CN219795424U - Sealing and anti-leakage structure for flange of fuel injection pump - Google Patents
Sealing and anti-leakage structure for flange of fuel injection pump Download PDFInfo
- Publication number
- CN219795424U CN219795424U CN202321175745.2U CN202321175745U CN219795424U CN 219795424 U CN219795424 U CN 219795424U CN 202321175745 U CN202321175745 U CN 202321175745U CN 219795424 U CN219795424 U CN 219795424U
- Authority
- CN
- China
- Prior art keywords
- flange
- sealing
- hole
- injection pump
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 53
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 239000000446 fuel Substances 0.000 title claims description 8
- 239000000945 filler Substances 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 4
- 239000003921 oil Substances 0.000 abstract description 16
- 125000006850 spacer group Chemical group 0.000 abstract description 10
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model provides an oil injection pump flange seals antiseep structure, includes the oil injection pump casing, and the camshaft is installed to the casing bottom, and the flange board is installed to casing one side, has seted up the mounting hole on the flange board, and the camshaft passes the mounting hole, the installation Kong Nachao has a step hole to the outside processing of casing one side, forms annular installation region between step hole and the camshaft outside that passes, installs sealing filler in the annular installation region, be provided with the spacer ring between the sealing filler, the spacer ring separates sealing filler, the external diameter of spacer ring is less than the diameter of step hole, forms a space region between spacer ring and the step hole lateral wall, the connecting hole has been seted up on the flange board, connecting hole and space region intercommunication. According to the utility model, the convex wheel shaft and the flange are sealed through the plurality of sealing fillers, the space rings are arranged between the sealing fillers, and the gaps are arranged between the outer parts of the space rings and the mounting holes, so that redundant lubricating oil can be discharged and stored conveniently, and the problem that the external equipment is polluted and fails due to leakage of the lubricating oil is avoided.
Description
Technical Field
The utility model relates to the field of fuel injection pumps, in particular to a flange sealing anti-leakage structure of a fuel injection pump.
Background
The inside plunger spare that is provided with of injection pump, injection pump bottom is provided with the camshaft, the camshaft is driven by outside speed regulator control, drive plunger spare through the epaxial cam of camshaft, make injection pump oil, it has lubricating oil to annotate in the casing bottom generally, when the camshaft rotates like this, reduce the frictional force of cam and the interior tappet body of injection pump, and the flange is installed to injection pump casing one side, the camshaft passes the flange, seal through the sealing washer between flange and the camshaft, after a long time, the sealing washer produces ageing, lead to lubricating oil to follow camshaft and flange junction seepage.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a flange sealing anti-leakage structure of an oil injection pump aiming at the defects of the prior art. In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an oil injection pump flange seals antiseep structure, includes the oil injection pump casing, and the camshaft is installed to the casing bottom, and the flange board is installed to casing one side, has seted up the mounting hole on the flange board, and the camshaft passes the mounting hole, the installation Kong Nachao has a step hole to the outside processing of casing one side, forms annular installation region between step hole and the camshaft outside that passes, installs sealing filler in the annular installation region, be provided with the spacer ring between the sealing filler, the spacer ring separates sealing filler, the external diameter of spacer ring is less than the diameter of step hole, forms a space region between spacer ring and the step hole lateral wall, the connecting hole has been seted up on the flange board, connecting hole and space region intercommunication.
Furthermore, the tail part of the annular installation area is provided with a pressing sleeve, the pressing sleeve presses the tightly sealing packing, and the periphery of the pressing sleeve is connected with the side wall of the step hole through threads.
Further, a joint is installed on the connecting hole.
Further, the sealing filler adopts a highly polished metal ring.
Further, the periphery of the flange plate is fixed on the shell through bolts, elastic pads and gaskets, and a first sealing ring and a second sealing ring are arranged between the flange plate and the shell.
Compared with the prior art, the flange sealing anti-leakage structure of the oil injection pump has the advantages that the cam shaft and the flange are sealed through the plurality of sealing fillers, the space rings are arranged between the sealing fillers, and gaps are arranged between the outer parts of the space rings and the mounting holes, so that redundant lubricating oil can be discharged, and the problem that the lubricating oil leaks to cause pollution of external equipment is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
the device comprises a shell, a cam shaft, a flange plate, a boss, a sealing filler, a pressing sleeve, a spacer ring, a gap area, a connector, a first sealing ring, a second sealing ring and a second sealing ring, wherein the first sealing ring is arranged on the shell, the second sealing ring is arranged on the cam shaft, the first sealing ring is arranged on the cam shaft, the second sealing ring is arranged on the flange plate, the second sealing ring is arranged on the cam shaft, the first sealing ring is arranged on the flange plate, the second sealing ring is arranged on the cam shaft, and the second sealing ring is arranged on the flange plate.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below.
As shown in FIG. 1, an oil injection pump flange seal antiseep structure, including oil injection pump casing 1, casing 1 internally mounted has the plunger, and camshaft 2 is installed to casing 1 bottom, by camshaft 2 drive plunger, flange board 3 is installed to casing 1 one side, and wherein, processing has the locating hole on casing 1, is provided with boss 4 on the flange board 3, and boss 4 card is gone into to the locating hole, and flange board 3 periphery is installed on oil injection pump casing 1 through bolt, bullet pad and gasket simultaneously, processing has the mounting hole in the middle of the boss 4, and camshaft 2 one end passes the mounting hole and is connected with outside speed regulator, by the rotational speed of outside speed regulator control camshaft.
A step hole is processed on one side, facing the outside of the shell body 1, of the mounting hole, an annular mounting area is formed between the step hole and the outside of a penetrated cam shaft, sealing filler 5 is mounted in the annular mounting area, the sealing filler 5 is a highly polished metal ring, a pressing sleeve 6 is arranged at the tail part of the annular mounting area, the periphery of the pressing sleeve 6 is connected with the side wall of the step hole through threads, the pressing sleeve 6 presses the sealing filler 5 to seal the inside of the mounting hole, in the embodiment, two sealing fillers are arranged on one side, facing the inside of the shell body 1, one sealing filler is arranged on one side, facing the outside of the shell body, of the sealing filler is separated from the sealing filler facing the outside of the shell body through a spacer 7, the external diameter of the space ring 7 is smaller than the diameter of the step hole, so that a gap area 8 is formed between the space ring 7 and the side wall of the step hole, a connecting hole is formed in a boss of the flange plate 3, the connecting hole is communicated with the gap area 8, a joint 9 is arranged on the connecting hole, after the sealing filler is aged, lubricating oil in the shell 1 can enter the gap area 8, the gap area 8 is communicated with the connecting hole, the joint 9 outputs part of oil and then temporarily stores the part of oil in an external oil storage box, and oil in the oil storage box is cleaned during later maintenance, so that the problem of equipment failure caused by leakage of the lubricating oil in the oil injection pump into other parts can be avoided.
The boss 4 outside is connected with first sealing washer 10, is connected with second sealing washer 11 on the flange board 3, makes flange board 3 and the peripheral sealing connection of casing locating hole through first sealing washer 10 and second sealing washer 11, prevents the inside lubricating oil seepage of casing from the locating hole.
The utility model is not limited to the embodiments described, but a person skilled in the art may make modifications or changes without departing from the spirit of the utility model, i.e. the scope of the disclosure, and the scope of the utility model is defined by the claims.
Claims (5)
1. The utility model provides an oil spout pump flange seals antiseep structure, includes the oil spout pump casing, and the camshaft is installed to the casing bottom, and the flange board is installed to casing one side, has seted up the mounting hole on the flange board, and the camshaft passes the mounting hole, its characterized in that: the installation Kong Nachao is provided with a step hole towards one side outside the shell, an annular installation area is formed between the step hole and the outer side of the penetrated cam shaft, sealing filler is installed in the annular installation area, a space ring is arranged between the sealing filler, the space ring separates the sealing filler, the outer diameter of the space ring is smaller than the diameter of the step hole, a gap area is formed between the space ring and the side wall of the step hole, a connecting hole is formed in the flange plate, and the connecting hole is communicated with the gap area.
2. The fuel injection pump flange seal leakage prevention structure according to claim 1, characterized in that: the tail part of the annular installation area is provided with a pressing sleeve, the pressing sleeve presses the tight sealing packing, and the periphery of the pressing sleeve is connected with the side wall of the step hole through threads.
3. The fuel injection pump flange seal leakage prevention structure according to claim 1, characterized in that: and the connecting hole is provided with a joint.
4. The fuel injection pump flange seal leakage prevention structure according to claim 1, characterized in that: the sealing filler adopts a highly polished metal ring.
5. The fuel injection pump flange seal leakage prevention structure according to claim 1, characterized in that: the periphery of the flange plate is fixed on the shell through bolts, elastic pads and gaskets, and a first sealing ring and a second sealing ring are arranged between the flange plate and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175745.2U CN219795424U (en) | 2023-05-16 | 2023-05-16 | Sealing and anti-leakage structure for flange of fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175745.2U CN219795424U (en) | 2023-05-16 | 2023-05-16 | Sealing and anti-leakage structure for flange of fuel injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795424U true CN219795424U (en) | 2023-10-03 |
Family
ID=88178878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321175745.2U Active CN219795424U (en) | 2023-05-16 | 2023-05-16 | Sealing and anti-leakage structure for flange of fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795424U (en) |
-
2023
- 2023-05-16 CN CN202321175745.2U patent/CN219795424U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |