CN215890436U

CN215890436U - Anti-drop's plunger pump cylinder body

Info

Publication number: CN215890436U
Application number: CN202122097792.7U
Authority: CN
Inventors: 吴晓伟
Original assignee: Wuxi Fengyun Machinery Manufacturing Co ltd
Current assignee: Wuxi Fengyun Machinery Manufacturing Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-22
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses an anti-drop plunger pump cylinder body, which relates to the technical field of plunger pump accessories and aims at solving the problem that when an existing plunger pump is used, a copper bush in the plunger pump cylinder body is easy to drop from plunger holes, so that the inner wall of the cylinder body is damaged, and the normal work of the plunger pump is influenced. The utility model can prevent the plunger rod from falling off, can also prevent the transmission shaft from falling off, and improves the stability of the plunger pump cylinder body.

Description

Anti-drop's plunger pump cylinder body

Technical Field

The utility model relates to the technical field of plunger pump accessories, in particular to an anti-falling plunger pump cylinder body.

Background

The plunger pump is an important device of a hydraulic system, changes the volume of a sealed working cavity to absorb and press oil by means of reciprocating motion of a plunger in a cylinder body, and has the advantages of high rated pressure, compact structure, high efficiency, convenience in flow regulation and the like.

When the existing plunger pump is used, a copper bush in a plunger pump cylinder body is easy to fall off from a plunger hole, so that the inner wall of the cylinder body is damaged, and the normal work of the plunger pump is influenced. Therefore, in order to solve such problems, we propose a drop-proof plunger pump cylinder.

SUMMERY OF THE UTILITY MODEL

The anti-falling plunger pump cylinder provided by the utility model solves the problem that when the existing plunger pump is used, a copper bush in the plunger pump cylinder is easy to fall off from a plunger hole, so that the inner wall of the cylinder is damaged, and the normal work of the plunger pump is influenced.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an anti-drop plunger pump cylinder body comprises a cylinder body, wherein a plurality of plunger holes which are arranged in a penetrating mode are formed in the cylinder body, the plunger holes are located on the cylinder body and distributed in an annular array mode, plunger rods are movably installed in the plunger holes and consist of connecting balls, connecting rods and movable rods, spiral grooves are formed in the plunger holes, copper layers are sintered in the spiral grooves, limiting rings are fixedly installed at the top ends of the plunger holes, copper blocks and copper rings are fixedly installed in the plunger holes, the copper rings are fixedly connected with the limiting rings, the copper blocks are fixedly installed at the top ends of the copper rings, graphite is coated on the surfaces of the copper rings, rectifying rings are fixedly installed at the bottom ends of the plunger holes, and the inner walls of the rectifying rings are arranged in a streamline mode;

run through on the cylinder body and be provided with the transmission shaft, the transmission shaft comprises first pivot, second pivot and third pivot, the bottom fixed mounting of first pivot has the second pivot, the bottom fixed mounting of second pivot has the third pivot, the movable sleeve is equipped with the activity ring in the first pivot.

Preferably, the radius of connecting rod and the internal diameter of spacing ring match, the radius of movable rod is greater than the radius of connecting rod, just it sets up to be active relation between movable rod and the copper ring.

Preferably, the radius of the first rotating shaft is the same as that of the third rotating shaft, the radius of the second rotating shaft is larger than that of the first rotating shaft, and a rotating groove matched with the second rotating shaft is formed in the cylinder body.

Preferably, the cylinder body is provided with a movable groove matched with the movable ring, the movable groove is internally provided with threads, the movable ring is in threaded connection with the movable groove, and a sealing ring is movably arranged between the movable ring and the movable groove of the cylinder body.

Preferably, the circumference outer wall fixed mounting of third pivot has a plurality of stoppers that are the annular array and distribute, be provided with a plurality ofly on the cylinder body the spacing groove that the stopper matches.

The utility model has the beneficial effects that:

1. through setting up copper billet, copper ring and copper layer, scribble graphite through at the copper ring inner wall, can reduce frictional force between plunger rod and the copper ring to reduced the copper ring by the downthehole possibility that drops of plunger, through being the heliciform setting with the copper layer, and be provided with the helicla flute that matches with the copper layer in the cylinder body, strengthened the compactness between copper billet, copper ring, copper layer and the plunger hole, reached the effect that prevents dropping of copper ring.

2. Through setting up axis of rotation, loose ring, sealing ring and stopper, the screw thread connects soon between loose ring and the cylinder body, and is provided with the sealing ring between loose piece and the cylinder body, can enough prevent that the transmission shaft from droing, can also let and seal between transmission shaft and the cylinder body, again through set up the stopper in the third pivot, interlock in stopper and the cylinder body, when having reached the drive transmission shaft, can drive cylinder body pivoted effect.

In conclusion, the plunger rod can be prevented from falling off, the transmission shaft can be prevented from falling off, the problems that the inner wall of the cylinder body is damaged and the normal work of the plunger pump is influenced due to the fact that the copper bush in the cylinder body of the plunger pump is easy to fall off from the plunger hole when the existing plunger pump is used are solved, and the plunger pump is suitable for popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is an exploded view of the installation structure of the plunger rod and the driving shaft of the present invention.

Reference numbers in the figures: 1. a cylinder body; 2. a plunger rod; 21. a connecting ball; 22. a connecting rod; 23. a movable rod; 3. a drive shaft; 31. a first rotating shaft; 32. a second rotating shaft; 33. a third rotating shaft; 4. a movable ring; 5. a limiting ring; 6. a copper block; 7. a copper layer; 8. a limiting block; 9. a seal ring; 10. a copper ring; 11. a rectifying ring; 12. a plunger bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an anti-drop plunger pump cylinder comprises a cylinder body 1, a plurality of plunger holes 12 arranged on the cylinder body 1 in a penetrating way, the plunger holes 12 are positioned on the cylinder body 1 and distributed in an annular array, the plunger rods 2 are movably arranged in the plunger holes 12, each plunger rod 2 consists of a connecting ball 21, a connecting rod 22 and a movable rod 23, a spiral groove is arranged in each plunger hole 12, a copper layer 7 is sintered in the spiral groove, a limiting ring 5 is fixedly arranged at the top end of the plunger hole 12, a copper block 6 and a copper ring 10 are fixedly arranged in the plunger hole 12, the copper ring 10 is fixedly connected with the limiting ring 5, the copper block 6 is fixedly arranged at the top end of the copper ring 10, the surface of the copper ring 10 is coated with graphite, so that the lubrication degree between the plunger rod 2 and the copper ring 10 can be improved, the possibility of falling of the copper ring 10 is reduced, and the rectifying ring 11 is fixedly mounted at the bottom end of the plunger hole 12.

Referring to fig. 2, a transmission shaft 3 penetrates through the cylinder body 1, the transmission shaft 3 is composed of a first rotating shaft 31, a second rotating shaft 32 and a third rotating shaft 33, the second rotating shaft 32 is fixedly mounted at the bottom end of the first rotating shaft 31, the third rotating shaft 33 is fixedly mounted at the bottom end of the second rotating shaft 32, and a movable ring 4 is movably sleeved on the first rotating shaft 31.

Referring to fig. 2-3, by matching the radius of the connecting rod 22 with the inner diameter of the limiting ring 5, the radius of the movable rod 23 is greater than the radius of the connecting rod 22, when the plunger rod 2 moves, the movable rod 23 can move in the copper ring 10 under the limitation of the limiting ring 5, and the movable rod 23 and the copper ring 10 are arranged in a movable relationship, by making the radius of the first rotating shaft 31 and the radius of the third rotating shaft 33 the same, and the radius of the second rotating shaft 32 greater than the radius of the first rotating shaft 31, so as to prevent the driving shaft 3 from falling off, a rotating groove matched with the second rotating shaft 32 is arranged in the cylinder body 1, and by making the inner wall of the rectifying ring 11 in a streamline shape, the pressure distribution of the hydraulic medium is uniform, the flow loss is small, a movable groove matched with the movable ring 4 is arranged on the cylinder body 1, and a thread is arranged in the movable groove, the movable ring 4 is screwed with the movable groove, and a sealing ring 9 is movably arranged between the movable ring 4 and the movable groove of the cylinder body 1, a plurality of limiting blocks 8 distributed in an annular array are fixedly mounted on the outer wall of the circumference of the third rotating shaft 33, and a plurality of limiting grooves matched with the limiting blocks 8 are formed in the cylinder body 1.

The working principle is as follows: when the device is installed, set up copper billet 6 in cylinder body 1 earlier, copper ring 10, copper layer 7, through scribbling graphite at copper ring 10 inner wall, can reduce frictional force between plunger rod 2 and copper ring 10, thereby the possibility that copper ring 10 drops by in the plunger hole 12 has been reduced, through being the heliciform setting with copper layer 7, and be provided with the helicla flute that matches with copper layer 7 in the cylinder body 1, copper billet 6 has been strengthened, copper ring 10, the compactness between copper layer 7 and the plunger hole 12, place plunger rod 2 in plunger hole 12 again, with spacing ring 5 and the flush welding in plunger hole 12 top, run through cylinder body 1 with transmission shaft 3, will rotate movable ring 4, movable ring 4 precession in cylinder body 1, compress tightly sealing ring 9, realize sealing between transmission shaft 3 and the cylinder body 1, and can carry out spacing to transmission shaft 3.

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 equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An anti-drop plunger pump cylinder body comprises a cylinder body (1) and is characterized in that a plurality of plunger holes (12) which are arranged in a penetrating mode are formed in the cylinder body (1), the plunger holes (12) are located on the cylinder body (1) and distributed in an annular array mode, plunger rods (2) are movably mounted in the plunger holes (12), each plunger rod (2) is composed of a connecting ball (21), a connecting rod (22) and a movable rod (23), a spiral groove is formed in each plunger hole (12), a copper layer (7) is sintered in each spiral groove, a limiting ring (5) is fixedly mounted at the top end of each plunger hole (12), a copper block (6) and a copper ring (10) are fixedly mounted in each plunger hole (12), each copper ring (10) is fixedly connected with each limiting ring (5), each copper block (6) is fixedly mounted at the top end of each copper ring (10), the surface of the copper ring (10) is coated with graphite, a rectifying ring (11) is fixedly mounted at the bottom end of the plunger hole (12), and the inner wall of the rectifying ring (11) is arranged in a streamline manner;

run through on cylinder body (1) and be provided with transmission shaft (3), transmission shaft (3) comprise first pivot (31), second pivot (32) and third pivot (33), the bottom fixed mounting of first pivot (31) has second pivot (32), the bottom fixed mounting of second pivot (32) has third pivot (33), the cover that moves about is equipped with activity ring (4) on first pivot (31).

2. An anti-drop plunger pump cylinder body as claimed in claim 1, characterized in that the radius of the connecting rod (22) matches the inner diameter of the limit ring (5), the radius of the movable rod (23) is larger than the radius of the connecting rod (22), and the movable rod (23) and the copper ring (10) are arranged in a movable relationship.

3. A drop-proof plunger pump cylinder as claimed in claim 1, wherein the radius of the first rotating shaft (31) is the same as that of the third rotating shaft (33), the radius of the second rotating shaft (32) is larger than that of the first rotating shaft (31), and a rotating groove matched with the second rotating shaft (32) is arranged in the cylinder body (1).

4. An anti-drop plunger pump cylinder body as claimed in claim 1, characterized in that the cylinder body (1) is provided with a movable groove matched with the movable ring (4), the movable groove is internally provided with a thread, the movable ring (4) is screwed with the movable groove, and a sealing ring (9) is movably arranged between the movable ring (4) and the movable groove of the cylinder body (1).

5. The anti-drop plunger pump cylinder body as claimed in claim 1, wherein a plurality of limiting blocks (8) distributed in an annular array are fixedly installed on the circumferential outer wall of the third rotating shaft (33), and a plurality of limiting grooves matched with the limiting blocks (8) are formed in the cylinder body (1).