CN218493786U - Hydraulic pump assembly of dump truck - Google Patents
Hydraulic pump assembly of dump truck Download PDFInfo
- Publication number
- CN218493786U CN218493786U CN202222538780.8U CN202222538780U CN218493786U CN 218493786 U CN218493786 U CN 218493786U CN 202222538780 U CN202222538780 U CN 202222538780U CN 218493786 U CN218493786 U CN 218493786U
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- assembly
- gear
- pump body
- central shaft
- round hole
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Abstract
The utility model relates to a hydraulic pump assembly of a dump truck, an oil return pump body and an input pump body are connected with each other to form a pump cavity, one side of the pump cavity is rotatably provided with a driving gear assembly, the other side of the pump cavity is rotatably provided with a driven gear assembly, one end of a central shaft of the driving gear assembly passes through a first round hole of the input pump body and is used for connecting a driving device, the other end of the central shaft of the driving gear assembly is positioned in a second round hole of the oil return pump body, and a first gear is sleeved outside the other end of the central shaft of the driving gear assembly; one end of a central shaft of the driven gear assembly is positioned in a third round hole of the input pump body, and the other end of the central shaft of the driven gear assembly is positioned in a fourth round hole of the oil return pump body; and a second gear is sleeved outside the other end of the central shaft of the driven gear assembly, and arc chambers for increasing the flow are arranged at the root parts of the adjacent teeth of the first gear and the second gear. The advantages are that: the flow is increased, the oil pressure is more stable during operation, and the product performance and the industrial standard are better ensured.
Description
Technical Field
The utility model relates to a dump truck hydraulic pump assembly.
Background
The existing hydraulic pump is mainly characterized in that a plurality of plunger holes are formed in a pump body, plungers corresponding to the plunger holes are arranged in the plunger holes and can move in the plunger holes, an annular groove is formed in the position, corresponding to the plunger holes, of the circumferential surface of the pump body, a sealing gasket is arranged at the position, corresponding to the plunger holes, of the plunger holes in the annular groove, and an O-shaped ring and a sealing hoop are sequentially arranged in the annular groove. Has the following disadvantages: if the flow is increased, the operation is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a hydraulic pump assembly of a dump truck.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic pump assembly of a dump truck comprises an oil return pump body, an input pump body, a driving gear assembly, a driven gear assembly, a first gear and a second gear, wherein the oil return pump body and the input pump body are connected to form a pump cavity, one side of the pump cavity is rotatably provided with the driving gear assembly, the other side of the pump cavity is rotatably provided with the driven gear assembly, one end of a central shaft of the driving gear assembly penetrates through a first round hole of the input pump body and is used for being connected with a driving device, the other end of the central shaft of the driving gear assembly is located in a second round hole of the oil return pump body, and the first gear is sleeved outside the other end of the central shaft of the driving gear assembly; one end of a central shaft of the driven gear assembly is positioned in a third round hole of the input pump body, and the other end of the central shaft of the driven gear assembly is positioned in a fourth round hole of the oil return pump body; and a second gear is sleeved outside the other end of the central shaft of the driven gear assembly, and arc chambers for increasing the flow are arranged at the root parts of the adjacent teeth of the first gear and the second gear.
Further, bearings are arranged in the second round hole, the first round hole, the third round hole and the fourth round hole and used for being connected with one end of the corresponding central shaft.
Furthermore, a first long groove is formed in the other end of the central shaft of the driven gear assembly and the other end of the central shaft of the driving gear assembly, a second long groove corresponding to the first long groove is formed in the inner side wall of the first gear and the inner side wall of the second gear in an output mode, and the first long groove and the second long groove in pairs are connected in an embedded mode through rollers.
Furthermore, the second strip groove penetrates through the inner side walls of the first gear and the second gear up and down.
Furthermore, a connecting plate is arranged between the connecting surfaces of the oil return pump body and the input pump body, and gaskets are arranged at the connecting positions of the two sides of the connecting plate and the connecting positions of the oil return pump body and the input pump body.
Further, the driven gear of the driven gear assembly and the driving gear of the driving gear assembly are positioned on the input pump side of the pump cavity and are meshed with each other.
Further, the first gear and the second gear are located on the return pump side of the pump chamber and are meshed with each other.
Furthermore, the outer side of the oil return pump body is provided with a bolt and a gasket.
Further, the tooth crest cannot completely fill the full arc cavity.
The beneficial effects of the utility model are that: the curve structure of first gear and second gear outside tooth changes the increase flow, keeps the pump chamber internal flow to the principle to increase the circular arc cavity at the profile of tooth root and increase the flow, the oil pressure is more stable when making the operation, and better assurance product property can and industry standard: the clearance between the outer side of the teeth and the pump cavity is not less than 0.03mm and not more than 0.10mm; the transmission is more steady during operation, and the noise is lower.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a plan view of the oil return pump body.
Fig. 3 is a bottom view of the input pump body.
FIG. 4 is a schematic view of a driving gear set.
Fig. 5 is a schematic view of a driven gear set.
Fig. 6 is a schematic view of the first and second gears.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to the attached drawings 1-6, the hydraulic pump assembly of the dump truck comprises an oil return pump body 1, an input pump body 2, a driving gear assembly 3, a driven gear assembly 4, a first gear 5 and a second gear 6, wherein the oil return pump body and the input pump body are connected to form a pump cavity 7, one side of the pump cavity is rotatably provided with the driving gear assembly, the other side of the pump cavity is rotatably provided with the driven gear assembly, one end of a central shaft 8 of the driving gear assembly penetrates through a first round hole 9 of the input pump body and is used for being connected with a driving device, the other end of the central shaft 8 of the driving gear assembly is positioned in a second round hole 10 of the oil return pump body, and the other end of the central shaft 8 of the driving gear assembly is sleeved with the first gear 5; one end of a central shaft 11 of the driven gear assembly is positioned in a third round hole 12 of the input pump body, and the other end of the central shaft of the driven gear assembly is positioned in a fourth round hole 13 of the oil return pump body; and a second gear 6 is sleeved outside the other end of the central shaft of the driven gear assembly, and arc chambers 14 for increasing the flow are arranged at the root parts of the adjacent teeth 15 of the first gear and the second gear. The first round hole and one end of the central shaft of the driving gear assembly are kept in sliding seal.
A bearing 17 is arranged in a second round hole, a first round hole, a third round hole and a fourth round hole and used for being connected with one end of a corresponding central shaft. The outer wall of the bearing is connected with the inner walls of the second round hole, the first round hole, the third round hole and the fourth round hole in a sealing mode, and one end of a central shaft of the driving gear assembly penetrates through the corresponding bearing and keeps sliding sealing with the inner wall of the bearing.
A first long groove 18 is arranged at the other end of a central shaft of a driven gear assembly and the other end of the central shaft of a driving gear assembly, a second long groove 16 corresponding to the first long groove is arranged on the inner side walls of a first gear and a second gear in an output mode, and the first long groove and the second long groove in pair are connected in an embedded mode through a roller 19.
A hydraulic pump assembly of a dump truck is characterized in that a second strip-shaped groove penetrates through the inner side walls of a first gear and a second gear from top to bottom.
A connecting plate 20 is further arranged between the connecting surfaces of an oil return pump body and an input pump body, gaskets 21 are arranged at the connecting positions of the two sides of the connecting plate, the oil return pump body and the input pump body, and a pump cavity is kept sealed through the gaskets.
A hydraulic pump assembly for a dump truck, a driven gear 23 of a driven gear assembly and a driving gear 24 of a driving gear assembly are positioned on the input pump side of a pump cavity and are meshed with each other.
A first gear and a second gear are positioned on the side of a return oil pump body of a pump cavity and are meshed with each other.
A self-discharging automobile hydraulic pump assembly, the outer side of the oil return pump body is provided with a bolt 22 and a gasket.
A hydraulic pump assembly of a dump truck is characterized in that the top of a tooth cannot completely fill a full-arc cavity.
A hydraulic pump assembly of a dump truck is provided, and teeth of a first gear and a second gear are shown in figure 2.
Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a dump truck hydraulic pump assembly, includes the oil return pump body, inputs the pump body, drive gear subassembly, driven gear subassembly, first gear and second gear, its characterized in that: the oil return pump body and the input pump body are connected to form a pump cavity, one side of the pump cavity is rotatably provided with a driving gear assembly, the other side of the pump cavity is rotatably provided with a driven gear assembly, one end of a central shaft of the driving gear assembly penetrates through a first round hole of the input pump body and is connected with a driving device, the other end of the central shaft of the driving gear assembly is positioned in a second round hole of the oil return pump body, and a first gear is sleeved outside the other end of the central shaft of the driving gear assembly; one end of a central shaft of the driven gear assembly is positioned in a third round hole of the input pump body, and the other end of the central shaft of the driven gear assembly is positioned in a fourth round hole of the oil return pump body; and a second gear is sleeved outside the other end of the central shaft of the driven gear assembly, and arc chambers for increasing the flow are arranged at the root parts of the adjacent teeth of the first gear and the second gear.
2. The hydraulic pump assembly of the dump truck as claimed in claim 1, wherein: and bearings are arranged in the second round hole, the first round hole, the third round hole and the fourth round hole and are used for connecting one ends of the corresponding central shafts.
3. The hydraulic pump assembly of the dump truck as claimed in claim 2, wherein: the other end of the central shaft of the driven gear assembly and the other end of the central shaft of the driving gear assembly are provided with first long grooves, the inner side walls of the first gear and the second gear are provided with second long grooves corresponding to the first long grooves in an output mode, and the paired first long grooves and the paired second long grooves are connected in an embedded mode through rollers.
4. The hydraulic pump assembly of the dump truck as claimed in claim 3, wherein: the second strip-shaped groove penetrates through the inner side walls of the first gear and the second gear up and down.
5. The hydraulic pump assembly of the dump truck as claimed in claim 4, wherein: and a connecting plate is also arranged between the connecting surfaces of the oil return pump body and the input pump body, and gaskets are arranged at the connecting positions of the two sides of the connecting plate and the connecting positions of the oil return pump body and the input pump body.
6. The hydraulic pump assembly of the dump truck as claimed in claim 5, wherein: the driven gear of the driven gear assembly and the driving gear of the driving gear assembly are positioned on the input pump side of the pump cavity and are meshed with each other.
7. The hydraulic pump assembly of the dump truck as claimed in claim 6, wherein: the first gear and the second gear are located on a scavenge pump side of the pump chamber and are intermeshed.
8. The hydraulic pump assembly of the dump truck according to claim 7, wherein: and a bolt and a gasket are arranged on the outer side of the oil return pump body.
9. The hydraulic pump assembly of the dump truck according to claim 1, wherein: the tooth crest cannot completely fill the full arc cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538780.8U CN218493786U (en) | 2022-09-23 | 2022-09-23 | Hydraulic pump assembly of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538780.8U CN218493786U (en) | 2022-09-23 | 2022-09-23 | Hydraulic pump assembly of dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218493786U true CN218493786U (en) | 2023-02-17 |
Family
ID=85192640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222538780.8U Active CN218493786U (en) | 2022-09-23 | 2022-09-23 | Hydraulic pump assembly of dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218493786U (en) |
-
2022
- 2022-09-23 CN CN202222538780.8U patent/CN218493786U/en active Active
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