CN220687463U

CN220687463U - Engine system for hydraulic excavator and hydraulic excavator

Info

Publication number: CN220687463U
Application number: CN202322503799.3U
Authority: CN
Inventors: 沈嘉懿; 高金鹏; 陈楚枫
Original assignee: Zoomlion Earth Moving Machinery Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Current assignee: Zoomlion Earth Moving Machinery Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-03-29
Anticipated expiration: 2033-09-14

Abstract

The application relates to the field of hydraulic excavators, and discloses an engine system for a hydraulic excavator and the hydraulic excavator, wherein the engine system comprises: a radiator module including a frame and a radiator built in the frame; an engine air intake system comprising an air cleaner and an oil bath cleaner; wherein, the air filter and the oil bath filter are integrally arranged outside the frame; a hydraulic excavator includes the engine system. The engine shed can improve the cleanliness of the engine shed of the engine and increase the installation universality of the air filter and the oil bath filter in the air inlet system of the engine.

Description

Engine system for hydraulic excavator and hydraulic excavator

Technical Field

The application belongs to the field of hydraulic excavators, and particularly relates to an engine system for a hydraulic excavator and the hydraulic excavator.

Background

The engine of the hydraulic excavator needs to be supplemented with clean air in order to achieve optimal engine performance. In the existing air intake system of the engine, an air filter is arranged in a machine shed provided with the engine, filtered dust and the like directly fall into the machine shed, and the cleanliness of the machine shed is affected. Further, the individual filters of the intake system are arranged in a dispersed manner, resulting in poor installability and installation versatility of the individual filters of the intake system.

Disclosure of Invention

The utility model provides an object provides an engine system and hydraulic shovel for hydraulic shovel, the cleanliness of the canopy that realizes engine system promotes, improves the mountability and the installation commonality of each filter of air intake system.

To achieve the above object, an aspect of the present application provides an engine system for a hydraulic excavator, the engine system comprising:

a radiator module including a frame and a radiator built in the frame;

an engine air intake system comprising an air cleaner and an oil bath cleaner;

wherein, air cleaner and oil bath formula filter are installed in the outside of frame in an organic whole.

In some embodiments, the air cleaner includes a dust exhaust port disposed on an air outlet side of the radiator module.

In some embodiments, the radiator module includes a fan for blowing air to the radiator, and the dust discharge port of the air cleaner is directed to the negative pressure side of the fan through a duct.

In some embodiments, an engine air intake system includes:

the integrated mounting bracket is used for mounting the air filter and the oil bath filter on the frame.

In some embodiments, the air filter and the oil bath filter are connected by a hose.

In some embodiments, the end of the hose is sealingly connected to both the air cleaner and the oil bath cleaner.

In some embodiments, the engine air intake system includes a swirl pre-filter that is mounted on an integral mounting bracket with both the air cleaner and the oil bath filter.

In some embodiments, the frame is a rectangular bracket, the integral mounting bracket is disposed on a top wall surface of the frame, the air cleaner is centrally mounted on the integral mounting bracket, and both sides of the air cleaner are provided with a cyclone pre-filter and an oil bath filter.

In some embodiments, the integral mounting bracket extends in a horizontal lateral direction of the frame, the air cleaner is disposed horizontally and extends in a horizontal longitudinal direction of the frame, and the swirl pre-filter and the oil bath filter are disposed vertically.

A second aspect of the present application provides a hydraulic excavator comprising the engine system for a hydraulic excavator described above.

Through the technical scheme, the air filter and the oil bath filter in the engine system are arranged outside the frame which belongs to the radiator module and is internally provided with the radiator, dust exhaust pollution of the air filter to a machine shed is avoided, and mountability and mounting universality of the air filter and the oil bath filter in the engine system are improved through an integral mounting mode of the filter and the frame.

Additional features and advantages of embodiments of the present application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the description serve to explain, without limitation, the embodiments of the present application. Other figures may be made from the structures shown in these figures without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a partial view of an engine for a hydraulic excavator in a front view according to an embodiment of the present application;

fig. 2 is a partial view of an engine system for a hydraulic excavator in a rear view according to an embodiment of the present application.

Description of the reference numerals

1. Radiator module 2 wind scooper

3. Radiator 4 engine air intake system

5. Air filter 6 oil bath type filter

7. Dust exhaust port 8 fan

9. Swirl prefilter with integral mounting bracket 10

11. Frame

Detailed Description

The following detailed description of specific embodiments of the present application refers to the accompanying drawings. It should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application.

An engine system for a hydraulic excavator and a hydraulic excavator according to the present application are described below with reference to the accompanying drawings.

An engine system for a hydraulic excavator is disclosed. As shown in fig. 1 and 2, in one embodiment, an engine system for a hydraulic excavator includes:

the radiator module 1 includes a frame 11 and a radiator built in the frame 11;

an engine intake system 4 including an air cleaner 5 and an oil bath cleaner 6;

wherein the air cleaner 5 and the oil bath type cleaner 6 are integrally mounted to the outside of the frame 11.

In the engine system for a hydraulic excavator of the present embodiment, referring to fig. 1 and 2, by installing the air cleaner 5 at the upper portion of the frame 11, dust of the air cleaner 5 can be directly discharged outside the radiator module 1 to prevent a booth where the engine is installed from being contaminated. In addition, the air filter 5 and the oil bath filter 6 can be integrally mounted on the frame 11, thereby facilitating the mounting of the air filter 5 and the oil bath filter 6. The radiator module 1 further comprises a wind scooper 2 positioned in front of the radiator, and is used for guiding and filtering air entering the front of the radiator.

In comparison, in the engine system of the existing hydraulic excavator, the oil bath type filter 6 is installed outside the machine shed, the air filter 5 is installed inside the machine shed, impurities discharged by the air filter 5 can directly fall inside the machine shed, so that the cleanliness inside the machine shed is affected, the air filter is designed outside the machine shed in the application, dust discharge of the air filter can be avoided, and the cleanliness of the machine shed is improved.

The air cleaner 5 and the oil bath cleaner 6 for the engine system of the hydraulic excavator in the present embodiment are mounted above the frame 11, but the present application is not limited thereto. Depending on the specific hydraulic excavator type and its installation space constraints, the air filter 5 and the oil bath filter 6 for the engine system of the hydraulic excavator may also be provided laterally of the frame 11.

As shown in fig. 2, the air cleaner 5 includes a dust discharge port 7, and in particular, the dust discharge port 7 is disposed at the air outlet side of the radiator module 1. Therefore, in the air cleaner 5 of the present embodiment, after the air impurities come out from the dust exhaust port 7, the air impurities are taken away by the air flow at the air outlet of the radiator module 1, and the air impurities are not deposited in the booth and the cleanliness of the booth is improved as in the prior art.

As shown in fig. 1 and 2, the radiator module 1 includes a blower 8 for blowing air to the radiator 3, and the dust discharge port 7 of the air cleaner 5 is directed to the negative pressure side of the blower 8, i.e., the tuyere, through a vertical duct, see fig. 2. In fig. 2, the dust discharge opening 7 is guided downwards by a vertical duct, so that the discharged dust is more easily blown away backwards by the fan.

Further, when the air flow rate inside the air filter 5 is lower than the air flow rate on the negative pressure side of the fan 8, a pressure difference exists between the inside and the outside of the vertical pipeline, and the pressure difference brings additional outward suction to the air flow and dust in the vertical pipeline, so that dust is facilitated to be discharged, and part of impurities deposited inside the air filter 5 and incapable of being discharged are conveniently removed, so that the maintenance period of the air filter 5 is prolonged.

As shown in fig. 1 and 2, the engine intake system 4 of the present embodiment includes: the integral mounting bracket 9, the air cleaner 5 and the oil bath cleaner 6 are mounted on the frame 11 through the integral mounting bracket 9. Because in the existing design, the oil bath type filter 6 and the air filter 5 are respectively arranged inside and outside the machine shed, the oil bath type filter 6 and the air filter 5 need different mounting brackets to realize the mounting, the design period is long, the manufacturing cost is high, and the mounting is complex. At the same time, the oil bath filter 6 and the air filter 5 are subjected to external excitation forces of different characteristics depending on the installation locations, thereby obtaining different vibration characteristics. When the hydraulic excavator works, larger vibration can occur, so that connection of the air path connecting piece connecting the oil bath filter 6 and the air filter 5 is easy to loosen, air tightness of an air inlet system can be affected when the loosening is serious, air inlet quality of an engine is poor, and service life of the engine is affected. The integral mounting bracket 9 of the embodiment can realize integral mounting of the oil bath filter 6 and the air filter 5, reduce the number of the mounting brackets, the overall design period, the manufacturing cost and the mounting difficulty, and simultaneously increase the mounting universality of the oil bath filter 6 and the air filter 5. In addition, because the oil bath filter 6 and the air filter 5 are integrally arranged on the integral mounting bracket 9 and are only influenced by external excitation force with single characteristic, the pulling of vibration on the air path connecting piece between the oil bath filter 6 and the air filter 5 can be reduced, the air tightness of an air inlet system and the air inlet quality of an engine are ensured, and the service life of the engine is prolonged. Of course, a damping gasket can be additionally arranged between the air filter 5 and the oil bath filter 6, the integral mounting bracket 9 and the frame 11, so that the influence of vibration conditions on the air filter 5 and the oil bath filter 6 can be further reduced.

As shown in fig. 1, the air cleaner 5 and the oil bath cleaner 6 of the present embodiment are connected to each other by a rubber pipe. Fluid communication between the air filter 5 and the oil bath filter 6 can be achieved by a hose connection. In addition, due to the elasticity and good air tightness of the rubber tube, the air filter 5 and the oil bath filter 6 can be ensured to be insensitive to vibration, and meanwhile, the air tightness between the air filter 5 and the oil bath filter 6 can be ensured. Of course, the rubber tube between the air filter 5 and the oil bath filter 6 can be replaced by a gas path connecting piece such as a PVC tube.

As shown in fig. 1 and 2, the end of the hose of the present embodiment is hermetically connected to both the air cleaner 5 and the oil bath cleaner 6. Thereby guaranteeing the air tightness of the air inlet system and the air inlet quality of the engine. Of course, the air filter 5 can also be integrally designed with the oil bath filter 6 to realize direct air path communication.

As shown in fig. 1 and 2, the engine intake system 4 of the present embodiment includes a swirl pre-filter 10, and the swirl pre-filter 10, the air cleaner 5, and the oil bath cleaner 6 are mounted on an integral mounting bracket 9. The cyclone pre-filter 10 is arranged so that most of the dust in the air is centrifugally discharged to the dust collecting part at the tail end of the cyclone shell of the cyclone pre-filter 10 along the wall surface of the cyclone shell of the cyclone pre-filter 10 before the air enters the air filter 5 and the oil bath filter 6, thereby reducing the filtering burden and blocking condition of the air filter 5 and the oil bath filter 6. The cyclone prefilter 10 is mounted on the integral mounting bracket 9, so that the connection between the cyclone prefilter 10 and the air filter 5 is insensitive to vibration, and the connection stability is improved. Of course, the swirl prefilter 10 may be replaced by a filter such as an electrostatic filter.

As shown in fig. 1 and 2, the frame 11 of the present embodiment is a rectangular bracket, the integral mounting bracket 9 is provided on the top wall surface of the frame 11, the air cleaner 5 is centrally mounted on the integral mounting bracket 9, and the swirl pre-filter 10 and the oil bath filter 6 are arranged on both sides of the air cleaner 5. Compared with the prior art, the arrangement of the air filter 5, the cyclone pre-filter 10 and the oil bath filter 6 inside and outside the booth can improve the compactness of each component, the mass of the whole body formed by the compact arrangement of each component is larger than that of each component, and the whole amplitude of the whole body is smaller relative to the scattered arrangement under the external exciting force, so that the sensitivity of the air filter 5, the cyclone pre-filter 10 and the oil bath filter 6 to vibration is reduced, and meanwhile, the installability of the air filter 5, the cyclone pre-filter 10 and the oil bath filter 6 can be improved in the compact arrangement.

Referring to fig. 1 and 2, the integral mounting bracket 9 of the present embodiment extends in the horizontal lateral direction of the frame 11, the air cleaner 5 is horizontally arranged and extends in the horizontal longitudinal direction of the frame 11, and the swirl pre-filter 10 and the oil bath filter 6 are vertically arranged. Compared with the prior art, the air filter 5, the cyclone pre-filter 10 and the oil bath filter 6 are respectively arranged inside and outside the machine shed, and referring to fig. 1, the compactness of each component can be further increased and the vibration sensitivity is reduced by attaching the integral mounting bracket 9 to the frame 11 to realize integral mounting. In addition, the air filter 5 is horizontally arranged and extends along the horizontal longitudinal direction of the frame 11, and the design of the cyclone pre-filter 10 and the oil bath filter 6 along the vertical direction can ensure the stable operation of the oil bath filter 6 while facilitating the access of the engine air intake system 4 to the engine.

The present embodiment also provides a hydraulic excavator including the engine system as described above.

Compared with the prior art, the dust exhaust port 7 of the air filter 5 of the hydraulic excavator is arranged at the air outlet of the radiator module 1, when the hydraulic excavator works, impurities filtered by the air filter 5 can be directly taken away by air flow at the air outlet of the fan 8, so that the cleanliness in a machine shed is ensured, and the partial impurities which cannot be discharged and deposited inside the air filter 5 are cleared by utilizing the pressure difference between the fan 8 and the dust exhaust port 7 by arranging a pipeline between the dust exhaust port 7 and the air outlet of the fan 9, so that the maintenance period of the air filter 5 is prolonged. The maintenance period of the air cleaner 5 is increased;

compared with the prior art, the hydraulic excavator integrates the air inlet system and the radiator into the same device, so that the design steps are effectively simplified, and meanwhile, the complexity of installing each filter in the air inlet system is reduced;

compared with the prior art, the hydraulic excavator integrates the air filter 5, the cyclone prefilter 10 and the oil bath filter 6, ensures that the vibration frequency among the air filter 5, the cyclone prefilter 10 and the oil bath filter 6 is consistent, is not easy to loosen, and effectively protects the air tightness of an air inlet system of the hydraulic excavator.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. An engine system for a hydraulic excavator, the engine system comprising:

a radiator module (1) comprising a frame (11) and a radiator (3) built into the frame (11);

an engine air intake system (4) comprising an air cleaner (5) and an oil bath cleaner (6);

wherein the air cleaner (5) and the oil bath cleaner (6) are integrally mounted outside the frame (11).

2. The engine system for a hydraulic excavator according to claim 1, characterized in that the air cleaner (5) comprises a dust discharge opening (7), which dust discharge opening (7) is placed on the air outlet side of the radiator module (1).

3. Engine system for a hydraulic excavator according to claim 2, characterized in that the radiator module (1) comprises a fan (8) for blowing air to the radiator (3), the dust discharge opening (7) of the air cleaner (5) being led via a duct to the negative pressure side of the fan (8).

4. An engine system for a hydraulic excavator according to any one of claims 1-3, characterized in that the engine intake system (4) comprises:

and the air filter (5) and the oil bath filter (6) are arranged on the frame (11) through the integral mounting bracket (9).

5. The engine system for a hydraulic excavator according to claim 4, characterized in that the air filter (5) and the oil bath filter (6) are connected by a hose.

6. The engine system for a hydraulic excavator according to claim 5, characterized in that the end of the hose is in sealing connection with both the air filter (5) and the oil bath filter (6).

7. The engine system for a hydraulic excavator according to claim 4, characterized in that the engine intake system (4) comprises a swirl pre-filter (10), the swirl pre-filter (10) being mounted on the integral mounting bracket (9) with both the air filter (5) and the oil bath filter (6).

8. The engine system for a hydraulic excavator according to claim 7, characterized in that the frame (11) is a rectangular bracket, the integral mounting bracket (9) is provided on a top wall surface of the frame (11), the air cleaner (5) is centrally mounted on the integral mounting bracket (9), both sides of the air cleaner (5) are provided with the swirl pre-filter (10) and the oil bath filter (6).

9. The engine system for a hydraulic excavator according to claim 8, characterized in that the integral mounting bracket (9) extends horizontally transversely of the frame (11), the air filter (5) is arranged horizontally and longitudinally of the frame (11), the swirl pre-filter (10) and the oil bath filter (6) are arranged vertically.

10. A hydraulic excavator, characterized in that it comprises an engine system for a hydraulic excavator according to any one of claims 1-9.