CN211693284U

CN211693284U - Light hydraulic coupling

Info

Publication number: CN211693284U
Application number: CN201922361361.XU
Authority: CN
Inventors: 吴亚东
Original assignee: Wuxi Honghailong Marine Machinery Co ltd
Current assignee: Wuxi Honghailong Marine Machinery Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-16
Anticipated expiration: 2029-12-25

Abstract

The utility model provides a light-duty hydraulic coupling, it can solve current conventional hydraulic coupling weight great, the security is low and install inconvenient problem. The corrugated pipe comprises an outer sleeve and an inner sleeve, wherein the outer sleeve is a rigid corrugated sleeve, and outer sleeve flanges are coaxially and fixedly connected to two ends of the rigid corrugated sleeve respectively; the two inner sleeves are elastic sleeves and are provided with two conical surfaces, the two inner sleeves are respectively inserted into the shaft holes of the two outer sleeve flanges, and the outer diameters of the inner sleeves are gradually increased from inside to outside along the outer sleeves; one end of the inner sleeve, which is far away from the outer sleeve, is provided with an inner sleeve flange, and the inner sleeve flange is fixedly connected with the adjacent outer sleeve flange through a tensioning bolt.

Description

Light hydraulic coupling

Technical Field

The utility model relates to a hydraulic coupling field specifically is a light-duty hydraulic coupling.

Background

The coupling is a part for connecting the two shafts or the connecting shaft and the rotating part and rotates together with the shafts without disengaging in the process of transmitting motion and power. Among the couplings, there is a hydraulic coupling, such as a novel hydraulic coupling disclosed in utility model patent No. ZL 201020248832.2, which includes a thick-walled outer sleeve and a thin-walled inner sleeve coaxially inserted and fitted together, wherein the inner peripheral surface of the outer sleeve and the outer peripheral surface of the inner sleeve are correspondingly fitted with a certain taper. The inner circumferential surface of the outer sleeve is provided with oil grooves which are not communicated with the two ends of the outer sleeve, the side wall of the outer sleeve is provided with an oil port which is communicated with the oil grooves, and the oil port is plugged through a countersunk head plug screw. When the hydraulic coupling is installed, the outer sleeve slides towards one side with a large diameter of the inner sleeve along the inner sleeve joint conical surface by means of radial and axial oil pressure to force the inner sleeve to contract and the outer sleeve to expand, when the movement displacement of the outer sleeve reaches the designed amount, the countersunk head screw plug is unscrewed to release high-pressure oil, at the moment, the inner sleeve is in interference fit with the outer sleeve, positive pressure exists between interference fit surfaces, and torque is transmitted by means of friction force generated by the positive pressure during working.

The conventional hydraulic coupling has the disadvantages that the outer sleeve is large in wall thickness, so that the weight of the hydraulic coupling is large, when a shaft rotates at a high speed, the rotational inertia of the hydraulic coupling is large, and along with vibration, unsafe factors are often brought, and meanwhile, the hydraulic coupling is inconvenient to install.

Disclosure of Invention

Great to current conventional hydraulic coupling weight, the security is low and install inconvenient technical problem, the utility model provides a light-duty hydraulic coupling, it can light in weight, and the security is high, simple to operate.

The technical scheme is as follows: the utility model provides a light-duty hydraulic coupling, its includes overcoat and endotheca, its characterized in that: the outer sleeve is a rigid corrugated sleeve, and outer sleeve flanges are coaxially and fixedly connected to two ends of the rigid corrugated sleeve respectively; the two inner sleeves are elastic sleeves, the outer peripheral surfaces of the two inner sleeves are conical surfaces, the two inner sleeves are respectively inserted into the shaft holes of the two outer sleeve flanges, and the outer diameters of the inner sleeves are gradually increased outwards along the inner sides of the outer sleeves; and one end of the inner sleeve, which is far away from the outer sleeve, is provided with an inner sleeve flange, and the inner sleeve flange is fixedly connected with the adjacent outer sleeve flange through a tensioning bolt.

It is further characterized in that:

and the outer sleeve flange is fixedly connected with the inner side of the inner sleeve flange, and a plurality of jacking bolts are arranged at intervals along the circumferential direction of the outer sleeve flange.

The quantity of the jacking bolts is at least three and is arranged at intervals along the circumferential direction of the outer sleeve flange.

The outer sleeve and the outer sleeve flange are welded into a whole.

The outer sleeve flange is close to one side of the outer sleeve is provided with an annular welding groove, the end part of the outer sleeve is inserted into the annular welding groove and welded with the outer sleeve flange, and a hardened gasket used for plugging the annular welding groove is further installed in the annular welding groove.

The utility model has the advantages that:

the outer sleeve of the hydraulic coupler of the utility model adopts the form of the rigid corrugated sleeve, compared with the traditional thick-wall outer sleeve, the weight of the hydraulic coupler can be greatly reduced, the rotational inertia of the coupler caused by larger weight is reduced, meanwhile, the outer sleeve adopts a rigid corrugated design, has certain flexibility, can effectively avoid the transmission of vibration, improves the use safety of the hydraulic coupler, the inner sleeve adopts an elastic sleeve design, the outer peripheral surface is a conical surface and is inserted into the shaft hole of the outer sleeve flange, during installation, only the driving shaft and the driven shaft are respectively inserted into the inner holes of the two inner sleeves, then tighten tie bolt, along with the continuous tightening of tie bolt, the endotheca inserts the shaft hole of overcoat flange gradually and then takes place to warp and hug closely driving shaft and driven shaft, accomplishes the installation, and the power of hugging closely of shaft coupling counter shaft is big, has increaseed the biography of shaft coupling and has turned round the ability, simple to operate saves time moreover.

Drawings

Fig. 1 is a main sectional view of the present invention.

Reference numerals: 1-coating; 2-inner sleeve; 21-axle hole of the inner sleeve; 3-sheathing a flange; 4-inner sleeve flange; 5-tightening the bolt; 6-pushing bolt; 7-hardening the gasket.

Detailed Description

Referring to fig. 1, the light hydraulic coupling of the present invention comprises an outer sleeve 1 and an inner sleeve 2, wherein the outer sleeve 1 is a rigid corrugated sleeve, and outer sleeve flanges 3 are coaxially and fixedly connected to two ends of the rigid corrugated sleeve respectively; the inner sleeves 2 are elastic sleeves and are provided with two, the peripheral surfaces of the inner sleeves 2 are conical surfaces, the two inner sleeves 2 are respectively inserted into the shaft holes of the two outer sleeve flanges 3, and the outer diameters of the inner sleeves 2 are gradually increased from inside to outside along the outer sleeve 1; an inner sleeve flange 4 is integrally formed at one end of the inner sleeve 2 far away from the outer sleeve 1, and the inner sleeve flange 4 is fixedly connected with the adjacent outer sleeve flange 3 through a tensioning bolt 5; a plurality of jacking bolts 6 are fixedly connected to the outer sleeve flange 3 at the inner side of the inner sleeve flange 4, in the embodiment, the number of the jacking bolts 6 is at least three, the jacking bolts 6 are uniformly arranged along the circumferential direction of the outer sleeve flange 3 at intervals, through the arrangement of the jacking bolts 6, when the inner sleeve 2 needs to be disassembled, the tensioning bolts 5 are disassembled, and then the jacking bolts 6 are unscrewed outwards, so that the inner sleeve 2 can be jacked out of the shaft hole of the outer sleeve flange 3 by the jacking bolts 6, and the disassembly is more convenient and labor-saving; preferably, overcoat 1 and 3 welding of overcoat flange are as an organic whole, and is concrete, and the annular welding groove has been opened to one side of overcoat flange 3 that is close to overcoat 1, and the tip of overcoat 1 inserts annular welding groove and welds with overcoat flange 3, still installs the stiffened gasket 7 that is used for shutoff annular welding groove in the annular welding groove, so design, overcoat and overcoat flange rigid coupling are reliable and stable, and the stiffened gasket's setting can protect the welding groove not destroyed.

The following detailed description discloses the utility model discloses hydraulic coupling's installation: the two inner sleeves 2 are respectively inserted into the two outer sleeve flanges 3, then the driving shaft and the driven shaft are respectively inserted into the shaft holes 21 of the two inner sleeves, the driving shaft and the driven shaft are respectively in clearance fit with the shaft holes 21 of the inner sleeves at the moment, then the tensioning bolt 5 is screwed, the inner sleeves 2 are gradually inserted into the shaft holes of the outer sleeve flanges 3, under the action of the conical surface, the inner sleeves 2 deform to tightly hold the driving shaft and the driven shaft, and are in interference fit with the driving shaft and the driven shaft, and the installation is completed.

Claims

1. The utility model provides a light-duty hydraulic coupling, its includes overcoat and endotheca, its characterized in that: the outer sleeve is a rigid corrugated sleeve, and outer sleeve flanges are coaxially and fixedly connected to two ends of the rigid corrugated sleeve respectively; the two inner sleeves are elastic sleeves, the outer peripheral surfaces of the two inner sleeves are conical surfaces, the two inner sleeves are respectively inserted into the shaft holes of the two outer sleeve flanges, and the outer diameters of the inner sleeves are gradually increased outwards along the inner sides of the outer sleeves; and one end of the inner sleeve, which is far away from the outer sleeve, is provided with an inner sleeve flange, and the inner sleeve flange is fixedly connected with the adjacent outer sleeve flange through a tensioning bolt.

2. A light-duty hydraulic coupling as set forth in claim 1 wherein: and the outer sleeve flange is fixedly connected with the inner side of the inner sleeve flange, and a plurality of jacking bolts are arranged at intervals along the circumferential direction of the outer sleeve flange.

3. A light-duty hydraulic coupling as set forth in claim 2 wherein: the quantity of the jacking bolts is at least three and is arranged at intervals along the circumferential direction of the outer sleeve flange.

4. A light-duty hydraulic coupling as set forth in claim 1 wherein: the outer sleeve and the outer sleeve flange are welded into a whole.

5. A light-duty hydraulic coupling according to claim 4, wherein: the outer sleeve flange is close to one side of the outer sleeve is provided with an annular welding groove, the end part of the outer sleeve is inserted into the annular welding groove and welded with the outer sleeve flange, and a hardened gasket used for plugging the annular welding groove is further installed in the annular welding groove.