CN211648341U - Diesel engine fuel injection pump - Google Patents
Diesel engine fuel injection pump Download PDFInfo
- Publication number
- CN211648341U CN211648341U CN201922295886.8U CN201922295886U CN211648341U CN 211648341 U CN211648341 U CN 211648341U CN 201922295886 U CN201922295886 U CN 201922295886U CN 211648341 U CN211648341 U CN 211648341U
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- flange
- oil
- plate
- main part
- pump main
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- Expired - Fee Related
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Abstract
The utility model provides a diesel engine injection pump, including oil pump main part (1), the side fixed connection that is close to its top in the oil pump main part has an oil pipe (17), the top fixed mounting of oil pump main part has the oil feed device, the oil feed device includes inner tube (2), tube cap (4), inner tube (2) fixed connection is at the top of oil pump main part, tube cap (4) are through the latch mechanism joint on the inner tube, and the lower extreme of tube cap inner chamber cross-section change department is provided with the step, and the step lower extreme is provided with flange (8), and the flange inner circle is opened threadedly, and the screw thread top spin is equipped with flange board (9) with screw thread looks adaptation, and flange board (9) inner circle is provided with filter screen (3) and fixed plate (11), and the fixed plate joint is on flange board, wherein the filter screen upper end is through the. The utility model discloses, through the cooperation of above-mentioned relevant structure, reach the purpose of filtering the oil body, the effect of use is better.
Description
Technical Field
The utility model relates to a fuel injection pump technical field especially relates to a diesel engine fuel injection pump.
Background
The injection pump is an important component of an automotive diesel engine. The fuel injection pump assembly is usually an integral body formed by mounting components such as a fuel injection pump, a speed regulator and the like together. The governor is a component which ensures the low-speed operation of the diesel engine and the limitation of the maximum rotating speed and ensures a certain relation between the injection quantity and the rotating speed. The fuel injection pump is the most important part of the diesel engine and is regarded as the heart part of the diesel engine, and in the prior art, the fuel injection pump of the diesel engine has no filter screen structure convenient to replace, so that the filter screen is inconvenient to replace after being used for a long time.
SUMMERY OF THE UTILITY MODEL
According to the not enough of above prior art, the utility model provides a diesel engine injection pump.
In order to solve the technical problem, the utility model discloses a technical scheme does: a diesel engine fuel injection pump comprises an oil pump main body, wherein an oil outlet pipe is fixedly connected to the side surface, close to the top, of the oil pump main body, an oil inlet device is fixedly installed at the top of the oil pump main body, the oil inlet device comprises an inner pipe and a pipe cover, the inner pipe is fixedly connected to the top of the oil pump main body, the pipe cover is clamped on the inner pipe through a clamping mechanism, a step is arranged at the lower end of the section change position of an inner cavity of the pipe cover, a fixing ring is arranged in the step, an oil inlet pipe is fixedly connected to the top of the fixing ring, the top of the oil inlet pipe penetrates through the upper surface of the pipe cover and extends to the outside of the pipe cover, a flange is arranged at the lower end of the step, a flange plate matched with a thread is arranged on an inner ring of the flange plate in a screwed mode, a filter screen, the mounting groove is provided with four along flange board axis evenly distributed, the rigid coupling has the cassette on the fixed plate periphery, and the cassette size suits with the mounting groove, and the fixed plate passes through the cassette joint in the circular recess of flange board, the filter screen upper end round is elastic solid fixed ring.
Preferably: the clamping mechanism comprises guide grooves, an elastic plate and an elastic plate fixing groove, the elastic plate fixing groove and the pipe cover outer wall are arranged, the elastic plate fixing groove is divided into two parts, the elastic plate is connected in the elastic plate fixing groove, the elastic plate is close to an inner side fixedly connected with limiting block at the bottom of the elastic plate, the guide grooves are arranged on the outer wall of the inner pipe close to the top of the inner pipe, limiting holes are formed in the bottom of the guide grooves, and the size and the shape of the limiting holes are matched with the limiting blocks.
Preferably: the filter screen is in the shape of an inverted round table.
Preferably: the thread of the flange inner ring is fine thread.
The utility model has the advantages that: the utility model discloses a two sets of joint formula structures, the filter screen in the inside tube cap passes through the fixed plate and the flange plate between the joint is fixed promptly, and the joint between outside tube cap and the inner tube is fixed, can make the filter screen dismouting more convenient through this kind of structure, and the effect of use is better.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of a flange plate and a fixing plate according to the present invention;
fig. 3 is a schematic structural view of a partial sectional view of an assembled front view of the oil feed device of the present invention;
shown in the figure: the oil pipe comprises a main body, 2 inner pipes, 3 filter screens, 4 pipe covers, 5 elastic plates, 6 oil inlet pipes, 7 fixing rings, 8 flanges, 9 flange plates, 10 limiting blocks, 11 fixing plates, 12 guide grooves, 13 limiting holes, 14 clamping seats, 15 mounting grooves, 16 circular grooves and 17 oil outlet pipes.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the above objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings. It should be understood that the description of the embodiments of the present invention is provided for illustration only, and not for the purpose of limiting the invention.
In order to realize the utility model discloses the purpose, the utility model provides a diesel engine injection pump, the convenient problem that enough solution prior art exists.
As shown in fig. 1, be the utility model discloses a diesel engine injection pump, including oil pump main part 1, the side fixed connection that is close to its top in the oil pump main part 1 has an oil outlet pipe 17, the top fixed mounting of oil pump main part 1 has oil feed device, and oil feed device includes inner tube 2, tube cap 4, and 2 fixed connection of inner tube are at the top of oil pump main part 1, and tube cap 4 passes through the joint mechanism joint on inner tube 2.
Clamping mechanism includes guide way 12, elastic plate 5 and elastic plate fixed slot, 4 outer walls of tube cap are seted up to elastic plate 5 fixed slot, and the elastic plate fixed slot has two and be the axial symmetry and arranges, elastic plate 5 is connected in the elastic plate fixed slot, and the inboard fixedly connected with stopper 13 that elastic plate 5 is close to its bottom, guide way 12 is seted up on inner tube 2 is close to the outer wall at its top, and spacing hole 13 has been seted up to the bottom of guide way 12, and the size and the shape of spacing hole 13 suit with stopper 10, during the installation, only need move down the tube cap and make stopper 8 slide along guide way 9 inner walls, until on stopper 8 and the joint of spacing hole 10 can, otherwise when dismantling, when backward dismouting, upwards stimulate elastic plate 5, until stopper 10 breaks away from with spacing hole 13.
The lower end of the section change part of the inner cavity of the pipe cover 4 is provided with a step, a fixed ring 7 is arranged in the step, the top of the fixed ring 7 is fixedly connected with an oil inlet pipe 6, the top of the oil inlet pipe 6 penetrates through the upper surface of the pipe cover 4 and extends to the outside of the pipe cover 4, the lower end of the step is provided with a flange 8, the inner ring of the flange 8 is provided with a thread, a flange plate 9 matched with the thread is screwed on the thread, the inner ring of the flange plate 9 is provided with a filter screen 3 and a fixed plate 11, the circumferential surface of the inner ring of the flange plate 9 is provided with a circle of circular groove 16, the top surface of the flange plate 9 is provided with a mounting groove 15 close to the circular groove 16, the mounting groove 15 is provided with four flange plates 9 which are uniformly distributed along the axis of the flange plate 9, the circumferential surface of the fixed plate 11 is fixedly connected with a clamping seat 14, the size of the clamping seat 14 is, then, the fixing plate 11 is installed from the top surface of the flange plate 9, the fixing plate 11 is installed by aligning the clamping seat 14 with the installation groove 15, then the fixing plate 11 is placed in the circular groove 16 and rotated by a certain angle, the filter screen 3 can be fixed between the fixing plate 11 and the flange plate 9 after the fixing plate 11 is installed, finally the flange plate 9 is screwed in, after the flange plate 9 is screwed in, the fixing ring 7 is just fixed between the step and the flange plate 9, namely, the upper end of the fixing ring 7 is contacted with the step surface, and the lower end is contacted with the upper end surface of the flange plate 9.
Furthermore, the filter screen 3 is in an inverted circular truncated cone shape, the contact area of the oil body and the filter screen can be increased through the inverted circular truncated cone-shaped structure, and the filtering rate is improved.
Further, the thread of the inner ring of the flange 8 is a fine thread, and the fine thread is selected in the present embodiment because of the thickness of the flange.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the scope of protection must be determined by the scope of claims.
Claims (4)
1. A diesel engine fuel injection pump which characterized in that: including oil pump main part (1), the side fixed connection that is close to its top on oil pump main part (1) has oil outlet pipe (17), the top fixed mounting of oil pump main part (1) has the oil feed device, the oil feed device includes inner tube (2), tube cap (4), inner tube (2) fixed connection is at the top of oil pump main part, tube cap (4) pass through the joint mechanism joint on inner tube (2), the lower extreme of tube cap (4) inner chamber cross-section change department is provided with the step, is provided with retainer plate (7) in the step, the top fixedly connected with oil inlet pipe (6) of retainer plate (7), the top of oil inlet pipe (6) runs through the upper surface of tube cap (4) and extends to the outside of tube cap (4), the step lower extreme is provided with flange (8), flange (8) inner circle is opened threadedly, the screw thread top is equipped with flange board (9) with screw thread looks adaptation, flange board (9) inner circle is provided with filter screen (3) and fixed, the periphery of the inner ring of the flange plate (9) is provided with a circle of circular groove (16), the top surface of the flange plate (9) is provided with a mounting groove (15) close to the position of the circular groove (16), the mounting grooves (15) are provided with four uniform distributions along the axis of the flange plate (9), a clamping seat (14) is fixedly connected onto the periphery of the fixing plate (11), the size of the clamping seat (14) is matched with that of the mounting groove (15), the fixing plate (11) is clamped in the circular groove of the flange plate (9) through the clamping seat (14), and the circle of the upper end of the filter screen (3) is an elastic fixing.
2. The diesel injection pump of claim 1, further comprising: clamping mechanism includes guide way (12), elastic plate (5) and elastic plate fixed slot, the elastic plate fixed slot is seted up in tube cap (4) outer wall, and the elastic plate fixed slot has two and is axisymmetric arrangement, elastic plate (5) are connected in the elastic plate fixed slot, and elastic plate (5) are close to inboard fixedly connected with stopper (10) of its bottom, guide way (12) are seted up on inner tube (2) are close to the outer wall at its top, and spacing hole (13) have been seted up to the bottom of guide way (12), the size and the shape of spacing hole (13) suit with stopper (10).
3. The diesel injection pump of claim 1, further comprising: the filter screen (3) is in an inverted round table shape.
4. The diesel injection pump of claim 1, further comprising: the threads of the inner ring of the flange (8) are fine threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295886.8U CN211648341U (en) | 2019-12-19 | 2019-12-19 | Diesel engine fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295886.8U CN211648341U (en) | 2019-12-19 | 2019-12-19 | Diesel engine fuel injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648341U true CN211648341U (en) | 2020-10-09 |
Family
ID=72697244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922295886.8U Expired - Fee Related CN211648341U (en) | 2019-12-19 | 2019-12-19 | Diesel engine fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648341U (en) |
-
2019
- 2019-12-19 CN CN201922295886.8U patent/CN211648341U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |