CN203384001U - Plunger and inclined disc type slurry pump - Google Patents
Plunger and inclined disc type slurry pump Download PDFInfo
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- CN203384001U CN203384001U CN201320353644.XU CN201320353644U CN203384001U CN 203384001 U CN203384001 U CN 203384001U CN 201320353644 U CN201320353644 U CN 201320353644U CN 203384001 U CN203384001 U CN 203384001U
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Abstract
The utility model discloses a plunger and inclined disc type slurry pump. The slurry pump comprises a base, a petticoat valve with the top end sleeved in the base, a cylinder barrel body with the upper surface close to the bottom end of the petticoat valve and a lower casing mounted below the cylinder barrel body, and further comprises a spindle. The outside of the petticoat valve is covered with a feeding hopper, a plurality of cylinder barrels are distributed annularly uniformly in the cylinder barrel body, and a plunger is arranged in each of the cylinder barrels. An inclined disc is arranged in the lower casing, and a rotation bearing is mounted at the bottom end of the casing and is connected with a drive portion. A plurality of rollers are arranged at the top end of the rotation bearing, and the highest points of the rollers form an inclined plane. The inclined disc is connected universally with the cylinder barrel body, the lower surface of the inclined disc and the inclined plane coincide, and an included angle is formed between the inclined disc and the horizontal direction. The rotation bearing rotates to drive the spindle to rotate synchronously, and the spindle rotates to drive the petticoat valve to rotate synchronously. By means of the slurry pump, continuous non-pulsation pumping can be achieved, and the operation is reliable and stable.
Description
Technical field
The utility model relates to a kind of slurry pump, relates in particular to a kind of plunger sloping plate formula slurry pump.
Background technique
In engineering construction at present, be mainly the operations such as spraying, concrete wet shotcrete technology, its manipulating object is the semifluid materials such as mortar, mud, fine concrete.Existing pumping equipment generally adopts the modes such as extruding or piston type pumping, and mass transport, to certain position, is mixed and sprayed with pressurized air.Yet the modes such as extruding require high to raw material, be unsuitable for the material with particle, and pumping pressure is low; And the twin-tub in traditional two-cylinder piston formula pumping equipment must adopt and is horizontally disposed with, rely on vacuum to carry out suction, due to the switching of twin-tub,, there is larger pulsation phenomenon in the suction weak effect, affects jeting effect.
As can be seen here, prior art awaits further improving.
The model utility content
The utility model is the deficiency of avoiding above-mentioned prior art to exist, and a kind of continuous pulsating movement free pumping and effective plunger sloping plate formula slurry pump of suction realized is provided.
The technological scheme that the utility model adopts is:
Plunger sloping plate formula slurry pump, comprise that pedestal, top are nested with petticoat valve in said base, upper surface near the cylinder barrel of described petticoat valve bottom and are arranged on the lower shell body below described cylinder barrel; The outside mask of described petticoat valve is provided with elevating hopper; Go in ring and be evenly equipped with several cylinder barrels in described cylinder barrel, be provided with plunger in described each cylinder barrel, the bottom of described plunger is fixed with guide mechanism, the upper and lower end of described cylinder barrel is hatch frame, the upper end of described cylinder barrel is connected with above-mentioned elevating hopper, and the lower end of described cylinder barrel is connected with lower shell body; Be provided with swash plate in described lower shell body, described swash plate and substantially horizontal are certain angle, and described swash plate is connected with cylinder barrel is universal, and described swash plate and above-mentioned each guide mechanism are flexibly connected; The bottom of described lower shell body is equipped with pivoting support, and described pivoting support is positioned at the below of above-mentioned swash plate, and described pivoting support is connected with drive portion, and described drive portion is motor, between described motor and above-mentioned pivoting support, is provided with driving gear; Described plunger sloping plate formula slurry pump also comprises main shaft, and the upper end of described main shaft is connected with above-mentioned petticoat valve, and the top of lower end and pivoting support is connected.
The top of described pivoting support is provided with a plurality of rollers, and the plane at the line place of the peak of described roller is a clinoplain, and the lower surface of described swash plate and above-mentioned clinoplain coincide.
The cross section suitable for reading of described petticoat valve is rounded, and the end opening cross section is kidney-shaped; Described petticoat valve is provided with inner chamber, and the cross section of described inner chamber is transitioned into kidney-shaped by circle from top to bottom; The suitable for reading of described petticoat valve is arranged in said base, and described pedestal is connected with elevating hopper by connecting plate; The end opening of described petticoat valve is pressed on the upper surface of cylinder barrel, and the plunger in the cylinder barrel corresponding with the end opening of described petticoat valve is done and moved upward, and carries out discharging; The both sides of the end opening of described petticoat valve are fixed with respectively isolated area; Not only not relative with the end opening of above-mentioned petticoat valve, but also not relative with above-mentioned isolated area cylinder barrel in plunger do and move downward, carry out suction; The Motion curves of described plunger is sinusoidal curve.
Be inlaid with wearing plate on the upper-end surface of described cylinder barrel, the end opening of described petticoat valve is close to above-mentioned wearing plate, and the cross section of described wearing plate in the form of a ring, offers a plurality of ports on described wearing plate, and wearing plate communicates with cylinder barrel by described port.
Described guide mechanism comprises guide sleeve, and the top of described guide sleeve and above-mentioned plunger are connected, and in described guide sleeve, are provided with connecting rod; The top of described connecting rod and above-mentioned guide sleeve are hinged; Be evenly equipped with a plurality of bearing supports on the end face of described swash plate, in described each bearing support, equal cross-under has rotating shaft, and the lower end of described rotating shaft and above-mentioned connecting rod is hinged.
Described pivoting support comprises rotating part and assembly department, and described rotating part is positioned at the top of above-mentioned assembly department; Described rotating part drives revolution by above-mentioned drive portion, and the bottom of described assembly department and above-mentioned lower shell body is connected.
Described main shaft comprises main shaft and lower main axis, and described upper and lower main shaft connects by spline housing; The top of described upper main shaft and above-mentioned petticoat valve are connected, and bottom is positioned at above-mentioned cylinder barrel; The top of described lower main axis is positioned at above-mentioned cylinder barrel, and bottom and described rotating part are connected.
The central point of described swash plate is positioned on the center line of above-mentioned main shaft, and described swash plate is connected with described cylinder barrel is universal by cross axle, and the central point of described cross axle is positioned on the center line of above-mentioned main shaft; An axle in described cross axle is connected with above-mentioned swash plate, and another root axle is connected with above-mentioned cylinder barrel; Described cross axle diaxon infall is an annular region, and above-mentioned main shaft passes this annular region and is not in contact with it.
Described roller has at least the peak of three and each roller to form a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate, with the angle between substantially horizontal, equate; The top of described each roller is provided with the arc shaped surface suitable with the lower surface of above-mentioned swash plate.
Described roller has three, and it is respectively the first roller, the second roller and three rollers, and the height of described first, second roller is identical, and both height are all lower than the height of described three rollers; The top of described three rollers is provided with the arc shaped surface suitable with the lower surface at above-mentioned swash plate two ends; The peak of described first, second and third roller forms a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate, with the angle between substantially horizontal, equate.
Owing to having adopted technique scheme, the obtained beneficial effect of the utility model is:
1, the rotation of the pivoting support in the utility model promotion swash plate swings, and makes the true dip direction of the angle of swash plate and substantially horizontal occur to change continuously, thereby can drive each plunger, does continuous moving up and down, and closely carries out continuous discharging and suction.
2, the drive of the pivoting support in the utility model petticoat valve rotates around spindle synchronous, makes the end opening of petticoat valve aim at all the time the cylinder barrel of doing the plunger place moved upward; By the continuous motion of plunger and petticoat valve, make suction and pumping carry out simultaneously, do not exist and switch moment, thereby can realize continuous pulsating movement free pumping, guarantee jet quality.
3, the cylinder barrel in the utility model is arranged vertically, and material can free fall under the effect of gravity, and suction is effective.
4, of the present utility model simple in structure, reliable stable, easy to operation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is side view of the present utility model.
Fig. 3 is A-A sectional view of the present utility model.
The structural representation that Fig. 4 is petticoat valve in the utility model.
Fig. 5 is C-C sectional view of the present utility model.
Fig. 6 is B-B sectional view of the present utility model.
The movement profiles that Fig. 7 is each plunger in the utility model.
Wherein,
1, pedestal 2, connecting plate 3, elevating hopper 4, petticoat valve 5, upper main shaft 6, wearing plate 7, cylinder barrel 8, cylinder barrel 9, plunger 10, guide sleeve 11, connecting rod 12, bearing support 13, lower shell body 14, swash plate 15, cross axle 16, lower main axis 17, drive portion 18, pivoting support 19, rotating part 20, assembly department 21, three rollers 22, the first roller 23, the second roller 24, isolated area 25, suitable for reading 26, end opening 27, spline housing
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail, but the utility model is not limited to these embodiments.
As shown in Figures 1 and 2, plunger sloping plate formula slurry pump, comprise that pedestal 1, top are nested with petticoat valve 4 in said base 1, upper surface near the cylinder barrel 7 of described petticoat valve 4 bottoms and are arranged on the lower shell body 13 below described cylinder barrel 7; The outside mask of described petticoat valve 4 is provided with elevating hopper 3; Interior the going in ring of described cylinder barrel 7 is evenly equipped with several cylinder barrels 8, be provided with plunger 9 in described each cylinder barrel 8, the bottom of described plunger 9 is fixed with guide mechanism, the upper and lower end of described cylinder barrel 8 is hatch frame, the upper end of described cylinder barrel 8 is connected with above-mentioned elevating hopper 3, and the lower end of described cylinder barrel 8 is connected with lower shell body 13; Be provided with swash plate 14 in described lower shell body 13, described swash plate 14 is flexibly connected with above-mentioned each guide mechanism, the bottom of described lower shell body 13 is equipped with pivoting support 18, and described pivoting support 18 is positioned at the below of above-mentioned swash plate 14, and described pivoting support 18 is connected with drive portion 17; The top of described pivoting support 18 is provided with a plurality of rollers, and the plane at the line place of the peak of described roller is a clinoplain, and the lower surface of described swash plate 14 and above-mentioned clinoplain coincide, and described swash plate 14 and substantially horizontal shape are in an angle; Described plunger sloping plate formula slurry pump also comprises main shaft, and the upper end of described main shaft and above-mentioned petticoat valve 4 are connected, and the top of lower end and pivoting support 18 is connected, and above-mentioned swash plate 14 is connected with cylinder barrel is universal; Described pivoting support 18 rotates and drives the spindle synchronous rotation, and main shaft rotates the described petticoat valve 4 of drive and synchronously rotates.
As shown in Figures 4 and 5, suitable for reading 25 cross section of described petticoat valve 4 is rounded, and the cross section of end opening 26 is kidney-shaped; Described petticoat valve 4 is provided with inner chamber, and the cross section of described inner chamber is transitioned into kidney-shaped by circle from top to bottom; Suitable for reading 25 of described petticoat valve 4 is arranged in said base 1, and described pedestal 1 is connected with elevating hopper 3 by connecting plate 2; The end opening 26 of described petticoat valve 4 is pressed on the upper surface of cylinder barrel 7, and the plunger 9 in the cylinder barrel corresponding with the end opening of described petticoat valve 4 is done and moved upward, and carries out discharging; The both sides of the end opening of described petticoat valve 4 are fixed with respectively isolated area 24; Not only not relative with the end opening 26 of above-mentioned petticoat valve 4, but also not relative with above-mentioned isolated area 24 cylinder barrel in plunger 9 do and move downward, carry out suction.
As shown in Figures 1 and 2, be inlaid with wearing plate 6 on the upper-end surface of described cylinder barrel 7, the end opening 26 of described petticoat valve 4 is close to above-mentioned wearing plate 6, and the cross section of described wearing plate 6 in the form of a ring, offer a plurality of ports on described wearing plate 6, wearing plate 6 communicates with cylinder barrel 8 by described port.
Under the rotarily driving of described drive portion 17, the above-mentioned petticoat valve 4 of the coaxial drive of described pivoting support 18 rotates, the end opening 26 of described petticoat valve 4 moves in a circle and the end opening 26 of described petticoat valve 4 is aimed at all the time the cylinder barrel of plunger 9 risings and pumped out material, thereby forms a discharge zone; And the cylinder barrel that plunger 9 descends is communicated with described elevating hopper 3, carries out suction, thereby form a material sucking area; The isolated area 24 of the end opening both sides of above-mentioned petticoat valve 4 can be used for material sucking area and discharge zone are separated; By this continuous motion, the utility model can reach the purpose of the materials such as mud in the described elevating hopper of pumping, and it is sent with certain pressure by the suitable for reading of described petticoat valve 4.Described pivoting support 18 rotates, and drive swash plate 14 and swing, thereby the true dip direction of the angle between swash plate 14 and substantially horizontal changes, and does upwards and also changes with the moving direction of the plunger 9 moved downward thereupon.
As shown in Figures 1 and 2, described guide mechanism comprises guide sleeve 10, and the top of described guide sleeve 10 is connected with above-mentioned plunger 9, in described guide sleeve 10, is provided with connecting rod 11; The top of described connecting rod 11 and above-mentioned guide sleeve 10 are hinged; Be evenly equipped with a plurality of bearing supports 12 on the end face of described swash plate 14, the interior equal cross-under of described each bearing support 12 has rotating shaft, and the bottom of described rotating shaft and above-mentioned connecting rod 11 is hinged.
As shown in Figures 1 and 2, described pivoting support 18 comprises rotating part 19 and assembly department 20, and described rotating part 19 is positioned at the top of above-mentioned assembly department 20; Described rotating part 19 drives revolution by above-mentioned drive portion 17, and described assembly department 20 is connected with the bottom of above-mentioned lower shell body 13; Along with the rotation of rotating part 19, the true dip direction of the angle between above-mentioned swash plate 14 and substantially horizontal also changes.
Along with the variation of the true dip direction of angle between above-mentioned swash plate 14 and substantially horizontal, drive described connecting rod 11 and move up and down, thereby promote plunger 9, move up and down; The Motion curves of described plunger 9 is sinusoidal curve.
As shown in Figures 1 and 2, described main shaft comprises main shaft 5 and lower main axis 16, and described upper and lower main shaft connects by spline housing 27; The top of described upper main shaft 5 and above-mentioned petticoat valve 4 are connected, and bottom is positioned at above-mentioned cylinder barrel 7; The top of described lower main axis 16 is positioned at above-mentioned cylinder barrel 7, and bottom and described rotating part 19 are connected.
As shown in Figure 1, Figure 2 and Figure 3, the central point of described swash plate 14 is positioned on the center line of above-mentioned main shaft, and described swash plate 14 is connected with described cylinder barrel is universal by cross axle 15, and the central point of described cross axle 15 is positioned on the center line of above-mentioned main shaft; An axle in described cross axle 15 is connected with above-mentioned swash plate 14, and another root axle is connected with above-mentioned cylinder barrel 7; Described cross axle diaxon infall is an annular region, and above-mentioned main shaft passes this annular region and is not in contact with it.
Described roller has the peak of a plurality of and each roller to form a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate 14, with the angle of substantially horizontal, equate; The top of described each roller is provided with the arc shaped surface suitable with above-mentioned swash plate 14 lower surfaces.
Preferably, described roller has three, and it is respectively the first roller 22, the second roller 23 and three rollers 21, and the height of described first, second roller is identical, and both height are all lower than the height of described three rollers 21; The top of described three rollers 21 is provided with the arc shaped surface suitable with the lower surface at above-mentioned swash plate 14 two ends; The peak of described first, second and third roller forms a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate 14, with the angle between substantially horizontal, equate.
Preferably, described drive portion is motor, between described motor and above-mentioned rotating part 19, is provided with driving gear.
The utility model is in running, and the plunger of the peak of described swash plate and one side of the line between minimum point is done and moved upward, and the plunger of opposite side is done and moved downward.
In conjunction with Fig. 6 and Fig. 7, existing by following concise and to the point description of the working procedure of model utility work:
Motor or motor are by driving driving gear to drive pivoting support 18 to rotate, the Curves that the peak of the roller on pivoting support 18 forms the true dip direction on plane change, thereby the true dip direction that promotes swash plate 14 also changes thereupon, connecting rod 11 each plungers 9 of promotion that are hinged with swash plate 14 move up and down respectively, and the Motion curves of plunger 9 is sinusoidal curve.
Meanwhile, pivoting support 18 drives petticoat valve 4 in the interior rotation of elevating hopper 3 by spindle synchronous, and makes the corresponding cylinder barrel of end opening 26 of petticoat valve 4 change successively; Due to the synchronous rotation of each parts, make the cylinder barrel at the plunger place moved upward aim at all the time the end opening 26 of above-mentioned petticoat valve 4, carry out discharging; The cylinder barrel at the plunger place moved downward is positioned at the outside of petticoat valve 4 all the time, carries out suction; Transfer and work as plunger the moment moved downward to by moving upward, the cylinder barrel at plunger place seals over against above-mentioned isolated area 24 and its district 24 that is isolated suitable for reading, and described isolated area has played the effect of discharge zone and material sucking area separation.
Nine plungers of take are example, and as shown in Figure 7, abscissa is the time, the displacement that y coordinate is plunger, and at t0 constantly, plunger 8 is positioned at isolated area, and plunger 5,6,7 moves upward, and is positioned at discharge zone; Plunger 9,1,2 moves downward, and is positioned at material sucking area; Plunger 4 starts to enter isolated area by discharge zone, and plunger 3 starts to leave isolated area and enters material sucking area; And so forth, by continuous suction and discharging, can reach the purpose of uninterrupted pumping.
Preferably, the shape of the end opening 26 by adjusting petticoat valve 4, each plunger of capable of regulating is positioned at the sequential in each district.
Although more use herein terms such as pedestal 1, connecting plate 2, petticoat valve 4, wearing plate 6, plunger 9, cross axle 15, pivoting support 18, isolated area 24, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Need to further illustrate, specific embodiment described herein is only to spiritual example explanation of the present utility model.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. plunger sloping plate formula slurry pump is characterized in that: comprise that pedestal, top are nested with petticoat valve in said base, upper surface near the cylinder barrel of described petticoat valve bottom and are arranged on the lower shell body below described cylinder barrel; The outside mask of described petticoat valve is provided with elevating hopper; Go in ring and be evenly equipped with several cylinder barrels in described cylinder barrel, be provided with plunger in described each cylinder barrel, the bottom of described plunger is fixed with guide mechanism, the upper and lower end of described cylinder barrel is hatch frame, the upper end of described cylinder barrel is connected with above-mentioned elevating hopper, and the lower end of described cylinder barrel is connected with lower shell body; Be provided with swash plate in described lower shell body, described swash plate and substantially horizontal are certain angle, and described swash plate is connected with cylinder barrel is universal, and described swash plate and above-mentioned each guide mechanism are flexibly connected; The bottom of described lower shell body is equipped with pivoting support, and described pivoting support is positioned at the below of above-mentioned swash plate, and described pivoting support is connected with drive portion, and described drive portion is motor, between described motor and above-mentioned pivoting support, is provided with driving gear; Described plunger sloping plate formula slurry pump also comprises main shaft, and the upper end of described main shaft is connected with above-mentioned petticoat valve, and the top of lower end and pivoting support is connected.
2. plunger sloping plate formula slurry pump according to claim 1, it is characterized in that: the top of described pivoting support is provided with a plurality of rollers, the plane at the line place of the peak of described roller is a clinoplain, and the lower surface of described swash plate and above-mentioned clinoplain coincide.
3. plunger sloping plate formula slurry pump according to claim 1, it is characterized in that: the cross section suitable for reading of described petticoat valve is rounded, and the end opening cross section is kidney-shaped; Described petticoat valve is provided with inner chamber, and the cross section of described inner chamber is transitioned into kidney-shaped by circle from top to bottom; The suitable for reading of described petticoat valve is arranged in said base, and described pedestal is connected with elevating hopper by connecting plate; The end opening of described petticoat valve is pressed on the upper surface of cylinder barrel, and the plunger in the cylinder barrel corresponding with the end opening of described petticoat valve is done and moved upward, and carries out discharging; The both sides of the end opening of described petticoat valve are fixed with respectively isolated area; Not only not relative with the end opening of above-mentioned petticoat valve, but also not relative with above-mentioned isolated area cylinder barrel in plunger do and move downward, carry out suction; The Motion curves of described plunger is sinusoidal curve.
4. plunger sloping plate formula slurry pump according to claim 3, it is characterized in that: on the upper-end surface of described cylinder barrel, be inlaid with wearing plate, the end opening of described petticoat valve is close to above-mentioned wearing plate, the cross section of described wearing plate in the form of a ring, offer a plurality of ports on described wearing plate, wearing plate communicates with cylinder barrel by described port.
5. plunger sloping plate formula slurry pump according to claim 2, it is characterized in that: described guide mechanism comprises guide sleeve, the top of described guide sleeve and above-mentioned plunger are connected, and in described guide sleeve, are provided with connecting rod; The top of described connecting rod and above-mentioned guide sleeve are hinged; Be evenly equipped with a plurality of bearing supports on the end face of described swash plate, in described each bearing support, equal cross-under has rotating shaft, and the lower end of described rotating shaft and above-mentioned connecting rod is hinged.
6. plunger sloping plate formula slurry pump according to claim 1, it is characterized in that: described pivoting support comprises rotating part and assembly department, described rotating part is positioned at the top of above-mentioned assembly department; Described rotating part drives revolution by above-mentioned drive portion, and the bottom of described assembly department and above-mentioned lower shell body is connected.
7. plunger sloping plate formula slurry pump according to claim 6, it is characterized in that: described main shaft comprises main shaft and lower main axis, described upper and lower main shaft connects by spline housing; The top of described upper main shaft and above-mentioned petticoat valve are connected, and bottom is positioned at above-mentioned cylinder barrel; The top of described lower main axis is positioned at above-mentioned cylinder barrel, and bottom and described rotating part are connected.
8. plunger sloping plate formula slurry pump according to claim 2, it is characterized in that: the central point of described swash plate is positioned on the center line of above-mentioned main shaft, described swash plate is connected with described cylinder barrel is universal by cross axle, and the central point of described cross axle is positioned on the center line of above-mentioned main shaft; An axle in described cross axle is connected with above-mentioned swash plate, and another root axle is connected with above-mentioned cylinder barrel; Described cross axle diaxon infall is an annular region, and above-mentioned main shaft passes this annular region and is not in contact with it.
9. plunger sloping plate formula slurry pump according to claim 2, it is characterized in that: described roller has at least the peak of three and each roller to form a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate, with the angle between substantially horizontal, equate; The top of described each roller is provided with the arc shaped surface suitable with the lower surface of above-mentioned swash plate.
10. plunger sloping plate formula slurry pump according to claim 2, it is characterized in that: described roller has three, it is respectively the first roller, the second roller and three rollers, and the height of described first, second roller is identical, and both height are all lower than the height of described three rollers; The top of described three rollers is provided with the arc shaped surface suitable with the lower surface at above-mentioned swash plate two ends; The peak of described first, second and third roller forms a curve, described Curves plane with the angle between substantially horizontal, with above-mentioned swash plate, with the angle between substantially horizontal, equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320353644.XU CN203384001U (en) | 2013-06-20 | 2013-06-20 | Plunger and inclined disc type slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320353644.XU CN203384001U (en) | 2013-06-20 | 2013-06-20 | Plunger and inclined disc type slurry pump |
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| Publication Number | Publication Date |
|---|---|
| CN203384001U true CN203384001U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320353644.XU Expired - Fee Related CN203384001U (en) | 2013-06-20 | 2013-06-20 | Plunger and inclined disc type slurry pump |
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| CN (1) | CN203384001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122154A (en) * | 2020-01-10 | 2020-05-08 | 上海大学 | Three-wire contact fatigue testing machine for realizing sliding-rolling ratio working condition |
-
2013
- 2013-06-20 CN CN201320353644.XU patent/CN203384001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122154A (en) * | 2020-01-10 | 2020-05-08 | 上海大学 | Three-wire contact fatigue testing machine for realizing sliding-rolling ratio working condition |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20150620 |
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| EXPY | Termination of patent right or utility model |