A segmented and split piston shaft driven booster cylinder

Abstract

The present invention relates to a segmented and split piston shaft transmission boosting cylinder, comprising a left oil cylinder, a boosting chamber cylinder barrel and a right oil cylinder; a left oil cylinder piston is provided in the left oil cylinder; a boosting chamber piston is provided in the boosting chamber cylinder barrel; a right oil cylinder piston is provided in the right oil cylinder; a first piston shaft is provided across a primary boosting chamber partition plate, with two ends extending into the left isolation chamber and the primary boosting chamber respectively, one end of the first piston shaft extending into the left isolation chamber is connected to the left oil cylinder piston, and one end extending into the primary boosting chamber is in contact with the boosting chamber piston; a second piston shaft is provided across a secondary boosting chamber partition plate, with two ends extending into the secondary boosting chamber and the right isolation chamber respectively, one end of the first piston shaft extending into the right isolation chamber is connected to the right oil cylinder piston, and one end extending into the secondary boosting chamber is in contact with the boosting chamber piston. The present invention can effectively solve the problems of easy damage to the piston and piston shaft, difficulty in installation and disassembly, processing deformation, and high cost of using the boosting cylinder by designing the piston and piston shaft in the boosting cylinder in segments and bodies.

Description

Technical Field

[0001] The present invention belongs to the technical field of booster cylinders, and in particular relates to a segmented and split piston shaft driven booster cylinder. Background Art

[0002] High-pressure boosting of fluid media is often achieved using a multi-stage boosting structure. Currently, the boosting units of conventional equipment are mostly single multi-stage boosting cylinders or multiple single-stage boosting cylinders connected in series. Both types of boosting cylinders are driven by a hydraulic pump and driven by hydraulic oil. These reciprocating boosting cylinders require multiple cylinder bodies and multiple pistons to be coaxially mounted on the piston shaft. The hydraulic oil pushes the pistons to alternate and reverse the axial force of the piston shaft, driving the periodic reciprocating motion of the gas piston, achieving volume changes in the gas medium and achieving the purpose of boosting.

[0003] Conventional single multi-stage booster cylinders generally use double-acting oil cylinders, and the internal structure of a single cylinder can only achieve one-stage boosting. During operation, the oil piston and the gas piston will apply axial tension and pressure to the piston shaft. This periodic stress causes the mechanical properties of the piston shaft body and the connection between the piston and the shaft to deteriorate significantly, and mechanical damage to the piston and piston shaft is likely to occur. In addition, since multiple sets of pistons need to be installed on one shaft, the shaft length needs to be too long, making it difficult to install and disassemble. When processing the shaft, bending and deformation are likely to occur.

[0004] Conventional multiple single-stage booster cylinders connected in series require multiple sets of power hydraulic oil input units. Adding one level of compression requires adding a set of hydraulic station units. In order to achieve the same working capacity as a single multi-stage booster cylinder, the main body requires more mechanical components, which is costly and uneconomical. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a segmented and split piston shaft transmission booster cylinder. By designing the piston and piston shaft in the booster cylinder into segments and parts, it can effectively solve the problems of easy damage to the piston and piston shaft, difficulty in installation and disassembly, processing deformation, and high cost of using the booster cylinder.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] A segmented and split piston shaft driven booster cylinder comprises a left oil cylinder, a booster chamber cylinder barrel and a right oil cylinder which are sequentially connected from left to right; the left oil cylinder is connected to the booster chamber cylinder barrel via a primary booster chamber partition, and the booster chamber cylinder barrel is connected to the right oil cylinder via a secondary booster chamber partition;

[0008] The left oil cylinder is provided with a left oil cylinder piston that divides its cavity into a left power cavity and a left isolation cavity; the boosting cavity cylinder is provided with a boosting cavity piston that divides its cavity into a primary boosting cavity and a secondary boosting cavity; the right oil cylinder is provided with a right oil cylinder piston that divides its cavity into a right isolation cavity and a right power cavity;

[0009] A first piston shaft is provided in the through hole of the primary boost chamber partition, with both ends extending into the left isolation chamber and the primary boost chamber respectively. The end of the first piston shaft extending into the left isolation chamber is threadedly connected to the left oil cylinder piston, and the end extending into the primary boost chamber contacts the boost chamber piston under the action of power drive and pushes the boost chamber piston to move rightward.

[0010] A second piston shaft is provided in the through hole of the secondary boost chamber partition, with both ends extending into the secondary boost chamber and the right isolation chamber respectively. The end extending into the right isolation chamber is threadedly connected to the right cylinder piston, and the end extending into the secondary boost chamber contacts with the boost chamber piston under the action of power drive and pushes the boost chamber piston to move to the left.

[0011] The above-mentioned segmented and split piston shaft transmission booster cylinder has a left oil chamber partition on the left side of the left oil cylinder; a left displacement magnetic scale is axially arranged in the center hole of the left oil chamber partition, a left hydraulic oil inlet and outlet connected to the left power chamber is opened on the top, and a left oil cylinder piston buffer groove is opened on the right side for reducing the impact of the left oil cylinder piston;

[0012] The left hydraulic oil inlet and outlet are connected to the hydraulic oil system through an oil pipeline; the electronic compartment of the left displacement magnetic scale is exposed on the left side of the left oil chamber partition, and the detection rod extends into the left oil cylinder, passes through the left oil cylinder piston, and extends to the blind hole opened at the axis of the first piston shaft;

[0013] A left oil piston buffer one-way valve and a left oil piston buffer damper are arranged side by side in the left oil cylinder piston buffer groove; the left oil piston buffer one-way valve and the left oil piston buffer damper are respectively connected to the left hydraulic oil inlet and outlet.

[0014] The above-mentioned segmented and split piston shaft driven booster cylinder has a primary booster chamber air inlet and a primary booster chamber air outlet respectively opened on the top and bottom of the primary booster chamber partition, which are connected to the primary booster chamber; the primary booster chamber air inlet is provided with a primary booster chamber air inlet check valve, and the primary booster chamber air outlet is provided with a primary booster chamber air outlet check valve;

[0015] The gas medium enters the primary boosting chamber through the primary boosting chamber air inlet one-way valve for primary boosting, and after the primary boosting is completed, the gas medium is discharged through the primary boosting chamber air outlet one-way valve.

[0016] The above-mentioned segmented and split piston shaft driven booster cylinder, the top and bottom of the secondary booster chamber partition are respectively provided with a secondary booster chamber air inlet and a secondary booster chamber air outlet connected to the secondary booster chamber; the secondary booster chamber air inlet is provided with a secondary booster chamber air inlet check valve, and the secondary booster chamber air outlet is provided with a secondary booster chamber air outlet check valve;

[0017] The primary boost chamber outlet one-way valve is connected to the secondary boost chamber inlet one-way valve through an exhaust pipe; when the gas medium in the primary boost chamber is squeezed, the primary boost chamber outlet one-way valve opens, and the gas medium passes through the exhaust pipe and the secondary boost chamber inlet one-way valve into the secondary boost chamber for secondary boosting.

[0018] The above-mentioned segmented and split piston shaft transmission booster cylinder has a right oil chamber partition on the right side of the right oil cylinder; a right displacement magnetic scale is axially arranged in the center hole of the right oil chamber partition, a right hydraulic oil inlet and outlet connected to the right power chamber is opened on the top, and a right oil cylinder piston buffer groove is opened on the left side for reducing the impact of the right oil cylinder piston;

[0019] The right hydraulic oil inlet and outlet are connected to the hydraulic oil system through an oil pipeline; the electronic compartment of the right displacement magnetic scale is exposed on the right side of the right oil chamber partition, and the detection rod extends into the right oil cylinder, passes through the right oil cylinder piston, and extends to the blind hole opened at the axis of the second piston shaft;

[0020] A right oil piston buffer one-way valve and a right oil piston buffer damper are arranged side by side in the right oil cylinder piston buffer groove; the right oil piston buffer one-way valve and the right oil piston buffer damper are respectively connected to the right hydraulic oil inlet and outlet.

[0021] The above-mentioned segmented and split piston shaft transmission booster cylinder, the first piston shaft is connected to the end of the left cylinder piston and is provided with a left displacement sensing magnet, which is used in conjunction with the left displacement magnetic scale to monitor the moving position of the left cylinder piston; the second piston shaft is connected to the end of the right cylinder piston and is provided with a right displacement sensing magnet, which is used in conjunction with the right displacement magnetic scale to monitor the moving position of the right cylinder piston.

[0022] The above-mentioned segmented and split piston shaft transmission booster cylinder, the outer diameter of the left oil cylinder piston is provided with a left oil piston seal that contacts the inner wall of the left oil cylinder; the outer diameter of the right oil cylinder piston is provided with a right oil piston seal that contacts the inner wall of the right oil cylinder; the outer diameter of the boosting chamber piston is provided with a boosting chamber piston seal that contacts the inner wall of the boosting chamber cylinder.

[0023] In the above-mentioned segmented and split piston shaft transmission booster cylinder, a left oil isolation seal and a first piston shaft seal that are in contact with the outer diameter of the first piston shaft are respectively provided in the through hole of the primary booster chamber partition; a second piston shaft seal and a right oil isolation seal that are in contact with the outer diameter of the second piston shaft are respectively provided in the through hole of the secondary booster chamber partition.

[0024] In the aforementioned segmented and split piston shaft driven booster cylinder, a first fluid medium leakage discharge port and a first gas medium leakage discharge port are respectively provided at the bottom of the primary booster chamber partition; the first fluid medium leakage discharge port is connected to the left isolation chamber; and the first gas medium leakage discharge port is provided between the left oil isolation seal and the first piston shaft seal.

[0025] The bottom of the secondary boost chamber partition is also provided with a second fluid medium leakage discharge port and a second gas medium leakage discharge port; the second fluid medium leakage discharge port is connected to the right isolation chamber; the second gas medium leakage discharge port is opened at a position between the second piston shaft seal and the right oil isolation seal.

[0026] The above-mentioned segmented and split piston shaft driven booster cylinder has a booster chamber cooling water jacket sleeved on the outer wall of the booster chamber cylinder, a cooling water outlet is provided at the top end close to the primary booster chamber partition, and a cooling water inlet is provided at the bottom end close to the secondary booster chamber partition; the cooling water outlet and the cooling water inlet are both connected to the water cooling system.

[0027] Technical effects and advantages of the present invention:

[0028] 1. The present invention provides a segmented and split piston shaft transmission booster cylinder. The first piston shaft, the booster chamber piston and the second piston shaft in the booster cylinder are combined in a segmented and split design. The piston shaft and the piston are independent of each other and are not connected by means of threads, ferrules, etc. When the booster cylinder is working, the piston does not apply axial tension and pressure to the piston shaft. There is only compressive stress between the piston shaft and the piston, which can effectively avoid the problem of attenuation of mechanical properties at the connection between the piston and the piston shaft and mechanical damage to the piston and the piston shaft.

[0029] 2. The present invention provides a segmented and split piston shaft transmission booster cylinder. Since the first piston shaft, the boosting chamber piston and the second piston shaft in the booster cylinder are combined in a segmented and split design, when assembling or disassembling the booster cylinder, the first piston shaft, the boosting chamber piston and the second piston shaft can be installed or disassembled separately, which can effectively improve the installation and disassembly efficiency and facilitate installation and disassembly.

[0030] 3. The present invention provides a segmented and split piston shaft transmission booster cylinder. Since the first piston shaft, the booster chamber piston and the second piston shaft in the booster cylinder are combined in a segmented and split design, the first piston shaft and the second piston shaft can be processed separately during piston shaft processing, avoiding the problems of the piston shaft being too long, difficult to position during processing, poor thermal diffusivity, large linear expansion, easy thermal deformation, and easy bending deformation when the two ends are fixed during processing.

[0031] 4. The present invention provides a segmented split-type piston shaft transmission booster cylinder. Since the first piston shaft, the boosting chamber piston and the second piston shaft in the booster cylinder are combined in a segmented split design, the diameter adjustment of each section of the piston shaft in the same booster cylinder can be achieved. Different from the existing conventional design in which the piston is installed on a long piston shaft, the present invention obtains different cylinder volumes by designing the segmented piston shafts on both sides of the piston with different diameters. Only one section of the piston shaft needs to be adjusted or both sections need to be adjusted at the same time to obtain a larger compression ratio. The adjustment limit of the piston shaft diameter is small. Such different diameter piston shafts can be combined with the same or different cylinders to obtain more different volumes, and more changes in volume ratio can be achieved in the same booster cylinder. By adjusting the piston shaft diameter, two-stage compression can be set in one cylinder. Most booster cylinders using this structure can be made into completely symmetrical structures, the booster cylinder runs more stably, and the forces on each component are more evenly distributed.

[0032] 5. The present invention provides a segmented and split piston shaft transmission booster cylinder, which is equipped with a left oil cylinder piston buffer groove on the left oil chamber partition and a right oil cylinder piston buffer groove on the right oil chamber partition, and an oil piston buffer one-way valve and an oil piston buffer damper are installed in the left oil cylinder piston buffer groove and the right oil cylinder piston buffer groove. When the left oil cylinder piston or the right oil cylinder piston runs to the left oil chamber partition and the right oil chamber partition, the booster cylinder can be more stable in the periodic limit position and the reciprocating switching can be softer. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the segmented and split piston shaft driven booster cylinder of the present invention;

[0034] Figure 2 This is a schematic diagram of the compression system of the segmented and split piston shaft driven booster cylinder of the present invention;

[0035] Figure 3 It is a partial enlarged view of the segmented and split piston shaft driven booster cylinder of the present invention;

[0036] Figure 4 This is a schematic diagram of a compression system of a segmented and split piston shaft-driven booster cylinder according to Example 2 of the present invention;

[0037] Figure 5This is a schematic diagram of a compression system of a segmented and split piston shaft-driven booster cylinder according to Example 3 of the present invention;

[0038] Figure 6 It is a schematic diagram of the compression system of the segmented and split piston shaft driven booster cylinder according to Example 4 of the present invention.

[0039] Numbers in the figure: 1. Left oil chamber partition; 2. Left spare nut; 3. Left displacement magnetic scale; 4. Left oil piston buffer damping; 5. Left oil piston buffer one-way valve; 6. Left oil cylinder; 7. Left oil cylinder piston; 8. Left oil piston seal; 9. Left displacement sensing magnet; 10. First piston shaft; 11. Primary boost chamber partition; 12. Left oil isolation seal; 13. Primary boost chamber intake one-way valve; 14. First piston shaft seal; 15. Boost chamber cooling water jacket; 16. Boost chamber cylinder; 17. Boost chamber piston; 18. Boost chamber piston seal; 19. Secondary boost chamber partition; 20. Secondary boost chamber intake one-way valve; 21. Secondary piston shaft seal; 22. Right oil isolation seal; 23. Right oil cylinder; 24. Secondary piston shaft; 25. Right oil piston seal; 26. Right oil cylinder piston; 27. Right displacement sensing Magnet; 28. Right oil piston buffer one-way valve; 29. ​​Right oil piston buffer damping; 30. Right displacement magnetic scale; 31. Spare tightening rod; 32. Right spare tightening nut; 33. Right oil chamber partition; 34. Secondary boost chamber air outlet one-way valve; 35. Primary boost chamber air outlet one-way valve; A1. Left power chamber; A2. Left isolation chamber; A3. Primary boost chamber; A4. Secondary boost chamber; A5. Right isolation chamber; A6. Right power chamber; a. Left hydraulic oil inlet and outlet; b. Right hydraulic oil inlet and outlet; c. Primary boost chamber air inlet; d. Primary boost chamber air outlet; e. Secondary boost chamber air inlet; f. Secondary boost chamber air outlet; g. First fluid medium leakage discharge port; h. First gas medium leakage discharge port; i. Second gas medium leakage discharge port; j. Second fluid medium leakage discharge port; k. Cooling water inlet; m. Cooling water outlet DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0041] See also Figure 1 The figure shows a segmented, split-type piston-shaft-driven booster cylinder. Its cylinder body comprises, from left to right, a left oil cylinder 6, a booster chamber barrel 16, and a right oil cylinder 23, which are sequentially connected. The right end of the left oil cylinder 6 is connected to the left end of the booster chamber barrel 16 via a primary booster chamber baffle 11, while the right end of the booster chamber barrel 16 is connected to the left end of the right oil cylinder 23 via a secondary booster chamber baffle 19. A left oil chamber baffle 1 is located on the left side of the left oil cylinder 6, and a right oil chamber baffle 33 is located on the right side of the right oil cylinder 23.

[0042] To enhance the integrity of the booster cylinder, a backup rod 31 is axially positioned at each of the four corners of the cylinder body, extending through the left oil chamber baffle 1, the primary boost chamber baffle 11, the secondary boost chamber baffle 19, and the right oil chamber baffle 33. Both ends of each of the four backup rods 31 are externally threaded. The end of the backup rod 31 exposed to the left of the left oil chamber baffle 1 is secured with a left backup nut 2, while the end of the backup rod 31 exposed to the right of the right oil chamber baffle 33 is secured with a right backup nut 32.

[0043] In this embodiment, see Figure 1 As shown, the left cylinder 6 is provided with a left cylinder piston 7 which divides its cavity into a left power chamber A1 and a left isolation chamber A2; the boosting chamber cylinder 16 is provided with a boosting chamber piston 17 which divides its cavity into a primary boosting chamber A3 and a secondary boosting chamber A4; the right cylinder 23 is provided with a right cylinder piston 26 which divides its cavity into a right isolation chamber A5 and a right power chamber A6.

[0044] In this embodiment, see Figure 1 As shown, a left piston buffer platform is provided on the left side of the left cylinder piston 7, and a right piston buffer platform is provided on the right side of the right cylinder piston 26; when the left cylinder piston 7 runs to the left and approaches the left oil chamber partition 1, it is inserted into the left cylinder piston buffer groove on the left cylinder piston 7; when the right cylinder piston 26 runs to the right and approaches the right oil chamber partition 33, it is inserted into the right cylinder piston buffer groove on the right oil chamber partition 33.

[0045] Furthermore, in order to prevent the fluid medium in the left power chamber A1 from entering the left isolation chamber A2 in large quantities and affecting the performance of the booster cylinder, a sealing groove is provided on the outer diameter of the left cylinder piston 7, and a left oil piston seal 8 in contact with the inner wall of the left cylinder 6 is provided in the sealing groove.

[0046] In order to prevent the fluid medium in the right power chamber A6 from entering the right isolation chamber A5 in large quantities and affecting the performance of the booster cylinder, a sealing groove is provided on the outer diameter of the right cylinder piston 26, and a right oil piston seal 25 in contact with the inner wall of the right cylinder 23 is provided in the sealing groove.

[0047] In order to avoid a large amount of mutual circulation of gaseous media in the primary boosting chamber A3 and the secondary boosting chamber A4, which would affect the compression performance of the boosting cylinder, a sealing groove is provided on the outer diameter of the boosting chamber piston 17, and a boosting chamber piston seal 18 in contact with the inner wall of the boosting chamber cylinder 16 is provided in the sealing groove.

[0048] In this embodiment, see Figure 1As shown, a left oil isolation seal 12 and a first piston shaft seal 14 that are in contact with the outer diameter of the first piston shaft 10 are respectively provided in the through hole of the primary boost chamber partition 11; a second piston shaft seal 21 and a right oil isolation seal 22 that are in contact with the outer diameter of the second piston shaft 24 are respectively provided in the through hole of the secondary boost chamber partition 19.

[0049] During specific implementation, in order to ensure the sealing effect, the left oil piston seal 8, the left oil isolation seal 12, the first piston shaft seal 14, the boost chamber piston seal 18, the second piston shaft seal 21, the right oil isolation seal 22 and the right oil piston seal 25 all use rubber sealing rings.

[0050] This city is implementing Figure 1 、 Figure 2 As shown, a primary boost chamber air inlet c and a primary boost chamber air outlet d, communicating with the primary boost chamber A3, are respectively provided at the top and bottom of the primary boost chamber baffle 11. To prevent backflow of the gaseous medium within the primary boost chamber A3, a primary boost chamber air inlet check valve 13 is provided at the primary boost chamber air inlet c, and a primary boost chamber air outlet check valve 35 is provided at the primary boost chamber air outlet d.

[0051] In specific implementation, when the boost cylinder is working and the piston rod moves to the right, the gas medium enters the primary boost chamber A3 through the primary boost chamber air inlet check valve 13 to achieve primary boosting. When the piston rod reverses direction, the gas medium is discharged through the primary boost chamber air outlet check valve 35.

[0052] In this embodiment, see Figure 1 、 Figure 2 As shown, a secondary pressurization chamber air inlet e and a secondary pressurization chamber air outlet f, communicating with the secondary pressurization chamber A4, are respectively provided at the top and bottom of the secondary pressurization chamber partition 19. To prevent backflow of the gaseous medium within the secondary pressurization chamber A4, a secondary pressurization chamber air inlet check valve 20 is provided at the secondary pressurization chamber air inlet e, and a secondary pressurization chamber air outlet check valve 34 is provided at the secondary pressurization chamber air outlet f.

[0053] During specific implementation, the primary boost chamber air outlet one-way valve 35 is connected to the secondary boost chamber air inlet one-way valve 20 through an exhaust pipe; when the piston rod of the boost cylinder runs from left to right to complete the primary boost, the piston rod reverses and runs from right to left. At this time, the gas medium in the primary boost chamber A3 is squeezed, and the primary boost chamber air outlet one-way valve 35 opens. The gas medium passes through the exhaust pipe and enters the secondary boost chamber A4 through the secondary boost chamber air inlet one-way valve 20 for secondary boost.

[0054] In this embodiment, see Figure 1 、 Figure 2As shown, a first fluid medium leakage discharge port g and a first gas medium leakage discharge port h are respectively provided at the bottom of the primary boost chamber partition 11. The first fluid medium leakage discharge port g is connected to the left isolation chamber A2; the first gas medium leakage discharge port h is provided between the left oil isolation seal 12 and the first piston shaft seal 14.

[0055] In specific implementation, when the left oil piston seal 8 becomes unstable or damaged, the fluid medium in the left power chamber A1 leaks into the left isolation chamber A2, and the leaked fluid medium is discharged out of the left isolation chamber A2 through the first fluid medium leakage discharge port g.

[0056] In specific implementation, when the first piston shaft seal 14 and the left oil isolation seal 12 become unstable or damaged, the gas medium leaked from the left isolation chamber A2 and the primary boost chamber A3 is discharged out of the boost cylinder body through the first gas medium leakage discharge port h to balance the internal pressure of the left isolation chamber A2.

[0057] In this embodiment, see Figure 1 、 Figure 2 As shown, a second fluid medium leakage discharge port j and a second gas medium leakage discharge port i are also provided at the bottom of the secondary boost chamber partition 19. The second fluid medium leakage discharge port j communicates with the right isolation chamber A5; the second gas medium leakage discharge port i is located between the second piston shaft seal 21 and the right oil isolation seal 22.

[0058] In specific implementation, when the right oil piston seal 25 becomes unstable or damaged, the fluid medium in the right power chamber A6 leaks into the right isolation chamber A5, and the leaked fluid medium is discharged out of the right isolation chamber A5 through the second fluid medium leakage discharge port j.

[0059] In specific implementation, when the second piston shaft seal 21 and the right oil isolation seal 22 become unstable or damaged, the gas medium leaked from the right isolation chamber A5 and the secondary boost chamber A4 is discharged out of the boost cylinder body through the second gas medium leakage discharge port i to balance the internal pressure of the left isolation chamber A5.

[0060] In this embodiment, see Figure 1 As shown, the first piston shaft 10 is arranged across the through hole of the primary boost chamber partition 11, and its two ends extend into the left isolation chamber A2 and the primary boost chamber A3 respectively. The end extending into the left isolation chamber A2 is threadedly connected to the left cylinder piston 7, and the end extending into the primary boost chamber A3 contacts the boost chamber piston 17 under the action of power drive and pushes the boost chamber piston 17 to move to the right.

[0061] In specific implementation, a blind hole is opened at the center of one end of the first piston shaft 10 extending into the left isolation chamber A2 to facilitate the insertion of the left displacement magnetic scale 3, and a left displacement induction magnet 9 is provided at the mouth of the blind hole. The left cylinder piston 7 is sleeved on the outer diameter of the first piston shaft 10.

[0062] In this embodiment, see Figure 1 As shown, the second piston shaft 24 is arranged across the through hole of the secondary boost chamber partition 19, and its two ends extend into the secondary boost chamber A4 and the right isolation chamber A5 respectively. The end extending into the right isolation chamber A5 is threadedly connected to the right cylinder piston 26, and the end extending into the secondary boost chamber A4 contacts the boost chamber piston 17 under the action of power drive and pushes the boost chamber piston 17 to move to the left.

[0063] In specific implementation, a blind hole is opened at the center of one end of the second piston shaft 24 extending into the right isolation chamber A5 to facilitate the insertion of the right displacement magnetic scale 30, and a right displacement induction magnet 27 is provided at the mouth of the blind hole. The right cylinder piston 26 is sleeved on the outer diameter of the second piston shaft 24.

[0064] In this embodiment, see Figure 1 、 Figure 2 As shown, a center hole is provided on the left oil chamber partition 1, which is coaxial with the first piston shaft 10. The left displacement magnetic scale 3 is axially arranged in the center hole, and its electronic compartment is exposed on the left side of the left oil chamber partition 1. The detection rod extends into the left oil cylinder 6, passes through the left oil cylinder piston 7, passes through the left displacement sensing magnet 9, and extends to the blind hole of the first piston shaft 10.

[0065] During specific implementation, the left displacement magnetic scale 3 is connected to the control system and is used in conjunction with the left displacement induction magnet 9 for induction to monitor the moving position of the left cylinder piston 7.

[0066] In this embodiment, see Figure 1 、 Figure 2 As shown, a left hydraulic oil inlet and outlet a connected to the left power chamber A1 is provided on the top of the left oil chamber partition 1. The left hydraulic oil inlet and outlet a is connected to the hydraulic oil system through an oil pipeline. The hydraulic oil system is connected to the control system for controlling the input and output of the fluid medium in the left power chamber A1.

[0067] In this embodiment, see Figure 1 As shown, a left oil cylinder piston buffer groove is provided on the right side of the left oil chamber partition 1 for reducing the impact of the left oil cylinder piston 7; the left oil cylinder piston buffer groove is an annular groove, and when the left oil cylinder piston 7 runs to the left to the limit, its buffer platform is inserted into the buffer groove.

[0068] Furthermore, a left oil piston buffer one-way valve 5 and a left oil piston buffer damper 4 are arranged side by side in the left oil cylinder piston buffer groove; a microchannel is opened in the inner ring of the left oil cylinder piston buffer groove below the left oil piston buffer damper 4.

[0069] The microchannel, the left oil piston buffer one-way valve 5 and the left oil piston buffer damper 4 are respectively connected to the left hydraulic oil inlet and outlet a.

[0070] For details, see Figure 3 As shown, the left oil piston buffer one-way valve 5 is unidirectionally connected from the left hydraulic oil inlet and outlet a to the B1 chamber. When the left cylinder piston 7 moves to the left until the buffer platform on the left cylinder piston 7 is inserted into the left cylinder piston buffer groove, the B1 chamber, the B2 chamber and the original left power chamber A1 are formed. When the left cylinder piston 7 continues to move to the left, the fluid medium in the left power chamber A1 and B2 chamber can directly return to the hydraulic oil system through the left hydraulic oil inlet and outlet a. At this time, the left oil piston buffer one-way valve 5 is closed, and the fluid medium in the B1 chamber can only return to the hydraulic oil system through the left oil piston buffer damping 4. The left oil piston buffer damping 4 It has a damping effect on the fluid medium, and the speed at which the fluid medium in the B1 chamber returns to the hydraulic oil system is slowed down. This damping effect can provide reverse acceleration to the left cylinder piston 7, so that the left cylinder piston 7 can be decelerated, which can ensure that the booster cylinder runs more smoothly at the limit position; when the left cylinder piston 7 moves to the right, the power fluid medium passes through the left hydraulic oil inlet and outlet a to the left power chamber A1 channel, the left hydraulic oil inlet and outlet a through the left oil piston buffer one-way valve 5 to the B1 chamber channel, and the left hydraulic oil inlet and outlet a to the B2 chamber channel and enters the left power chamber A1 at the same time. There is no damping in each channel, so that the left cylinder piston 7 can smoothly leave the left power chamber A1.

[0071] In this embodiment, see Figure 1 、 Figure 2 As shown, a center hole is provided on the right oil chamber partition 33, which is coaxial with the second piston shaft 24. The right displacement magnetic scale 30 is axially arranged in the center hole, and its electronic compartment is exposed on the right side of the right oil chamber partition 33. The detection rod extends into the right oil cylinder 23, passes through the right oil cylinder piston 26, and extends to the blind hole of the second piston shaft 24 through the right displacement sensing magnet 27.

[0072] During specific implementation, the right displacement magnetic scale 30 is connected to the control system and is used in conjunction with the right displacement sensing magnet 27 for sensing to monitor the moving position of the right oil cylinder piston 26 .

[0073] In this embodiment, see Figure 1 、 Figure 2As shown, a right hydraulic oil inlet and outlet b connected to the right power chamber A6 is provided on the top of the right oil chamber partition 33. The right hydraulic oil inlet and outlet b is connected to the hydraulic oil system through an oil pipeline. The hydraulic oil system is connected to the control system for controlling the input and output of the fluid medium in the right power chamber A6.

[0074] In this embodiment, see Figure 1 As shown, a right oil cylinder piston buffer groove for reducing the impact of the right oil cylinder piston 26 is opened on the right side of the right oil chamber partition 33; the right oil cylinder piston buffer groove is an annular groove, and when the right oil cylinder piston 26 runs to the right to the limit, its buffer platform is inserted into the buffer groove.

[0075] Furthermore, a right oil piston buffer one-way valve 28 and a right oil piston buffer damper 29 are arranged side by side in the right oil cylinder piston buffer groove; a microchannel is opened in the inner ring of the right oil cylinder piston buffer groove below the right oil piston buffer damper 29.

[0076] The microchannel, the right oil piston buffer one-way valve 28 and the right oil piston buffer damper 29 are respectively connected to the right hydraulic oil inlet and outlet b.

[0077] Specifically, the buffering principle implemented by the right oil cylinder piston 26 is the same as that of the left oil piston 7, and will not be repeated here.

[0078] In this embodiment, see Figure 1 As shown, a boost chamber cooling water jacket 15 is provided on the outer wall of the boost chamber cylinder 16, and a cooling water outlet m is provided at the top end close to the primary boost chamber partition 11, and a cooling water inlet k is provided at the bottom end close to the secondary boost chamber partition 19; the cooling water outlet m and the cooling water inlet k are both connected to the water cooling system.

[0079] In specific implementation, the segmented and split piston shaft transmission booster cylinder provided by the present invention, when the cylinder body is running, the fluid medium enters the left power chamber A1 from the hydraulic oil system, pushes the left cylinder piston 7, drives the first piston shaft 10 to run to the right, contacts the boosting chamber piston 17 and pushes the boosting chamber piston 17 to run to the right, and pushes the second piston shaft 24 to run to the right. While running to the right, the fluid medium in the right power chamber A6 is discharged back to the hydraulic oil system, and the gas medium enters the primary boosting chamber A3 from the primary boosting chamber inlet check valve 13, and the gas medium in the secondary boosting chamber A4 is discharged from the secondary boosting chamber outlet check valve 34 after the second boost, and the right cylinder piston 26 runs to the right. When the control system detects the limit position through the displacement magnetic scale 30, the primary boosting chamber A3 is completed to suck air, and the secondary boosting chamber A4 is completed to exhaust air; the control system controls the hydraulic oil system to let the fluid medium enter the right power chamber A6, pushes the right cylinder piston 26 to drive the second piston shaft 24 to run to the left, pushes the boosting chamber piston 17 to run to the left, and pushes the A piston shaft 10 moves to the left, driving the left cylinder piston 7 to move to the left; while moving to the left, the fluid medium in the left power chamber A1 is discharged back to the hydraulic oil system, and the gas medium in the primary boosting chamber A3 enters the secondary boosting chamber A4 through the primary boosting chamber outlet check valve 35 after the first boosting. Since the volume of the secondary boosting chamber A4 is smaller than that of the primary boosting chamber A3, the gas medium that needs to be boosted enters the smaller volume from the larger volume, and the pressure increases. The left cylinder piston 7 moves to the left, and when the control system detects the limit position through the left displacement magnetic scale 3, the gas medium in the primary boosting chamber A3 is compressed into the secondary boosting chamber A4, and the gas medium completes the first boosting; the left cylinder piston 7 and the right cylinder piston 26 reciprocate between the left limit position and the right limit position under the cooperation of the control system displacement detection and the hydraulic oil system, completing the periodic intake and exhaust of the primary boosting chamber A3 and the periodic intake and exhaust of the secondary boosting chamber A4, and the boosting cylinder completes the first and second boosting of the gas medium that needs to be boosted.

[0080] The segmented and split piston shaft transmission booster cylinder provided by the present invention can also be improved as follows:

[0081] Example 2

[0082] See also Figure 4 As shown, the cylinder structure and pressurization principle for achieving double pressurization of the gas medium;

[0083] The power oil enters the A11 chamber, and the hydraulic oil in the A18 chamber is discharged back to the tank. The piston rod and piston in the cylinder body move to the right. The gas medium that needs to be pressurized enters the A13 chamber from the intake line. The gas medium in the A16 chamber is pressurized for the first time and enters the A15 chamber. The volume of the A15 chamber is smaller than that of the A16 chamber. The gas medium that needs to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A14 chamber is pressurized for the second time and is discharged from the exhaust port. When the piston moves to the right and the control system detects the limit position, the suction of the A13 chamber is completed, the compression of the gas medium in the A16 chamber to the A15 chamber is completed, and the exhaust of the A14 chamber is completed; the power oil enters the A18 chamber, and the hydraulic oil in the A11 chamber is discharged back to the tank. When the piston rod and piston move to the left, the pressure needs to be increased. The pressurized gas medium enters the A16 chamber from the intake pipeline, and the fluid in the A13 chamber enters the A14 chamber after the first pressurization. The volume of the A14 chamber is smaller than that of the A13 chamber. The gas medium to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A15 chamber is discharged from the exhaust port after the second pressurization. When the piston runs to the left limit position detected by the control system, the A6 chamber completes the suction, the gas medium in the A13 chamber is compressed into the A14 chamber, and the exhaust of the A15 chamber is completed; the piston reciprocates between the left limit position and the right limit position, and the A13 chamber, A14 chamber, A15 chamber, and A16 chamber complete alternating intake and exhaust, and the booster cylinder completes the first and second bidirectional double-acting pressurization of the gas medium to be pressurized.

[0084] The cold water system provides cooling water for the two booster cylinders. The cold water enters the cold water chamber through ports K1 and N1 respectively to cool the booster cylinders. After circulating cooling, the cold water returns to the cold water system through ports M1 and O1 respectively.

[0085] Example 3

[0086] See also Figure 5 As shown, the cylinder structure and pressurization principle for realizing three-time pressurization of gas medium;

[0087] The power oil enters the A21 chamber while the hydraulic oil in the A210 chamber is discharged back to the tank. The piston rod and piston in the cylinder body move to the right. The gas medium that needs to be pressurized enters the A25 chamber from the intake pipe. The gas medium in the A26 chamber is pressurized to the A27 chamber for the first time. The volume of the A27 chamber is smaller than that of the A26 chamber. The gas medium that needs to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A24 chamber is pressurized to the A23 chamber for the second time, and the gas medium in the A28 chamber is discharged from the exhaust port after the third pressurization. When the piston moves to the right and the control system detects the limit position, the suction of the A25 chamber is completed, the compression of the gas medium in the A26 chamber to the A27 chamber is completed, the compression of the gas medium in the A24 chamber to the A23 chamber is completed, and the exhaust of the A28 chamber is completed; the power oil enters the A210 chamber while the hydraulic oil in the A21 chamber is discharged back to the tank. When the piston rod and piston move to the left, the gas medium that needs to be pressurized enters the A25 chamber from the intake pipe. The line enters the A26 chamber, and the gas medium in the A25 chamber enters the A24 chamber after the first pressurization. The volume of the A24 chamber is smaller than that of the A25 chamber. The gas medium to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A27 chamber enters the A28 chamber after the second pressurization. The gas medium in the A23 chamber is discharged from the exhaust port after the third pressurization. When the piston moves to the left and the control system detects the limit position, the A26 chamber completes the suction, the A25 chamber gas medium is compressed into the A24 chamber, the A27 chamber gas medium is compressed into the A28 chamber, and the A23 chamber exhaust is completed; the piston reciprocates between the left limit position and the right limit position, and the A23 chamber, A24 chamber, A25 chamber, A26 chamber, A27 chamber, and A28 chamber complete alternating intake and exhaust, and the booster cylinder completes the first, second, and third bidirectional double-acting pressurization of the gas medium to be pressurized.

[0088] The cold water system provides cooling water for the three cylinder bodies of the booster cylinder. The cold water enters the cold water chamber through ports P2, R2, and T2 to cool the booster cylinder. After circulating cooling, it returns to the cold water system through ports Q2, S2, and U2.

[0089] Example 4

[0090] See also Figure 6 As shown, the cylinder structure and pressurization principle for realizing four-fold pressurization of gas medium;

[0091] The power oil enters the A31 chamber while the hydraulic oil in the A38 chamber is discharged back to the tank. The piston rod and piston in the cylinder body move to the right. The gas medium that needs to be pressurized enters the A33 chamber from the intake pipe. The gas medium in the A36 chamber is pressurized for the second time and enters the A35 chamber. The volume of the A35 chamber is smaller than that of the A36 chamber. The gas medium that needs to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A34 chamber is discharged after the fourth pressurization. When the piston moves to the right and the control system detects the limit position, the suction of the A33 chamber is completed, the compression of the gas medium in the A36 chamber to the A35 chamber is completed, and the exhaust of the A34 chamber is completed; the power oil enters the A38 chamber while the hydraulic oil in the A31 chamber is discharged back to the tank. When the piston rod and piston move to the left, A After the first pressurization, the gas medium in the A33 chamber enters the A36 chamber. The volume of the A36 chamber is smaller than that of the A33 chamber. The gas medium to be pressurized enters the small volume from the large volume, and the pressure increases. The gas medium in the A35 chamber enters the A34 chamber after the third pressurization. When the piston moves to the left and the limit position is detected by the control system, the gas medium in the A33 chamber is compressed into the A36 chamber, and the gas medium in the A35 chamber is compressed into the A34 chamber; the piston reciprocates between the left limit position and the right limit position, and the A33 chamber, A34 chamber, A35 chamber, and A36 chamber complete alternating intake and exhaust. The booster cylinder completes the first, second, third, and fourth two-way double-acting pressurization of the gas medium to be pressurized.

[0092] The cold water system provides cooling water for the two cylinder bodies of the booster cylinder. The cooling water enters the cold water cavity through ports K3 and N3 respectively, and returns to the cold water system through ports M3 and O3 respectively after circulating cooling.

[0093] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A segmented and split piston shaft driven booster cylinder, characterized in that: The invention comprises a left oil cylinder (6), a boost chamber cylinder barrel (16) and a right oil cylinder (23) which are sequentially connected from left to right; the left oil cylinder (6) is connected to the boost chamber cylinder barrel (16) via a primary boost chamber partition (11), and the boost chamber cylinder barrel (16) is connected to the right oil cylinder (23) via a secondary boost chamber partition (19); The left oil cylinder (6) is provided with a left oil cylinder piston (7) for dividing its cavity into a left power cavity (A1) and a left isolation cavity (A2); the boosting cavity cylinder (16) is provided with a boosting cavity piston (17) for dividing its cavity into a primary boosting cavity (A3) and a secondary boosting cavity (A4); the right oil cylinder (23) is provided with a right oil cylinder piston (26) for dividing its cavity into a right isolation cavity (A5) and a right power cavity (A6); A first piston shaft (10) is provided in the through hole of the primary boost chamber partition (11), with both ends extending into the left isolation chamber (A2) and the primary boost chamber (A3) respectively. The end extending into the left isolation chamber (A2) is threadedly connected to the left oil cylinder piston (7), and the end extending into the primary boost chamber (A3) contacts the boost chamber piston (17) under the action of power drive and pushes the boost chamber piston (17) to move to the right. A second piston shaft (24) is provided in the through hole of the secondary boosting chamber partition (19), with both ends extending into the secondary boosting chamber (A4) and the right isolation chamber (A5) respectively. The end extending into the right isolation chamber (A5) is threadedly connected to the right oil cylinder piston (26), and the end extending into the secondary boosting chamber (A4) contacts the boosting chamber piston (17) under the action of power drive and pushes the boosting chamber piston (17) to move leftward.

2. The segmented and split piston shaft driven booster cylinder according to claim 1, characterized in that: A left oil chamber partition (1) is provided on the left side of the left oil cylinder (6); a left displacement magnetic scale (3) is axially arranged in the center hole of the left oil chamber partition (1); a left hydraulic oil inlet and outlet (a) communicating with the left power chamber (A1) is provided on the top; and a left oil cylinder piston buffer groove for reducing the impact of the left oil cylinder piston (7) is provided on the right side; The left hydraulic oil inlet and outlet (a) is connected to the hydraulic oil system through an oil pipeline; the electronic compartment of the left displacement magnetic scale (3) is exposed on the left side of the left oil chamber partition (1); the detection rod extends into the left oil cylinder (6), passes through the left oil cylinder piston (7), and extends to the blind hole opened at the axis of the first piston shaft (10); A left oil piston buffer one-way valve (5) and a left oil piston buffer damper (4) are arranged side by side in the left oil cylinder piston buffer groove; the left oil piston buffer one-way valve (5) and the left oil piston buffer damper (4) are respectively connected to the left hydraulic oil inlet and outlet (a).

3. The segmented and split piston shaft driven booster cylinder according to claim 1, characterized in that: A primary boost chamber air inlet (c) and a primary boost chamber air outlet (d) communicating with the primary boost chamber (A3) are respectively provided at the top and bottom of the primary boost chamber partition (11); the primary boost chamber air inlet (c) is provided with a primary boost chamber air inlet check valve (13), and the primary boost chamber air outlet (d) is provided with a primary boost chamber air outlet check valve (35); The gas medium enters the primary boosting chamber (A3) through the primary boosting chamber air inlet check valve (13) for primary boosting, and is discharged through the primary boosting chamber air outlet check valve (35) after the primary boosting is completed.

4. The segmented and split piston shaft driven booster cylinder according to claim 3, characterized in that: The top and bottom of the secondary boost chamber partition (19) are respectively provided with a secondary boost chamber air inlet (e) and a secondary boost chamber air outlet (f) which are in communication with the secondary boost chamber (A4); the secondary boost chamber air inlet (e) is provided with a secondary boost chamber air inlet check valve (20), and the secondary boost chamber air outlet (f) is provided with a secondary boost chamber air outlet check valve (34); The primary boost chamber outlet check valve (35) is connected to the secondary boost chamber inlet check valve (20) through an exhaust pipe; when the gas medium in the primary boost chamber (A3) is squeezed, the primary boost chamber outlet check valve (35) opens, and the gas medium passes through the exhaust pipe and the secondary boost chamber inlet check valve (20) into the secondary boost chamber (A4) for secondary boosting.

5. The segmented and split piston shaft driven booster cylinder according to claim 2, characterized in that: A right oil chamber partition (33) is provided on the right side of the right oil cylinder (23); a right displacement magnetic scale (30) is axially arranged in the center hole of the right oil chamber partition (33); a right hydraulic oil inlet and outlet (b) communicating with the right power chamber (A6) is provided on the top; and a right oil cylinder piston buffer groove for reducing the impact of the right oil cylinder piston (26) is provided on the left side; The right hydraulic oil inlet and outlet (b) is connected to the hydraulic oil system through an oil pipeline; the electronic compartment of the right displacement magnetic scale (30) is exposed on the right side of the right oil chamber partition (33); the detection rod extends into the right oil cylinder (23), passes through the right oil cylinder piston (26), and extends to the blind hole opened at the axis of the second piston shaft (24); A right oil piston buffer one-way valve (28) and a right oil piston buffer damper (29) are arranged side by side in the right oil cylinder piston buffer groove; the right oil piston buffer one-way valve (28) and the right oil piston buffer damper (29) are respectively connected to the right hydraulic oil inlet and outlet (b).

6. The segmented and split piston shaft driven booster cylinder according to claim 5, characterized in that: One end of the first piston shaft (10) connected to the left oil cylinder piston (7) is provided with a left displacement induction magnet (9), which is used in conjunction with the left displacement magnetic scale (3) to monitor the movement position of the left oil cylinder piston (7); one end of the second piston shaft (24) connected to the right oil cylinder piston (26) is provided with a right displacement induction magnet (27), which is used in conjunction with the right displacement magnetic scale (30) to monitor the movement position of the right oil cylinder piston (26).

7. The segmented and split piston shaft driven booster cylinder according to claim 1, characterized in that: A left oil piston seal (8) is provided on the outer diameter of the left oil cylinder piston (7) and contacts the inner wall of the left oil cylinder (6); a right oil piston seal (25) is provided on the outer diameter of the right oil cylinder piston (26) and contacts the inner wall of the right oil cylinder (23); and a boosting chamber piston seal (18) is provided on the outer diameter of the boosting chamber piston (17) and contacts the inner wall of the boosting chamber cylinder (16).

8. The segmented and split piston shaft driven booster cylinder according to claim 1 or 4, characterized in that: A left oil isolation seal (12) and a first piston shaft seal (14) in contact with the outer diameter of the first piston shaft (10) are respectively provided in the through hole of the primary boost chamber partition (11); a second piston shaft seal (21) and a right oil isolation seal (22) in contact with the outer diameter of the second piston shaft (24) are respectively provided in the through hole of the secondary boost chamber partition (19).

9. The segmented and split piston shaft driven booster cylinder according to claim 8, characterized in that: The bottom of the primary boost chamber partition (11) is also provided with a first fluid medium leakage discharge port (g) and a first gas medium leakage discharge port (h); the first fluid medium leakage discharge port (g) is communicated with the left isolation chamber (A2); the first gas medium leakage discharge port (h) is provided at a position between the left oil isolation seal (12) and the first piston shaft seal (14); The bottom of the secondary boost chamber partition (19) is also provided with a second fluid medium leakage discharge port (j) and a second gas medium leakage discharge port (i); the second fluid medium leakage discharge port (j) is connected to the right isolation chamber (A5); the second gas medium leakage discharge port (i) is opened at a position between the second piston shaft seal (21) and the right oil isolation seal (22).

10. The segmented and split piston shaft driven booster cylinder according to claim 1, characterized in that: A boost chamber cooling water jacket (15) is provided on the outer wall of the boost chamber cylinder (16), and a cooling water outlet (m) is provided at one end of the top close to the primary boost chamber partition (11), and a cooling water inlet (k) is provided at one end of the bottom close to the secondary boost chamber partition (19); the cooling water outlet (m) and the cooling water inlet (k) are both connected to the water cooling system.

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