JPH0642562U - Drain pump car operation mode controller - Google Patents

Abstract

(57) [Abstract] [Purpose] The driving output of the hydraulic pumps 6A and 6B is controlled to a suitable value in accordance with the ground movement or levitating movement of the drainage pump vehicle, and the ground movement speed is limited to a low speed range to ensure traveling safety. While improving the property, the thrust required for levitating movement is obtained. [Structure] From detector 11C to controller 11 of controller 11
When the landing state of the amphibious vehicle 1 is determined based on the detection signal input to B, the control unit 11 outputs a low mode drive signal to the hydraulic pumps 6A and 6B to reduce the ground movement speed of the drainage pump vehicle. When the water surface floating state of the amphibious vehicle 1 is determined based on the detection signal input to the controller 11B, the control device 11 outputs a high mode drive signal to the hydraulic pumps 6A and 6B. , It is configured to obtain the thrust required for the drainage pump truck to levitate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an operation mode control device for a drainage pump vehicle used for emergency drainage in the event of a water disaster, drainage for civil engineering temporary construction work, or water supply / drainage for agriculture.

[0002]

[Prior art]

 Conventionally, as a drainage pump car used for emergency drainage in the event of a water disaster, drainage for temporary construction work, or water supply / drainage for agriculture, cranes used to load and unload equipment such as pumps on trucks, multiple drainage pumps (Submersible pumps) and drainage pumps with floats, private generators that supply power to the drive sources (motors) for these drainage pumps and their operation panels, drainage hoses connected to the drainage outlets of each drainage pump, and each drainage pump. For example, a car tire cable that electrically connects the drive source to the operation panel of the private power generator, a main floodlight for night work, an auxiliary floodlight for spot lighting, and a portable power generator that supplies power to this auxiliary floodlight. Some are equipped with equipment. According to this type of drainage pump car, if it reaches the water level of the drainage or water supply / drainage site by self-propelled, after connecting the drain hose and the cable of the tire cable, the drain pump is put into the water by the crane. Water will be drained by installing it, supplying power to the drive source of the drainage pump by operating the private power generator, and operating the drainage pump.

By the way, in the conventional drainage pump car, when the drainage or water supply / drainage site and the ground around it are hard, the drainage pump car can be self-propelled to the edge of the water, but the ground is soft. It cannot be self-propelled to the water's edge. Therefore, the stop position of the drainage pump car is restricted to a place relatively remote from the water's edge. For this purpose, it is necessary to manually carry out the work of transporting the drainage pump with a float that has been unloaded from the platform by a crane to the water's edge, the work of laying the drainage pump from the water's edge to the water, and the work of connecting and connecting the cable cable. In other words, the work of transporting the drainage pump that was unloaded from the platform by the crane to the waterside by the hand cart, the construction of the inclined guideway at the waterside, the work of laying the drainage pump in the water using the constructed inclined guideway, etc. Many tasks must be performed by many workers. Moreover, since these operations are extremely troublesome and difficult, the workability is poor and the rapid start of drainage after reaching the drainage or water supply / drainage site is hindered. In addition, since it requires a private power generator for operating the drainage pump and a control panel, it has a disadvantage in that the equipment is large and economically disadvantageous.

Therefore, in the Japanese Patent Application No. 4-33269, the applicant of the present invention allows an amphibious vehicle to self-propell and transport to the water's edge even if the drainage or water supply / drainage site and the ground around it are soft. The operation of lowering the amphibious vehicle from the platform of the vehicle, the operation of moving it from the lowered position to the waterside, the operation of launching the amphibious vehicle from the waterside and moving it to the water depth area where the drainage pump can operate. Stopping the amphibious vehicle in the water depth and then draining it, stopping the operation of the drainage pump after the drainage is completed, returning the amphibious vehicle to the water's edge, and moving it from here to the transport vehicle We proposed a drainage pump vehicle that can be configured to perform a series of operations, such as the operation to mount it on a remote, by remote control and improve workability.

This type of drainage pump vehicle drives a pair of left and right crawlers by a pair of hydraulic pumps to move an amphibious vehicle on the ground or at the bottom of the water (hereinafter referred to as “ground movement”), or on the water surface. It is configured to move in a levitating state (hereinafter referred to as levitating movement). When moving to the ground, the ground moving speed is limited to a low speed range of 5 to 10 km / H to improve running safety. That is, the drive output of the pair of hydraulic pumps is set to a value that allows the drainage pump vehicle to travel in the low speed region. However, since the thrust during levitation movement is obtained by moving the crawler protrusions protruding from the crawler, the crawlers can be moved in the same low speed region as during landing movement during levitation movement. Even if it is rotated, there is a problem that the prescribed thrust cannot be obtained. Therefore, it is required to limit the ground contact moving speed to a low speed area during ground contact movement to improve running safety, obtain the thrust required for the levitation movement during levitation movement, and move the drainage pump vehicle at a preferable levitation movement speed. It

[0006]

[Problems to be solved by the device]

 The problem to be solved is that if the ground contact speed is limited to a low speed range to improve running safety, the thrust required for levitation cannot be obtained.

[0007]

[Means for Solving the Problems]

 The present invention provides a self-propelled engine and a drainage pump for draining water outside the boat-type sealed body to an amphibious vehicle capable of running on soft ground with a boat-type sealed body. A vehicle in which a first hydraulic motor for transmitting power to a drive section of the amphibious vehicle using a hydraulic pump driven by the engine as a power transmission system for driving a vehicle and a drainage pump is provided as a drive source. It is composed of a hydraulic circuit for operation and a hydraulic circuit for operation of a drainage pump, in which a second hydraulic motor for transmitting power to the drive section of the drainage pump by using the hydraulic pump as a drive source is provided. A driving mode control device for a drainage pump vehicle provided with a switching valve for alternately opening and closing both hydraulic circuits, comprising a detector for detecting the landing state and the surface floating state of the amphibious vehicle. A control device that outputs a drive signal to the hydraulic pump based on the signal detected by this detector, and the drive output of the hydraulic pump according to the ground movement or floating movement of the drainage pump vehicle. By controlling to a suitable value, the ground contact speed was limited to the low speed range to improve running safety and the purpose of obtaining the thrust required for levitation movement was achieved.

[0008]

[Action]

 According to the present invention, the signal detected by the detector is input to the controller. When the landing condition of the amphibious vehicle is judged based on the input detection signal, the control unit outputs a low mode drive signal to the hydraulic pump. As a result, the landing speed of the drainage pump car is limited to the low speed range. On the other hand, when it is determined whether the amphibious vehicle is floating on the water surface based on the input detection signal, the controller outputs a high-mode drive signal to the hydraulic pump. This makes it possible to obtain the thrust required for the drainage pump vehicle to move up.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an example of a drainage pump vehicle to which the present invention is applied, and FIG. 2 is a system diagram of a vehicle driving power transmission system and a drainage pump driving power transmission system. In these drawings, 1 is an amphibious vehicle, which is composed of a boat-type sealed body 2 and a crawler vehicle equipped with a pair of left and right crawlers 3A and 3B capable of running on soft ground. The boat-type sealed body 2 has an engine 4, Two drainage pumps 5A, 5B, two hydraulic pumps 6A, 6B operated by the engine 4, and a hydraulic circuit 7 driven by these hydraulic pumps 6A, 6B are mounted in a watertight manner. The suction ports of the drainage pumps 5A and 5B penetrate the bottom of the boat-shaped closed body 2 in a watertight manner and open at the lower side of the bottom. The hydraulic pumps 6A and 6B are directly connected to the engine 4, which are variable displacement type bidirectional flows, and the regulator control devices 6A1 and 6B1 control the oil flow direction and the discharge oil amount or the oil flow direction and the swash plate. The tilt angle of is adjusted.

The hydraulic circuit 7 comprises two circuits forming a vehicle driving power transmission system of the amphibious vehicle 1, one set of vehicle driving hydraulic circuits 7A1 and 7A2, and two circuits constituting a drain pump operating power transmission system. It is composed of a pair of drain pump operating hydraulic circuits 7B1 and 7B2, the vehicle operating hydraulic circuit 7A1 is provided with a first hydraulic motor 8A, and the vehicle operating hydraulic circuit 7A2 is provided with a first hydraulic motor 8B. In addition, a second hydraulic motor 9A is provided in the drain pump operating hydraulic circuit 7B1, and a second hydraulic motor 9B is provided in the drain pump operating hydraulic circuit 7B2. The output shaft of the first hydraulic motor 8A is connected to the driving wheel of the one crawler 3A, and the output shaft of the first hydraulic motor 8B is connected to the driving wheel of the other crawler 3B. Switching between the vehicle operating hydraulic circuits 7A1 and 7A2 and the drainage pump operating hydraulic circuits 7B1 and 7B2 is performed by switching operation of electromagnetic, electromagnetic / hydraulic or electric switching valves 10A and 10B. The switching control between 10A and 10B, and the operation / stop and rotation speed control of the engine 4 are configured by a transmitter 11A and a controller 11B that receives a radio signal transmitted from the transmitter 11A and outputs a control signal. It is controlled remotely by a control device 11 that operates.

On the other hand, the oil flow direction of the hydraulic pumps 6A and 6B and the discharge oil amount or the oil flow direction and the tilt angle of the swash plate are detected by a detector 11C which is a water level sensor attached to the amphibious vehicle 1. It is controlled based on the landing signal or the water surface floating signal of the amphibious vehicle 1. That is, the detection signal input from the detector 11C to the controller 11B is input from the controller 11B to the determination circuit 11D. Here, if the input water level is a value from 0 to the draft of the amphibious vehicle 1, the landing state The landing signal is output to the regulator control devices 6A1 and 6B1, and the low mode drive signal is output from the regulator control devices 6A1 and 6B1 to the hydraulic pumps 6A and 6B. If the water level input to the judgment circuit 11D exceeds the draft of the amphibious vehicle 1, the water surface floating state is judged, and the water surface floating signal is output to the regulator control devices 6A1 and 6B1 to control the regulator. High mode drive signals are output from the devices 6A1 and 6B1 to the hydraulic pumps 6A and 6B. That is, when the determination circuit 11D determines the landing state based on the landing signal or the surface floating signal of the amphibious vehicle 1 detected by the detector 11C, the hydraulic pumps 6A, 6B are transmitted to the hydraulic pumps 6A, 6B via the regulator control devices 6A1, 6B1. When the low mode drive signal is output, the ground movement speed of the drainage pump vehicle is limited to the low speed range, and when the judgment circuit 11D judges that the water surface is floating, the hydraulic pump is operated via the regulator control devices 6A1 and 6B1. A high mode drive signal is output to 6A and 6B, and the thrust required for the drainage pump vehicle to levitate can be obtained.

With such a configuration, as shown in FIG. 3, the amphibious vehicle 1 loaded on the bed of the transportation vehicle 12 such as a truck is transported to near the drainage or water supply / drainage site. When it arrives near the site, a radio signal is transmitted from the transmitter 11A of the control device 11 of FIG. 2 to the controller 11B, and the switching valves 10A and 10B are closed circuit forming side of the vehicle operating hydraulic circuits 7A1 and 7A2. Shift to. Next, the engine 4 is started, and a rotation speed control wireless signal is transmitted to the engine 4 to increase the rotation speed of the engine to a predetermined rotation range, and the oil flow directions of the hydraulic pumps 6A and 6B are changed to the vehicle backward rotation side. Set to and gradually increase the discharge rate. As a result, the hydraulic pumps 6A and 6B of the hydraulic circuit 7 are activated to drive the first hydraulic motors 8A and 8B of the vehicle operating hydraulic circuits 7A1 and 7A2 to rotate the crawlers 3A and 3B in the backward direction. As a result, the amphibious vehicle 1 of FIG. 3 travels on its own and recedes straight using the inclined guide platform 13 as a guide, and descends from the bed of the transport vehicle 12. In this case, since the detection signal of the water level 0 detected by the detector 11C is input to the determination circuit 11D, the determination circuit 11D determines the landing state of the amphibious vehicle 1 and the hydraulic pump via the regulator control devices 6A1 and 6B1. A signal for driving in the low mode region indicated by Z1 in FIG. 4 is output to 6A and 6B, and the ground moving speed of the drainage pump vehicle is limited to the low speed region.

When the amphibious vehicle 1 descends to the ground, by transmitting a radio signal from the transmitter 11A of FIG. 2, the oil flow directions of the hydraulic pumps 6A and 6B are set to the vehicle forward rotation side, and the first The hydraulic motors 8A and 8B are driven to rotate the crawlers 3A and 3B in the forward direction. As a result, the amphibious vehicle 1 is self-propelled and advances to the water's edge as shown in FIGS. 5 (A) and 5 (B). In this case as well, the detection signal of the water level 0 detected by the detector 11C is input to the determination circuit 11D in the same manner as described above, so the determination circuit 11D determines the landing state of the amphibious vehicle 1 and the regulator control device 6A1, A signal for driving the hydraulic pumps 6A and 6B in the low mode region shown by Z1 in FIG. 4 is output via 6B1, and the ground contact moving speed of the drainage pump vehicle is limited to the low speed region.

Once the amphibious vehicle 1 stops at the water's edge, a drain hose (not shown) is appropriately connected to the discharge ports 50 of the drain pumps 5A and 5B. When the connection of the drainage hose is completed, the amphibious vehicle 1 is self-propelled forward by the same operation as described above to be launched as shown in FIG. 5 (C). In this case, since the water level is smaller than the draft of the amphibious vehicle 1, and the amphibious vehicle 1 is landing on the bottom of the water, the water level detected by the detector 11C, that is, the detection signal of the water level of the amphibious vehicle 1 up to the draft. Is inputted to the judgment circuit 11D, the judgment circuit 11D judges the landing condition of the amphibious vehicle 1, and the hydraulic pumps 6A, 6B are controlled by the regulator control devices 6A1, 6B1 to the low mode indicated by Z1 in FIG. The signal to drive in the area is output, and the ground movement speed of the drainage pump car is limited to the low speed area. That is, the drainage pump vehicle moves forward while contacting the bottom of the water at low speed.

When the forward movement is continued while landing on the bottom of the water, and the water level becomes higher than the floating draft level of the amphibious vehicle 1 as shown in FIG. 5D, the buoyancy of the boat-shaped closed body 2 is increased. Therefore, the amphibious vehicle 1 floats. As a result, the water level detected by the detector 11C, that is, the detection signal of the water level exceeding the draft of the amphibious vehicle 1 is input to the determination circuit 11D, so the determination circuit 11D determines the water surface floating state of the amphibious vehicle 1, A signal for driving the hydraulic pumps 6A and 6B in the high mode region indicated by Z2 in FIG. 4 is output to the hydraulic pumps 6A and 6B via the regulator control devices 6A1 and 6B1, and the crawler protrusions 3a and 3b of the crawlers 3A and 3B (see FIG. 6). To obtain a thrust force for moving the amphibious vehicle 1 forward while levitating. If the drainage pumps 5A, 5B reach the operable area by moving the water surface in a floating state, the switching valves 10A, 10B are shifted to the closed circuit forming side of the drainage pump operating hydraulic circuits 7B1, 7B2. Let As a result, the amphibious vehicle 1 stops at the water surface, and the second hydraulic motors 9A, 9B of the drain pump operating hydraulic circuits 7B1, 7B are driven. As a result, the drainage pumps 5A and 5B are activated to start draining. Also in this case, since the signal for driving in the high mode region indicated by Z2 in FIG. 4 is output to the hydraulic pumps 6A and 6B, drainage is performed by the high speed operation of the drainage pumps 5A and 5B. After the drainage is completed, the operation is completed by placing the amphibious vehicle 1 on the bed of the transportation vehicle 12 by the reverse operation.

As described above, according to the present invention, the signal detected by the detector 11C is input to the controller 11B. When the landing state of the amphibious vehicle 1 is judged based on the input detection signal, the controller 11B outputs a low mode drive signal to the hydraulic pumps 6A and 6B to change the ground movement speed of the drainage pump vehicle to the low speed range. When the water surface floating state of the amphibious vehicle 1 is determined based on the detection signal input from the detector 11C, the controller 11B outputs a high mode drive signal to the hydraulic pumps 6A and 6B, Since the thrust required for the drainage pump truck to levitate can be obtained, the ground contact velocity is limited to the low-speed region to improve running safety, and the thrust required for the levitating move is obtained during the levitating move. It becomes possible to move the drainage pump car at a preferable floating movement speed.

[0017]

[Effect of device]

 As described above, according to the present invention, the driving output of the hydraulic pump is controlled to a suitable value in accordance with the ground movement or the levitating movement of the drainage pump vehicle, and the ground movement speed is limited to the low speed range to ensure traveling safety. It is possible to move the drainage pump vehicle at a preferable levitation movement speed while improving the property and obtaining thrust required for levitation movement.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a drainage pump vehicle.

FIG. 2 is a system diagram of a power transmission system.

FIG. 3 is a schematic side view showing a state in which an amphibious vehicle is loaded on a bed of a transportation vehicle.

FIG. 4 is a characteristic diagram showing operation modes of the hydraulic pump.

FIG. 5 is an explanatory view showing a moving state of the drainage pump vehicle.

FIG. 6 is a partially enlarged perspective view showing a crawler protrusion.

[Explanation of symbols]

 1 Amphibious vehicle 2 Boat type closed body 4 Engine 5A, 5B Drainage pump 6A, 6B Hydraulic pump 7 Hydraulic circuit 7A1, 7A2 Vehicle operating hydraulic circuit 7B1, 7B2 Drain pump operating hydraulic circuit 8A, 8B First hydraulic motor 9A, 9B 2nd hydraulic motor 10A, 10B switching valve 11 control device 11A transmitter 11B controller 11C detector

Claims (1)

[Scope of utility model registration request] 1. An amphibious vehicle equipped with a boat-type sealed body and capable of running on soft ground, equipped with a self-propelled engine and a drainage pump for draining water outside the boat-type sealed body. A vehicle driving power transmission system and a drainage pump driving power transmission system using a hydraulic pump operated by the engine as a drive source for transmitting vehicle power to the drive unit of the amphibious vehicle. The hydraulic circuit is composed of a hydraulic circuit and a hydraulic circuit for operating a drainage pump, in which a second hydraulic motor that transmits power to the drive section of the drainage pump by using the hydraulic pump as a drive source is interposed, and these hydraulic circuits are alternately arranged. A driving mode control device for a drainage pump vehicle, which is provided with a switching valve for opening and closing, and a detector for detecting the landing state and the surface floating state of the amphibious vehicle, A controller for outputting a drive signal to the hydraulic pump based on a signal detected by the detector of 1., and a driving mode controller for a drainage pump vehicle.