Parallel type power output structure of special vehicle

Abstract

The application provides a parallel type special vehicle power output structure and belongs to the technical field of special vehicles. It comprises a parallel type power output module. The parallel type power output module comprises at least two groups of power output devices. The power output device comprises a power taking mechanism and a power output mechanism connected with the power taking mechanism. The power output mechanisms in the at least two groups of power output devices can output power in parallel through a power combining mechanism. The power taking mechanism in the power output device can output power through the power output mechanism after obtaining power from the working vehicle. The power output mechanisms in the two power output devices can output power in parallel through the power combining mechanism, so as to solve the problem of insufficient chassis power of various special vehicles and solve the problems of small specifications and insufficient performance of the selected special equipment and small number of configurable special equipment caused by insufficient chassis power of the single function special vehicle.

Description

Technical Field

[0001] This invention belongs to the field of special vehicle technology and relates to a parallel power output structure for special vehicles. Background Technology

[0002] Currently, most special-purpose vehicles use various light and heavy-duty vehicle chassis as the main modification body. A large part of these special-purpose vehicles use vehicle power take-off (PTO) to provide power to the equipment they carry. The general practice for this PTO method is to install a PTO on the vehicle's transmission system and add a hydraulic pump to the PTO to convert the mechanical energy of the vehicle's engine into hydraulic power. Alternatively, the PTO can be connected to the mechanical equipment through the transmission system to realize the power transmission of mechanical energy.

[0003] Under current technological conditions, the power take-off method of special-purpose vehicles has the following disadvantages: 1. Compared to special-purpose vehicles, the inherent engine models, output power, output torque, and other parameters of various automobile chassis often have some inherent deficiencies. Their engine configuration standards are mainly designed based on the original purpose of the vehicle, and there is often a certain gap compared with the power requirements of special-purpose vehicles; 2. Some special-purpose vehicles require both a small and light chassis, and also require the chassis to provide high power to its special equipment to meet its special purpose, but this is impossible for light-duty chassis vehicles; 3. For certain operating scenarios, such as fire... In disaster relief operations such as flood control, drainage, and earthquake relief, many specialized vehicles often gather at the same rescue point. Some rescue equipment, such as long-distance water supply vehicles, consists of two or more specialized vehicles. One of them, as a water supply vehicle, needs to take power from the chassis around the clock, while the other, as a hose laying vehicle, does not need to take power around the clock. For these specialized vehicles that do not need to take power or do not need to take power around the clock, their power take-off systems are basically idle after completing their designated tasks, such as after the hose laying vehicle finishes laying pipes. Meanwhile, other specialized vehicles that need to take power around the clock cannot obtain sufficient power due to insufficient chassis power, resulting in a great deal of idle resources and waste.

[0004] For example, a Chinese patent discloses a lightweight, highly mobile, long-range water supply firefighting method and system [Application No.: 201510461917.6], which includes the following steps: 1. Setting up a pump fire truck, a hose-laying fire truck, and a water cannon fire truck; parking the pump fire truck around the water source at a distant fire scene; parking the water cannon fire truck at the site requiring water supply, and parking the hose-laying fire truck next to the pump fire truck; 2. The hose-laying fire truck lays the hose between the pump fire truck and the water cannon fire truck; one end of the hose... 1. Connect the floating submersible pump to the pump fire truck, and connect the other end to the water intake pipe of the water cannon fire truck; 2. Place the floating submersible pump into the water source, and continuously transport water to the water cannon fire truck through the water hose. The water is divided into two paths through the vehicle-mounted fire pump: one path is shot out through the fire cannon, and the other path is shot out through the water gun connected to the outlet pipe; 3. After the fire is extinguished, the pump fire truck empties the water in the water hose; the water hose laying fire truck retracts the water hose by mobile means; 4. After the operation is completed, drain the remaining water in the pipeline system of the water-spraying fire truck;

[0005] Although the application involves the linkage of multiple work vehicles, it still cannot achieve the parallel output of power from multiple work vehicles. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a parallel power output structure for special-purpose vehicles.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A parallel power output structure for a special-purpose vehicle includes a parallel power output module. The parallel power output module includes at least two sets of power output devices. Each power output device includes a power take-off mechanism and a power output mechanism connected to the power take-off mechanism. The power output mechanisms in the at least two sets of power output devices can output power in parallel through a power merging mechanism.

[0009] In this embodiment, the power take-off mechanism in the power output device can output power through the power output mechanism after obtaining power from the work vehicle. The power output mechanisms in the two power output devices can output power in parallel through the power merging mechanism to solve the problem of insufficient chassis power that is common in various special vehicles. It can also solve the problem that single-function special vehicles have insufficient chassis power, resulting in small specifications and models of selected special equipment, insufficient performance, and a small number of configurable special equipment.

[0010] Secondly, it can also solve the problem of idle engine power in special vehicle chassis that do not require power take-off or do not require power take-off at all times, thereby improving resource utilization and reducing the need for additional resources.

[0011] In the above-mentioned parallel special vehicle power output structure, the power output mechanism includes a hydraulic pump, a hydraulic oil tank and a control valve for power output. The hydraulic pump is connected to the power take-off mechanism, the oil outlet of the hydraulic pump is connected to the control valve, the oil return of the hydraulic pump is connected to the hydraulic oil tank, and the hydraulic oil tank is connected to the control valve.

[0012] The power merging mechanism includes two inlet and outlet hoses and two sets of plug-and-play quick connectors. The two ends of the inlet and outlet hoses are connected to control valves in two power output mechanisms via the plug-and-play quick connectors, respectively. The hydraulic pump outputs hydraulic oil from the hydraulic tank to the control valves. The control valves select whether to supply hydraulic oil to a dedicated device or to another power output mechanism for power merging via the plug-and-play quick connectors and inlet / outlet hoses. Hydraulic oil from the dedicated device can flow directly back to the hydraulic tank via the control valves, while hydraulic oil from the other power output mechanism can flow back to the hydraulic tank via the plug-and-play quick connectors, inlet / outlet hoses, and control valves.

[0013] In the aforementioned parallel-type power output structure for special-purpose vehicles, a lightweight chassis mounted on the special-purpose vehicle is also included. The power output device is installed on the lightweight chassis, and the power take-off mechanism is connected to the vehicle's transmission system. The lightweight chassis is equipped with at least one set of plug-and-play quick connectors. Each set of plug-and-play quick connectors includes an input port and an output port. The inner ends of the input and output ports are connected to a control valve via hydraulic oil lines, respectively. Plug-and-play quick connectors on two lightweight chassis are connected via two inlet and outlet hoses. Since lightweight chassis are generally mounted on lightweight special-purpose vehicles, and lightweight special-purpose vehicles have relatively low power, installing a power output device on a lightweight chassis allows for parallel connection of multiple lightweight special-purpose vehicles, solving the problem of insufficient power in lightweight chassis and addressing issues related to the number, model, specifications, and performance of special-purpose equipment that can be configured due to insufficient power.

[0014] In the aforementioned parallel special-purpose vehicle power output structure, at least one special-purpose device is installed on the lightweight chassis. The special-purpose vehicle includes a non-long-term power take-off work vehicle for power output, a single-function work vehicle that can be used to receive and output power, and a multi-functional work vehicle for receiving power.

[0015] By combining non-long-term power take-off vehicles and single-function special-purpose vehicles, the problem of small-sized and underperforming special-purpose equipment due to insufficient chassis power in single-function special-purpose vehicles can be solved through power integration. It can also solve the problem of idle resources of non-long-term power take-off vehicles or non-power take-off vehicles.

[0016] By combining multi-functional special-purpose vehicles with non-long-term power take-off (PTO) vehicles, non-PTO vehicles, and / or single-function special-purpose vehicles, the problem of limited special equipment that can be configured on lightweight chassis due to insufficient power can be solved, enabling multiple special-purpose devices on the multi-functional special-purpose vehicle to work simultaneously.

[0017] In the aforementioned parallel special vehicle power output structure, at least one special equipment for non-long-term operation and a set of plug-and-play quick connectors are installed on the light chassis of the non-long-term power take-off vehicle. The oil inlet and return lines of the special equipment are both connected to the control valve, and when the special equipment stops working, power can be output to the outside through the control valve and the plug-and-play quick connectors.

[0018] In the aforementioned parallel special-purpose vehicle power output structure, the single-function special-purpose vehicle is equipped with at least one special-purpose device with high power requirements and at least one set of plug-and-play quick connectors on its light chassis. The oil inlet and return lines of the special-purpose device are both connected to a control valve. When the special-purpose device is working, power input can be received through at least one set of plug-and-play quick connectors and power can be input to the special-purpose device through the control valve. When the special-purpose device stops working, power can be output to the outside through the control valve and at least one set of plug-and-play quick connectors.

[0019] In the aforementioned parallel special vehicle power output structure, the lightweight chassis of the multi-functional special vehicle is equipped with at least two special devices and several plug-and-play quick connectors. The number of plug-and-play quick connectors is equal to the number of special devices minus one. One of the special devices is connected to a control valve, and the remaining special devices are connected to the plug-and-play quick connectors. The special devices connected to the plug-and-play quick connectors need to receive power input through the plug-and-play quick connectors to operate.

[0020] In the aforementioned parallel power output structure for a special-purpose vehicle, the hydraulic pump, hydraulic tank, power take-off mechanism, and plug-and-play quick connector are all located on the underside of the light-duty chassis or the underside of the special-purpose vehicle, while the control valve is installed on the upper side of the light-duty chassis. Placing the hydraulic pump, hydraulic tank, power take-off mechanism, and plug-and-play quick connector on the underside of the light-duty chassis or the underside of the special-purpose vehicle reduces the space occupied on the light-duty chassis, and placing the control valve on the upper side of the light-duty chassis facilitates manual operation.

[0021] In the aforementioned parallel-type special vehicle power output structure, the power take-off mechanism includes a power take-off unit.

[0022] In the aforementioned parallel-type special vehicle power output structure, the oil inlet and outlet hoses include a high-pressure oil inlet pipe and a low-pressure oil return pipe.

[0023] Compared with existing technologies, the advantages of this invention are:

[0024] 1. The power take-off mechanism in the power output device can output power through the power output mechanism after obtaining power from the work vehicle. The power output mechanisms in the two power output devices can output power in parallel through the power merging mechanism to solve the problem of insufficient chassis power that is common in various special vehicles. It can also solve the problem that the selected special equipment is small in size and performance and the number of special equipment that can be configured is small due to insufficient chassis power in single-function special vehicles. It can also solve the problem of idle chassis engine power in special vehicles that do not have power take-off requirements or do not have full-time power take-off requirements, thereby improving resource utilization and reducing the need for additional resources.

[0025] 2. The hydraulic pump can output hydraulic oil from the hydraulic oil tank to the control valve. The control valve can select whether to supply hydraulic oil to special equipment or output it to another power output mechanism for power combination through a plug-and-play quick connector and inlet / outlet hoses. The hydraulic oil at the special equipment can flow directly back to the hydraulic oil tank through the control valve, and the hydraulic oil at the other power output mechanism can flow back to the hydraulic oil tank through the plug-and-play quick connector, inlet / outlet hoses and control valve.

[0026] 3. Since light-duty chassis are generally installed on light-duty special vehicles, and light-duty special vehicles have relatively low power, installing a power take-off device on a light-duty chassis can solve the problem of insufficient power of the light-duty chassis by combining and connecting multiple light-duty special vehicles in parallel. This also solves the problems of insufficient power in terms of the number, model, specifications and performance of special equipment that can be configured.

[0027] 4. By combining non-long-term power take-off (PTO) vehicles and single-function special-purpose vehicles, the problem of insufficient chassis power in single-function special-purpose vehicles leading to small-sized and underperforming specialized equipment can be solved through power integration. It can also solve the problem of idle resources in non-long-term power take-off (PTO) or non-PTO vehicles. By combining multi-functional special-purpose vehicles with non-long-term power take-off (PTO) vehicles, non-PTO vehicles, and / or single-function special-purpose vehicles, the problem of insufficient power in lightweight chassis with limited specialized equipment can be solved, enabling multiple specialized equipment on multi-functional special-purpose vehicles to work simultaneously.

[0028] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0029] Figure 1 This is a framework diagram of a parallel power output module;

[0030] Figure 2 This is a schematic diagram of the specific structure of a non-long-duration power take-off vehicle;

[0031] Figure 3 This is a simplified structural diagram of a single-function special-purpose vehicle;

[0032] Figure 4 This is a simplified structural diagram of a multi-functional special-purpose vehicle;

[0033] Figure 5 This is a schematic diagram of the specific structure of the parallel power output module;

[0034] Figure 6 This is a simplified structural diagram of a non-long-duration power take-off vehicle and a single-function special-purpose vehicle with parallel power.

[0035] Figure 7 This is a connection diagram of a non-long-term power take-off vehicle and a multi-functional special-purpose vehicle.

[0036] In the diagram, 1 is the power output mechanism, 2 is the power merging mechanism, 3 is the hydraulic pump, 4 is the hydraulic oil tank, 5 is the control valve, 6 is the inlet and outlet hoses, 7 is the plug-and-play quick connector, 8 is the light chassis, 9 is the special equipment, 10 is the non-long-term power take-off vehicle, 11 is the single-function special vehicle, 12 is the multi-functional special vehicle, and 13 is the power take-off unit. Detailed Implementation

[0037] like Figure 1 As shown, a parallel power output structure for a special-purpose vehicle includes a parallel power output module. The parallel power output module includes at least two sets of power output devices. Each power output device includes a power take-off mechanism and a power output mechanism 1 connected to the power take-off mechanism. The power output mechanisms 1 in the at least two sets of power output devices can output power in parallel through a power merging mechanism 2.

[0038] In this embodiment, the power take-off mechanism in the power output device can output power through the power output mechanism 1 after obtaining power from the work vehicle. The power output mechanisms 1 in the two power output devices can output power in parallel through the power merging mechanism 2 to solve the problem of insufficient chassis power that is common in various special vehicles. It can also solve the problem that single-function special vehicles have insufficient chassis power, resulting in small specifications and models of selected special equipment, insufficient performance, and a small number of special equipment that can be configured.

[0039] Secondly, it can also solve the problem of idle engine power in special vehicle chassis that do not require power take-off or do not require power take-off at all times, thereby improving resource utilization and reducing the need for additional resources.

[0040] Specifically, the power output mechanism 1 includes a hydraulic pump 3, a hydraulic oil tank 4, and a control valve 5 for power output. The hydraulic pump 3 is connected to the power take-off mechanism, the oil outlet of the hydraulic pump 3 is connected to the control valve 5, the oil return of the hydraulic pump 3 is connected to the hydraulic oil tank 4, and the hydraulic oil tank 4 is connected to the control valve 5.

[0041] The power merging mechanism 2 includes two inlet and outlet hoses 6 and two sets of plug-and-play quick connectors 7. The two ends of the two inlet and outlet hoses 6 are connected to the control valves 5 in the two power output mechanisms 1 through the plug-and-play quick connectors 7.

[0042] Hydraulic pump 3 can output hydraulic oil from the hydraulic oil tank to the control valve. The control valve can select whether to supply hydraulic oil to special equipment or to another power output mechanism for power combination through plug-and-play quick connector 7 and inlet / outlet hoses. Hydraulic oil at the special equipment can flow directly back to the hydraulic oil tank through the control valve, while hydraulic oil at the other power output mechanism can flow back to the hydraulic oil tank through plug-and-play quick connector 7, inlet / outlet hoses 6 and control valve.

[0043] Preferably, the power output mechanism 1 further includes a hydraulic generator, the oil inlet and return lines of which are connected to the control valve and the hydraulic oil tank, respectively. The hydraulic generator can supply power to the equipment when needed, and two hydraulic generators can be connected in series via cables to provide a higher output voltage.

[0044] Combination Figure 1 and Figure 5 As shown, it also includes a light-duty chassis 8 installed on a special-purpose vehicle. The power take-off device is mounted on the light-duty chassis 8, and the power take-off mechanism is connected to the vehicle's transmission system. The light-duty chassis 8 is equipped with at least one set of plug-and-play quick connectors 7. Each set of plug-and-play quick connectors 7 includes an input port and an output port. The inner ends of the input port and the output port are connected to a control valve 5 via hydraulic oil lines, respectively. The plug-and-play quick connectors 7 on two light-duty chassis 8 are connected by two inlet and outlet hoses 6. Since the light-duty chassis is generally installed on light-duty special-purpose vehicles, and light-duty special-purpose vehicles have relatively low power, installing a power take-off device on the light-duty chassis can solve the problem of insufficient power of the light-duty chassis by combining and connecting multiple light-duty special-purpose vehicles in parallel, and also solve the problems of insufficient power in terms of the number, model, specifications, and performance of special-purpose equipment that can be configured.

[0045] Preferably, combined with Figures 2-7 As shown, at least one special-purpose device 9 is installed on the light chassis 8. The special-purpose vehicle includes a non-long-term power take-off vehicle 10 for power output, a single-function special-purpose vehicle 11 for receiving and outputting power, and a multi-functional special-purpose vehicle 12 for receiving power.

[0046] Specifically, this also includes non-power-take-off (PTO) work vehicles.

[0047] By combining the non-long-term power take-off vehicle 10 and the single-function special-purpose vehicle 11, the problem of insufficient chassis power in the single-function special-purpose vehicle leading to small specifications and insufficient performance of the selected special-purpose equipment can be solved through power merging. It can also solve the problem of idle resources of the non-long-term power take-off vehicle 10 or the non-power take-off vehicle. By combining the multi-functional special-purpose vehicle 12 with the non-long-term power take-off vehicle 10, the non-power take-off vehicle and / or the single-function special-purpose vehicle 11, the problem of insufficient power leading to a small number of special-purpose equipment that can be configured on the light chassis can be solved, so that multiple special-purpose equipment on the multi-functional special-purpose vehicle 12 can work simultaneously.

[0048] Specifically, combining Figure 3 As shown, the lightweight chassis 8 of the non-long-term power take-off vehicle 10 is equipped with at least one special equipment 9 for non-long-term operation and a set of plug-and-play quick connectors 7. The oil inlet and return lines of the special equipment 9 are both connected to the control valve 5, and when the special equipment 9 stops working, power can be output to the outside through the control valve 5 and the plug-and-play quick connectors 7.

[0049] Specifically, combining Figure 4 As shown, the single-function special vehicle 11 is equipped with at least one special device 9 with high power requirements and at least one set of plug-and-play quick connectors 7 on its light chassis 8. The oil inlet and return lines of the special device 9 are connected to the control valve 5. When the special device 9 is working, it can receive power input through at least one set of plug-and-play quick connectors 7 and input power to the special device 9 through the control valve 5. When the special device 9 stops working, it can output power to the outside through the control valve 5 and at least one set of plug-and-play quick connectors 7.

[0050] Specifically, combining Figure 5 As shown, the lightweight chassis 8 of the multi-functional special-purpose vehicle 12 is equipped with at least two special devices 9 and several plug-and-play quick connectors 7. The number of plug-and-play quick connectors 7 is equal to the number of special devices 9 minus one. One of the special devices 9 is connected to the control valve 5, and the other special devices 9 are connected to the plug-and-play quick connectors 7. The special devices 9 connected to the plug-and-play quick connectors 7 need to receive power input through the plug-and-play quick connectors 7 to work.

[0051] Preferably, the hydraulic pump 3, hydraulic oil tank 4, power take-off mechanism, and plug-and-play quick connector 7 are all located on the underside of the light-duty chassis 8 or the underside of the special-purpose vehicle, while the control valve 5 is installed on the upper side of the light-duty chassis 8. Placing the hydraulic pump 3, hydraulic oil tank 4, power take-off mechanism, and plug-and-play quick connector 7 on the underside of the light-duty chassis 8 or the underside of the special-purpose vehicle reduces the space occupied on the light-duty chassis, and placing the control valve on the upper side of the light-duty chassis facilitates manual operation.

[0052] Specifically, the power take-off mechanism includes a power take-off unit 13.

[0053] Specifically, the inlet and outlet hoses 6 include a high-pressure inlet hose and a low-pressure return hose.

[0054] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0055] Although this paper frequently uses terms such as power take-off mechanism 1, power merging mechanism 2, hydraulic pump 3, hydraulic oil tank 4, control valve 5, inlet and outlet hoses 6, plug-and-play quick connector 7, light chassis 8, special equipment 9, non-long-term power take-off vehicle 10, single-function special vehicle 11, multi-functional special vehicle 12, power take-off unit 13, etc., these terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any kind of additional limitation would be contrary to the spirit of the invention.

Claims

1. A parallel power output structure for special-purpose vehicles, comprising a parallel power output module, characterized in that, The parallel power output module includes at least two sets of power output devices. Each power output device includes a power take-off mechanism and a power output mechanism (1) connected to the power take-off mechanism. The power output mechanism (1) in the at least two sets of power output devices can output power in parallel through a power merging mechanism (2). The power output mechanism (1) includes a hydraulic pump (3), a hydraulic oil tank (4), and a control valve (5) for power output. The hydraulic pump (3) is connected to the power take-off mechanism. The oil outlet of the hydraulic pump (3) is connected to the control valve (5). The oil return of the hydraulic pump (3) is connected to the hydraulic oil tank (4). The hydraulic oil tank (4) is connected to the control valve (5). The power merging mechanism (2) includes two inlet and outlet hoses (6) and two sets of plug-and-play quick connectors (7). The two ends of the two inlet and outlet hoses (6) are connected to the control valves (5) in the two power output mechanisms (1) through the plug-and-play quick connectors (7). It also includes a light chassis (8) installed on a special vehicle. The power output device is set on the light chassis (8). The power take-off mechanism is connected to the vehicle transmission system of the special vehicle. The light chassis (8) is provided with at least one set of plug-and-play quick connectors (7). Each set of plug-and-play quick connectors (7) includes an input port and an output port. The inner ends of the input port and the output port are connected to the control valve (5) through hydraulic oil lines, respectively. The plug-and-play quick connectors (7) on the two light chassis (8) are connected through two inlet and outlet hoses (6). The lightweight chassis (8) is equipped with at least one special equipment (9), and the special vehicle includes a non-long-term power take-off vehicle (10) for power output, a single-function special vehicle (11) for receiving and outputting power, and a multi-function special vehicle (12) for receiving power. The power take-off mechanism includes a power take-off unit (13); the oil inlet and outlet hoses (6) include a high-pressure oil inlet pipe and a low-pressure oil return pipe.

2. The parallel-type special vehicle power output structure according to claim 1, characterized in that, The non-long-term power take-off vehicle (10) is equipped with at least one special equipment (9) for non-long-term operation and a set of plug-and-play quick connectors (7) on its lightweight chassis (8). The oil inlet and return lines of the special equipment (9) are connected to the control valve (5), and when the special equipment (9) stops working, it can output power to the outside through the control valve (5) and the plug-and-play quick connectors (7).

3. The parallel-type special vehicle power output structure according to claim 1, characterized in that, The single-function special vehicle (11) is equipped with at least one special equipment (9) with high power requirements and at least one set of plug-and-play quick connectors (7) on its light chassis (8). The oil inlet and return lines of the special equipment (9) are connected to the control valve (5). When the special equipment (9) is working, it can receive power input through at least one set of plug-and-play quick connectors (7) and input power to the special equipment (9) through the control valve (5). When the special equipment (9) stops working, it can output power to the outside through the control valve (5) and at least one set of plug-and-play quick connectors (7).

4. The parallel-type special vehicle power output structure according to claim 1, characterized in that, The multi-functional special-purpose vehicle (12) is equipped with at least two special devices (9) and several plug-and-play quick connectors (7) on its lightweight chassis (8). The number of plug-and-play quick connectors (7) is equal to the number of special devices (9) minus one. One of the special devices (9) is connected to the control valve (5), and the other special devices (9) are connected to the plug-and-play quick connectors (7). The special devices (9) connected to the plug-and-play quick connectors (7) need to receive power input through the plug-and-play quick connectors (7) to work.

5. A parallel-type special-purpose vehicle power output structure according to any one of claims 1-4, characterized in that, The hydraulic pump (3), hydraulic oil tank (4), power take-off mechanism and plug-and-play quick connector (7) are all located on the underside of the light chassis (8) or the underside of the special vehicle, and the control valve (5) is installed on the upper side of the light chassis (8).

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