CN215440958U - Plunger pump and sewing machine with same - Google Patents
Plunger pump and sewing machine with same Download PDFInfo
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- CN215440958U CN215440958U CN202120648337.9U CN202120648337U CN215440958U CN 215440958 U CN215440958 U CN 215440958U CN 202120648337 U CN202120648337 U CN 202120648337U CN 215440958 U CN215440958 U CN 215440958U
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- oil
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- pump body
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Abstract
The utility model relates to the technical field of sewing equipment, and discloses a plunger pump and a sewing machine with the plunger pump, which comprise a plunger pump body, an oil pump shaft and a plunger pump base, wherein the plunger pump base is arranged at one end of the plunger pump body and is of an integrated structure with the plunger pump body; and a first oil return pipe and a second oil return pipe which extend outwards are arranged on the plunger pump body, and the first oil return pipe and the second oil return pipe are communicated with the inside of the plunger pump body. According to the utility model, the first oil return pipe and the second oil return pipe can respectively return oil to the machine head or an oil leakage position, the first oil return pipe and the second oil return pipe can simultaneously return oil and can also independently return oil without mutual influence, the lubricating oil at different positions of the sewing machine can be returned into the plunger pump body while the high-speed and low-speed movement is met, and the oil return and supply efficiency of the plunger pump is improved.
Description
Technical Field
The utility model relates to the technical field of sewing equipment, in particular to a plunger pump and a sewing machine with the plunger pump.
Background
The existing flat sewing machine has a short piece sewing process in the use process, and the sewing machine is in a working state with short single sewing time and multiple working times in unit time, belongs to intermittent movement, and can be in an intermittent oil supply state for a long time. In addition, some sewing processes can enable the sewing machine to work in a low-rotation-speed state for a long time, and at the moment, the sewing machine can also be in a low-rotation-speed oil supply state.
The oil pump that present sewing machine used generally is the impeller pump, because there is sealed structure between blade and oil pump cover, the layer board, when the oil pump stop work, lubricating oil can flow out in the oil pump fast, and the impeller pump produces the effect of inhaling the row through the inertia effect at the during operation, under the circumstances that the rotational speed reduces, the fuel feeding ability of oil pump can greatly reduced. Therefore, the oil supply amount can meet the use requirement in normal sewing, but when the sewing machine carries out individual sewing processes, the sewing machine can be in intermittent oil supply, low-speed oil supply or other oil supply conditions, so that the oil supply of an oil pump is insufficient, the machine is in an oil-free state for a long time, the phenomena of abrasion, blocking and the like of the machine occur, and the quality and the service life of products are influenced. The utility model discloses a sewing machine oil pump as chinese utility model patent CN201120553120.6, including the pump body, main rotor impeller, impeller layer board, filter screen lid, pump body side is equipped with the plunger hole, downthehole oil return plunger, plunger spring and the plunger screw of being equipped with in proper order of plunger, be equipped with the impeller mounting hole on the pump body, peg graft in the impeller mounting hole main rotor impeller's main shaft, main rotor impeller lower extreme is in proper order with impeller layer board and filter screen lid closing cap, main rotor impeller's main shaft is two flat potential structures. The oil pump in the above patent is when the impeller rotates, and oil return efficiency is low, and the volume of returning oil is few.
Disclosure of Invention
Aiming at the defect of low oil return efficiency in the prior art, the utility model provides the plunger pump with high oil return efficiency and the sewing machine with the plunger pump.
In order to solve the technical problem, the utility model is solved by the following technical scheme:
a plunger pump comprises a plunger pump body, an oil pump shaft and a plunger pump base, wherein the plunger pump base is arranged at one end of the plunger pump body and is of an integrated structure with the plunger pump body; the lower end of the oil pump shaft is provided with an impeller which is arranged in the plunger pump base; the plunger pump body is provided with plunger components corresponding to the first eccentric part and the second eccentric part respectively, and the plunger components are arranged on the outer side wall of the plunger pump body and extend outwards; the plunger pump body is also provided with an oil spitting hole which is communicated with the inside of the plunger pump body and is arranged on one side of the plunger assembly; and a first oil return pipe and a second oil return pipe which extend outwards are arranged on the plunger pump body, and the first oil return pipe and the second oil return pipe are communicated with the inside of the plunger pump body.
Preferably, the plunger assembly comprises a plunger tube and a plunger, the plunger is slidably arranged in the plunger tube in a penetrating manner, and the plunger is respectively matched with the first eccentric part and the second eccentric part and respectively acts on the first eccentric part and the second eccentric part.
Preferably, the plunger assembly further comprises a plunger spring and a plunger screw, the plunger spring is arranged in the plunger in a penetrating mode, one end of the plunger spring is abutted against the inside of the plunger, the plunger screw is screwed at the outer end of the plunger pipe, and the other end of the plunger spring is abutted against the plunger screw.
Preferably, the plunger pump base is provided with an oil supply pipeline for supplying oil to an upper shaft middle sleeve of the sewing machine.
Preferably, the other end of the plunger pump body is provided with an oil pump mounting plate and an oil supply pipe for supplying oil to a lower shaft rear sleeve of the sewing machine, the oil pump mounting plate is mounted at the other end of the plunger pump body, and the oil supply pipe penetrates through the oil pump mounting plate and is mounted on the plunger pump body.
A sewing machine comprising a plunger pump as described above.
Due to the adoption of the technical scheme, the utility model has the remarkable technical effects that: the oil pump shaft rotates, first eccentric portion, the second eccentric portion, the impeller synchronous rotation, first eccentric portion and second eccentric portion realize the oil feed and the oil return with plunger subassembly interact and impeller rotation respectively, first time oil pipe and second return oil pipe can carry out the oil return to aircraft nose or oil impregnate position respectively, first time oil pipe and second return oil pipe can return oil simultaneously also can singly return oil each other not influence, can satisfy when high low-speed motion with the lubricating oil of sewing machine different positions back into the plunger pump internal, improve the efficiency of plunger pump oil return and fuel feeding.
Drawings
Fig. 1 is a schematic view of a first three-dimensional structure of the present invention.
Fig. 2 is a schematic perspective view of an oil pump shaft.
Fig. 3 is a schematic perspective view of the plunger pump.
Fig. 4 is a schematic diagram of an explosive structure of the present invention.
The names of the parts indicated by the numerical references in the drawings are as follows: the oil pump comprises a plunger pump body 1, an oil pump shaft 2, a plunger pump base 3, a first eccentric part 4, a second eccentric part 5, an impeller 6, an oil spitting hole 7, a first oil return pipe 8, a second oil return pipe 9, a plunger pipe 10, a plunger 11, a plunger 12, a plunger spring 13, a plunger screw 14, an oil supply pipeline 15, an oil pump cover 16, an oil pump mounting plate and an oil supply pipe 17.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The utility model provides a plunger pump, as shown in fig. 1-4, including the plunger pump body 1, oil pump shaft 2, plunger pump base 3 sets up in the plunger pump body 1 below and with the plunger pump body 1 formula structure as an organic whole, and oil pump shaft 2 rotationally wears to establish in the plunger pump body 1, is equipped with first eccentric portion 4 and sets up in the second eccentric portion 5 of first eccentric portion 4 below on the oil pump shaft 2, and first eccentric portion 4 and second eccentric portion 5 all set up in the plunger pump body 1. The plunger pump body 1 is provided with plunger components corresponding to the first eccentric part 4 and the second eccentric part 5 respectively, and the plunger components are arranged on the outer side wall of the plunger pump body 1 and extend outwards. The lower extreme of oil pump axle 2 is equipped with impeller 6, and impeller 6 sets up in plunger pump base 3. An oil spitting hole 7 is further formed in the plunger pump body 1, and the oil spitting hole 7 is communicated with the interior of the plunger pump body 1 and is arranged on one side of the plunger assembly. And a first oil return pipe 8 and a second oil return pipe 9 which extend outwards are arranged on the plunger pump body 1, and the first oil return pipe 8 and the second oil return pipe 9 are communicated with the inside of the plunger pump body 1. The first eccentric part 4 and the second eccentric part 5 are respectively and symmetrically arranged on the oil pump shaft 2, and the radius of the first eccentric part 4 and the radius of the second eccentric part 5 are larger than that of the oil pump shaft 2. The oil pump shaft 2 rotates, first eccentric portion 4, second eccentric portion 5, impeller 6 synchronous revolution, first eccentric portion 4 and second eccentric portion 5 realize the fuel feeding with plunger subassembly interact respectively, first time oil pipe 8 and second time oil pipe 9 can return oil to aircraft nose or oil seepage position respectively, first time oil pipe 8 and second time oil pipe 9 can return oil simultaneously also can singly return oil and do not influence each other, can satisfy when high low-speed motion with the lubricating oil of sewing machine different positions return into the plunger pump body 1 in, improve the efficiency of plunger pump oil return and fuel feeding.
Plunger subassembly includes plunger pipe 10 and plunger 11, and plunger 11 wears to establish in plunger pipe 10 slidable, and plunger 11 cooperates and acts on first eccentric portion 4 respectively with first eccentric portion 4 and second eccentric portion 5 respectively. When the oil pump shaft 2 rotates, the plunger 11 acts on the first eccentric part 4 and the second eccentric part 5 respectively, and oil supply and oil return of the plunger pump are achieved.
Example 2
As shown in fig. 1 to 4, based on embodiment 1, the plunger assembly further includes a plunger spring 12 and a plunger screw 13, the plunger spring 12 is inserted into the plunger 11, and one end of the plunger spring 12 abuts against the inside of the plunger 11, the plunger screw 13 is screwed at the outer end of the plunger tube 10, and the other end of the plunger spring 12 abuts against the plunger screw 13. When the first eccentric part 4 and the second eccentric part 5 rotate to abut against the plunger 11, the plunger 11 is pushed to move, and when the first eccentric part 4 and the second eccentric part 5 continue to rotate and are separated from the plunger 11, the plunger spring 12 pushes the plunger 11 to reset, so that the structure and the mode of sliding the plunger 11 in the plunger tube 10 are simplified.
Example 3
In the plunger pump shown in fig. 1 to 4, in embodiment 2, an oil supply pipe 14 for supplying oil to an upper shaft center sleeve of a sewing machine is provided on a plunger pump base 3. Still include oil pump cover 15, oil pump cover 15 is installed on plunger pump base 3. The other end of the plunger pump body 1 is provided with an oil pump mounting plate 16 and an oil supply pipe 17 for supplying oil to a lower shaft rear sleeve of the sewing machine, the oil pump mounting plate 16 is mounted at the other end of the plunger pump body 1, and the oil supply pipe 17 penetrates through the oil pump mounting plate 16 and is mounted on the plunger pump body 1.
When the oil pump works, the rotating shaft drives the oil pump shaft 2 to rotate, and the first eccentric part 4, the second eccentric part 5 and the impeller 6 synchronously rotate. The first eccentric part 4 and the second eccentric part 5 respectively interact with the plunger 11, the impeller 6 rotates to realize upward oil supply, so that an oil pump supplies oil to an upper shaft sleeve of the sewing machine from an oil supply pipeline 14, the first eccentric part 4 interacts with the plunger to supply oil to a lower shaft rear sleeve of the sewing machine through an oil supply pipe 17, and the first oil return pipe 8 and the second oil return pipe 9 respectively return oil from a machine head or other oil seepage positions under the action of the first eccentric part 4 and the second eccentric part 5 and discharge the oil from the corresponding oil discharge holes 7, so that the oil return efficiency is improved.
A sewing machine comprising a plunger pump as described above.
Claims (6)
1. The utility model provides a plunger pump, includes the plunger pump body (1), oil pump axle (2), plunger pump base (3) set up in the plunger pump body (1) one end and with the plunger pump body (1) formula structure as an organic whole, oil pump axle (2) rotationally wear to establish in the plunger pump body (1), its characterized in that: the oil pump shaft (2) is provided with a first eccentric part (4) and a second eccentric part (5) arranged below the first eccentric part (4), and the first eccentric part (4) and the second eccentric part (5) are both arranged in the plunger pump body (1);
the lower end of the oil pump shaft (2) is provided with an impeller (6), and the impeller (6) is arranged in the plunger pump base (3);
the plunger pump body (1) is provided with plunger components corresponding to the first eccentric part (4) and the second eccentric part (5) respectively, and the plunger components are arranged on the outer side wall of the plunger pump body (1) and extend outwards;
an oil spitting hole (7) is further formed in the plunger pump body (1), and the oil spitting hole (7) is communicated with the interior of the plunger pump body (1) and is arranged on one side of the plunger assembly;
be equipped with first oil return pipe (8) and second oil return pipe (9) of outside extension on the plunger pump body (1), first oil return pipe (8) and second oil return pipe (9) all communicate with each other with plunger pump body (1) inside.
2. A plunger pump according to claim 1, characterized in that: plunger subassembly includes plunger pipe (10) and plunger (11), and plunger (11) wear to establish in plunger pipe (10) slidable, plunger (11) respectively with first eccentric portion (4) and second eccentric portion (5) cooperation and act on respectively on first eccentric portion (4) and second eccentric portion (5).
3. A plunger pump according to claim 2, characterized in that: the plunger assembly further comprises a plunger spring (12) and a plunger screw (13), the plunger spring (12) penetrates through the plunger (11) and one end of the plunger spring is abutted to the inside of the plunger (11), the plunger screw (13) is screwed at the outer end of the plunger pipe (10), and the other end of the plunger spring (12) is abutted to the plunger screw (13).
4. A plunger pump according to claim 1, characterized in that: an oil supply pipeline (14) for supplying oil to an upper shaft middle sleeve of the sewing machine is arranged on the plunger pump base (3).
5. A plunger pump according to claim 4, characterized in that: the other end of the plunger pump body (1) is provided with an oil pump mounting plate (16) and an oil supply pipe (17) for supplying oil to a lower shaft rear sleeve of the sewing machine, the oil pump mounting plate (16) is mounted at the other end of the plunger pump body (1), and the oil supply pipe (17) is arranged on the oil pump mounting plate (16) in a penetrating mode and mounted on the plunger pump body (1).
6. A sewing machine characterized by: comprising a plunger pump according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648337.9U CN215440958U (en) | 2021-03-30 | 2021-03-30 | Plunger pump and sewing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648337.9U CN215440958U (en) | 2021-03-30 | 2021-03-30 | Plunger pump and sewing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215440958U true CN215440958U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120648337.9U Active CN215440958U (en) | 2021-03-30 | 2021-03-30 | Plunger pump and sewing machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215440958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216897A (en) * | 2022-08-22 | 2022-10-21 | 飞马(天津)缝纫机有限公司 | Sewing machine with automatic oil supply and return mechanism |
-
2021
- 2021-03-30 CN CN202120648337.9U patent/CN215440958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216897A (en) * | 2022-08-22 | 2022-10-21 | 飞马(天津)缝纫机有限公司 | Sewing machine with automatic oil supply and return mechanism |
| CN115216897B (en) * | 2022-08-22 | 2023-07-21 | 飞马(天津)缝纫机有限公司 | Sewing machine with automatic oil supply and return mechanism |
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