CN211448288U

CN211448288U - Step type frame structure of side door of excavator

Info

Publication number: CN211448288U
Application number: CN201921861595.4U
Authority: CN
Inventors: 隽红亮; 刘丽辉; 马谦; 范虎鹏
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-09-08
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses an excavator side door step frame construction, it belongs to engineering machine tool technical field. The side door frame of the excavator overcomes the defects that the side door frame of the traditional excavator in the prior art cannot meet the requirements of the national emission standards, the rear view of a driver and the escape requirement of the rear side of a cab. Its major structure includes frame, left after-frame and right frame before a left side, one side of frame is connected with one side of left after-frame through left underbeam and left underbeam before a left side, and the opposite side of frame is connected with the one end of right frame through preceding baffle before a left side, the other end of right frame is still connected with left after-frame through the back baffle, be equipped with a stair structure before a left side on the frame. The utility model discloses mainly used engineering machine tool such as excavator is last.

Description

Step type frame structure of side door of excavator

The technical field is as follows:

the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to an excavator side door step frame construction.

Background art:

the excavator side door frame is a frame structure for the excavator to provide mounting support for the excavator side door. The left side of the hydraulic oil tank is positioned at the rear side of the cab, the right side of the hydraulic oil tank is positioned at the rear side of the hydraulic oil tank, and the hydraulic oil tank is integrally positioned at the upper side of the upper frame and the front side of the counterweight. The existing excavator side door frame has the following functions besides the basic function of providing mounting support for the excavator side door: 1. protection is provided for a power system and a heat dissipation system of the excavator, and a sealing channel and a heat dissipation channel are provided at the same time; 2. providing installation support and an air inlet channel for the air filter; 3. an escape passage is provided for a driver close to the rear side platform of the cab; 4. providing a fixed support for the hood.

The prior art scheme can meet the arrangement requirement of a radiating system of the national three-stage emission standard, but with the continuous improvement of the national emission standard of engineering machinery and the performance requirement of the market on an excavator, a power system and the radiating system are continuously upgraded, so that the arrangement space of the power system and the radiating system on a side door frame is higher and higher, particularly the national four-emission standard requirement to be enforced by the country greatly increases the requirement of the power system and the radiating system on the arrangement space, and the existing side door frame cannot meet the requirement; meanwhile, if the arrangement requirements of a power and heat dissipation system are met by simply increasing the height of the side door frame, the rear view of a driver and the escape requirements of the rear side of a cab cannot be met; the same effect can be achieved by increasing the height of the engine cover without changing the height of the side door frame, but the engine cover is redesigned by increasing the height of the engine cover, and the design and development cost is increased because the engine cover is a whole mould.

The invention content is as follows:

the to-be-solved technical problem of the utility model is to overcome prior art's not enough, provide an excavator side door step frame construction, its low in manufacturing cost, and can satisfy four emission standard's in the state power, cooling system's the demand of arranging, also can satisfy air intake system, driver back field of vision and driver's cabin escape route's standard and demand simultaneously.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides an excavator side door stepped frame structure, includes left front frame, left back frame and right frame, one side of left front frame is connected with one side of left back frame through left underbeam and left upper beam, and the opposite side of left front frame is connected with the one end of right frame through preceding baffle, the other end of right frame is still connected with left back frame through the back baffle, be equipped with a stair structure before a left side on the frame.

Preferably, an after-treatment system assembling bracket is arranged on the right frame.

Preferably, all be equipped with the side door mount pad on left side back frame and the right frame.

Preferably, the right frame is a U-shaped frame structure.

Preferably, a filter mounting hole is formed in the left front frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by designing the step structure, the height design sizes of the two sides of the step can be flexibly adjusted, the arrangement requirement of a heat dissipation system is met, the left front frame is prevented from shielding glass on the rear side of the cab, the rear view of a driver is not influenced, and the requirement of an escape passage of the cab can be effectively met;

2. because the height of the side door frame can meet the requirements of a heat dissipation system and space arrangement, the engine cover can realize the universality of three stages and four stages in China, and the production design and development cost of products are directly reduced;

3. compared with the integrally heightened side door frame, the step structure reduces the usage amount of production materials of the side door frame, thereby reducing the manufacturing cost of products;

4. the right frame is provided with an after-treatment system assembling bracket, and the after-treatment system is connected to the after-treatment system assembling bracket through bolts, so that the requirement of the state four stage is met;

therefore, the utility model has low manufacturing cost, can meet the arrangement requirements of power and heat dissipation systems of the national emission standards, and can also meet the standards and requirements of an air inlet system, a rear view of a driver and a cab escape way;

description of the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a part of the structure of the utility model in the installation and use state.

In the figure: 1. a side door; 2. a heat dissipation system; 3. an air filter mounting hole; 4. air filtering; 5. a cab; 6. an upper frame; 8. an engine cover; 9. a left front frame; 10. a left lower beam; 11. a left upper beam; 12. a left rear frame; 13. a rear bulkhead; 14. a right frame; 15. a front bulkhead; 16. a step structure; 17. a side door mount; 18. the aftertreatment system mounts a support.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

as shown in fig. 1, an excavator side door stepped frame structure, including left front frame 9, left back frame 12 and right frame 14, one side of left front frame 9 is connected with one side of left back frame 12 through left underbeam 10 and left upper beam 11, and the opposite side of left front frame 9 is connected with the one end of right frame 14 through preceding baffle 15 and bolt, the other end of right frame 14 still is connected with left back frame 12 through back baffle 13, be equipped with a stair structure 16 on the left front frame 9, stair structure 16 on the left front frame 9 passes through the bolt and installs on last frame 6, wholly is the rear side of driver's cabin 5.

The whole height of frame 9, left back frame 12 and right frame 14 increases before a left side to satisfy four power in the country, cooling system 2's spatial arrangement demand, simultaneously because the utility model discloses wholly increase and make engine bonnet 8 need not additionally increase, just can satisfy demand power and cooling system 2, accomplish the commonality of engine bonnet 8 and the three stages in the country, directly reduced the manufacturing cost of engine bonnet 8 design and development.

The step structure 16 on the left front frame 9 is close to one side of the cab 5, the height of the front side of the left front frame 9 is reduced by arranging a step, and the height is reduced to be lower than the height of the glass at the rear side of the cab, so that a remarkable step structure 16 is formed between the counterweight side and the rear side of the cab 5, and enough height space is reserved on the upper side surface of the step, so that the arrangement requirement of the heat dissipation system 2 can be met; the lower side surface of the step is lower than the rear glass of the cab 5, so that a driver can obtain a better rear view and the operation is convenient; meanwhile, the height of the lower side surface of the step is reduced, and a platform is formed, so that a driver has a wider escape space and an escape passage in an emergency (the glass passage at the rear side of the cab 5 is an emergency escape passage for the driver).

Example 2:

in the step type frame structure of the side door of the excavator, a right frame 14 is provided with an after-treatment system assembling bracket 18; the aftertreatment system mounting bracket 18 includes two brackets arranged in parallel, the aftertreatment system is bolted to the aftertreatment system mounting bracket 18, and the brackets are L-shaped structures.

The left rear frame 12 and the right rear frame 14 are both provided with side door mounting seats 17, and as shown in fig. 2, the side door 1 of the excavator can be mounted.

The right frame 14 is of a U-shaped frame structure; a mounting hole is reserved on the upper side of the frame formed by the left front frame 9 and the left rear frame 12, and as shown in fig. 2, the mounting of the engine hood 8 can be realized; and a closed inner space is formed in the middle of the upper side of the frame formed by the left rear frame 12 and the right frame 14 and is used for arranging parts such as a power system, a heat dissipation system 2 and the like.

The upper side surface of the step of the left front frame 9 is provided with an air filter mounting hole 3, so that the air filter 4 and an air inlet system can be mounted. The other portions are the same as in example 1.

Claims

1. The utility model provides an excavator side door step frame construction which characterized in that: including frame (9), left back frame (12) and right frame (14) before a left side, one side of frame (9) is connected with one side of left back frame (12) through left underbeam (10) and left upper beam (11) before a left side, and the opposite side of frame (9) is connected with the one end of right frame (14) through preceding baffle (15) before a left side, and the other end of right frame (14) still is connected with left back frame (12) through back baffle (13), be equipped with a stair structure (16) before a left side on frame (9).

2. The excavator side door step frame structure of claim 1, wherein: and an after-treatment system assembling bracket (18) is arranged on the right frame (14).

3. The excavator side door step frame structure of claim 1 or 2, wherein: and the left rear frame (12) and the right rear frame (14) are respectively provided with a side door mounting seat (17).

4. The excavator side door step frame structure of claim 1 or 2, wherein: the right frame (14) is of a U-shaped frame structure.

5. The excavator side door step frame structure of claim 1 or 2, wherein: and a filter mounting hole (3) is formed in the left front frame (9).