阅读说明：本技术 一种小型高效汽轮机用顶轴油泵装置 (Top shaft oil pump device for small efficient steam turbine ) 是由 李明震 于 2020-08-10 设计创作，主要内容包括：本发明公开了一种小型高效汽轮机用顶轴油泵装置,具有泵体,泵体中穿设有传动轴,泵体内装有第一滑动斜块、第二滑动斜块、第一导向柱、第二导向柱、第一柱塞体、第二柱塞体、第一斜盘和第二斜盘,第一导向柱装在第一斜盘一端,第一柱塞体装在第一斜盘另一端,第二导向柱装在第二斜盘一端,第二柱塞体装在第二斜盘另一端,第一柱塞体伸出端对应泵体的进油口,第二柱塞体伸出端对应泵体的出油口,泵体上设有第一滤网层和第二滤网层,第一滤网层对应进油口且用于对进入到进油口处的油进行过滤,第二滤网层对应出油口且用于对从出油口处出去的油进行过滤。该油泵装置减少灰尘或杂质的外入,保障油泵的正常稳定运行,提高整体使用时间和使用寿命。(The invention discloses a top shaft oil pump device for a small high-efficiency steam turbine, which comprises a pump body, wherein a transmission shaft penetrates through the pump body, a first sliding inclined block, a second sliding inclined block, a first guide column and a second guide column are arranged in the pump body, first plunger body, the second plunger body, first sloping cam plate and second sloping cam plate, first guide post dress is in first sloping cam plate one end, first plunger body dress is at the first sloping cam plate other end, second guide post dress is in second sloping cam plate one end, the second plunger body dress is at the second sloping cam plate other end, first plunger body stretches out the oil inlet that the end corresponds the pump body, the second plunger body stretches out the oil-out that the end corresponds the pump body, be equipped with first filter screen layer and second filter screen layer on the pump body, first filter screen layer corresponds the oil inlet and is used for filtering the oil that enters into oil inlet department, the second filter screen layer corresponds the oil-out and is used for filtering the oil of going out from oil-out department. The oil pump device reduces the external introduction of dust or impurities, ensures the normal and stable operation of the oil pump, and improves the whole service time and the service life.)

1. The utility model provides a small-size high-efficient apical axis oil pump device for steam turbine which characterized in that: the oil pump is provided with a pump body (1), a transmission shaft (2) penetrates through the pump body (1), a first sliding inclined block (3), a second sliding inclined block (4), a first guide column (5), a second guide column (6), a first plunger body (7), a second plunger body (8), a first swash plate (18) and a second swash plate (19) are installed in the pump body (1), the first guide column (5) is installed at one end of the first swash plate (18), the first plunger body (7) is installed at the other end of the first swash plate (18) through the first sliding inclined block (3), the second guide column (6) is installed at one end of the second swash plate (19), the second plunger body (8) is installed at the other end of the second swash plate (19) through the second sliding inclined block (4), and the extending end of the first plunger body (7) corresponds to an oil inlet of the pump body (1), the extending end of the second plunger body (8) corresponds to an oil outlet of the pump body (1), a first filter screen layer (9) and a second filter screen layer (10) are further arranged on the pump body (1), the first filter screen layer (9) corresponds to the oil inlet and is used for filtering oil entering the oil inlet, and the second filter screen layer (10) corresponds to the oil outlet and is used for filtering oil exiting from the oil outlet.

2. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: when the oil inlet is in an initial state without oil, the height of the first sliding inclined block (3) is lower than that of the second sliding inclined block (4).

3. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: when oil is fed from the oil inlet and discharged from the oil outlet, the height of the first sliding inclined block (3) is higher than that of the second sliding inclined block (4).

4. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: and the first guide post (5) and the second guide post (6) are sleeved with buffer springs (11).

5. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: the afterbody of transmission shaft (2) is connected with location axle (13) through first shaft coupling (12), the cover is equipped with compression spring (14) on location axle (13).

6. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: the central axis of the transmission shaft (2) and the central axis of the positioning shaft (13) are positioned on the same straight line.

7. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: the head end of the transmission shaft (2) is connected with an external part through a second coupler (15).

8. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 6, wherein: the central axis of the transmission shaft (2), the central axis of the first guide column (5), the central axis of the second guide column (6), the central axis of the first plunger body (7) and the central axis of the second plunger body (8) are distributed in parallel.

9. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: the transmission shaft (2) and the pump body (1) are connected through a first inclined bearing (16).

10. The top shaft oil pump device for a small high-efficiency steam turbine according to claim 1, wherein: and a second inclined bearing (17) is arranged between the positioning shaft (13) and the pump body (1).

Technical Field

The invention relates to the technical field of oil pumps, in particular to a top shaft oil pump device for a small efficient steam turbine.

Background

With the continuous progress of society, the electric power industry has been rapidly developed. In the electrical industry, various power generation plants are often used, wherein a steam turbine is an important component. The steam turbine has many components, and the oil pump is one of them. The existing oil pump for the steam turbine is complex in structure and often damaged in a long-time use process, but the reason is that dust or impurities are often mixed in the long-time operation process to cause blockage of a regulating valve, finally, the bearing of the oil pump is broken, and a coupler is damaged; therefore, people need to overhaul and maintain regularly, and great inconvenience is brought to the practical use of people.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the problem that exists among the above-mentioned background art, provide a small-size high-efficient apical axis oil pump device for steam turbine, simple structure reduces the external income of dust or impurity, and the normal steady operation of guarantee oil pump improves whole live time and life, is convenient for extensively promote and use.

The technical scheme adopted by the invention for solving the technical problems is as follows: a top shaft oil pump device for a small high-efficiency steam turbine comprises a pump body, wherein a transmission shaft penetrates through the pump body, a first sliding inclined block, a second sliding inclined block, a first guide column, a second guide column, a first plunger body, a second plunger body, a first swash plate and a second swash plate are installed in the pump body, the first guide column is installed at one end of the first swash plate, the first plunger body is installed at the other end of the first swash plate through the first sliding inclined block, the second guide column is installed at one end of the second swash plate, the second plunger body is installed at the other end of the second swash plate through the second sliding inclined block, the extending end of the first plunger body corresponds to an oil inlet of the pump body, the extending end of the second plunger body corresponds to an oil outlet of the pump body, a first filter screen layer and a second filter screen layer are further arranged on the pump body, the first filter screen layer corresponds to the oil inlet and is used for filtering oil entering the oil inlet, the second filter screen layer corresponds to the oil outlet and is used for filtering oil which is discharged from the oil outlet.

Further specifically, in the above technical scheme, when the oil inlet is in an initial state without oil, the height of the first sliding inclined block is lower than that of the second sliding inclined block.

Further specifically, in the above technical scheme, when oil enters the oil inlet and exits from the oil outlet, the height of the first sliding inclined block is higher than that of the second sliding inclined block.

More specifically, in the above technical solution, the first guide post and the second guide post are both sleeved with buffer springs.

Further specifically, in the above technical scheme, the tail of the transmission shaft is connected with a positioning shaft through a first coupler, and a compression spring is sleeved on the positioning shaft.

More specifically, in the above technical solution, the central axis of the transmission shaft and the central axis of the positioning shaft are located on the same straight line.

More specifically, in the above technical solution, the head end of the transmission shaft is connected to an external part through a second coupling.

More specifically, in the above technical solution, the central axis of the transmission shaft, the central axis of the first guide post, the central axis of the second guide post, the central axis of the first plunger body, and the central axis of the second plunger body are distributed in parallel.

More specifically, in the above technical solution, a first tapered bearing is provided between the transmission shaft and the pump body.

More specifically, in the above technical solution, a second tapered bearing is provided between the positioning shaft and the pump body.

The invention has the beneficial effects that: the top shaft oil pump device for the small high-efficiency steam turbine is simple in structure and reasonable in design, the filter screen layers are respectively arranged at the oil inlet and the oil outlet of the pump body, so that the outward entering of dust or impurities is reduced, the normal and stable operation of the oil pump is guaranteed, the integral service time is prolonged, the service life is prolonged, and the top shaft oil pump device is convenient to widely popularize and use.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

The reference numbers in the drawings are: 1. a pump body; 2. a drive shaft; 3. a first sliding ramp block; 4. a second sliding swash block; 5. a first guide post; 6. a second guide post; 7. a first plunger body; 8. a second plunger body; 9. a first screen layer; 10. a second screen layer; 11. a buffer spring; 12. a first coupling; 13. positioning the shaft; 14. a compression spring; 15. a second coupling; 16. a first tapered bearing; 17. a second tapered bearing; 18. a first swash plate; 19. a second swash plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the top shaft oil pump device for the small high-efficiency steam turbine of the invention comprises a pump body 1, a transmission shaft 2 penetrates through the pump body 1, a first sliding inclined block 3, a second sliding inclined block 4, a first guide column 5, a second guide column 6, a first plunger body 7, a second plunger body 8, a first swash plate 18 and a second swash plate 19 are installed in the pump body 1, the first guide column 5 is installed at one end of the first swash plate 18, the first plunger body 7 is installed at the other end of the first swash plate 18 through the first sliding inclined block 3, the second guide column 6 is installed at one end of the second swash plate 19, the second plunger body 8 is installed at the other end of the second swash plate 19 through the second sliding inclined block 4, specifically, the first guide column 5 is installed at the right side of the bottom of the first swash plate 18, and the first plunger body 7 is installed at the left side of the bottom of the first swash plate 18. The second guide post 6 is installed at the bottom left side of the second swash plate 19, and the second plunger body 8 is installed at the bottom right side of the second swash plate 19.

The extending end of the first plunger body 7 corresponds to an oil inlet of the pump body 1, the extending end of the second plunger body 8 corresponds to an oil outlet of the pump body 1, a first filter screen layer 9 and a second filter screen layer 10 are further arranged on the pump body 1, the first filter screen layer 9 corresponds to the oil inlet and is used for filtering oil entering the oil inlet, and the second filter screen layer 10 corresponds to the oil outlet and is used for filtering oil going out from the oil outlet. Through setting up filter screen layer respectively in the oil inlet of pump body 1 and oil-out punishment, reduce the income of dust or impurity outward, the normal steady operation of guarantee oil pump improves whole live time and life.

In the initial state that no oil is fed into the oil inlet, the height of the first sliding inclined block 3 is lower than that of the second sliding inclined block 4. When oil enters the oil inlet and exits from the oil outlet, the height of the first sliding inclined block 3 is higher than that of the second sliding inclined block 4.

All the cover is equipped with buffer spring 11 on first guide post 5 and the second guide post 6, and first guide post 5 and 6 operating stability of second guide post can be guaranteed in buffer spring 11's setting, and then guarantee first plunger body 7 and 8 operating stability of second plunger body.

The afterbody of transmission shaft 2 is connected with location axle 13 through first shaft coupling 12, evenly is provided with a plurality of teeth on the circumferencial direction of first shaft coupling 12, and the cover is equipped with compression spring 14 on the location axle 13, and the job stabilization nature of location axle 13 can be guaranteed in compression spring 14's setting, and then guarantees transmission shaft 2's job stabilization nature.

The central axis of the transmission shaft 2 and the central axis of the positioning shaft 13 are positioned on the same straight line. The central axis of the transmission shaft 2, the central axis of the first guide column 5, the central axis of the second guide column 6, the central axis of the first plunger body 7 and the central axis of the second plunger body 8 are distributed in parallel. Such structural design can guarantee the operating stability of transmission shaft 2, first plunger body 7 and second plunger body 8.

The head end of the transmission shaft 2 is connected with an external part through a second coupling 15, and a plurality of teeth are uniformly arranged on the second coupling 15 in the circumferential direction.

A first inclined bearing 16 is arranged between the transmission shaft 2 and the pump body 1, and a second inclined bearing 17 is arranged between the positioning shaft 13 and the pump body 1. The arrangement of the first tapered bearing 16 and the second tapered bearing 17 can ensure the operational stability of the transmission shaft 2 and the positioning shaft 13.

This small-size high-efficient apical axis oil pump device for steam turbine's theory of operation specifically as follows:

the first plunger body 7 is contacted with the first swash plate 18 through the first sliding inclined block 3, the second plunger body 8 is contacted with the second swash plate 19 through the second sliding inclined block 4, and when the transmission shaft 2 drives the pump body 1 to rotate, the swash plate pulls out or pushes back the plunger body from the pump body 1, so that the oil sucking and discharging process is completed. The plunger body and the pump hole are formed into a working cavity, and the oil in the working cavity is respectively communicated with the oil suction cavity and the oil discharge cavity of the pump through an oil distribution disc. The variable plunger body is used to change the inclination angles of the first and second swash plates 18 and 19, and the displacement of the pump is changed by adjusting the inclination angles of the first and second swash plates 18 and 19.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.