High-pressure pipeline arrangement of main pump of new energy excavator

Abstract

The invention relates to the technical field of new energy excavators, and discloses a new energy excavator main pump high-pressure pipeline arrangement, which comprises a first high-pressure pipeline, a second high-pressure pipeline and a transition block, the first high-pressure pipeline and the second high-pressure pipeline are vertically arranged and are communicated through the transition block, and the rear end of the first high-pressure pipeline is connected with the inlet end of the transition block; the front end of the main pump is connected with the output end of the main pump which is arranged at the front end of the right side of the revolving platform; one end of the second high-pressure pipeline is connected with the main valve, and the other end of the second high-pressure pipeline is connected with an outlet end of a transition block; the high-pressure pipeline is arranged into a two-section type of the first high-pressure pipeline and the second high-pressure pipeline, steering of the high-pressure pipeline is achieved through the transition block and the supporting base, and the problems that in the structural arrangement of the new energy excavator, the high-pressure pipeline at the output end of the main pump is limited by the bending radius, and arrangement is inconvenient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy excavators, and in particular to a high-pressure pipeline arrangement of a main pump of a new energy excavator. Background Art

[0002] With the development of new energy, new energy pure electric excavators are also gradually being used. The structure of new energy excavators is different from that of existing excavators. It is necessary to cancel the engine, install a power battery pack and an electric motor mechanism, and install the power battery pack and the main pump or the motor on the rotary platform at the original engine position. The main pump or the motor will occupy the installation space of the power battery pack and affect the endurance. Therefore, the existing new energy excavators will arrange the main pump and the motor on the front side of the rotary platform, but because the main valve is generally installed in the middle position in front of the power battery pack, the high-pressure pipeline connected to the output end of the main pump needs to be connected to the inlet end of the main valve, and the inlet end of the main valve is generally at the rear side. This requires the high-pressure pipeline at the output end of the main pump to be connected to the main valve after a 90° turn, but due to the bending radius limit of the high-pressure pipeline, the high-pressure pipeline cannot be directly connected to the main valve after a 90° turn. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a high-pressure pipeline arrangement for the main pump of a new energy excavator. The high-pressure pipeline is arranged in two sections, namely a first high-pressure pipeline and a second high-pressure pipeline, and the high-pressure pipeline is turned by a transition block and a support seat. This solves the problem that in the structural layout of the new energy excavator, the high-pressure pipeline at the output end of the main pump is limited by the bending radius and is inconvenient to arrange.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A high-pressure pipeline arrangement of a main pump of a new energy excavator includes a first high-pressure pipeline, a second high-pressure pipeline and a transition block. The first high-pressure pipeline and the second high-pressure pipeline are arranged vertically and connected through the transition block. The rear end of the first high-pressure pipeline is connected to an inlet end of the transition block, and the front end is connected to an output end of the main pump. The main pump is arranged at the front end position on the right side of a rotating platform; one end of the second high-pressure pipeline is connected to a main valve, and the other end is connected to an outlet end of the transition block. The transition block is fixed on the rotating platform.

[0006] As a further implementation method, a hydraulic oil tank and a hydraulic oil tank radiator are installed in sequence on the right side of the main valve, the length direction of the hydraulic oil tank is in the same direction as the length direction of the rotating platform, and the first high-pressure pipeline extends backward along the space between the hydraulic oil tank and the hydraulic oil tank radiator.

[0007] As a further implementation method, the rotary platform is correspondingly mounted with an oil tank mounting plate and a radiator mounting plate, and the rear ends of the oil tank mounting plate and the radiator mounting plate are connected via a support seat.

[0008] As a further implementation method, the support seat includes a support plate, both ends of which are respectively connected to the oil tank mounting plate and the radiator mounting plate, a support column is provided on the top of the support plate, and a transition block is provided on one side of the support column.

[0009] As a further implementation, the transition block is provided with interfaces for connecting the first high-pressure pipeline and the second high-pressure pipeline, and the interfaces are connected through a flow channel.

[0010] As a further implementation method, a mounting hole is provided on the transition block, and the transition block is installed on the support column through the mounting hole and the transition block mounting hole on the top of the support column.

[0011] As a further implementation method, the cross-section of the support column is U-shaped, and the transition block is installed on the outer side of the support column.

[0012] As a further implementation method, the bottom of the support column is fixedly connected to the support plate, and an integrated rib plate is provided at the bottom of the support column, and the rib plate is fixedly connected to the support plate to increase the connection strength between the support column and the support plate.

[0013] As a further implementation, an arc-shaped adapter is provided at the interface, the inlet direction and the outlet direction of the adapter are perpendicular, and the adapter is used to connect the interface and the high-pressure pipeline.

[0014] As a further implementation, the rotary platform on the left side of the main valve is set as a tool box installation area, and the rotary platform in front of the tool box installation area is set as a cab installation area.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention solves the problem that the main pump high-pressure pipeline in the new energy excavator is limited by the bending radius and is inconvenient to arrange by setting the high-pressure pipeline as a two-section first high-pressure pipeline and a second high-pressure pipeline, and realizes the steering of the high-pressure pipeline through a transition block and a support seat.

[0017] 2. By placing the hydraulic oil tank longitudinally, the hydraulic oil tank and the hydraulic oil tank radiator are arranged on the rotating platform on the right side of the main valve. On the one hand, the tool box occupied by the main pump and motor located in the right front of the rotating platform can be set on the left side of the main valve. On the other hand, the length of the high-pressure pipeline can be shortened to reduce costs.

[0018] 3. A flow channel is provided on the transition block of the present invention to achieve the connection between the first high-pressure pipeline and the second high-pressure pipeline, and the first high-pressure pipeline and the second high-pressure pipeline are arranged vertically through the arc-shaped adapter on the rear side of the transition block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a structural schematic diagram of the high-pressure pipeline arrangement of the main pump of the new energy excavator in an embodiment of the present invention;

[0021] Figure 2 is a structural schematic diagram of a rotary platform of a new energy excavator in an embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the side view structure of the transition block and the transition block bracket in an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the main structure of the transition block and the transition block bracket in an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of a top view of the structure of a transition block and a transition block bracket in an embodiment of the present invention;

[0025] Figure 6 is a front structural schematic diagram of a transition block in an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the side structure of the transition block in an embodiment of the present invention.

[0027] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0028] Among them: 1. Rotating platform, 2. Tool box installation area, 3. Cab installation area, 4. Power battery, 5. Main valve, 6. Hydraulic oil tank, 7. Radiator mounting plate, 8. Main pump, 9. Motor installation area, 11. Support seat, 12. Transition block; 61. Oil tank mounting plate, 71. Support seat fixing point; 111. Support plate, 112. Support column, 113. Transition block positioning hole, 114. Rib plate; 121. Adapter, 122. Mounting hole, 123. Flow channel, 124. Interface. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0030] Embodiment 1

[0031] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 7As shown, a high-pressure pipeline arrangement of a main pump of a new energy excavator includes a first high-pressure pipeline, a second high-pressure pipeline and a transition block. The first high-pressure pipeline and the second high-pressure pipeline are arranged vertically and connected through the transition block. The rear end of the first high-pressure pipeline is connected to the inlet end of the transition block, and the front end is connected to the output end of the main pump. The main pump is arranged at the front end position on the right side of the rotary platform; one end of the second high-pressure pipeline is connected to the main valve, and the other end is connected to the outlet end of the transition block. The transition block is fixed on the rotary platform.

[0032] like Figure 1 and Figure 2 As shown, in the structural layout of the new energy excavator, in order to ensure the capacity of the power battery 4, the power battery 4 is installed in the entire space on the rear side of the rotating platform 1, and the main pump and the motor are placed in front and located at the right front position of the rotating platform 1. The front right side of the rotating platform 1 is used as the motor installation area 9 for installing the motor, and the main pump 8 is connected to the rear side of the motor.

[0033] The main valve 5 is installed in the middle position in front of the power battery 4. Since the main pump and the motor are placed in front, the original installation space of the right front toolbox is occupied. In this embodiment, the hydraulic oil tank 6 and the hydraulic oil tank radiator are installed in sequence on the rotating platform 1 on the right side of the main valve 5. In order to ensure that the hydraulic oil tank and the hydraulic oil tank radiator are installed on the right side of the main valve 5 without changing the size of the rotating platform, the hydraulic oil tank 6 needs to be placed vertically, that is, the length direction of the hydraulic oil tank 6 is in the same direction as the length direction of the rotating platform 1, reducing the lateral span of the hydraulic oil tank, so that the rotating platform on the left side of the main valve 5 is vacant and can be used as a toolbox installation area 2 to install the toolbox. The rotating platform of the toolbox installation area 2 is set as a cab installation area 3.

[0034] like Figure 1 and Figure 2 As shown, a tank mounting plate 61 and a radiator mounting plate 7 for structural installation are provided on the rotary platform 1 at the corresponding positions of the hydraulic oil tank 6 and the hydraulic oil tank radiator, respectively used to install the hydraulic oil tank 6 and the hydraulic oil tank radiator. The main valve 5, the hydraulic oil tank 6 and the hydraulic oil tank radiator are arranged horizontally on the rotary platform 1.

[0035] The rear ends of the fuel tank mounting plate and the radiator mounting plate are connected via a support base 11. Figure 2 As shown, a support base fixing point 71 is provided on one side close to each other at the rear ends of the oil tank mounting plate 61 and the radiator mounting plate 7 for mounting the support base.

[0036] The support seat 11 includes a support plate 111 , both ends of which are connected to the oil tank mounting plate 61 and the radiator mounting plate 7 respectively. A support column 112 is provided on the top of the support plate 111 , and a transition block 12 is provided on one side of the support column 112 .

[0037] like Figure 3-Figure 5As shown, the support plate 111 is a rectangular plate structure with fixing holes at both ends thereof, and the support plate 111 is fixed by the cooperation of the fixing parts with the support seat fixing points 71.

[0038] The support column 112 is vertically welded to the support plate 111. Figure 3 As shown, an integrated rib plate 114 is provided at the bottom of the support column 112, and the rib plate 114 is fixedly welded to the support plate 111, so as to increase the connection strength between the support column and the support plate.

[0039] like Figure 4 and Figure 5 As shown, the support column 112 has a U-shaped cross section, including two side plates and a connecting plate between the side plates, and the transition block 12 is installed on the outer side surface of the connecting plate.

[0040] Specifically, a transition block positioning hole 113 is provided on the connecting plate, and a mounting hole 122 is provided on the transition block. The mounting hole 122 and the transition block positioning hole 113 are connected by a fixing piece, so that the transition block 12 is installed on the supporting column 112 .

[0041] The transition block 12 is provided with a flow channel 123 corresponding to the high-pressure pipeline. The flow channel forms interfaces at both ends of the transition block 12 , and the interfaces are used to install the adapter 121 .

[0042] The flow channel 123 of this embodiment is arranged along the length direction of the rotary platform 1, and the transition block 12 is correspondingly provided with an interface connecting the first high-pressure pipeline and the second high-pressure pipeline. The interface can realize the connection between the transition block and the high-pressure pipeline through the adapter 121.

[0043] like Figure 1 As shown, since the flow channel 123 is arranged along the length direction of the revolving platform 1, after the first high-pressure pipeline starts from the main pump 8, the first high-pressure pipeline extends backward along the space between the hydraulic oil tank 6 and the hydraulic oil tank radiator, and is connected to the adapter 121 on the front side of the transition block 12. The inlet direction and the outlet direction of the front adapter 121 are in the same direction, and no turning is required.

[0044] An adapter 121 is also provided on the rear side of the transition block 12. The adapter 121 on the rear side is an arc-shaped adapter, and the inlet direction and outlet direction of the adapter 121 on the rear side are perpendicular. It is used to connect the rear side interface and the second high-pressure pipeline to realize the vertical arrangement of the first high-pressure pipeline and the second high-pressure pipeline.

[0045] By setting the high-pressure pipeline as a two-section structure consisting of a first high-pressure pipeline and a second high-pressure pipeline, and realizing the steering of the high-pressure pipeline through a transition block and a support seat, the problem of the main pump high-pressure pipeline being limited by the bending radius and inconvenient layout in the new energy excavator is solved.

[0046] By placing the hydraulic oil tank longitudinally, the hydraulic oil tank and the hydraulic oil tank radiator can be arranged on the rotating platform on the right side of the main valve. On the one hand, the tool box occupied by the main pump 8 and the motor located in the right front of the rotating platform can be set on the left side of the main valve 5. On the other hand, the length of the high-pressure pipeline can be shortened and the cost can be reduced.

[0047] In other examples, the structure of the adapter 121 at the rear side of the transition block 12 may be the same as that of the adapter 121 at the front side, and the transition block may be thickened and the internal flow channel 123 may be set so that the inlet section and the outlet section are perpendicular.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-pressure pipeline arrangement of the main pump of a new energy excavator, characterized in that: It includes a first high-pressure pipeline, a second high-pressure pipeline and a transition block. The first high-pressure pipeline and the second high-pressure pipeline are arranged vertically and connected through the transition block. The rear end of the first high-pressure pipeline is connected to the inlet end of the transition block, and the front end is connected to the output end of the main pump. The main pump is arranged at the front end position on the right side of the rotating platform; one end of the second high-pressure pipeline is connected to the main valve, and the other end is connected to the outlet end of the transition block. The transition block is fixed on the rotating platform.

2. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 1 is characterized in that: A hydraulic oil tank and a hydraulic oil tank radiator are installed in sequence on the right side of the main valve. The length direction of the hydraulic oil tank is in the same direction as the length direction of the rotary platform. The first high-pressure pipeline extends backward along the space between the hydraulic oil tank and the hydraulic oil tank radiator.

3. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 2 is characterized in that: The rotary platform is correspondingly provided with an oil tank mounting plate and a radiator mounting plate, and the rear ends of the oil tank mounting plate and the radiator mounting plate are connected via a support seat.

4. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 3 is characterized in that: The support seat comprises a support plate, two ends of which are respectively connected to the oil tank mounting plate and the radiator mounting plate, a support column is arranged on the top of the support plate, and a transition block is arranged on one side of the support column.

5. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 1 is characterized in that: The transition block is correspondingly provided with an interface connected to the first high-pressure pipeline and the second high-pressure pipeline, and the interfaces are communicated through a flow channel.

6. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 4 is characterized in that: The transition block is provided with a mounting hole, and the transition block is mounted on the support column through the mounting hole and the transition block mounting hole at the top of the support column.

7. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 6 is characterized in that: The cross section of the support column is U-shaped, and the transition block is installed on the outer side of the support column.

8. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 7 is characterized in that: The bottom of the support column is fixedly connected to the support plate. An integrated rib plate is provided at the bottom of the support column. The rib plate is fixedly connected to the support plate to increase the connection strength between the support column and the support plate.

9. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 5 is characterized in that: An arc-shaped adapter is provided at the interface, the inlet direction and the outlet direction of the adapter are perpendicular, and the adapter is used to connect the interface and the high-pressure pipeline.

10. The high-pressure pipeline arrangement of the main pump of a new energy excavator according to claim 2 is characterized in that: The rotary platform on the left side of the main valve is set as a tool box installation area, and the rotary platform in front of the tool box installation area is set as a cab installation area.

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