CN211116858U

CN211116858U - Novel hydraulic pressure booster

Info

Publication number: CN211116858U
Application number: CN201922175553.1U
Authority: CN
Inventors: 李天宇
Original assignee: China Pump Wuxi Fluid Equipment Co ltd
Current assignee: China Pump Wuxi Fluid Equipment Co ltd
Priority date: 2019-12-08
Filing date: 2019-12-08
Publication date: 2020-07-28
Anticipated expiration: 2029-12-08

Abstract

The utility model discloses a novel hydraulic pressure booster, including radial right oil duct, axial left oil duct, low pressure oil pocket, radial left oil duct, high pressure oil pocket, oil inlet, oil-out, unidirectional check valve under the right side, the one-way check valve of upper right side, square stereoplasm water-fast sealing washer, downdraft cavity, oil valve casing, central oil valve, oil valve jar, unidirectional check valve under a left side, the one-way check valve of upper left side, first pump end body, second pump end body, oil valve core. The utility model discloses a through being provided with central fuel tap, oil valve core, fuel tap jar and oil valve shell for according to the design requirement under the state that does not need external force in the motion state that free piston reciprocating mechanism is different, can shift to different positions, control is by piston reciprocating mechanism's direction of motion, and opens the hollow hole from the tip in the middle of left piston and the right piston, and the tip is flat with cold welding technique rewelding, the frictional force that produces during reducible free piston reciprocating mechanism motion.

Description

Novel hydraulic pressure booster

Technical Field

The utility model relates to a hydraulic pressure booster technical field, in particular to novel hydraulic pressure booster.

Background

At present, a hydraulic system is utilized for pressurizing to obtain high-pressure fluid, the hydraulic system is used for driving a hydraulic motor most commonly, the hydraulic motor acts on a crankshaft connecting rod to enable a plunger to reciprocate, the structure is complex, the size is large, a plurality of moving mechanical parts are easy to damage, the maintenance cost is high, and a hydraulic pressurizer which can realize self-lubrication and is low in wear rate and convenient to maintain is urgently needed to be connected into the hydraulic system.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a novel hydraulic supercharger, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel hydraulic supercharger comprises a radial right oil duct, an axial left oil duct, a low-pressure oil chamber, a radial left oil duct, a high-pressure oil chamber, an oil inlet, an oil outlet, an upper right one-way check valve, a lower right one-way check valve, a square hard waterproof sealing ring, a lower suction cavity, an oil valve shell, a central oil valve, an oil valve cylinder, a lower left one-way check valve, an upper left one-way check valve, a first pump end body, a second pump end body, an oil valve core, an upper row of cavity bodies, a left piston, an upper left one-way check valve, a combined sealing ring, a right piston, a second pump end body, a first inner hexagonal plug, a pressure gauge, a water outlet, a first inner hexagonal bolt, a second inner hexagonal plug, a third inner hexagonal plug, a second inner hexagonal bolt, a leakage observation hole, a water inlet, a PT oil valve with a third inner hexagonal bolt, a fourth inner hexagonal plug, a fourth inner hexagonal bolt and a free piston reciprocating mechanism, the free piston reciprocating mechanism comprises a central oil valve, an oil valve core, an oil valve cylinder and an oil valve shell, wherein a left piston and a right piston are connected to two ends of the free piston reciprocating mechanism through threads, the oil valve core is arranged in the middle of the central oil valve, a feeding sealing ring is arranged in the middle of the oil valve cylinder and the oil valve shell, an oil inlet and an oil outlet are arranged in the middle of the oil valve shell, the oil valve shell is communicated with the central oil valve, an upper right one-way check valve and an upper left one-way check valve are arranged at two ends of the top ends of a first pump end body and a second pump end body, the first pump end body and the second pump end body are respectively communicated with an upper row cavity body through the upper right one-way check valve and the upper left one-way check valve, a lower right one-way check valve and a lower left one-way check valve are arranged at two ends of the bottom ends of the first pump end body and the second pump end body and are communicated with a lower suction cavity body, and the first pump end body and the second pump end body are fixedly connected through, the upper-row cavity body, the lower-suction cavity body, the second pump end body and the first pump end body are fixed through eight first inner hexagonal bolts and eight second inner hexagonal bolts, left pistons and right pistons at two ends of the free piston reciprocating mechanism can be displaced to different positions in different motion states without external force according to design requirements, the motion direction of the piston reciprocating mechanism is controlled, the left pistons and the right pistons at two ends of the free piston reciprocating mechanism can be displaced to different positions in different motion states without external force according to design requirements, the motion direction of the piston reciprocating mechanism is controlled, the one-way check valve comprises a valve body, a valve cover, a valve core and a return spring, a central oil valve reciprocates back and forth in an inner cavity of a valve shell combined mechanism of an oil valve cylinder and oil, the oil valve shell is provided with an oil inlet and an oil outlet and the central oil valve, the radial right oil duct, the axial left oil duct and the radial left oil duct are communicated.

Furthermore, a combined sealing ring and a wear-resistant ring are arranged in the first pump end body, the second pump end body and the piston of the free piston reciprocating mechanism, a through hole is formed in the middle of the combined sealing ring, and the first pump end body and the second pump end body are connected with the upper row of cavities and the lower suction cavity and matched with the left piston and the right piston of the free piston reciprocating mechanism.

Furthermore, the oil valve core consists of an oil valve body and an oil valve cover, the oil valve body and the oil valve cover on the oil valve core are in right-angle positioning fit, the oil valve body and the oil valve cover on the oil valve core are in threaded connection, and the diameter is slightly larger than the diameter of a thread through the right-angle positioning fit to form a positioning shoulder, so that the stress of the threaded connection part is reduced.

Furthermore, the diameters of the left piston and the right piston are 10-200mm, hollow holes are formed in the middle of the left piston and the right piston, and the size ratio between the outer diameter of the left piston and the outer diameter of the right piston and the maximum outer diameter of the central oil valve is 0.1-15 times.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1): the utility model is provided with the central oil valve, the oil valve core, the oil valve cylinder and the oil valve shell, so that the free piston reciprocating mechanism can be shifted to different positions according to the design requirements in different motion states without external force, the motion direction of the piston reciprocating mechanism is controlled, a hollow hole is formed in the middle of the left piston and the right piston from the end part, the end part is welded by a cold welding technology and is leveled, the friction force generated when the free piston reciprocating mechanism moves can be reduced, the efficiency of the hydraulic supercharger is further improved, and the service life of the sealing ring is further prolonged;

(2): according to the utility model, the first pump end body, the second pump end body, the combined sealing ring, the left piston and the right piston are arranged, hydraulic oil at the central oil valve, pressurized fluid media in the first pump end body and the second pump end body can be effectively sealed through four combined sealing rings, and the middle part of the combined sealing ring is provided with the through hole, so that the sealing effect and the leakage condition of the media at two sides can be conveniently observed;

(3): the utility model discloses a be provided with oil valve core, through threaded connection's oil valve body and oil valve lid and be right angle location fit between the two, can guarantee the smooth motion of oil valve core, because right angle location fit diameter ratio threaded diameter is slightly bigger, forms the location shoulder, reduces the atress at threaded connection position.

Drawings

Fig. 1 is a schematic sectional structure view of a front view of the present invention.

Fig. 2 is a schematic structural view of the leftward movement of the free piston reciprocating mechanism of the present invention.

Fig. 3 is a schematic diagram of the structure of the free piston reciprocating mechanism of the present invention moving to the right.

Fig. 4 is a schematic view of the overall appearance structure of the present invention.

In the figure: A. a radial right oil duct; B. an axial right oil passage; C. an axial left oil passage; D. a low pressure oil chamber; E. a radial left oil passage; G. a high pressure oil chamber; p, an oil inlet; t, an oil outlet; 1. a lower right one-way check valve; 2. a square hard waterproof sealing ring; 3. a downdraft cavity; 4. an oil valve housing; 5. a central oil valve; 6. an oil valve cylinder; 7. a lower left one-way check valve; 8. an upper right one-way check valve; 9. a first pump end body; 10. an oil valve core; 13. an upper row of cavities; 14. a left piston; 15. an upper left one-way check valve; 16. a combined sealing ring; 17. a right piston; 18. a second pump end body; 21. a first inner hexagonal plug; 22. a pressure gauge; 23. a water outlet; 25. a first hexagon socket head cap screw; 26. a second inner hexagonal plug; 27. a third inner hexagonal plug; 28. a second hexagon socket screw; 29. a leak sight hole; 30. a water inlet; 31. a PT port oil valve; 32. a third hexagon socket screw; 33. a fourth inner hexagonal plug; 34. and a fourth hexagon socket screw.

Detailed Description

Technical means for realizing the utility model; authoring features; the purpose and function are easily understood and appreciated, and the present invention will be further described with reference to the following detailed description.

As shown in the figures 1-4, a novel hydraulic supercharger comprises a radial right oil duct A, an axial right oil duct B, an axial left oil duct C, a low-pressure oil chamber D, a radial left oil duct E, a high-pressure oil chamber G, an oil inlet P, an oil outlet T, a right lower one-way check valve 1, a square hard waterproof sealing ring 2, a lower suction cavity 3, an oil valve shell 4, a central oil valve 5, an oil valve cylinder 6, a left lower one-way check valve 7, a right upper one-way check valve 8, a first pump end body 9, an oil valve core 10, an upper row of cavity 13, a left piston 14, an upper left one-way check valve 15, a combined sealing ring 16, a right piston 17, a second pump end body 18, a first inner hexagonal plug 21, a pressure gauge 22, a water outlet 23, a first inner hexagonal bolt 25, a second inner hexagonal plug 26, a third inner hexagonal plug 27, a second inner hexagonal bolt 28, a leakage observation hole 29, a water inlet 30, a PT port 31, a PT port oil valve 31, A third inner hexagonal bolt 32, a fourth inner hexagonal plug 33, a fourth inner hexagonal bolt 34 and a free piston reciprocating mechanism, wherein the free piston reciprocating mechanism comprises a central oil valve 5, an oil valve core 10, an oil valve cylinder 6 and an oil valve shell 4, two ends of the free piston reciprocating mechanism are connected with a left piston 14 and a right piston 17 through threads, the oil valve core 10 is arranged in the middle of the central oil valve 5, the middle parts of the oil valve cylinder 6 and the oil valve shell 4 are provided with a feed seal ring, the middle part of the oil valve shell 4 is provided with an oil inlet P and an oil outlet T, the oil valve shell 4 is communicated with the central oil valve 5, two ends of the top ends of the first pump end body 9 and the second pump end body 18 are provided with an upper right one-way check valve 8 and an upper left one-way check valve 15, the first pump end body 9 and the second pump end body 18 are communicated with the upper discharge cavity 13 through the upper right one-way check valve 8 and the upper left one-way check valve 15 respectively, the two ends of the bottom ends of the first pump end body 9 and the second pump end body 18 are provided with a right lower one-way check valve 1 and a left lower one-way check valve 7 which are communicated with the lower suction cavity 3, the first pump end body 9 and the second pump end body 18 are fixedly connected through eight fourth hexagon socket head cap bolts 34, the upper row cavity 13, the lower suction cavity 3, the second pump end body 18 and the first pump end body 9 are fixed through eight first hexagon socket head cap bolts 25 and eight second hexagon socket head cap bolts 28, the left piston 14 and the right piston 17 at the two ends of the free piston reciprocating mechanism can be displaced to different positions in different motion states without external force according to the design requirements, the motion direction of the piston reciprocating mechanism is controlled, the one-way check valve comprises a valve body, a valve cover, a valve core and a reset spring, the central oil valve 5 reciprocates in the combined mechanism cavity of the oil valve cylinder 6 and the oil valve shell 4, the oil valve shell 4 is provided with an oil inlet P and an oil outlet T, and is communicated with the central oil valve 5, the radial right oil duct A, the axial right oil duct B, the axial left oil duct C and the radial left oil duct E.

The first pump end body 9, the second pump end body 18 and the pistons of the free piston reciprocating mechanism are provided with a combined sealing ring 16 and a wear-resisting ring, the middle part of the combined sealing ring 16 is provided with a through hole, and the first pump end body 9 and the second pump end body 18 are connected with the upper row cavity 13 and the lower suction cavity 3 and matched with the left piston 14 and the right piston 17 of the free piston reciprocating mechanism.

The oil valve core 10 consists of an oil valve body and an oil valve cover, the oil valve body and the oil valve cover on the oil valve core 10 are in right-angle positioning fit, the oil valve body and the oil valve cover on the oil valve core 10 are in threaded connection, and the diameter is slightly larger than the diameter of a thread through the right-angle positioning fit to form a positioning shoulder, so that the stress of the threaded connection part is reduced.

The diameters of the left piston 14 and the right piston 17 are 10-200mm, hollow holes are formed in the middle of the left piston 14 and the right piston 17, the size ratio between the outer diameters of the left piston 14 and the right piston 17 and the maximum outer diameter of the central oil valve 5 is 0.1-15 times, the hollow holes are formed in the middle of the left piston 14 and the right piston 17 from the end portions, the end portions are welded by a cold welding technology to be flat, friction force generated when a free piston reciprocating mechanism moves can be reduced, the efficiency of a hydraulic pressure booster is further improved, and the service life of a sealing ring is further prolonged.

It should be noted that, in the use process of the novel hydraulic supercharger, firstly, the first pump end body 9 and the second pump end body 18 are connected and fixed by eight fourth hexagon socket head cap bolts 34, the upper row of cavity body 13, the lower suction cavity body 3, the second pump end body 18 and the first pump end body 9 are fixed by eight first hexagon socket head cap bolts 25 and eight second hexagon socket head cap bolts 28, the first pump end body 9 and the second pump end body 18 are provided with the leakage observation hole 29, the pressure gauge 22 is arranged inside the upper row of cavity body 13, the water outlet 23 is blocked by the first hexagon socket head cap 21 and the second hexagon socket head cap 26, which is convenient for disassembly, the water outlet 23 is used, the two ends of the lower suction cavity body 3 are blocked by the third hexagon socket head cap 27 and the fourth hexagon socket head cap 33, which is convenient for disassembly and is used as a water suction port, when the free piston reciprocating mechanism moves left, hydraulic oil enters from the oil inlet P, flows to an axial right oil duct B through a radial right oil duct A of a central oil valve 5 through an oil valve shell 4 and an oil valve cylinder 6, enters a high-pressure oil chamber G, flows out of the low-pressure oil chamber D through an oil outlet T, moves leftwards through a left piston 14 and a right piston 17, closes a right upper one-way check valve 8 and a left lower one-way check valve 7, opens a right lower one-way check valve 1 and a left upper one-way check valve 15, a pressurized medium is sucked into a first pump end body 9 from a lower suction cavity body 3 through the right lower one-way check valve 1, is discharged into an upper discharge cavity body 13 from a second pump end body 18 through the left upper one-way check valve 15, when a free piston reciprocating mechanism moves rightwards, hydraulic oil enters from an oil inlet P, flows to the radial right oil duct A of the central oil valve 5 through the oil valve shell 4 and the oil valve cylinder 6, flows to the axial left oil duct E from the high-pressure oil duct G and the axial left oil duct E through the right oil duct B of the oil chamber, the left piston 14 and the right piston 17 move rightwards, the one-way check valve 1 and the one-way check valve 15 of upper left are closed down in the right side, the one-way check valve 7 of lower left and the one-way check valve 8 of upper right are opened, in the one-way check valve 7 inhales the second pump end body 18 through the one-way check valve 7 of lower left in inhaling cavity 3 from the lower by the medium of pressure boost, in discharging cavity 13 on the row from first pump end body 9 through the one-way check valve 15 of upper left, through the speed of free piston reciprocating mechanism switching-over, make this utility model frequency of operation in a reasonable within range, in order to obtain lasting stable high pressure medium.

The basic principles and the main features of the invention and the 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 above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A novel hydraulic supercharger comprises a radial right oil duct (A), an axial right oil duct (B), an axial left oil duct (C), a low-pressure oil chamber (D), a radial left oil duct (E), a high-pressure oil chamber (G), an oil inlet (P), an oil outlet (T), a lower-right check valve (1), a square hard waterproof sealing ring (2), a lower suction cavity (3), an oil valve housing (4), a central oil valve (5), an oil valve cylinder (6), a lower-left check valve (7), an upper-right check valve (8), a first pump end body (9), an oil valve core (10), an upper discharge cavity (13), a left piston (14), an upper-left check valve (15), a combined sealing ring (16), a right piston (17), a second pump end body (18), a first inner hexagonal plug (21), a pressure gauge (22), a water outlet (23), a first inner hexagonal bolt (25), Hexagonal end cap (26), third hexagonal end cap (27), second hexagon socket head cap bolt (28), reveal observation hole (29), water inlet (30), PT mouthful oil valve (31), third hexagon socket head cap bolt (32), fourth hexagon end cap bolt (33), fourth hexagon end cap bolt (34) and free piston reciprocating motion, its characterized in that: the free piston reciprocating mechanism comprises a central oil valve (5), an oil valve core (10), an oil valve cylinder (6) and an oil valve shell (4), wherein two ends of the free piston reciprocating mechanism are connected with a left piston (14) and a right piston (17) through threads, the oil valve core (10) is arranged in the middle of the central oil valve (5), the middle parts of the oil valve cylinder (6) and the oil valve shell (4) are provided with a closing sealing ring, the middle part of the oil valve shell (4) is provided with an oil inlet (P) and an oil outlet (T), the oil valve shell (4) is communicated with the central oil valve (5), two ends of the top ends of a first pump end body (9) and a second pump end body (18) are provided with an upper right one-way check valve (8) and an upper left one-way check valve (15), the first pump end body (9) and the second pump end body (18) are respectively communicated with each other through an upper right one-way check valve (8) and an upper left one-way check valve (15) upper check cavity (13), the bottom both ends of first pump end body (9) and second pump end body (18) are provided with unidirectional check valve (1) and unidirectional check valve (7) and lower suction cavity (3) down under the right side and communicate with each other, first pump end body (9) and second pump end body (18) are connected fixedly through eight fourth hexagon socket head cap bolts (34), it is fixed through eight first hexagon socket head cap bolts (25) and eight second hexagon socket head cap bolts (28) with lower suction cavity (3) and second pump end body (18) and first pump end body (9) to go up row cavity (13).

2. The new hydraulic booster of claim 1, wherein: and a combined sealing ring (16) and a wear-resistant ring are arranged in the first pump end body (9), the second pump end body (18) and a piston of the free piston reciprocating mechanism, and a through hole is formed in the middle of the combined sealing ring (16).

3. The new hydraulic booster of claim 1, wherein: the oil valve core (10) consists of an oil valve body and an oil valve cover, the oil valve body and the oil valve cover on the oil valve core (10) are in right-angle positioning fit, and the oil valve body and the oil valve cover on the oil valve core (10) are in threaded connection.

4. The new hydraulic booster of claim 1, wherein: the diameters of the left piston (14) and the right piston (17) are 10-200mm, hollow holes are formed in the middle of the left piston (14) and the right piston (17), and the size ratio between the outer diameters of the left piston (14) and the right piston (17) and the maximum outer diameter of the central oil valve (5) is 0.1-15 times.