CN201447727U - Novel hydraulic central swivel connector with electric brush - Google Patents

Abstract

The utility model relates to a novel hydraulic central swivel connector with an electric brush, which is mainly used in a whole hydraulic system of machines such as a large-tonnage tower crane and the like. The hydraulic central swivel connector comprises a swivel body (4) and a swivel shaft (5), wherein the small end of the swivel shaft (5) is axially inserted into the swivel body (4) from the rear end of the swivel body (4); the big end of the swivel shaft (5) extends out of the rear end of the swivel body (4); the outer edge of the big end of the swivel shaft (5) near the rear end of the swivel body (4) is fixedly connected with a locating plate (7); an electric brush (15) is fixedly arranged at the small end of the swivel shaft (5); the swivel shaft (5) is axially provided with eight main oil-way holes and a central line hole; and correspondingly to the eight main oil-way holes and the central line hole on the swivel shaft (5) one to one, the swivel body (4) and a cap (2) are respectively and radially provided with eight main oil ports and a plurality of circuits. The novel hydraulic central swivel connector can lead a swivel part and a fixing part to swivel 360 degrees without the interference of a pipeline, the upper and the lower oil ways are unobstructed, and the actions of all the oil ways are not connected in series.

Description

The central swivel coupling of novel charged brush hydraulic pressure

(1) technical field

The utility model relates to the central swivel coupling of a kind of novel charged brush hydraulic pressure.Be mainly used in the whole hydraulic system of machineries such as large-tonnage excavator, crane, land leveller, tower crane.Be to connect standing part and the fluid pressure line of rotating part and the connector of circuit in whole hydraulic system and the circuit.

(2) background technology

Hydraulic crawler excavator, loop wheel machine etc., two parts are need be rotating about it, this just exists the oil circuit and the circuit connectivity problem of rotating part and standing part.The central swivel coupling of novel charged brush hydraulic pressure is exactly to be used for connecting fluid pressure line and the circuit of fixing in whole hydraulic system and the circuit with rotating part.Central authorities' swivel coupling is made up of revolving body, gyroaxis and lid etc.During use, the revolution lower platform of revolving body and hydraulic crawler excavator, crane machinery is fixed, and the gyroaxis upper mounting plate supports with the revolution on the revolution upper mounting plate and is connected.Hydralic hose and electric wire are installed on respectively on each hydraulic fluid port and circuit of revolving body and gyroaxis.The upper mounting plate of hydraulic machinery drives the gyroaxis rotation.

Before the utility model is made, can not relative gyration between the revolving body of present novel charged brush hydraulic pressure central authorities swivel coupling and the gyroaxis 360 °, cause pipeline and circuit to interfere, upper and lower not smooth, each oil circuit and circuit operation are connected.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of rotating part and standing part of making can relative rotate the central swivel coupling of novel charged brush hydraulic pressure that 360 ° of pipelines do not interfere, upper and lower oil circuit is unimpeded, each oil circuit action is not connected.

The purpose of this utility model is achieved in that the central swivel coupling of a kind of novel charged brush hydraulic pressure, comprise revolving body and gyroaxis, the little head end of described gyroaxis axially inserts in the revolving body from the revolving body rear end, and the gyroaxis microcephaly holds axle head to fix with baffle plate, the revolving body rear end is fixing with block, described gyroaxis stub end stretches out outside the revolving body rear end, and the gyroaxis stub end is fixedly connected with location-plate near revolving body rear end outer rim; Be fixed with brush at the little head end of gyroaxis; Axially offer eight working connection holes and circuit hole, a center in the described gyroaxis, circuit hole, described center is arranged in the gyroaxis center, article eight, the working connection hole is arranged in the periphery in circuit hole, center, and the oil-in in described eight working connection holes all is arranged on the outer rim of gyroaxis stub end; Corresponding to eight working connection holes on the gyroaxis and circuit hole, a center, radially have respectively on described revolving body and the block eight main hydraulic fluid ports and multiplex circuit with gyroaxis on eight working connection holes and circuit hole, a center corresponding one by one.Article eight, and described swivel coupling fuel-displaced with gyroaxis can be connected multiplex circuit to working connection through revolving body.

The beneficial effects of the utility model are:

The utility model can connect the fluid pressure line and the circuit of standing part and rotating part in whole hydraulic system and the circuit, make rotating part can rotate 360 ° relatively with standing part, pipeline and circuit do not interfere, upper and lower oil circuit and circuit clear, and each oil circuit and circuit operation are not connected.And this central swivel coupling can provide the oil circuit and the multiplex circuit of eight passages, not only can provide oil circuit for running motor and soil-shifting oil cylinder, can also provide circuit on this basis, makes the excavator can be in complex operating environment construction more.

This product is mainly used in upper and lower two major parts of the all-hydraulic loop wheel machine of 900T level.

(4) description of drawings

Fig. 1 is the Facad structure schematic diagram of the central swivel coupling of the novel charged brush hydraulic pressure of the utility model.

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

Fig. 3 is the A-A cut-away view of Fig. 2.

Fig. 4 is the upward view of Fig. 1.

Reference numeral among the figure:

Brush alignment pin 1, block 2, baffle plate 3, revolving body 4, gyroaxis 5, plug 6, location-plate 7, dust ring 8, O shape circle 9, wear ring 10, rotatory sealing 11, O shape circle 12, screw 13, bolt 14, electricity rinse 15, bolt 16.

(5) specific embodiment

Referring to Fig. 1～4, the central swivel coupling of the novel charged brush hydraulic pressure that the utility model relates to, comprise revolving body 4 and gyroaxis 5, described gyroaxis 5 little head ends axially insert in the revolving body 4 from revolving body 4 rear ends, and gyroaxis 5 microcephalies hold axle head fixing with baffle plate 3, O shape circle 12 and screw 13, revolving body 4 front ends are fixing with block 2 and bolt 14, and described gyroaxis 5 stub ends stretch out outside revolving body 4 rear ends, and gyroaxis 5 stub ends are fixedly connected with location-plate 7 near revolving body 4 rear end outer rims; At gyroaxis 5 little head ends brush 15 is housed, and with the axle and the gyroaxis 5 of brush alignment pin 1 fixed brush 15, makes the brush 15 can be with gyroaxis 5 rotations.Brush 15 places in the described block 2, and the shell of brush 15 is fixedlyed connected with block 2 usefulness bolts 16, and it can be rotated with block 2.Load onto rotatory sealing 11, wear ring 10, O shape circle 9 and dust ring 8 in the described revolving body 4 outer rim annular grooves.

As Fig. 3, axially offer eight working connection holes and circuit hole, a center in the described gyroaxis 5, circuit hole, described center is arranged in gyroaxis 5 centers, article eight, the working connection hole is arranged in the periphery in circuit hole, center, the oil-in in described eight working connection holes all is arranged on the outer rim of gyroaxis 5 stub ends, the working connection nose end head that gyroaxis 5 stub ends are offered is blocked with plug 6, and guarantees sealing with O shape circle; Corresponding to eight working connection holes on the gyroaxis 5 and circuit hole, a center, described revolving body 4 and block radially have respectively on 2 eight main hydraulic fluid ports and 12 road circuit (also can be 10 tunnel, 14 tunnel etc. multichannel) with gyroaxis 5 on eight working connection holes and circuit hole, a center corresponding one by one, as the A mouth among Fig. 3, B mouth, C mouth, D mouth, E mouth, F mouth, G mouth, H mouth and I mouth.

Claims (1)

1. novel charged brush hydraulic pressure central authorities swivel coupling, comprise revolving body (4) and gyroaxis (5), it is characterized in that: the little head end of described gyroaxis (5) axially inserts in the revolving body (4) from revolving body (4) rear end, and gyroaxis (5) microcephaly holds axle head fixing with baffle plate (3), revolving body (4) rear end is fixing with block (2), described gyroaxis (5) stub end stretches out outside revolving body (4) rear end, and gyroaxis (5) stub end is fixedly connected with location-plate (7) near revolving body (4) rear end outer rim; Be fixed with brush (15) at the little head end of gyroaxis (5); Axially offer eight working connection holes and circuit hole, a center in the described gyroaxis (5), circuit hole, described center is arranged in gyroaxis (5) center, article eight, the working connection hole is arranged in the periphery in circuit hole, center, and the oil-in in described eight working connection holes all is arranged on the outer rim of gyroaxis (5) stub end; Corresponding to eight working connection holes on the gyroaxis (5) and circuit hole, a center, described revolving body (4) and block radially have respectively on (2) eight main hydraulic fluid ports and multiplex circuit with gyroaxis (5) on eight working connection holes and circuit hole, a center corresponding one by one.

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