Hydraulic dam and using method thereof

Abstract

The invention discloses a hydraulic dam and a using method thereof. The hydraulic dam comprises a cylinder barrel; the rear cover is mounted at the rear end of the cylinder barrel; the front sealing sleeve is mounted at the front end of the cylinder barrel; the piston is installed in the cylinder barrel in a sliding mode, and the interior of the cylinder barrel is divided into a first cavity and a second cavity by the piston; the first end of the piston rod is connected with the piston, and the second end of the piston rod extends out of the front sealing sleeve. And the rotary joint is rotationally mounted on the cylinder barrel and can be communicated with the first cavity and / or the second cavity, even if the oil cylinder swings, the joint can also do circumferential rotation, the oil pipe is fixed, and the oil pipe cannot be snapped and equipment cannot be damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic dams, and in particular relates to a hydraulic dam and a use method thereof. Background Art

[0002] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0003] In traditional technology, the joint of the hydraulic cylinder is a fixed structure. When the oil pipe connecting the cylinder is silted up or frozen, if the gate is raised or lowered, the oil pipe will be pulled off or torn as the cylinder swings, causing damage to the equipment.

[0004] CN209370193U-A hydraulic cylinder capable of effectively preventing a piston rod and a piston from rotating around the axis of the hydraulic cylinder, discloses a hydraulic cylinder capable of effectively preventing a piston rod and a piston from rotating around the axis of the hydraulic cylinder, comprising a barrel body and a stop rod, a blind hole is opened on one side wall of a cylinder head, the other end of the piston rod passes through the blind hole and out of the cylinder head, a sealing member is fitted on the piston rod, an oil outlet pipe is fixedly embedded in the cylinder head, the top of the oil outlet pipe is communicated with the blind hole, the cylinder tail, the cylinder head and the barrel body form a closed cavity, the other end of the stop rod passes through the seal, out of the piston, passes through the vertical plate and is inserted into the cylinder tail, and the cylinder tail is fixedly connected to the stop rod, but the above-mentioned technical problems cannot be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a hydraulic dam and a method for using the same, wherein even if the oil cylinder swings, the joint can also rotate in a circle, the oil pipe does not move, and the oil pipe will not be broken, thereby damaging the equipment.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a hydraulic dam having:

[0007] Cylinder barrel;

[0008] A rear cover, mounted at the rear end of the cylinder;

[0009] A front sealing sleeve, mounted at the front end of the cylinder;

[0010] A piston is slidably mounted in the cylinder, and the piston divides the interior of the cylinder into a first cavity and a second cavity;

[0011] A piston rod, a first end of which is connected to the piston, and a second end of which extends out of the front sealing sleeve;

[0012] A rotary joint is rotatably mounted on the cylinder barrel, and the rotary joint can be connected to the first cavity and / or the second cavity.

[0013] A hinge shaft is also provided on the outer periphery of the cylinder barrel, and the rotary joint is rotatably mounted on the hinge shaft.

[0014] A rotary joint is respectively provided on both sides of the hinge shaft, and the two rotary joints are respectively connected to the first cavity and the second cavity.

[0015] The rotary joint has:

[0016] A sleeve having a mounting hole therein;

[0017] An inner core, rotatably mounted in the mounting hole of the sleeve;

[0018] An oil channel groove is provided on the inner core;

[0019] A connecting oil passage is arranged in the inner core, and the connecting oil passage is connected with the oil passage groove;

[0020] An oil outlet hole is arranged in the inner core, the oil outlet hole is connected with the oil passage, and the oil outlet hole passes through the inner core and is connected with the outside.

[0021] A joint is connected to the sleeve, and the joint is communicated with the oil channel groove.

[0022] The sleeve and the inner core are sealed by a sealing structure.

[0023] The sealing structure is a connecting sealing ring; a second mounting groove for mounting the connecting sealing ring is provided on the inner core.

[0024] A connector is provided on the first end of the inner core, a first mounting groove is provided on the connector, a mounting sealing ring is provided on the first mounting groove, an inner hole groove matching the oil channel groove is provided on the inner wall of the mounting hole of the sleeve, and the connector is connected to the inner hole groove.

[0025] An end face is provided on the second end of the inner core, and the end face is sealed and connected to the end of the sleeve through an end face sealing ring. A connecting bolt is also provided on the inner core.

[0026] During the swinging process of the cylinder barrel, the rotary joint can rotate relative to the cylinder barrel, so that the oil pipe does not rotate with the cylinder barrel.

[0027] One of the above technical solutions has the following advantages or beneficial effects: even if the oil cylinder swings, the joint can also rotate in a circle, the oil pipe does not move, and the oil pipe will not be broken, thereby damaging the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a hydraulic dam provided in an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the cylinder of the hydraulic dam;

[0030] Figure 3 for Figure 1A schematic diagram of the structure of the cylinder of the hydraulic dam;

[0031] Figure 4 for Figure 1 A schematic diagram of the structure of the cylinder of the hydraulic dam;

[0032] Figure 5 for Figure 1 A schematic diagram of the structure of the cylinder of the hydraulic dam;

[0033] Figure 6 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0034] Figure 7 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0035] Figure 8 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0036] Fig. 9 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0037] Fig.10 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0038] Fig.11 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0039] Fig.12 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0040] Fig.13 for Figure 1 A schematic diagram of the structure of the rotary joint of the hydraulic dam;

[0041] The marks in the above figures are: 1, sleeve, 11, mounting hole, 12, inner hole groove, 2, inner core, 21, oil channel groove, 211, connecting oil channel, 22, oil outlet hole, 23, connector, 231, first mounting groove, 24, second mounting groove, 25, end face, 3, joint, 4, connecting bolt, 5, mounting sealing ring, 6, connecting sealing ring, 7, end face sealing ring;

[0042] 81. Cylinder barrel, 82. Rear cover, 83. Front sealing sleeve, 84. Oil port seat, 85. Piston rod, 86. Hinge shaft, 87. Piston, 88. First cavity, 89. Second cavity. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 13 A hydraulic dam comprises: a cylinder 81; a rear cover 82, mounted at the rear end of the cylinder 81; a front sealing sleeve 83, mounted at the front end of the cylinder 81; a piston 87, slidably mounted in the cylinder 81, the piston dividing the inside of the cylinder 81 into a first cavity 88 and a second cavity 89; a piston rod 85, the first end of which is connected to the piston 87, the second end of which extends out of the front sealing sleeve 83; a rotary joint, rotatably mounted on the cylinder 81, the rotary joint can be connected to the first cavity 88 and / or the second cavity 89. Even if the oil cylinder swings, the joint can also rotate in a circle, the oil pipe does not move, and the oil pipe will not be pulled off to damage the equipment.

[0045] A hinge shaft 86 is also provided on the outer periphery of the cylinder 81, and a rotary joint is rotatably mounted on the hinge shaft 86. A screw hole is provided at the end of the hinge shaft for mounting the rotary joint. A rotary joint is provided on each side of the hinge shaft 86, and the two rotary joints are respectively connected to the first cavity and the second cavity, and serve as the inlet and outlet of the hydraulic oil in the two cavities, so as to realize the movement of the piston 87.

[0046] The rotary joint comprises: a sleeve 1, which is provided with a mounting hole 11; an inner core 2, which is rotatably mounted in the mounting hole 11 of the sleeve 1; an oil channel groove 21, which is arranged on the inner core 2; a connecting oil channel 211, which is arranged in the inner core 2, and the connecting oil channel 211 is connected to the oil channel groove 21; an oil outlet hole 22, which is arranged in the inner core 2, and the oil outlet hole 22 is connected to the connecting oil channel 211, and the oil outlet hole 22 passes through the inner core 2 and is connected to the outside. The sleeve 1 can rotate around the inner core 2, and even if the oil cylinder swings, the joint 3 can also rotate in a circle, and the oil pipe does not move, and the oil pipe will not be broken, thereby damaging the equipment. The joint 3 on the sleeve 1 is connected to the oil outlet hole 22 through the oil channel groove 21 and the connecting oil channel 211, and can always remain connected during the rotation of the sleeve 1.

[0047] The joint 3 is connected to the sleeve 1, and the joint 3 is connected to the oil channel groove 21. The joint 3 on the sleeve 1 is connected to the oil outlet hole 22 through the oil channel groove 21 and the connecting oil channel 211, and can always be connected during the rotation of the sleeve 1.

[0048] The sleeve 1 and the inner core 2 are sealed by a sealing structure. The sealing structure is a connecting sealing ring 6. The inner core 2 is provided with a second mounting groove 24 for mounting the connecting sealing ring 6, which plays a sealing role.

[0049] A connector 23 is provided on the first end of the inner core 2 and can be connected to a hydraulic cylinder.

[0050] The connector 23 is provided with a first mounting groove 231 , and the first mounting groove 231 is provided with a mounting sealing ring 5 to play a sealing role.

[0051] The inner wall of the mounting hole 11 of the sleeve 1 is provided with an inner hole groove 12 adapted to the oil channel groove 21, and the joint 3 is connected to the inner hole groove 12. The joint 3 on the sleeve 1 is connected to the oil outlet hole 22 through the oil channel groove 21 and the connecting oil channel 211, and can always be connected during the rotation of the sleeve 1.

[0052] An end face is provided on the second end of the inner core 2, and the end face is sealed and connected to the end of the sleeve 1 via an end face sealing ring 7 to play a sealing role.

[0053] The inner core 2 is also provided with connecting bolts 4 , and the inner core 2 is fixedly connected to the hydraulic cylinder via the connecting bolts 4 , so that the sleeve 1 can rotate around the inner core 2 .

[0054] After adopting the above structure, even if the oil cylinder swings, the joint can also make a circular rotation, the oil pipe does not move, and the oil pipe will not be broken to damage the equipment.

[0055] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic dam, characterized in that: have: Cylinder barrel; A rear cover, mounted at the rear end of the cylinder; A front sealing sleeve, mounted at the front end of the cylinder; A piston is slidably mounted in the cylinder, and the piston divides the interior of the cylinder into a first cavity and a second cavity; A piston rod, a first end of which is connected to the piston, and a second end of which extends out of the front sealing sleeve; A rotary joint is rotatably mounted on the cylinder barrel, and the rotary joint can be connected to the first cavity and / or the second cavity.

2. The hydraulic dam according to claim 1, characterized in that: A hinge shaft is also provided on the outer periphery of the cylinder barrel, and the rotary joint is rotatably mounted on the hinge shaft.

3. The hydraulic dam according to claim 2, characterized in that: A rotary joint is respectively provided on both sides of the hinge shaft, and the two rotary joints are respectively connected to the first cavity and the second cavity.

4. The hydraulic dam according to claim 3, characterized in that: The rotary joint has: A sleeve having a mounting hole therein; An inner core, rotatably mounted in the mounting hole of the sleeve; An oil channel groove is provided on the inner core; A connecting oil passage is arranged in the inner core, and the connecting oil passage is connected with the oil passage groove; An oil outlet hole is arranged in the inner core, the oil outlet hole is connected with the oil passage, and the oil outlet hole passes through the inner core and is connected with the outside. A joint is connected to the sleeve, and the joint is communicated with the oil channel groove.

5. The hydraulic dam according to claim 4, characterized in that: The sleeve and the inner core are sealed by a sealing structure.

6. The hydraulic dam according to claim 5, characterized in that: The sealing structure is a connecting sealing ring; a second mounting groove for mounting the connecting sealing ring is provided on the inner core.

7. The hydraulic dam according to claim 6, characterized in that: A connector is provided on the first end of the inner core, a first mounting groove is provided on the connector, a mounting sealing ring is provided on the first mounting groove, an inner hole groove matching the oil channel groove is provided on the inner wall of the mounting hole of the sleeve, and the connector is connected to the inner hole groove.

8. The hydraulic dam according to claim 7, characterized in that: An end face is provided on the second end of the inner core, and the end face is sealed and connected to the end of the sleeve through an end face sealing ring. A connecting bolt is also provided on the inner core.

9. The method for using a hydraulic dam according to any one of claims 1 to 8, characterized in that: During the swinging process of the cylinder barrel, the rotary joint can rotate relative to the cylinder barrel, so that the oil pipe does not rotate with the cylinder barrel.

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