A pavement maintenance spraying device and system based on hydraulic drive

Abstract

The present invention discloses a pavement maintenance spraying device based on hydraulic drive. The device includes an installation platform that can be fixed on the middle isolation guardrail of a highway bridge, a nozzle, a liquid outlet channel, and a turbine and a reciprocating swing structure fixed on the installation platform, which are provided with a liquid inlet and a liquid outlet; the liquid inlet is used for introducing pressurized maintenance liquid so that the turbine converts the liquid kinetic energy into rotational mechanical energy; the liquid outlet channel connects the liquid outlet with the nozzle; the rotational output shaft of the turbine is drivingly connected to the reciprocating swing structure, and the reciprocating swing structure is connected to the nozzle. The reciprocating swing structure drives the nozzle to reciprocate 180° under the drive of the turbine; a system is also disclosed. In this system, a liquid supply branch is respectively arranged at the liquid inlet of each device, and each liquid supply branch connects the corresponding device with the liquid supply main road; a pumping station is arranged on the liquid supply main road for pumping the maintenance liquid from the liquid supply source along the liquid supply main road and the liquid supply branch to the device, and the spraying of the maintenance liquid can be remotely controlled by controlling the start and stop of the pumping station.

Description

Technical Field

[0001] The present invention relates to the field of road traffic protection devices, and particularly to a pavement maintenance spraying device and system based on hydraulic drive. Background Art

[0002] The main difficulties in the cleaning and maintenance of highway pavements are that the highway mileage is extremely long and far from towns. Manual driving of cleaning vehicles for maintenance has low efficiency and high costs. In addition, the speed of vehicles driving on highways is high, and the risk coefficient of cleaning and maintenance is high. Taking snow removal and ice melting in winter and four-season cleaning as examples. In winter rain and snow weather, it is extremely easy to cause snow and ice on highway pavements, seriously affecting road transportation and threatening the safety of vehicles and personnel. Currently, most snow removal and ice melting operations are carried out by manually driving snow removal vehicles to clean along the way. The operation intensity is extremely high, with low efficiency and high costs. For highway pavement cleaning, high-pressure water sweeping vehicles are mostly used to flush road debris out of the pavement, and also face problems such as long operation distances, high intensities, low efficiencies, and high costs.

[0003] In view of the above problems, the applicant believes that if a high-pressure spraying device can be fixed on the highway and remote control can be achieved, manual operations can be greatly reduced and maintenance efficiency can be improved. Therefore, the present invention proposes a pavement maintenance high-pressure spraying device based on hydraulic drive, which can be fixed on the median isolation guardrail of the highway, and remotely controlled by an industrial network to achieve autonomous and controllable pavement maintenance spraying operations. Summary of the Invention

[0004] Object of the Invention: The technical problem to be solved by the present invention is to provide a pavement maintenance spraying device based on hydraulic drive for existing snow removal devices with problems such as high manual operation intensity, long operation distance, high operation risk coefficient, high operation cost, low efficiency, and unstable maintenance cycle. The device is fixed on the median isolation guardrail of the highway bridge to achieve remote control of the spraying of maintenance liquid.

[0005] To solve the above technical problems, the present invention discloses a pavement maintenance spraying device based on hydraulic drive. The device includes an installation platform, a turbine provided with a liquid inlet and a liquid outlet, a reciprocating swing structure, a nozzle, and a liquid outlet channel. The turbine and the reciprocating swing structure are respectively fixedly installed on the installation platform. The liquid inlet is used to introduce pressurized maintenance liquid so that the turbine converts the kinetic energy of the maintenance liquid into rotational mechanical energy. The liquid outlet channel connects the liquid outlet and the nozzle. The rotational output shaft of the turbine is connected to the reciprocating swing structure in a transmission manner, and the reciprocating swing structure is connected to the nozzle to drive the nozzle to reciprocate under the drive of the turbine.

[0006] During use, the installation platform of the device is fixed on the median isolation guardrail of the highway bridge.

[0007] In the present invention, the reciprocating swing structure comprises a one-way rotating shaft connected to the rotating output shaft of the impeller, a reciprocating rotating shaft, a first incomplete gear, a second incomplete gear, a first complete gear, a second complete gear and an idler, wherein the first incomplete gear and the second incomplete gear are coaxially fixedly connected to the one-way rotating shaft, and the gear teeth of the first incomplete gear and the gear teeth of the second incomplete gear are staggered by 180°. The first complete gear and the second complete gear are coaxially fixedly connected to the reciprocating rotating shaft. The first complete gear meshes with the first incomplete gear. The idler is located between the second incomplete gear and the second complete gear, and the second incomplete gear and the second complete gear are respectively meshed with the idler. The nozzle is fixedly connected to the reciprocating rotating shaft.

[0008] In the present invention, the device comprises a planetary reducer, and the rotating output shaft of the impeller is transmission-connected with the unidirectional rotating shaft via the planetary reducer.

[0009] In the present invention, the impeller includes a housing and a blade fan, a pump chamber is provided in the housing, the pressurized maintenance liquid flows from the liquid inlet through the pump chamber, and then flows out from the liquid outlet; the rotary output shaft is rotatably mounted in the pump chamber, the blade fan is located in the pump chamber and is fixedly connected to the rotary output shaft, one end of the rotary output shaft extends out of the housing to be transmission-connected to the reciprocating swing structure. A mechanical sealing device is provided between the extended end of the rotary output shaft and the housing.

[0010] In the present invention, the mechanical sealing device includes an angular contact ball bearing, a dynamic ring, a compression spring and a static ring. The protruding end of the rotating output shaft is provided with an angular contact ball bearing, and the protruding end of the rotating output shaft is supported on the housing through the angular contact ball bearing; the static ring is installed on the rotating output shaft and is arranged opposite to the blade fan; the dynamic ring is installed on the rotating output shaft and is located on the side of the static ring away from the blade fan; a compression spring is installed between the angular contact ball bearing and the dynamic ring, one end of the compression spring is pressed against the static ring, and the other end is pressed against the angular contact ball bearing; when the pressurized maintenance liquid drives the blade fan and the rotating output shaft to rotate, the axial force generated by the rotating output shaft will push the dynamic ring and the compression spring of the mechanical sealing device, and the angular contact ball bearing drives the dynamic ring to compress the static ring under the action of the compression spring to achieve sealing.

[0011] In the present invention, the device includes a hollow pipe, and the liquid outlet is connected to the hollow pipe. The reciprocating shaft is a hollow shaft, one end of which is connected to the nozzle, and the other end is rotatably connected to the end of the hollow pipe away from the liquid inlet around the axis of the reciprocating shaft, and the connection between the two is sealed. The inner wall of the hollow pipe and the inner wall of the reciprocating shaft form the liquid outlet channel.

[0012] In the present invention, the device includes a liquid inlet pipeline, and the liquid inlet pipeline communicates an external pressure liquid source with the liquid inlet. In the present invention, the device includes a liquid inlet flowmeter and a liquid outlet flowmeter. The liquid inlet flowmeter is installed in the liquid inlet pipeline, and the liquid outlet flowmeter is installed in the liquid outlet channel.

[0013] The present invention also provides a pavement maintenance spraying system based on hydraulic drive, which can remotely spray maintenance liquid. The system includes a maintenance liquid supply source, a main supply path, a pump station, and a plurality of the above-mentioned pavement maintenance spraying devices based on hydraulic drive arranged at intervals along the highway. Each device is fixed to the middle isolation guardrail of the highway bridge. A liquid supply branch is respectively arranged at the liquid inlet of each device, and each liquid supply branch communicates the corresponding device with the main supply path. The liquid inlet end of the main supply path is communicated with the maintenance liquid supply source. A pump station is arranged on the main supply path for pumping the maintenance liquid from the maintenance liquid supply source along the main supply path and the liquid supply branch to the corresponding device, so as to realize remote spraying of the maintenance liquid.

[0014] The system of this embodiment further includes an industrial network control center, an electromagnetic overflow valve, and a throttle valve. The electromagnetic overflow valve and the throttle valve are respectively arranged on each liquid supply branch. Each device is fixedly installed with a device-end central processor and a device-end wireless signal transmitter. The liquid inlet flowmeter and the liquid outlet flowmeter are both bidirectionally electrically connected to the device-end central processor through wires. The input end of the device-end wireless signal transmitter is electrically connected to the output end of the corresponding device-end central processor. The pump station includes a pump station control device and a pump station-end communication component. The pump station control device includes a pump station-end central processor and a pump station-end execution unit. The pump station-end communication component is electrically connected to the pump station-end central processor of the pump station control device. The pump station-end central processor controls the start and stop of the pump station through the pump station-end execution unit according to the data obtained by the pump-end communication component. The input end of the industrial network control center is signal-connected to a control center communication component. The output signals of the device-end wireless signal transmitter and the pump station-end communication component are respectively connected to the input end of the control center communication component. The input ends of the pump station-end communication component and the electromagnetic overflow valve and the throttle valve are respectively connected to the output signal of the control center communication component.

[0015] In the industrial network control center of the present invention, the purpose of remotely controlling equipment is achieved. By means of the cameras on the highway to feedback the real situation of the road, the pumping stations and valve switches are turned on to enable the equipment to carry out spraying operations. During operation, the data collected by the flow meters on each piece of equipment are fed back to the industrial network control center. Then, combined with the real-time images of the cameras on the highway, the pumping stations, electromagnetic overflow valves and throttle valves are controlled to adjust the solvent flow rate of the equipment, so as to accurately and remotely control the spraying of the equipment. With the use of the industrial network, the working conditions of the maintenance equipment can be better monitored, the maintenance cycle is stable, remote control can be achieved after using the industrial network, the use of manpower can be reduced, the working distance can be farther, and the operation risk coefficient can be reduced. In this application, how to perform remote control is not the core inventive point of this application, so it will not be described in detail.

[0016] Advantageous effects:

[0017] (1) The power source of the device of the present invention is hydraulic drive. The turbine partially converts the kinetic energy of the maintenance liquid for spraying into rotational mechanical energy. The reciprocating swing structure drives the nozzle to reciprocate under the drive of the turbine, without the need for electric power and electrical components for drive, with high reliability and convenient maintenance.

[0018] (2) The reciprocating swing structure includes two pairs of incomplete gear mechanisms. Through the intermittent meshing of the two pairs of incomplete gear mechanisms, the steering of the nozzle can reach 180° reciprocating steering, making the effect of spraying maintenance liquids such as snow melting agents and cleaning agents better.

[0019] (3) The movement of the device of the present invention is purely mechanically controlled, without electrical control, with low cost, suitable for harsh outdoor environments, and long service life; when a failure occurs, the device can be directly replaced, which makes maintenance more convenient and the interchangeability between devices stronger.

[0020] (5) The system of the present invention is provided with a pumping station on the main liquid supply path for pumping the maintenance liquid from the maintenance liquid supply source along the main liquid supply path and the branch liquid supply path to the corresponding device. By controlling the start and stop of the pumping station, the spraying of the maintenance liquid can be remotely controlled. Compared with the prior art of manual operation, the long-distance control of this system has the advantages of high maintenance efficiency, low operation intensity and low cost.

[0021] (6) With the aid of the industrial network, an electromagnetic overflow valve and a throttle valve are configured for each device of the present invention to realize the industrial network to separately control the flow pressure of the maintenance liquid of each device, so as to achieve accurate dosing according to requirements, thereby saving consumption. Description of the drawings

[0022] The following further specifically describes the present invention in conjunction with the drawings and specific embodiments, and the above and / or other advantages of the present invention will become clearer.

[0023] Figure 1Schematic three - dimensional structure diagram of a pavement maintenance spraying device based on hydraulic drive according to an embodiment of the present invention;

[0024] Figure 2 is Figure 1 Schematic three - dimensional structure diagram of the pavement maintenance spraying device shown with the upper box removed;

[0025] Figure 3 is Figure 2 Top view of the pavement maintenance spraying device shown;

[0026] Figure 4 is along Figure 3 Cross - sectional view taken along line A - A in

[0027] Figure 5 is Figure 2 Partial enlarged view of area B in

[0028] Figure 6 Schematic composition diagram of a pavement maintenance spraying system based on hydraulic drive according to an embodiment of the present invention.

[0029] Reference numerals are as follows: device 100, installation platform 110, turbine 120, liquid inlet 121, liquid outlet 122, rotating output shaft 123, housing 124, upper box 1241, lower box 1242, blade fan 125, moving ring 126, static ring 127, angular contact ball bearing 129, planetary reducer 130, one - way rotating shaft 141, reciprocating rotating shaft 142, first incomplete gear 143, second incomplete gear 144, first complete gear 145, idler gear 146, second complete gear 147, nozzle 150, electrically adjustable nozzle 151, hollow pipe 161, liquid - out flowmeter 162, liquid supply pipeline 171, liquid - in flowmeter 172, industrial network control center 200, pumping station 300, electromagnetic overflow valve and throttle valve 400. Detailed implementation manners

[0030] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] Figure 1 Internal structure diagram of a pavement maintenance spraying device based on hydraulic drive according to an embodiment of the present invention. Figure 2 is Figure 1 Schematic three - dimensional structure diagram of the pavement maintenance spraying device shown with the upper box removed. Figure 3 is Figure 2 Top view of the pavement maintenance spraying device shown. Figure 4 is along Figure 3 Cross - sectional view taken along line A - A in

[0033] See also Figures 1 to 4 , a road maintenance spraying device based on hydraulic drive in this embodiment, the device 100 includes a mounting platform 110, an impeller 120 provided with a liquid inlet 121 and a liquid outlet 122, a reciprocating swing structure, a nozzle 150 and a liquid outlet channel. The mounting platform 110 of the device is configured to be fixed on the intermediate isolation guardrail of the highway bridge. The impeller 120 and the reciprocating swing structure are respectively fixedly mounted above the mounting platform 110. The liquid inlet 121 is used to introduce a maintenance liquid with pressure so that the impeller 120 converts the kinetic energy of the maintenance liquid into rotational mechanical energy. The liquid outlet channel connects the liquid outlet 122 and the nozzle 150. The rotating output shaft 123 of the impeller 120 is connected to the reciprocating swing structure in a transmission manner, and the reciprocating swing structure is connected to the nozzle 150, so that the reciprocating swing structure drives the nozzle 150 to swing back and forth under the drive of the impeller 120.

[0034] The maintenance liquid in the present application can be a deicing agent or a cleaning agent.

[0035] For details, see Figure 1 and Figure 2 The reciprocating swing structure includes a one-way rotating shaft 141, a reciprocating rotating shaft 142, a first incomplete gear 143, a second incomplete gear 144, a first complete gear 145, a second complete gear 147 and an idler 146, wherein the first incomplete gear 143 and the second incomplete gear 144 are coaxially fixedly connected to the one-way rotating shaft 141, and the gear teeth of the first incomplete gear 143 and the gear teeth of the second incomplete gear 144 are staggered by 180°. The first complete gear 145 and the second complete gear 147 are coaxially fixedly connected to the reciprocating rotating shaft 142. The first complete gear 145 meshes with the first incomplete gear 143. The idler 146 is located between the second incomplete gear 144 and the second complete gear 147, and the second incomplete gear 144 and the second complete gear 147 are respectively meshed with the idler 146. The nozzle 150 is fixedly connected to the reciprocating rotating shaft 142.

[0036] When the rotating output shaft 123 of the impeller 120 rotates, the unidirectional rotating shaft 141 rotates to drive the first incomplete gear 143 to rotate unidirectionally. The two pairs of incomplete gear mechanisms are intermittently meshed and transmitted to realize the reciprocating rotating shaft 142 to reciprocate around its axis. Specifically, when the gear teeth of the first incomplete gear 143 are meshed with the first complete gear 145, the second incomplete gear 144 is in a disengaged state from the idler gear 146, and the first complete gear 145 drives the reciprocating rotating shaft 142 and the second complete gear 147 to rotate around the axis, and the nozzle 150 rotates 180° to spray. When the first incomplete gear 143 enters the smooth surface, the toothless part of the first incomplete gear 143 is disengaged from the gear teeth of the first complete gear 145, and at this time, the gear teeth of the second incomplete gear 144 are meshed with the idler gear 146. By installing an idler gear 146 between the second incomplete gear 144 and the second complete gear 147, the direction of the second complete gear 147 is adjusted to be opposite to the direction of the second complete gear 147 when the first incomplete gear 143 and the first complete gear 145 are engaged. The second complete gear 147 drives the reciprocating shaft 142 to rotate in the opposite direction around the axis, and the spray head 150 also rotates 180° in the opposite direction, thereby achieving the purpose of reciprocating spraying.

[0037] The rotary output shaft 123 of the impeller 120 of this embodiment is a stepped shaft.

[0038] See also Figure 5 The nozzle 150 has an electrically adjustable nozzle 151 .

[0039] The electrically adjustable nozzle 151 of this embodiment is adjusted to a mist spray nozzle in winter, so that the spraying of the snow melting agent is more uniform. During the cleaning operation, the nozzle is adjusted to a concentrated spray nozzle, the water pressure is stronger, the spraying distance is farther, and the cleaning effect is stronger.

[0040] See also Figure 2 The device 100 includes a planetary reducer 130, and the rotating output shaft 123 of the impeller 120 is connected to the one-way rotating shaft 141 through the planetary reducer 130. Specifically, the rotating output shaft 123 of the impeller 120 is connected to the input end of the planetary reducer 130 through a coupling.

[0041] The planetary reducer 130 will reduce the rotation speed and increase the torque, reduce the axial force generated by the impeller, and transmit it to the unidirectional rotating shaft 141 .

[0042] See also Figure 3 and Figure 4, the turbine 120 includes a housing 124 and a fan 125. A pump chamber is provided inside the housing 124. The pressurized curing liquid flows through the pump chamber from the liquid inlet 121 and then flows out from the liquid outlet 122. The rotating output shaft 123 is rotatably installed in the pump chamber. The fan 125 is located in the pump chamber and is fixedly connected to the rotating output shaft 123. One end of the rotating output shaft 123 extends outside the housing 124 to be drivingly connected to the reciprocating swing structure. A mechanical seal device is provided between the extending end of the rotating output shaft 123 and the housing 124.

[0043] When the liquid inlet 121 feeds the pressurized curing liquid into the pump chamber, the pressurized curing liquid drives the fan 125 and the rotating output shaft 123 to rotate. Thus, the turbine converts the kinetic energy of the curing liquid into rotational mechanical energy.

[0044] See Figure 3 , the mechanical seal device includes an angular contact ball bearing 129, a moving ring 126, a compression spring, and a stationary ring 127. The extending end of the rotating output shaft 123 is provided with the angular contact ball bearing 129. The extending end of the rotating output shaft 123 is supported on the housing 124 through the angular contact ball bearing 129. The stationary ring 127 is installed on the rotating output shaft 123 and is disposed opposite to the fan 125. The moving ring 126 is installed on the rotating output shaft 123 and is located on the side of the stationary ring 127 away from the fan 125. A compression spring is installed between the angular contact ball bearing 129 and the moving ring 126. One end of the compression spring abuts against the stationary ring 127, and the other end abuts against the angular contact ball bearing 129. When the pressurized curing liquid drives the fan 125 and the rotating output shaft 123 to rotate, the axial force generated by the rotating output shaft 123 will push the moving ring 126 and the compression spring of the mechanical seal device. The angular contact ball bearing 129 drives the moving ring 126 to press against the stationary ring 127 under the action of the compression spring to achieve sealing.

[0045] The other end of the rotating output shaft 123 opposite to its extending end is supported on the housing 124 through another independent angular contact ball bearing, so that the rotating output shaft 123 is rotatably connected in the pump chamber.

[0046] The housing 124 of the turbine 120 in this embodiment includes an upper box body 1241 and a lower box body 1242. The upper box body 1241 and the lower box body 1242 are covered and connected together to form the housing 124. To facilitate showing the internal structure of the turbine 120 in Figure 2 , the upper box body is not shown in Figure 2 . The lower box body 1242 is fixedly connected to the installation platform 110, so as to fix the turbine 120 above the installation platform 110.

[0047] The mechanical seal device of the present invention can adopt, for example, the mechanical seal device described and shown in Gu Yongquan. Practical Technology of Mechanical Seals [M]. China Machine Press, 2001.

[0048] See Figure 1 , the device of this embodiment includes a hollow pipe 161, and a hollow pipe 161 is connected to the liquid outlet 122. The reciprocating rotating shaft 142 is a hollow rotating shaft. One end of the reciprocating rotating shaft 142 is connected to the nozzle 150, and the other end is rotatably connected to the end of the hollow pipe 161 away from the liquid inlet 121 around the axis of the reciprocating rotating shaft 142 and the connection part between the two is sealed. The inner wall of the hollow pipe 161 and the inner wall of the reciprocating rotating shaft 142 form a liquid outlet channel.

[0049] The device of this embodiment includes a liquid inlet pipe, and the liquid inlet pipe communicates with an external pressure liquid source and the liquid inlet 121.

[0050] The device of this embodiment includes a liquid inlet flowmeter 172 and a liquid outlet flowmeter 162. The liquid inlet flowmeter 172 is installed in the liquid inlet pipe, and the liquid outlet flowmeter 162 is installed in the liquid outlet channel. Specifically, see Figure 1 , the liquid outlet flowmeter 162 is located at the connection part between the reciprocating rotating shaft 142 and the hollow pipe 161.

[0051] In this example, a liquid inlet flowmeter 172 is installed in the liquid inlet pipe of the device, so that we can better detect the incoming specific flow rate. A liquid outlet flowmeter 162 is also installed at the pipe and the movable pipe joint 2-5, and the outflow of the solvent can be detected. In addition to monitoring the magnitude of the flow rate, the flowmeter can monitor whether the device leaks according to the flow rate difference between the liquid inlet 121 and the pipe joint.

[0052] The specific installation and implementation steps of the device 100 are as follows:

[0053] 1. The lower box body 1242 of the turbine 120 is installed on the installation platform 110 with studs. The blade fan 125, angular contact ball bearings and mechanical seal device are sequentially installed on the stepped shaft, and then the shaft body of the stepped shaft is placed into the lower box body 1242 of the turbine 120. The upper box body 1241 of the turbine 120 is covered on the lower box body 1242 of the turbine 120 and the two are fixed by bolts to form the housing 124 of the turbine 120, and the holes at both ends are also covered with end covers;

[0054] 2. The rotary output shaft 123 is connected to the input end of the planetary reducer 130 by a coupling, and the planetary reducer 130 is fixed on the installation platform 110 by relying on the reducer base;

[0055] 3. Another coupling is used to connect the output end of the planetary reducer 130 to the one-way rotating shaft 141 in the reciprocating swing structure. The one-way rotating shaft 141 is connected to the first incomplete gear 143 by a key, and the first incomplete gear 143 meshes with the first complete gear 2-11;

[0056] 4. The second incomplete gear 144 and the first incomplete gear 143 are installed 180° out of phase on the one-way rotating shaft 141;

[0057] 5. The second incomplete gear 144 is connected to the second complete gear 2-13 through an idler gear 146. The idler gear 146 is fixed to the mounting platform 110 by a shaft;

[0058] 6. The outer wall of the hollow reciprocating rotating shaft 142 is fixedly connected to the mating hole of the first complete gear 145 and the mating hole of the second complete gear 2-13 through interference fit;

[0059] 7. The liquid inlet pipe is installed at the liquid inlet 121, and a liquid inlet flowmeter 172 is installed in the liquid inlet pipe at the same time; between the liquid outlet 122 of the turbine 120 and the nozzle 150 is connected through a movable pipe joint; specifically, one end of the reciprocating rotating shaft 142 is connected to the nozzle 150, and the other end is rotatably connected to one end of the hollow pipe 161 far from the liquid inlet 121 around the axis of the reciprocating rotating shaft 142, so that the reciprocating rotating shaft 142 and the hollow reciprocating rotating shaft 142 form a movable pipe joint. The connection part between the two is sealed and a liquid outlet flowmeter 162 is installed. The inner wall of the hollow pipe 161 and the inner wall of the reciprocating rotating shaft 142 form a liquid outlet channel;

[0060] 8. The nozzle 150 realizes the reciprocating 180° spraying operation with the meshing of the two pairs of incomplete gear mechanisms in the reciprocating swing structure;

[0061] 9. The nozzle 150 can be installed with an electric adjustable nozzle 151, which can be adjusted to different nozzles for spraying during different spraying operations to produce different spraying effects.

[0062] See Figure 6 , this embodiment also provides a pavement maintenance spraying system based on hydraulic drive. The system includes a maintenance liquid supply source, a main supply path, a pumping station 300, and the above-mentioned pavement maintenance spraying device based on hydraulic drive arranged at intervals along the highway. Each device 100 is fixed to the middle isolation guardrail of the highway bridge. A liquid supply branch is respectively arranged at the liquid inlet 121 of each device 100, and each liquid supply branch connects the corresponding device to the main supply path. The liquid inlet end of the main supply path is connected to the maintenance liquid supply source. A pumping station 300 is arranged on the main supply path for pumping the maintenance liquid from the maintenance liquid supply source along the main supply path and the liquid supply branch to the corresponding device.

[0063] In this embodiment, the spraying of the maintenance liquid can be remotely controlled by controlling the start and stop of the pumping station 300.

[0064] In a specific embodiment, through the water pressure control of the pumping station, the road surface maintenance spraying device realizes stable output within the water pressure range of 1.0 - 2.0 Mpa. Under the control of this water pressure, the spraying radius of the road surface maintenance equipment is 11 - 15 m, which can cover the normal one-way three lanes of the highway. A 2 MPa low-pressure main pumping station will be arranged on each highway, and a road surface maintenance spraying device of this application will be installed every 200 meters along the way.

[0065] The system of this embodiment may further include an industrial network control center 200, an electromagnetic overflow valve and a throttle valve 400. The electromagnetic overflow valve and the throttle valve 400 are respectively arranged on each liquid supply branch. Each device is fixedly installed with a device-end central processor and a device-end wireless signal transmitter. The inlet flowmeter 172 and the outlet flowmeter 162 are both bidirectionally electrically connected to the device-end central processor through wires. The input end of the device-end wireless signal transmitter is electrically connected to the output end of the corresponding device-end central processor. The pumping station includes a pumping station control device and a pumping station-end communication component. The pumping station control device includes a pumping station-end central processor and a pumping station-end execution unit. The pumping station-end communication component is electrically connected to the pumping station-end central processor of the pumping station control device. The pumping station-end central processor controls the start and stop of the pumping station through the pumping station-end execution unit according to the data obtained by the pump-end communication component. The input end of the industrial network control center 200 is signal-connected to a control center communication component. The output signals of the device-end wireless signal transmitter and the pumping station-end communication component are respectively connected to the input end of the control center communication component. The input ends of the electromagnetic overflow valve and the throttle valve 400 of the pumping station-end communication component are respectively connected to the output signal of the control center communication component.

[0066] The whole set of devices can be integrally controlled by using the industrial network control center 200, remotely control the start and stop of the pumping station 300, and separately control the flow pressure of the maintenance liquid of each device by separately equipping an electromagnetic overflow valve and a throttle valve 400 on each device. With the addition of the industrial network control center 200, the spraying operation of the pumping station 300, the electromagnetic overflow valve and the throttle valve 400, and the maintenance device can be remotely controlled, enabling the maintenance device to spray more precisely.

[0067] In this application, how to perform remote control is not the core inventive point of this application, so it will not be described in detail.

[0068] Embodiment 2

[0069] Different from Embodiment 1, the device of Embodiment 2 includes a hollow metal hose. The hollow metal hose connects the nozzle 150 and the liquid outlet 122, and the inner wall of the hollow metal hose forms a liquid outlet channel.

[0070] The present invention provides an idea and method for a pavement maintenance spraying device and system based on hydraulic drive. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by using the prior art.

Claims

1. A pavement maintenance spraying device based on hydraulic drive, characterized in that, The device includes an installation platform (110), a turbine (120) provided with a liquid inlet (121) and a liquid outlet (122), a reciprocating swing structure, a nozzle (150), and a liquid outlet channel; the installation platform (110) is configured to be fixedly installed on the middle isolation guardrail of a highway bridge; the turbine (120) and the reciprocating swing structure are respectively fixedly installed on the installation platform (110); the liquid inlet (121) is used to introduce a maintenance liquid with pressure so that the turbine (120) converts the kinetic energy of the maintenance liquid into rotational mechanical energy; the liquid outlet channel connects the liquid outlet (122) and the nozzle (150); the rotational output shaft (123) of the turbine (120) is drivingly connected to the reciprocating swing structure, and the reciprocating swing structure is connected to the nozzle (150) to drive the nozzle (150) to reciprocate under the drive of the turbine (120). The reciprocating swing structure includes a one-way rotating shaft (141), a reciprocating rotating shaft (142), a first incomplete gear (143), a second incomplete gear (144), a first complete gear (405), a second complete gear (147), and an idler gear (146) that are drivingly connected to the rotational output shaft (123) of the turbine (120). The first incomplete gear (143) and the second incomplete gear (144) are coaxially and fixedly connected to the one-way rotating shaft (141), and the tooth portions of the first incomplete gear (143) and the second incomplete gear (144) are offset from each other by 180°; the first complete gear (405) and the second complete gear (147) are coaxially and fixedly connected to the reciprocating rotating shaft (142); the first complete gear (405) meshes with the first incomplete gear (143); the idler gear (146) is located between the second incomplete gear (144) and the second complete gear (147), and the second incomplete gear (144) and the second complete gear (147) respectively mesh with the idler gear (146); the nozzle (150) is fixedly connected to the reciprocating rotating shaft (142).

2. The pavement maintenance spraying device based on hydraulic drive according to claim 1, wherein It includes a planetary reducer (130), and the rotational output shaft (123) of the turbine (120) is drivingly connected to the one-way rotating shaft (141) through the planetary reducer (130).

3. The pavement maintenance spraying device based on hydraulic drive according to claim 2, characterized in that, The turbine (120) includes a housing (124) and a fan (125). A pump chamber is provided inside the housing (124). The pressurized curing liquid flows through the pump chamber from the liquid inlet (121) and then flows out from the liquid outlet (122). The rotary output shaft (123) is rotatably installed in the pump chamber. The fan (125) is located in the pump chamber and is fixedly connected to the rotary output shaft (123). One end of the rotary output shaft (123) extends outside the housing (124) to be in transmission connection with the reciprocating swing structure. A mechanical seal device is provided between the extended end of the rotary output shaft (123) and the housing (124).

4. A pavement maintenance spraying device based on hydraulic drive according to claim 3, characterized in that, The mechanical seal device includes an angular contact ball bearing (129), a moving ring (126), a compression spring, and a stationary ring (127). The extended end of the rotary output shaft (123) is provided with an angular contact ball bearing (129). The extended end of the rotary output shaft (123) is supported on the housing (124) through the angular contact ball bearing (129). The stationary ring (127) is installed on the rotary output shaft (123) and is arranged opposite to the fan (125). The moving ring (126) is installed on the rotary output shaft (123) and is located on the side of the stationary ring (127) away from the fan (125). A compression spring is installed between the angular contact ball bearing (129) and the moving ring (126). One end of the compression spring abuts against the stationary ring (127), and the other end abuts against the angular contact ball bearing (129). When the pressurized curing liquid drives the fan (125) and the rotary output shaft (123) to rotate, the axial force generated by the rotary output shaft (123) will push the moving ring (126) and the compression spring of the mechanical seal device. The angular contact ball bearing (129) drives the moving ring (126) to compress the stationary ring (127) under the action of the compression spring to achieve sealing.

5. A pavement maintenance spraying device based on hydraulic drive according to claim 3, characterized in that, The device includes a hollow pipe (161). One of the hollow pipes (161) is connected to the liquid outlet (122). The reciprocating rotating shaft (142) is a hollow rotating shaft. One end of the reciprocating rotating shaft (142) is connected to the spray head (150), and the other end is rotatably connected to the end of the hollow pipe (161) away from the liquid inlet (121) around the axis of the reciprocating rotating shaft (142), and the connection part between the two is sealed. The inner wall of the hollow pipe (161) and the inner wall of the reciprocating rotating shaft (142) form the liquid outlet channel.

6. A pavement maintenance spraying device based on hydraulic drive according to any one of claims 1 to 5, characterized in that It includes a liquid inlet pipe that communicates an external pressure liquid source with the liquid inlet (121).

7. A pavement maintenance spraying device based on hydraulic drive according to claim 6, characterized in that, It includes a liquid inlet flowmeter (172) and a liquid outlet flowmeter (162). The liquid inlet flowmeter (172) is installed in the liquid inlet pipe, and the liquid outlet flowmeter (162) is installed in the liquid outlet channel.

8. A pavement maintenance spraying system based on hydraulic drive, characterized in that, It includes a curing liquid supply source, a main supply path, a pumping station (300), and several arranged at intervals along the highway A pavement maintenance spraying device based on hydraulic drive according to claim 7; a liquid supply branch is respectively arranged at the liquid inlet (121) of each device, and each liquid supply branch communicates the corresponding device with the liquid supply main path; the liquid inlet end of the liquid supply main path is communicated with the maintenance liquid supply source; a pumping station (300) is arranged on the liquid supply main path for pumping the maintenance liquid from the maintenance liquid supply source along the liquid supply main path and the liquid supply branch to the corresponding device.

9. The pavement maintenance spraying system based on hydraulic drive according to claim 8, characterized in that, It further includes an industrial network control center (200), an electromagnetic overflow valve and a throttle valve (400). An electromagnetic overflow valve and a throttle valve (400) are respectively arranged on each liquid supply branch. Each device is fixedly installed with a device-end central processor and a device-end wireless signal transmitter. The inlet flowmeter (172) and the outlet flowmeter (162) are both bidirectionally electrically connected to the device-end central processor through wires. The input end of the device-end wireless signal transmitter is electrically connected to the output end of the corresponding device-end central processor; the pumping station includes a pumping station control device and a pumping station-end communication component. The pumping station control device includes a pumping station-end central processor and a pumping station-end execution unit. The pumping station-end communication component is electrically connected to the pumping station-end central processor of the pumping station control device. The pumping station-end central processor controls the start and stop of the pumping station through the pumping station-end execution unit according to the obtained data of the pump-end communication component; the input end of the industrial network control center (200) is signal-connected to a control center communication component. The output signals of the device-end wireless signal transmitter and the pumping station-end communication component are respectively connected to the input end of the control center communication component; the input ends of the pumping station-end communication component and the electromagnetic overflow valve and the throttle valve (400) are respectively connected to the output signal of the control center communication component.

Images