CN214495546U

CN214495546U - Pulley block capable of adjusting swing angle by self

Info

Publication number: CN214495546U
Application number: CN202121905635.8U
Authority: CN
Inventors: 郭富强; 于海洋; 李新凯; 任路路; 张昆昆; 聂福全; 汪会鹏; 杨文莉; 王峰; 张科广
Original assignee: Henan Weihua Heavy Machinery Co Ltd
Current assignee: Henan Weihua Heavy Machinery Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-10-26
Anticipated expiration: 2031-08-16

Abstract

A pulley block for self-adjusting a swing angle relates to the technical field of cranes and comprises a trolley frame, a winding drum and a lifting hook, wherein the top of the lifting hook is provided with a movable pulley assembly, and the lifting hook also comprises a fixed pulley assembly, a swing arm and a balance arm; a winding drum is arranged on one side of the top of the trolley frame, and a mounting seat is arranged on the other side of the top of the trolley frame; the top of the mounting seat is hinged with a swing arm through a hinge shaft I, the middle position of the balance arm is correspondingly hinged with the top of the swing arm through a hinge shaft II, the axis of the hinge shaft I is correspondingly parallel to the axis of the winding drum, and the hinge shaft II is correspondingly vertical to the axis of the hinge shaft I; the bottom of the swing arm is provided with a fixed pulley assembly, two steel wire ropes are wound and connected between the fixed pulley assembly and the movable pulley assembly, and the two steel wire ropes are respectively positioned on two sides of the movable pulley assembly and the fixed pulley assembly; the utility model discloses simple structure, it is compact reasonable to arrange, and the too big phenomenon that appears taking off the rope of wire rope declination when can effectively avoiding the lifting hook to draw to one side.

Description

Pulley block capable of adjusting swing angle by self

Technical Field

The utility model belongs to the technical field of the hoist technique and specifically relates to a assembly pulley of oneself adjustment pivot angle is related to.

Background

The steel industry is known to be an important prop industry of national economy, plays an important role in the aspects of economic construction, social development, financial tax, national defense construction, stable employment and the like, and makes an important contribution to ensuring the good and fast development of the national economy; the casting crane is indispensable carrying equipment for the steel-making process of modern steel enterprises, and has the characteristics of high working level, severe working environment, complex carrying combination action, high safety performance requirement and the like; under actual conditions, the auxiliary lifting hook of the casting crane needs to be pulled obliquely to assist the main hook to dump molten steel, but the deviation angle between the steel wire rope and the pulley block is too large when the auxiliary lifting hook is pulled obliquely, so that the phenomenon of rope disengagement is easy to occur, and the phenomenon is a problem to be solved by technical personnel in the field.

Disclosure of Invention

In order to overcome the deficiency in the background art, the utility model discloses a pulley block of oneself adjustment pivot angle.

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

a pulley block capable of adjusting a swing angle by self comprises a trolley frame, a winding drum and a lifting hook, wherein a movable pulley assembly, a fixed pulley assembly, a swing arm and a balance arm are arranged at the top of the lifting hook; a winding drum is arranged on one side of the top of the trolley frame, and a mounting seat is arranged on the other side of the top of the trolley frame; the top of the mounting seat is hinged with a swing arm through a hinge shaft I, the middle position of the balance arm is correspondingly hinged with the top of the swing arm through a hinge shaft II, the axis of the hinge shaft I is correspondingly parallel to the axis of the winding drum, and the hinge shaft II is correspondingly vertical to the axis of the hinge shaft I; the swing arm bottom is equipped with fixed pulley assembly, and the winding is connected with two wire rope between fixed pulley assembly and the movable pulley assembly, and two wire rope are located movable pulley assembly and fixed pulley assembly's both sides respectively, and the corresponding end of a rope end and the balance arm of wire rope corresponds the connection, and the corresponding end of another end and the reel stack shell of wire rope corresponds the winding connection, and two wire rope intercrossing winding each other.

Preferably, a joint bearing is arranged between the balance arm and the hinge shaft II.

Preferably, the steel wire rope is correspondingly hinged with the balance arm through a hinged plate.

Preferably, the mounting seat body is provided with an angle sensor for monitoring the swing arm deflection angle.

Preferably, the mounting seat is provided with a limiting sensor corresponding to two sides of the hinge shaft I.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a pulley block capable of adjusting the swing angle by itself, which has simple structure and compact and reasonable layout, and can effectively avoid the phenomenon of rope falling caused by overlarge deflection angle of a steel wire rope when a lifting hook is pulled obliquely; the mount pad top articulates through articulated shaft I has the swing arm, the balance arm intermediate position corresponds articulatedly through articulated shaft II and swing arm top, and the swing arm bottom is equipped with fixed pulley assembly, and when the lifting hook draws to one side, fixed pulley assembly can swing thereupon, avoids wire rope declination too big, and fixed pulley assembly can drive the swing arm simultaneously, and the swing arm drives the corresponding beat of balance arm, can effectively avoid balance arm local compressive stress too big.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a fixed sheave assembly;

fig. 3 is a side view of the fixed sheave assembly.

In the figure: 1. a trolley frame; 2. a reel; 3. a hook; 4. a fixed pulley assembly; 5. swinging arms; 6. a balance arm; 7. a mounting seat; 8. a hinge shaft I; 9. a movable pulley assembly; 10. a hinged shaft II; 11. a wire rope; 12. a knuckle bearing; 13. a hinge plate.

Detailed Description

The present invention will be explained in detail by the following embodiments, and it is to be understood that the present invention is intended to protect all technical improvements within the scope of the present invention, and in the description of the present invention, it is to be understood that if there are the terms "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application, and for the convenience of description of the present invention, it is not intended to indicate or imply that the device or element referred to must have a specific orientation.

With reference to the attached drawings 1-3, the pulley block capable of self-adjusting the swing angle comprises a trolley frame 1, a winding drum 2 and a lifting hook 3, wherein a movable pulley assembly 9, a fixed pulley assembly 4, a swing arm 5 and a balance arm 6 are arranged at the top of the lifting hook 3; a winding drum 2 is arranged on one side of the top of the trolley frame 1, and a mounting seat 7 is arranged on the other side of the top of the trolley frame; the top of the mounting seat 7 is hinged with a swing arm 5 through a hinge shaft I8, the middle position of the balance arm 6 is correspondingly hinged with the top of the swing arm 5 through a hinge shaft II 10, the axis of the hinge shaft I8 is correspondingly parallel to the axis of the winding drum 2, and the hinge shaft II 10 is correspondingly vertical to the axis of the hinge shaft I8; the bottom of the swing arm 5 is provided with a fixed pulley assembly 4, two steel wire ropes 11 are wound and connected between the fixed pulley assembly 4 and the movable pulley assembly 9, the two steel wire ropes 11 are respectively positioned at two sides of the movable pulley assembly 9 and the fixed pulley assembly 4, one rope head end of each steel wire rope 11 is correspondingly connected with the corresponding end of the balance arm 6, the other end of each steel wire rope 11 is correspondingly wound and connected with the corresponding end of the barrel body of the winding barrel 2, and the two steel wire ropes 11 are not crossed and wound, namely, when the lifting hook 3 is obliquely pulled, the fixed pulley assembly 4 can swing along with the steel wire ropes, so that an overlarge deflection angle of the steel wire ropes is avoided, meanwhile, the fixed pulley assembly 4 can drive the swing arm 5, the swing arm 5 drives the balance arm 6 to correspondingly deflect, and overlarge local compressive stress of the balance arm 6 can be effectively avoided;

in addition, a joint bearing 12 is arranged between the balance arm 6 and the hinge shaft II 10, and the joint bearing 12 can effectively improve the self-adaptive adjustment capability of the balance arm 6, so that the excessive local compressive stress of the balance arm 6 is further avoided; the steel wire rope 11 is correspondingly hinged with the balance arm 6 through the hinge plate 13, so that the phenomenon that the end head of one end, connected with the balance arm 6, of the steel wire rope 11 is abraded can be effectively avoided; 7 seat bodies of mount pad are installed and are used for monitoring the angle sensor of 5 beat angles of swing arm, can be through the beat angle of angle sensor real-time supervision swing arm 5 promptly, perhaps spacing sensor is all installed to 7 both sides that correspond articulated shaft I8 of mount pad, can trigger spacing sensor when 5 beat angles of swing arm reach and set for the maximum value promptly, and spacing sensor signals restriction reel 2 actions avoid appearing the too big phenomenon of 5 beat angles of swing arm.

When the lifting hook 3 is pulled obliquely, the fixed pulley component 4 can swing along with the self-adjusting swing angle pulley block, so that the excessive deflection angle of the steel wire rope is avoided, meanwhile, the fixed pulley component 4 can drive the swing arm 5, the swing arm 5 drives the corresponding deflection of the balance arm 6, and the excessive local compressive stress of the balance arm 6 can be effectively avoided; meanwhile, a joint bearing 12 is arranged between the balance arm 6 and the hinge shaft II 10, and the joint bearing 12 can effectively improve the self-adaptive adjustment capability of the balance arm 6, so that the overlarge local compressive stress of the balance arm 6 is further avoided.

The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides a assembly pulley of self-adjusting pivot angle, contains trolley frame (1), reel (2) and lifting hook (3), lifting hook (3) top is equipped with moves loose pulley assembly (9), characterized by: the device also comprises a fixed pulley assembly (4), a swing arm (5) and a balance arm (6); a winding drum (2) is arranged on one side of the top of the trolley frame (1), and a mounting seat (7) is arranged on the other side of the top of the trolley frame; the top of the mounting seat (7) is hinged with a swing arm (5) through a hinge shaft I (8), the middle position of the balance arm (6) is correspondingly hinged with the top of the swing arm (5) through a hinge shaft II (10), the axis of the hinge shaft I (8) is correspondingly parallel to the axis of the winding drum (2), and the axis of the hinge shaft II (10) is correspondingly vertical to the axis of the hinge shaft I (8); swing arm (5) bottom is equipped with fixed pulley assembly (4), fixed pulley assembly (4) and move between pulley assembly (9) the winding be connected with two wire rope (11), and two wire rope (11) are located the both sides of moving pulley assembly (9) and fixed pulley assembly (4) respectively, a rope head end of wire rope (11) corresponds with the corresponding end of balance arm (6) and is connected, another end of wire rope (11) corresponds the winding with the corresponding end of reel (2) stack shell and is connected, and two wire rope (11) are the winding of intercrossing each other.

2. The pulley block for self-adjusting pivot angle of claim 1, wherein: and a joint bearing (12) is arranged between the balance arm (6) and the articulated shaft II (10).

3. The pulley block for self-adjusting pivot angle of claim 1, wherein: the steel wire rope (11) is correspondingly hinged with the balance arm (6) through a hinged plate (13).

4. The pulley block for self-adjusting pivot angle of claim 1, wherein: and the seat body of the mounting seat (7) is provided with an angle sensor for monitoring the swing arm deflection angle.

5. The pulley block for self-adjusting pivot angle of claim 1, wherein: and the mounting seat (7) is provided with a limiting sensor corresponding to two sides of the hinge shaft I (8).