CN202082524U - Rotating connector - Google Patents

Abstract

The utility model relates to a rotating connector which is mainly applied in hydraulic systems of cranes, land levelers and other machines, and is a connector for connecting hydraulic pipelines at the fixed part and the rotating part in the whole hydraulic system. The rotating connector comprises a rotating body (1) and a rotating shaft (2), and is characterized in that the rotating shaft (2) is axially provided with a central oil drainage hole, four main oilway holes and three low-pressure oil holes; the central oil drainage hole is arranged at the center of the rotating shaft (2), the rotating body (1) is radially provided with four main oil openings and three low-pressure oil openings which are in one-to-one correspondence and communicated with the four main oilway holes and the three low-pressure oil holes in the rotating shaft (2), and a central oil drainage opening is formed in an end cover (4) and is communicated with the central oil drainage oil hole in the rotating shaft (2). By the rotating connector disclosed by the utility model, the fixed part and the rotating part in the hydraulic system can relatively rotate by 360 degrees, the oilways are smooth, and the actions of the oilways are not in serial connection.

Description

Swivel coupling

Technical field

The utility model relates to a kind of swivel coupling, is mainly used in the hydraulic system of machinery such as hoist, grader, is the link that connects standing part and rotating part hydraulic pipe line in the whole hydraulic system.

Background technique

Hoist, grader etc., two-part are need be rotating about it, this just exists the connectivity problem of rotating part and standing part oil circuit.Swivel coupling is made up of solid of rotation, turning axle and lid etc.During use, the revolution lower bolster of solid of rotation and hoist, grader is fixed, and the mounting plate on the turning axle supports with the revolution on the revolution upper mounting plate and is connected.Hydralic hose is installed on respectively on each hydraulic fluid port of solid of rotation and turning axle, and the upper mounting plate of hydraulic machinery then drives the turning axle rotation.

After yet swivel coupling in the past connects the hydraulic pipe line of standing part and rotating part in the hydraulic system, can not allow 360 ° of the relative rotations with rotating part of standing part, cause pipeline to interfere, and oil circuit be upper and lower not smooth, each oil circuit moves connects.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provide in a kind of hydraulic system can rotate 360 ° relatively between the standing part and rotating part, and oil circuit is upper and lower unimpeded the swivel coupling that each oil circuit action is not connected.

The purpose of this utility model is achieved in that

The utility model swivel coupling, comprise solid of rotation and turning axle, described turning axle is made up of upper pipeline linkage section and following construction section, the following construction section of described turning axle inserts in the solid of rotation from the top axial of solid of rotation, described upper pipeline linkage section is exposed to solid of rotation, described turning axle axially offers draining hole, a center, article four, working connection hole and three low pressure oilholes, the center of turning axle is located in draining hole, described center, radially have four main hydraulic fluid ports on the described solid of rotation, three low pressure hydraulic fluid ports with turning axle on four working connection holes, three low pressure oilholes correspondence one by one are connected, and have the center drain tap on the described end cap to be connected with draining hole, center on the turning axle.

The lower end in described four working connection holes is provided with cone blocking, and the upper end of described three low pressure oilholes is provided with plug.

Be provided with the water seal circle between described solid of rotation upper end and the upper pipeline linkage section, there is end cap the lower end of described solid of rotation by bolt, be provided with O type circle between the lower end of described solid of rotation and the end cap, rotating seal ring and dust ring are housed in the annular groove between described solid of rotation and the turning axle.

Compared with prior art, the beneficial effects of the utility model are:

This swivel coupling can connect the hydraulic pipe line of standing part and rotating part in the whole hydraulic system, and makes standing part can rotate 360 ° relatively with rotating part, and pipeline just can not interfere, and it is unimpeded that upper and lower oil circuit can keep, and each oil circuit action is not connected.And this swivel coupling provides multichannel oil circuit, makes hoist, grader can carry out the action of more complexity, has improved its applicability, and is also comparatively convenient during Operation and maintenance, makes that the pipeline life-span is longer.

Description of drawings

Fig. 1 is the Facad structure schematic representation of the utility model swivel coupling.

Fig. 2 is the I-I sectional view of Fig. 1.

Fig. 3 is the plan view of Fig. 1.

Wherein: solid of rotation 1, turning axle 2, upper pipeline linkage section 2.1, following construction section 2.2, water seal circle 3, end cap 4, O type circle 5, rotating seal ring 6, dust ring 7, cone blocking 8, plug 9.

Embodiment

Referring to Fig. 1 to Fig. 3, the utility model relates to a kind of swivel coupling, comprise solid of rotation 1 and turning axle 2, described turning axle 2 is made up of upper pipeline linkage section 2.1 and following construction section 2.2, the following construction section 2.2 of described turning axle 2 inserts in the solid of rotation 1 from the top axial of solid of rotation 1, described upper pipeline linkage section 2.1 is exposed to solid of rotation 1, be provided with water seal circle 3 between described solid of rotation 1 upper end and the upper pipeline linkage section 2.1, described water seal circle 3 is used to prevent gas leak or enters, the described lower end of construction section 2.2 down and the lower end horizontal alignment of solid of rotation 1, there is end cap 4 lower end of described solid of rotation 1 by bolt, be provided with O type circle 5 between the lower end of described solid of rotation 1 and the end cap 4, rotating seal ring 6 and dust ring 7 are housed in the annular groove between described solid of rotation 1 and the turning axle 2.

As Fig. 2, described turning axle 2 axially offers draining hole, a center, article four, working connection hole and three low pressure oilholes, draining hole, described center is the H hole among Fig. 2 and Fig. 3, described four working connection holes are Fig. 1, A hole among Fig. 2 and Fig. 3, the B hole, C hole and D hole, described three low pressure oilholes are Fig. 1, E hole among Fig. 2 and Fig. 3, F hole and G hole, described center draining hole H is located at the center of turning axle 2, the termination, upper end of described three low pressure oilholes is blocked with plug 9, the lower end in described four working connection holes is provided with cone blocking 8, and described cone blocking 8 is blocked the lower end in four working connection holes.

As Fig. 1 and Fig. 2, corresponding to the draining hole, a center on the turning axle 2, four working connection holes and three low pressure oilholes, radially have on the described solid of rotation 1 four main hydraulic fluid ports, three low pressure hydraulic fluid ports with turning axle 2 on four working connection holes, three corresponding one by one being connected of low pressure oilhole, have the center drain tap on the described end cap 4 to be connected with draining hole, center H on the turning axle 2, described four main hydraulic fluid ports are A mouth, B mouth, C mouth, D mouth, described three low pressure hydraulic fluid ports are E mouth, F mouth and G mouth, and described center drain tap is the H mouth.

Claims (3)

1. swivel coupling, comprise solid of rotation (1) and turning axle (2), it is characterized in that: described turning axle (2) is made up of upper pipeline linkage section (2.1) and following construction section (2.2), the following construction section (2.2) of described turning axle (2) inserts in the solid of rotation (1) from the top axial of solid of rotation (1), described upper pipeline linkage section (2.1) is exposed to solid of rotation (1), described turning axle (2) axially offers draining hole, a center, article four, working connection hole and three low pressure oilholes, the center of turning axle (2) is located in draining hole, described center, radially have four main hydraulic fluid ports on the described solid of rotation (1), three low pressure hydraulic fluid ports with turning axle (2) on four working connection holes, three low pressure oilholes correspondence one by one are connected, and have the center drain tap on the described end cap (4) to be connected with draining hole, center on the turning axle (2).

2. a kind of swivel coupling according to claim 1 is characterized in that: the lower end in described four working connection holes is provided with cone blocking (8), and the upper end of described three low pressure oilholes is provided with plug (9).

3. a kind of swivel coupling according to claim 1, it is characterized in that: be provided with water seal circle (3) between described solid of rotation (1) upper end and the upper pipeline linkage section (2.1), there is end cap (4) lower end of described solid of rotation (1) by bolt, be provided with O type circle (5) between the lower end of described solid of rotation (1) and the end cap (4), rotating seal ring (6) and dust ring (7) are housed in the annular groove between described solid of rotation (1) and the turning axle (2).

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