CN109838358B - Improved structure of plunger pump for water mist sand blasting machine - Google Patents
Improved structure of plunger pump for water mist sand blasting machine Download PDFInfo
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- CN109838358B CN109838358B CN201910197506.9A CN201910197506A CN109838358B CN 109838358 B CN109838358 B CN 109838358B CN 201910197506 A CN201910197506 A CN 201910197506A CN 109838358 B CN109838358 B CN 109838358B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000005488 sandblasting Methods 0.000 title claims abstract description 27
- 239000003595 mist Substances 0.000 title claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of plunger pumps, and discloses an improved plunger pump structure for a water mist sand blasting machine, which comprises a reversing component and a plunger pump component which are respectively and independently assembled, wherein the reversing component and the plunger pump component are arranged and butted according to the upper and lower positions, the reversing component comprises a shell component and a reciprocating rod component which is arranged on the shell component and can perform up-and-down reversing movement, the plunger pump component comprises a pump body component and a plunger component which is arranged on the pump body component and can move up and down, the reciprocating rod component is coaxially butted with the plunger component, and the shell component is fixedly connected with the pump body component through a plurality of connecting studs; wherein the reversing component is provided with a cylinder body and a pneumatic piston. The invention solves the defects that the maintenance of the conventional plunger pump is inconvenient, and the reversing component of the conventional plunger pump is easy to frost in winter to influence the power.
Description
Technical Field
The invention relates to the technical field of plunger pumps, in particular to an improved structure of a plunger pump for a water mist sand blasting machine.
Background
In the prior art, a conventional plunger pump is generally adopted as a pressurized water conveying device for a water mist sand blasting machine. The conventional plunger pump is inconvenient to disassemble and maintain due to the structural problem, and reversing parts of the conventional plunger pump are easy to frost in winter to influence power, so that the reliability of the conventional plunger pump is reduced. In addition, the conventional plunger pump is relatively large in pump pressure, and cannot form optimal matching when the conventional plunger pump is matched with a water mist sand blasting machine, so that the water mist sand blasting effect is affected.
Therefore, it is necessary to reasonably optimize the compression ratio and the flow rate according to the characteristics of water mist sand blasting and combining the range of the mixing ratio of the water mist sand blasting media and the working pressure range, and improve the structure of the existing plunger pump.
Disclosure of Invention
In order to solve the problems, the invention provides an improved structure of a plunger pump for a water mist sand blasting machine, and aims to solve the defects that the conventional plunger pump is inconvenient to maintain and reversing parts of the conventional plunger pump are easy to frost in winter to influence power. The specific technical scheme is as follows:
the utility model provides a water smoke sand blasting machine's plunger pump improves structure, includes reversing component and plunger pump part that independent assembled respectively, reversing component and plunger pump part arrange and dock according to upper and lower position, reversing component includes the casing subassembly and sets up the reciprocating lever subassembly that can reciprocate on the casing subassembly, the plunger pump part includes the pump body subassembly and sets up the plunger subassembly that can reciprocate on the pump body subassembly, the reciprocating lever subassembly with the coaxial butt joint of plunger subassembly, the casing subassembly with through a plurality of connecting stud fixed connection between the pump body subassembly; wherein the reversing component is provided with a cylinder body and a pneumatic piston.
According to the technical scheme, the reversing component and the plunger pump component are arranged to be separate components which are assembled independently to form a modularized structure, so that the assembly and maintenance are simplified, and the problem that the reversing component affects power due to frosting in winter can be effectively solved compared with a traditional integrated plunger pump structure because the reversing component is provided with the cylinder body and the pneumatic piston.
The specific structure of the shell component in the invention is as follows: the shell assembly comprises a cylinder body, an upper cylinder cover is arranged at the upper end of the cylinder body, a lower cylinder cover is arranged at the lower end of the cylinder body, the reciprocating rod assembly comprises a pneumatic piston arranged in the cylinder body and a piston rod connected in an inner hole of the pneumatic piston, the lower cylinder cover is fixedly connected with the pump body assembly through a connecting stud, and the piston rod penetrates through the lower cylinder cover and is in coaxial butt joint with the plunger assembly.
The reversing component and the plunger pump component are connected through the connecting stud, so that the structure is convenient and quick to assemble and convenient to maintain.
The specific structure of the reversing component in the invention is as follows: the reversing component comprises an air distribution chamber arranged at the upper end of the upper cover of the air cylinder and a reversing rod connected between the air distribution chamber and the piston rod, wherein the air distribution chamber comprises an upper reversing chamber, an air inlet chamber and a lower reversing chamber which are sequentially arranged from top to bottom and are mutually separated, the air inlet chamber is connected with an air inlet pipe, the upper reversing chamber is provided with a passage communicated with an upper cavity of the air cylinder body, the lower reversing chamber is provided with a passage communicated with a lower cavity of the air cylinder body, the reversing rod is provided with a movable reversing valve module used for communicating the air inlet chamber with the upper reversing chamber or communicating the air inlet chamber with the lower reversing chamber, the upper end of the piston rod is provided with an axial mounting hole, the lower end of the reversing rod is sequentially connected with a seat ring, a spring and a movable ring from bottom to top, the reversing rod, the seat ring, the spring and the movable ring are together inserted into the axial mounting hole, and the seat ring are respectively in sliding fit with the axial mounting hole.
Preferably, a sliding matching surface is arranged between the air inlet chamber and the movable reversing valve module, the upper reversing chamber, the air inlet chamber and the lower reversing chamber are respectively provided with an orifice on the sliding matching surface, the air inlet chamber of the movable reversing valve module is communicated with the upper reversing chamber after the movable reversing valve module moves upwards, and the air inlet chamber of the movable reversing valve module is communicated with the lower reversing chamber after the movable reversing valve module moves downwards.
Preferably, the movable reversing valve module comprises a sliding block seat arranged on the upper part of the reversing rod, and sliding blocks which are respectively arranged on the left side surface and the right side surface of the sliding block seat and can move left and right, the sliding blocks are tightly propped against the sliding matching surface through springs, and reversing holes are formed in the sliding blocks.
Preferably, arc convex strips horizontally arranged are arranged at the front and rear parts of the sliding block seat, and a roller shaft which is tightly pressed against the cam surface on the arc convex strips on the sliding block seat through a spring level is arranged at the upper end of the cylinder upper cover in the direction of the arc convex strips so as to control reversing.
The working principle of the mobile reversing valve module for realizing automatic reversing operation in the invention is as follows: when the reversing valve works, compressed air is communicated with the upper reversing chamber, and the compressed air in the air inlet chamber enters the upper reversing chamber; because the upper reversing chamber is provided with a passage communicated with the upper cavity of the cylinder body, compressed air in the upper reversing chamber enters the upper cavity of the cylinder body to push the pneumatic piston and the piston rod to move downwards together, so as to drive the plunger assembly coaxially butted with the piston rod to move downwards; when the pneumatic piston moves downwards to the limit position, the pneumatic piston stops moving, at the moment, the pressure of the compressed air in the upper cavity of the cylinder body is gradually increased, the compressed air after the pressure increase pushes the movable ring on the reversing rod to move downwards, the pressure applied by the compressed air to the movable ring is transmitted to the seat ring through the spring, and when the pressure of the compressed air is increased to a set pressure value, the seat ring drives the reversing rod to move downwards, and the movable reversing valve module at the upper end of the reversing rod moves downwards; meanwhile, reversing is realized after the movable reversing valve module moves downwards, so that the air inlet chamber is communicated with the lower reversing chamber, compressed air in the air inlet chamber enters the lower reversing chamber, and as the lower reversing chamber is provided with a passage communicated with the lower cavity of the cylinder body, the compressed air in the lower reversing chamber enters the lower cavity of the cylinder body to push the pneumatic piston to move upwards together with the piston rod, and the piston rod is driven to move upwards in a coaxial butt joint manner; meanwhile, after the movable reversing valve module moves downwards, the cam surface of the arc-shaped raised line on the sliding block seat is pressed against the roller shaft, the roller shaft applies acting force to the cam surface of the arc-shaped raised line under the action of the spring to push the sliding block seat to move upwards, so that the movable reversing valve module is positioned at the position after the sliding block is moved upwards, reversing reset is realized, and automatic reversing is realized through reciprocating circulation.
The front and rear parts of the sliding block seat are provided with the arc convex strips which are horizontally arranged, and the reversing and resetting are controlled by the roller shaft which is elastically propped up, so that the reversing operation has the advantages of stability, reliability, low noise and convenience in maintenance.
In the plunger pump component, a pump body component comprises a hydraulic cylinder, a suction joint connected to the lower end of the hydraulic cylinder and a discharge joint connected to the upper end of the hydraulic cylinder, the plunger component comprises a plunger arranged in the hydraulic cylinder and a plunger rod arranged at the upper end of the plunger and used for being connected with the piston rod, a passage for communicating the suction joint and the discharge joint is arranged on the plunger, a first one-way ball valve is arranged on the passage between the suction joint and the plunger, and a second one-way ball valve is arranged on the passage between the plunger and the discharge joint.
Preferably, the diameter of the pneumatic piston is 1.25-1.5 times of the diameter of the plunger.
By arranging the reasonable pneumatic piston and the plunger diameter, the plunger pump with low compression ratio suitable for the water mist sand blasting machine can be formed.
In the invention, the roller shaft is tightly propped against the sliding block seat through the guide rod, the spring and the sliding sleeve. Preferably, a rolling sleeve which is contacted with the cam surface on the arc convex strip of the sliding block seat is arranged on the rolling shaft so as to reduce the friction force when the sliding block seat moves.
In the invention, the upper end of the pneumatic piston is also provided with a limit nut.
The beneficial effects of the invention are as follows:
firstly, according to the improved structure of the plunger pump for the water mist sand blasting machine, the reversing component and the plunger pump component are arranged to be separate components which are assembled independently to form a modularized structure, so that the assembly and maintenance are facilitated, and on the other hand, the reversing component is provided with a cylinder body and a pneumatic piston, so that compared with a traditional integrated plunger pump structure, the problem that the reversing component affects power due to frosting in winter can be effectively solved.
Secondly, the improved structure of the plunger pump for the water mist sand blasting machine is convenient and quick to assemble and convenient to maintain due to the structure that the reversing component and the plunger pump component are connected through the connecting studs.
Thirdly, according to the improved structure of the plunger pump for the water mist sand blasting machine, the arc-shaped convex strips which are horizontally arranged are arranged at the front and rear parts of the sliding block seat, and the technical scheme that reversing reset is controlled through the roller shaft which is elastically propped is adopted, so that the reversing operation has the advantages of stability, reliability, low noise and convenience in maintenance.
Fourth, according to the improved structure of the plunger pump for the water mist sand blasting machine, by arranging the reasonable pneumatic piston and the plunger diameter, the plunger pump with a low compression ratio suitable for the water mist sand blasting machine can be formed.
Fifth, according to the improved structure of the plunger pump for the water mist sand blasting machine, the rolling sleeve which is in contact with the cam surface on the arc convex strip of the sliding block seat is arranged on the rolling shaft, so that friction force when the sliding block seat moves can be effectively reduced.
Drawings
FIG. 1 is a schematic view of the outline structure of an improved structure of a plunger pump for a water mist sandblasting machine of the present invention;
fig. 2 is a schematic view of the internal structure of the reversing element of fig. 1;
FIG. 3 is a cross-sectional view (left side view) of the portion of FIG. 2 that is directed to a traveling reversing valve module;
fig. 4 is a schematic view of the internal structure of the plunger pump component of fig. 1.
In the figure: 1. the reversing element, 2, the reciprocating rod assembly, 3, the pump body assembly, 4, the plunger assembly, 5, the connecting stud, 6, the cylinder block, 7, the pneumatic piston, 8, the cylinder upper cover, 9, the cylinder lower cover, 10, the piston rod, 11, the valve chamber, 12, the reversing rod, 13, the upper reversing chamber, 14, the chamber, 15, the lower reversing chamber, 16, the intake pipe, 17, the cylinder upper chamber, 18, the cylinder lower chamber, 19, the movable reversing valve module, 20, the axial mounting hole, 21, the seat, 22, (seat position) spring, 23, the movable ring, 24, the sliding mating surface, 25, the slider seat, 26, the slider, 27, (slider position) spring, 28, the reversing hole, 29, the arc bead, 30, (arc bead position) spring, 31, the roller shaft, 32, the plunger pump element, 33, the housing assembly, 34, the hydraulic cylinder, 35, the suction joint, 36, the spouting joint, 37, the plunger, 38, the plunger rod, 39, the first one-way, 40, the second one-way ball valve, 41, the stop nut, 42, the guide rod, 43.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
An embodiment of a plunger pump improved structure for a water mist sand blasting machine is shown in fig. 1 to 4, and comprises a reversing component 1 and a plunger pump component 32 which are respectively and independently assembled, wherein the reversing component 1 and the plunger pump component 32 are arranged and butted according to the up-down position, the reversing component 1 comprises a shell component 33 and a reciprocating rod component 2 which is arranged on the shell component 33 and can move up and down in a reversing way, the plunger pump component 32 comprises a pump body component 3 and a plunger component 4 which is arranged on the pump body component 3 and can move up and down, the reciprocating rod component 2 is butted coaxially with the plunger component 4, and the shell component 33 and the pump body component 3 are fixedly connected through a plurality of connecting studs 5; the reversing element 1 is a reversing element with a cylinder block 6 and a pneumatic piston 7.
In the above technical solution, the reversing component 1 and the plunger pump component 32 are configured as separate components which are assembled independently, so that a modularized structure is formed, which is beneficial to simplifying assembly and maintenance on one hand, and on the other hand, because the reversing component 1 is a reversing component with a cylinder block 6 and a pneumatic piston 7, compared with the traditional integrated plunger pump structure, the problem that the reversing component affects power due to frosting in winter can be effectively solved.
The specific structure of the housing assembly 33 in this embodiment is: the shell assembly 33 comprises the cylinder body 6, a cylinder upper cover 8 is arranged at the upper end of the cylinder body 6, a cylinder lower cover 9 is arranged at the lower end of the cylinder body 6, the reciprocating rod assembly 2 comprises a pneumatic piston 7 arranged in the cylinder body 6 and a piston rod 10 connected in an inner hole of the pneumatic piston 7, the cylinder lower cover 9 is fixedly connected with the pump body assembly 3 through the connecting stud 5, and the piston rod 10 passes through the cylinder lower cover 9 and is coaxially butted with the plunger assembly 4.
The structure that the reversing component 1 and the plunger pump component 32 are connected through the connecting stud 5 is convenient and quick to assemble and convenient to maintain.
The specific structure of the reversing component 1 in this embodiment is: the reversing component 1 comprises a gas distribution chamber 11 arranged at the upper end of the cylinder upper cover 8 and a reversing rod 12 connected between the gas distribution chamber 11 and the piston rod 10, the gas distribution chamber 11 comprises an upper reversing chamber 13, a gas inlet chamber 14 and a lower reversing chamber 15 which are sequentially arranged from top to bottom and are mutually separated, the gas inlet chamber 14 is connected with a gas inlet 16 pipe, the upper reversing chamber 13 is provided with a passage communicated with a cylinder body upper cavity 17, the lower reversing chamber 15 is provided with a passage communicated with a cylinder body lower cavity 18, a movable reversing valve module 19 used for communicating the gas inlet chamber 14 with the upper reversing chamber 13 or communicating the gas inlet chamber 14 with the lower reversing chamber 15 is arranged at the connecting part of the reversing rod 12 and the gas distribution chamber 11, the upper end of the piston rod 10 is provided with an axial mounting hole 20, the lower end of the reversing rod 12 is sequentially connected with a seat ring 21, a spring 22 and a movable ring 23 from bottom to top, the reversing rod 12 is inserted into the axial mounting hole 20 together with the seat ring 21, the spring 22 and the movable ring 23, and the movable ring 23 are respectively matched with the axial mounting hole 20.
Preferably, a sliding matching surface 24 is arranged between the air inlet chamber 14 and the movable reversing valve module 19, the upper reversing chamber 13, the air inlet chamber 14 and the lower reversing chamber 15 are respectively provided with an orifice on the sliding matching surface 24, the air inlet chamber 14 of the movable reversing valve module 19 is communicated with the upper reversing chamber 13 after the movable reversing valve module 19 moves up, and the air inlet chamber 14 of the movable reversing valve module 19 is communicated with the lower reversing chamber 15 after the movable reversing valve module 19 moves down.
Preferably, the movable reversing valve module 19 includes a sliding block seat 25 disposed on the upper portion of the reversing lever 12, and sliding blocks 26 respectively mounted on the left and right side surfaces of the sliding block seat 25 and capable of moving left and right, the sliding blocks 26 are tightly pressed against the sliding matching surface 24 through springs 27, and reversing holes 28 are disposed on the sliding blocks 26.
Preferably, arc-shaped protruding strips 29 are horizontally arranged at the front and rear parts of the sliding block seat 25, and a roller shaft 31 which horizontally tightens the cam surface on the arc-shaped protruding strips 29 on the sliding block seat 25 through a spring 30 is arranged at the upper end of the cylinder upper cover 8 in the direction right to the arc-shaped protruding strips 29 so as to control reversing.
The working principle of the mobile reversing valve module 19 for realizing the automatic reversing operation in the embodiment is as follows: when the reversing valve is in operation, compressed air is communicated and enters the air inlet chamber 14 through the air inlet pipe 16, and when the movable reversing valve module 19 on the reversing lever 12 is in the position after being moved upwards, the compressed air in the air inlet chamber 14 is communicated with the upper reversing chamber 13, and the compressed air in the air inlet chamber 14 enters the upper reversing chamber 13; because the upper reversing chamber 13 is provided with a passage communicated with the upper cavity 17 of the cylinder body, compressed air in the upper reversing chamber 13 enters the upper cavity 17 of the cylinder body to push the pneumatic piston 7 to move downwards together with the piston rod 10, so as to drive the plunger assembly 4 coaxially butted with the piston rod 10 to move downwards; when the pneumatic piston 7 moves downwards to the limit position, the pneumatic piston 7 stops moving, at the moment, the pressure of the compressed air in the upper cavity 17 of the cylinder body is gradually increased, the compressed air after the pressure increase presses the movable ring 23 on the reversing rod 12 to move downwards, the pressure applied by the compressed air to the movable ring 23 is transferred to the seat ring 21 through the spring 22, and when the pressure of the compressed air is increased to a set pressure value, the seat ring 21 drives the reversing rod 12 to move downwards, and the movable reversing valve module 19 at the upper end of the reversing rod 12 is caused to move downwards; the movable reversing valve module 19 moves downwards to realize reversing, so that the air inlet chamber 14 is communicated with the lower reversing chamber 15, compressed air in the air inlet chamber enters the lower reversing chamber 15, and as the lower reversing chamber 15 is provided with a passage communicated with the lower cavity 18 of the cylinder body, the compressed air in the lower reversing chamber 15 enters the lower cavity 18 of the cylinder body to push the pneumatic piston 7 to move upwards together with the piston rod 10, so that the piston assembly 4 coaxially butted with the piston rod 19 is driven to move upwards; meanwhile, after the movable reversing valve module 19 moves downwards, the cam surface of the arc-shaped protruding strip 29 on the sliding block seat 25 is pressed against the roller shaft 31 (as shown in fig. 3), the roller shaft 31 applies acting force to the cam surface of the arc-shaped protruding strip 29 under the action of the spring 30 to push the sliding block seat 25 to move upwards, so that the movable reversing valve module 19 is in the position after moving upwards, reversing reset is realized, and automatic reversing is realized through reciprocating circulation.
The front and rear parts of the slide block seat 25 are provided with the arc convex strips 29 which are horizontally arranged, and the reversing and resetting are controlled by the roller shaft 31 which is elastically propped up, so that the reversing operation has the advantages of stability, reliability, low noise and convenient maintenance.
In the plunger pump member 32 of the present embodiment, the pump body assembly 3 includes a hydraulic cylinder 34, a suction joint 35 connected to a lower end of the hydraulic cylinder 34, and a discharge joint 36 connected to an upper end of the hydraulic cylinder 34, the plunger assembly 4 includes a plunger 37 provided in the hydraulic cylinder 34, and a plunger rod 38 provided at an upper end of the plunger 37 and connected to the piston rod 10, a passage communicating the suction joint 35 and the discharge joint 36 is provided in the plunger 37, a first check ball valve 39 is provided in a passage between the suction joint 35 and the plunger 37, and a second check ball valve 40 is provided in a passage between the plunger 37 and the discharge joint 36.
Preferably, the diameter of the pneumatic piston 7 is 1.25 to 1.5 times the diameter of the plunger 37.
By providing the reasonable diameters of the pneumatic piston 7 and the plunger 37, a plunger pump with a low compression ratio suitable for a water mist sand blasting machine can be formed.
In this embodiment, the roller shaft 31 abuts against the slider seat 25 through the guide rod 42, the spring 30 and the sliding sleeve 43. Preferably, the roller shaft 31 is provided with a rolling sleeve contacting with the cam surface on the arc-shaped convex strip 29 of the sliding block seat 25 to reduce the friction force when the sliding block seat 25 moves.
In this embodiment, a stop nut 41 is further disposed at the upper end of the pneumatic piston 7.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The improved structure of the plunger pump for the water mist sand blasting machine is characterized by comprising a reversing component and a plunger pump component which are respectively and independently assembled, wherein the reversing component and the plunger pump component are arranged and butted according to the upper and lower positions, the reversing component comprises a shell component and a reciprocating rod component which is arranged on the shell component and can perform up-and-down reversing movement, the plunger pump component comprises a pump body component and a plunger component which is arranged on the pump body component and can move up and down, the reciprocating rod component is coaxially butted with the plunger component, and the shell component is fixedly connected with the pump body component through a plurality of connecting studs; wherein the reversing component is a reversing component with a cylinder body and a pneumatic piston; the reciprocating rod assembly comprises a pneumatic piston arranged in the cylinder body and a piston rod connected in an inner hole of the pneumatic piston, the cylinder lower cover is fixedly connected with the pump body assembly through the connecting stud, and the piston rod passes through the cylinder lower cover to be in coaxial butt joint with the plunger assembly; the reversing component comprises an air distribution chamber arranged at the upper end of the upper cover of the air cylinder and a reversing rod connected between the air distribution chamber and the piston rod, wherein the air distribution chamber comprises an upper reversing chamber, an air inlet chamber and a lower reversing chamber which are sequentially arranged from top to bottom and are mutually separated, the air inlet chamber is connected with an air inlet pipe, the upper reversing chamber is provided with a passage communicated with an upper cavity of the air cylinder body, the lower reversing chamber is provided with a passage communicated with a lower cavity of the air cylinder body, the reversing rod is provided with a movable reversing valve module which is positioned at the joint of the reversing rod and the air distribution chamber and is used for communicating the air inlet chamber with the upper reversing chamber or communicating the air inlet chamber with the lower reversing chamber, the upper end of the piston rod is provided with an axial mounting hole, the lower end of the reversing rod is sequentially connected with a seat ring, a spring and a movable ring from bottom to top, the reversing rod, the seat ring and the movable ring are inserted into the axial mounting hole together, and the movable ring and the seat ring are respectively in sliding fit with the axial mounting hole; the plunger pump component comprises a hydraulic cylinder, a suction connector connected with the lower end of the hydraulic cylinder, and a discharge connector connected with the upper end of the hydraulic cylinder, wherein the plunger component comprises a plunger arranged in the hydraulic cylinder and a plunger rod arranged at the upper end of the plunger and connected with the piston rod, a passage communicated with the suction connector and the discharge connector is arranged on the plunger, a first one-way ball valve is arranged on the passage between the suction connector and the plunger, and a second one-way ball valve is arranged on the passage between the plunger and the discharge connector.
2. The improved structure of a plunger pump for a water mist sand blasting machine according to claim 1, wherein a sliding matching surface is arranged between the air inlet chamber and the movable reversing valve module, the upper reversing chamber, the air inlet chamber and the lower reversing chamber are respectively provided with an orifice on the sliding matching surface, the air inlet chamber of the movable reversing valve module is communicated with the upper reversing chamber after the movable reversing valve module moves upwards, and the air inlet chamber of the movable reversing valve module is communicated with the lower reversing chamber after the movable reversing valve module moves downwards.
3. The improved structure of a plunger pump for a water mist sand blasting machine according to claim 2, wherein the movable reversing valve module comprises a sliding block seat arranged on the upper part of the reversing rod, sliding blocks respectively arranged on the left side surface and the right side surface of the sliding block seat and capable of moving left and right, the sliding blocks are tightly propped against the sliding matching surface through springs, and reversing holes are formed in the sliding blocks.
4. The improved structure of the plunger pump for the water mist sand blasting machine according to claim 3, wherein arc-shaped convex strips which are horizontally arranged are arranged at the front and rear parts of the sliding block seat, and a roller shaft which is used for controlling reversing by tightly pressing a cam surface on the arc-shaped convex strips on the sliding block seat through a spring water is arranged at the upper end of the cylinder upper cover in the direction right to the arc-shaped convex strips.
5. The improved structure of a plunger pump for a water mist sand blasting machine according to claim 1, wherein the diameter of the pneumatic piston is 1.25-1.5 times of the diameter of the plunger.
6. The improved structure of the plunger pump for the water mist sandblasting machine according to claim 4, wherein the roller shaft is provided with a rolling sleeve which is in contact with the cam surface on the arc-shaped convex strip of the sliding block seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197506.9A CN109838358B (en) | 2019-03-15 | 2019-03-15 | Improved structure of plunger pump for water mist sand blasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197506.9A CN109838358B (en) | 2019-03-15 | 2019-03-15 | Improved structure of plunger pump for water mist sand blasting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109838358A CN109838358A (en) | 2019-06-04 |
| CN109838358B true CN109838358B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197506.9A Active CN109838358B (en) | 2019-03-15 | 2019-03-15 | Improved structure of plunger pump for water mist sand blasting machine |
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| CN (1) | CN109838358B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5067881A (en) * | 1989-05-17 | 1991-11-26 | Akebono Brake Industry Co., Ltd. | Plunger-operated hydraulic pump |
| WO2001069088A1 (en) * | 2000-03-15 | 2001-09-20 | Jae Seak Ju | Hydraulic pressure booster cylinder |
| CN2702078Y (en) * | 2004-06-03 | 2005-05-25 | 王连军 | Pneumatic hydraulic pump |
| CN101382122A (en) * | 2008-09-18 | 2009-03-11 | 浙江大学 | Pneumatic pump |
| CN201461295U (en) * | 2009-07-21 | 2010-05-12 | 上海神开石油化工装备股份有限公司 | Automatic reversing pneumatic pump |
| WO2014034270A1 (en) * | 2012-08-28 | 2014-03-06 | パスカルエンジニアリング株式会社 | Compressed air driven reciprocating piston hydraulic pump |
-
2019
- 2019-03-15 CN CN201910197506.9A patent/CN109838358B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5067881A (en) * | 1989-05-17 | 1991-11-26 | Akebono Brake Industry Co., Ltd. | Plunger-operated hydraulic pump |
| WO2001069088A1 (en) * | 2000-03-15 | 2001-09-20 | Jae Seak Ju | Hydraulic pressure booster cylinder |
| CN2702078Y (en) * | 2004-06-03 | 2005-05-25 | 王连军 | Pneumatic hydraulic pump |
| CN101382122A (en) * | 2008-09-18 | 2009-03-11 | 浙江大学 | Pneumatic pump |
| CN201461295U (en) * | 2009-07-21 | 2010-05-12 | 上海神开石油化工装备股份有限公司 | Automatic reversing pneumatic pump |
| WO2014034270A1 (en) * | 2012-08-28 | 2014-03-06 | パスカルエンジニアリング株式会社 | Compressed air driven reciprocating piston hydraulic pump |
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| Publication number | Publication date |
|---|---|
| CN109838358A (en) | 2019-06-04 |
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