Electric adjusting joint of hoisting sling

Abstract

The utility model provides an electric adjusting joint for a hoisting sling. The electric adjusting joint comprises a joint body, a screw rod and a rotary driving mechanism, a rotating sleeve is movably installed in an inner cavity of the connector body, a first axial limiting component and a second axial limiting component are installed at the top and the bottom of the rotating sleeve respectively, and axial limiting of the rotating sleeve is achieved through arrangement of the first axial limiting component and the second axial limiting component. The rotating sleeve is connected with a screw rod through threads, a limiting block matched with a longitudinal groove formed in the screw rod is fixedly installed on the connector body, the screw rod extends to the outer side of the connector body in the vertical direction, a connecting part connected with a lifting appliance is installed at the top of the screw rod, and a lifting component is arranged at the bottom of the connector body; the rotation driving mechanism is used for performing rotation driving on the rotating sleeve; the rotating sleeve is rotationally driven through the rotating driving mechanism, so that the whole formed by the rotating sleeve and the connector body moves up and down along the axis of the screw, and the overall length of the connector is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting slings, in particular to an electric regulating joint for lifting slings. Background Art

[0002] The maintenance process of a hydro-turbine generator set involves a lot of heavy lifting work. During the operation, the heavy objects need to be adjusted horizontally to ensure the accuracy and safety of the lifting process. At present, the leveling of heavy objects is done manually by adjusting the length of the sling, the number of threads on the sling screw, the length of the basket bolt, etc. When the weight of the hoisting parts of the hydro-turbine generator set is relatively large, manual adjustment is inefficient, and multiple adjustments are required, which is uncertain. The increase in the number of adjustments means that large objects need to be lifted and lowered frequently, and the safety risk of lifting increases. Utility Model Content

[0003] The purpose of the utility model is to provide an electric adjustment joint for lifting slings, which can rotate and drive the rotating sleeve through a rotary drive mechanism to realize the vertical movement of the rotating sleeve and the joint body along the axis of the screw, thereby achieving the purpose of adjusting the overall length of the joint and adjusting the level of the lifting parts. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] An electric adjustment joint for lifting slings, comprising a joint body, a screw rod and a rotation drive mechanism;

[0005] A rotating sleeve is movably installed in the inner cavity of the joint body, a first axial limiting component and a second axial limiting component are respectively installed on the top and bottom of the rotating sleeve, the rotating sleeve is connected to the screw rod through a thread, a limiting block matched with the longitudinal groove provided on the screw rod is fixedly installed on the joint body, the screw rod extends to the outside of the joint body in the vertical direction, a connecting part connected to the sling is installed on the top of the screw rod, and a lifting component is provided at the bottom of the joint body;

[0006] The rotation drive mechanism is installed on the joint body and is used to rotationally drive the rotating sleeve.

[0007] The rotary drive mechanism comprises a gear meshing with a gear portion arranged on the outer circumference of the rotating sleeve, and the gear is connected to the output end of the motor through a reducer.

[0008] The first axial limiting component is a thrust ball bearing, and the second axial limiting component is an angular contact bearing.

[0009] The thread on the screw rod is a T-shaped thread.

[0010] The lifting component is one of a shackle, a lifting ring, a round ring, a pear-shaped ring, an S hook, a nose hook, an American hook, a ram's horn hook, an eye-shaped sliding hook, a lifting screw with a safety card, and a pin.

[0011] A limiting body is provided at the bottom of the screw rod as a limiting protection.

[0012] The utility model comprises a joint body, a screw rod and a rotary drive mechanism; when working, the connection part at the top of the screw rod is first connected to the sling through a sling or a steel cable, and the lifting component is connected to the component to be lifted through the sling, and then lifted. After the lifting component is lifted to a certain height, the horizontal deviation of the component to be lifted is measured, and the adjustment amount of the corresponding joint length of the present application is calculated according to the horizontal deviation value and the azimuth, and then the rotating sleeve is rotationally driven by the rotary drive mechanism to realize the upward and downward movement of the whole formed by the rotating sleeve and the joint body along the axis of the screw rod, thereby realizing the purpose of adjusting the overall length of the joint of the present application and adjusting the level of the component to be lifted, replacing manual adjustment, improving the adjustment efficiency, and avoiding the safety risk of horizontal adjustment of the lifting operation component; the electric adjustment scheme realized by the utility model can provide an intelligent solution for the adjustment of large-scale slings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 A cross-sectional view of an electric adjustment joint for a lifting sling provided by an embodiment of the utility model;

[0015] Figure 2 The embodiment of the utility model provides Figure 1 Enlarged view of the middle M part;

[0016] Figure 3 A right side view of an electric adjustment joint for a lifting sling provided by an embodiment of the utility model;

[0017] In the figure: joint body 1, limit block 1a, screw 2, longitudinal groove 2a, first axial limit component 3, second axial limit component 4, rotating sleeve 5, gear part 5a, connecting part 6, lifting part 7, gear 8, reducer 9, motor 10, limit body 11. DETAILED DESCRIPTION

[0018] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0019] See attached Figure 1-3 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0020] A kind of electric adjustment joint for lifting slings, comprising a joint body 1, a screw rod 2 and a rotation drive mechanism; a rotating sleeve 5 is movably installed in the inner cavity of the joint body 1, and a first axial limiting component 3 and a second axial limiting component 4 are respectively installed at the top and the bottom of the rotating sleeve 5, and the axial limitation of the rotating sleeve 5 is achieved by the setting of the first axial limiting component 3 and the second axial limiting component 4; the rotating sleeve 5 is connected to the screw rod 2 through a thread, and a limiting block 1a cooperating with a longitudinal groove 2a provided on the screw rod 2 is fixedly installed on the joint body 1, and the screw rod 2 extends to the outside of the joint body 1 in the vertical direction, and a connecting part 6 connected to the sling is installed on the top of the screw rod 2, and a lifting component 7 is provided at the bottom of the joint body 1; the rotation drive mechanism is installed on the joint body 1, and is used to rotationally drive the rotating sleeve 5. Usually four sets of joints of the present application form a group, and a suitable lifting plan is formulated according to the structure of the component to be lifted, so as to determine the number of the present application; when working, the connecting part 6 at the top of the screw rod 2 is first connected to the sling through a sling or a steel cable, and the lifting component 7 is connected to the component to be lifted through the sling, and then lifted. After the lifting component is lifted to a certain height, the horizontal deviation of the component to be lifted is measured, and the adjustment amount of the corresponding length of the joint of the present application is calculated according to the horizontal deviation value and the azimuth, and then the rotating sleeve 5 is rotationally driven by the rotary drive mechanism to realize the up and down movement of the whole formed by the rotating sleeve 5 and the joint body 1 along the axis of the screw rod 2, so as to achieve the purpose of adjusting the overall length of the joint of the present application and adjusting the level of the component to be lifted.

[0021] Furthermore, the rotary drive mechanism includes a gear 8 meshing with a gear portion 5a arranged on the outer circumference of the rotating sleeve 5. The gear 8 is connected to the output end of the motor 10 through a reducer 9. The motor 10 drives the gear 8 to rotate, thereby driving the rotating sleeve 5 to rotate, so as to realize the up and down movement of the rotating sleeve 5 and the joint body 1 along the axis of the screw 2.

[0022] Furthermore, the first axial limiting component 3 is a thrust ball bearing, and the second axial limiting component 4 is an angular contact bearing, so as to achieve axial limiting of the rotating sleeve 5 while bearing axial load.

[0023] Furthermore, the thread on the screw rod 2 is a T-shaped thread. When the suspension rod is subjected to force, the force direction is the vertical direction of the thread. The trapezoidal inclined surface will generate an inward component force, which can produce a self-locking effect.

[0024] Further, the lifting component 7 is a lifting component selected from the group consisting of a shackle, a lifting ring, a round ring, a pear-shaped ring, an S hook, a nose hook, an American hook, a ram's horn hook, an eye-shaped sliding hook, a lifting screw with a safety card, and a pin.

[0025] Furthermore, a limiting body 11 is provided at the bottom of the screw rod 2 to prevent the screw rod 2 from being out of engagement with the rotating sleeve 5 .

Claims

1. An electric adjustment joint for lifting slings, characterized in that: It comprises a joint body (1), a screw rod (2) and a rotation drive mechanism; A rotating sleeve (5) is movably installed in the inner cavity of the joint body (1); a first axial limiting component (3) and a second axial limiting component (4) are respectively installed on the top and bottom of the rotating sleeve (5); the rotating sleeve (5) is connected to the screw rod (2) through a thread; a limiting block (1a) that cooperates with a longitudinal groove (2a) provided on the screw rod (2) is fixedly installed on the joint body (1); the screw rod (2) extends to the outside of the joint body (1) in a vertical direction; a connecting portion (6) connected to a sling is installed on the top of the screw rod (2); and a lifting component (7) is provided at the bottom of the joint body (1); The rotary drive mechanism is mounted on the joint body (1) and is used to drive the rotating sleeve (5) to rotate.

2. The electric adjustment joint for lifting sling according to claim 1, characterized in that: The rotary drive mechanism comprises a gear (8) meshing with a gear portion (5a) arranged on the outer circumference of the rotating sleeve (5); the gear (8) is connected to the output end of the motor (10) via a reducer (9).

3. The electric adjustment joint for lifting slings according to claim 2, characterized in that: The first axial limiting component (3) is a thrust ball bearing, and the second axial limiting component (4) is an angular contact bearing.

4. The electric adjustment joint for lifting slings according to claim 3 is characterized by: The thread on the screw rod (2) is a T-shaped thread.

5. The electric adjustment joint for lifting slings according to claim 4, characterized in that: The lifting component (7) is one of a shackle, a lifting ring, a round ring, a pear-shaped ring, an S hook, a nose hook, an American hook, a ram's horn hook, an eye-shaped sliding hook, a lifting screw with a safety card, and a pin.

6. The electric adjustment joint for lifting slings according to claim 5, characterized in that: A limiting body (11) is provided at the bottom of the screw rod (2).

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