JPH0655865U - Drainage pump car - Google Patents

Abstract

(57) [Abstract] [Purpose] Small low-power engines 14, 17A, 17B
Can be installed to reduce the total weight of the amphibious vehicle 11 and enable the amphibious vehicle drive system CD to operate even if a failure occurs in the drainage pump drive system PD. [Structure] Amphibious vehicle drive system CD with self-propelled engine 1
4 and a hydraulic pump 1 operated by this engine
5A and 15B, and hydraulic motors 16A and 16B that are driven by the hydraulic pumps 15A and 15B to transmit power to the amphibious vehicle 11 crawlers 13A and 13B. The drainage pump drive system PD is a drainage engine 18A and a speed reducer. 19A and drainage engine 18B and speed reducer 19B
It is composed by.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drainage pump vehicle used for emergency drainage in the event of water disaster, drainage for civil engineering temporary construction work, or water supply and 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.

By the way, in this type of drainage pump vehicle, one self-propelled engine is used to operate the amphibious vehicle and the drainage pump. That is, as shown in FIG. 3, the hydraulic pumps 2 and 3 are operated by the self-propelled engine 1 and the electromagnetic or electric switching valve 4 is switched, so that the traveling motor 6 or the traveling motor 6 is operated from one hydraulic pump 2. By supplying pressure oil to the drain pump driving hydraulic motor 8 to operate it and switching the electromagnetic or electric switching valve 5, the other hydraulic pump 3 drives the traveling motor 7 or the drain pump driving hydraulic motor. It is designed so that pressure oil is supplied to 9 for operation. Therefore, by driving the self-propelled engine 1 and switching the switching valves 4 and 5 to the operating sides of the traveling motors 6 and 7, the amphibious vehicle is driven, and the self-propelled engine 1 is switched to the operating state. By switching the valves 4 and 5 to the operating side of the drain pump driving hydraulic motors 8 and 9, the drain pump is operated to perform drainage work. In addition, 10 shows a charge pump.

As described above, the drainage pump drive system includes the self-propelled engine 1, the hydraulic pumps 2 and 3 operated by the engine 1, and the drainage pump drive system driven by the hydraulic pumps 2 and 3. Since it is composed of the hydraulic motors 8 and 9 for driving the drainage pump that transmits power to the main shaft, the driving efficiency of the drainage pump drive system is low and the driving power required for the amphibious vehicle drive system is low. And it becomes about twice as strong. Therefore, a large high-power engine must be mounted as the self-propelled engine 1 and the total weight of the vehicle becomes large. In addition, if a failure occurs in the drainage pump drive system, it will also interfere with the operation of the amphibious vehicle drive system, hindering the amphibious vehicle from running, and performing drainage work while the vehicle is floating on the water surface. There are some drawbacks that are impossible to do.

[0007]

[Problems to be solved by the device]

 The problem to be solved is that the drive efficiency of the drainage pump drive system is low, so a large high-power engine must be installed, and the total weight of the vehicle becomes large. This also hinders the operation of the amphibious vehicle drive system, hinders the travel of the amphibious vehicle, and makes drainage work impossible while the vehicle is floating on the water surface.

[0008]

[Means for Solving the Problems]

 The present invention relates to a drainage pump vehicle equipped with a self-propelled engine and a drainage pump for draining water outside the boat-shaped sealed body, in an amphibious vehicle capable of running on soft ground with a boat-shaped sealed body. The amphibious vehicle drive system includes the self-propelled engine, a hydraulic pump operated by the engine, and a hydraulic motor driven by the hydraulic pump to transmit power to the drive section of the amphibious vehicle. The drainage pump drive system is composed of a drainage engine and a speed reducer, so that a small, low-power engine can be installed to reduce the total weight of the vehicle, and the drainage pump drive system The objective was to enable operation of the amphibious vehicle drive system even if a failure occurs in the vehicle.

[0009]

[Action]

 According to the present invention, the self-propelled engine can be specified only for driving the amphibious vehicle, so that a small low-power engine can be mounted. In addition, by configuring the drainage pump drive system with a drainage engine and a speed reducer, the drive efficiency of the drainage pump drive system can be increased and the power required for operation can be kept low, so a compact low-power drainage engine is installed. it can. Furthermore, adverse effects on the amphibious vehicle drive system due to a failure of the drainage pump drive system are avoided.

[0010]

【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 configuration diagram of an amphibious vehicle drive system and a drainage pump drive system. The amphibious vehicle consists of a boat-type hermetically sealed body 12 and a pair of left and right crawlers 13A and 13B capable of traveling on soft ground. The boat-type hermetically sealed body 12 has an amphibious vehicle drive system CD. And the drainage pump drive system PD is installed. The amphibious vehicle drive system CD includes a self-propelled engine 14, two hydraulic pumps 15A and 15B operated by the engine 14, and a drive unit of the amphibious vehicle 11 driven by these hydraulic pumps 15A and 15B, that is, left and right 1 The drainage pump drive system PD is composed of hydraulic motors 16A and 16B for individually transmitting power to the pair of crawlers 13A and 13B. The drainage engine 18B and the speed reducer 19B are provided, and the suction ports of the drainage pumps 17A and 17B penetrate through the bottom of the boat-shaped hermetically sealed body 12 and open at the lower side of the bottom. Prevent inhalation of foreign matter in water. Further, the hydraulic pumps 15A and 15B are directly connected to the engine 14, and these are a variable displacement type bidirectional flow, and the oil flow direction and the discharge oil amount are adjusted by a regulator. The output shaft of the hydraulic motor 16A is connected to the drive side wheel of the one crawler 13A, and the output shaft of the hydraulic motor 16B is connected to the drive side wheel of the other crawler 13B. Furthermore, the operation / stop and engine speed control of the engines 14, 18A, 18B and the oil flow direction control of the hydraulic pumps 15A, 15B are controlled by a transmitter (not shown) and a radio signal transmitted from the transmitter A. It is adapted to be remotely controlled by a control device which is constituted by a reception controller which receives and outputs a control signal. The drainage engines 18A, 18B and the speed reducers 19A, 19B are placed above the draft level H when the vehicle is floating. In the figure, 20 indicates a charge pump.

With such a configuration, the self-propelled engine 14 can be specified only for driving the amphibious vehicle 11, and therefore, in Japanese Patent Application No. 4-33269 (hereinafter referred to as a comparative example) shown in FIG. It does not require a large high-power engine such as the self-propelled engine 1 mounted in the drainage pump car, but can mount a small low-power engine, so the total weight of the vehicle is reduced. Further, by configuring the drainage pump drive system PD by the drainage engines 18A, 18B and the speed reducers 19A, 19B, the self-propelled engine 1 and the hydraulic pump 2 operated by the engine 1 as in the comparative example. , 3 and a drainage engine drive system composed of drainage pump drive hydraulic motors 8 and 9 that are driven by the hydraulic pumps 2 and 3 to transmit power to the main shaft of the drainage pump. As a result, the power required for operation can be suppressed to a small level, so that it is possible to mount small-sized low output drainage engines 18A and 18B and speed reducers 19A and 19B. Therefore, the total weight of the vehicle does not increase as in the comparative example. Further, since the drainage engines 18A and 18B and the speed reducers 19A and 19B are installed above the draft H when the vehicle is floating, it is not necessary to have a waterproof structure.

On the other hand, even if a failure occurs in the drainage pump drive system PD, the amphibious vehicle drive system CD can be operated independently, which hinders the amphibious vehicle 11 from traveling on the ground and floating on the water surface. Never come.

In the above-described embodiment, the configuration in which the two drainage pumps 17A and 17B are mounted has been described, but the configuration in which one drainwater pump or three or more drainage pumps are mounted may be used.

[0014]

[Effect of device]

 As described above, according to the present invention, the self-propelled engine can be specified only for the operation of the amphibious vehicle, so that a small low-power engine can be mounted and the drainage pump drive system can be configured by the drainage engine and the reducer. With this configuration, the driving efficiency of the drainage pump drive system is increased, the power required for operation is kept low, and a compact low-power drainage engine can be installed, so the total weight of the vehicle can be reduced. In addition, even if a failure occurs in the drainage pump drive system, the amphibious vehicle drive system can be operated independently, so there is no hindrance to the amphibious vehicle's ground traveling and surface floating traveling.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a drainage pump vehicle to which the present invention is applied.

FIG. 2 is a configuration diagram of an amphibious vehicle drive system and a drainage pump drive system.

FIG. 3 is a configuration diagram of an amphibious vehicle drive system and a drainage pump drive system of a comparative example.

[Explanation of symbols]

 11 Amphibious Vehicle 12 Boat Type Sealed Body 13A, 13B Crawler (Drive Unit for Amphibious Vehicle) 14 Self-propelled Engine 15A, 15B Hydraulic Pump 16A, 16B Hydraulic Motor 17A, 17B Drainage Pump 18A, 18B Drainage Engine 19A, 19B Reducer CD Amphibious vehicle drive system PD Drain pump drive system

Claims (1)

[Scope of utility model registration request] 1. A drainage pump vehicle equipped with a self-propelled engine and a drainage pump for draining the water outside the boat-shaped closed body, to an amphibious vehicle capable of running on soft ground, which has a boat-shaped closed body. The amphibious vehicle drive system includes the self-propelled engine, a hydraulic pump operated by the engine, and a hydraulic motor driven by the hydraulic pump to transmit power to a drive unit of the amphibious vehicle. A drainage pump vehicle having a drive system including a drainage engine and a speed reducer.