stable base of highway engineering according to claim 4, characterized in that: The other end of the side tube (53) is fixedly connected to an elastic pad (54), the elastic pad (54) is in contact with the vehicle body (1), and a middle hole is provided in the middle of the elastic pad (54) and is in communication with the side tube (53).

6. The device for maintaining water-stable base of highway engineering according to claim 5, characterized in that: The conducting portion (6) comprises a through hole (61), an annular cavity (62) and a heating tube (63); the through hole (61) is provided on the inner wall of the vehicle body (1) and is in communication with the internal cavity (2); the annular cavity (62) is provided in the inner wall of the vehicle body (1); the annular cavity (62) is located outside the through hole (61) and is in communication with the through hole (61); the heating tube (63) is fixedly installed in the annular cavity (62); and the inner end of the through hole (61) is fixedly connected to and in communication with the outlet tube (42).

7. The device for maintaining water-stable base of highway engineering according to claim 6, characterized in that: The cleaning assembly (7) comprises an electric push rod (71), a mounting frame (72), a cleaning portion (73), a sleeve rod (74) and a sleeve tube (75); the electric push rod (71) is fixedly mounted on the outer surface of the support column (31); the mounting frame (72) is fixedly connected to the movable end of the electric push rod (71); the cleaning portion (73) is rotatably mounted in the mounting frame (72); a rotating mechanism is provided at one end of the mounting frame (72); the rotating mechanism controls the rotation of the cleaning portion (73); the sleeve rod (74) is fixedly connected to the mounting frame (72); the sleeve tube (75) is fixedly connected to the outer surface of the support column (31); and the sleeve rod (74) is movably sleeved in the sleeve tube (75).

8. The device for maintaining water-stable base of highway engineering according to claim 7, characterized in that: The cleaning part (73) encapsulates the rotating support shaft and surrounds a cleaning brush connected to the outer surface of the rotating support shaft.

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