WO2024000717A1 - Operation machine - Google Patents

Abstract

The present application relates to the field of water spraying operation, and provides an operation machine. The operation machine comprises a vehicle frame, a water pump, and a power takeoff; the water pump is mounted on the vehicle frame; the power takeoff is connected to the water pump by means of a shaft; the power takeoff is mounted on the vehicle frame; and in the length direction of the vehicle frame, the water pump is arranged between the power takeoff and a cab of the operation machine. The present application is used for overcoming at least one defect in the prior art of low transmission efficiency and poor stability when a boom assembly has larger operation range. The water pump and the power takeoff are mounted on the vehicle frame, and in the length direction of the vehicle frame, the water pump is arranged between the power takeoff and the cab, such that the connection length of the shaft between the water pump and the power takeoff is shortened, and the transmission efficiency of the water pump and the power takeoff is improved.

Description

Work machinery

Cross-references to related applications

This application claims priority to the Chinese patent application with application number 2022107714399 and the invention title "Working Machinery" submitted on June 30, 2022, which is fully incorporated herein by reference.

Technical field

The present application relates to the technical field of water spray operations, and in particular to a working machine.

Background technique

Currently, there are water spraying machinery with boom components, such as drainage trucks, fire trucks, etc. Taking fire trucks as an example, most of the fire pumps of fire trucks are medium and low pressure pumps. Medium and low pressure fire pumps are small in size and are generally arranged in the middle or rear of the frame of the fire truck.

Moreover, the power take-off of the working machinery is installed at the front end of the frame, and the fire pump is installed at the middle and rear parts of the frame. When dealing with the higher operating range requirements of the boom assembly, the existing layout method is often inefficient and unstable. Sexual issues.

Contents of the invention

This application provides a working machine to solve at least one of the defects in the prior art of low efficiency and poor stability when the boom assembly has a higher operating range. The water pump is placed between the power take-off and the cab. The distance between the power take-off and the transmission shaft of the water pump is shortened, thereby improving transmission efficiency.

This application provides a working machine, including:

frame;

A water pump, the water pump is installed on the vehicle frame;

Power take-off, the power take-off is connected to the water pump through a shaft, the power take-off is installed on the frame, along the length direction of the frame, the water pump is placed between the power take-off and the water pump. between the cabs of the above-mentioned work machinery.

According to the present application, a working machine is provided, further comprising a hydraulic pump connected to the power take-off.

According to the present application, a working machine is provided, further comprising a boom assembly, the connecting end of the boom component is installed on the vehicle frame, and the water pump is placed at the installation position of the boom component on the vehicle frame and where the boom component is installed. Between the cab, the power take-off is placed between the water pump and the boom assembly.

According to the present application, a working machine is provided, further comprising a connecting plate assembly connected between the vehicle frame and the water pump, so that the water pump is suspended above the vehicle frame.

According to the present application, a working machine is provided, and the connecting plate assembly includes a first side plate and a second side plate;

The first side plate is connected to the second side plate at an angle, and the first side plate is provided with a strip hole. The strip hole is used to connect with the vehicle frame. The strip hole is arranged along the The height direction setting of the frame;

The second side plate is connected to the bottom surface of the water pump.

According to the present application, a working machine is provided, further comprising an engine, the engine is connected to the power take-off through a shaft, and the water pump is placed between the engine and the power take-off along the length direction of the frame.

According to the present application, a working machine is provided, and the water pump, the hydraulic pump, and the engine are all placed on the same side of the power take-off.

According to the present application, a working machine is provided. The connecting shaft between the water pump and the power take-off, the shaft connecting the hydraulic pump and the power take-off, and the engine and the power take-off are sequentially arranged along the height direction of the frame. The shaft to which the forcer is connected.

According to the present application, a working machine is provided. The frame includes a chassis and a sub-beam. The sub-beam is installed on the chassis. The water pump is suspended above the sub-beam through the connecting plate assembly. The power take-off The device is connected to the subframe.

A working machine is provided according to the present application. The chassis includes a first connecting beam and a second connecting beam. The power take-off is arranged between the first connecting beam and the second connecting beam. The first connecting beam and The sub-beam is arranged above the second connecting beam.

According to the present application, a working machine is provided. The frame further includes a body assembly. The body assembly is installed above the sub-beam. Along the length direction of the frame, one end of the body assembly is installed close to the On the sub-beam of the power take-off, the other end of the vehicle body assembly is installed at the end of the sub-beam;

Wherein, the arm frame assembly is installed on the vehicle body assembly and placed at an end of the vehicle body assembly away from the power take-off.

According to the present application, a working machine is provided, further comprising a water pipe, the water pipe is arranged on the boom assembly, and the water inlet of the water pipe is connected to the water pump.

The working machine provided by this application has a water pump and a power take-off installed on the frame. The water pump is placed between the power take-off and the cab along the length of the frame, thereby shortening the axis between the water pump and the power take-off. The connection length improves the transmission efficiency of the water pump and power take-off.

Description of drawings

In order to explain the technical solutions in this application or the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are of the present invention. For some embodiments of the application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of the working machine provided by this application;

Figure 2 is a schematic structural diagram of the vehicle frame provided by this application;

Figure 3 is a partial structural diagram of the water pump installation provided by this application;

Figure 4 is an enlarged view of the partial installation state of the connecting plate assembly provided by this application;

Figure 5 is a schematic diagram of the installation status of the water pump and power take-off provided by this application;

Figure 6 is a top view of the vehicle frame structure provided by this application;

Figure 7 is a top view of the vehicle body assembly structure provided by this application.

Reference signs:

100: Cab; 201: Water pump; 202: Power take-off;

203: Engine; 204: Hydraulic pump; 210: Hook plate;

211: The first input shaft; 212: The second input shaft; 213: The first output shaft;

300: Frame; 301: Chassis; 302: Sub-frame;

303: Connecting plate assembly; 304: Connecting seat; 305: Body assembly;

310: Second side plate; 311: First side plate; 312: Strip hole;

320: The first connecting beam; 321: The second connecting beam; 322: Cross beam;

400: Boom assembly; 401: Turntable; 402: Telescopic arm.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top" ", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the embodiments of the present application. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood in specific situations.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the embodiments of this application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Embodiments of the present application will be described below with reference to FIGS. 1 to 7 . It should be understood that the following descriptions are only illustrative embodiments of the present application and do not limit the present application.

Research has found that when the extension height of the boom assembly is high, in order to achieve a matching fire extinguishing height, most fire pumps use high-pressure fire pumps. High-pressure fire pumps are large in size and heavy in mass. Among them, the boom component is generally a folding boom. When the boom component is not in use or transported, the boom component is folded on the working machine. When the boom component needs to be sprayed at high altitude, it can be unfolded. The height of the boom depends on the height of the boom. Determined by the arm section length and rotation angle of the component. If the high-pressure fire pump still uses a hollow area in the frame, and the high-pressure fire pump is installed in the middle or rear of the frame, it will cause the defect of insufficient frame stiffness. And when there is a boom component with a large extension height, it will cause the problem of poor stability of the connection end of the boom component. The water pump is placed above the frame to ensure the integrity of the overall structure of the frame, thereby ensuring its stiffness; the water pump is placed on the side of the frame close to the cab to improve the connection stability of the boom assembly when it is extended.

As shown in Figures 1 and 2, this application provides a working machine, including: a boom assembly 400, a water pump 201, and a frame 300 for supporting the boom assembly 400 and the water pump 201. Specifically, the boom assembly 400 is placed on the side of the frame 300 away from the cab 100 of the working machine; the water pump 201 is installed above the frame 300, and the water pump 201 is placed on the side of the frame 300 close to the cab 100.

In other words, the boom assembly 400 and the water pump 201 are placed on opposite sides of the frame 300 along the length direction, so that after the boom assembly 400 is extended, the height of the boom assembly 400 continues to rise, and the water pump 201 reaches the balance of the boom assembly 400 The function of the machine is to maintain the overall stability of the operating machinery. In particular, when the water pump 201 is a high-pressure water pump 201, it is larger in size and heavier in mass. For example, the arm assembly 400 is installed at the end of the vehicle frame 300 , the water pump 201 is installed at the front end of the vehicle frame 300 , and the water pump 201 is close to the cab 100 .

Among them, the water pump 201 is placed above the frame 300, which facilitates the installation and maintenance of the water pump 201. Compared with the existing technology where the water pump 201 is installed in the hollow area of the frame 300, the overall stiffness of the frame 300 is improved, thereby realizing the frame 300 can better provide sufficient bearing capacity for the boom assembly 400. For example, the lower surface of the water pump 201 is connected to the upper surface of the vehicle frame 300 . The overall stiffness of the frame 300 is increased, further improving the stability of the arm assembly 400.

As shown in Figures 3 and 4, in one embodiment of the present application, the working machine also includes a connecting plate assembly 303. The connecting plate assembly 303 is connected between the vehicle frame 300 and the water pump 201, so that the water pump 201 is placed on the vehicle frame. Above 300. Specifically, a connecting plate assembly 303 is connected to the lower surface of the water pump 201, and the vehicle frame 300 is connected to the connecting plate assembly 303 to realize the connection between the vehicle frame 300 and the water pump 201. For example, two connecting plate assemblies 303 are provided in the length direction of the water pump 201, and the two connecting plate assemblies 303 are respectively connected to both sides of the frame 300, so that the water pump 201 is placed above the frame 300, so that there is a certain distance between the water pump 201 and the ground. Installation and maintenance distance. At the same time, the installation height of the water pump 201 is increased to adapt to the connection height of the input shaft of the water pump 201 so that the input shaft maintains horizontal transmission.

As shown in Figure 4, in an optional embodiment of the invention, the connecting plate assembly 303 includes a first side plate 311 and a second side plate 310; one side of the first side plate 311 is connected to the second side plate 310 at an angle, For example, the first side plate 311 and the second side plate 310 are vertically connected, and reinforcing ribs are provided between the first side plate 311 and the second side plate 310 . A strip hole 312 is provided on the surface of the first side plate 311. The strip hole 312 is used to connect with the frame 300. The strip hole 312 is provided along the height direction of the frame 300 to adjust the position of the water pump 201 relative to the frame 300. height; the second side plate 310 is connected to the bottom surface of the water pump 201.

In other words, the first side plate 311 and the second side plate 310 can be integrally formed bent parts, and the second side plate 310 can be welded to the water pump 201 as a part of the water pump 201 . The water pump 201 is connected to the frame 300 through the strip hole 312 of the first side plate 311. The length direction of the strip hole 312 is consistent with the height direction of the water pump 201 from the ground. The connecting plate assembly 303 passes through the strip hole 312 and the connection plate assembly 303 through fasteners. The vehicle frame 300 is connected. For example, the first side plate 311 can be connected to the side of the vehicle frame 300 . Through different connection positions of the fasteners and the strip holes 312 along the height direction, the relative height of the water pump 201 and the ground or the vehicle frame 300 can be adjusted to adapt to different installation heights. Among them, fasteners can be bolts, screws, studs, etc.

Among them, connecting plate assemblies 303 are provided on both sides of the lower surfaces in the length direction of the water pump 201. The levelness of the water pump 201 can be adjusted by adjusting the connection positions of the strip holes 312 on both sides.

As shown in Figures 2 and 5, in another embodiment of the present application, the working machine also includes a power take-off 202. The power take-off 202 is connected to the water pump 201 through a shaft, and the power take-off 202 is installed on the frame 300. Along the length direction of the vehicle frame 300, the water pump 201 is placed between the power take-off 202 and the cab 100.

Specifically, the output end of the power take-off 202 is connected to the water pump 201 through the first input shaft 211 to drive the water pump 201 to work. The power take-off 202 is placed at the front end of the vehicle frame 300 and is connected to the vehicle frame 300. The water pump 201 is placed between the power take-off 202 and the cab 100. Compared with the prior art arrangement in which the water pump 201 is placed at the middle and rear end of the vehicle frame 300 and the power take-off 202 is placed between the water pump 201 and the cab 100, the distance between the power take-off 202 and the water pump 201 is shortened. The length of the first input shaft 211 achieves the effect of higher power transmission accuracy and better transmission efficiency between the power take-off 202 and the water pump 201.

Continuing to refer to FIG. 5 , the power take-off 202 is placed under the water pump 201 . For example, the water pump 201 is suspended above the vehicle frame 300 , and the power take-off 202 is placed in the vehicle frame 300 . In some embodiments of the present application, the power take-off 202 may be a broken-shaft power take-off 202, which reduces costs and improves transmission efficiency. Of course, the power take-off 202 can also be placed below the vehicle frame 300, which is selected according to the actual installation situation.

Specifically, the water pump 201 is placed between the installation position of the boom assembly 400 on the vehicle frame 300 and the cab 100 , and the power take-off 202 is placed between the water pump 201 and the boom assembly 400 .

Specifically, in other embodiments of the present application, the working machine also includes an engine 203. The engine 203 is connected to the power take-off 202 through a shaft, and the water pump 201 is placed between the engine 203 and the power take-off 202.

That is to say, the engine 203 transmits power to the power take-off 202 through the first output shaft 213, and the power take-off 202 transmits the obtained power to the water pump 201 through the first input shaft 211, and to the water pump 201 through the second input shaft 212. Drive axle. The power take-off 202 and the water pump 201 are arranged up and down.

For example, the engine 203 is installed on the vehicle frame 300 and placed below the cab 100 . The engine is connected to the power take-off 202 through the first output shaft 213. The first output shaft 213 is parallel to the first input shaft 211 , and the connection end of the first output shaft 213 and the power take-off 202 is on the same side of the power take-off 202 as the connection end of the first input shaft 211 and the power take-off 202 . Moreover, the length of the first output shaft 213 is greater than the length of the first input shaft 211 , so the water pump 201 is placed between the engine 203 and the power take-off 202 .

Further, in some embodiments of the present application, the working machine also includes a hydraulic pump 204. The hydraulic pump 204 is connected to the power take-off 202, and the hydraulic pump 204 is placed between the power take-off 202 and the water pump 201. That is to say, the engine transmits power to the power take-off 202, and the power take-off 202 is directly connected to the hydraulic pump 204 for driving the hydraulic pump 204 to provide power to the hydraulic system. The water pump 201, the hydraulic pump 204, and the engine 203 are all placed on the same side of the power take-off 202. That is to say, the first input shaft 211 , the hydraulic pump 204 and the first output shaft 213 are placed on one side of the power take-off 202 , and the second input shaft 212 is placed on the other side of the power take-off 202 . Wherein, the hydraulic pump 204 is arranged on one side of the first input shaft 211 of the power take-off 202, and along the height direction of the vehicle frame 300, the hydraulic pump 204 is placed between the first output shaft 213 and the first input shaft 211. In other words, the shaft connecting the water pump 201 and the power take-off 202 , the shaft connecting the hydraulic pump 204 and the power take-off 202 , and the shaft connecting the engine 203 and the power take-off 202 are sequentially arranged along the height direction of the vehicle frame 300 .

For example, the hydraulic pump 204 is plugged directly into the power take-off 202 . This makes the power system layout of the working machinery more compact and reasonable. Among them, the power system includes an engine 203, a power take-off 202, a water pump 201, a hydraulic pump 204, a shaft, etc. Wherein, the hydraulic pump 204 may be a dual oil pump.

Among them, compared with the sandwich power take-off used in the prior art, when the engine 203 is connected to the hydraulic pump 204, the engine 203 is connected to the sandwich power take-off through a shaft, and the sandwich power take-off is connected to the hydraulic pump 204 through a shaft. Therefore, when The hydraulic pump 204 and the water pump 201 require two sandwich power take-offs to realize force transmission. This application uses a broken shaft power take-off, which is connected to the hydraulic pump 204 and the water pump 201 at the same time. This saves the cost of the power take-off 202 and reduces the space occupied by the power take-off 202, making the layout more reasonable and compact.

As shown in Figure 3, for the vehicle frame 300 of the present application, in some embodiments of the present application, the vehicle frame 300 includes a chassis 301 and a sub-beam 302. The sub-beam 302 is installed on the chassis 301, and the water pump 201 passes through the connecting plate. The assembly 303 is connected to the sub-frame 302, and the power take-off 202 is connected to the chassis 301.

For example, the lower surface of the sub-beam 302 is welded to the upper surface of the chassis 301, and the side surfaces of the sub-beam 302 and the side surfaces of the chassis 301 are connected through the connection base 304 to improve the connection strength. The connecting plate assembly 303 is connected to the side of the sub-beam 302. The length direction of the water pump 201 spans the width direction of the sub-beam 302 and is placed above the sub-beam 302 to ensure the integrity of the sub-beam 302 and thereby improve the stiffness of the sub-beam 302. The sub-frame 302 extends from the water pump 201 to the end of the chassis 301 .

Compared with the existing installation method in which the water pump 201 is arranged in the hollow area in the middle of the sub-beam 302, the water pump 201 is placed above the sub-beam 302, and the installation space of the sub-beam 302 does not limit the installation of the water pump 201. Especially when the high-pressure large water pump 201 is installed on the sub-beam 302, the large hollow area of the existing sub-beam 302 will cause a decrease in the overall stiffness of the sub-beam 302. When the fire extinguishing height of the boom assembly 400 reaches more than 80 meters or more than 100 meters, the end stability of the installation of the boom assembly 400 and the vehicle frame 300 is weak. This application ensures the continuous integrity of the overall structure of the sub-beam 302 and the installation strength of the sub-beam 302. When the fire-extinguishing height of the boom assembly 400 reaches more than 80 meters or more than 100 meters, the boom assembly 400 and the vehicle frame The installation end of 300 is connected firmly, which makes the whole working machinery more stable.

In some embodiments of the present application, for the sub-beam, the sub-beam adopts a square tube structure to increase its strength. The sub-beam extends from the rear of the chassis to the front end of the chassis. On the side of the sub-beam close to the front end of the chassis, which is the driving side, the height of the sub-beam is reduced to facilitate the installation of the water pump.

Further, in some specific embodiments of the present application, the chassis 301 includes a first connecting beam 320 and a second connecting beam 321. The power take-off 202 is disposed between the first connecting beam 320 and the second connecting beam 321. A sub-beam 302 is provided above the beam 320 and the second connecting beam 321, and the sub-beam 302 is connected to the power take-off 202.

As shown in Figure 6, the chassis 301 also includes a cross beam 322. The first connecting beam 320 and the second connecting beam 321 are arranged in parallel along the length direction of the working machine. The cross beam 322 is provided between the first connecting beam 320 and the second connecting beam 321. The first connecting beam 320 and the second connecting beam 321 are connected as a whole. The auxiliary beam 302 includes a third connecting beam and a fourth connecting beam. The third connecting beam is placed on the first connecting beam 320 and is disposed along the length direction of the first connecting beam 320 . The fourth connecting beam is placed on the second connecting beam 321, and the fourth connecting beam is arranged along the length direction of the second connecting beam 321. A connecting transverse plate is provided between the third connecting beam and the fourth connecting beam, and the third connecting beam and the fourth connecting beam are parallel to ensure the stiffness of the sub-beam 302.

Among them, the power take-off 202 penetrates the chassis 301 and the sub-beam 302 up and down. The power take-off 202 is placed between adjacent beams 322. One side of the power take-off 202 is connected to the third connecting beam, and the other side of the power take-off 202 is connected to the third connecting beam. Connected to the fourth connecting beam. Furthermore, the sub-beam 302 is connected to the power take-off 202 through a hooking plate 210. One end of the hooking plate 210 is connected to the upper surface of the sub-beam 302. The hooking plate 210 is placed on the first connecting beam 320 and the third connecting beam 320 of the chassis 301. Between the two connecting beams 321, the other end of the hooking plate 210 is connected to the power take-off 202. In other words, the subframe 302 bears the downward force of the power take-off 202 .

Continuing to refer to Figure 1, in an optional embodiment of the present application, the vehicle frame 300 also includes a body assembly 305. The body assembly 305 is installed above the sub-frame 302, and the body assembly 305 can be connected to the chassis 301. As shown in FIG. 7 , along the length direction of the vehicle frame 300 , one end of the body assembly 305 is installed on the sub-beam 302 close to the power take-off 202 , and the other end of the body assembly 305 is installed on the end of the sub-beam 302 . The arm assembly 400 is installed on the body assembly 305 and placed at the end of the body assembly 305 away from the power take-off 202 .

Specifically, the arm assembly 400 includes a turntable 401 and a telescopic arm 402. One end of the telescopic arm 402 is installed on the turntable 401. The turntable 401 is installed on the body assembly 305 and placed at the end of the body assembly 305. Among them, the cab 100 is installed at the front end of the chassis 301, and the turntable 401 and the cab 100 are placed at both ends of the working machine. The end of the telescopic arm 402 is connected to the turntable 401. In the contracted state, the beginning of the telescopic arm 402 is placed above the cab 100. When the telescopic arm 402 extends, the turntable 401 receives force, and the box-type structure of the body assembly 305 is more conducive to improving the installation strength of the sub-frame 302 and the stability of the extension of the telescopic arm 402.

In some other optional embodiments of the present application, the working machine further includes a water pipe. The water pipe is provided on the boom assembly 400 , and the water inlet of the water pipe is connected to the water pump 201 . The water pipe follows the extension of the telescopic arm 402 of the boom assembly 400 and extends to the height of the fire to extinguish the fire. The operating machinery is an elevated jet fire truck.

For example, the operating machinery can be a fire truck, a drainage truck, a drainage truck, a dust removal truck, a high-altitude cleaning truck, etc. Among them, fire trucks can specifically be elevated jet fire trucks, aerial fire trucks, foam fire trucks, emergency rescue fire trucks, etc. When the working machine is an ascending fire truck, the boom assembly 400 can be an ascending boom, and the water pump 201 is connected to the water pipe to extinguish the fire. Of course, when the working machine is a dust removal truck, a drainage truck, etc., a water tank can be provided on the chassis 301 of the working machine. The water inlet of the water pump 201 is connected to the water tank, and the water outlet and water pipe of the water pump 201 are connected to the water spray mechanism for water spraying. .

Overall, the body assembly 305 is assembled on the chassis 301 and is connected to the chassis 301 and the sub-frame 302. The arm assembly 400 is assembled on the body assembly 305. Between the first output shaft 213 and the second input shaft 212 of the chassis 301 A power take-off 202 is provided between the cab 100 and the power take-off 202. The power take-off 202 is connected to the water pump 201 through the first input shaft 211 for power input of the water pump 201. The water pump 201 is arranged between the cab 100 and the power take-off 202. The engine 203 is connected to the power take-off 202 through the first output shaft 213, and the power take-off 202 is connected to the transaxle through the second input shaft 212 to drive the wheels to rotate. The way in which the water pump 301 is arranged in front of the sub-beam 302 ensures the structural integrity of the sub-beam 302, which is conducive to improving the structural rigidity and improving the stability of the extremely high telescopic arm 402 during fire extinguishing. The power take-off 202 can adopt a shaft-breaking power take-off method, which is beneficial to reducing costs and improving transmission efficiency.

The working machine provided by this application ensures the integrity of the overall structure of the frame 300 by installing the water pump 201 above the frame 300, and improves the rigidity of the frame 300 compared to the existing technology; the water pump 201 is placed on the frame 300 The distance between the side close to the cab 100 and the boom assembly 400 increases, which improves the stability of the working machine when the boom assembly 400 is deployed. When the frame 300 is rigidly lifted, the boom assembly with a higher extension height The connection between 400 and frame 300 is more stable.

The working machine provided by this application has a water pump 201 and a power take-off 202 installed on the frame 300. The water pump 201 is placed between the power take-off 202 and the cab 100 along the length direction of the frame 300, thereby shortening the distance between the water pump 201 and the cab 100. The connection length of the shaft between the power take-offs 202 improves the transmission efficiency of the water pump 201 and the power take-off 202.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the embodiments of the present application.

Claims (12)

1. A working machine, including:

   frame;

   A water pump, the water pump is installed on the vehicle frame;

   Power take-off, the power take-off is connected to the water pump through a shaft, the power take-off is installed on the frame, along the length direction of the frame, the water pump is placed between the power take-off and the water pump. between the cabs of the above-mentioned work machinery.
2. The work machine according to claim 1, further comprising a hydraulic pump connected to the power take-off.
3. The working machine according to claim 1 or 2, further comprising a boom assembly, the boom assembly is installed on the vehicle frame, and the water pump is placed at the installation position of the boom assembly on the vehicle frame. and the cab, and the power take-off is placed between the water pump and the boom assembly.
4. The work machine of claim 3, further comprising a connecting plate assembly connected between the vehicle frame and the water pump so that the water pump is suspended above the vehicle frame.
5. The work machine of claim 4, wherein the connecting plate assembly includes a first side plate and a second side plate;

   The first side plate is connected to the second side plate at an angle, and the first side plate is provided with a strip hole. The strip hole is used to connect with the vehicle frame. The strip hole is arranged along the The height direction setting of the frame;

   The second side plate is connected to the bottom surface of the water pump.
6. The working machine according to claim 2, further comprising an engine, the engine and the power take-off are connected through a shaft, and the water pump is placed between the engine and the power take-off along the length direction of the frame. between.
7. The working machine according to claim 6, wherein the water pump, the hydraulic pump and the engine are all placed on the same side of the power take-off.
8. The working machine according to claim 6 or 7, wherein the connecting shaft of the water pump and the power take-off, the shaft connecting the hydraulic pump and the power take-off are arranged in sequence along the height direction of the vehicle frame. The shaft connecting the engine to the power take-off.
9. The work machine according to claim 4 or 5, wherein the vehicle frame includes a chassis and a sub-beam, the sub-beam is installed on the chassis, and the water pump is suspended from the sub-beam through the connecting plate assembly. Above the beam, the power take-off is connected to the sub-beam.
10. The work machine according to claim 9, wherein the chassis includes a first connecting beam and a second connecting beam, the power take-off is disposed between the first connecting beam and the second connecting beam, and the The sub-beam is arranged above the first connecting beam and the second connecting beam.
11. The work machine according to claim 9, wherein the frame further includes a body assembly, the body assembly is installed above the sub-beam, and along the length direction of the frame, the body assembly has One end is installed on the sub-beam close to the power take-off, and the other end of the vehicle body assembly is installed on the end of the sub-beam;

    Wherein, the arm frame assembly is installed on the vehicle body assembly and placed at an end of the vehicle body assembly away from the power take-off.
12. The working machine according to claim 3, further comprising a water pipe, the water pipe is arranged on the boom assembly, and the water inlet of the water pipe is connected to the water pump.

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