CN201794939U

CN201794939U - Hydraulic coupling

Info

Publication number: CN201794939U
Application number: CN2010202824906U
Authority: CN
Inventors: 叶笃孟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-04-13
Anticipated expiration: 2020-08-05

Abstract

The utility model discloses a hydraulic coupling. The hydraulic coupling comprises a half coupling; an inner ring is arranged in the half coupling; a front gland and a rear gland are respectively arranged on the front end face and the rear end face of the half coupling and the inner ring through bolts; a clamping ring is arranged in a hollow cavity formed by the half coupling, the inner ring, the front gland and the rear gland; the clamping ring adopts a taper ring structure and fits with the taper-shaped hollow cavity formed by the half coupling, the inner ring, the front gland and the rear gland; a dismounting oil cavity and a mounting oil cavity are respectively arranged on the end faces of the clamping ring adjacent to the front gland and the rear gland; oil holes communicated to the dismounting oil cavity, the mounting oil cavity and the clamping ring respectively are formed on the half coupling; and an oil hole connected to the clamping ring is also formed on the inner ring. The hydraulic coupling has the following advantages: firstly, the dismounting oil cavity and the clamping ring are added, therefore the mounting and the dismounting are very convenient; secondly, the clamping ring moving leftwards and rightwards during the assembly serves as the piston of an oil cylinder, therefore the displacement of the half coupling is well limited; and thirdly, an O-shaped ring is adopted for end face seal, therefore the possibility of the leakage of oil pressure is greatly reduced.

Description

A kind of hydrocoupling

Technical field

The utility model relates to coupling, and specifically a kind of do not have axial displacement and can fast hydraulic pressure install and hydrocoupling that fast hydraulic pressure is dismantled.

Background technique

Hydrocoupling originates from abroad, is applied to shipbuilding industry the earliest in China, along with to the understanding in depth of hydrocoupling, branches out a variety of novel products in China.But, citation form is roughly the same, general main part is by overlapping in a heavy wall overcoat and a thin-walled, an end cap is formed, the end face of two sleeves docks and joins together by fastening piece (bolt), overcoat has end face of flange, interior condom is in overcoat, in the outer surface of cover and the internal surface of overcoat be a kind of in the same way with the less conical surface of tapering, have an oil inlet hole on the barrel of overcoat and unload oilhole, oil inlet hole is plugged with sealing plug with unloading in the oilhole, end bracket enclosed covers on the other end relative with end face of flange of overcoat, and two sleeves form confined air cavity (being installed into oil pocket) by the end face of flange butt joint of overcoat.Squeeze into high pressure oil by oil inlet hole, make the very high pressure of generation between the matching surface, by overcoat and interior cover, the frictional force transmitting torque between interior cover and the transmission shaft.Coupling simple in structure, safe and reliable, the dismounting of coupling utilizes high pressure oil, and installation and removal, maintenance are more convenient.

These hydrocouplings in actual use, we find that three big shortcomings are arranged:

1. because main part is made up of cover, an end cap in a heavy wall overcoat and the thin-walled, and when coupling was installed, oil inlet hole was squeezed into the oil of high pressure, high pressure oil promotes overcoat and moves axially, by conical surface generation magnitude of interference transmitting torque.Because cone angle is smaller, it is bigger to make overcoat move axially distance, generally will mobile 20-30mm.If when two coupling are linked together the coupling use that forms the whole series with elastic element or non-resilient element again, move axially and want 40-60mm, this is not all right in a lot of occasions.As: under the situation of motor and speed reducer, speed reducer and working shaft fixed-site, it is unallowed moving axially.Therefore, the industry of above-mentioned hydrocoupling use is greatly limited.

2. owing to have only one to be installed into oil pocket, do not dismantle oil suction chamber, during dismounting, squeeze into the oil of high pressure by unloading oilhole, produce axial force dismounting coupling after acting on the resolution of forces on the conical surface, the power of this decomposition is limited, when coupling is very big, dismounting becomes very hard, if re-use a period of time, the heavy coupling of last ton can not be dismantled substantially.

3. the overcoat owing to coupling moves axially apart from bigger, be sealed into slipper seal between overcoat and the end cap, big or use when frequent when high pressure oil pressure, being easy to of the Sealing of slipper seal damaged, can produce leakage phenomenon during well damage, oil pressure is not got on and can't install.

The model utility content

(1) technical problem that will solve

The purpose of this utility model is the defective that exists at prior art, and a kind of hydrocoupling is provided, and has solved the problem that bad installation and removal that prior art exists are keeped in repair.

(2) technological scheme

The technological scheme that its technical problem that solves the utility model adopts is: a kind of hydrocoupling, its structure comprise half-coupling, the inner interior ring that is provided with of half-coupling; Gland before and after the front/rear end of described half-coupling and interior ring is equipped with by bolt respectively is provided with pressure ring in the cavity that described half-coupling, interior ring and front and back gland are formed.

Described pressure ring be the tapered collar structure and and the conical cavity formed of half-coupling, interior ring and front and back gland match, described pressure ring is provided with the dismounting oil pocket respectively, oil pocket is installed near the end face of front and back gland.

Offer the oilhole that is communicated to the dismounting oil pocket, oil pocket and pressure ring are installed on the described half-coupling, also offer oilhole on the described interior ring and be connected to pressure ring.

All adopt the sealing of zero shape circle between described front and back gland and half-coupling and the interior ring.

(3) beneficial effect

A kind of hydrocoupling of the present utility model is compared with prior art, has following beneficial effect:

The utility model has increased dismounting oil pocket and pressure ring, be convenient to very much installing/dismounting, and when mounted owing to be the pressure ring move left and right, the piston that is equivalent to oil cylinder, well limited the displacement of half-coupling, simultaneously owing to adopt the end face seal of zero shape circle, thereby significantly reduced the possibility that oil pressure leaks, can be the user and bring great economic benefit.

Description of drawings

Accompanying drawing is the structural representation of a kind of hydrocoupling of the present utility model.

Among the figure: 1. bolt; 2. interior ring; 3. pressure ring; 4. rear pressing cover; 5. half-coupling; 6. bolt; 7. preceding gland; 8. zero shape is enclosed; 9. zero shape is enclosed; 101.102.103.104. oilhole; 111. installation oil pocket; 112. dismounting oil pocket.

Embodiment

Next explain below with reference to Figure of description a kind of hydrocoupling of the present utility model being done.

A kind of hydrocoupling of the present utility model, its structure comprise half-coupling 5, the inner interior ring 2 that is provided with of half-coupling;

Gland

7,4 before and after the front/rear end of described half-coupling and interior ring is equipped with by

bolt

6,1 respectively is provided with pressure ring 3 in the cavity that described half-coupling, interior ring and front and back gland are formed.

Described pressure ring be the tapered collar structure and and the conical cavity formed of half-coupling, interior ring and front and back gland match, described pressure ring is provided with dismounting oil pocket 112 respectively, oil pocket 111 is installed near the end face of front and back gland.

Offer the oilhole 103,101,102 that is communicated to the dismounting oil pocket, oil pocket and pressure ring are installed on the described half-coupling, also offer oilhole 104 on the described interior ring and be connected to pressure ring.

All adopt 8,9 sealings of zero shape circle between described front and back gland and half-coupling and the interior ring.

High pressure oil enters by oilhole 101 and installs in the oil pocket 111, promotes pressure ring 3 and moves right, and pressure ring 3 compresses half-coupling 5 and interior ring 2 by interior male cone (strobilus masculinus), relies on the frictional force between the conical surface to produce the resiliently deformable compression axis by the friction transmitting torque; All have oil duct on half-coupling 5, pressure ring 3 and the interior ring 2, lubricant oil enters between the male cone (strobilus masculinus) of the inner conical surface of pressure ring 3 and interior ring 2 and between the inner conical surface of pressure ring 3 male cone (strobilus masculinus)s and half-coupling 5 and in the oil duct by oilhole 102, oilhole 104, lubricate; During dismounting, high pressure oil enters in the dismounting oil pocket 112 by oilhole 103, promoting pressure ring 3 is moved to the left, make and form the gap between the conical surface, resiliently deformable is recovered, and can pull down coupling from axle, during dismounting, lubricant oil enters between the male cone (strobilus masculinus) of the inner conical surface of pressure ring 3 and interior ring 2 by oilhole 102, oilhole 104 and between the inner conical surface of pressure ring 3 male cone (strobilus masculinus)s and half-coupling 5 and in the oil duct equally, lubricate.Interior ring 2, pressure ring 3, half-coupling 5 are sleeved on together successively from the inside to the outside, the circular groove before and after zero shape circle, 8, zero shape circle 9 is respectively charged into.

The above embodiment is a kind of of the more preferably concrete mode of execution of the utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.

Claims

1. hydrocoupling, its structure comprise half-coupling, the inner interior ring that is provided with of half-coupling; It is characterized in that: gland before and after the front/rear end of described half-coupling and interior ring is equipped with by bolt respectively is provided with pressure ring in the cavity that described half-coupling, interior ring and front and back gland are formed.

2. a kind of hydrocoupling according to claim 1, it is characterized in that: described pressure ring be the tapered collar structure and and the conical cavity formed of half-coupling, interior ring and front and back gland match, described pressure ring is provided with the dismounting oil pocket respectively, oil pocket is installed near the end face of front and back gland.

3. a kind of hydrocoupling according to claim 1 and 2 is characterized in that: offer the oilhole that is communicated to the dismounting oil pocket, oil pocket and pressure ring are installed on the described half-coupling, also offer oilhole on the described interior ring and be connected to pressure ring.

4. a kind of hydrocoupling according to claim 1 and 2 is characterized in that: all adopt the sealing of zero shape circle between described front and back gland and half-coupling and the interior ring.