CN201145107Y - Hydraulic central swivel joint with electrical brush for large-scale machine - Google Patents

Abstract

The utility model relates to a hydraulic central swivel connection with an electric brush used for large machinery, which is mainly used in whole hydraulic systems of machines such as excavating machines, hoisting machines, land scrapers, tower cranes and so on. The hydraulic central swivel connection comprises a revolving body (1) and a revolving shaft (2), wherein, the revolving shaft (2) is axially inserted into the revolving body (1) from the front end of the revolving body (1), the front end of the revolving shaft (2) extends out of the revolving body (1), and the revolving shaft (2) is axially provided with a plurality of oil passage holes. The hydraulic central swivel connection is characterized in that: the rear end of the revolving shaft (2) is fixedly connected with an electric brush holder (14), the electric brush holder (14) is fixedly connected with the electric brush (16), the rear end of the electric brush holder (14) is fixedly connected with an end cover (3), and the electric brush (16) is arranged in the end cover (3). The hydraulic central swivel connection adopts an electric brush structure, is suitable for the communication of ordinary oil passages, and is also suitable for being applied on occasions where unlimited, continuous or interrupted rotation is needed and power or data also needs to be transferred from fixed positions to rotating positions at the same time.

Description

The large-sized machinery hydraulic central authorities swivel coupling of charged brush

Technical field

The utility model relates to the central swivel coupling of a kind of hydraulic pressure.Be mainly used in the whole hydraulic system of machineries such as excavator, hoist, grader, tower crane.Be to connect the hydraulic pipe line of fixing in the whole hydraulic system with rotating part.

Background technique

Conventional hydraulic shovel, hoist etc., two-part revolution is to adopt general hydraulic pressure central authorities swivel coupling traction about it.General hydraulic pressure central authorities swivel coupling is made up of solid of rotation, turning axle, end cap and Sealing.During use, the revolution lower bolster of solid of rotation and hydraulic shovel, hoist machinery is fixed, and the turning axle upper mounting plate 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.The upper mounting plate of hydraulic machinery drives the turning axle rotation.Whole hydraulic system connects by the upper and lower pipeline of solid of rotation, makes upper and lower two parts of hydraulic shovel have 360 ° of relative rotation motions, and pipeline does not interfere, and upper and lower oil circuit is unimpeded, and each oil circuit action is not connected.Because the not charged brush of conventional hydraulic pressure central authorities' swivel coupling, the oil circuit that can only make upper and lower two part machinery hydraulic systems is communicated with, and do not possess functions such as delivering power or data, therefore its using scope is restricted, can only be applicable to the machinery that only needs oil circuit to be communicated with, and can not be applicable to from the fixed position to the place of rotational position delivering power or data.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of connection that is not only applicable to the conventional oil road is provided, and can also be applicable to from the fixed position to the large-sized machinery hydraulic central authorities swivel coupling of the charged brush in rotational position delivering power or data place.

The purpose of this utility model is achieved in that a kind of large-sized machinery hydraulic central authorities swivel coupling of charged brush, comprise solid of rotation and turning axle, described turning axle axially inserts in the solid of rotation from the solid of rotation front end, and the turning axle front end stretches out outside the solid of rotation, axially offer many oil circuit holes on the described turning axle, be used for passing through of brush lead.Described turning axle rear end is fixedly connected with brushgear housing, is fixedly connected with brush on the brushgear housing, and the brushgear housing rear end is fixedly connected with end cap, and brush is arranged in the end cap.

The utility model hydraulic pressure central authorities swivel coupling adopts the brush structure, be not only applicable to the connection on conventional oil road, can also be fit to be applied in unconfined, the continuous or interrupted rotation of needs, need again from the fixed position to the place of rotational position delivering power or data simultaneously.

This product is mainly used in above upper and lower two major parts of all-hydraulic large-scale engineering machinery of 20T, have 360 ° of relative rotation motions, the pipeline that is hydraulic system connects, whole hydraulic system connects by the upper and lower pipeline of solid of rotation, and needs from the fixed position to the machinery in rotational position delivering power or data place.

Description of drawings

Fig. 1 is the External view of the large-sized machinery hydraulic central authorities swivel coupling of the charged brush of the utility model.

Fig. 2 is the rear view of Fig. 1.

Fig. 3 is the internal structure schematic representation of the large-sized machinery hydraulic central authorities swivel coupling of the charged brush of the utility model.

Fig. 4 is the right side view of Fig. 3.

Fig. 5 is the left side view of Fig. 3.

Fig. 6 is the brush of model utility and the assembling relationship figure between turning axle and the solid of rotation.

Fig. 7 is the exploded view of Fig. 6.

Among the figure: solid of rotation 1, turning axle 2, end cap 3, spacer 4, pad 5, pad 6, seal ring 7, dust ring 8, O shape circle 9, O shape circle 10, circlip 11, hexagon head bolt 12, spring washer 13, brushgear housing 14, hexagon socket cap head screw 15, brush 16.

Embodiment

As Fig. 1～5, the utility model is a kind of large-sized machinery hydraulic central authorities swivel coupling of charged brush, mainly is made up of solid of rotation 1, turning axle 2, brush 16, brushgear housing 14 and end cap 3.

Described turning axle 2 axially inserts in the solid of rotation 1 from solid of rotation 1 front end, and turning axle 2 front ends stretch out outside the solid of rotation 1, sets dust ring 8, O shape circle 9 and seal ring 7 successively from A-P between turning axle 2 and solid of rotation 1 mating face.

As Fig. 3,6 and 7, described brushgear housing 14 usefulness hexagon socket cap head screws 15 and pad 6 are fixedly connected on turning axle 2 rear ends, brushgear housing 14 is set O shape circle 10, circlip 11, spacer 4 and pad 5 with turning axle 2 mating faces, described brush 16 usefulness dowel fixes are connected in brushgear housing 14 rear ends, described end cap 3 usefulness hexagon head bolts 12 and spring washer 13 are fixedly connected on brushgear housing 14 rear ends, as Fig. 5, and brush 16 is arranged in the end cap 3.

As Fig. 3, axially offer eight oil circuit holes on the described turning axle 2, wherein a center that is arranged in turning axle 2 as the G hole among Fig. 3, is the draining hole, article four, be arranged in the periphery in draining hole, be referred to as the working connection hole, as the A hole among Fig. 4, B hole, C hole and D hole, its excess-three bar is arranged in the periphery in working connection hole, be referred to as low pressure oil circuit hole, as the E hole among Fig. 4, F hole and H hole.

Corresponding to four working connection holes on the turning axle 2, radially also offer four main hydraulic fluid ports on the solid of rotation 1, as the A mouth among Fig. 3, B mouth, C mouth and D mouth.Corresponding one by one being connected of four main hydraulic fluid ports on four working connection holes on the turning axle 2 and the solid of rotation 3; Three low pressure oil circuit holes corresponding on the turning axle 2 radially also offer three low pressure hydraulic fluid ports on the solid of rotation 1, as the E mouth among Fig. 3, F mouth and H mouth, and corresponding one by one being connected of three low pressure hydraulic fluid ports on three low pressure oil circuit holes on the turning axle 2 and the solid of rotation 1; Corresponding to the draining hole at turning axle 2 centers, radially also offer a drain tap on the solid of rotation 1, as the G mouth among Fig. 3, the draining hole at turning axle 2 centers is connected with drain tap on the solid of rotation 1.

The utility model is not limited only to above-mentioned eight oil circuits, can also be applicable to the hydraulic pressure central authorities swivel coupling of other many oil circuits.

Claims (2)

1, a kind of large-sized machinery hydraulic of charged brush central authorities swivel coupling, comprise solid of rotation (1) and turning axle (2), described turning axle (2) axially inserts in the solid of rotation (1) from solid of rotation (1) front end, and turning axle (2) front end stretches out outside the solid of rotation (1), axially offer many oil circuit holes on the described turning axle (2), it is characterized in that described turning axle (2) rear end is fixedly connected with brushgear housing (14), be fixedly connected with brush (16) on the brushgear housing (14), brushgear housing (14) rear end is fixedly connected with end cap (3), and brush (16) is arranged in the end cap (3).

2, the large-sized machinery hydraulic of a kind of charged brush according to claim 1 central authorities swivel coupling, it is characterized in that: in described many oil circuit holes, center that is arranged in turning axle (2) wherein, be the draining hole, several the peripheries that are arranged in the draining hole, be referred to as the working connection hole, also have several the peripheries that are arranged in the working connection hole, be referred to as low pressure oil circuit hole, corresponding to the working connection hole on the turning axle (2), radially also offer several main hydraulic fluid ports on the solid of rotation (1), corresponding one by one being connected of main hydraulic fluid port on the working connection hole on the turning axle (2) and the solid of rotation (3); Several low pressure oil circuit holes corresponding on the turning axle (2) radially also offer several low pressure hydraulic fluid ports on the solid of rotation (1), corresponding one by one being connected of low pressure hydraulic fluid port on the low pressure oil circuit hole on the turning axle (2) and the solid of rotation (1); Corresponding to the draining hole at turning axle (2) center, radially also offer a drain tap on the solid of rotation (1), the draining hole at turning axle (2) center is gone up drain tap with solid of rotation (1) and is connected.

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