A general-purpose engine-driven work machine

Abstract

This utility model discloses a universal engine-driven work machine, including a universal engine, a work machine, and an open frame for supporting the universal engine and the work machine. The universal engine includes a gas treatment device and an engine body mainly composed of a cylinder block and a crankcase. The engine body is connected to the open frame via a shock absorber. The gas treatment device is flexibly connected to the engine body via a pipe, and the mounting part of the gas treatment device is fixedly connected to the open frame. This solution solves the problem of easy damage to the gas treatment device in existing work machines.

Description

Technical Field

[0001] This utility model relates to general-purpose engine-driven work machinery. Background Technology

[0002] General-purpose engine-driven work machinery refers to machinery that uses a general-purpose engine as its power source, such as common gasoline generators and gasoline engine water pumps. Existing general-purpose engine-driven work machinery includes a frame, a general-purpose engine, and a work machine. The frame has mounting cavities to accommodate both the general-purpose engine and the work machine, which are connected to the frame. The general-purpose engine generates vibration during operation, and the work machine is also susceptible to vibration and impact during transportation. Therefore, the bottom of the general-purpose engine is connected to the frame via shock-absorbing seats to reduce the transmission of vibrations through the frame and to minimize damage to the engine caused by vibrations and impacts during transport.

[0003] Chinese patent document CN222229293U discloses a vibration damping base and a generator. The vibration damping base includes a dynamic mounting component, a static mounting component, and a vibration damping pad. The vibration damping pad is connected between the dynamic mounting component and the static mounting component. The dynamic mounting component is fixedly provided with a first limiting part, and the static mounting component is fixedly provided with a second limiting part that cooperates with the first limiting part. The second limiting part is used to at least limit the lateral and longitudinal displacement of the dynamic mounting component. This technical solution reduces, to a certain extent, the damage caused by vibration and transportation impacts.

[0004] Existing general-purpose engines consist primarily of an engine block comprised of a crankcase and cylinder block, along with gas treatment devices such as air filters and mufflers. These gas treatment devices are directly connected and fixed to the engine block, which supports them. In actual use, when the machinery is operating under high load, the vibration amplitude and frequency of the general-purpose engine increase significantly. At this time, it has been found that thin-walled gas treatment devices such as air filters and mufflers are prone to damage, causing the machinery to malfunction. Utility Model Content

[0005] The purpose of this invention is to provide a universal engine-driven operating machine to solve the problem of easy damage to the gas handling device in existing operating machines.

[0006] To achieve the above objectives, the basic solution of this utility model provides a general-purpose engine-driven work machine, including a general-purpose engine, a work machine, and an open frame for supporting the general-purpose engine and the work machine; the general-purpose engine includes a gas treatment device and an engine body mainly composed of a cylinder block and a crankcase, the engine body is connected to the open frame through a shock absorber, the gas treatment device is flexibly connected to the engine body through a pipe, and the mounting part of the gas treatment device is connected and fixed to the open frame.

[0007] In this scheme, an open frame refers to a frame without a closed outer shell, so that the general-purpose engine and the work machine are exposed when mounted on the frame.

[0008] The beneficial effects of this basic solution are as follows: When this solution is adopted, the vibration generated by the engine body during operation is absorbed by the shock absorber, thus reducing the vibration impact on the open frame. Simultaneously, the gas treatment device is connected and fixed through the open frame, further minimizing the vibration transmitted from the engine body to the gas treatment device. Furthermore, the gas treatment device is flexibly connected to the engine body via pipes, further reducing the vibration transmitted from the engine body to the gas treatment device. This results in a significantly reduced impact on the gas treatment device from the engine body's vibration during operation. Especially under high-load operating conditions, this can substantially reduce the vibration amplitude and frequency of the gas treatment device, thereby significantly reducing the likelihood of damage and helping to lower the maintenance costs of the operating machinery.

[0009] Preferably, the mounting portion of the gas treatment device is flexibly connected to the open-frame rack. This arrangement further reduces vibration transmission between the gas treatment device and the open-frame rack, thereby helping to further reduce the likelihood of damage to the gas treatment device under vibration.

[0010] Preferably, the mounting section of the gas processing device is flexibly connected to the open frame via shock-absorbing pads. This arrangement, using shock-absorbing pads to achieve a flexible connection between the gas processing device and the open frame, simplifies the structure and reduces manufacturing costs.

[0011] Preferably, the pipe is a flexible pipe. This arrangement allows for a flexible connection between the gas treatment device and the engine body while simultaneously enabling ventilation, eliminating the need for a separate structure for this flexible connection. This simplifies the structure and reduces costs.

[0012] Preferably, the gas treatment device is an air filter. This arrangement helps prevent damage to the air filter, which supplies filtered fresh air to the engine block, thus ensuring the normal operation of the engine block and improving the reliability of the machinery.

[0013] Preferably, the open frame includes an open frame unit formed by horizontal and vertical support rods for accommodating a general-purpose engine and a work machine. The mounting portion of the air filter is connected to the horizontal and / or vertical support rods via shock-absorbing pads. This arrangement simplifies the structure of the open frame and facilitates the connection and operation of the air filter, thereby simplifying the manufacturing of the work machine.

[0014] Preferably, the air inlet of the air filter is positioned facing the inside of the open frame unit. This arrangement ensures that the air filter primarily draws air from the inside of the open frame unit, preventing rain or snow from entering the air filter and causing malfunctions such as engine stalling during rain or snow, thus improving the reliability of the machinery.

[0015] Preferably, a fuel supply device is located at the top of the open frame, and the air filter is located directly below the fuel supply device. This arrangement, which layers the general-purpose engine, fuel supply device, and gas handling device and supports them with the frame, allows for efficient use of the frame's space and a more compact structure for the machine.

[0016] Preferably, the engine block is tilted, and the air filter is located below the cylinder block. This arrangement allows the air filter to fully utilize the space created below the cylinder block when it is tilted, thus significantly reducing the likelihood of air filter damage and making the machine more compact.

[0017] This utility model has the following beneficial effects:

[0018] 1. By adopting this solution, the vibration of the gas treatment device caused by the engine body is greatly reduced during the operation of the machine, thereby significantly reducing the possibility of damage to the gas treatment device and improving the reliability of the machine.

[0019] 2. This solution tilts the engine block and places the gas treatment device in the space below the block, which greatly reduces the chance of damage to the gas treatment device and also improves the structural compactness of the machine. Attached Figure Description

[0020] Figure 1This is a schematic diagram of a first embodiment of a universal engine-driven work machine according to the present invention;

[0021] Figure 2 for Figure 1 A top view omitting the fuel supply device;

[0022] Figure 3 for Figure 1 A cross-sectional view (AA) of the gas handling unit and frame.

[0023] Figure 4 This is a schematic diagram of a second embodiment of a universal engine-driven work machine according to the present invention. Detailed Implementation

[0024] Those skilled in the art will understand that the gas treatment device for a general-purpose engine in this solution refers to a device for treating gases, such as the air filter of the intake system and the muffler of the exhaust system of a general-purpose engine. Those skilled in the art will also understand that the working machine in this solution can be specifically configured according to the different functions of the working machinery. For example, the working machine can be a power generation device mainly composed of a stator and rotor, or it can be a centrifugal pump device with a water pumping function. Those skilled in the art will also understand that the shock absorber in this solution can adopt the shock absorber disclosed in Chinese patent document CN222229293U.

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings include: open frame 1, fuel supply device 2, pipe 3, air filter 4, air inlet 41, mounting part 42, engine body 5, cylinder block 51, crankcase 52, shock absorber 6, work machine 7, shock absorber pad 8, fastener 9.

[0027] Example 1: Basic as shown in the attached document Figure 1 , Figure 2 and Figure 3The diagram shows a general-purpose engine-driven work machine, comprising a general-purpose engine, a work machine 7, and an open frame 1 for supporting the general-purpose engine and the work machine. The general-purpose engine is connected to the open frame 1, the work machine 7 is connected to the open frame 1, and the work machine 7 is connected to the general-purpose engine via a transmission connection. The general-purpose engine includes a gas treatment device and an engine body 5 mainly composed of a cylinder block 51 and a crankcase 52. The engine body 5 is connected to the open frame 1 via a shock absorber 6. The gas treatment device is flexibly connected to the engine body 5 via a pipe 3, and the mounting part of the gas treatment device is connected and fixed to the open frame 1. In this embodiment, it is preferable that the mounting part of the gas treatment device is flexibly connected to the open frame 1. More preferably, the pipe 3 is a flexible pipe 3. In this embodiment, the gas treatment device is an air filter 4. In this embodiment, the cylinder block 51 is inclined, and the cylinder block 51 and the crankcase 52 are integrally formed. The bottom of the crankcase 52 is connected to the bottom of the open frame 1 via the shock absorber 6.

[0028] In this embodiment, the open frame 1 includes an open frame unit formed by horizontal and vertical support rods for accommodating the general-purpose engine and the work machine. The horizontal and vertical support rods are interconnected to form a roughly cuboid support frame, thus making the open frame unit cuboid in shape. This allows the open frame 1 to both support and protect the general-purpose engine and the work machine 7, while also making the overall outline of the work machine more regular, facilitating the stacking of the work machine. In this embodiment, a fuel supply device 2 is provided at the top of the open frame 1, and an air filter 4 is located directly below the fuel supply device 2. Specifically, the mounting part 42 of the air filter 4 is connected and fixed to the open frame 1 by shock-absorbing pads 8 and fasteners 9. Specifically, the mounting part 42 is provided with a connection hole, the shock-absorbing pad 8 is embedded in the connection hole, and the fastener 9 passes through the shock-absorbing pad 8 and is connected and fixed to the frame. Thus, the flexible connection between the mounting part 42 and the open frame 1 is achieved through the deformation of the shock-absorbing pad 8 under stress, reducing the transmission of vibration. In this embodiment, the air inlet 41 of the air filter 4 is positioned facing the inner side of the receiving cavity. In this embodiment, the working machine 7 is a power generation device mainly composed of a stator and a rotor, thus making the main function of the working machine to convert mechanical energy into electrical energy.

[0029] When the operating machinery is working, the vibration transmitted from the engine body 5 to the open frame 1 through the shock absorber 6 is less, and the vibration transmitted from the engine body 5 to the gas treatment device through the pipe 3 is also less. As a result, the gas treatment device is subjected to less vibration when it is installed on the open frame 1, thereby reducing the possibility of damage to the gas treatment device under vibration and improving the reliability of the operating machinery.

[0030] Example 2: Figure 4As shown, the difference from Embodiment 1 is that the air filter 4a is located below the inclined cylinder 51. This arrangement allows the air filter 4a to fully utilize the space formed between the cylinder 51 and the open frame 1 when the cylinder 51 is inclined, thereby significantly reducing the likelihood of damage to the air filter 4a and improving the structural compactness of the machine.

[0031] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A general-purpose engine-driven work machine comprising a general-purpose engine, a work machine, and an open frame for supporting the general-purpose engine and the work machine; the general-purpose engine comprising a gas processing device and an engine main body consisting mainly of a cylinder block and a crankcase, the engine main body being connected to the open frame by a vibration-damping mount, characterized by: The gas treatment device is flexibly connected to the engine body via a pipeline, and the mounting part of the gas treatment device is connected and fixed to the open frame.

2. The general-purpose engine-driven operating machinery according to claim 1, characterized in that: The mounting section of the gas processing device is flexibly connected to the open frame.

3. The general-purpose engine-driven working machinery according to claim 2, characterized in that: The mounting section of the gas processing device is flexibly connected to the open frame via shock-absorbing pads.

4. The general-purpose engine-driven working machinery according to claim 3, characterized in that: The pipeline is a flexible pipeline.

5. The general-purpose engine-driven working machinery according to claim 4, characterized in that: The gas processing device is an air filter.

6. The general-purpose engine-driven working machinery according to claim 5, characterized in that: The open frame includes an open frame unit for accommodating a general-purpose engine and a work machine, enclosed by horizontal and vertical support rods, and the air filter mounting portion is connected to the horizontal and / or vertical support rods via shock-absorbing pads.

7. The general-purpose engine-driven working machinery according to claim 6, characterized in that: The air inlet of the air filter is positioned facing the inside of the open frame unit.

8. The general-purpose engine-driven working machinery according to claim 7, characterized in that: A fuel supply device is located at the top of the open frame, and the air filter is located directly below the fuel supply device.

9. The general-purpose engine-driven working machinery according to claim 7, characterized in that: The engine block is tilted, and the air filter is located below the cylinder block.

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