CN218193649U - Screw-in device for hydraulic nut - Google Patents

Abstract

The utility model provides a screwing device for a hydraulic nut, which structurally comprises a suspension ring frame, a screw rod and a screw rod, wherein the suspension ring frame is formed into a ring shape and is sleeved on the periphery of the hydraulic nut; and the rolling connecting part is arranged between the lifting ring frame and the hydraulic nut and is used for enabling the lifting ring frame and the hydraulic nut to be in rolling connection. The screwing device for the hydraulic nut can solve the problem that the hydraulic nut is difficult to install on a stern shaft.

Description

Screw-in device for hydraulic nut

Technical Field

The application relates to the technical field of ship shafting installation, in particular to a screwing device for a hydraulic nut.

Background

Before the ship is launched, the shafting needs to be installed in a dry dock or a shipway. In order to meet the design requirements, it is a very critical step to compress the propeller at the tail end of the stern shaft, and the compression of the propeller is completed by installing a hydraulic nut.

Before the hydraulic nut is installed, the stern shaft is installed in place and is in a horizontal state (or slightly has a stern inclination angle), and the hydraulic nut with a larger diameter is heavier, so the hydraulic nut is sleeved on the stern shaft by adopting a steel wire rope, a sling hoop or other auxiliary hoisting methods. During installation, the stern shaft is usually fixed, and the hydraulic nut cannot be flexibly turned and adjusted, so that initial screwing of the hydraulic nut becomes very difficult.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a screwing device for a hydraulic nut, which solves the problem that it is difficult to mount the hydraulic nut on a stern shaft.

According to the utility model provides a screw in device that hydraulic nut used, wherein, the screw in device that hydraulic nut used includes: the lifting ring frame is formed into a ring shape and is used for being sleeved on the periphery of the hydraulic nut; and the rolling connecting part is arranged between the lifting ring frame and the hydraulic nut and is used for enabling the lifting ring frame and the hydraulic nut to be in rolling connection.

Preferably, the inner circumference of the bail frame is formed with a first annular groove, the bail frame including: the lifting ring frame comprises a lifting ring frame body, a lifting ring frame body and a lifting ring, wherein the lifting ring frame body is formed into a ring shape, a protruding part extending into the ring is formed on a first side of the lifting ring frame body in the axial direction, and a second side of the lifting ring frame body in the axial direction is an opening side; and the retainer ring cover plate is formed into an annular shape and is connected with the second side of the hoisting ring frame main body in the axial direction, and the retainer ring cover plate and the protruding part respectively form two sides of the first annular groove.

Preferably, an annular gasket is arranged between the suspension ring frame main body and the retainer ring cover plate.

Preferably, the suspension ring frame main body is fixedly connected with the retainer ring cover plate through bolts.

Preferably, the number of the bolts is multiple, and the bolts are uniformly arranged along the circumferential direction of the suspension ring frame main body.

Preferably, the hydraulic nut is formed at an outer periphery thereof with a second annular groove, and the rolling connection portion includes a ball disposed between the first annular groove and the second annular groove.

Preferably, the number of the balls is multiple, and the balls are distributed on the periphery of the hydraulic nut at intervals.

Preferably, the width of the first annular groove and the width of the second annular groove are both equal to the length of the diameter of the ball, and the first annular groove and the second annular groove are aligned.

Preferably, the sum of the depth of the first annular groove and the depth of the second annular groove is equal to the length of the diameter of the ball.

Preferably, a lifting lug is arranged at the top of the lifting ring frame.

The utility model discloses screw in device that hydraulic nut used, its shackle frame forms to the annular, and can overlap the periphery at hydraulic nut, the roll portion then sets up between shackle frame and hydraulic nut, it is used for roll connection shackle frame and hydraulic nut, under the condition of being hoisted the shackle frame, the cover is established and is also will be along with shackle frame synchronous motion at hydraulic nut wherein, and the roll portion then can make hydraulic nut can be better at the shackle frame carry out circumferential direction, so can solve the problem of installing hydraulic nut difficulty at the stern axle effectively.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of a screwing device for a hydraulic nut according to the invention.

Fig. 2 is a schematic view of a screwing device for a hydraulic nut and the hydraulic nut according to the present invention.

Fig. 3 is a partial enlarged view of a screwing device for a hydraulic nut and the hydraulic nut according to the present invention.

Reference numerals: 1-a suspension loop frame; 11-a suspension ring frame body; 12-a retainer cover plate; 13-a first annular groove; 131-a projection; 2-a ring gasket; 3-a bolt; 4-a ball bearing; 5-a second annular groove; 6-lifting lugs; 61-a through hole; 7-hydraulic nut.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.

Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly over" or "directly overlying" another element, there may be no intervening elements present.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatial relationship terms such as "above 8230 \8230; above", "upper", "above 8230 \8230; below" and "lower" may be used herein to describe the relationship of one element to another element as shown in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the terms "over 8230 \ 8230;" above "include both orientations" over 8230; \8230; "over 8230;" under 8230; "depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of this application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

The utility model provides a screw in device that hydraulic nut used, as shown in fig. 1 to fig. 3, this screw in device that hydraulic nut used includes suspension loop frame 1 and roll portion.

In the following description, a specific structure of the above-described components of the screwing device for a hydraulic nut and a connection relationship of the above-described components will be specifically described with reference to fig. 1 to 3.

As shown in fig. 1 to 3, in an embodiment, the bail frame 1 may be formed in a ring shape for fitting over the outer circumference of the hydraulic nut 7, so that the hoist may indirectly move the hydraulic nut 7 located therein by moving the bail frame 1. The hydraulic nut screwing device further comprises a rolling connecting part which can be arranged between the lifting ring frame 1 and the hydraulic nut 7 and is used for enabling the lifting ring frame 1 and the hydraulic nut 7 to be in rolling connection, and further enabling the hydraulic nut 7 to still well achieve circumferential rotation under the condition that the lifting ring frame 1 is sleeved on the periphery of the hydraulic nut 7 so as to complete screwing action.

Preferably, as shown in fig. 1 to 3, in an embodiment, the bail frame 1 may include a bail frame body 11 and a retainer cover plate 12. The suspension ring frame body 11 may be formed in a ring shape, and is configured to be sleeved on the periphery of the hydraulic nut 7, the inner diameter of the suspension ring frame body 11 may be larger than the outer diameter of the hydraulic nut 7, so that the rolling connection portion is disposed between the suspension ring frame body 11 and the hydraulic nut 7, and the axial dimension of the suspension ring frame body 11 may be smaller than the axial dimension of the hydraulic nut 7.

Further, preferably, in the embodiment, the suspension ring holder 1 may be formed with a first annular groove 13 on an inner circumference thereof. Specifically, as shown in fig. 2 and 3, a first side in the axial direction of the suspension ring holder body 11 may be formed with a protrusion 131 extending into the ring. The protrusion 131 may be formed in a ring shape as a whole and may have a rectangular cross section, and preferably, the protrusion 131 is provided on an inner circumferential surface of the bail body 11, which is integrally formed with the bail body 11. The second side of the suspension ring frame body 11 in the axial direction may be an opening side, that is, the second side of the suspension ring frame body 11 in the axial direction is formed to be an opening relative to the first side of the suspension ring frame body 11 in the axial direction, and the first side of the suspension ring frame body 11 in the axial direction and the second side of the suspension ring frame body 11 in the axial direction are opposite to each other. The retainer ring cover 12 may be an annular cover, and the central axis thereof is collinear with the central axis of the hanger body 11. The retainer cover plate 12 may be disposed on the second side of the hanger body 11 in the axial direction with its plate surface in contact with the surface of the second side of the hanger body 11 in the axial direction.

Further, preferably, as shown in fig. 3, in the embodiment, an end face of the inner periphery of the retainer cover 12 may be flush with an end face of the protrusion 131. Since the protruding portion 131 protrudes in the radial direction from the inner peripheral surface of the hanger main body 11 and is located on the first side in the axial direction of the hanger main body 11, and the end surface of the inner periphery of the retainer cover 12 is flush with the end surface of the protruding portion 131, the end surface of the inner periphery of the retainer cover 12 also protrudes in the radial direction from the inner peripheral surface of the hanger main body 11, and the retainer cover 12 is located on the second side in the axial direction of the hanger main body 11, thereby forming a groove between the retainer cover 12 and the protruding portion 131, that is, forming a first annular groove 13 on the inner periphery of the hanger 1, wherein the retainer cover 12 and the protruding portion 131 respectively constitute both sides of the first annular groove 13.

Preferably, as shown in fig. 1 to 3, in the embodiment, the suspension ring frame body 11 and the retainer ring cover plate 12 may be fixedly connected by bolts 3. Specifically, the plate surface of the second side of the suspension ring frame body 11 in the axial direction may be provided with bolt holes, the retainer ring cover plate 12 may be provided with through holes corresponding to the positions of the bolt holes, and the bolts 3 penetrate through the through holes of the retainer ring cover plate 12 to be in threaded connection with the bolt holes of the suspension ring frame body 11, so as to fix the suspension ring frame body 11 and the retainer ring cover plate 12 together. Further, preferably, the number of the bolts 3 may be multiple, as shown in fig. 1, each bolt 3 may be uniformly arranged on the second side of the ring hanger body 11 in the axial direction along the circumferential direction, and the specific number of the bolts 3 may be twelve as shown in the embodiment.

Further, preferably, as shown in fig. 2 and 3, in an embodiment, an annular gasket 2 may be disposed between the suspension ring holder body 11 and the retainer cover plate 12. The central axis of the annular washer 2 may be collinear with the central axis of the hanger body 11 and may be equal in size to the overlapping portion of the hanger body 11 and the retainer cover 12. The annular gasket 2 is arranged between the suspension ring frame main body 11 and the retainer ring cover plate 12, so that the retainer ring cover plate 12 and the suspension ring frame main body 11 can be connected more smoothly, namely, the flatness of the retainer ring cover plate 12 relative to the side surface of the suspension ring frame main body 11 can be adjusted by adjusting the screwing degree of the bolts 3 at each position.

Preferably, as shown in fig. 2 and 3, in an embodiment, the rolling connection part may include a ball 4 disposed between the suspension ring frame 1 and the hydraulic nut 7 to achieve the rolling connection between the suspension ring frame 1 and the hydraulic nut 7. Specifically, the periphery of hydraulic nut 7 can be provided with second annular groove 5, and the axis of second annular groove 5 and the axis collineation of first annular groove 13, ball 4 then set up between first annular groove 13 and second annular groove 5, and is preferred, and second annular groove 5 can be the arc wall (the tank bottom surface of second annular groove 5 is the cambered surface promptly).

Further, preferably, as shown in fig. 2 and 3, in an embodiment, the width of the first annular groove 13 may be equal to the width of the second annular groove 5, and the widths of the first annular groove 13 and the second annular groove may be equal to the length of the diameter of the ball 4, the first annular groove 13 is aligned with the second annular groove 5, and the sum of the depth of the first annular groove 13 and the depth of the second annular groove 5 may be equal to the length of the diameter of the ball 4, so that the ball 4 is caught between the first annular groove 13 and the second annular groove 5. Preferably, the number of the balls 4 may be plural, and the plural balls 4 are distributed between the first annular groove 13 and the second annular groove 5 (i.e., the outer periphery of the hydraulic nut 7) at intervals from each other.

Further, preferably, as shown in fig. 1 to 3, in an embodiment, the top of the suspension loop bracket 1 may be provided with a lifting lug 6 for cooperating with a crane. A through hole 61 may be formed in the center of the lifting lug 6 for a lifting hook to pass through, the bottom of the lifting lug 6 is fixed to the top of the lifting ring frame 1, and specifically, the lifting lug 6 may be integrally formed with the lifting ring frame 1.

In the actual use process, the hydraulic nut 7 is horizontally placed, the tail end face of the hydraulic nut 7 faces downwards, the retainer ring cover plate 12, the ball 4, the annular gasket 2 and the suspension ring frame body 11 are sequentially sleeved, and finally the fastening is realized through the bolt 3. The lifting eye 6 can be used for vertically lifting the lifting ring frame 1, further the hydraulic nut 7 is vertically lifted, then the hydraulic nut 7 is close to the tail ends of the stern shaft and the propeller hub of the slipway and aligned with the axis line position, and finally the hydraulic nut 7 is rotated to finish the installation.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A screwing device for a hydraulic nut, characterized by comprising:

the lifting ring frame is formed into a ring shape and is used for being sleeved on the periphery of the hydraulic nut; and

and the rolling connecting part is arranged between the lifting ring frame and the hydraulic nut and is used for enabling the lifting ring frame and the hydraulic nut to be in rolling connection.

2. A screw-in device for a hydraulic nut according to claim 1, wherein the inner periphery of the suspension ring holder is formed with a first annular groove, the suspension ring holder comprising:

the ring hanger comprises a ring hanger body, a plurality of clamping rings and a plurality of clamping rings, wherein the ring hanger body is formed into a ring shape, a protruding part extending into the ring is formed on a first side of the ring hanger body in the axial direction, and a second side of the ring hanger body in the axial direction is an opening side; and

and the retainer ring cover plate is formed into an annular shape and is connected with the second side of the hoisting ring frame main body in the axial direction, and the retainer ring cover plate and the protruding parts respectively form two sides of the first annular groove.

3. A screw-in device for a hydraulic nut according to claim 2, wherein an annular gasket is provided between the hanger bracket body and the retainer cover.

4. A screwing device for a hydraulic nut as claimed in claim 2, wherein the suspension bracket main body and the retainer cover plate are fixedly connected by a bolt.

5. The hydraulic nut screwing device according to claim 4, wherein the number of the bolts is plural, and the bolts are uniformly arranged along the circumferential direction of the suspension ring holder body.

6. A screwing device for a hydraulic nut according to claim 2, wherein a second annular groove is formed in an outer periphery of the hydraulic nut, and the rolling connection portion includes a ball disposed between the first annular groove and the second annular groove.

7. The hydraulic nut screwing device according to claim 6, wherein the number of the balls is plural, and the plural balls are distributed at intervals on an outer periphery of the hydraulic nut.

8. A screw-in device for a hydraulic nut according to claim 6, wherein the width of the first annular groove and the width of the second annular groove are both equal to the length of the diameter of the ball, and the first annular groove and the second annular groove are arranged in alignment.

9. The hydraulic nut as claimed in claim 6, wherein the sum of the depth of the first annular groove and the depth of the second annular groove is equal to the length of the diameter of the ball.

10. A screw-in device for a hydraulic nut according to claim 1, wherein a lifting lug is provided on the top of the lifting ring holder.

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