JP2007050849A - Endless track type vehicle washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an endless track type vehicle washing device capable of allowing mechanical dispersion, achieving mud and soil cutting operation by an ideal washing track and securely removing mud and soil strongly adhered to an endless track part. <P>SOLUTION: This endless track type washing device is provided with a drive motor 5 driving a carriage 3; limit switches 7a, 7b detecting a back and forth traveling limit of the carriage 3; a traveling control part 44 controlling drive time of the motor 5 to make the carriage 3 travel for a predetermined distance; a timer part 45 measuring time for moving forward once in the traveling range given by the limit switches 7a, 7b; and a time correction part 46 adjusting the drive time in the traveling control part 44 when the time measured by the timer part 45 differs from preset reference time. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an endless track type vehicle cleaning apparatus that is mainly used for spraying cleaning water on an endless track portion of an endless track type vehicle and cleaning and removing adhering mud.

  A vehicle having an endless track portion (for example, a construction machine such as a shovel car or a bulldozer) is a work in a poor scaffold, and therefore a lot of mud adheres to the endless track portion after the work. The adhering mud is dried or frozen as time passes and adheres to the endless track, so that the operator has required a great deal of labor and time to remove the adhering mud. In view of this, an endless track type vehicle washing apparatus as disclosed in Patent Document 1 has been proposed. This device comprises a main body that runs along the side surface of the endless track vehicle, a support that is supported by the main body so as to be movable up and down, and a swinging nozzle that is provided on the support. The swing nozzle is operated and high-pressure cleaning water is sprayed so as to draw a waveform trajectory, and the endless track portion is cleaned while changing the lifting position of the support.

  In the case of this cleaning device, the traveling of the main body and the swinging of the swinging nozzle are simultaneously advanced, so that the cleaning water is sprayed onto the endless track portion in a locus of a sine wave. The fixed mud is very hard, such as clay and frozen soil, and it is difficult to peel off from the endless track with a single jet of high-pressure water. Moreover, even if the main body is reciprocated or the lift position is changed, high pressure water is not necessarily sprayed by tracing the trajectory once passed, but hard mud is only cut into grooves and cutting mud. There was a problem that could not.

Therefore, every time the inventor advances (or reverses) the carriage a predetermined distance, the inventor temporarily stops the carriage, raises and lowers the nozzle device at that position, draws a trajectory of the pulse waveform, and supplies cleaning water to the endless track portion. A cleaning device to be sprayed was proposed in Japanese Patent Application No. 2005-212819. This device cuts the solidified mud into a size that can be easily peeled off from the endless track by keeping the distance traveled by the carriage and the height at which the nozzle device is raised and lowered appropriately. However, the travel distance and the lift height are adjusted according to the driving time of the travel motor and the lift motor, respectively. Therefore, the travel height and the lift height are uniquely determined by mechanical variation. It was difficult.
Japanese Patent No. 2583156

  The problem to be solved by the present invention is an endless track that allows mechanical variation, realizes mud cutting operation with an ideal cleaning track, and can reliably remove stubborn mud adhering to the endless track. It is providing a type vehicle washing device.

  In order to solve such a problem, the present invention provides a guide rail disposed along a side surface of an endless track vehicle, a carriage that runs back and forth along the guide rail, a nozzle device provided in the carriage, And a pump for supplying cleaning water to the nozzle device, wherein the cleaning device sprays the cleaning water from the nozzle device onto the endless track portion of the vehicle as the carriage travels, and performs driving to drive the carriage. A travel end detecting means for detecting the front and rear travel limit of the carriage, a travel control means for controlling the drive time of the drive means to travel the carriage for a predetermined distance, and a travel range given by the travel end detecting means is 1 Time measuring means for measuring the traveling time, and time correcting means for adjusting the driving time in the travel control means when the time measured by the time measuring means is different from a preset reference time A.

  In addition, the nozzle device can be moved up and down on the carriage, a driving means for moving the nozzle device up and down, a lifting end detecting means for detecting the upper and lower limit, and a driving time of the driving means are controlled to move the nozzle device to a predetermined distance. Elevation control means for elevating, time measuring means for measuring a time for going up and down given by the elevating end detection means, and time elevating control when the time measured by the time measurement means is different from a preset reference time And a time correction means for adjusting the drive time of the means.

  Further, the nozzle device is provided with a nozzle body that is supplied with water by a pump, and is capable of swinging to swing the nozzle body in the vertical direction. The drive means for swinging the nozzle body and the swing for detecting the vertical swing limit are provided. The moving end detecting means, the swing controlling means for swinging the nozzle body by a predetermined angle by controlling the driving time of the driving means, and the time for going through the swing range given by the swing end detecting means are measured. And a time correction means for adjusting the driving time of the swing control means when the time measured by the time measurement means is different from a preset reference time.

  In the endless track type vehicle washing apparatus of the present invention, the traveling motor drive time when the carriage moves from the front end to the rear end on the guide rail is measured, and if this time is longer than the reference value, the motor drive time per unit operation Is adjusted so that the motor drive time per unit operation is shortened. According to this, mechanical variation is allowed, and a cleaning operation with a cleaning locus having a high cleaning effect is always possible. In addition, mechanical variations are similarly allowed for the raising and lowering of the nozzle device and the swinging of the nozzle body, and a cleaning operation with a cleaning locus having a high cleaning effect is always possible.

  The form of Example 1 shown below.

  Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a layout diagram of the entire car wash yard where the endless track type vehicle cleaning device of the first embodiment is installed, and FIGS. 2 and 3 are explanatory diagrams showing the configuration of the endless track type vehicle cleaning device. Reference numerals 1 and 1 denote washing apparatuses, guide rails 2 and 2 provided at positions sandwiching an endless track type vehicle C stopped in a car wash space A, and a carriage that reciprocates in the front-rear direction of the vehicle C along the guide rails. 3 and 3, and nozzle devices 4 and 4 that move up and down on the carriage.

  The carriage 3 includes a traveling motor 5, a drive unit 6 that drives the carriage 3 by this motor, and traveling limit switches 7 a and 7 b, and traveling limits are provided at docks 8 a and 8 b provided at the front and rear ends of the guide rail 2. The vehicle travels back and forth on the guide rails 2 and 2 within a travel range S given by switching of the switches 7a and 7b. The carriage 3 is formed in a vertically long frame shape, and the nozzle device 4 moves up and down along the frame.

  The nozzle device 4 has a nozzle body 9 in which a low-pressure nozzle 10 for injecting a large amount of washing water at a low pressure and a high-pressure nozzle 11 for injecting a washing water at a high pressure at a low flow are arranged on the inner surface facing the vehicle. And a lift motor 12, a drive unit 13 for driving the nozzle device 4 by this motor, and lift limit switches 14a and 14b, and travel limit switches on docks 15a and 15b provided at the upper and lower ends of the carriage frame. 14a and 14b move up and down on the carriage within an elevating range H given by switching.

  The nozzle body 9 is swingable in the vertical direction by a swing motor 16 provided in the nozzle device 4 and a drive unit 17 driven by the motor, and is given by switching the amplitude limit switches 18a and 18b. It swings within the swing range R.

  FIG. 4 is a plan view of the entire car wash station where the endless track type vehicle washing apparatus is installed, and the water supply system and the power supply system will be described with reference to this figure. The car wash space A is inclined so that the entrance / exit side becomes higher, and the muddy water generated during the car wash and the separated mud flow into the water collecting groove 21 in front of the car wash space A. Reference numeral 22 denotes a filtration tank, which stores the car wash wastewater that has flowed into the water collecting groove 21 by filtering it with a filter or the like. The low pressure pumps 23 and 23 are provided inside the low pressure nozzle 10 through the pipes 24 and 24. , 10 water. Reference numeral 25 denotes a water tank, which is connected to a water supply source such as a water supply and is always kept full of water. A high pressure pump 26, 26 is connected to supply the stored water to the high pressure nozzles 11, 11 through pipes 27, 27. To do.

  28 is a reception unit for receiving a fee and selecting a car wash course, and is provided with an operation panel and electrical components at a height that can be easily operated by the user, and connected to each pump, motor, switch, etc. by input / output cables 29 and 29 Yes. 30 and 30 are pipe / wiring guides provided along the guide rails 2 and 2, which are bendable cylindrical articulated bodies having one end fixed and the other end being a free end. And cables can move in an orderly manner as the base moves.

  Next, the control system of the first embodiment will be described with reference to FIG. A control unit 40 is provided inside the reception unit 28 and includes a control board 41. At the I / O port 42, the traveling motor 5 of the carriage 3, the traveling limit switches 7a and 7b, the lifting motor 12 of the nozzle device 4, The lift limit switches 14a and 14b, the swing motor 16, the amplitude limit switches 18a and 18b, the low pressure pump 23, the high pressure pump 26, and the operation panel 43 provided on the front of the reception unit are connected.

  The control board 41 includes a travel control unit 44 that controls the motors 5, 12, and 16, a timer unit 45 that measures the drive times of the motors 5, 12, and 16, and the drive times of the motors 5, 12, and 16. A time correction unit 46 for adjustment and a memory 47 in which each control data is stored are provided.

  The operation panel 43 has a model selection key 48 for selecting the type of washing vehicle programmed in advance, and a contamination degree key for setting the washing water injection time, the number of nozzle movements, and the like according to the degree of contamination of the washing vehicle. 49, a positioning key 50 for appropriately adjusting the injection start position according to the position of the washing vehicle stopped in the car washing space, a decision key 51 for determining and registering the set contents, and starting a program of the decided contents , An operation key group including a start / pause key 52 for stopping, a stop key 53 for stopping injection, a changeover switch 54 to a management mode enabling various setting / aggregation operations, and a model selection key 48 and a dirt level key 49, and a display panel 55 for displaying a model to be selected and a dirt level.

Next, the operation of the endless track type vehicle washing apparatus according to the first embodiment will be described.
The operator stops the washing vehicle C at a predetermined position in the car wash space A, and operates the operation panel 43 to execute the car wash program. As the procedure, first, the model selection key 48 is operated to display the desired model while viewing the display on the display panel 55, and then the enter key 51 is input. Next, the dirt degree key 49 of the vehicle is operated to display a desired number from the three-stage dirt degree while also viewing the display on the display panel 55, and then the enter key 51 is input. If operation so far is performed, the pumps 23 and 26 will operate | move and washing water will be injected from the nozzles 10 and 11. FIG. The operator operates the nozzles 10 and 11 using the positioning key 50 while observing the place where the cleaning water is applied, and moves the cleaning water to the cleaning start position determined in accordance with the vehicle to be cleaned. .

  The positioning of the nozzle is intended to prevent a difference from occurring in the portion where the cleaning water hits depending on the stop position or model of the vehicle. In the initial state, the carriage 3 stands by at the rear end position of the travel detected by the travel limit 7a, the lower end position of the lift detected by the lift limit 15a, and the swinging upward position detected by the amplitude limit 18a. Adjust the running position and the swing position, and set the cleaning start position according to the stopped vehicle. When the enter key 47 is operated after the desired position is set, the setting becomes valid. By inputting the start key 52, the car wash operation is executed from the set wash start position according to the decided program.

  FIG. 6 is a flow chart showing a car wash program executed when the vehicle to be washed is set to a hydraulic excavator and the degree of dirt as level 1 (low), and FIGS. 7 to 10 are nozzles when this car wash program is executed. It is the conceptual diagram which showed the washing | cleaning locus | trajectory, Car wash operation | movement is demonstrated using these figures.

  When the car wash starts, a first washing process is performed in which the nozzle is moved in the vertical direction while changing the traveling position of the carriage 3 to cut off the mud stuck to the endless track portion of the vehicle while cutting (1). The first cleaning process draws a cleaning trajectory as shown in FIG. 7 and applies cleaning water to the endless track portion. The cleaning start position P1 positioned before the start (running position: arbitrary, lift position: lower end, neck The operation is started based on the swing position (arbitrary), and first, the lift motor 12 is driven to raise and lower the nozzle device 4 between a predetermined height position h1 and the height of the cleaning start position P1 (arrow a). Thereafter, the traveling motor 5 is driven to move the carriage 3 forward by a distance s1 (arrow b), and the nozzle device 4 is moved up and down again at that position. Thus, the nozzle device 4 is alternately moved up and down the height h1 and the carriage 3 is moved forward by the distance s1. When the nozzle apparatus 4 is repeated n1 times (here, 20 times), the advancement of the carriage 3 is stopped. Subsequently, in the same procedure, the nozzle device 4 is moved up and down the height h1-the carriage 3 is moved backward by the distance s1, and the carriage backward movement is stopped when it is repeated n1 times.

  The comb-shaped cleaning trajectory obtained by the first cleaning step is effective for cutting the mud stuck to the upper portion of the endless track portion, and the injection of high-pressure cleaning water in the vertical direction accompanying the raising and lowering of the nozzle is the same. By acting back and forth on the trajectory, the hardened mud is reliably destroyed. The destroyed mud is gently washed away by a low-pressure jet with a large flow rate and peeled off from the endless track.

  Next, by moving the carriage in the front-rear direction while changing the raising / lowering position of the nozzle device 4, a second cleaning step is performed to wash away the mud removed in the first cleaning step (2). In the second cleaning process, the cleaning trajectory is drawn as shown in FIG. 8 and the cleaning water is applied to the endless track portion. The position P2 (travel position: rear end, lift position: lower end, swing position: upward) The operation is started as a base point, and the traveling motor 5 is driven to reciprocate the carriage 3 to a distance s2 (arrow c). Thereafter, the lift motor 12 is driven to raise the carriage 3 by a predetermined height h2 (arrow d), and the carriage 3 is reciprocated at that height position. Thus, the height position of the nozzle device 4 is changed and the carriage 3 is reciprocated n2 times (here, 3 times).

  By such a 2nd washing process, the mud which was not able to be removed by the 1st washing process is completely stripped off by the injection of the high-pressure washing water in the horizontal direction. Then, it is further softened and peeled off from the endless track portion by the large-flow low-pressure injection.

  Next, a third cleaning step for cleaning the upper surface of the endless track portion is performed by adjusting the swing angle of the nozzle body 9 and moving the carriage 3 in the front-rear direction (3). The third cleaning step draws a cleaning trajectory as shown in FIG. 9 and applies cleaning water to the upper surface of the endless track portion. The position P3 (traveling position: rear end, elevating position: upper end, swinging position: downward) The operation is started with the base point as a base point (a position swung upward by a predetermined angle r1), and the traveling motor 5 is driven to reciprocate the carriage 3 to the distance s3 (arrow e). 3 is lowered by a predetermined height h3 (arrow f), and the carriage is reciprocated again at the height position. Thus, the height position of the nozzle device 4 is changed and the carriage 3 is reciprocated n3 times (here, 4 times).

  By such a third cleaning step, the mud stuck to the upper surface of the endless track portion is cleaned.

  Next, a fourth cleaning process is performed to clean the inner bottom surface of the endless track portion by moving the carriage 3 in the front-rear direction while changing the swing angle of the nozzle body 9 (4). The fourth cleaning step draws a cleaning trajectory as shown in FIG. 10 and applies cleaning water to the inner bottom surface of the endless track portion. The position P4 (traveling position: rear end, elevating position: lower end, swinging position: The operation starts from the upward position), the head motor 16 is driven to swing the nozzle downward by a predetermined angle r2 (arrow g), and the traveling motor 5 is driven to reciprocate the carriage 3 to the distance s4. (Arrow h). Thereafter, every time the head motor 5 is driven to cause the nozzle to swing downward by a predetermined angle r2, the carriage 3 reciprocates, and the carriage 3 reciprocates n4 times (here, 3 times) by changing the nozzle swing angle. Let

  By such a fourth cleaning step, the mud stuck to the inner bottom surface of the endless track portion is cleaned.

  Thus, when the first to fourth cleaning steps are executed, the car wash program is terminated. The cleaning water sprayed in this apparatus is, for example, about 300 liters / minute and 0.3 MPa from the low pressure large flow rate nozzle, and 10 liters / minute and 20 MPa from the high pressure low flow rate nozzle. Even if it is very firmly fixed like frozen soil due to different types of washing water jets, it can be surely dropped by washing form that cuts into blocks by high pressure and at the same time drops blocks cut by large flow rate. be able to.

  In such a series of cleaning operations, distances / heights / angles other than those detected by the respective limit switches, that is, travel distances s1 to s4 in the cart travel operation, and predetermined heights h1 to h1 of the nozzle device in the nozzle lifting / lowering operation. h3, the swing angles r1 and r2 of the nozzle body in the nozzle swinging operation are determined by the energization time of the traveling motor 5, the lifting motor 12 and the swinging motor 16, respectively. Therefore, there are cases where the distance, height, and angle do not reach the expected values even with the same energization time due to the deterioration of the equipment due to long-term use and the variation of the original mechanical elements. In response to this problem, the cleaning apparatus of the present embodiment can perform time correction in the management mode.

FIG. 11 is a flowchart showing the time correction operation in the management mode.
The time correction is executed when the changeover switch 54 of the operation panel 43 is set to the management mode and the start key 52 is input. When the time correction is started, the carriage 3, the nozzle device 4 and the nozzle body 9 are each in the standby position, that is, the rear end position where the travel limit 7a detects the carriage 3, and the lower end position where the lift limit 15a detects the nozzle device 4. The nozzle body 9 is moved to the swinging upward position detected by the amplitude limit 18a (5). From this state, time correction of the carriage 3, the nozzle device 4, and the nozzle body 9 is sequentially performed (6) to (8).

FIG. 12 is a flowchart showing the time correction operation of the carriage 3.
First, the travel motor 5 is driven (9), and the carriage 3 is moved forward from the travel rear end position detected by the travel limit 7a to the travel front end position detected by the travel limit 7b. The timer 45 is operated in accordance with the driving of the travel motor 5 (10), and when the travel limit 7b detects that the carriage 3 has reached the travel front end position (11), the timer is stopped (12), and the travel range S (Distance between limits) The driving time Ta of the traveling motor 5 while traveling is measured (13). Next, the drive time Ta is compared with a reference value T (14), and a correction value ΔT when the carriage moves forward is calculated according to the time difference (15).

  Here, if the driving time Ta required for the carriage 3 to travel in the traveling range S is longer than the reference value T, there is a possibility that the traveling resistance increases or the driving system deteriorates due to long-term use. For example, considering the first cleaning step, since the driving time t1 of the traveling motor 5 required to travel the carriage 3 by the distance s1 is initially set based on the reference value T, such mechanical wear Even if the traveling motor 5 is driven for a time t1 in a state where there is, the carriage 3 does not travel the distance s1. Then, the interval per unit operation (that is, the distance s1) is narrowed and the best cutting form cannot be obtained, and the number of times of raising / lowering the nozzle device 4 is determined, so that the cleaning range for the endless track portion is narrowed. . Such a problem is solved by correcting the driving time t1 by the correction value ΔT (= Ta / T) obtained from the reference value T and the actual measurement value Ta by this time correction.

  The time correction of the carriage 3 is also calculated in the same manner as the correction value ΔT ′ when the carriage moves backward, that is, the correction value when the vehicle travels backward from the travel limit 7b to the travel limit 7a. Therefore, the traveling of the carriage is time-corrected based on the correction values given to the forward and backward trips, and is managed so that the cutting operation by the reliable carriage traveling can be performed.

  The time correction (7) of the nozzle device 4 is almost the same as the time correction of the carriage 3, and the driving time of the lifting motor 12 while the nozzle device 4 is raised from the lifting limit 15a to the lifting limit 15b is measured by the timer 45. If this time is different from the reference value, a correction value when the nozzle device is raised is calculated according to the time difference. Further, the driving time of the lifting motor 12 while the nozzle device 4 is lowered from the lifting limit 15b to the lifting limit 15a is measured by the timer 45, and the correction value when the nozzle device is lowered is determined according to the time difference between this time and the reference value. Is to be calculated.

  The time correction (8) of the nozzle body 9 is substantially the same as the time correction of the carriage 3 and the nozzle device 4, and the swing motor while the nozzle body 9 is swung downward from the swing limit 18a to the swing limit 18b. The driving time of 16 is measured by the timer 45, and if this time is different from the reference value, a correction value for the downward swing of the nozzle body is calculated according to the time difference. The driving time of the swing motor 16 while the nozzle body is swung upward from the swing limit 18b to the swing limit 18a is measured by the timer 45, and the nozzle body is measured according to the time difference between this time and the reference value. A correction value at the time of swinging upward is calculated.

  Here, the correction values are obtained for both forward and backward movement of the carriage 3, upward and downward movement of the nozzle device 4, and upward and downward swing of the nozzle body 9, but either one may be used. Further, the time correction is performed for all of the carriage 3, the nozzle device 4, and the nozzle body 9, but a portion to be corrected may be selected. By enabling time correction of each part, it is possible to always perform cleaning in an optimal state.

  It is possible to provide a cleaning device that simultaneously removes stuck mud and frozen soil while performing high-pressure and low-pressure cleaning.

It is a car wash layout figure in which the endless track type vehicle washing device of Example 1 was installed. It is a rear view which shows the structure of the endless track type vehicle washing | cleaning apparatus of Example 1. FIG. It is a side view of the same apparatus. It is a top view of the whole car wash place in which the same apparatus was installed. FIG. 3 is a block diagram illustrating a control system according to the first embodiment. It is the flowchart figure which showed the car wash program of execution example 1. It is explanatory drawing which shows the nozzle operation | movement in a 1st washing | cleaning process. It is explanatory drawing which shows the nozzle operation | movement in a 2nd washing | cleaning process. It is explanatory drawing which shows the nozzle operation | movement in a 3rd washing | cleaning process. It is explanatory drawing which shows the nozzle operation | movement in a 4th washing | cleaning process. It is a flowchart figure which shows the operation | movement of time correction in management mode. It is a flowchart figure which shows the operation | movement of the time correction | amendment of the trolley | bogie 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car wash apparatus 2 Guide rail 3 Carriage 4 Nozzle apparatus 9 Nozzle body 10 Low pressure nozzle 11 High pressure nozzle 23 Low pressure pump 26 High pressure pump 40 Control part 44 Traveling control part 45 Timer part 46 Time correction part

Claims (3)

A guide rail disposed along a side surface of the endless track type vehicle, a cart that travels back and forth along the guide rail, a nozzle device provided in the cart, and a pump that supplies cleaning water to the nozzle device, A cleaning device that performs cleaning by spraying cleaning water from the nozzle device to the endless track portion of the vehicle as the carriage travels,
Driving means for driving the carriage, traveling end detection means for detecting the front and rear travel limit of the carriage, traveling control means for controlling the driving time of the driving means to cause the carriage to travel a predetermined distance, and the traveling end detection means Time measuring means for measuring the travel time of the travel range given by the time, and time correction means for adjusting the drive time in the travel control means when the time measured by the time measuring means is different from a preset reference time; An endless track type vehicle washing apparatus comprising:
The nozzle device can be moved up and down on a carriage, a drive means for raising and lowering the nozzle device, a lift end detecting means for detecting a vertical lift limit, and a drive time of the drive means are controlled to raise and lower the nozzle device by a predetermined distance. Elevating control means for controlling, time measuring means for measuring a time for going up and down the elevating range given by the elevating end detecting means, and the elevating control means when the time measured by the time measuring means is different from a preset reference time The endless track type vehicle washing apparatus according to claim 1, further comprising a time correction means for adjusting the driving time in the vehicle.
The nozzle device is provided with a nozzle body that is supplied with water by the pump, and is capable of swinging to swing the nozzle body in the vertical direction. The drive means for swinging the nozzle body and the swing for detecting the upper and lower swing limit are provided. The moving end detecting means, the swing controlling means for swinging the nozzle body by a predetermined angle by controlling the driving time of the driving means, and the time for going through the swing range given by the swing end detecting means are measured. 2. A time correction unit for adjusting the drive time of the swing control unit when the time measured by the time measurement unit is different from a preset reference time. Alternatively, the endless track type vehicle cleaning device according to 2.

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