CN208651895U - A kind of hydraumatic swivel joint - Google Patents

Abstract

The utility model discloses a kind of hydraumatic swivel joints, its structure includes shell, rotating shaft, rotatory sealing pad, refractory seals set, ball bearing, male thread, hex nut, the shell generally cylindrical-shaped structure, rotating shaft is equipped in the shell, a kind of hydraumatic swivel joint of the utility model, equipped with refractory seals set, polypropylene layer is bonded with rotating shaft when installation, rotating shaft is arranged into, cooperate rotatory sealing pad, to form complete sealing state, characteristic through polypropylene layer plays the role of heat-resistant anticorrosive simultaneously, can effectively entire sealing shroud heat-resistant anticorrosive quality, reinforce sealing effect, effectively eliminate the brought clearance conditions of thermal deformation, oil liquid inside guaranteeing is not easy to leak out from gap location, to utmostly extend the service life of hydraumatic swivel joint, and the property of swivel joint can also be ensured Energy.

Description

A kind of hydraumatic swivel joint

Technical field

The utility model is a kind of hydraumatic swivel joint, belongs to engineering machinery technical equipment field.

Background technique

Circuit rotary joint can select mode of connection according to operative scenario, and swivel joint can be divided into according to purposes: single loop Swivel joint, double loop rotary joint.

Prior art discloses application No. is a kind of Multichannel hydraulic rotary connectors of CN201120403697.9, including Revolving body (1) and rotating shaft (2), it is characterised in that: the lower end of the rotating shaft (2) is inserted into from the top axial of revolving body (1) In revolving body (1), the annular groove between the revolving body (1) and rotating shaft (2) is provided with high temperature resistant circle (7) and rotatory sealing It encloses (8), which is made of dust blowing ring (8.1) and O-ring III (8.2), and O-ring III (8.2) is fixed on dust blowing ring (8.1) on, dust blowing ring (8.1) is pressed on rotating shaft (2), and this permanent pressure maintaining of Multichannel hydraulic rotary connector prevents from turning round Connector is damaged when working by unilateral oil pressure, and can connect the hydraulic tube of fixed part and rotating part in entire hydraulic system Road, and 360 ° of the revolving body of swivel joint and rotating shaft energy relative rotation, Operation and maintenance are inconvenient so that the pipeline service life compared with It is long.But disadvantage is that script sealing shroud be easy lead to thermal deformation because of long-play, cause sealing effect to become There is oil leakage phenomenon in difference, and affects the performance of swivel joint.

Utility model content

In view of the deficienciess of the prior art, the utility model aim is to provide a kind of hydraumatic swivel joint, on solving The sealing shroud for stating equipment script is easy to lead to thermal deformation because of long-play, causes sealing effect to be deteriorated, oil leakage phenomenon occurs, And the problem of affecting the property of swivel joint.

To achieve the goals above, the utility model is achieved through the following technical solutions: a kind of hydraulic gyration connects Head, structure include shell, rotating shaft, rotatory sealing pad, refractory seals set, ball bearing, male thread, hex nut, institute Shell generally cylindrical-shaped structure is stated, is equipped with rotating shaft in the shell, the rotating shaft rear surface is surrounded by rotatory sealing Pad, the revolution outer shaft sleeve are equipped with refractory seals set, the rotating shaft and ball bearing using gap through connection, the rolling The fixation of pearl bearing is located on shell Inner Front End, and the rotating shaft front end is fixed with hex nut, the hex nut front-end table Face is equipped with male thread, and the male thread generally surface is strong and the integrated cylinder-like structure of shape of threads is distributed with；It is described Refractory seals set is made of abrasionproof outer layer, adhering layer, enhancement layer, polyethylene layer, machine silicon layer, polypropylene layer, outside the abrasionproof Surrounded surface is equipped with adhering layer in layer, and the adhering layer and the bonding of enhancement layer outer surface surrounding gapless connect, the reinforcement Layer is bonded with polyethylene layer using gapless, and with being between adhering layer and machine silicon layer, the polyethylene layer is located at machine silicon layer In the surrounding of outer surface, the machine silicon layer inside circumference is equipped with polypropylene layer, and the polypropylene layer is bonded with rotating shaft surface.

Further, the enclosure interior is equipped with rotating shaft, rotatory sealing pad, refractory seals set, ball bearing.

Further, the rotating shaft is connected separately with rotatory sealing pad, refractory seals set, ball bearing, hexagonal spiral shell It is female.

Further, at the male thread and rotating shaft in the same horizontal line.

Further, adhering layer, enhancement layer, polyethylene layer, machine silicon layer are equipped between the abrasionproof outer layer and polypropylene layer.

Further, machine silicon layer two sides is bonded with polyethylene layer and polypropylene layer gapless respectively.

Further, the ball bearing is one kind of rolling bearing, and spherical alloy steel ball is mounted on interior steel ring and outer The transmission efficiency of machine power to reduce the frictional force in power transmission process and is improved with roll mode in the centre of steel ring.

Further, the male thread is a kind of main portions threadedly connected.

Beneficial effect

A kind of hydraumatic swivel joint of the utility model is equipped with refractory seals set, by polypropylene layer and rotating shaft when installation Fitting, rotating shaft is arranged into, cooperates rotatory sealing pad, to form complete sealing state, while through polypropylene layer Characteristic plays the role of heat-resistant anticorrosive, can effectively entire sealing shroud heat-resistant anticorrosive quality, reinforce sealing effect, effectively disappear Except the brought clearance conditions of thermal deformation, guarantee that internal oil liquid is not easy to leak out from gap location, to utmostly extend hydraulic time The service life of adapter, and can also ensure the performance of swivel joint.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is a kind of structural schematic diagram of hydraumatic swivel joint of the utility model；

Fig. 2 is that the refractory seals of the utility model cover diagrammatic cross-section；

In figure: shell -1, rotating shaft -2, rotatory sealing pad -3, refractory seals set -4, abrasionproof outer layer -401, adhering layer - 402, enhancement layer -403, polyethylene layer -404, machine silicon layer -405, polypropylene layer -406, ball bearing -5, male thread -6, hexagonal Nut -7.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

Please refer to Fig. 1-Fig. 2, the utility model provides a kind of technical solution: a kind of hydraumatic swivel joint, structure include Shell 1, rotating shaft 2, rotatory sealing pad 3, refractory seals cover 4, ball bearing 5, male thread 6, hex nut 7, the shell 1 Generally cylindrical-shaped structure, the shell 1 is interior to be equipped with rotating shaft 2, and 2 rear surface of rotating shaft is surrounded by rotatory sealing pad 3, Refractory seals set 4 is arranged with outside the rotating shaft 2, the rotating shaft 2 runs through connection using gap with ball bearing 5, described The fixation of ball bearing 5 is located on 1 Inner Front End of shell, and 2 front end of rotating shaft is fixed with hex nut 7, the hex nut 7 Front-end surface is equipped with male thread 6, and the male thread 6 generally surface is strong and the cylindric knot of the integration of shape of threads is distributed with Structure；Refractory seals set 4 by abrasionproof outer layer 401, adhering layer 402, enhancement layer 403, polyethylene layer 404, machine silicon layer 405, Polypropylene layer 406 forms, and surrounded surface is equipped with adhering layer 402, the adhering layer 402 and reinforcement in the abrasionproof outer layer 401 Layer 403 outer surface surrounding gaplesss bonding connection, the enhancement layer 403 is bonded with polyethylene layer 404 using gapless, and is existed together Between adhering layer 402 and machine silicon layer 405, the polyethylene layer 404 is located in 405 outer surface surrounding of machine silicon layer, the machine silicon 405 inside circumference of layer are equipped with polypropylene layer 406, and the polypropylene layer 406 is bonded with 2 surface of rotating shaft, inside the shell 1 4, ball bearing 5 are covered equipped with rotating shaft 2, rotatory sealing pad 3, refractory seals, the rotating shaft 2 is connected separately with rotatory sealing Pad 3, refractory seals cover 4, ball bearing 5, hex nut 7, the male thread 6 at rotating shaft 2 in the same horizontal line, institute It states and is equipped with adhering layer 402, enhancement layer 403, polyethylene layer 404, machine silicon layer 405 between abrasionproof outer layer 401 and polypropylene layer 406, 405 two sides of machine silicon layer is bonded with polyethylene layer 404 and 406 gapless of polypropylene layer respectively.

Polyethylene layer 404 described in this patent is a kind of aggregated thermoplastic resin obtained of ethylene, is resistant to most of acid The erosion of alkali, the polypropylene layer 406 are a kind of thermoplastic resins as prepared by propylene polymerization, are had heat-resisting, corrosion-resistant.

It is carrying out in use, transmission medium entrance can enter according to working condition in rear end first, then by 2 front end of rotating shaft Male thread 6 connected together with connecting component, and rotatory sealing pad 3 be special material made by, when rotated through rotating Gasket 3 come play the role of it is corrosion-resistant, do not leak, while because rotating shaft 2 is rotated in ball bearing 5, smooth running is held Long, firm flexibly coefficient of friction is small, therefore the effect that can run at high speed, while the situation of the internal rotating gasket 3 of inside can be by Product appearance range estimation is learnt, machine down time or mechanical failure can be prevented, to reach preventive effect and reduce loss, and because of rotation Turn gasket 3 to be easy to lead to thermal deformation because of long time running, is additionally arranged a refractory seals set 4 to improve, it is pacifying Polypropylene layer 406 is bonded with rotating shaft 2 when dress, rotating shaft 2 is arranged into, cooperates rotatory sealing pad 3, it is complete to be formed Sealing state, while the characteristic through polypropylene layer 406 plays the role of heat-resistant anticorrosive, can effectively entire sealing shroud it is resistance to Hot anticorrosive quality reinforces sealing effect, effectively eliminates the brought clearance conditions of thermal deformation, guarantees that internal oil liquid is not easy from gap Place leaks out, to utmostly extend the service life of hydraumatic swivel joint, and can also ensure the performance of swivel joint.

The utility model solve the problems, such as be script sealing shroud be easy lead to thermal deformation because of long-play, cause close It seals effect to be deteriorated, oil leakage phenomenon occurs, and affect the performance of swivel joint, the utility model pass through above-mentioned component mutual group Close, can effectively entire sealing shroud heat-resistant anticorrosive quality, reinforce sealing effect, effectively eliminate the brought gap-like of thermal deformation Condition guarantees that internal oil liquid is not easy to leak out from gap location, thus utmostly extend the service life of hydraumatic swivel joint, and The performance of swivel joint can also be ensured.It is described in detail below:

Surrounded surface is equipped with adhering layer 402, the adhering layer 402 and 403 appearance of enhancement layer in the abrasionproof outer layer 401 The bonding connection of face surrounding gapless, the enhancement layer 403 is bonded with the use of polyethylene layer 404 gapless, and is in adhering layer together Between 402 and machine silicon layer 405, the polyethylene layer 404 is located in 405 outer surface surrounding of machine silicon layer, inside the machine silicon layer 405 Surrounding is equipped with polypropylene layer 406, and the polypropylene layer 406 is bonded with 2 surface of rotating shaft.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein.It should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of hydraumatic swivel joint, structure includes shell (1), rotating shaft (2), rotatory sealing pad (3), refractory seals set (4), ball bearing (5), male thread (6), hex nut (7), the shell (1) generally cylindrical-shaped structure, it is characterised in that:

Rotating shaft (2) are equipped in the shell (1), rotating shaft (2) rear surface is surrounded by rotatory sealing pad (3), described It being arranged with refractory seals set (4) outside rotating shaft (2), the rotating shaft (2) and ball bearing (5) use gap to run through connection, Ball bearing (5) fixation is located on shell (1) Inner Front End, and rotating shaft (2) front end is fixed with hex nut (7), Hex nut (7) front-end surface is equipped with male thread (6), and generally surface is strong and spiral shell is distributed with for the male thread (6) The integrated cylinder-like structure of line shape；

The refractory seals set (4) by abrasionproof outer layer (401), adhering layer (402), enhancement layer (403), polyethylene layer (404), Machine silicon layer (405), polypropylene layer (406) composition, the interior surrounded surface of the abrasionproof outer layer (401) are equipped with adhering layer (402), institute It states adhering layer (402) and the bonding of enhancement layer (403) outer surface surrounding gapless connects, the enhancement layer (403) and polyethylene layer (404) it is bonded using gapless, and with being between adhering layer (402) and machine silicon layer (405), the polyethylene layer (404) is set In the surrounding of machine silicon layer (405) outer surface, machine silicon layer (405) inside circumference is equipped with polypropylene layer (406), and described poly- third Dilute layer (406) is bonded with rotating shaft (2) surface.

2. a kind of hydraumatic swivel joint according to claim 1, it is characterised in that: be equipped with revolution inside the shell (1) Axis (2), rotatory sealing pad (3), refractory seals set (4), ball bearing (5).

3. a kind of hydraumatic swivel joint according to claim 1, it is characterised in that: the rotating shaft (2) is connected separately with Rotatory sealing pad (3), refractory seals set (4), ball bearing (5), hex nut (7).

4. a kind of hydraumatic swivel joint according to claim 1, it is characterised in that: the male thread (6) and rotating shaft (2) Place is in the same horizontal line.

5. a kind of hydraumatic swivel joint according to claim 1, it is characterised in that: the abrasionproof outer layer (401) and poly- third Adhering layer (402), enhancement layer (403), polyethylene layer (404), machine silicon layer (405) are equipped between dilute layer (406).

6. a kind of hydraumatic swivel joint according to claim 1, it is characterised in that: machine silicon layer (405) the two sides difference It is bonded with polyethylene layer (404) and polypropylene layer (406) gapless.