CN210013789U

CN210013789U - Single-cylinder plunger pump

Info

Publication number: CN210013789U
Application number: CN201920378625.XU
Authority: CN
Inventors: 蒋润
Original assignee: Wuhu Southwest Machinery Co Ltd
Current assignee: Wuhu Southwest Machinery Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-02-04
Anticipated expiration: 2029-03-25

Abstract

The utility model discloses a single-cylinder plunger pump, which comprises a shell, a driving shaft, a crank disc, a swivel, a connecting rod, a guide cylinder, a sliding column, a push rod, a sliding bearing, a pump body, a plunger sleeve, a plunger, a connecting column, a connecting device, an oil outlet valve and an oil inlet valve, wherein the inner wall of the shell is connected with the driving shaft through the rotation of the bearing, the middle part of the driving shaft is fixed with the crank disc, the outer side of the crank disc is connected with the swivel through the rotation of the bearing, one side of the swivel is welded with the connecting rod, one side of the inner wall of the shell is fixed with the guide cylinder, the inner wall of the guide cylinder is connected with the sliding column in a sliding way, one end of the connecting rod far away from the swivel is hinged with one end of the sliding column close to the swivel through a hinge, one end of the sliding column far, the single-cylinder plunger pump is convenient for installing the plunger, is stable in connection, prevents the plunger from loosening and is convenient for people to use.

Description

Single-cylinder plunger pump

Technical Field

The utility model relates to a plunger pump technical field specifically is a single cylinder 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. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and mainly comprises an eccentric wheel, a plunger, a spring, a cylinder body and two one-way valves. And a closed volume is formed between the plunger and the cylinder body hole. The eccentric wheel rotates one time, the plunger reciprocates up and down once, moves downwards to absorb oil, and moves upwards to discharge oil. The volume of oil discharged by one rotation of the pump is called displacement, and the displacement is only related to the structural parameters of the pump;

most of the plungers of the existing single-cylinder plunger pumps are fixed with push rods through bolts, so that the installation is very inconvenient;

and the loosening of the bolt after long-term use can easily lead to the loosening of the plunger. To this end, we propose a single cylinder plunger pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single cylinder plunger pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a single-cylinder plunger pump comprises a shell, a driving shaft, a crank disc, a rotating ring, a connecting rod, a guide cylinder, a sliding column, a push rod, a sliding bearing, a pump body, a plunger sleeve, a plunger, a connecting column, a connecting device, an oil outlet valve and an oil inlet valve, wherein the inner wall of the shell is connected with the driving shaft through the rotation of a bearing, the middle part of the driving shaft is fixed with the crank disc, the outer side of the crank disc is connected with the rotating ring through the rotation of the bearing, one side of the rotating ring is welded with the connecting rod, one side of the inner wall of the shell is fixed with the guide cylinder, the inner wall of the guide cylinder is connected with the sliding column in a sliding way, one end, far away from the rotating ring, of the connecting rod is hinged with one end, close to the rotating ring, of the sliding column is fixed with the push rod, one side, close to, the plunger sleeve is fixed to one end, close to the shell, of the inner wall of the pump body, a plunger is connected to the inner wall of the plunger sleeve in a sliding mode, a connecting column is fixed to the middle of the plunger through bolts, one end of a push rod penetrates through a sliding bearing and is fixedly connected with the connecting column through a connecting device, an oil outlet valve is fixed to the upper end of the inner wall of the pump body, and an oil inlet valve is fixed to the lower end of the inner.

Preferably, the connecting device comprises a connector, a connecting groove, a chute, a slider, a threaded column, a hexagonal cap, a telescopic rod and a spring, wherein the connector is fixed at one end of the push rod close to the connecting column, the connecting groove is formed in one side of the connector close to the connecting column, the connecting column is spliced with the connecting groove, the chutes are symmetrically formed in the inner wall of the connecting groove, the slider is slidably connected with the inner wall of the chute, threads are formed in the upper end of the inner wall of the chute, the threaded column is in threaded connection with the upper end of the inner wall of the chute, the lower surface of the threaded column is in a groove arrangement, the hexagonal cap is welded at the top of the threaded column through the chute, the telescopic rod is welded at the top of the inner wall of the threaded column, one end of the telescopic rod, the connector is close to the one end symmetry of slider and has seted up the spacing groove, and slider and spacing groove joint.

Preferably, the bottom of the shell is symmetrically fixed with mounting feet.

Preferably, one end of the sliding block, which is close to the limiting groove, is arranged in an inclined plane.

Preferably, the upper end of the outer side of the threaded column is sleeved with a gasket.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the utility model is used, the driving shaft is rotated to drive the crank disc to rotate, and further the rotating ring on the crank disc is displaced, the rotating ring drives the sliding column to do reciprocating motion in the guide cylinder through the connecting rod, and further drives the push rod to do reciprocating motion, and further drives the plunger to do reciprocating motion in the plunger sleeve, so that the plunger does work in the pump body, when the plunger is pushed forwards, the oil liquid in the pump body is compressed, so that the oil liquid is discharged through the oil outlet valve, when the plunger is retracted backwards, the oil outlet valve is closed, negative pressure is formed in the pump body, the oil inlet valve is opened, the oil liquid is sucked into the pump body and is reciprocated in sequence, so that liquid suction and liquid discharge are realized, when the plunger is installed, the connecting column on the plunger is inserted into the connecting groove, one end of the connecting groove inserted into the connecting groove is in a square shape, is matched with the connecting groove in a square shape, and is, and then make the slider slide into the spout, continue to promote the spliced pole this moment, when the spacing groove on the spliced pole coincides with the spout, the slider slides into the spacing groove under the effect of spring, carry on spacingly to the spliced pole, accomplish the installation of plunger, when dismantling the plunger, twist and move the hexagonal cap, and then make the screw thread post rotate, make the screw thread post roll-off spout, and then can extract the slider from the spout, remove the spacing to the spliced pole, accomplish the dismantlement, the installation of the plunger of being convenient for of this device, people of being convenient for use.

2. The utility model discloses when vibrations lead to the screw thread post not hard up for a long time, the elasticity of spring promotes the slider, gives a power of slider, makes the slider still block at the spacing inslot, carries on spacingly to the spliced pole, and then can prevent when the screw thread post is not hard up, not hard up phenomenon appears in the plunger, and the people of being convenient for use.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 2 is a schematic view of the sectional structure of the connecting device of the present invention.

In the figure: 1. a housing; 2. a drive shaft; 3. a crank disk; 4. rotating the ring; 5. a connecting rod; 6. a guide cylinder; 7. a traveler; 8. a push rod; 9. a sliding bearing; 10. a pump body; 11. a plunger sleeve; 12. a plunger; 13. connecting columns; 14. a connecting device; 15. an oil outlet valve; 16. an oil inlet valve; 17. a connector; 18. connecting grooves; 19. a chute; 20. a slider; 21. a threaded post; 22. a hexagonal cap; 23. a telescopic rod; 24. a spring; 25. a limiting groove; 26. mounting a foot; 27. and (7) a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a single-cylinder plunger pump comprises a shell 1, a driving shaft 2, a crank disc 3, a rotating ring 4, a connecting rod 5, a guide cylinder 6, a sliding column 7, a push rod 8, a sliding bearing 9, a pump body 10, a plunger sleeve 11, a plunger 12, a connecting column 13, a connecting device 14, an oil outlet valve 15 and an oil inlet valve 16, wherein the inner wall of the shell 1 is rotatably connected with the driving shaft 2 through a bearing, the crank disc 3 is fixed in the middle of the driving shaft 2, the outer side of the crank disc 3 is rotatably connected with the rotating ring 4 through the bearing, the connecting rod 5 is welded on one side of the rotating ring 4, the guide cylinder 6 is fixed on one side of the inner wall of the shell 1, the sliding column 7 is slidably connected with the inner wall of the guide cylinder 6, one end, far away from the rotating ring 4, of the connecting rod 5 is hinged with one end, close to the rotating ring 4, of the sliding column 7, far away from the, and the push rod 8 is connected with the inner wall of the sliding bearing 9 in a sliding manner, one side of the outer wall of the shell 1 close to the sliding bearing 9 is fixed with a pump body 10 through a bolt, one end of the inner wall of the pump body 10 close to the shell 1 is fixed with a plunger sleeve 11, the inner wall of the plunger sleeve 11 is connected with a plunger 12 in a sliding manner, the middle part of the plunger 12 is fixed with a connecting column 13 through a bolt, one end of the push rod 8 penetrates through the sliding bearing 9 and is fixedly connected with the connecting column 13 through a connecting device 14, the upper end of the inner wall of the pump body 10 is fixed with an oil outlet valve 15, the lower end of the inner wall of the pump body 10 is fixed with an oil inlet valve 16, when in use, the drive shaft 2 is rotated to drive the crank disc 3 to rotate, so as to displace the rotating ring 4 on the crank disc 3, the rotating ring 4 drives, the plunger 12 is driven to work in the pump body 10, when the plunger 12 is pushed forwards, the oil liquid in the pump body 10 is compressed, the oil liquid is discharged through the oil outlet valve 15, when the plunger 12 is retracted backwards, the oil outlet valve 15 is closed, negative pressure is formed in the pump body 10, the oil inlet valve 16 is opened, the oil liquid is sucked into the pump body 10, and the liquid suction and the liquid discharge are achieved in a reciprocating mode.

In some embodiments, the connecting device 14 includes a connector 17, a connecting groove 18, a sliding groove 19, a sliding block 20, a threaded post 21, a hexagonal cap 22, a telescopic rod 23 and a spring 24, the connector 17 is fixed at one end of the push rod 8 close to the connecting post 13, the connecting groove 18 is opened at one side of the connector 17 close to the connecting post 13, the connecting post 13 is inserted into the connecting groove 18, the sliding groove 19 is symmetrically opened on the inner wall of the connecting groove 18, the sliding block 20 is slidably connected to the inner wall of the sliding groove 19, the upper end of the inner wall of the sliding groove 19 is opened with a thread post 21, the lower surface of the thread post 21 is in a groove arrangement, the hexagonal cap 22 is welded on the top of the threaded post 21 through the sliding groove 19, the telescopic rod 23 is welded on the top of the inner wall of the threaded post 21, one end of the telescopic rod, one end of the spring 24 is fixedly connected with the inner wall of the threaded column 21, the other end of the spring 24 is fixedly connected with the sliding block 20, one end of the connecting head 17, which is close to the sliding block 20, is symmetrically provided with a limiting groove 25, the sliding block 20 is clamped with the limiting groove 25, when the plunger 12 is installed, the connecting column 13 on the plunger 12 is inserted into the connecting groove 18, one end of the connecting column 13, which is inserted into the connecting groove 18, is in a cube arrangement and is matched with the connecting groove 18 in a cube shape, so that the positioning of the connecting column 13 is convenient, when the connecting column 13 slides into the connecting groove 18, the connecting column 13 extrudes the inclined plane of the sliding block 20, so that the sliding block 20 slides into the sliding groove 19, at the moment, the connecting column 13 is continuously pushed, when the limiting groove 25 on the connecting column 13 is overlapped with the sliding groove 19, the sliding block 20 slides into the limiting groove 25 under the, and then the threaded column 21 is rotated, the threaded column 21 slides out of the sliding groove 19, and the sliding block 20 can be pulled out of the sliding groove 19, so that the limit of the connecting column 13 is released, and the disassembly is completed.

In some embodiments, the bottom of the housing 1 is symmetrically fixed with mounting feet 26 to facilitate the mounting of the housing 1.

In some embodiments, the end of the sliding block 20 near the limiting groove 25 is inclined to facilitate the sliding of the sliding block 20 into the sliding groove 19.

In some embodiments, the threaded post 21 is capped with a washer 27 to prevent the threaded post 21 from loosening.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a single cylinder plunger pump, includes casing (1), drive shaft (2), crank disc (3), swivel (4), connecting rod (5), guide cylinder (6), traveller (7), push rod (8), slide bearing (9), the pump body (10), plunger bushing (11), plunger (12), spliced pole (13), connecting device (14), delivery valve (15) and inlet valve (16), its characterized in that: the inner wall of the shell (1) is rotatably connected with a driving shaft (2) through a bearing, the middle part of the driving shaft (2) is fixed with a crank disc (3), the outer side of the crank disc (3) is rotatably connected with a rotating ring (4) through a bearing, one side of the rotating ring (4) is welded with a connecting rod (5), one side of the inner wall of the shell (1) is fixed with a guide cylinder (6), the inner wall of the guide cylinder (6) is slidably connected with a sliding column (7), one end, far away from the rotating ring (4), of the connecting rod (5) of the connecting rod (7) is hinged with one end, close to the rotating ring (4), of the sliding column (5) through a hinge, one end, far away from the connecting rod (5), of the sliding column (7) is fixed with a push rod (8), one side, close to the guide cylinder (6), of the shell (1) is embedded and fixed with a sliding bearing (9), the push rod (8) is, one end of the inner wall of the pump body (10) close to the shell (1) is fixed with a plunger sleeve (11), the inner wall of the plunger sleeve (11) is connected with a plunger (12) in a sliding manner, the middle part of the plunger (12) is fixed with a connecting column (13) through a bolt, one end of a push rod (8) penetrates through a sliding bearing (9) and is fixedly connected with the connecting column (13) through a connecting device (14), an oil outlet valve (15) is fixed at the upper end of the inner wall of the pump body (10), and an oil inlet valve (16) is fixed at the lower end of the inner wall.

2. A single cylinder plunger pump according to claim 1, characterized in that: the connecting device (14) comprises a connector (17), a connecting groove (18), a sliding groove (19), a sliding block (20), a threaded column (21), a hexagonal cap (22), a telescopic rod (23) and a spring (24), wherein the connector (17) is fixed at one end, close to the connecting column (13), of the push rod (8), the connecting groove (18) is formed in one side, close to the connecting column (13), of the connector (17), the connecting column (13) is spliced with the connecting groove (18), the sliding groove (19) is symmetrically formed in the inner wall of the connecting groove (18), the sliding block (20) is connected to the inner wall of the sliding groove (19) in a sliding mode, threads are formed in the upper end of the inner wall of the sliding groove (19), the threaded column (21) is connected to the upper end of the inner wall of the sliding groove (19) in a threaded mode, the lower surface of the threaded, threaded post (21) inner wall top welding has telescopic link (23), and telescopic link (23) keep away from the one end and the slider (20) welding of threaded post (21), telescopic link (23) outside cover is equipped with spring (24), spring (24) one end and threaded post (21) inner wall fixed connection, and the spring (24) other end and slider (20) fixed connection, spacing groove (25) have been seted up to the one end symmetry that connector (17) are close to slider (20), and slider (20) and spacing groove (25) joint.

3. A single cylinder plunger pump according to claim 1, characterized in that: the bottom of the shell (1) is symmetrically fixed with mounting feet (26).

4. A single cylinder plunger pump according to claim 2, characterized in that: one end of the sliding block (20) close to the limiting groove (25) is arranged in an inclined plane.

5. A single cylinder plunger pump according to claim 2, characterized in that: and a gasket (27) is sleeved at the upper end of the outer side of the threaded column (21).