CN216200250U

CN216200250U - Plunger pump transmission structure capable of being externally connected with power source and plunger pump

Info

Publication number: CN216200250U
Application number: CN202122532907.0U
Authority: CN
Inventors: 阮吉分
Original assignee: Taizhou Menghua Machinery Co ltd
Current assignee: Taizhou Menghua Machinery Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-05
Anticipated expiration: 2031-10-20

Abstract

The application relates to a plunger pump transmission structure capable of being externally connected with a power source and a plunger pump, comprising a shell, wherein a containing cavity is arranged in the shell, and a crankshaft is rotatably connected in the containing cavity; the casing rotates and is connected with the transmission shaft, and the transmission shaft is used for connecting the driving source in order to drive the bent axle and rotate, and the one end that the casing was kept away from to the transmission shaft is equipped with universal joint. Through setting up universal joint for the output of transmission shaft and external power supply can be certain angle installation, makes the installation of plunger pump more nimble, improves the suitability of plunger pump installation.

Description

Plunger pump transmission structure capable of being externally connected with power source and plunger pump

Technical Field

The application relates to the field of plunger pumps, in particular to a plunger pump transmission structure capable of being externally connected with a power source and a plunger pump.

Background

The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil.

Traditional plunger pump needs to use with the fixed collocation of gasoline engine, and actual plunger pump when the installation, because the power supply input shaft of plunger pump and the output shaft coaxial coupling of gasoline engine, relative position between plunger pump and the gasoline engine is relatively fixed, leads to the installation space of plunger pump to be restricted easily for the suitability of plunger pump installation is relatively poor, remains to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the suitability of plunger pump installation, the application provides a plunger pump transmission structure that can external power supply.

The application provides a but plunger pump transmission structure of external power supply adopts following technical scheme:

a plunger pump transmission structure capable of being externally connected with a power source comprises a shell, wherein an accommodating cavity is formed in the shell, and a crankshaft is rotatably connected in the accommodating cavity; the casing rotates and is connected with the transmission shaft, the transmission shaft is used for connecting the driving source and rotates in order to drive the bent axle, the one end that the casing was kept away from to the transmission shaft is equipped with universal joint.

Through above-mentioned technical scheme, set up universal joint for the output of transmission shaft and external power supply can be certain angle installation, makes the installation of plunger pump more nimble, improves the suitability of plunger pump installation.

Optionally, the transmission shaft is provided with a butting groove, the universal coupling comprises a driving fork, a driven fork and a connecting piece for connecting the driving fork and the driven fork, and the driving fork is provided with a non-circular hole for connecting an external driving source;

the driven fork is provided with a mounting hole, and one end of the transmission shaft, which is far away from the shell, is embedded into the mounting hole;

the driven fork is provided with a fastening hole, a fastening piece is connected to the fastening hole through threads, and the fastening piece is used for being embedded into the fastening groove to achieve positioning between the transmission shaft and the driven fork.

Through above-mentioned technical scheme, set up the piece that supports for the transmission shaft is more firm in the installation on driven fork, improves power transmission process's stability.

Optionally, the transmission shaft is provided with a driving gear, the shell is rotatably connected with a driven gear engaged with the driving gear, and the driven gear is connected with the crankshaft and used for driving the crankshaft to rotate.

Through above-mentioned technical scheme, set up driving gear and driven gear, through gear transmission power, reduce the direct atress of bent axle, reduce the loss to the bent axle, improve the durability of bent axle.

Optionally, the casing is equipped with the mounting groove, the tank bottom of mounting groove is equipped with the shaft hole that supplies the transmission shaft installation, the tank bottom of mounting groove still is equipped with a plurality of oil storage tanks, and a plurality of oil storage tanks circumference distribute in the outer lane in shaft hole.

Through above-mentioned technical scheme, set up the oil storage tank for lubricating oil can act on driving gear and driven gear, and then improves driven ride comfort between driving gear and the driven gear.

Optionally, the inner wall of the oil storage tank is provided with a first oil through hole, the first oil through hole is arranged close to the bottom of the oil storage tank, and adjacent oil storage tanks are communicated through the first oil through hole.

Through above-mentioned technical scheme, set up oil through hole one for intercommunication between the adjacent oil storage tank, lubricating oil can flow between the adjacent oil storage tank, improves the mobility of lubricating oil, and then make lubricating oil can be more abundant with the driving gear also driven gear contact, lubricate driving gear and driven gear, improve driven ride comfort between driving gear and the driven gear.

Optionally, the casing is equipped with the oil filler point that is used for holding the intracavity oiling, the oil filler point is equipped with the oil cap, the oil cap is used for covering the oil filler point.

Through above-mentioned technical scheme, can pour into lubricating oil into through the oil filler point for lubricating oil injection holds the chamber and supplies the crankshaft lubrication, improves the smooth and easy nature of crankshaft operation.

Optionally, the tank bottom of mounting groove is equipped with oil through hole two, the mounting groove passes through oil through hole two and holds the chamber intercommunication, the casing is equipped with the lid, the lid is equipped with the connecting hole that supplies the transmission shaft to pass through, the lid is used for closing the mounting groove.

Through above-mentioned technical scheme, set up the lid, reduce the seepage of the interior lubricating oil of mounting groove, improve holistic leakproofness.

Lubricating oil that the oil filler point was injected into still can flow into the mounting groove from holding the intracavity through oil through hole two, makes things convenient for the lubrication of driven gear and driving gear.

Optionally, a sealing sleeve is arranged in the connecting hole, and the sealing sleeve is coaxially arranged on the outer ring of the transmission shaft.

Through above-mentioned technical scheme, reduce the seepage of transmission shaft department lubricating oil, improve holistic leakproofness.

Optionally, one end of the crankshaft, which is far away from the driven gear, is connected with a connecting part, the connecting part extends out of the housing in the direction far away from the driven gear, and the connecting part is used for connecting an external driving source.

Through above-mentioned technical scheme, set up connecting portion, relatively fixed when plunger pump mounted position, perhaps when needing stronger transmission stability, the external drive source is connected to accessible connecting portion, improves the suitability of whole installation.

The application provides a plunger pump, including any above plunger pump transmission structure that can external power supply.

Through above-mentioned technical scheme, improved plunger pump unit mount's suitability.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) by arranging the universal coupling, the transmission shaft and the output end of the external power source can be installed at a certain angle, so that the plunger pump is more flexibly installed, and the installation adaptability of the plunger pump is improved;

(2) by arranging the abutting piece, the transmission shaft is more stably installed on the driven fork, and the stability of the power transmission process is improved;

(3) through setting up the oil storage tank for lubricating oil can act on driving gear and driven gear, and then improves driven ride comfort between driving gear and the driven gear.

Drawings

Fig. 1 is a schematic overall structure diagram of the present embodiment.

Fig. 2 is a schematic sectional view of the entire structure of the present embodiment.

Fig. 3 is a partial structural schematic diagram of the present embodiment.

Fig. 4 is a schematic view of the mounting groove structure of the present embodiment.

Fig. 5 is a schematic sectional view of the mounting groove structure of the present embodiment.

Fig. 6 is a schematic cross-sectional view of a part of the structure of the present embodiment, for illustrating the structure of the connection hole.

Fig. 7 is an enlarged view of a part of the structure of the present embodiment.

Fig. 8 is an exploded view of the entire structure of the present embodiment.

Fig. 9 is a schematic cross-sectional view of the whole structure of the present embodiment, which is used for showing the internal structure of the accommodating chamber.

Reference numerals: 1. a housing; 2. an accommodating chamber; 3. a crankshaft; 4. a crankshaft bore; 5. a connecting portion; 6. a driven gear; 7. mounting grooves; 8. a cover body; 9. a seal ring; 10. a drive shaft; 11. a shaft hole; 12. a second bearing; 13. a driving gear; 14. a second oil through hole; 15. an oil filler hole; 16. an oil cover; 17. an oil storage tank; 18. a first oil through hole; 19. connecting holes; 20. sealing sleeves; 21. caulking grooves; 22. a snap ring; 23. a universal coupling; 231. a driving fork; 2311. a non-circular aperture; 232. a driven fork; 2321. mounting holes; 2322. a fastening hole; 233. a connecting member; 24. abutting against the groove; 25. an abutting piece; 26. an oil storage tank; 27. a water inlet cavity; 28. a water outlet cavity; 29. a water storage cavity; 30. a water inlet; 31. a water outlet; 32. a one-way valve I; 33. a second one-way valve; 34. a piston channel; 35. a piston assembly; 351. a piston rod; 352. a piston head; 36. a first bearing.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a plunger pump transmission structure capable of being externally connected with a power source.

Referring to fig. 1 and 2, the crankshaft assembly comprises a shell 1, wherein a containing cavity 2 is formed in the shell 1, and a crankshaft 3 is arranged in the containing cavity 2; the cavity wall of holding chamber 2 has seted up bent axle hole 4, installs first bearing 36 in the bent axle hole 4, and bent axle 3 rotates through first bearing 36 to be connected in holding chamber 2. A connecting part 5 is fixed at one end of the crankshaft 3 in the length direction, and the connecting part 5 extends out of the shell 1 in the direction away from the crankshaft 3; a driven gear 6 is fixed to the other end of the crankshaft 3 in the longitudinal direction, the driven gear 6 is provided on the outer surface of the housing 1, and the driven gear 6 and the crankshaft hole 4 are coaxially provided.

Referring to fig. 2 and 3, the housing 1 has an installation groove 7 formed on an outer surface thereof for receiving the driven gear 6. The mounting groove 7 is connected with a cover body 8, a sealing ring 9 is arranged between the cover body 8 and the mounting groove 7, and the cover body 8 and the sealing ring 9 are fixed on the mounting groove 7 through bolts. The cover body 8 is used for covering the notch of the mounting groove 7.

The mounting groove 7 is provided with a transmission shaft 10. Shaft hole 11 has been seted up to the tank bottom of mounting groove 7, installs second bearing 12 in the shaft hole 11, and transmission shaft 10 rotates through second bearing 12 and connects in mounting groove 7. The transmission shaft 10 is fixed with a driving gear 13, and the driving gear 13 is meshed with the driven gear 6.

Referring to fig. 2 and 3, a second oil through hole 14 is formed in the bottom of the mounting groove 7, the second oil through hole 14 is coaxially arranged with the driven gear 6, the second oil through hole 14 is communicated with the crankshaft hole 4, and the mounting groove 7 is communicated with the accommodating cavity 2 through the second oil through hole 14. An oil filling hole 15 is formed in the outer side wall of the shell 1, the oil filling hole 15 is communicated to the accommodating cavity 2, and an oil cover 16 is connected to the oil filling hole 15 in a threaded mode. When lubricating oil is needed to be used for lubrication in the accommodating cavity 2 and the mounting groove 7, the oil cover 16 is opened, lubricating oil is injected into the oil filling hole 15, and the lubricating oil can flow into the mounting groove 7 from the accommodating cavity 2 along the second oil through hole 14.

Referring to fig. 4 and 5, a plurality of oil storage grooves 17 have been seted up to the tank bottom of mounting groove 7, and a plurality of oil storage grooves 17 circumference distributes in the outer lane of shaft hole 11, and the inner wall of oil storage groove 17 is equipped with oil through hole 18, and oil through hole 18 is close to the tank bottom setting of oil storage groove 17, and oil through hole 18 runs through to adjacent oil storage groove 17 towards the direction of adjacent oil storage groove 17, adjacent oil storage groove 17 all realizes the intercommunication through a corresponding oil through hole 18.

A plurality of oil storage grooves 26 have been seted up to the tank bottom of mounting groove 7, and a plurality of oil storage grooves 26 circumference distribute in the outer lane of two 14 of oil through holes, and the inner wall of oil storage groove 26 is equipped with the through-hole, and the through-hole is close to the tank bottom setting of oil storage groove 26, and the through-hole runs through to adjacent oil storage groove 26 towards the direction of adjacent oil storage groove 26, adjacent oil storage groove 26 all realizes the intercommunication through the through-hole that corresponds.

Referring to fig. 6 and 7, a connection hole 19 is formed in the cover body 8, one end of the transmission shaft 10, which is away from the bottom of the mounting groove 7, extends out of the cover body 8 from the connection hole 19 in the direction away from the bottom of the mounting groove 7, and the transmission shaft 10 and the connection hole 19 are coaxially arranged.

A sealing sleeve 20 is arranged in the connecting hole 19, and the sealing sleeve 20 and the transmission shaft 10 are coaxially arranged. The hole wall of the connecting hole 19 is coaxially provided with an embedded groove 21, and a snap ring 22 is coaxially arranged in the embedded groove 21. The clamping ring 22 is arranged on one side of the sealing sleeve 20, which faces away from the bottom of the mounting groove 7, and the clamping ring 22 is used for limiting the sealing sleeve 20 to be separated from the hole of the connecting hole 19.

Referring to fig. 6 and 8, a universal coupling 23 is connected to one end of the transmission shaft 10, which is far away from the bottom of the mounting groove 7. The universal joint 23 includes a driving fork 231, a driven fork 232, and a connecting member 233 rotatably connecting the driving fork 231 and the driven fork 232. The driving fork 231 is rotated relative to the driven fork 232 by a link 233. The universal joint 23 has various structures, such as cross shaft type, rzeppa type, spherical fork type, convex block type, ball pin type, ball hinge type, spherical hinge plunger type, three pin type, three fork rod type, three ball pin type, hinge rod type, etc., and in practical use, the structure of the connecting member 233 can be adjusted according to the structure of the universal joint.

The one end that the initiative fork 231 kept away from the connecting piece 233 has seted up non-circular hole 2311, and non-circular hole 2311 is the quad slit, and non-circular hole 2311 is used for connecting the outside driving source. The driven fork 232 is far away from the one end of connecting piece 233 and has seted up mounting hole 2321, and the one end embedding mounting hole 2321 that the transmission shaft 10 deviates from the mounting groove 7 tank bottom has seted up on the circumferential side wall of transmission shaft 10 embedding mounting hole 2321 one end and has supported tight groove 24. The side wall of the driven fork 232 is provided with a fastening hole 2322, the fastening hole 2322 is in threaded connection with a tightening piece 25, and the tightening piece 25 is embedded into the tightening groove 24 and tightly pressed against the groove bottom of the tightening groove 24 so as to realize the positioning between the transmission shaft 10 and the driven fork 232.

Alternatively, the non-circular hole 2311 may also be a hexagon socket.

The embodiment of the application also discloses a plunger pump, referring to fig. 9, the above-mentioned plunger pump transmission structure capable of being externally connected with a power source is applied, and a water inlet cavity 27, a water outlet cavity 28 and a water storage cavity 29 communicating the water inlet cavity 27 and the water outlet cavity 28 are arranged in the shell 1. The shell 1 is further provided with a water inlet 30 communicated with the water inlet cavity 27 and a water outlet 31 communicated with the water outlet cavity 28, wherein one end of the water inlet 30 far away from the water inlet cavity 27 is communicated with the outside of the shell 1, and one end of the water outlet 31 far away from the water outlet cavity 28 is communicated with the outside of the shell 1. Three one-way valves 32 are fixed on the wall between the water inlet cavity 27 and the water storage cavity 29, and each one-way valve 32 is communicated from the water inlet cavity 27 to the water storage cavity 29 in a one-way mode. Three one-way valves two 33 are fixed on the cavity wall between the water storage cavity 29 and the water outlet cavity 28, and each one-way valve two 33 is communicated from the water storage cavity 29 to the water storage cavity 29 in a one-way mode.

A piston channel 34 is arranged in the housing 1, and the piston channel 34 is communicated with the accommodating cavity 2 and the water storage cavity 29. A piston assembly 35 is further disposed in the housing 1, the piston assembly 35 includes a piston rod 351 and a piston head 352, one end of the piston rod 351 is hinged to the crankshaft 3, the other end of the piston rod 351 is hinged to the piston head 352, and the piston head 352 slides in the piston channel 34.

Referring to fig. 6 and 9, in the use process of the actual plunger pump, the connecting portion 5 or the universal coupling 23 is connected to an external driving source to drive the crankshaft 3 to rotate, the crankshaft 3 drives the piston rod 351 to rotate, and the piston rod 351 drives the piston head 352 to slide in the piston channel 34. When water needs to be pumped, the piston rod 351 drives the piston head 352 to slide towards the direction of the accommodating cavity 2, so that the internal spaces of the water storage cavity 29 and the piston channel 34 are increased, the air pressure is reduced, and liquid flows into the water inlet cavity 27 from the water inlet 30 and then flows into the water storage cavity 29 through the first one-way valve 32. When water needs to be drained, the piston rod 351 drives the piston head 352 to slide towards the direction away from the accommodating cavity 2, so that the internal space of the water storage cavity 29 and the piston channel 34 is reduced, the air pressure is increased, and liquid flows into the water outlet cavity 28 from the water storage cavity 29 through the second one-way valve 33 and then flows out from the water outlet 31.

The working principle of the embodiment is as follows: through setting up universal joint 23 for the output of transmission shaft 10 and external power supply can be certain angle installation, makes the installation of plunger pump more nimble, improves the suitability of plunger pump installation. When the installation space of plunger pump is comparatively abundant, or the plunger pump needs more stable connection driving source, can connect external drive source through connecting portion 5 for the suitability of plunger pump whole installation is better.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A plunger pump transmission structure capable of being externally connected with a power source comprises a shell (1), wherein an accommodating cavity (2) is formed in the shell (1), and a crankshaft (3) is rotatably connected in the accommodating cavity (2); casing (1) rotates and is connected with transmission shaft (10), transmission shaft (10) are used for connecting the driving source and rotate its characterized in that in order to drive bent axle (3): and a universal coupling (23) is arranged at one end of the transmission shaft (10) far away from the shell (1).

2. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 1, wherein: a tight-resisting groove (24) is arranged on the transmission shaft (10);

the universal coupling (23) comprises a driving fork (231), a driven fork (232) and a connecting piece (233) for connecting the driving fork (231) and the driven fork (232), wherein the driving fork (231) is provided with a non-circular hole (2311) for connecting an external driving source;

the driven fork (232) is provided with a mounting hole (2321), and one end, far away from the shell (1), of the transmission shaft (10) is embedded into the mounting hole (2321);

the driven fork (232) is provided with a fastening hole (2322), a fastening piece (25) is connected to the fastening hole (2322) in a threaded mode, and the fastening piece (25) is used for being embedded into the fastening groove (24) to achieve positioning between the transmission shaft (10) and the driven fork (232).

3. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 1, wherein: the transmission shaft (10) is provided with a driving gear (13), the shell (1) is rotatably connected with a driven gear (6) meshed with the driving gear (13), and the driven gear (6) is connected with the crankshaft (3) and used for driving the crankshaft (3) to rotate.

4. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 3, wherein: casing (1) is equipped with mounting groove (7), the tank bottom of mounting groove (7) is equipped with shaft hole (11) that supply transmission shaft (10) to install, the tank bottom of mounting groove (7) still is equipped with a plurality of oil storage tanks (17), and a plurality of oil storage tanks (17) circumference distribute in the outer lane of shaft hole (11).

5. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 4, wherein: the inner wall of the oil storage tank (17) is provided with a first oil through hole (18), the first oil through hole (18) is arranged close to the bottom of the oil storage tank (17), and the adjacent oil storage tanks (17) are communicated through the first oil through hole (18).

6. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 4, wherein: the shell (1) is provided with an oil filling hole (15) used for filling oil into the accommodating cavity (2), the oil filling hole (15) is provided with an oil cover (16), and the oil cover (16) is used for covering the oil filling hole (15).

7. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 4, wherein: the tank bottom of mounting groove (7) is equipped with through oil hole two (14), mounting groove (7) through oil hole two (14) with hold chamber (2) intercommunication, casing (1) is equipped with lid (8), lid (8) are equipped with connecting hole (19) that supply transmission shaft (10) to pass through, lid (8) are used for closing mounting groove (7).

8. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 7, wherein: a sealing sleeve (20) is arranged in the connecting hole (19), and the sealing sleeve (20) is coaxially arranged on the outer ring of the transmission shaft (10).

9. The plunger pump transmission structure capable of externally connecting with a power source as claimed in claim 3, wherein: the one end that driven gear (6) were kept away from in bent axle (3) is connected with connecting portion (5), and connecting portion (5) stretches out outside casing (1) towards the direction of keeping away from driven gear (6), connecting portion (5) are used for connecting external drive source.

10. A plunger pump, characterized by: a plunger pump drive arrangement comprising an external power source as claimed in any one of claims 1 to 9.