Whole machine structure of wheel type hydraulic excavator

Abstract

The utility model relates to a complete machine structure of a wheel type hydraulic excavator, which comprises a complete machine platform, two main beams with S-shaped bending structures are arranged on the complete machine platform, and upper cover plates are mounted on the main beams, so that the complete machine platform has better stress capacity and hardness; meanwhile, the whole machine platform is divided into the left platform, the middle platform and the right platform through the two main beams of the S-shaped bent structures, the framework with the large size in the installation framework is installed at the wide positions of the left platform and the right platform, the other frameworks are reasonably arranged and installed, and therefore the space of the whole machine platform is fully utilized, and the whole machine platform can be conveniently installed. And the width of the whole machine platform is shortened, so that the whole machine platforms of different types of wheel type hydraulic excavators can be mutually used, and the generalization of the whole machine platform is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator parts processing, in particular to a complete structure of a wheeled hydraulic excavator. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] With the increase in the number of working conditions such as urban construction and municipal maintenance, the market share of wheeled hydraulic excavators has also increased, and different models of wheeled hydraulic excavators have been derived. As the number of wheeled hydraulic excavator models continues to increase, the performance requirements for the complete machine platform installed in the wheeled hydraulic excavator have also increased.

[0004] On existing complete machine platforms, two parallel straight main beams are usually set in the center of the complete machine platform to increase the force and hardness of the complete machine platform. At the same time, other structures are installed in the middle or on both sides of the two straight main beams to ensure the normal operation of the wheeled hydraulic excavator.

[0005] However, due to the existence of the straight main beam, when installing other structures on the whole machine platform, the distance between the two straight main beams and the distance between the main beam and the edge of the whole machine platform are determined by the structure with the largest volume among the installation structures. This results in the space of the whole machine platform not being fully utilized and the width of the whole machine platform being longer, making it impossible for the whole machine platforms of different models of wheeled hydraulic excavators to be used with each other, and the whole machine platform cannot be universalized. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide a complete structure of a wheeled hydraulic excavator. By arranging two main beams with S-shaped bending structures and upper cover plates installed on the complete platform, it is ensured that the complete platform still has good force-bearing capacity; at the same time, based on the two main beams with S-shaped bending structures, the width of the complete platform can be shortened, thereby realizing the universalization of the complete platform among different models of wheeled hydraulic excavators.

[0007] The purpose of the utility model is to provide a complete structure of a wheeled hydraulic excavator, including a complete machine platform, on which two S-shaped bent main beams are arranged along the length direction of the complete machine platform, dividing the complete machine platform into a left platform, a middle platform and a right platform; an engine mounting bracket is arranged on the same side of the two main beams at the rear position of the middle platform, and a radiator mounting plate and a support plate are respectively arranged on the left platform and the right platform on the left and right sides of the engine mounting bracket; a main valve mounting bracket is arranged on the middle platform on the front side of the engine mounting bracket, and an air filter mounting plate and a hydraulic oil tank mounting plate are respectively arranged on the left platform and the right platform on the left and right sides of the main valve mounting bracket; a rotary motor mounting port is arranged on the middle platform on the front side of the main valve mounting bracket, and a cab bracket and a fuel tank support plate are respectively arranged on the left platform and the right platform on the left and right sides of the rotary motor mounting port, and a battery mounting plate is arranged on the right platform in front of the fuel tank support plate; an upper cover plate is installed on the two S-shaped bent main beams.

[0008] As a further technical solution, the two S-shaped bent main beams are parallel to each other and have the same structure; the main beams include a front main beam and a rear main beam, and the rear main beam starts to bend from the main valve mounting frame toward the left platform, and then bends back again to an angle consistent with the length direction of the entire machine platform.

[0009] As a further technical solution, the radiator mounting plate is arranged on one side of the left platform close to the edge of the whole machine platform, and the whole machine radiator, condenser and brake system accumulator are arranged on the radiator mounting plate.

[0010] As a further technical solution, the main valve mounting bracket and the rotary motor mounting port correspond to each other in front and rear positions on the middle platform, and a rotary joint mounting port is provided on the middle platform in front of the rotary motor mounting port.

[0011] As a further technical solution, the air filter mounting plate is arranged on the front side of the radiator mounting plate on the left platform, and the air filter mounting plate is provided with an air filter, a four-way solenoid valve group, a shuttle valve group, a filling valve and a partition.

[0012] As a further technical solution, the cab bracket is arranged on the front side of the air filter mounting plate on the left platform; cab mounting holes are provided on the four corners of the cab bracket for installing the cab; and an evaporator is also provided on the cab bracket.

[0013] As a further technical solution, the hydraulic oil tank mounting plate is arranged on the front side of the support plate on the right platform, and a hydraulic oil tank is arranged on the hydraulic oil tank mounting plate.

[0014] As a further technical solution, the fuel tank support plate is arranged at the edge of the hydraulic oil tank mounting plate close to the front side, for supporting the fuel tank.

[0015] As a further technical solution, the battery mounting plate is arranged in front of the fuel tank support plate on the right platform, the battery and the refueling pump are arranged on the battery mounting plate, and the refueling pump external pipeline is arranged on the upper surface of the battery.

[0016] As a further technical solution, a left turn signal is provided on the outer side of the left platform at the position of the cab bracket; a right turn signal and a main power switch are provided on the outer side of the right platform at the position of the battery mounting plate.

[0017] Beneficial effects of one or more of the above technical solutions:

[0018] The utility model provides two main beams with S-shaped bending structures and upper covers installed on the main beams on the whole machine platform, so that the whole machine platform still has better force-bearing capacity and hardness; at the same time, the two main beams with S-shaped bending structures are used to divide the whole machine platform into a left platform, a middle platform and a right platform, and the larger structure of the installation structure is installed at a wider position on the left and right platforms, and the other structures are reasonably arranged and installed, thereby making full use of the space of the whole machine platform and shortening the width of the whole machine platform, so that the whole machine platforms of different models of wheeled hydraulic excavators can be used interchangeably, thereby realizing the universalization of the whole machine platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification that constitute part of this application are used to provide further understanding of this application. In order to facilitate understanding, the proportions between the structures of each part have been adjusted. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0020] Figure 1 This is a top view of the entire machine platform in the entire machine structure of a wheeled hydraulic excavator of the present invention.

[0021] Figure 2 This is an oblique structural diagram of the entire machine platform in the entire machine structure of a wheeled hydraulic excavator of the present utility model.

[0022] Figure 3 This is a top view of the entire structure of a wheeled hydraulic excavator of the utility model after the structure is installed.

[0023] Figure 4 This is a left side view of the entire structure of a wheeled hydraulic excavator of the present invention after the structure is installed.

[0024] Figure 5 This is a right side view of the entire structure of a wheeled hydraulic excavator according to the present invention after the structure is installed.

[0025] Among them, 1. whole machine platform, 2. main beam, 3. left platform, 4. middle platform, 5. right platform, 6. engine mounting bracket, 7. radiator mounting plate, 8. support plate, 9. main valve mounting bracket, 10. air filter mounting plate, 11. hydraulic oil tank mounting plate, 12. rotary motor mounting port, 13. cab bracket, 14. fuel tank support plate, 15. battery mounting plate, 16. front main beam, 17. rear main beam, 18. whole machine radiator, 19. condenser, 20. brake system accumulator, 21. rotary joint mounting port, 22. air filter Cleaner, 23. Four-way solenoid valve group, 24. Shuttle valve group, 25. Filling valve, 26. Partition, 27. Cab mounting hole, 28. Evaporator, 29. Hydraulic oil tank, 30. Fuel tank, 31. Battery, 32. Fueling pump, 33. Fueling pump external pipeline, 34. Left turn signal, 35. Right turn signal, 36. Main power switch, 37. Seven-way solenoid valve group, 38. Cab mounting hole, 39. Rotary motor, 40. Engine, 41. Rotary joint, 42. Main valve, 43. Main pump, 44. Engine after-treatment, 45. Upper cover. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the present utility model.

[0027] Example 1

[0028] Reference Figure 1-5 A wheeled hydraulic excavator structure includes a platform 1, on which two S-shaped bent main beams 2 are arranged along the length of the platform 1, dividing the platform 1 into a left platform 3, a middle platform 4, and a right platform 5. The two S-shaped bent main beams 2 have identical structures, respectively comprising a front main beam 16 and a rear main beam 17, which are connected by welding. The main beams 2 can also be configured as an integrated structure. The main beams 2 are bent such that the rear main beam 17 starts bending from the main valve mounting frame 9 toward the left platform 3, and then undergoes a secondary bend back to an angle consistent with the length of the platform 1. That is, after the secondary bend, the angle of the rear main beam 17 is parallel to the long side of the platform 1. The two main beams 2 are also parallel to each other.

[0029] Considering that setting the main beam 2 as a bending mechanism will weaken the strength of the entire platform 1, an upper cover plate 45 is provided on the main beam 2, and the upper cover plate 45 is thickened. At the same time, local reinforcement is performed through stress analysis. Finally, the irregular shape of the upper cover plate 45 avoids stress concentration, thereby improving the force-bearing capacity and hardness of the entire platform 1.

[0030] An engine mounting bracket 6 is located on the same side of the two main beams 2 at the rear of the middle platform 4 on the complete machine platform 1. This bracket is used to mount an engine 40. In this embodiment, four engine mounting brackets 6 are installed, two on each main beam 2. Radiator mounting plates 7 and support plates 8 are located on the left and right platforms 3 and 5, respectively, to the left and right of the engine mounting brackets 6. The radiator mounting plate 7 is located on the side of the left platform 3 near the edge of the complete machine platform 1 and houses the complete machine radiator 18, condenser 19, and brake system accumulator 20. The support plates 8 support the main pump 43 and engine aftertreatment unit 44.

[0031] A main valve mounting bracket 9 is provided on the middle platform 4 in front of the engine mounting bracket 6 (specifically the two engine mounting brackets 6 located in the front), for mounting the main valve 42. An air filter mounting plate 10 and a hydraulic oil tank mounting plate 11 are provided on the left platform 3 and right platform 5, respectively, to the left and right of the main valve mounting bracket 9. The air filter mounting plate 10 is provided in front of the radiator mounting plate 7 on the left platform 3. An air filter 22, a four-way solenoid valve assembly 23, a shuttle valve assembly 24, a charging valve 25, and a partition 26 are also provided on the air filter mounting plate 10. The partition 26 is used to shield the pipelines. Meanwhile, a hydraulic oil tank mounting plate 11 is provided in front of the support plate 8 on the right platform 5. A hydraulic oil tank 29 is provided on the hydraulic oil tank mounting plate 11.

[0032] A slew motor mounting port 12 is provided on the middle platform 4 in front of the main valve mounting bracket 9 for mounting the slew motor 39. A cab bracket 13 and a fuel tank support plate 14 are respectively provided on the left platform 3 and right platform 5 to the left and right of the slew motor mounting port 12. The cab bracket 13 is located in front of the air filter mounting plate 10 on the left platform 3. Cab mounting holes 38 are provided at the four corners of the cab bracket 13 for mounting the cab. The evaporator 28 is also mounted on the cab bracket 13. The fuel tank support plate 14 is located near the front edge of the hydraulic tank mounting plate 11 and supports the fuel tank 30.

[0033] The main valve mounting bracket 9 and the rotary motor mounting port 12 are aligned on the central platform 4, with their centers on the same horizontal line. A rotary joint mounting port 21 is provided on the central platform 4, in front of the rotary motor mounting port 12, for mounting a rotary joint 41. A battery mounting plate 15 is provided on the right platform 5, in front of the fuel tank support plate 14. This plate is located on the right platform 5, in front of the fuel tank support plate 14. A battery 31 and a refueling pump 32 are mounted on this plate. A refueling pump external piping 33 is installed on the upper surface of the battery 31.

[0034] At the same time, a left turn signal 34 is provided on the outer side of the left platform 3 at the position of the cab bracket 13; a right turn signal 35 and a main power switch 36 are provided on the outer side of the right platform 5 at the position of the battery mounting plate 15.

[0035] Based on the above description and the layout of the complete machine platform 1, the complete machine platform 1 is first divided into a left platform 3, a middle platform 4, and a right platform 5 by the two main beams 2. Regarding the left platform 3, the rearmost area of the left platform 3 is the smallest. In this embodiment, the radiator mounting plate 7, which is relatively small in size and occupies a relatively small area, is installed there. At the same time, the air filter mounting plate 10 and the cab bracket 13, which are relatively large in size and occupy a relatively large area, are installed in the larger area of the left platform 3. This controls the width of the entire left platform 3. This arrangement also ensures that the connection lines between various devices such as the complete machine radiator 18 and the air filter 22 are kept to a minimum, thus ensuring a reasonable layout.

[0036] Similarly, with respect to the right platform 5, the support plate 8 with a larger volume and area is installed at the largest area on the right platform 5, providing sufficient space for the installation of the main pump 43 and the engine after-processing 44. At the same time, other structures with smaller volume and area are installed at other positions of the right platform 5, which also controls the disorder of the right platform 5 and ensures the rationality of the structural layout.

[0037] Furthermore, compared to existing overall machine layouts, the main power switch 36 and battery 31 have been removed from the left platform 3. Instead, a partition 26 has been added to shield wiring and piping. Furthermore, a brake system accumulator 20, a quadruple solenoid valve assembly 23, a shuttle valve assembly 24, and a charging valve 25 have been added, thereby enhancing the performance of the overall machine platform 1. By repurposing the battery 31 as the location previously occupied by the toolbox on the right platform 5 and adding a main power switch 36, the wiring layout between the various structures has become more compact and rational, and the width of the overall machine platform 1 has been shortened.

[0038] Through the above arrangement, the width of the whole machine platform 1 is shortened, so that the whole machine platform 1 in the larger wheel hydraulic excavator can also be suitable for the smaller wheel hydraulic excavator, and the width of the whole machine layout can reach the standard of 2540mm, thereby realizing the universality of the whole machine platform 1.

[0039] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A wheeled hydraulic excavator complete structure, characterized in that: It includes a whole machine platform, on which two S-shaped bent main beams are arranged along the length direction of the whole machine platform, dividing the whole machine platform into a left platform, a middle platform and a right platform; an engine mounting bracket is arranged on the same side of the two main beams at the rear position of the middle platform, and a radiator mounting plate and a support plate are respectively arranged on the left platform and the right platform on the left and right sides of the engine mounting bracket; a main valve mounting bracket is arranged on the middle platform on the front side of the engine mounting bracket, and an air filter mounting plate and a hydraulic oil tank mounting plate are respectively arranged on the left platform and the right platform on the left and right sides of the main valve mounting bracket; a rotary motor mounting port is arranged on the middle platform on the front side of the main valve mounting bracket, and a cab bracket and a fuel tank support plate are respectively arranged on the left platform and the right platform on the left and right sides of the rotary motor mounting port, and a battery mounting plate is arranged on the right platform in front of the fuel tank support plate; an upper cover plate is installed on the two S-shaped bent main beams.

2. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The two S-shaped bent main beams are parallel to each other and have the same structure; the main beams include a front main beam and a rear main beam, and the rear main beam starts to bend from the main valve mounting frame toward the left platform, and then bends back again to an angle consistent with the length direction of the entire machine platform.

3. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The radiator mounting plate is arranged on one side of the left platform close to the edge of the whole machine platform, and the whole machine radiator, condenser and brake system accumulator are arranged on the radiator mounting plate.

4. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The main valve mounting bracket and the rotary motor mounting port correspond to each other in front and back positions on the middle platform, and a rotary joint mounting port is provided on the middle platform in front of the rotary motor mounting port.

5. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The air filter mounting plate is arranged on the front side of the radiator mounting plate on the left platform. An air filter, a four-way solenoid valve group, a shuttle valve group, a filling valve and a partition are arranged on the air filter mounting plate.

6. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The cab bracket is arranged on the front side of the air filter mounting plate on the left platform; cab mounting holes are arranged on the four corners of the cab bracket for mounting the cab; and an evaporator is also arranged on the cab bracket.

7. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The hydraulic oil tank mounting plate is arranged on the front side of the support plate on the right platform, and a hydraulic oil tank is arranged on the hydraulic oil tank mounting plate.

8. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The fuel tank support plate is arranged at an edge of the hydraulic oil tank mounting plate close to the front side and is used for supporting the fuel tank.

9. The wheeled hydraulic excavator structure according to claim 1, characterized in that: The battery mounting plate is arranged on the front side of the fuel tank support plate on the right platform. The battery and the refueling pump are arranged on the battery mounting plate, and the refueling pump external pipeline is arranged on the upper surface of the battery.

10. The wheeled hydraulic excavator structure according to claim 1, characterized in that: A left turn signal is provided on the outer side of the left platform at the position of the cab bracket; a right turn signal and a main power switch are provided on the outer side of the right platform at the position of the battery mounting plate.

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