Power device of emergency equipment and emergency equipment

Abstract

The utility model relates to a kind of power device of emergency equipment and emergency equipment, including engine;Flywheel, the flywheel is connected with the engine, the outside of the flywheel is equipped with flywheel shell;Clutch device, the clutch device includes clutch shell and hydraulic clutch, the outside of the hydraulic clutch is equipped with the clutch shell, the clutch shell side is fixedly connected with the flywheel shell;The hydraulic clutch includes thrust mechanism and rotary clutch mechanism, the thrust mechanism is arranged in one side of the rotary clutch mechanism, the rotary clutch mechanism is fixedly connected with the flywheel, the thrust mechanism is used to provide the power of engagement or separation to the rotary clutch mechanism, to make the rotary clutch mechanism execute engagement or separation action;And execution mechanism, the shell of the execution mechanism is fixedly connected with the other side of the clutch shell, the input shaft of the execution mechanism is connected with the output end of the rotary clutch mechanism.

Description

Technical Field

[0001] This utility model relates to the field of emergency rescue and drainage equipment technology, specifically to a power device and rescue equipment for rescue equipment. Background Technology

[0002] Currently, tracked mobile pumping stations use a fuel engine to directly drive the operating mechanism via a mechanical clutch and drive shaft for drainage operations, and are widely used in municipal drainage, agricultural irrigation, and other industries. However, the mechanical clutch's drive shaft is relatively long, especially in the axial dimension, occupying a large amount of vehicle space, making the entire vehicle bulky, with poor maneuverability, and unable to meet the needs of operating in confined spaces. Furthermore, mechanical clutches are prone to failure, have reduced reliability, and are inconvenient to maintain. Utility Model Content

[0003] Therefore, there is a need to provide a power unit and equipment for emergency rescue, to address the current mobile pumping stations where the mechanical clutch's drive shaft is long, especially in the axial dimension, occupying a large amount of vehicle space, making the entire vehicle bulky, with poor maneuverability, and unable to meet the needs of operating in confined spaces. Furthermore, mechanical clutches are prone to failure, have reduced reliability, and are inconvenient to maintain.

[0004] To achieve the above objectives, the inventor provides a power unit for a disaster relief device, comprising:

[0005] engine;

[0006] A flywheel, which is connected to the engine, and the flywheel is provided with a flywheel housing on its exterior;

[0007] A clutch device includes a clutch housing and a hydraulic clutch. The clutch housing is externally mounted on the hydraulic clutch, and one side of the clutch housing is fixedly connected to a flywheel housing. The hydraulic clutch includes a thrust mechanism and a rotary clutch mechanism. The thrust mechanism is disposed on one side of the rotary clutch mechanism, and the rotary clutch mechanism is fixedly connected to the flywheel. The thrust mechanism is used to provide power to the rotary clutch mechanism for engagement or disengagement, so that the rotary clutch mechanism performs engagement or disengagement actions.

[0008] The system includes an operating mechanism, the housing of which is fixedly connected to the other side of the clutch housing, and the input shaft of which is connected to the output end of the rotary clutch mechanism.

[0009] In a preferred embodiment of this invention, one side of the clutch housing is bolted to the flywheel housing, and the outer casing of the actuator is bolted to the other side of the clutch housing; or

[0010] One side of the clutch housing is fixedly connected to the flywheel housing by bolts and a positioning stop, and the outer shell of the actuator is fixedly connected to the other side of the clutch housing by bolts and a positioning stop.

[0011] As a preferred structure of this utility model, the rotary clutch mechanism includes a drive disc and a transition flange, the transition flange being rigidly connected to the flywheel, and the drive disc being connected to the transition flange.

[0012] As a preferred structure of this utility model, the rotary clutch mechanism further includes multiple connecting members, and the drive disc and the transition flange are elastically connected through the multiple connecting members.

[0013] In a preferred embodiment of this invention, one end of the connector is embedded in the drive disc, and the other end of the connector is embedded in the transition flange.

[0014] As a preferred structure of this utility model, the connector is made of an elastic material.

[0015] As a preferred structure of this utility model, the rotary clutch mechanism further includes an active friction plate, a driven friction plate, and a driven shaft;

[0016] The internal spline on the active disk is slidably connected to the external spline on the active friction plate;

[0017] The internal spline on the driven friction plate is slidably connected to the external spline on the driven shaft;

[0018] The active friction plate and the driven friction plate are stacked alternately and cooperate with each other to realize the transmission or cut-off of the engine power;

[0019] The input shaft of the actuator is fixedly connected to the driven shaft.

[0020] In a preferred embodiment of this invention, the input shaft of the execution mechanism is embedded in the driven shaft and rigidly connected to the driven shaft.

[0021] In a preferred embodiment of this invention, the input shaft, the driven shaft, and the flywheel of the execution mechanism are coaxially arranged.

[0022] As a preferred structure of this utility model, the thrust mechanism includes a hydraulic cylinder and a push plate. The push plate is disposed on one side of the output end of the hydraulic cylinder, and the output end of the hydraulic cylinder is connected to the push plate. The hydraulic cylinder is used to provide driving force to the push plate.

[0023] As a preferred structure of this utility model, the oil cylinder includes a cylinder barrel, a piston, an oil inlet, and an oil outlet. The cylinder barrel is fixedly installed and has a cavity inside. The oil inlet and oil outlet are respectively spaced apart on the cylinder barrel. The oil inlet communicates with the cavity, and the oil outlet communicates with the cavity. The piston is installed inside the cylinder barrel, and the output end of the piston is connected to the push plate.

[0024] As a preferred structure of this utility model, the power unit of the emergency rescue equipment further includes a fixing component, which is fixedly connected to the hydraulic cylinder.

[0025] In a preferred embodiment of this invention, the internal spline on the push plate is slidably connected to the external spline on the driven shaft.

[0026] In a preferred embodiment of this invention, the operating mechanism is a water pump, which is used to perform pumping operations; or

[0027] The operating mechanism is a fan, which is used to perform ventilation operations.

[0028] The advantages of the above technical solution, which differs from existing technologies, are as follows: The power unit of the emergency rescue equipment of this utility model has one side of the clutch housing fixedly connected to the flywheel housing, and the other side of the clutch housing fixedly connected to the outer shell of the execution mechanism, forming a closed integrated space of "flywheel housing-clutch housing-execution mechanism outer shell". The structure is compact and lightweight, completely eliminating the traditional long drive shaft. Compared with the same type of tracked drainage mobile pumping station, the length is reduced by 400mm and the weight is reduced by 100kg. It is easier to meet the drainage operations in narrow spaces such as underground shopping malls and garages, underground rail transit, dilapidated buildings and basements, and manholes, and has strong mobility. The use of a hydraulic clutch instead of a traditional mechanical clutch has high reliability. Compared with the use of a mechanical clutch, the failure rate is greatly reduced, and maintenance is convenient and cost-effective.

[0029] To achieve the above objectives, the inventors have provided a disaster relief device, including a power unit for the disaster relief device as described in any of the above-mentioned claims.

[0030] As a preferred structure of this utility model, the emergency rescue equipment also includes a vehicle body, a walking mechanism, and a control system;

[0031] The power unit is fixed to the vehicle body, and the walking mechanism is installed at the bottom of the vehicle body. The walking mechanism is used to move the emergency rescue equipment.

[0032] The control system is mounted on the vehicle body; the control system is used to control the oil inlet or outlet of the hydraulic cylinder to adjust the clutch action and start / stop of the power unit.

[0033] The advantages of the above technical solution, which differs from existing technologies, are as follows: In the emergency rescue equipment of this utility model, one side of the clutch housing of the power unit is fixedly connected to the flywheel housing, and the other side of the clutch housing is fixedly connected to the outer shell of the execution mechanism, forming a closed integrated space of "flywheel housing-clutch housing-execution mechanism outer shell". The structure is compact and lightweight, completely eliminating the traditional long drive shaft. Compared with the same type of tracked mobile drainage pump station, the length is reduced by 400mm and the weight is reduced by 100kg. It is easier to meet the drainage operations in narrow spaces such as underground shopping malls and garages, underground rail transit, dilapidated buildings and basements, and manholes, and has strong mobility. The hydraulic clutch replaces the traditional mechanical clutch. The hydraulic clutch has high reliability. Compared with the use of mechanical clutch, the failure rate is greatly reduced, and maintenance is convenient and cost-effective.

[0034] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0035] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0036] In the accompanying drawings of the instruction manual:

[0037] Figure 1 This is a cross-sectional view of the power unit of the emergency rescue equipment described in the specific embodiment;

[0038] Figure 2 This is a cross-sectional view of the thrust mechanism described in the specific embodiment;

[0039] Figure 3 This is a cross-sectional view of the rotary clutch mechanism described in the specific embodiment;

[0040] Figure 4 for Figure 1 One of the enlarged partial schematic diagrams in the image;

[0041] Figure 5 for Figure 1 The second enlarged partial schematic diagram;

[0042] Figure 6 This is a structural diagram of the emergency rescue equipment described in a specific implementation.

[0043] The reference numerals used in the above figures are explained as follows:

[0044] 100. Vehicle body,

[0045] 200. Walking mechanism,

[0046] 300. Control system

[0047] 1. Clutch housing,

[0048] 2. Hydraulic clutch,

[0049] 21. Rotary clutch mechanism,

[0050] 211. Active trading,

[0051] 212. Active friction pad,

[0052] 213. Driven friction plate,

[0053] 214. Driven shaft,

[0054] 215. Connectors,

[0055] 216. Transition flange,

[0056] 22. Thrust mechanism,

[0057] 221. Cylinder barrel,

[0058] 222. Piston

[0059] 223. Oil inlet,

[0060] 224. Cavity,

[0061] 225. Pushing the plate.

[0062] 226. Oil outlet,

[0063] 3. The implementing organization,

[0064] 31. The input shaft of the actuator.

[0065] 32. The outer casing of the operating mechanism.

[0066] 4. Flywheel

[0067] 5. Flywheel housing,

[0068] 6. Bolts,

[0069] 7. Locate the stop.

[0070] 8. Fixed components. Detailed Implementation

[0071] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0072] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0073] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0074] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0075] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0076] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0077] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0078] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. These expressions are only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. Furthermore, in this context, it should be understood that when it is mentioned that an element is connected "on" or "below" another element, it can be directly connected not only to the other element "on" or "below," but also indirectly connected to the other element "on" or "below" through an intermediate element.

[0079] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0080] Please see Figures 1 to 5 This embodiment relates to a power unit for emergency rescue equipment, wherein the emergency rescue equipment in this embodiment is a tracked drainage pumping station, a drainage robot, a drainage truck, a fire water supply truck, or an earthquake rescue suction truck, etc. Specifically, the power unit of the emergency rescue equipment includes:

[0081] An engine; an engine, as the power output source, refers to a device that converts the energy of fuel (diesel or gasoline) into mechanical rotational power (such as a diesel engine or gasoline engine). Structurally, it is fixed to the chassis frame of the tracked pump station, with the output end (crankshaft) rigidly connected to the flywheel 4. The engine provides stable, high-power power to the entire power unit, meeting the high-power requirements of disaster relief operations.

[0082] Flywheel 4 is connected to the engine, and a flywheel housing 5 is provided on its exterior. Flywheel 4 is a heavy, disc-shaped metal component with a large moment of inertia, its core function being to store engine rotational energy and stabilize engine speed. Flywheel housing 5 is a shell structure that encloses the flywheel 4. Flywheel 4 is fixed to the engine crankshaft via a central hole bolt, while flywheel housing 5 is welded or bolted to the engine block, with a pre-drilled interface on one side for mating with clutch housing 1. Flywheel 4 buffers engine speed fluctuations, preventing power transmission shocks; flywheel housing 5 protects flywheel 4 from external impurities (such as mud and water) and provides a precise positioning and installation reference for the clutch assembly.

[0083] The clutch assembly includes a clutch housing 1 and a hydraulic clutch 2. The clutch housing 1 is mounted on the outside of the hydraulic clutch 2, and one side of the clutch housing 1 is fixedly connected to the flywheel housing 5. The clutch housing 1 is a metal shell that encloses the hydraulic clutch 2, serving both protective and connection functions. The hydraulic clutch 2 is a clutch mechanism that controls the "engagement / disengagement" action through hydraulic driving force. The hydraulic clutch 2 includes a thrust mechanism 22 and a rotary clutch mechanism 21. The thrust mechanism 22 is located on one side of the rotary clutch mechanism 21, and the rotary clutch mechanism 21 is fixedly connected to the flywheel 4. The thrust mechanism 22 provides the power to engage or disengage the rotary clutch mechanism 21, enabling the rotary clutch mechanism 21 to perform the engagement or disengagement action. The thrust mechanism 22 is the "action control core" of the hydraulic clutch 2, responsible for driving the rotary clutch mechanism 21 to achieve "engagement / disengagement." The rotary clutch mechanism 21 is the core force transmission component of the hydraulic clutch 2, responsible for transmitting the power from the flywheel 4 to the actuating mechanism 3. The system replaces the traditional mechanical clutch and long drive shaft with a clutch device, and uses hydraulic control to transmit or cut off power, which significantly shortens the axial dimension and reduces the overall vehicle size. At the same time, the hydraulic drive reduces mechanical wear and lowers the probability of clutch mechanism failure.

[0084] The system includes an execution mechanism 3, whose housing 32 is fixedly connected to the other side of the clutch housing, and whose input shaft 31 is connected to the output end of the rotary clutch mechanism 21. The execution mechanism 3 is a terminal working component (such as a water pump or fan) that performs emergency response functions. The housing 32 of the execution mechanism provides protection and connection, while the input shaft 31 receives power. The housing 32 is fixedly connected to the other side of the clutch housing 1, and the input shaft is fixed to the output end (driven shaft 214) of the rotary clutch mechanism 21. After receiving power, the input shaft 31 drives the execution mechanism 3 to operate (e.g., a water pump pumps water, a fan blows air). Integrated connections reduce the number of components and assembly difficulty; the input shaft 31 of the execution mechanism directly connects to the driven shaft 214 without additional transmission clearance, improving power transmission efficiency. Specifically, in this embodiment, as... Figures 1 to 3 As shown, the execution mechanism 3 is a water pump, which is used to perform water pumping operations; or in other embodiments, the execution mechanism is a fan, which is used to perform ventilation operations.

[0085] Specifically, in this embodiment, the power unit of the emergency rescue equipment has one side of the clutch housing 1 fixedly connected to the flywheel housing 5, and the other side of the clutch housing 1 fixedly connected to the outer shell of the execution mechanism 3, forming a closed integrated space of "flywheel housing 5-clutch housing 1-execution mechanism outer shell". The structure is compact and lightweight, completely eliminating the traditional long drive shaft. Compared with the same type of tracked mobile drainage pump station, the length is reduced by 400mm and the weight is reduced by 100kg. It is more likely to meet the drainage operations in narrow spaces such as underground shopping malls and garages, underground rail transit, dilapidated buildings and basements, and manholes, and has strong mobility. The hydraulic clutch 2 is used to replace the traditional mechanical clutch. The hydraulic clutch 2 has high reliability. Compared with the use of mechanical clutch, the failure rate is greatly reduced, and maintenance is convenient and cost-effective.

[0086] Optionally, in some embodiments, such as Figures 1 to 5As shown, one side of the clutch housing 1 is fixedly connected to the flywheel housing 5 by bolts 6 and positioning stops 7, and the outer shell 32 of the actuator is fixedly connected to the other side of the clutch housing by bolts 6 and positioning stops 7. In this embodiment, the connection between the clutch housing 1 and the flywheel housing 5, and the outer shell of the actuator 3, all adopt a combination of "bolts 6 + positioning stops 7". The "positioning stops 7" refers to a matching "boss-groove" structure at the mating surfaces of the two components (e.g., the flywheel housing 5 has an annular boss at the mating end, and the clutch housing 1 has an annular groove of the same size as the boss at the mating end), and the bolts 6 are high-strength fastening bolts. During connection, the positioning stops 7 are used to achieve precise alignment of the two components to ensure coaxiality, and then 4-6 bolts 6 are evenly distributed along the circumference to rigidly lock the components; the connection method between the outer shell of the actuator 3 and the clutch housing 1 is exactly the same. The positioning stops 7 serve a "pre-positioning + anti-displacement" function, while the bolts 6 ensure connection strength. By employing a combination connection of "bolt 6 + locating stop 7", the "alignment deviation" problem that easily occurs with traditional connections relying solely on bolt 6 is avoided. This ensures that the axes of the flywheel 4, clutch, and actuator 3 are completely aligned, reducing radial runout during transmission and minimizing component wear. Simultaneously, it enhances the vibration resistance of the connection structure, adapting to the operational needs of mobile pump stations on bumpy roads. Alternatively, in other embodiments, one side of the clutch housing 1 is fixedly connected to the flywheel housing 5 using bolts 6, and the outer casing 32 of the actuator is fixedly connected to the other side of the clutch housing using bolts 6.

[0087] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the rotary clutch mechanism 21 includes a drive disc 211 and a transition flange 216. The transition flange 216 is rigidly connected to the flywheel 4, and the drive disc 211 is connected to the transition flange 216. The transition flange 216 is a ring-shaped flange component made of high-strength metal, used to connect the flywheel 4 and the drive disc 211. One side of the transition flange 216 is rigidly fixed to the end face of the flywheel 4 by 6-8 bolts, while the other side is connected to the drive disc 211 by an elastic connector 215. The transition flange 216, as a "transition connector" between the flywheel 4 and the drive disc 211, avoids the impact transmission caused by the direct rigid connection between the drive disc 211 and the flywheel 4. It also facilitates the disassembly and maintenance of the drive disc 211, buffering dynamic impacts, reducing the connection stress between the drive disc 211 and the flywheel 4, extending the service life of the components, and improving the convenience of later maintenance.

[0088] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the rotary clutch mechanism 21 also includes a plurality of connecting members 215, and the drive disc 211 and the transition flange 216 are elastically connected through the plurality of connecting members 215.

[0089] Optionally, in some embodiments, such as Figures 1 to 3 As shown, one end of the connector 215 is embedded in the drive disc 211, and the other end of the connector 215 is embedded in the transition flange 216.

[0090] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the connector 215 is made of an elastic material.

[0091] Specifically, in this embodiment, such as Figures 1 to 3 As shown, the connector 215 is a columnar or block-shaped component made of elastic materials such as nitrile rubber and polyurethane, with embedded structures at both ends that match the pre-drilled holes of the drive disc 211 and the transition flange 216. One end of the connector 215 is embedded in the pre-drilled hole of the drive disc 211 (using an interference fit to ensure a firm connection), and the other end is embedded in the pre-drilled hole of the transition flange 216. There are 3-6 connectors, evenly distributed along the circumference. Utilizing the deformation characteristics of the elastic material, it buffers the torque impact caused by engine power fluctuations (such as rapid acceleration and load changes), while also absorbing noise during transmission. Furthermore, the connector 215 reduces rigid collisions between the drive disc 211 and the transition flange 216, making power transmission smoother; it also reduces transmission noise and improves the working environment.

[0092] Optionally, in some embodiments, such as Figures 1 to 3As shown, the rotary clutch mechanism 21 further includes an active friction plate 212, a driven friction plate 213, and a driven shaft 214; the internal spline on the active disc 211 is slidably connected to the external spline on the active friction plate 212; the internal spline on the driven friction plate 213 is slidably connected to the external spline on the driven shaft 214; the active friction plate 212 and the driven friction plate 213 are alternately stacked and cooperate with each other to realize the transmission or cutoff of the engine power; the input shaft 31 of the execution mechanism is fixedly connected to the driven shaft 214. Both the active friction plate 212 and the driven friction plate 213 are annular friction components, with their surfaces coated with friction coefficient materials such as ceramic matrix composites; the outer circumference of the active friction plate 212 is provided with an external spline, and the inner hole of the driven friction plate 213 is provided with an internal spline. The active friction plate 212 is slidably connected to the active disc 211 via an external spline (it can move axially and rotate synchronously with the active disc 211); the driven friction plate 213 is slidably connected to the driven shaft 214 via an internal spline (similarly it can move axially and rotate synchronously with the driven shaft 214); the two are stacked alternately (two to four sets) to form a friction transmission pair. When the active friction plate 212 and the driven friction plate 213 are in contact, power is transmitted through friction; when they are separated, power is cut off, which is the core structure of the hydraulic clutch 2 to achieve "power transmission / cut-off". The driven shaft 214 is the power output end of the rotary clutch mechanism 21. The driven shaft 214 is splined with the driven friction plate 213 and fixed to the input shaft 31 of the actuator. The driven shaft 214 is used to receive the power transmitted by the driven friction plate 213 and transmit it to the actuator 3.

[0093] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the input shaft 31 of the actuator is embedded in the driven shaft 214 and rigidly connected to the driven shaft 214, wherein the rigid connection can be achieved by a flat key, welding, or bolts. This connection method, in which the input shaft is embedded in the driven shaft 214, shortens the axial dimension compared to a traditional flange connection, further reducing the overall vehicle volume.

[0094] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the input shaft 31, the driven shaft 214, and the flywheel 4 of the actuator are coaxially arranged. This coaxial arrangement ensures that power transmission is free from radial offset, reduces bending stress on shaft components, and prevents shaft deformation.

[0095] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the thrust mechanism 22 includes a hydraulic cylinder and a push plate 225. The push plate 225 is disposed on one side of the output end of the hydraulic cylinder, and the output end of the hydraulic cylinder is connected to the push plate 225. The hydraulic cylinder is used to provide driving force to the push plate 225.

[0096] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the hydraulic cylinder includes a cylinder barrel 221, a piston 222, an oil inlet 223, and an oil outlet 226. The cylinder barrel 221 has a cavity 224. The oil inlet 223 and the oil outlet 226 are respectively spaced apart on the side wall of the cylinder barrel 221. The oil inlet 223 communicates with the cavity 224, and the oil outlet 226 also communicates with the cavity 224. The piston 222 is disposed within the cylinder barrel 221. The piston 222 is a metal disc adapted to the inner diameter of the cylinder barrel 221 and can move axially within the cavity 224. The cylinder barrel 221 is fixed to the inner wall of the clutch housing 1 by bolts, and the output end of the piston 222 is connected to a push plate 225. The movement direction of piston 222 is controlled by the inlet 223 and outlet 226 of hydraulic oil: when oil enters through inlet 223, hydraulic oil pushes piston 222 toward the friction plate; when oil enters through outlet 226, piston 222 returns to its original position away from the friction plate.

[0097] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the power unit of the emergency rescue equipment also includes a fixing component 8, which is fixedly connected to the cylinder 221 of the hydraulic cylinder. The fixing component 8 is a limiting bolt, one end of which is fixedly connected to the cylinder 221 of the hydraulic cylinder, and the other end of which is fixedly connected to the clutch housing 1, thereby fixing and limiting the cylinder 221 of the hydraulic cylinder.

[0098] Optionally, in some embodiments, such as Figures 1 to 3 As shown, the internal spline on the push plate 225 is slidably connected to the external spline on the driven shaft 214. The push plate 225 is an annular metal disc with an internal spline in its inner hole that matches the external spline of the driven shaft 214. The push plate 225 is slidably connected to the driven shaft 214 via the internal spline and fits against the end face of the driven friction plate 213. One side of the push plate 225 is connected to the hydraulic cylinder piston 222 and moves synchronously with the piston 222, pushing the driven friction plate 213 to engage or disengage from the driving friction plate 212.

[0099] The hydraulically driven mechanism 22 provides smooth operation, and the piston 222's movement speed can be adjusted by the amount of oil, avoiding the "rigid impact" of traditional mechanical clutches. The spline connection between the push plate 225 and the driven shaft 214 ensures that the push plate 225 moves only axially without radial offset, which can precisely control the contact pressure of the friction plates and further improve the reliability and stability of the clutch action.

[0100] Specifically, in this embodiment, such as Figures 1 to 3As shown, the execution mechanism 3 is a water pump, specifically a centrifugal pump or screw pump used for pumping operations. The water pump includes a pump body (outer casing), an impeller, and an input shaft. Structurally, the pump body outer casing is fixed to the clutch housing 1 by bolts and a positioning stop; the input shaft is a metal shaft, rigidly connected to the driven shaft 214 by bolts. After receiving power from the driven shaft 214, the input shaft drives the impeller to rotate, utilizing centrifugal force to pump water, precisely meeting the core emergency needs of municipal drainage and agricultural irrigation. The integrated structure reduces the overall size of the water pump and power unit, facilitating the movement and operation of the tracked pump station in narrow spaces such as alleyways. Alternatively, in other embodiments, the execution mechanism 3 is a fan used for ventilation operations. In this case, the power unit of the emergency equipment is applied to an earthquake rescue suction vehicle, where the fan creates negative pressure in the material tank of the earthquake rescue suction vehicle, drawing rocks from the outside into the material tank.

[0101] Please see Figures 1 to 6 This embodiment also relates to a disaster relief device, which is a tracked drainage pumping station, a drainage robot, a drainage truck, or a fire-fighting water supply truck, etc. The disaster relief device includes a power unit as described in any of the embodiments above. The disaster relief device is a tracked mobile pumping station containing the aforementioned power unit, and further includes a vehicle body 100, a walking mechanism 200, and a control system 300; the power unit is fixed to the vehicle body 100, the walking mechanism 200 is installed at the bottom of the vehicle body 100, and the walking mechanism 200 is used to move the disaster relief device; the control system 300 is disposed on the vehicle body; the control system 300 is used to control the oil inlet or outlet of the hydraulic cylinder to adjust the clutch action and start / stop of the power unit. Specifically, the power unit is fixed in the middle of the vehicle body 100, and the tracked walking mechanism is installed at the bottom of the vehicle body. The control system 300 includes a PLC controller, hydraulic valve group, and operation panel; the tracked walking mechanism enables equipment movement and adapts to muddy and rugged terrain; the control system 300 controls the oil inlet or outlet of the hydraulic cylinder and adjusts the clutch action and start / stop of the power unit to achieve flexible control of water pumping operations, thereby improving equipment mobility and enabling it to quickly enter narrow and complex working environments; at the same time, the power unit has a low failure rate, ensuring continuous operation of the equipment and meeting the timeliness requirements of emergency rescue operations.

[0102] Specifically, in this embodiment, the power unit of the emergency rescue equipment achieves a cyclical control of power "cut-off-transmission" through "hydraulic control of clutch action + coaxial power transmission". The specific working process is divided into a disengaged state and an engaged state, and a buffer protection is achieved through an elastic structure, as detailed below:

[0103] 1. Disconnected state (power cut off, suitable for shutdown and gear shifting scenarios)

[0104] When the equipment is not in operation (such as when it is stopped) or when the operating conditions need to be switched (such as when the water pumping flow rate is adjusted), the control system enters the separation mode: the control system controls the oil outlet 226 of the oil cylinder to receive oil and the oil inlet 223 to return oil. The hydraulic oil enters the side of the oil cylinder cavity 224 away from the friction plate through the oil outlet 226, pushing the piston 222 to move away from the friction plate. The piston 222 drives the push plate 225 to slide along the spline axis of the driven shaft 214. The push plate 225 and the driven friction plate 213 gradually separate, and a gap of 0.5-1mm is formed between the active friction plate 212 and the driven friction plate 213. At this time, although the engine power can be transmitted to the flywheel 4, the transition flange 216, the active disc 211 and the active friction plate 212 in sequence, the power cannot be transmitted to the driven shaft 214 because the active friction plate 212 and the driven friction plate 213 are not in contact. The operating mechanism 3 (water pump) has no power input and stops working.

[0105] 2. Engaged state (power transmission, applicable to pumping operation scenarios)

[0106] When the equipment needs to perform emergency pumping operations, the control system switches to the engagement mode: the control system controls the oil inlet 223 of the oil cylinder to receive oil and the oil outlet 226 to return oil. Hydraulic oil enters the cylinder cavity 224 through the oil inlet 223, pushing the piston 222 to move towards the friction plate. The piston 222 drives the push plate 225 to slide axially along the driven shaft 214. The push plate 225 squeezes the outermost driven friction plate 213, making the driven friction plate 213 and the active friction plate 212 fit tightly together, generating friction between them (the magnitude of the friction can be controlled by adjusting the oil inlet pressure; the greater the pressure, the greater the friction). The engine power is transmitted sequentially to the flywheel 4 → transition flange 216 → active disc 211 → active friction plate 212, and then transmitted through friction to the driven friction plate 213 → driven shaft 214 → water pump input shaft. The impeller of the water pump rotates with the input shaft, generating centrifugal force to draw in water and pressurize it for discharge, thus realizing the pumping operation.

[0107] 3. Buffer protection process

[0108] During power transmission, if the engine speed fluctuates (such as during rapid acceleration or a sudden increase in load), the elastic connector 215 between the transition flange 216 and the drive disc 211 will undergo elastic deformation: when the torque increases instantaneously, the connector 215 is compressed, absorbing some of the impact energy and preventing direct rigid collision between the drive disc 211 and the transition flange 216; when the torque decreases, the connector 215 rebounds, releasing the stored energy and maintaining a stable speed of the drive disc 211. Simultaneously, the positioning stop is coaxially aligned with each shaft to ensure complete overlap of the axes of the flywheel 4, driven shaft 214, and centrifugal pump input shaft, reducing radial runout during transmission, preventing uneven wear of the friction plates due to misalignment, further extending component lifespan, and improving the operational stability of the power unit.

[0109] The advantages of the above technical solution, which differ from existing technologies, are as follows:

[0110] 1. Compact size and high mobility: Through the integrated connection of "flywheel housing 5-clutch housing 1-actuator housing" and the coaxial setting of each shaft, the traditional long drive shaft is completely eliminated, the axial dimension is shortened, and it fully meets the operation needs of narrow spaces such as narrow alleys and narrow field ridges;

[0111] 2. High reliability and fewer failures: The hydraulic clutch 2 replaces the traditional mechanical clutch. With the buffering effect of the elastic connecting piece 215, friction and wear are reduced, the mean time between failures of the clutch mechanism is increased, and the frequency of equipment downtime for maintenance is greatly reduced.

[0112] 3. High efficiency and good stability: The positioning stop ensures precise alignment of each component, with small coaxiality error, improving power transmission efficiency; reducing component wear and extending the service life of the whole machine;

[0113] 4. Convenient maintenance and low cost: The integrated structure reduces the number of connection nodes from the traditional 10-12 to 3-4, shortening the troubleshooting time; reducing maintenance costs and making subsequent operation and maintenance more convenient.

[0114] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A power unit for emergency rescue equipment, characterized in that, include: engine; A flywheel, which is connected to the engine, and the flywheel is provided with a flywheel housing on its exterior; A clutch device includes a clutch housing and a hydraulic clutch. The clutch housing is externally mounted on the hydraulic clutch, and one side of the clutch housing is fixedly connected to a flywheel housing. The hydraulic clutch includes a thrust mechanism and a rotary clutch mechanism. The thrust mechanism is disposed on one side of the rotary clutch mechanism, and the rotary clutch mechanism is fixedly connected to the flywheel. The thrust mechanism is used to provide power to the rotary clutch mechanism for engagement or disengagement, so that the rotary clutch mechanism performs engagement or disengagement actions. The system includes an operating mechanism, the housing of which is fixedly connected to the other side of the clutch housing, and the input shaft of which is connected to the output end of the rotary clutch mechanism.

2. The power unit of the emergency rescue equipment according to claim 1, characterized in that: One side of the clutch housing is fixedly connected to the flywheel housing by bolts, and the outer shell of the actuator is fixedly connected to the other side of the clutch housing by bolts; or One side of the clutch housing is fixedly connected to the flywheel housing by bolts and a positioning stop, and the outer shell of the actuator is fixedly connected to the other side of the clutch housing by bolts and a positioning stop.

3. The power unit of the emergency rescue equipment according to claim 1, characterized in that: The rotary clutch mechanism includes a drive disc and a transition flange. The transition flange is rigidly connected to the flywheel, and the drive disc is connected to the transition flange.

4. The power unit of the emergency rescue equipment according to claim 3, characterized in that: The rotary clutch mechanism also includes multiple connecting parts, and the drive disc and the transition flange are elastically connected through the multiple connecting parts.

5. The power unit of the emergency rescue equipment according to claim 4, characterized in that: One end of the connector is embedded in the drive disc, and the other end of the connector is embedded in the transition flange.

6. The power unit of the emergency rescue equipment according to claim 4, characterized in that: The connector is made of an elastic material.

7. The power unit of the emergency rescue equipment according to claim 3 or 4, characterized in that: The rotary clutch mechanism also includes a driving friction plate, a driven friction plate, and a driven shaft; The internal spline on the active disk is slidably connected to the external spline on the active friction plate; The internal spline on the driven friction plate is slidably connected to the external spline on the driven shaft; The active friction plate and the driven friction plate are stacked alternately and cooperate with each other to realize the transmission or cut-off of the engine power; The input shaft of the actuator is fixedly connected to the driven shaft.

8. The power unit of the emergency rescue equipment according to claim 7, characterized in that: The input shaft of the actuator is embedded in the driven shaft and is rigidly connected to the driven shaft.

9. The power unit of the emergency rescue equipment according to claim 7, characterized in that: The input shaft, the driven shaft, and the flywheel of the execution mechanism are coaxially arranged.

10. The power unit of the emergency rescue equipment according to claim 7, characterized in that: The thrust mechanism includes a hydraulic cylinder and a push plate. The push plate is located on one side of the output end of the hydraulic cylinder, and the output end of the hydraulic cylinder is connected to the push plate. The hydraulic cylinder is used to provide driving force to the push plate.

11. The power unit of the emergency rescue equipment according to claim 10, characterized in that: The hydraulic cylinder includes a cylinder barrel, a piston, an oil inlet, and an oil outlet. The cylinder barrel is fixedly installed and has a cavity inside. The oil inlet and oil outlet are respectively spaced apart on the cylinder barrel. The oil inlet communicates with the cavity, and the oil outlet communicates with the cavity. The piston is installed inside the cylinder barrel, and the output end of the piston is connected to the push plate.

12. The power unit of the emergency rescue equipment according to claim 10, characterized in that: The power unit of the emergency rescue equipment also includes a fixing component, which is fixedly connected to the hydraulic cylinder.

13. The power unit of the emergency rescue equipment according to claim 10, characterized in that: The internal spline on the push plate is slidably connected to the external spline on the driven shaft.

14. The power unit of the emergency rescue equipment according to any one of claims 1 to 6, characterized in that: The operating mechanism is a water pump, which is used to perform pumping operations; or The operating mechanism is a fan, which is used to perform ventilation operations.

15. A type of emergency rescue equipment, characterized in that: Includes the power unit of the emergency rescue equipment as described in any one of claims 1 to 14 above.

16. The emergency rescue equipment according to claim 15, characterized in that: The emergency rescue equipment also includes a vehicle body, a walking mechanism, and a control system; The power unit is fixed to the vehicle body, and the walking mechanism is installed at the bottom of the vehicle body. The walking mechanism is used to move the emergency rescue equipment. The control system is mounted on the vehicle body; the control system is used to control the oil inlet or outlet of the hydraulic cylinder to adjust the clutch action and start / stop of the power unit.

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