CN204186679U - A kind of big orifice rotates fuel feeding interface - Google Patents

Abstract

The utility model relates to a large-diameter rotary oil supply interface, which comprises a core body, a jacket, a gland and an inlet body. The jacket is sleeved outside the core body and connected with the core body through bearings, the gland is fixedly connected to the jacket; the inlet body is arranged on the jacket; The first oil through hole and the second oil through hole, and the first oil through hole is located in the center of the core and parallel to the core axis; one end of the second oil through hole communicates with the first oil through hole, and the other One end communicates with the opening of the inlet body. The large-diameter rotary oil supply interface of the utility model can effectively prevent the twisting of the hose and ensure a good oil supply effect.

Description

A large diameter rotary oil supply interface

technical field

The utility model relates to an oil supply interface of a hydraulic oil cylinder, in particular to a rotatable oil supply interface of a hydraulic oil cylinder used for oil supply with a large diameter.

Background technique

In the practical application of hydraulic cylinders, some hydraulic cylinders with large piston diameters or fast speeds require oil supply pipes with large diameters (above Φ60mm diameter) to supply oil.

Generally, there are two kinds of large-diameter oil supply pipelines: hard pipe and hose. However, there are certain defects in each of the two: the connection of the hard pipe is easily affected by vibration and becomes loose or twisted; and the large-diameter steel wire braided hose is also very thick, making it difficult to install the hose. The movement of equipment and oil cylinders can easily cause twisting of hoses, resulting in fatigue rupture and affecting normal oil supply.

Utility model content

The purpose of this utility model is to solve the above-mentioned shortcomings and deficiencies of the prior art, and provide a rotatable large-diameter rotary oil supply interface that facilitates the connection of a large-diameter hose to the oil receiving body of a hydraulic cylinder.

The utility model is realized through the following technical solutions: a large-diameter rotary oil supply interface, including a core body, a jacket, a gland and an inlet body. The jacket is sleeved outside the core body and connected with the core body through bearings, the gland is fixedly connected to the jacket; the inlet body is arranged on the jacket; The first oil through hole and the second oil through hole, and the first oil through hole is located in the center of the core and parallel to the core axis; one end of the second oil through hole communicates with the first oil through hole, and the other One end communicates with the opening of the inlet body.

Compared with the prior art, a large-diameter rotary oil supply interface of the utility model can conveniently connect the large-diameter hose for oil supply with the inlet body, and the core body is connected with the oil receiving body of the hydraulic cylinder, and Since the jacket can rotate relative to the core body, that is, the inlet body and the oil receiving body can rotate relative to each other, which can effectively prevent the twisting of the hose and ensure a good oil supply effect.

Further, the outer casing is connected to the core body through a front and a rear bearing respectively. This arrangement can ensure that the outer shell and the core body can rotate with each other.

Further, the gland is pressed on the outer rings of the two bearings at the rear of the casing.

Further, the core body is also provided with a retaining ring, and the retaining ring blocks the inner rings of the two bearings behind the core body. This arrangement prevents the jacket from detaching from the core.

Further, a seal is provided between the core and the outer casing. This setting prevents pressure loss and oil leakage.

For better understanding and implementation, the utility model will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a cross-sectional view of the large-diameter rotary oil supply interface of the present invention.

Detailed ways

Please refer to FIG. 1 , which is a cross-sectional view of the large-diameter rotary oil supply interface of the present invention. The large-diameter rotary oil supply interface 1 of the utility model includes a core body 11 , a jacket 12 , a gland 13 , an inlet body 14 , a first oil hole 15 and a second oil hole 16 .

Specifically, the core 11 is connected to the oil receiving body 2 of the hydraulic cylinder through bolts, and the outer casing 12 is sleeved outside the core 11 and passes through the first bearing 111 in the front and the second bearing 112 in the rear with the core 11 connect. The gland 13 is connected to the outer casing 12 by bolts, and the gland 13 is pressed on the outer rings of the third bearing 113 and the fourth bearing 114 . The inlet body 14 is disposed on the outer casing 12 and is perpendicular to the axial direction of the outer casing 12 . The first oil through hole 15 and the second oil through hole 16 are located inside the core body, the two communicate with each other and form an angle of 90°, and the first oil through hole 15 is located in the center of the core body 11 and connected to the core body 11 is parallel to the axial direction, and one end of the second oil through hole 16 communicates with the first oil through hole 15 , and the other end communicates with the opening of the inlet body 14 .

Further, the core 11 is further provided with a retaining ring 113 , and the retaining ring 113 blocks the inner ring of the second bearing 112 to prevent the casing 12 from being separated from the core 11 . At the same time, a plurality of seals 17 are provided between the core body 11 and the outer casing 12 to prevent pressure loss and oil leakage.

When the large-diameter rotary oil supply interface 1 is used to connect the large-diameter oil supply hose and the hydraulic cylinder, the large-diameter oil supply hose is connected to the inlet body 14, and the open end of the first oil through hole 15 of the core body 11 is connected to the hydraulic cylinder. The oil receiving body 2 is connected, since the core body 11 and the jacket 12 can rotate relatively, that is, the oil receiving body 2 and the inlet body 14 can rotate relatively, so the twisting and breaking of the oil supply hose can be effectively avoided.

Compared with the prior art, a large-diameter rotary oil supply interface 1 of the utility model can conveniently connect the large-diameter hose for oil supply with the inlet body 14, and the core body 11 and the oil receiving body 2 of the hydraulic cylinder connected, and because the jacket 12 can rotate relative to the core body 11, that is, the inlet body 14 and the oil receiving body 2 can rotate relatively, which can effectively prevent the twisting of the hose and ensure a good oil supply effect.

The utility model is not limited to the above-mentioned embodiment, if the various modifications or deformations of the utility model do not depart from the spirit and scope of the utility model, if these changes and deformations belong to the claims of the utility model and within the equivalent technical scope, Then the utility model is also intended to include these modifications and variations.

Claims (5)

1. A large-diameter rotary oil supply interface, characterized in that: it includes a core body, a jacket, a gland and an inlet body; the jacket is sleeved outside the core body and connected to the core body through a bearing, and the gland and the jacket fixed connection; the inlet body is arranged on the jacket; the inside of the core body is provided with a first oil through hole and a second oil through hole that communicate with each other and form an angle of 90°, and the first oil through hole is located in the core The center of the body is parallel to the axial direction of the core body; one end of the second oil through hole communicates with the first oil through hole, and the other end communicates with the opening of the inlet body. 2. The large-diameter rotary oil supply interface according to claim 1, characterized in that: the outer casing is connected to the core body through a front and a rear bearing respectively. 3. The large-diameter rotary oil supply interface according to claim 2, wherein the gland is pressed on the outer rings of the two bearings behind the housing. 4. The large-diameter rotary oil supply interface according to claim 3, characterized in that: the core body is further provided with a retaining ring, and the retaining ring blocks the inner rings of the two bearings behind the core body. 5 . The large-diameter rotary oil supply interface according to claim 4 , wherein a sealing member is provided between the core body and the jacket. 6 .