JP4621556B2 - Endless track washing machine - Google Patents

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 is composed of 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.

By the way, in the case of the cleaning device disclosed in Patent Document 1, the cleaning water is sprayed onto the endless track portion by drawing a sine wave track as shown in FIG. 11 by operating the swing nozzle while running the main body. become. However, the mud adhering to the endless track part is often very hard, such as clay and frozen soil, and it is difficult to peel off from the endless track part just by spraying high-pressure water once. Moreover, even if the main body is moved back and forth, the high pressure water is not necessarily ejected by tracing the trajectory at the time of going back, and since cutting in the lateral direction is not performed, hard mud is not There was a problem that the mud could not be sufficiently peeled off because it was simply cut into a groove shape.
Japanese Patent No. 2583156

  The problem to be solved by the present invention is to provide an endless track-type vehicle cleaning device that realizes a mud cutting operation by high-pressure cleaning and can reliably remove stubborn mud adhering to the endless track portion.

In order to solve such a problem, the present invention includes a guide rail disposed along a side surface of an endless track vehicle, a cart that travels back and forth along the guide rail, a nozzle device that moves up and down along the cart, A cleaning device comprising a pump for supplying cleaning water to a nozzle device, and a position setting means for setting a cleaning start position of the nozzle device, and for cleaning an endless track type vehicle with the cleaning water from the nozzle device. includes a nozzle body wash water of the low-pressure nozzle and a low flow rate and arranged back and forth and a high-pressure nozzle for injecting at high pressure for injecting wash water at a high flow rate at low pressure, a lifting means for lifting the nozzle body in the vertical direction, and a swinging means for swinging the nozzle body in the vertical direction, after setting the cleaning start position of the nozzle device at a position setting means, while spraying the washing water of the low pressure and high pressure from the nozzle body of the nozzle device, And operation of the vehicle by a predetermined distance forward or backward, is an operation and for elevating the nozzle body those that can execute a first cleaning pattern alternately performed.

Further, while spraying the washing water from the nozzle of the low pressure and high pressure nozzle devices, the operation for back and forth carriage, second cleaning pattern for performing nozzle device alternately and operation to the predetermined distance increases or lowered, the nozzle device nozzle A third cleaning pattern for alternately performing an operation of moving the carriage back and forth while jetting low pressure and high pressure cleaning water from the body while the nozzle is swung by a predetermined angle, and an operation of moving the nozzle device up or down by a predetermined distance; And a fourth cleaning pattern that alternately performs the operation of moving the carriage back and forth while spraying low and high pressure cleaning water from the nozzle body of the nozzle device and the operation of swinging the nozzle device upward or downward by a predetermined angle. It is a thing.

  In the endless track type vehicle cleaning device of the present invention, when a carriage equipped with a nozzle device is advanced a predetermined distance along the side of the vehicle, a cleaning pattern for moving the nozzle device up and down at that position is performed. According to this cleaning operation, a comb-like jet trajectory is obtained, and the nozzle acts one or more times in the vertical direction, so that the adhered mud can be cut and peeled off reliably. In addition, the nozzle device includes a low-pressure nozzle that injects a large amount of washing water at a low pressure and a high-pressure nozzle that injects a small amount of washing water at a high pressure. By peeling off, the peeling action can be improved.

  Moreover, since the washing pattern for moving the carriage back and forth is performed while changing the elevation position of the nozzle device, the mud separated by the previous washing pattern can be washed away from the endless track portion. The upper surface of the endless track portion can be cleaned by a cleaning pattern in which the operation of moving the carriage back and forth with each nozzle being swung by a predetermined angle and the operation of moving the nozzle device up or down by a predetermined distance are alternately performed. The inner bottom surface of the endless track portion can be cleaned by a cleaning pattern in which the operation of moving the carriage back and forth and the operation of swinging the nozzle device upward or downward by a predetermined angle are alternately performed.

  Furthermore, a model setting means for setting the model of the vehicle to be cleaned, a position setting means for setting the cleaning start position of the nozzle device, and a start means for starting the first cleaning pattern with the contents set by each setting means are provided. Therefore, the cleaning effect can be obtained regardless of the model.

  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 switch 7a, 7b reciprocates on the guide rails 2, 2 within a travel range given by switching. 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 are moved up and down on the carriage within a lifting range given by switching. The nozzle device 4 includes a swing motor 16 that swings the nozzles 10 and 11 in the vertical direction, a drive unit 17 that is driven by the motor, and amplitude limit switches 18a and 18b, and the amplitude limit switches 18a and 18b. The nozzles 10 and 11 are swung within a rocking range given by switching.

  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 FIG. 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 charges and selecting a car wash course, and is equipped with an operation panel and electrical components at a height that is easy for the user to operate. 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 microcomputer 41. In 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 operation panel 43 has a model selection key 44 for selecting the type of the 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. 45. Positioning key 46 for appropriately adjusting the injection start position according to the position of the washing vehicle stopped in the car washing space, a decision key 47 for determining and registering the set contents, and starting a program with the decided contents , An operation key group including a start / pause key 48 for pause, a stop key 49 for stopping injection, a model selection key 44 and a dirt degree key 45, and a model to be selected and a dirt degree are displayed. Display panel 50.

Next, the operation of the endless track type vehicle washing apparatus of 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 44 is operated to display the desired model while viewing the display on the display panel 50, and then the enter key 47 is input. Next, the dirt degree key 45 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 50, and then the enter key 47 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 46 while observing the place where the cleaning water is hit, and moves the cleaning water so as to hit the cleaning start position determined according to 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 swing 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 adjusted, the setting becomes valid. By inputting the start key 48, 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, a second cleaning step is performed in which the mud removed in the first cleaning step is washed away by moving the carriage in the front-rear direction while changing the lifting position of the nozzle (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 nozzle swing angle 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 step for cleaning the inner bottom surface of the endless track portion is performed by moving the carriage 3 in the front-rear direction while changing the nozzle swing angle (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.

  It should be noted that distances, heights and angles other than those detected by each limit switch, that is, traveling distances s1 to s4 in the carriage traveling operation, a predetermined height h1 to h3 of the nozzle device in the nozzle lifting operation, The swing angles r1 and r2 are determined by the energization time of the travel motor 5, the lift motor 12 and the swing motor 16, respectively. This is because it corresponds to the type of vehicle to be cleaned, mainly the length and height of the endless track part.When cleaning the largest vehicle that can be cleaned with this device, the nozzle lifting operation and the traveling operation of the carriage are Both are executed between limit switches.

  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 layout figure of the whole car wash place in which the endless track type vehicle washing apparatus 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. 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 explanatory drawing which shows the cleaning locus | trajectory of the conventional cleaning apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car wash apparatus 2 Guide rail 3 Dolly 4 Nozzle apparatus 10 Low pressure nozzle 11 High pressure nozzle 23 Low pressure pump 26 High pressure pump

Claims (4)

A guide rail disposed along the side surface of the endless track type vehicle, a cart that runs back and forth along the guide rail, a nozzle device that moves up and down along the cart, and a pump that supplies cleaning water to the nozzle device A position setting means for setting a cleaning start position of the nozzle device, and a cleaning device for cleaning the endless track vehicle with the cleaning water from the nozzle device,
The nozzle device includes a nozzle body in which a low-pressure nozzle that injects a large flow of cleaning water at a low pressure and a high-pressure nozzle that injects a small flow of cleaning water at a high pressure , and the nozzle body is moved up and down in the vertical direction. Elevating means, and swing means for swinging the nozzle body in the vertical direction ,
After setting the cleaning start position of the nozzle device by the position setting means, the nozzle body is moved forward or backward by a predetermined distance while jetting low-pressure and high-pressure cleaning water from the nozzle body of the nozzle device; An endless track-type vehicle cleaning device that executes a first cleaning pattern for alternately moving up and down, and cuts and cleans mud stuck to the endless track into a comb shape. In the endless track type vehicle washing apparatus according to claim 1,
Executing a second cleaning pattern that alternately performs an operation of moving the carriage back and forth and an operation of raising or lowering the nozzle body by a predetermined distance while jetting low-pressure and high-pressure washing water from the nozzle body of the nozzle device ; An endless track-type vehicle cleaning device characterized by horizontally cutting and cleaning mud stuck to an endless track. In the endless track type vehicle washing apparatus according to claim 1 or 2,
An operation of moving the carriage back and forth in a state where the nozzle body is swung by a predetermined angle while injecting low-pressure and high-pressure washing water from the nozzle body of the nozzle device, and an operation of raising or lowering the nozzle body by a predetermined distance. An endless track type vehicle cleaning apparatus that executes a third cleaning pattern that alternately performs cleaning of mud adhering to the upper surface of the endless track. In the endless track type vehicle washing apparatus according to claim 1, 2 or 3,
A fourth cleaning pattern that alternately performs an operation of moving the carriage back and forth while jetting low-pressure and high-pressure cleaning water from the nozzle body of the nozzle device and an operation of swinging the nozzle body upward or downward by a predetermined angle; An endless track type vehicle cleaning device that executes and cleans mud stuck to the inner bottom surface of the endless track.

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