CN210422904U - Five-cylinder slurry pump power end assembly - Google Patents
Five-cylinder slurry pump power end assembly Download PDFInfo
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- CN210422904U CN210422904U CN201921195605.5U CN201921195605U CN210422904U CN 210422904 U CN210422904 U CN 210422904U CN 201921195605 U CN201921195605 U CN 201921195605U CN 210422904 U CN210422904 U CN 210422904U
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Abstract
The utility model discloses a power end assembly of a five-cylinder slurry pump, which comprises a base, a power output shaft and a crankshaft; a driving gear is arranged on the power output shaft; five groups of eccentric wheels are arranged on the crankshaft, and eccentric bearings and connecting rods are arranged on the eccentric wheels; a fixed block is arranged outside the eccentric bearing; a crankshaft gear hub is arranged on the crankshaft, a crankshaft gear is arranged on the crankshaft gear hub, and the crankshaft gear is meshed with a driving gear on the power output shaft to drive the crankshaft to rotate; the tail end of the connecting rod is provided with a crosshead. The power end assembly of the mud pump of the utility model drives the eccentric wheel to rotate to drive the connecting rod to reciprocate through the gear engagement transmission torque of the power output shaft and the crankshaft; the corresponding baffle of configuration on each bearing of five jar slush pumps and the bearing housing has improved the packaging performance of equipment, simultaneously the utility model discloses a three jars are compared to five jar pumps and more reliable and stable power take off can be provided.
Description
Technical Field
The utility model relates to a slush pump technical field, concretely relates to five jar slush pump power end assemblies.
Background
Mud pumps are machines that deliver a flushing fluid, such as mud or water, into a borehole during drilling. Mud pumps are an important component of drilling equipment.
In conventional positive circulation drilling, a surface flushing medium, clean water, slurry or polymer flushing liquid is directly conveyed to the bottom end of a drill bit through a high-pressure hose, a water tap and a drill string central hole under certain pressure so as to achieve the purposes of cooling the drill bit, removing cut rock debris and conveying the rock debris to the surface.
The conventional slurry pump is of a piston type or a plunger type, a power machine drives a crankshaft of the pump to rotate, and the crankshaft drives the piston or the plunger to reciprocate in a pump cylinder through a crosshead. The purpose of pressure feeding and flushing liquid circulating is realized under the alternate action of the suction valve and the discharge valve.
In the prior art, a large-sized slurry pump generally comprises a hydraulic end and a power end, wherein the hydraulic end is provided with components such as a piston and the like to suck and discharge materials, and the power end is mainly connected with a piston rod to provide power for the hydraulic end.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a five jar slush pump power end assemblies.
In order to achieve the above object, an embodiment of the present invention provides a power end assembly of a five-cylinder mud pump, which includes a machine base, and a power output shaft and a crankshaft disposed on the machine base; a connecting rod driving mechanism is arranged on an eccentric wheel of the crankshaft;
two ends of a power output shaft are arranged on the base through bearings, a driving gear hub is arranged on the power output shaft, and a driving gear is arranged on the driving gear hub;
two ends of the crankshaft are fixed on the base through crankshaft mounting components; the crankshaft mounting assembly comprises a bearing sleeve arranged on the crankshaft, a bearing fixed on the bearing sleeve, a first outer ring baffle and a first inner ring baffle;
the crankshaft is provided with five groups of eccentric wheels, namely a first eccentric wheel, a second eccentric wheel, a third eccentric wheel, a fourth eccentric wheel and a fifth eccentric wheel; the connecting rod driving mechanism on the eccentric wheel comprises an eccentric bearing, an eccentric bearing sleeve and a connecting rod; a fixed block is arranged outside the eccentric bearing; a crankshaft gear hub is arranged on the crankshaft, a crankshaft gear is arranged on the crankshaft gear hub, and the crankshaft gear is meshed with a driving gear on the power output shaft to drive the crankshaft to rotate;
the tail end of the connecting rod is provided with a crosshead; the middle part of the crosshead is provided with a through hole, and a crosshead pin is arranged in the through hole; a crosshead bearing is arranged in a hole at the tail end of the connecting rod and is fixed through a crosshead pin after entering the crosshead; the outer side of the crosshead is provided with a screw hole and an end cover, and the end cover is fixed on the outer side of the crosshead pin through connection of a bolt and the screw hole to be packaged.
In one preferable scheme of the utility model, an outer ring baffle and an inner ring baffle are arranged on a bearing of the power output shaft; five groups of eccentric wheels are arranged on the crankshaft, and the angle difference between adjacent eccentric wheels is 72 degrees.
The utility model discloses one of preferred scheme sets up the screw on the bearing housing of bent axle, and it is porose to correspond the position and set up on first outer lane baffle and the first inner circle baffle, through the bolt fastening in the bearing housing both sides.
The utility model discloses one of preferred scheme disposes drive gear on the power output shaft and is used for the gear engagement with driving motor, disposes drive pulley on perhaps the power output shaft and is used for the belt pulley connection through belt and driving motor.
The utility model discloses one of preferred scheme is provided with two driving gears on the power output shaft, and what correspond on the bent axle is provided with two bent axle gears.
The utility model discloses one of preferred scheme disposes the bearing pad on first outer lane baffle on the bent axle and the first inner circle baffle.
In one preferred scheme of the utility model, the bearing on the crankshaft is a double-row spherical roller bearing; the driving gear hub and the crankshaft gear hub are fixed on the power output shaft or the crankshaft through keys.
In one preferred scheme of the utility model, the middle part of the crankshaft is provided with an intermediate bearing, wherein an intermediate bearing is arranged between the second eccentric wheel and the third eccentric wheel, and an intermediate bearing is arranged between the third eccentric wheel and the fourth eccentric wheel; the intermediate bearing is provided with an intermediate bearing sleeve and intermediate baffles arranged at two sides of the intermediate bearing sleeve.
To sum up, the utility model has the advantages of it is following:
the power end assembly of the mud pump of the utility model drives the eccentric wheel to rotate to drive the connecting rod to reciprocate through the gear engagement transmission torque of the power output shaft and the crankshaft; the corresponding baffle of configuration on each bearing of five jar slush pumps and the bearing housing has improved the packaging performance of equipment, simultaneously the utility model discloses a three jars are compared to five jar pumps and more reliable and stable power take off can be provided.
The connecting rod mechanism of the utility model converts the eccentric rotation of the eccentric wheel on the crankshaft into the reciprocating motion of the crosshead; the transmission crankshaft is formed by assembling and welding a high-strength alloy steel forging and a carbon steel eccentric block, two gear hubs are mounted on the crankshaft, the gear hubs and the crankshaft transmit torque by adopting transmission keys, the gear hubs are connected with the crankshaft by adopting bolts and super nuts, the super nuts have the advantage of accurate pre-tightening, the problem that the bolts are subjected to alternating stress and fatigue failure due to inaccurate pre-tightening of conventional nut connecting bolts is solved, the helical gears suitable for heavy load and high speed are mounted on the gear hubs, the torque is transmitted by the bolts and the keys together through transition fit positioning and reaming holes, and helical teeth matched with the helical gears are arranged on the driving shaft and are used as power output.
The utility model discloses a five jar slush pumps contain five cylinder bodies, compare the three jar slush pumps light in weight of traditional equal power, pressure height, pressure fluctuation are little, the discharge capacity is big, move more reliable and more stable.
Drawings
FIG. 1 is a schematic diagram of an internal structure of a power end assembly according to an embodiment of the present invention;
fig. 2 is a schematic view of the connection between the power output shaft and the crankshaft according to an embodiment of the present invention;
FIG. 3 is an assembly view of a crankshaft according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating an installation of an eccentric wheel on a crankshaft according to an embodiment of the present invention;
fig. 5 is a schematic view of a crosshead according to an embodiment of the present invention;
FIG. 6 is a front cross-sectional view of a connecting rod, crosshead, and piston rod connection in an embodiment of the invention;
fig. 7 is a side cross-sectional view of a connecting rod, crosshead, and piston rod connection in an embodiment of the invention.
101, a machine base; 102. a power take-off shaft; 103. a crankshaft; 104. a drive gear hub; 105. a driving gear; 106. a bearing housing; 107. a bearing; 108. a first outer ring baffle; 109. a first inner ring baffle; 110. an eccentric wheel; 111. a connecting rod; 112. a fixed block; 114. a crankshaft gear hub; 115. a crankshaft gear; 116. a crosshead; 117. a through hole; 118. a crosshead pin; 119. a crosshead bearing; 120. a screw hole; 121. an end cap; 123. a bearing spacer; 124. a middle bearing; 125. a piston rod; 126. a sliding guide sleeve; 127. an eccentric bearing.
Detailed Description
The utility model provides a five jar slush pump power end assemblies, including frame 101 and power output shaft 102 and the bent axle 103 of setting on the frame. The engine base can be in a U-shaped structure, and a semicircular installation slot position is arranged on the engine base and used for installing a bearing sleeve or a bearing. The power output shaft can be a cylinder, two ends of the crankshaft can be cylindrical parts, the middle of the crankshaft can be a crankshaft part, and the crankshaft part is provided with an eccentric wheel 110; the eccentric wheel of the crankshaft is provided with a connecting rod driving mechanism.
The two ends of the power output shaft are mounted on the base through bearings, so that the power output shaft can rotate after being mounted on the base, and the purpose is that the power output shaft can rotate after being assembled with the motor. A driving gear hub 104 is arranged on the power output shaft, and a driving gear 105 is arranged on the driving gear hub; the driving gear is meshed with the crankshaft gear. Specifically, it may be preferable that the power output shaft is provided with a drive gear for meshing with a gear of the drive motor, or the power output shaft is provided with a drive pulley for connecting with a pulley of the drive motor through a belt; so that the motor can drive the power output shaft to rotate in a belt or gear transmission mode.
Preferably, the bearing of the power output shaft is provided with an outer ring baffle and an inner ring baffle; this allows the bearings to be protected and restrained. Two driving gears are arranged on the power output shaft, and two crankshaft gears are correspondingly arranged on the crankshaft.
Two ends of the crankshaft are fixed on the base through crankshaft mounting components; the crankshaft mounting assembly includes a bearing housing 106 mounted on the crankshaft, a bearing 107 fixed to the bearing housing, a first outer ring baffle 108, and a first inner ring baffle 109. In a preferred embodiment, a screw hole is formed in a bearing sleeve of the crankshaft, and holes are formed in corresponding positions of the first outer ring baffle and the first inner ring baffle and fixed on two sides of the bearing sleeve through bolts.
After the two ends of the crankshaft are fixed on the engine base, the crankshaft can rotate through the bearing; specifically, the crankshaft drives the crankshaft gear hub to rotate through the crankshaft gear.
The crankshaft is provided with five groups of eccentric wheels, namely a first eccentric wheel, a second eccentric wheel, a third eccentric wheel, a fourth eccentric wheel and a fifth eccentric wheel; the connecting rod driving mechanism on the eccentric wheel comprises an eccentric bearing 127, an eccentric bearing sleeve and a connecting rod 111; a fixed block 112 is arranged outside the eccentric bearing; the crankshaft is provided with a crankshaft gear hub, a crankshaft gear is arranged on the crankshaft gear hub, and the crankshaft gear is meshed with a driving gear on the power output shaft to drive the crankshaft to rotate.
Five eccentric wheels are provided with five connecting rods, and the five connecting rods are respectively connected with five piston rods to form the five-cylinder slurry pump. The eccentric wheel is provided with an eccentric bearing and a connecting rod arranged on the eccentric bearing; the connecting rod comprises an annular part and a straight rod part; the annular part is sleeved on the periphery of the eccentric bearing, the tail end of the straight rod part is provided with a hole, and the straight rod part is connected with the piston rod 125. In addition, the eccentric bearing outside is configured with the fixed block, can be used for the encapsulation fixed limit bearing.
In order to be engaged with the power output shaft, the crankshaft is provided with a crankshaft gear hub 114, the crankshaft gear hub is provided with a crankshaft gear 115, and the crankshaft gear is engaged with a driving gear on the power output shaft to drive the crankshaft to rotate.
The trailing end of the connecting rod is provided with a cross-head 116 which serves to facilitate connection of the trailing end of the connecting rod to the piston rod. The middle part of the crosshead is provided with a through hole 117 in which a crosshead pin 118 is arranged; a crosshead bearing 119 is arranged in a hole at the tail end of the connecting rod, and the crosshead bearing enters the crosshead and is fixed through a crosshead pin; the outer side of the crosshead is provided with screw holes 120 and an end cap 121, which is fixed to the outer side of the crosshead pin by bolts and screw holes to be sealed. In assembling the slurry pump, the crosshead 116 and piston rod 125 are mounted within a sliding guide housing 126, and the crosshead is movable within the sliding guide housing 126.
In the optimized embodiment of the utility model, the bearing gasket 123 is arranged on the first outer ring baffle and the first inner ring baffle on the crankshaft; the bearing shim functions to improve wear resistance and sealing. The bearing on the crankshaft is a double-row spherical roller bearing; the driving gear hub and the crankshaft gear hub are fixed on the power output shaft or the crankshaft through keys.
The utility model discloses an inner circle baffle and outer lane baffle are the inner circle and the outer lane that act on the bearing, and bearing itself has outer lane and inner circle, consequently inner circle baffle and outer lane baffle encapsulate inner circle and outer lane respectively, reduce in external impurity gets into the bearing.
In the optimized embodiment of the utility model, the middle part of the crankshaft is provided with an intermediate bearing 124, wherein an intermediate bearing is arranged between the second eccentric wheel and the third eccentric wheel, and an intermediate bearing is arranged between the third eccentric wheel and the fourth eccentric wheel; the intermediate bearing is provided with an intermediate bearing sleeve and intermediate baffles arranged at two sides of the intermediate bearing sleeve.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (8)
1. A power end assembly of a five-cylinder slurry pump is characterized by comprising a base, a power output shaft and a crankshaft, wherein the power output shaft and the crankshaft are arranged on the base; a connecting rod driving mechanism is arranged on an eccentric wheel of the crankshaft;
two ends of the power output shaft are arranged on the base through bearings, a driving gear hub is arranged on the power output shaft, and a driving gear is arranged on the driving gear hub;
two ends of the crankshaft are fixed on the base through crankshaft mounting assemblies; the crankshaft mounting assembly comprises a bearing sleeve arranged on the crankshaft, a bearing fixed on the bearing sleeve, a first outer ring baffle and a first inner ring baffle;
the crankshaft is provided with five groups of eccentric wheels, namely a first eccentric wheel, a second eccentric wheel, a third eccentric wheel, a fourth eccentric wheel and a fifth eccentric wheel; the connecting rod driving mechanism on the eccentric wheel comprises an eccentric bearing, an eccentric bearing sleeve and a connecting rod; a fixed block is arranged outside the eccentric bearing; the crankshaft is provided with a crankshaft gear hub, a crankshaft gear is arranged on the crankshaft gear hub, and the crankshaft gear is meshed with a driving gear on the power output shaft to drive the crankshaft to rotate;
the tail end of the connecting rod is provided with a crosshead; the middle part of the crosshead is provided with a through hole, and a crosshead pin is arranged in the through hole; a crosshead bearing is arranged in a hole at the tail end of the connecting rod and is fixed through a crosshead pin after entering the inside of a crosshead; the outer side of the crosshead is provided with a screw hole and an end cover, and the end cover is fixed on the outer side of the crosshead pin through connection of a bolt and the screw hole and is packaged.
2. The five cylinder mud pump power end assembly of claim 1, wherein: an outer ring baffle and an inner ring baffle are arranged on a bearing of the power output shaft; five groups of eccentric wheels are arranged on the crankshaft, and the angle difference between adjacent eccentric wheels is 72 degrees.
3. The five cylinder mud pump power end assembly of claim 1, wherein: a screw hole is formed in a bearing sleeve of the crankshaft, holes are formed in corresponding positions of the first outer ring baffle and the first inner ring baffle, and the first outer ring baffle and the first inner ring baffle are fixed to two sides of the bearing sleeve through bolts.
4. The five cylinder mud pump power end assembly of claim 1, wherein: the power output shaft is provided with a driving gear which is used for being meshed with a gear of the driving motor, or the power output shaft is provided with a driving belt pulley which is used for being connected with a belt pulley of the driving motor through a belt.
5. The five cylinder mud pump power end assembly of claim 1, wherein: two driving gears are arranged on the power output shaft, and two crankshaft gears are correspondingly arranged on the crankshaft.
6. The five cylinder mud pump power end assembly of claim 1, wherein: and bearing gaskets are arranged on the first outer ring baffle and the first inner ring baffle on the crankshaft.
7. The five cylinder mud pump power end assembly of claim 1, wherein: the bearing on the crankshaft is a double-row spherical roller bearing; the driving gear hub and the crankshaft gear hub are fixed on the power output shaft or the crankshaft through keys.
8. The five cylinder mud pump power end assembly of claim 1, wherein: an intermediate bearing is arranged in the middle of the crankshaft, an intermediate bearing is arranged between the second eccentric wheel and the third eccentric wheel, and an intermediate bearing is arranged between the third eccentric wheel and the fourth eccentric wheel; the intermediate bearing is provided with an intermediate bearing sleeve and intermediate baffles arranged at two sides of the intermediate bearing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195605.5U CN210422904U (en) | 2019-07-28 | 2019-07-28 | Five-cylinder slurry pump power end assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195605.5U CN210422904U (en) | 2019-07-28 | 2019-07-28 | Five-cylinder slurry pump power end assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210422904U true CN210422904U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921195605.5U Active CN210422904U (en) | 2019-07-28 | 2019-07-28 | Five-cylinder slurry pump power end assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210422904U (en) |
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2019
- 2019-07-28 CN CN201921195605.5U patent/CN210422904U/en active Active
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