CN201610563U - Excavator and hydraulic pump thereof - Google Patents
Excavator and hydraulic pump thereof Download PDFInfo
- Publication number
- CN201610563U CN201610563U CN2010200024982U CN201020002498U CN201610563U CN 201610563 U CN201610563 U CN 201610563U CN 2010200024982 U CN2010200024982 U CN 2010200024982U CN 201020002498 U CN201020002498 U CN 201020002498U CN 201610563 U CN201610563 U CN 201610563U
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- pump
- excavator
- main pump
- pioneer
- hydraulic
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Abstract
The utility model provides an excavator and a hydraulic pump thereof. The hydraulic pump comprises a main pump and a guide pump; the main pump is provided with a power input shaft; and the guide pump is arranged in a position in the axial direction of the power input shaft and positioned within the scope of the axial length of the main pump. The utility model can reduce the axial length of the complete machine of the hydraulic pump, effectively save the space of the complete machine and provide enough space for the arrangement of medium-and-large-sized excavators.
Description
Technical field
The utility model relates to engineering machinery, particularly relates to a kind of excavator and hydraulic pump thereof.
Background technology
Excavator is a kind of of engineering machinery, is widely used in engineering fields such as building, water conservancy, electric power, road, mine, harbour and national defence.Because operating mode needs, the body of excavator is bigger, excavator comprises crawler-mounted excavator, wheel excavator or the like, Fig. 1 is the shape assumption diagram of existing crawler-mounted excavator, as shown in the figure, the digging element of excavator includes scraper bowl, dipper and swing arm, drives by hydraulic jack 101,102 and 103 respectively, and the hydraulic oil of hydraulic jack is from the main pump in the hydraulic pump.
Hydraulic pump comprises main pump and pioneer pump.Fig. 2 a is the schematic diagram of the position relation of existing medium-sized excavator main pump and pioneer pump, as shown in the figure, main pump 210 is along the axial setting of power input shaft 211, the mechanical energy of motor is converted to the power of hydraulic pressure energy, hydraulic oil can be delivered to the hydraulic system of machinery, the hydraulic package that priming is all.Pioneer pump 220 is arranged on the position of axle head one side of main pump 210, and pioneer pump 220 starts prior to main pump when starting, and its effect in hydraulic pump is for control system provides pressure oil, makes main pump energy safe opening, and guarantees the operate as normal of whole hydraulic pump.
Fig. 2 b is the entity structure diagram of the position relation of existing medium-sized excavator main pump and pioneer pump; As shown in the figure, main pump 310 is along the axial setting of power input shaft 311, and pioneer pump 320 is arranged on the position of axle head one side of main pump 310.
As seen, existing medium-sized excavator, pioneer pump are positioned at the axial of main pump, and it is bigger to take the complete machine space, is unfavorable for the layout in complete machine space.
The utility model content
The purpose of the utility model embodiment provides a kind of excavator and hydraulic pump thereof, can reduce the axial length of hydraulic pump complete machine, has effectively saved the space of complete machine, for the design arrangement of medium-and-large-sized excavator provides necessary space.
To achieve these goals, the utility model provides a kind of excavator, comprise hydraulic pump, have main pump and pioneer pump in the described hydraulic pump, described main pump has power input shaft, described pioneer pump is arranged on the radial position of described power input shaft, and is positioned within the scope of axial length of described main pump.
Preferably, in the above-mentioned excavator, described pioneer pump is arranged on the top of described main pump.
Preferably, in the above-mentioned excavator, described pioneer pump and described main pump are positioned at same horizontal plane.
The utility model also provides a kind of hydraulic pump of excavator, have main pump and pioneer pump in the described hydraulic pump, described main pump has power input shaft, and described pioneer pump is arranged on the radial position of described power input shaft, and is positioned within the scope of axial length of described main pump.
Preferably, in the above-mentioned hydraulic pump, described pioneer pump is arranged on the top of described main pump.
Preferably, in the above-mentioned hydraulic pump, described pioneer pump and described main pump are positioned at same horizontal plane.
There is following technique effect at least in the utility model embodiment:
Pioneer pump is positioned at the radial direction of main pump, and does not exceed the axial length range of main pump, has therefore reduced the axial length of hydraulic pump complete machine, has effectively saved the space of complete machine, for necessary space has been saved in the design of medium-and-large-sized excavator.
Description of drawings
Fig. 1 is the shape assumption diagram of existing crawler-mounted excavator;
Fig. 2 a is the schematic diagram of the position relation of existing medium-sized excavator main pump and pioneer pump;
Fig. 2 b is the entity structure diagram of the position relation of existing medium-sized excavator main pump and pioneer pump;
The schematic diagram of excavator main pump that Fig. 3 a provides for the utility model and the position of pioneer pump relation;
The entity structure diagram of excavator main pump that Fig. 3 b provides for the utility model and the position of pioneer pump relation.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, specific embodiment is described in detail below in conjunction with accompanying drawing.
The schematic diagram of excavator main pump that Fig. 3 a provides for the utility model and the position of pioneer pump relation, as shown in the figure, excavator comprises hydraulic pump, have main pump 410 and pioneer pump 420 in the described hydraulic pump, described main pump 410 has power input shaft 411, described pioneer pump 420 is arranged on the radial position of described power input shaft 411, and is positioned within the scope of axial length of described main pump 410.
Therefore, pioneer pump can not increase hydraulic pump length in the axial direction, has saved the space, is beneficial to the design that combines of main pump and big-block engine, is applicable to the design arrangement of medium-and-large-sized excavator.
Described pioneer pump 420 can be arranged on the top of described main pump.Also can be positioned at same horizontal plane with described main pump.As long as it does not increase the axial length of hydraulic pump.
The utility model also provides a kind of embodiment of hydraulic pump of excavator, have main pump and pioneer pump in the described hydraulic pump, described main pump has power input shaft, and described pioneer pump is arranged on the radial position of described power input shaft, and is positioned within the scope of axial length of described main pump.Described pioneer pump is arranged on the top of described main pump, and perhaps described pioneer pump and described main pump are positioned at same horizontal plane.
The entity structure diagram of excavator main pump that Fig. 3 b provides for the utility model and the position of pioneer pump relation.As shown in the figure, excavator comprises hydraulic pump, has main pump 510 and pioneer pump 520 in the described hydraulic pump, and described main pump 510 has power input shaft 511, described pioneer pump 520 is arranged on the radial position of described power input shaft 511, and is positioned within the scope of axial length of described main pump 510.
As from the foregoing, the utility model embodiment has following advantage:
Pioneer pump is positioned at the radial direction of main pump, and does not exceed the axial length range of main pump, therefore can not increase the axial length of complete machine, has effectively saved the space of complete machine, for necessary space has been saved in the design of medium-and-large-sized excavator.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. an excavator comprises hydraulic pump, has main pump and pioneer pump in the described hydraulic pump, described main pump has power input shaft, it is characterized in that described pioneer pump is arranged on the radial position of described power input shaft, and be positioned within the scope of axial length of described main pump.
2. excavator according to claim 1 is characterized in that described pioneer pump is arranged on the top of described main pump.
3. excavator according to claim 1 is characterized in that, described pioneer pump and described main pump are positioned at same horizontal plane.
4. the hydraulic pump of an excavator, have main pump and pioneer pump in the described hydraulic pump, described main pump has power input shaft, it is characterized in that, described pioneer pump is arranged on the radial position of described power input shaft, and is positioned within the scope of axial length of described main pump.
5. hydraulic pump according to claim 4 is characterized in that described pioneer pump is arranged on the top of described main pump.
6. hydraulic pump according to claim 4 is characterized in that, described pioneer pump and described main pump are positioned at same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200024982U CN201610563U (en) | 2010-01-19 | 2010-01-19 | Excavator and hydraulic pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200024982U CN201610563U (en) | 2010-01-19 | 2010-01-19 | Excavator and hydraulic pump thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610563U true CN201610563U (en) | 2010-10-20 |
Family
ID=42961195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200024982U Expired - Fee Related CN201610563U (en) | 2010-01-19 | 2010-01-19 | Excavator and hydraulic pump thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610563U (en) |
-
2010
- 2010-01-19 CN CN2010200024982U patent/CN201610563U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20170119 |