CN112459981A - Slide inclined shaft variable high-pressure plunger pump - Google Patents
Slide inclined shaft variable high-pressure plunger pump Download PDFInfo
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- CN112459981A CN112459981A CN202011366019.XA CN202011366019A CN112459981A CN 112459981 A CN112459981 A CN 112459981A CN 202011366019 A CN202011366019 A CN 202011366019A CN 112459981 A CN112459981 A CN 112459981A
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- piston
- connecting hole
- cylinder body
- bearing shell
- mandril
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
- F04B1/24—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons inclined to the main shaft axis
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
- F04B1/2028—Bearings
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2042—Valves
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to a slide inclined shaft variable high-pressure plunger pump, which comprises a bearing shell, wherein a spline shaft is arranged in the bearing shell, two conical thrust bearings are sleeved outside the spline shaft, a connecting hole is arranged in the middle of one end of the spline shaft, the connecting holes are divided into a three-fork shaft connecting hole I, a mandril connecting hole I and a spring connecting hole from outside to inside, a mandril I is arranged in the mandril connecting hole I, one end of the spring I extends into the groove of the mandril I, a Y-axle is arranged in the Y-axle connecting hole I, the other end of the Y-axle is connected with the cylinder body through a mandril II and a ball ring II, a sealing ring plunger is arranged between the cylinder body and the spline shaft, one end of the cylinder body is provided with an oil distribution disc, the connection part of the bearing shell and the bearing shell is provided with a lining plate, the lining plate is connected with the cylinder body through a lining plate positioning pin, and one end of the bearing shell is connected with a variable mechanism. The invention has the advantages of low noise, light weight, high speed, high pressure, high efficiency, stable and reliable operation, convenient maintenance and safe use.
Description
Technical Field
The invention relates to a pump, in particular to a variable high-pressure plunger pump.
Background
The existing inclined shaft pump (motor) is driven by a cylinder body through a plunger driving shaft or a shaft through a plunger driving cylinder body, so that radial force is completely born by the plunger, and when the plunger moves in a cylinder body hole, the radial force of the plunger in the moving direction of the cylinder body is large, and the plunger is easy to wear on one side, so that the phenomena of cylinder pulling, easy breakage of the plunger and the like are generated. Driven by the plunger, the rigidity requirement on the plunger is very dependent, and the plunger design of all the inclined shaft pumps is heavier, so that the rotating speed of the pump (motor) is improved, noise pollution is caused, and the overall efficiency of the pump is influenced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provide the slide inclined shaft variable high-pressure plunger pump which is low in noise, light in weight, high in speed, high in pressure, high in efficiency, stable and reliable in operation, convenient to maintain and safe to use.
The technical scheme is as follows: in order to solve the technical problem, the slide inclined shaft variable high-pressure plunger pump comprises a bearing shell, a spline shaft is arranged in the bearing shell, two conical thrust bearings are sleeved outside the spline shaft and are divided into a conical thrust bearing I and a conical thrust bearing II, the conical thrust bearings are fixed in the bearing shell, one end of each conical thrust bearing II is connected with the spline shaft through a snap spring I, an oil seal seat is arranged in the bearing shell on one side of the snap spring I, an oil seal is arranged on the oil seal seat, one end of the oil seal seat is connected with the bearing shell through the snap spring II, a sealing ring I is arranged between the other end of the oil seal seat and the bearing shell, one end of the oil seal is connected with the oil seal seat through a snap spring III, a connecting hole is formed in the middle of one end of the spline shaft, and the connecting hole is divided into a three-fork shaft connecting hole, The spring comprises a mandril connecting hole I and a spring connecting hole, wherein a spring I is arranged in the spring connecting hole, a mandril I is arranged in the mandril connecting hole I, one end of the spring I extends into a groove of the mandril I, a three-fork shaft is arranged in the three-fork shaft connecting hole I, one end of the three-fork shaft is connected with the inner wall of the three-fork shaft connecting hole I through a ball ring I, the other end of the three-fork shaft is connected with a cylinder body through a mandril II and a ball ring II, one end of the cylinder body is provided with a three-fork shaft connecting hole II and a mandril connecting hole II, the mandril II is arranged in the mandril connecting hole II, the ball ring II is connected with the inner wall of the three-fork shaft connecting hole II, a sealing ring plunger is arranged between the cylinder body and a spline shaft, one end of the cylinder body is provided with an oil distribution disc, a lining plate is arranged at the joint, the piston is characterized in that a piston pin connecting hole is formed in the disc body, a universal ball ring is arranged in the piston pin connecting hole, a piston pin is arranged in the universal ball ring, an upper limiting screw is arranged on a bearing shell above the cylinder body, a lower limiting screw is arranged on a bearing shell below the cylinder body, one end of the bearing shell is connected with a variable mechanism, the variable mechanism comprises a slideway rear cover, one end of the slideway rear cover is provided with a control valve, the other end of the slideway rear cover is provided with a piston side cover, a sealing ring II is arranged between the slideway rear cover and the piston side cover, a piston is arranged in the slideway rear cover, one end of the piston is provided with a spring seat I, a spring II is arranged between the spring seat I and the control valve, the other end of the piston is provided with a piston sleeve I, a piston oil-through plug is arranged in, piston outside of the inner top of piston side cap is equipped with piston bush II be equipped with sealing washer III between piston bush II and the piston be equipped with sealing washer IV between II and the slide back lid inner wall be equipped with sealing washer V between slide back lid outer wall and the bearing housing terminal surface, the piston is inserted to piston pin one end, is equipped with the jackscrew at this department piston pin lateral part connection, the jackscrew is established in the lower passageway of piston, the disk body is established in the spout of slide back lid lateral wall be equipped with upper end cap and lower end cap on the bearing housing be equipped with the side cap on the piston side cap be equipped with the disk seat end cap on the control valve.
Furthermore, the upper limit screw and the lower limit screw are used for limiting the movement of the cylinder body.
Further, the outer diameter of the conical thrust bearing I is larger than that of the conical thrust bearing II.
Furthermore, one end of the conical thrust bearing I is close to a step I arranged in the bearing shell, the other end of the conical thrust bearing I is close to a step II arranged in the spline shaft, and one end of the conical thrust bearing II is close to a step III arranged in the bearing shell.
Further, the oil distribution disc is of an integral structure.
Furthermore, the Y-axle includes the long axis body both ends all are equipped with the ejector pin connecting hole the long axis body side portion that the ejector pin connecting hole was same one side is equipped with the ball ring connector be equipped with the passageway between the ejector pin connecting hole, long axis body and ball ring connector integrated into one piece.
Further, the control valve includes a solenoid valve and a pilot operated valve.
Furthermore, the universal ball ring comprises a ball ring III, a universal ball is arranged in the ball ring III, and the outer side of the ball ring III is arranged in the piston pin connecting hole through an elastic check ring.
Further, the variable range of the variable mechanism is +/-15 degrees, and the maximum pressure reaches 45 MPa.
Further, the maximum rotating speed of the spline shaft reaches 5400 r/min.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the invention has reasonable integral structure arrangement, two conical thrust bearings are arranged in the bearing shell, the conical thrust bearings are adjusted and fixed by the clamp spring and the gasket, the conical thrust bearings fix the spline shaft in a forward direction and a reverse direction to prevent shaking and moving, the spline shaft is connected with the cylinder body through the three-fork shaft, radial force is completely born by the three-fork shaft, the plunger only needs to bear the force generated by oil absorption and oil pressing, the torsion of the plunger is greatly reduced, the plunger can be changed into a light-running seal ring plunger from a previous heavy connecting rod plunger, the plunger can be prevented from being burnt when in high-speed running, the rotating speed of the pump is doubled, the noise is low, thereby achieving the effects of high efficiency and prolonging the service life of the plunger, the weight of the pump is also reduced, the oil distribution disc is connected with the cylinder body through the needle roller bearing, not only the mutual friction force is effectively reduced, but also the support performance is good, the oil distribution disc, the use is more stable and efficient, the double-metal wear-resistant lining plate can not move in a crossing way, meanwhile, the joint of the oil distribution plate and the cylinder body is provided with the double-metal wear-resistant lining plate, the wear-resistant performance of the joint is effectively improved, the bearing shell above the cylinder body is provided with the upper limiting screw, the bearing shell below the cylinder body is provided with the lower limiting screw, the upper limiting screw and the lower limiting screw are used for limiting the movement of the cylinder body, the oil distribution plate is connected with a piston in a variable mechanism through a piston pin, the variable mechanism controls the oil distribution plate to move on a chute so as to change the size of an included angle between the cylinder body and a plunger to achieve the variable purpose, the variable range can reach +/-15 degrees and the maximum pressure reaches 45MPa, the piston is driven by the piston pin to work, one end of the piston is provided with a piston sleeve I, the outer wall, a sealing ring IV is arranged between a piston sleeve II and the inner wall of a slide rear cover, a sealing ring V is arranged between the outer wall of the slide rear cover and the end surface of a bearing shell, the efficient work of a piston is ensured, the sealing performance is good, a universal ball ring is arranged at the joint of a piston pin and an oil distribution disc, the traditional line friction is changed into surface friction, the ball ring III and the universal ball are fixed by an elastic check ring for holes in the disc, the use is flexible, the service life is long, a variable mechanism is connected with a control valve, the control valve can use an electromagnetic valve or a hydraulic control valve, the flow can be controlled electrically or hydraulically, the use is reliable, the integral operation of the product is stable and reliable, the speed is high, the highest rotating speed of the spline shaft reaches 5400 r/min, the maintenance is convenient, the service.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing a connecting structure of an oil distribution pan, a cylinder body and a spline shaft in the present invention;
FIG. 3 is a schematic view of the construction of the spider of the present invention;
FIG. 4 is a schematic view showing a connecting structure of an oil distribution pan, a universal ball ring and a piston pin according to the present invention;
FIG. 5 is a schematic view showing a connecting structure of a variable displacement mechanism and a piston pin according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, 2, 3, 4 and 5, the variable displacement high pressure plunger pump with a slide inclined shaft according to the present invention comprises a bearing housing 1, a spline shaft 2 is disposed in the bearing housing 1, two tapered thrust bearings are sleeved outside the spline shaft 2, and are divided into a tapered thrust bearing i 3 and a tapered thrust bearing ii 4, an outer diameter of the tapered thrust bearing i 3 is larger than an outer diameter of the tapered thrust bearing ii 4, the tapered thrust bearings are fixed in the bearing housing 1, one end of the tapered thrust bearing i 3 abuts against a step i 54 in the bearing housing 1, the other end of the tapered thrust bearing i 3 abuts against a step ii 55 in the spline shaft 2, one end of the tapered thrust bearing ii 4 abuts against a step iii 56 in the bearing housing 1, one end of the tapered thrust bearing ii 4 is connected to the spline shaft 2 through a snap spring i 5, an oil seal 6 is disposed in the bearing housing 1 on one side of the snap spring i 5, the oil seal structure is characterized in that an oil seal 7 is arranged on the oil seal seat 6, one end of the oil seal seat 6 is connected with the bearing shell 1 through a clamp spring II 8, a sealing ring I9 is arranged between the other end of the oil seal seat 6 and the bearing shell 1, one end of the oil seal 7 is connected with the oil seal seat 6 through a clamp spring III 10, a connecting hole is formed in the middle of one end of the spline shaft 2 and is divided into a three-fork shaft connecting hole I11, a mandril connecting hole I12 and a spring connecting hole 13 from outside to inside, a spring I14 is arranged in the spring connecting hole 13, a mandril I15 is arranged in the mandril connecting hole I12, one end of the spring I14 extends into a groove of the mandril I15, a three-fork shaft 16 is arranged in the three-fork shaft connecting hole I11, the three-fork shaft 16 comprises a long shaft body 57, mandril connecting holes 58 are formed in two ends of the long, a channel is arranged between the mandril connecting holes 58, the long shaft body 57 and the ball ring connecting body 59 are integrally formed, one end of the trike shaft 16 is connected with the inner wall of a trike shaft connecting hole I11 through a ball ring I17, the other end of the trike shaft 16 is connected with the cylinder body 20 through a mandril II 18 and a ball ring II 19, one end of the cylinder body 20 is provided with a trike shaft connecting hole II 21 and a mandril connecting hole II 22, the mandril II 18 is arranged in the mandril connecting hole II 22, the ball ring II 19 is connected with the inner wall of the trike shaft connecting hole II 21, a sealing ring plunger 23 is arranged between the cylinder body 20 and the spline shaft 2, one end of the cylinder body 20 is provided with an oil distribution disc, a lining plate 24 is arranged at the joint of the trike shaft connecting hole II 21, the lining plate 24 is connected with the cylinder body 20 through a lining plate positioning pin 25, the oil distribution disc is of an integral structure, the oil distribution, a piston pin connecting hole 30 is arranged on the disc body 26, a universal ball ring is arranged in the piston pin connecting hole 30, a piston pin 31 is arranged in the universal ball ring, the universal ball ring comprises a ball ring III 60, a universal ball 61 is arranged in the ball ring III 60, the outer side of the ball ring III 60 is arranged in the piston pin connecting hole 30 through a flexible retainer ring 62, an upper limiting screw 32 is arranged on the bearing housing 1 above the cylinder body 20, a lower limiting screw 33 is arranged on the bearing housing 1 below the cylinder body 20, the upper limiting screw 32 and the lower limiting screw 33 are used for limiting the movement of the cylinder body 20, one end of the bearing housing 1 is connected with a variable mechanism, the variable mechanism comprises a slideway rear cover 34, one end of the slideway rear cover 34 is provided with a control valve 35, the other end of the slideway rear cover is provided with a piston side cover 36, and a sealing ring II 37 is arranged between the slideway rear, a piston 38 is arranged in the slideway rear cover 34, a spring seat I39 is arranged at one end of the piston 38, a spring II 40 is arranged between the spring seat I39 and the control valve 35, a piston sleeve I41 is arranged at the other end of the piston 38, a piston oil through plug 42 is arranged in the piston sleeve I41, a piston sealing ring 43 is arranged on the outer wall of the piston sleeve I41, a piston sleeve II 44 is arranged on the outer part of the piston 38 above the inner end of the piston side cover 36, a sealing ring III 45 is arranged between the piston sleeve II 44 and the piston 38, a sealing ring IV 46 is arranged between the piston sleeve II 44 and the inner wall of the slideway rear cover 34, a sealing ring V47 is arranged between the outer wall of the slideway rear cover 34 and the end surface of the bearing shell 1, one end of the piston 31 is inserted into the piston 38, a piston top wire 48 is connected to the side part 31 of the piston pin, and the piston top wire, the disc body 26 is arranged in a sliding groove 49 in the side wall of the slideway rear cover 34, an upper plug 50 and a lower plug 51 are arranged on the bearing shell 1, a side cover plug 52 is arranged on the piston side cover 36, a valve seat plug 53 is arranged on the control valve 35, the variable range of the variable mechanism is +/-15 degrees, the maximum pressure reaches 45MPa, and the maximum rotating speed of the spline shaft 2 reaches 5400 r/min.
The invention has reasonable integral structure arrangement, two conical thrust bearings are arranged in the bearing shell, the conical thrust bearings are adjusted and fixed by the clamp spring and the gasket, the conical thrust bearings fix the spline shaft in a forward direction and a reverse direction to prevent shaking and moving, the spline shaft is connected with the cylinder body through the three-fork shaft, radial force is completely born by the three-fork shaft, the plunger only needs to bear the force generated by oil absorption and oil pressing, the torsion of the plunger is greatly reduced, the plunger can be changed into a light-running seal ring plunger from a previous heavy connecting rod plunger, the plunger can be prevented from being burnt when in high-speed running, the rotating speed of the pump is doubled, the noise is low, thereby achieving the effects of high efficiency and prolonging the service life of the plunger, the weight of the pump is also reduced, the oil distribution disc is connected with the cylinder body through the needle roller bearing, not only the mutual friction force is effectively reduced, but also the support performance is good, the oil distribution disc, the use is more stable and efficient, the double-metal wear-resistant lining plate can not move in a crossing way, meanwhile, the joint of the oil distribution plate and the cylinder body is provided with the double-metal wear-resistant lining plate, the wear-resistant performance of the joint is effectively improved, the bearing shell above the cylinder body is provided with the upper limiting screw, the bearing shell below the cylinder body is provided with the lower limiting screw, the upper limiting screw and the lower limiting screw are used for limiting the movement of the cylinder body, the oil distribution plate is connected with a piston in a variable mechanism through a piston pin, the variable mechanism controls the oil distribution plate to move on a chute so as to change the size of an included angle between the cylinder body and a plunger to achieve the variable purpose, the variable range can reach +/-15 degrees and the maximum pressure reaches 45MPa, the piston is driven by the piston pin to work, one end of the piston is provided with a piston sleeve I, the outer wall, a sealing ring IV is arranged between a piston sleeve II and the inner wall of a slide rear cover, a sealing ring V is arranged between the outer wall of the slide rear cover and the end surface of a bearing shell, the efficient work of a piston is ensured, the sealing performance is good, a universal ball ring is arranged at the joint of a piston pin and an oil distribution disc, the traditional line friction is changed into surface friction, the ball ring III and the universal ball are fixed by an elastic check ring for holes in the disc, the use is flexible, the service life is long, a variable mechanism is connected with a control valve, the control valve can use an electromagnetic valve or a hydraulic control valve, the flow can be controlled electrically or hydraulically, the use is reliable, the integral operation of the product is stable and reliable, the speed is high, the highest rotating speed of the spline shaft reaches 5400 r/min, the maintenance is convenient, the service.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (10)
1. The utility model provides a slide inclined axis variable high pressure plunger pump which characterized in that: the bearing comprises a bearing shell (1), wherein a spline shaft (2) is arranged in the bearing shell (1), two conical thrust bearings are arranged outside the spline shaft (2) in a sleeved mode and are divided into a conical thrust bearing I (3) and a conical thrust bearing II (4), the conical thrust bearings are fixed in the bearing shell (1), one end of each conical thrust bearing II (4) is connected with the spline shaft (2) through a clamp spring I (5), an oil seal seat (6) is arranged in the bearing shell (1) on one side of the clamp spring I (5), an oil seal (7) is arranged on the oil seal seat (6), one end of the oil seal seat (6) is connected with the bearing shell (1) through a clamp spring II (8), a seal ring I (9) is arranged between the other end of the oil seal seat (6) and the bearing shell (1), one end of the oil seal (7) is connected with the oil seal seat (6) through a clamp spring III (10), the middle part of one end of the spline shaft (2) is provided with a connecting hole, the connecting hole is divided into a three-fork shaft connecting hole I (11), a mandril connecting hole I (12) and a spring connecting hole (13) from outside to inside, a spring I (14) is arranged in the spring connecting hole (13), a mandril I (15) is arranged in the mandril connecting hole I (12), one end of the spring I (14) extends into a groove of the mandril I (15), a three-fork shaft (16) is arranged in the three-fork shaft connecting hole I (11), one end of the three-fork shaft (16) is connected with the inner wall of the three-fork shaft connecting hole I (11) through a ball ring I (17), the other end of the three-fork shaft (16) is connected with a cylinder body (20) through a mandril II (18) and a ball ring II (19), one end of the cylinder body (20) is provided with a three-fork shaft connecting hole II (21) and a mandril connecting hole II (22), the ball ring II (19) is connected with the inner wall of a Y-axis connecting hole II (21), a sealing ring plunger (23) is arranged between the cylinder body (20) and the spline shaft (2), an oil distribution disc is arranged at one end of the cylinder body (20), a lining plate (24) is arranged at the joint of the cylinder body and the spline shaft, the lining plate (24) is connected with the cylinder body (20) through a lining plate positioning pin (25), the oil distribution disc comprises a disc body (26) and a connecting body (27), one end of the connecting body (27) is arranged in a connecting body mounting hole (29) of the cylinder body (20) through a needle bearing (28), a piston pin connecting hole (30) is arranged on the disc body (26), a universal ball ring is arranged in the piston pin connecting hole (30), a piston pin (31) is arranged in the universal ball ring, an upper limiting screw (32) is arranged on a bearing shell (1) above the cylinder body (20), and a lower limiting screw (33) is, bearing housing (1) one end is connected and is equipped with variable mechanism, variable mechanism includes slide back cover (34) lid (34) one end is equipped with control valve (35) behind the slide, and the other end is equipped with piston side cap (36) be equipped with sealing washer II (37) behind the slide between lid (34) and piston side cap (36) be equipped with piston (38) in lid (34) behind the slide be equipped with piston (38) in piston (38) one end is equipped with spring seat I (39), be equipped with spring II (40) between spring seat I (39) and control valve (35), be equipped with piston cover I (41) at the piston (38) other end, be equipped with piston oil end cap (42) in piston cover I (41), be equipped with piston sealing ring (43) piston cover I (41) outer wall be equipped with piston cover II (44) in piston (38) the inner top of piston side cap (36) outside, be equipped with between piston bush II (44) and piston (38) sealing washer III (45), be equipped with between piston bush II (44) and slide back cover (34) inner wall sealing washer IV (46), be equipped with between slide back cover (34) outer wall and bearing housing (1) terminal surface sealing washer V (47), piston pin (31) one end is inserted piston (38), and there is piston jackscrew (48) piston jackscrew (31) lateral part connection, piston jackscrew (48) are established in the lower passageway of piston (38), disk body (26) are established in spout (49) of slide back cover (34) lateral wall bearing housing (1) are equipped with top end cap (50) and lower end cap (51), be equipped with side cap end cap (52) on piston side cap (36), be equipped with valve seat end cap (53) on control valve (35).
2. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the upper limit screw (32) and the lower limit screw (33) are used for limiting the movement of the cylinder body (20).
3. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the outer diameter of the conical thrust bearing I (3) is larger than that of the conical thrust bearing II (4).
4. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: one end of the conical thrust bearing I (3) is close to a step I (54) arranged in the bearing shell (1), the other end of the conical thrust bearing I (3) is close to a step II (55) arranged in the spline shaft (2), and one end of the conical thrust bearing II (4) is close to a step III (56) arranged in the bearing shell (1).
5. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the oil distribution disc is of an integral structure.
6. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the Y-axle (16) comprises a long axle body (57), ejector rod connecting holes (58) are formed in two ends of the long axle body (57), ball ring connecting bodies (59) are arranged on the side portions, on the same side of the ejector rod connecting holes (58), of the long axle body (57), a channel is formed between the ejector rod connecting holes (58), and the long axle body (57) and the ball ring connecting bodies (59) are integrally formed.
7. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the control valve (35) comprises an electromagnetic valve and a hydraulic control valve.
8. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the universal ball ring comprises a ball ring III (60), a universal ball (61) is arranged in the ball ring III (60), and the outer side of the ball ring III (60) is arranged in the piston pin connecting hole (30) through a circlip (62).
9. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the variable range of the variable mechanism is +/-15 degrees, and the maximum pressure reaches 45 MPa.
10. The slide inclined-axis variable high-pressure plunger pump according to claim 1, characterized in that: the maximum rotating speed of the spline shaft (2) reaches 5400 r/min.
Priority Applications (1)
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| CN202011366019.XA CN112459981A (en) | 2020-11-29 | 2020-11-29 | Slide inclined shaft variable high-pressure plunger pump |
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| CN202011366019.XA CN112459981A (en) | 2020-11-29 | 2020-11-29 | Slide inclined shaft variable high-pressure plunger pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389718A (en) * | 2021-07-27 | 2021-09-14 | 东莞市三惠机械有限公司 | Hydraulic pump oil distribution shell assembly with gasket |
| CN114001005A (en) * | 2021-11-02 | 2022-02-01 | 河南科技大学 | Hydraulic plunger pump |
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| CN114001005A (en) * | 2021-11-02 | 2022-02-01 | 河南科技大学 | Hydraulic plunger pump |
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