CN210163008U

CN210163008U - Waterproof device of lifting appliance

Info

Publication number: CN210163008U
Application number: CN201920800800.XU
Authority: CN
Inventors: 韩红安; 韩俊锋; 吴魁伟; 于海洋; 刘征斌; 侯永强; 付建征; 郝倩茹; 张家宽; 杨欣
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-03-20
Anticipated expiration: 2029-05-30

Abstract

The utility model provides a watertight fittings of hoist, the hoist includes the lifting hook crossbeam, and the upper end of lifting hook crossbeam is passed through axial bearing and is connected with the lifting hook nut, and the lower extreme passes through radial bearing and is connected with the lifting hook, watertight fittings is including being used for the sealed cowling of axial bearing, still including being used for the sealed seal ring lid of radial bearing. The sealing cover is correspondingly arranged outside the lifting hook nut and is connected with the lifting hook cross beam in a sealing mode through a sealing piece arranged on the flange face of the sealing cover. The sealing ring cover is correspondingly arranged on the rotating shaft of the lifting hook and at the lower end of the lifting hook cross beam and is respectively connected with the lifting hook cross beam and the lifting hook in a sealing manner through sealing parts. The utility model discloses a set up sealed cowling, sealing ring lid on the hoist, make axial bearing and journal bearing on the lifting hook rotation position obtain the sealed protection of water proof, can ensure the hoist can be long-term operation under water.

Description

Waterproof device of lifting appliance

Technical Field

The utility model belongs to the technical field of the jack-up technique and specifically relates to a watertight fittings of hoist is related to.

Background

Conventional spreaders, such as those of cranes, are usually used above ground level, and during operation, the bearings on the spreader not only bear the weight of the spreader, but also allow the hook to rotate. In order to prevent rainwater from corroding the bearing on the lifting appliance, lubricating grease is only required to be regularly coated on the bearing, so that the bearing can be ensured not to be rusted and can be used for a long time. However, a hanger which works underwater for a long time, especially a hanger which works in corrosive liquid (such as seawater), cannot be used due to the rapid corrosion of the bearing.

At present, the underwater hoisting operation is more and more needed, so that a waterproof lifting appliance which can be used underwater for a long time is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency in the background art, the utility model discloses a watertight fittings of hoist.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a watertight fittings of hoist, the hoist includes the lifting hook crossbeam, and the upper end of lifting hook crossbeam is passed through axial bearing and is connected with the lifting hook nut, and the lower extreme passes through radial bearing and is connected with the lifting hook, watertight fittings is including being used for the sealed cowling of axial bearing, still including being used for the sealed seal ring lid of radial bearing.

The sealing cover is correspondingly arranged outside the lifting hook nut and is connected with the lifting hook cross beam in a sealing mode through a sealing piece arranged on the flange face of the sealing cover.

The sealing ring cover is correspondingly arranged on the rotating shaft of the lifting hook and at the lower end of the lifting hook cross beam and is respectively connected with the lifting hook cross beam and the lifting hook in a sealing manner through sealing parts.

Preferably, the sealing cover is a cover-shaped sheet metal welding part, and the sealing part arranged on the flange surface of the sealing cover is a sealing ring; and a sealing groove corresponding to the sealing ring and a connecting hole for being in sealing connection with the lifting hook cross beam are arranged on the flange surface of the sealing cover.

Preferably, a rotary sealing ring used for sealing with the hook rotating shaft and an annular sealing ring used for sealing with the hook cross beam are arranged on the sealing ring cover; the sealing ring cover is provided with an annular sealing groove corresponding to the annular sealing ring and a connecting hole used for being connected with the lifting hook beam in a sealing mode.

Owing to adopt above-mentioned technical scheme, compare the background art, the utility model discloses following beneficial effect has:

the utility model discloses a watertight fittings of hoist through set up sealed cowling, sealing ring lid on the hoist, makes axial bearing and journal bearing on the rotatory position of lifting hook obtain the sealed protection of water proof, can ensure the hoist can be long-term operation under water.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a sealing structure of the axial bearing.

Fig. 3 is a schematic view of a seal structure of the radial bearing.

In the figure: 1. a sealing cover; 1.1, sealing rings; 2. a sealing ring cover; 2.1, rotating a sealing ring; 2.2, an annular sealing ring; 3. a spreader; 3.1, a hook nut; 3.2, a hook beam; 3.3, a lifting hook; 4. an axial bearing; 5. a radial bearing.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The utility model provides a watertight fittings of hoist for underwater operation, as shown in figure 1, hoist 3 includes lifting hook crossbeam 3.2, and lifting hook crossbeam 3.2's upper end is passed through axial bearing 4 and is connected with lifting hook nut 3.1, and the lower extreme passes through radial bearing 5 and is connected with lifting hook 3.3, lifting hook nut 3.1 and lifting hook 3.3's upper end spiro union. The axial bearing 4 mainly bears the weight of the crane, the radial bearing 5 mainly prevents the lifting hook 3.3 from swinging, and the lifting hook 3.3 can freely rotate under the support of the axial bearing 4 and the radial bearing 5.

As shown in fig. 2 and 3, the waterproof device comprises a sealing cover 1 for sealing an axial bearing 4 and a sealing ring cover 2 for sealing a radial bearing 5. It can be seen that the sealed part of the seal cover 1 and the seal ring cover 2 is the rotating part of the rotating shaft of the hook 3.3 in the hook beam 3.2, the seal cover 1 is at the upper end of the hook beam 3.2, the seal ring cover 2 is at the lower end of the hook beam 3.2, a rotatable seal cavity is formed, and the axial bearing 4 and the radial bearing 5 are located in the seal cavity.

The sealing cover 1 is a cover-shaped sheet metal welding part, and the sealing piece arranged on the flange surface of the sealing cover is a sealing ring 1.1. The flange surface of the sealing cover 1 is provided with a sealing groove corresponding to the sealing ring 1.1 and a connecting hole for sealing connection with the lifting hook beam 3.2. The sealing cover 1 is correspondingly arranged outside the lifting hook nut 3.1 and is in sealing connection with the lifting hook cross beam 3.2 through the sealing ring 1.1 and the connecting hole which are arranged on the flange surface of the sealing cover.

And a rotary sealing ring 2.1 used for sealing with a rotating shaft of the lifting hook 3.3 and an annular sealing ring 2.2 used for sealing with a lifting hook cross beam 3.2 are arranged on the sealing ring cover 2. An annular sealing groove corresponding to the annular sealing ring 2.2 and a connecting hole for being in sealing connection with the lifting hook cross beam 3.2 are further arranged on the sealing ring cover 2. The sealing ring cover 2 is correspondingly arranged on the rotating shaft of the lifting hook 3.3 and at the lower end of the lifting hook cross beam 3.2, and the annular sealing ring 2.2 and the rotary sealing ring 2.1 are respectively connected with the rotating shaft of the lifting hook cross beam 3.2 and the rotating shaft of the lifting hook 3.3 in a sealing manner through connecting bolts.

By arranging the sealing cover 1 and the sealing ring cover 2 on the lifting appliance 3, the axial bearing 4 and the radial bearing 5 on the rotating part of the lifting hook 3.3 are protected in a waterproof sealing manner, and the lifting appliance 3 can be ensured to operate underwater for a long time.

The part of the utility model not detailed is prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a watertight fittings of hoist, hoist (3) are connected characterized by including lifting hook crossbeam (3.2), axial bearing (4) and lifting hook nut (3.1) are passed through to the upper end of lifting hook crossbeam (3.2), and the lower extreme passes through radial bearing (5) and is connected with lifting hook (3.3): the waterproof device comprises a sealing cover (1) for sealing the axial bearing (4) and a sealing ring cover (2) for sealing the radial bearing (5);

the sealing cover (1) is correspondingly arranged outside the lifting hook nut (3.1) and is in sealing connection with the lifting hook cross beam (3.2) through a sealing piece arranged on the flange surface of the sealing cover;

the sealing ring cover (2) is correspondingly arranged on the rotating shaft of the lifting hook (3.3) and at the lower end of the lifting hook cross beam (3.2) and is respectively connected with the lifting hook cross beam (3.2) and the lifting hook (3.3) in a sealing way through sealing pieces.

2. The waterproof device for the lifting appliance according to claim 1, wherein: the sealing cover (1) is a cover-shaped sheet metal welding part, and the sealing part arranged on the flange surface of the sealing cover is a sealing ring (1.1); and a sealing groove corresponding to the sealing ring (1.1) and a connecting hole for being in sealing connection with the lifting hook cross beam (3.2) are arranged on the flange surface of the sealing cover (1).

3. The waterproof device for the lifting appliance according to claim 1, wherein: a rotary sealing ring (2.1) for sealing with a rotating shaft of a lifting hook (3.3) and an annular sealing ring (2.2) for sealing with a lifting hook cross beam (3.2) are arranged on the sealing ring cover (2); the sealing ring cover (2) is provided with an annular sealing groove corresponding to the annular sealing ring (2.2) and a connecting hole for being connected with the lifting hook beam (3.2) in a sealing manner.