CN107355359B - Reciprocating continuous mud pump - Google Patents
Reciprocating continuous mud pump Download PDFInfo
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- CN107355359B CN107355359B CN201710693613.1A CN201710693613A CN107355359B CN 107355359 B CN107355359 B CN 107355359B CN 201710693613 A CN201710693613 A CN 201710693613A CN 107355359 B CN107355359 B CN 107355359B
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- crankshaft
- mud
- piston
- pump
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- 239000002002 slurry Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 13
- 238000005553 drilling Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a reciprocating type continuous slush pump, be provided with multichannel lumen side by side in the pump body, the end of every way lumen is provided with mud suction line and mud discharge line, be provided with the suction valve and the discharge valve of control both break-make respectively on mud suction line and mud discharge line, be provided with the piston rod of taking the piston respectively in every way pipeline, the piston rod is at the in-process of lumen reciprocating motion, the opening and the closure of suction valve and discharge valve are controlled in proper order, and then inhale the working chamber and discharge through mud discharge line through mud suction line. The multi-channel pipe cavity is equivalent to the parallel connection of a plurality of slurry pumps, the pistons in the multi-channel pipe cavity are driven by the same crankshaft to reciprocate, and because the connection points of each pipe cavity and the crankshaft are different, the pistons in the multi-channel pipe cavity are in different stroke sections when the crankshaft moves, so that the pipe cavities in different channels are in different pumping and sucking states, the slurry can be uniformly discharged, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to a mud pump for drilling equipment, in particular to a reciprocating continuous mud pump.
Background
The pump for drilling is one of the components of drilling equipment, and is mainly used for washing holes, and is defined as slurry pump according to the standard promulgated by the ministry of the Ministry of China, and the pump is defined as reciprocating pump. During drilling operations, mud pumps are responsible for delivering cleaning fluids into and circulating cleaning fluids through the borehole. In some special procedures, a mud pump is used for pouring substances such as cement paste into the hole.
The principle of the existing reciprocating mud pump is shown in fig. 1, and it is composed of water filter 1, suction valve 2, pump cylinder 3 (i.e. working chamber), piston 4, piston rod 5, cross head 6, connecting rod 7, crank shaft 8, crank pin 9, discharge valve 10, discharge pipe 11 and other main components, and usually the cross head is used as a boundary line, one end near the pump cylinder is called the hydraulic end of the pump, and the other end near the power input is called the power end of the pump.
The power machine drives the main shaft rotating wheel through the transmission parts such as belt, belt pulley, gear and the like, and the crank shaft 8 rotates at an angular speed
Rotate along with the main shaft and are provided withWhen the crankshaft rotates, the connecting rod 7 connected to one end of the crankshaft drives the crosshead 6 at the other end of the connecting rod to reciprocate, and the crosshead drives the piston 4 to reciprocate through the piston rod 5 connected to the crosshead, so that the volume of the cavity 3 is changed regularly.
When the piston moves to the right from the left end position (left dead center) of the cylinder, the volume of the cylinder at the left end of the piston continuously changes. Because the pump cylinder is a closed cavity and is not communicated with the outside atmosphere, the pressure in the left cylinder chamber is reduced to form negative pressure (lower than atmospheric pressure), the liquid in the water suction pool drives the suction valve to enter the pump cylinder under the action of the atmospheric pressure of the liquid level, drives the suction valve to enter the pump cylinder until the piston moves to the rightmost position (right dead center), and the working process is called the suction process of the pump;
after the piston reaches the right dead center (i.e. the crank is rotated past)
rad), the suction valve is closed under the action of self-weight and spring force, the piston moves towards the left (towards the hydraulic end), at the moment, the volume of the pump cylinder at the hydraulic end is reduced, the working fluid is extruded, the pressure in the cylinder is gradually increased, the discharge valve is extruded, the liquid is discharged, and enters a discharge pipeline, and the process is called as the discharge process of the pump. The piston is in a reciprocating process, the single-action pump sucks and discharges liquid once, and the piston continuously and circularly reciprocates to continuously suck and discharge the liquid.
Therefore, the conventional reciprocating mud pump works intermittently, namely, mud is sucked and then discharged, so that the flow of the reciprocating mud pump is uneven, a lot of adverse effects are brought to drilling work, for example, the capability of flushing liquid carrying rock powder is reduced, and accidents such as drill burying, drill pasting and the like are easily caused; can cause increased pressure fluctuations in the fluid stream, thereby causing collapse or severe loss of the bore wall; the inertia of liquid flow in the suction system is increased, the suction performance is deteriorated, a strong impact phenomenon occurs in the hydraulic cylinder, a discharge system can vibrate, and the service life of the pump and accessories thereof is reduced; when power media are provided for a turbine drilling tool, a screw drilling tool and the like, the drilling tool is not stably operated due to the fluctuation of the flow of flushing liquid, the time is fast and slow, the power of a prime mover is unnecessarily consumed and the like.
Disclosure of Invention
In order to solve the problems caused by uneven and stable flow of the conventional reciprocating mud pump, the invention provides a reciprocating continuous mud pump which is provided with a plurality of pipe cavities, each independent pipe cavity can be an independent reciprocating pump, and the reciprocating pumps drive the reciprocating pumps to do asynchronous motion through the same crankshaft, so that mud can be uniformly discharged, and the working efficiency is greatly improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a reciprocating continuous mud pump comprises a pump body, wherein multiple pipe cavities are arranged in the pump body side by side, the tail end of each pipe cavity is provided with a mud suction pipeline and a mud discharge pipeline, a suction valve and a discharge valve for controlling the connection and disconnection of the mud suction pipeline and the mud discharge pipeline are respectively arranged on the mud suction pipeline and the mud discharge pipeline, a piston rod with a piston is respectively arranged in each pipeline, and the pipe cavities are divided into a power cavity and a working cavity with constantly changing volumes in the reciprocating motion process of the pistons along with the piston rod in the pipe cavities, so that the opening and closing of the suction valve and the discharge valve are sequentially controlled by utilizing the air pressure change caused by the volume change of the working cavity, and then mud is sucked into the working cavity through the mud suction pipeline and is discharged through the mud discharge pipeline; the other end of the piston rod in each pipe cavity is hinged with the connecting rods in a one-to-one correspondence mode through the pin shafts, and the other ends of all the connecting rods are fixed to different positions of the same crankshaft, so that when the crankshaft rotates to a certain position, each connecting rod drives the piston rod to enable the piston to be located at different positions in the pipe cavity, and then the slurry suction pipeline and the slurry discharge pipeline of each pipe cavity are opened or closed in sequence.
The crankshaft is driven to rotate by the power input shaft through the power transmission assembly, the power transmission assembly comprises a plurality of driven gears with different tooth numbers, a driving gear and a shifting lever, the driven gears are arranged on the crankshaft, the driving gear is arranged on the power input shaft, the shifting lever is provided with a shifting fork, and the driving gear is driven to be meshed with the different driven gears on the crankshaft through the shifting lever and the shifting fork so as to change the rotating speed of the crankshaft.
According to the invention, the driving gear is a duplicate gear, the number of the driven gears is two, the deflector rod is arranged in holes in two supporting plates in the pump body in a penetrating manner, one end of the deflector rod penetrates out of the pump body, the shifting fork is positioned between the two supporting plates, a limiting mechanism for clamping the deflector rod is arranged in one supporting plate, the limiting mechanism comprises a cylindrical cavity arranged in the supporting plate, the deflector rod penetrates through the cylindrical cavity, a stud is arranged in the cylindrical cavity, the top end of the stud extends out of the cylindrical cavity and then is fixed by a nut, a steel ball is tightly abutted to the deflector rod through a compression spring at the bottom end of the stud, and two arc-shaped positioning recesses are arranged on the deflector rod, so that when the deflector rod is pulled or pushed to enable the two gears of the duplicate gear to be respectively meshed with the two driven gears, the steel ball is.
In the invention, the crankshaft and the connecting rods are all positioned in a crankshaft cavity in the pump body, an oil measuring ruler for detecting the height of lubricating oil in the crankshaft cavity is arranged on the side wall of the pump body, and an oil drain plug for draining redundant lubricating oil in the crankshaft cavity is arranged at the bottommost part of the crankshaft cavity.
In the invention, the tube cavity is divided into three paths, the crankshaft is a bent shaft formed by integrally connecting four short shafts and three groups of U-shaped shafts with the same shape and size end to end, the four short shafts are positioned on the same straight line, the three groups of U-shaped shafts are uniformly distributed around the straight line formed by the four short shafts, and the end parts of three connecting rods hinged with three piston rods in the three-path tube cavity are respectively fixed on the three groups of U-shaped shafts.
In the invention, a mud scraper for scraping mud on the inner wall of the power cavity is sleeved on the piston rod in each pipeline cavity.
In the invention, the piston comprises a piston seat and a rubber sealing gasket, and the rubber sealing gasket is fixed on the piston seat through a gland and a fastening nut.
In the invention, the inner wall of each tube cavity is sleeved with a guide sleeve.
Has the advantages that: the multi-channel pipe cavity is equivalent to the parallel connection of a plurality of slurry pumps, the pistons in the multi-channel pipe cavity are driven by the same crankshaft to reciprocate, and the connecting points of each pipe cavity and the crankshaft are different, so that the pistons in the multi-channel pipe cavity are in different stroke sections when the crankshaft moves, the pipe cavities in different channels are in different pumping and sucking states, the slurry can be uniformly discharged, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the operation of a reciprocating mud pump;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of the piston of the present invention;
FIG. 5 is a schematic structural view of a crankshaft of the present invention;
FIG. 6 is a graph of the instantaneous displacement of the present invention with three lumens;
figure 1 reference numbers: 1. water filter, 2, suction valve, 3, pump cylinder, 4, piston, 5, piston rod, 6, crosshead, 7, connecting rod, 8, crankshaft, 9, crank pin, 10, discharge valve, 11, discharge pipe;
figures 2-5 reference numerals: 1. the pump body, 101, a crankshaft cavity, 2, a power input shaft, 201, a driving gear, 3, a driving lever, 301, a shifting fork, 302, a positioning recess, 303, a steel ball, 304, a compression spring, 305, a stud, 306, a support plate, 4, a crankshaft, 401, a short shaft, 402, a U-shaped shaft, 5, a driven gear, 6, a connecting rod, 601, a pin shaft, 7, a dipstick, 701, an oil drain plug, 8, a pipe cavity, 801, a guide sleeve, 9, a piston, 901, a piston seat, 902, a rubber gasket, 903, a gland, 904, a fastening nut, 10, a piston rod, 11, a slurry discharge pipeline, 12, a slurry suction pipeline, 13, a discharge valve, 14, a suction valve, 15 and a mud scraper.
Detailed Description
In order to make the technical means, the original characteristics, the achieved objects and the beneficial effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
As shown in fig. 2-5, the reciprocating continuous mud pump comprises a pump body 1, a plurality of tube cavities 8 are arranged in the pump body 1 side by side, the tail end of each tube cavity 8 is provided with a mud suction pipeline 12 and a mud discharge pipeline 11, a suction valve 14 and a discharge valve 13 (which are ball valves on reciprocating mud pumps in the prior art) for controlling the on-off of the mud suction pipeline 12 and the mud discharge pipeline 11 are respectively arranged on the mud suction pipeline and the mud discharge pipeline, a piston rod 10 with a piston 9 is respectively arranged in each pipeline 8, and the cavity 8 is divided into a power cavity and a working cavity with constantly changing volume in the process that the piston 9 reciprocates in the cavity 8 along with the piston rod 10, to control the opening and closing of the suction valve 14 and the discharge valve 13 in turn, using the change in air pressure caused by the change in volume of the working chamber, then the mud is sucked into the working cavity through a mud suction pipeline 12 and is discharged through a mud discharge pipeline 11; the other end of the piston rod 10 in each pipe cavity 8 is hinged with the connecting rods 6 through the pin shafts 601 in a one-to-one correspondence mode, and the other ends of all the connecting rods 6 are fixed on different positions of the same crankshaft 4, so that when the crankshaft 4 rotates to a certain position, each connecting rod 6 drives the piston rod 10 to enable the piston 9 to be located at different positions in the pipe cavity 8, and further the slurry suction pipeline 12 and the slurry discharge pipeline 11 of each pipe cavity 8 are opened or closed sequentially.
The above is the basic embodiment of the present invention, and further improvements, optimizations and limitations can be made on the basis of the above:
for example, the crankshaft 4 is driven by the power input shaft 2 to rotate through a power transmission assembly, the power transmission assembly comprises a plurality of driven gears 5 with different tooth numbers, which are arranged on the crankshaft 4, a driving gear 201 arranged on the power input shaft 2 and a shifting lever 3 with a shifting fork 301, and the driving gear 201 is driven by the shifting lever 3 and the shifting fork 301 to be meshed with the different driven gears 5 on the crankshaft 4, so that the rotating speed of the crankshaft 4 is changed, and the flow of the pump is adjusted;
furthermore, the driving gear 201 is a duplicate gear, the number of the driven gears 5 is two, the shift lever 3 is arranged in the holes of the two supporting plates 306 in the pump body 1 in a penetrating manner, one end of the shift lever penetrates through the pump body 1, the shift fork 301 is arranged between the two supporting plates 306, one of the supporting plates 306 is internally provided with a limiting mechanism for clamping the deflector rod 3, the limiting mechanism comprises a cylindrical cavity arranged in the supporting plate 306, the deflector rod 3 passes through the cylindrical cavity, a stud 305 is arranged in the cylindrical cavity, the top end of the stud 305 extends out of the cylindrical cavity and then is fixed by a nut, the bottom end of the stud 305 tightly supports a steel ball 303 on the deflector rod 3 through a compression spring 304, two arc-shaped positioning recesses 302 are arranged on the shifting lever 3, so that when the shifting lever 3 is pulled or pushed to enable the two gears of the duplicate gear to be respectively meshed with the two driven gears 5, the steel ball 303 is abutted in the positioning recess 302 under the action of the compression spring 304 to fix the position of the shift lever 3;
furthermore, the crankshaft 4 and the connecting rods 6 are both positioned in a crankshaft cavity 101 in the pump body 1, an oil measuring ruler 7 for detecting the height of lubricating oil in the crankshaft cavity 101 is arranged on the side wall of the pump body 1, and an oil drain plug 701 for draining redundant lubricating oil in the crankshaft cavity 101 is arranged at the bottommost part of the crankshaft cavity 101;
still further, the tube cavity 8 is three paths, the crankshaft 4 is a bending shaft formed by integrally connecting four short shafts 401 and three groups of U-shaped shafts 402 with the same shape and size end to end, the four short shafts 401 are positioned on the same straight line, the straight lines formed by the three groups of U-shaped shafts 402 surrounding the four short shafts 401 are uniformly distributed, and the end parts of three connecting rods 6 hinged with the three piston rods 10 in the three-path tube cavity 8 are respectively fixed on the three groups of U-shaped shafts 402; at this time, because the three connecting rods mutually form an included angle of 120 degrees, the crankshaft rotates for a circle, and the three tube cavities respectively discharge liquid once, so that three approximate sine curves exist on a flow change curve graph, and the instantaneous flow of the pump is the sum of the ordinate values of the curves at the same moment, as shown in figure 6;
for another example, a mud scraper 15 for scraping mud on the inner wall of the power cavity is sleeved on the piston rod 10 in each tube cavity 8, and the mud scraper 15 is made of rubber;
for another example, the piston 9 includes a piston seat 901 and a rubber gasket 902, and the rubber gasket 902 is fixed on the piston seat 901 through a gland 903 and a fastening nut 904;
for another example, one end of each connecting rod 6 is expanded to form a semicircular ring piece, and the semicircular ring piece and the other semicircular exchanging piece are fixed on the crankshaft 4 through bolt matching;
finally, the inner wall of each tube cavity 8 is sleeved with a guide sleeve 801.
In the invention, a power input shaft 2 drives a driving gear 201 to rotate, the driving gear 201 drives a driven gear 5 to rotate, the driven gear 5 drives a crankshaft 4 to rotate, the crankshaft 4 drives a connecting rod 6 to do reciprocating motion, the connecting rod 6 drives a piston rod 10 to do reciprocating linear motion through a pin shaft 601, the reciprocating linear motion of the piston rod 10 enables the air pressure in a pipe cavity 8 to change, when the piston rod 10 moves towards the left end, the air pressure in the pipe cavity 8 is reduced, the upper end of an exhaust valve 13 is closed due to the action of atmospheric pressure, the lower end of an intake valve 14 enables liquid to jack up a ball valve switch to suck liquid due to the action of atmospheric pressure, the liquid suction process is finished when the piston rod 10 reaches the leftmost end, then the space of the pipe cavity 8 is reduced when the piston rod 10 moves towards the right end, the air pressure is increased, the inlet at the lower end of the intake valve 14 is closed, the reciprocating way is adopted, and the multi-channel tube cavity is used for ensuring that liquid flows out all the time in the working process;
in order to adjust the flow rate of the pump, the driven gear 5 and the driving gear 201 with different tooth numbers are arranged, the driven gear and the driving gear are meshed through the shifting fork 301 to form different transmission ratios, different rotating speeds are output to the crankshaft 4, and therefore the flow rate of the pump is changed.
The principal features, principles and advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to explain the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as expressed in the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A reciprocating continuous mud pump, comprising: the mud pump comprises a pump body (1), a plurality of tube cavities (8) are arranged in the pump body (1) side by side, a mud suction pipeline (12) and a mud discharge pipeline (11) are arranged at the tail end of each tube cavity (8), a suction valve (14) and a discharge valve (13) for controlling the on-off of the slurry suction pipeline (12) and the slurry discharge pipeline (11) are respectively arranged on the slurry suction pipeline and the slurry discharge pipeline, a piston rod (10) with a piston (9) is respectively arranged in each pipeline (8), and the piston (9) divides the pipe cavity (8) into a power cavity and a working cavity with constantly changing volume in the process of reciprocating motion of the piston rod (10) in the pipe cavity (8), so as to control the opening and closing of the suction valve (14) and the discharge valve (13) in turn by using the change in air pressure caused by the change in the volume of the working chamber, then the mud is sucked into the working cavity through a mud suction pipeline (12) and is discharged through a mud discharge pipeline (11); the other end of the piston rod (10) in each pipe cavity (8) is correspondingly hinged with the connecting rods (6) through the pin shafts (601), and the other ends of all the connecting rods (6) are fixed at different positions of the same crankshaft (4), so that when the crankshaft (4) rotates to a certain position, each connecting rod (6) drives the piston rod (10) to enable the piston (9) to be located at different positions in the pipe cavity (8), and further the slurry suction pipeline (12) and the slurry discharge pipeline (11) of each pipe cavity (8) are sequentially opened or closed;
the crankshaft (4) is driven to rotate by the power input shaft (2) through the power transmission assembly, the power transmission assembly comprises a plurality of driven gears (5) with different tooth numbers, which are arranged on the crankshaft (4), a driving gear (201) which is arranged on the power input shaft (2) and a shifting lever (3) with a shifting fork (301), and the driving gear (201) is driven to be meshed with the different driven gears (5) on the crankshaft (4) through the shifting lever (3) and the shifting fork (301) so as to change the rotating speed of the crankshaft (4);
the driving gear (201) is a duplicate gear, the number of the driven gears (5) is two, the shifting lever (3) is arranged in holes on two supporting plates (306) in the pump body (1) in a penetrating manner, one end of the shifting lever penetrates through the pump body (1), the shifting fork (301) is positioned between the two supporting plates (306), a limiting mechanism for clamping the shifting lever (3) is arranged in one supporting plate (306), the limiting mechanism comprises a cylindrical cavity arranged in the supporting plate (306), the shifting lever (3) penetrates through the cylindrical cavity, a stud (305) is arranged in the cylindrical cavity, the top end of the stud (305) extends out of the cylindrical cavity and then is fixed by a nut, the bottom end of the stud (305) abuts against a steel ball (303) on the shifting lever (3) through a compression spring (304), two arc-shaped positioning recesses (302) are arranged on the shifting lever (3) so that the shifting lever (3) is pulled or pushed to enable the two gears of the duplicate gear to be respectively meshed with the two driven gears (5, the steel ball (303) is abutted in the positioning recess (302) under the action of the compression spring (304) to fix the position of the shift lever (3);
the crankshaft (4) and the connecting rods (6) are all positioned in a crankshaft cavity (101) in the pump body (1), a dip rod (7) for detecting the height of lubricating oil in the crankshaft cavity (101) is arranged on the side wall of the pump body (1), and an oil drain plug (701) for draining redundant lubricating oil in the crankshaft cavity (101) is arranged at the bottommost part of the crankshaft cavity (101);
the tube cavities (8) are three paths, the crankshafts (4) are four short shafts (401) and three groups of U-shaped shafts (402) with the same shape and size, the bent shafts are integrally formed in an end-to-end mode, the four short shafts (401) are located on the same straight line, the three groups of U-shaped shafts (402) are uniformly distributed around the straight line formed by the four short shafts (401), and the end parts of three connecting rods (6) hinged with three piston rods (10) in the tube cavities (8) of the three paths are respectively fixed on the three groups of U-shaped shafts (402);
and a mud scraper (15) for scraping mud on the inner wall of the power cavity is sleeved on the piston rod (10) in each tube cavity (8).
2. The reciprocating continuous mud pump of claim 1, wherein: the piston (9) comprises a piston seat (901) and a rubber gasket (902), and the rubber gasket (902) is fixed on the piston seat (901) through a gland (903) and a fastening nut (904).
3. The reciprocating continuous mud pump of claim 1, wherein: the inner wall of each tube cavity (8) is sleeved with a guide sleeve (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693613.1A CN107355359B (en) | 2017-08-14 | 2017-08-14 | Reciprocating continuous mud pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693613.1A CN107355359B (en) | 2017-08-14 | 2017-08-14 | Reciprocating continuous mud pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355359A CN107355359A (en) | 2017-11-17 |
| CN107355359B true CN107355359B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710693613.1A Active CN107355359B (en) | 2017-08-14 | 2017-08-14 | Reciprocating continuous mud pump |
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| CN (1) | CN107355359B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757430A (en) * | 2018-08-16 | 2018-11-06 | 中船勘察设计研究院有限公司 | The leak-proof device of reciprocating pump |
| CN111927730B (en) * | 2020-08-07 | 2022-02-01 | 浙江飞驰机电有限公司 | High-pressure water pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099876U (en) * | 1991-06-29 | 1992-03-25 | 山东省诸城摩托车厂 | Gearshift housing for agricultural tricycle |
| CN2705626Y (en) * | 2004-03-12 | 2005-06-22 | 中国石化集团江汉石油管理局第四机械厂 | Five cylinder mud pump |
| CN201679664U (en) * | 2010-04-22 | 2010-12-22 | 廊坊市雷克工程机械有限公司 | Pump body |
| CN102734108A (en) * | 2012-07-02 | 2012-10-17 | 山东中探机械有限公司 | Four-cylinder slurry pump |
| CN202883284U (en) * | 2012-09-19 | 2013-04-17 | 肖耀 | Multi-cylinder piston pump |
| CN104533773B (en) * | 2014-12-29 | 2016-09-14 | 廊坊市雷克工程机械有限公司 | Slush pump gearshift and slush pump |
| CN207315587U (en) * | 2017-08-14 | 2018-05-04 | 洛阳理工学院 | A kind of reciprocating continuous slush pump |
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2017
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Effective date of registration: 20220901 Address after: 6103 East, 6th Floor, North Building, North District, Hanwei Internet of Things Technology Industrial Park, Wutong Street, High-tech Development Zone, Zhengzhou City, Henan Province, 450001 Patentee after: Zhengzhou Weizan Electronic Technology Co.,Ltd. Address before: 471000 Building 1, Yin Kun science and Technology Park, 8 Fenghua Road, hi tech Zone, Luoyang, Henan Patentee before: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY |
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Effective date of registration: 20220914 Address after: 433100 Qianjiang garden office, Hubei Province, No. 81, Dongjing Avenue Patentee after: QIANJIANG LIANRUI PETROLEUM MACHINERY CO.,LTD. Address before: 6103 East, 6th Floor, North Building, North District, Hanwei Internet of Things Technology Industrial Park, Wutong Street, High-tech Development Zone, Zhengzhou City, Henan Province, 450001 Patentee before: Zhengzhou Weizan Electronic Technology Co.,Ltd. |
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