阅读说明：本技术 一种旋转接头、油缸铰座一体式油缸 (Rotary joint and oil cylinder hinged support integrated oil cylinder ) 是由 张坚 周骞 于 2019-08-22 设计创作，主要内容包括：一种旋转接头、油缸铰座一体式油缸,它主要是解决现有拦河坝使用的液压油泵采用高压软管易老化破损,可靠性、耐久性低,检修不方便等技术问题。其技术方案要点是：它包括油缸铰座一体式旋转接头(1)、缸体(2)、活塞杆(3)、无杆腔管路(4)和有杆腔管路(5),活塞杆(3)套装在缸体(2)内,使缸体形成有杆腔和无杆腔,无杆腔管路(4)和有杆腔管路(5)通过旋转接头套(11)安装在油缸铰座一体式旋转接头(1)两端,分别通过油路通道与无杆腔、有杆腔连通。它主要是应用于拦河坝。(The utility model provides a rotary joint, hydro-cylinder free bearing integral type hydro-cylinder, it mainly solves the hydraulic oil pump that current barrage used and adopts high-pressure hose easy ageing damaged, and reliability, durability are low, overhaul technical problem such as inconvenient. The key points of the technical scheme are as follows: the oil cylinder hinged support integrated rotary joint comprises an oil cylinder hinged support integrated rotary joint (1), a cylinder body (2), a piston rod (3), a rodless cavity pipeline (4) and a rod cavity pipeline (5), wherein the piston rod (3) is sleeved in the cylinder body (2) to enable the cylinder body to form a rod cavity and a rodless cavity, the rodless cavity pipeline (4) and the rod cavity pipeline (5) are installed at two ends of the oil cylinder hinged support integrated rotary joint (1) through rotary joint sleeves (11), and are respectively communicated with the rodless cavity and the rod cavity through oil channel passages. It is mainly applied to barrages.)

1. The utility model provides a rotary joint, hydro-cylinder free bearing integral type hydro-cylinder, characterized by: the oil cylinder hinged support integrated rotary joint comprises an oil cylinder hinged support integrated rotary joint (1), a cylinder body (2), a piston rod (3), a rodless cavity pipeline (4) and a rod cavity pipeline (5), wherein the piston rod (3) is sleeved in the cylinder body (2) to enable the cylinder body to form a rod cavity and a rodless cavity, the rodless cavity pipeline (4) and the rod cavity pipeline (5) are installed at two ends of the oil cylinder hinged support integrated rotary joint (1) through rotary joint sleeves (11), and are respectively communicated with the rodless cavity and the rod cavity through oil channel passages.

2. The swivel joint and oil cylinder hinged support integrated oil cylinder according to claim 1, characterized in that: and an oil path channel is arranged in the oil cylinder hinged support integrated rotary joint (1) and is respectively communicated with a rodless cavity pipeline (4) and a rodless cavity, a rod cavity pipeline (5) and a stainless steel pipe from the rod cavity.

3. The swivel joint and oil cylinder hinged support integrated oil cylinder according to claim 1, characterized in that: an annular notch (12) is formed in the oil cylinder hinged support integrated rotary joint (1), so that an oil path channel in the oil cylinder hinged support integrated rotary joint (1) is communicated with a rotary joint sleeve (11), and the rotary joint sleeve (11) is communicated with a rodless cavity pipeline (4) or a rod cavity pipeline (5).

4. The swivel joint and oil cylinder hinged support integrated oil cylinder according to claim 1 or 3, characterized in that: a combined seal (14) and a sealing ring (13) are arranged on the outer side of the annular gap (12) in the oil cylinder hinged support integrated rotary joint (1).

5. The swivel joint and oil cylinder hinged support integrated oil cylinder according to claim 1, characterized in that: oil plugs (17) are arranged on two end faces of the oil cylinder hinged support integrated rotary joint (1), and a copper combined pad (15) and a stainless steel baffle (16) are arranged between the oil cylinder hinged support integrated rotary joint (1) and the oil plugs (17) in a padded mode.

Technical Field

The invention relates to an oil cylinder with an integrated rotary joint and an oil cylinder hinged support.

Background

The hydraulic oil cylinder for lifting the dam door of the hydraulic lifting dam has the advantages that the hydraulic oil cylinder generates swing motion along with the lifting of the door body, so that the A, B oil port of the hydraulic oil cylinder can only be externally connected with a high-pressure hose which is positioned at the bottom of a river bed, the bottom of the river bed is submerged for a long time and has sediments, the hydraulic oil cylinder is easy to age and damage, and once the high-pressure hose bursts, the door body supported by the hydraulic oil cylinder collapses in a gravity acceleration mode, so that great potential safety hazards are caused. Because the hydraulic pressure lift dam is located the inside special service environment of riverbed, need hold back out one section anhydrous region when needing to change the high-pressure hose, make maintenance work very inconvenient.

The hydraulic lifting dam has the prominent problem that the hydraulic lifting dam cannot be lowered for flood discharge due to various faults when flood comes in flood season. The dam descending mode of the hydraulic lifting dam is that a main hydraulic cylinder works and builds pressure, an electromagnetic (electro-hydraulic) reversing valve is used for electrically switching oil to a door ascending state, the dam face is lifted by a certain height, so that a supporting rod does not exert pressure on a locking mechanism any more, then a small hydraulic cylinder pushes the supporting rod away, the main hydraulic cylinder retracts, the dam face descends, and the supporting rod slides out of the locking mechanism. Therefore, the precondition of dam descending and flood discharging is that the dam descending and flood discharging can not be realized when the hydraulic system is powered on and is powered off or fails due to severe natural weather conditions such as rainstorm and lightning stroke. Therefore, the hydraulic lifting dam without the supporting rod structure is formed, in rivers with normal water on two sides, when a dam gate falls down, in order to overcome buoyancy of water on the back of the dam gate, a double-acting hydraulic cylinder is used for lifting the dam gate, when the hydraulic lifting dam gate is used as long-term support, although a hydraulic pipeline system does not leak oil outwards, if internal leakage is formed between a piston of the double-acting hydraulic cylinder and a cylinder barrel of the hydraulic cylinder, a rodless cavity is communicated with oil through the piston of the hydraulic cylinder towards a rod cavity, the internal leakage is extremely unfavorable for long-term dam face support, the whole dam face can slowly fall, multiple dam faces cannot maintain the horizontal plane, and meanwhile, the multiple dam faces are difficult to adjust the uniform height.

The reliability and the durability of the whole use of the hydraulic lifting dam cannot be guaranteed due to the reasons, the research aims at improving the problems existing in the whole use of the hydraulic lifting dam, and after a high-pressure hose is cancelled, even if a sealing member between a joint body of an integral oil cylinder hinged support and a rotary joint sleeve leaks, a door body only slowly descends, and the major accident that the door body supported by an oil cylinder collapses in the form of gravity acceleration after the high-pressure hose bursts cannot occur. And the defects that the high-pressure hose is easy to age and damage in the open-air sunshine exposure environment and the like are avoided, and the overhaul and maintenance period is prolonged.

Disclosure of Invention

The invention aims to provide a rotary joint and an oil cylinder hinged support integrated oil cylinder, the oil cylinder hinged support integrated rotary joint can move along with an oil cylinder body, a high-pressure hose is not needed, the overhaul and maintenance period is prolonged, and the service life of the oil cylinder is prolonged.

The technical scheme adopted by the invention for solving the technical problems is as follows: the oil cylinder hinged support integrated rotary joint comprises an oil cylinder hinged support integrated rotary joint 1, a cylinder body 2, a piston rod 3, a rodless cavity pipeline 4 and a rod cavity pipeline 5, wherein the piston rod 3 is sleeved in the cylinder body 2, so that a rod cavity and a rodless cavity are formed in the cylinder body, the rodless cavity pipeline 4 and the rod cavity pipeline 5 are installed at two ends of the oil cylinder hinged support integrated rotary joint 1 through rotary joint sleeves 11 and are respectively communicated with the rodless cavity and the rod cavity through oil passage channels.

And oil passages are arranged in the oil cylinder hinged support integrated rotary joint 1 and respectively communicated with a rodless cavity pipeline 4 and a rodless cavity, and a rod cavity pipeline 5 and a stainless steel pipe from the rod cavity.

An annular gap 12 is formed in the oil cylinder hinged support integrated rotary joint 1, so that an oil path channel in the oil cylinder hinged support integrated rotary joint 1 is communicated with a rotary joint sleeve 11, and the rotary joint sleeve 11 is communicated with a rodless cavity pipeline 4 or a rod cavity pipeline 5.

A combined seal 14 and a sealing ring 13 are arranged on the outer side of the annular gap 12 in the oil cylinder hinged support integrated rotary joint 1.

Oil plugs 17 are arranged on two end faces of the oil cylinder hinged support integrated rotary joint 1, and a copper combined pad 15 and a stainless steel baffle 16 are arranged between the oil cylinder hinged support integrated rotary joint 1 and the oil plugs 17 in a cushioning mode.

The invention has the beneficial effects that: the integral rotary joint of the oil cylinder hinged support can move along with the oil cylinder body, a high-pressure hose is not needed, the overhaul and maintenance period is prolonged, and the service life of the oil cylinder is prolonged. The hydraulic lifting device is mainly applied to hydraulic lifting oil cylinders of barrages.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a view a-a of fig. 1.

In the figure: 1-oil cylinder hinged support integrated rotary joint, 11-rotary joint sleeve, 12-annular gap, 13-sealing ring, 14-combined seal, 15-copper combined cushion, 16-stainless steel baffle, 17-oil plug, 2-cylinder body, 3-piston rod, 4-rodless cavity pipeline and 5-rod cavity pipeline.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.