An integrated double cylinder

Abstract

The present invention discloses an integrated double oil cylinder, comprising a main cylinder body; two cylinder barrels arranged and overlapped in radial direction are arranged in the main cylinder body through an isolating body, one end of the two cylinder barrels are fixedly connected to the cylinder bottom, and the other end are fixedly connected to a guide sleeve, the arrangement directions of the cylinder bottom and the guide sleeve in the two cylinder barrels are opposite, the two cylinder barrels are provided with connected piston rods and pistons, two rod chamber oil ports and two rodless chamber oil ports corresponding to the two cylinder barrels are provided in the main cylinder body, one end of the piston rod passes through the respective guide sleeves and is fixedly connected to the respective connecting blocks, both ends of the main cylinder body are fixedly connected with adjusting barrels, the adjusting barrels are provided with outer pistons, and the outer pistons are fixedly connected to the respective connecting blocks; the outer circle of each cylinder bottom, piston, outer piston and the inner circle of the guide sleeve are provided with sealing rings; the present invention has the advantages of small installation distance and two piston rods can operate independently, can be applied to more working conditions, has a wide application range, and is particularly suitable for underwater suction and drainage operations.

Description

Technical Field

[0001] The invention relates to a double oil cylinder, in particular to an integrated double oil cylinder used for underwater operation. Background Art

[0002] Commonly used double cylinders have two piston rods in the cylinder barrel. The two piston rods are coaxially arranged. Not only is the installation distance long, but the two piston rods are linked and need to be extended or retracted at the same time. They cannot be controlled and operated independently. The applicable working conditions are single and the application range is limited. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated double oil cylinder in view of the above-mentioned deficiencies in the prior art. The integrated double oil cylinder has the advantages of small installation distance and two piston rods that can operate independently. It can be applied to more working conditions and has a wide range of applications, and is particularly suitable for underwater suction and drainage operations.

[0004] To achieve the above-mentioned purpose, an integrated double oil cylinder of the present invention comprises a main cylinder body; it is characterized in that two cylinder barrels are arranged in radial overlap through an isolating body in the main cylinder body, one end of the two cylinder barrels are fixedly connected to the cylinder bottom, and the other end is fixedly connected to a guide sleeve, the arrangement directions of the cylinder bottom and the guide sleeve in the two cylinder barrels are opposite, and the two cylinder barrels are provided with connected piston rods and pistons, and the main cylinder body is provided with two rod chamber oil ports and two rodless chamber oil ports corresponding to the two cylinder barrels, one end of the piston rod passes through their respective guide sleeves and is fixedly connected to their respective connecting blocks, and both ends of the main cylinder body are fixedly connected with adjusting cylinders, and external pistons are provided in the adjusting cylinders, and the external pistons are fixedly connected to their respective connecting blocks; each cylinder bottom, piston, outer circle of the external piston and the inner circle of the guide sleeve are provided with sealing rings.

[0005] The invention has the advantage of small installation distance because the two piston rods are arranged in an overlapping manner. The two cylinder barrels are provided with respective rod chamber oil ports and rodless chamber oil ports. The two piston rods can work independently without linkage, and can be applied to more working conditions and have a wide range of applications. When working underwater, the outer piston is not connected to other workpieces, and suction and drainage operations can be performed.

[0006] As a further improvement of the present invention, the connecting blocks are all integrally fixed with a ball head, the outer piston is provided with a spherical groove, the front end of the ball head is placed in the spherical groove, the rear end of the ball head is clamped in the cover plate, the cover plate is fixedly connected to the outer piston, the rear end surface of the connecting block is tightly attached to the front end surface of the corresponding piston rod and is fixedly connected by bolts; the connecting block and the corresponding piston rod are in surface contact, and the ball head and the spherical groove cooperate to ensure smooth translation of the outer piston;

[0007] As a further improvement of the present invention, the main cylinder body is further provided with two detection chambers, each of which is provided with a displacement sensor, and the displacement sensors are respectively connected to the isolation body and their respective connection blocks; the displacement distance of the piston rod or the outer piston can be detected;

[0008] As a further improvement of the present invention, the oil port of the rod chamber and the oil port of the rodless chamber are both provided with screw plugs; when not in operation, the two oil ports can be protected; when in operation, the screw plugs are removed to facilitate connection with the oil pipe;

[0009] In summary, the present invention has the advantages of small installation distance and two piston rods being able to operate independently, can be applied to more working conditions, has a wide application range, and is particularly suitable for underwater suction and drainage operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of an embodiment of the present invention.

[0011] Figure 2 for Figure 1 AA section view.

[0012] Figure 3 for Figure 2 BB cross-sectional view. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] like Figures 1 to 3 As shown, an integrated double oil cylinder of this embodiment comprises a main cylinder body 1, two cylinder barrels 3 and 4 arranged in radial overlap in the main cylinder body 1 through an isolating body 2, and two detection chambers 17. One end of the two cylinder barrels 3 and 4 are fixedly connected to the cylinder bottom 5 through a thread, and the other end is fixedly connected to the guide sleeve 6 through a thread. The arrangement directions of the cylinder bottom 5 and the guide sleeve 6 in the two cylinder barrels 3 and 4 are opposite. The two cylinder barrels 3 and 4 are provided with a connected piston rod 21 and a piston 22. The main cylinder body 1 is provided with two rod chamber oil ports 7 and two rodless chamber oil ports 8 corresponding to the two cylinder barrels 3 and 4. The rod chamber oil port 7 and the rodless chamber oil port 8 are both provided with screw plugs 9. The front ends of the piston rods 21 pass through their respective guide sleeves 6. The front end faces of the plug rods 21 are in close contact with the rear end faces of the respective connecting blocks 10 and are fixedly connected by bolts 12. The connecting blocks 10 are integrally fixed with ball heads 11. Adjustment cylinders 13 are fixedly connected at both ends of the main cylinder body 1. An outer piston 14 is slidably provided in the adjusting cylinder 13. The outer piston 14 is provided with a spherical groove. The front end of the ball head 11 is placed in the spherical groove. The rear end of the ball head 11 is stuck in the cover plate 15. The cover plate 15 and the outer piston 14 are fixedly connected by several screws 16. Displacement sensors 18 are provided in the detection chambers 17. The displacement sensors 18 are respectively connected to the isolation body 2 and the respective connecting blocks 10. Sealing rings are provided on the outer circle of each cylinder bottom 5, the piston 22, the outer piston 14 and the inner circle of the guide sleeve 6.

[0015] When working, remove the screw plug 9, and connect the oil ports 7 and 8 of the rod chamber to the oil pipe; the whole device is placed underwater, and the extension or retraction of the two piston rods 21 and the outer piston 14 can be controlled separately by oil inlet or oil return to the oil ports 7 and 8 of the rod chamber, so as to perform suction and drainage operations in the regulating cylinder 13;

[0016] The isolating body 2 and the main cylinder body 1 can be integrally formed by casting; the present invention has the advantage of a small installation distance due to the overlapping arrangement of the two piston rods 21, and the two cylinder barrels 3 and 4 are provided with respective rod chamber oil ports 7 and rodless chamber oil ports 8. The two piston rods 21 can operate independently without linkage, and can be applied to more working conditions and have a wide range of applications; when operating underwater, the outer piston 21 is not connected to other workpieces, and can perform suction and drainage operations; the connecting block 10 and the corresponding piston rod 21 can overcome the influence of eccentricity on thrust through surface contact and the cooperation of the ball head 11 and the spherical groove, thereby ensuring smooth translation of the outer piston 14; the displacement sensor 18 can detect the displacement distance of the piston rod 21 or the outer piston 14; when not working, the screw plug 9 can protect the two oil ports.

Claims

1. An integrated double oil cylinder, comprising a main cylinder body; characterized in that Two cylinder barrels are arranged in radial overlap through a spacer in the main cylinder body, one end of the two cylinder barrels is fixedly connected to the cylinder bottom, and the other end is fixedly connected to a guide sleeve, the cylinder bottom and the guide sleeve in the two cylinder barrels are arranged in opposite directions, and connected piston rods and pistons are provided in the two cylinder barrels. Two rod chamber oil ports and two rodless chamber oil ports corresponding to the two cylinder barrels are provided in the main cylinder body, one end of the piston rod passes through their respective guide sleeves and is fixedly connected to their respective connecting blocks, and adjusting barrels are fixedly connected at both ends of the main cylinder body, and external pistons are provided in the adjusting barrels, and the external pistons are fixedly connected to their respective connecting blocks; sealing rings are provided on the outer circle of each cylinder bottom, piston, external piston and the inner circle of the guide sleeve.

2. An integrated double oil cylinder as claimed in claim 1, characterized in that The connecting blocks are all integrally provided with a ball head, the outer piston is provided with a spherical groove, the front end of the ball head is placed in the spherical groove, the rear end of the ball head is clamped in the cover plate, the cover plate is fixedly connected to the outer piston, and the rear end face of the connecting block is tightly attached to the front end face of the corresponding piston rod and is fixedly connected by bolts.

3. An integrated double oil cylinder as claimed in claim 1 or 2, characterized in that The main cylinder body is also provided with two detection chambers, each of which is provided with a displacement sensor, and the displacement sensors are respectively connected to the isolation body and their respective connection blocks.

4. An integrated double oil cylinder as claimed in claim 1 or 2, characterized in that The oil port of the rod chamber and the oil port of the rodless chamber are both provided with screw plugs.

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