CN211895674U - Lifting appliance capable of automatically adjusting lifting gravity center - Google Patents

Lifting appliance capable of automatically adjusting lifting gravity center Download PDF

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Publication number
CN211895674U
CN211895674U CN201922366832.6U CN201922366832U CN211895674U CN 211895674 U CN211895674 U CN 211895674U CN 201922366832 U CN201922366832 U CN 201922366832U CN 211895674 U CN211895674 U CN 211895674U
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CN
China
Prior art keywords
lifting
supporting
adjusting
switch
lead screw
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Active
Application number
CN201922366832.6U
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Chinese (zh)
Inventor
杜明
杨兰
郭晋敏
闫宏亮
郭凯
琚岱斌
朱洪云
双振侠
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Jinxi Industries Group Co Ltd
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Jinxi Industries Group Co Ltd
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Priority to CN201922366832.6U priority Critical patent/CN211895674U/en
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Abstract

The utility model relates to a lifting appliance capable of automatically adjusting the lifting gravity center, which comprises a supporting beam, lifting hooks connected with the two ends of the supporting beam and used for lifting heavy objects, and a lifting ring arranged in the middle of the upper end of the supporting beam and used for connecting a crane; the method is characterized in that: the lifting ring is connected with the supporting beam through a self-balancing mechanism; self-balancing mechanism is including fixing two screw rod supports of a supporting beam upper end, rotate to be connected adjust the lead screw between two screw rod supports, set up respectively adjust the lead screw both ends and be used for the drive adjust two driving motor of lead screw pivoted, and control two respectively whether driving motor two balanced regulating switch of pivoted, two driving motor rotation opposite direction, the middle part threaded connection of adjusting the lead screw in the screw hole of rings lower extreme. The utility model discloses a lifting appliance can guarantee that lifting appliance and lifted article are in the horizontality according to the lifting point of the focus position automatically regulated lifting appliance of lifting article.

Description

Lifting appliance capable of automatically adjusting lifting gravity center
Technical Field
The utility model relates to an automatic adjust and lift by crane centrobaric hoist belongs to the hoist field.
Background
The lifting appliance is a device for connecting a lifting hook of a crane and a heavy object in the process of lifting the heavy object. In actual operation, the gravity center of a lifted object often deviates from the lifting center line of the lifting appliance, so that the inclination angles of the lifting appliance and the lifted object are too large, the normal use of the lifted object is influenced, and even the lifted object is damaged. Generally, the lifting point is determined again through repeated tests by replacing and using a special lifting appliance or manually changing the lifting point of a lifting ring on the lifting appliance, so that the lifting appliance and a lifted object are ensured to be in a horizontal state, the use is very inconvenient, and the production efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the focus that traditional hoist can't adapt to the article of lifting by crane and skew, cause the hoist and lift by crane the too big scheduling problem of article inclination, and provide an automatically regulated lifting by crane centrobaric hoist.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a lifting appliance capable of automatically adjusting the lifting gravity center, which comprises a supporting beam, lifting hooks connected with the two ends of the supporting beam and used for lifting heavy objects, and a lifting ring arranged in the middle of the upper end of the supporting beam and used for connecting a crane; the lifting ring is connected with the supporting beam through a self-balancing mechanism;
the self-balancing mechanism comprises two lead screw supports fixed at the upper end of the supporting beam, an adjusting lead screw rotationally connected between the two lead screw supports, two driving motors respectively arranged at two ends of the adjusting lead screw and used for driving the adjusting lead screw to rotate, and two balance adjusting switches respectively controlling the two driving motors to rotate or not, the rotating directions of the two driving motors are opposite, and the middle part of the adjusting lead screw is in threaded connection with a screw hole at the lower end of the hanging ring;
the balance adjusting switch comprises a switch body which is fixed on the supporting beam and is internally provided with a horizontal sliding cavity, a mass block which is connected in the horizontal sliding cavity of the switch body in a sliding way, and two conducting rods which are inserted inwards from one end of the horizontal sliding cavity of the switch body; a conducting plate is fixed on one side of the mass block opposite to the installation conducting rod, and a reset tension spring is arranged between the other side of the mass block and the end part of the switch body; the two balance adjusting switches are symmetrically arranged on the supporting beam, and two conducting rods of each balance adjusting switch are connected with two poles of a starting circuit of the driving motor;
when a supporting beam of the lifting appliance is in a horizontal state, the mass blocks of the two balance adjusting switches are both positioned in the middle of the respective horizontal sliding cavity, and the mass blocks are not in contact with the conductive rods;
when the supporting beam of the lifting appliance inclines towards one end, the mass block of one balance adjusting switch is contacted with the two conducting rods, and the circuit of the driving motor connected with the mass block is started to drive the adjusting screw rod to rotate, so that the lifting ring slides towards the inclined direction until the supporting beam of the lifting appliance is horizontal; and the mass block of the other balance adjusting switch is not contacted with the conductive rod all the time in the tilting and adjusting process.
The supporting beam is connected with the lifting hook through a chain.
The lifting ring is connected with the supporting beam through a horizontal guide rail.
A damping spring is arranged between the mass block and the end part of one side of the installation, so that the mass block is prevented from damaging the conductive rod when impacting the conductive rod.
The conducting rod is connected with the end part of the switch body through the ejection spring, so that the conducting plate at the end part of the mass block can be simultaneously contacted with the two conducting rods at the same end.
Has the advantages that:
the utility model discloses an automatic balanced hoist can guarantee the hoist and be in the horizontality by the hoist article according to the lifting point of the focus position automatically regulated hoist of lifting by crane article, satisfies the requirement of lifting by crane article gradient, reduces the frequency of changing the hoist, improves production efficiency.
Drawings
Fig. 1 is a schematic structural view of the lifting appliance of the present invention;
fig. 2 is a schematic structural view of a balance adjusting switch in the lifting appliance of the present invention;
in the figure, 1-hook; 2-a support beam; 3-hoisting rings; 4-a screw bracket; 5-adjusting the screw rod; 6-driving a motor; 7-balance adjustment switch; 8-a switch body; 9-a mass block; 10-a conductive rod; 11-a return tension spring; 12-a conductive sheet; 13-a chain; 14 a horizontal guide rail; 15-ejection spring; 16-damping spring.
Detailed Description
The invention is further described with reference to the following figures and examples:
examples
As shown in fig. 1, the lifting appliance for automatically adjusting the lifting center of gravity of the utility model comprises a supporting beam 2, lifting hooks 1 connected to two ends of the supporting beam 2 for lifting heavy objects, and a lifting ring 3 arranged in the middle of the upper end of the supporting beam 2 for connecting a crane; the lifting ring is connected with the support beam 2 through a self-balancing mechanism;
the self-balancing mechanism comprises two lead screw supports 4 fixed at the upper end of the support beam 2, an adjusting lead screw 5 rotatably connected between the two lead screw supports 4, two driving motors 6 respectively arranged at two ends of the adjusting lead screw 5 and used for driving the adjusting lead screw 5 to rotate, and two balance adjusting switches 7 respectively controlling the two driving motors to rotate or not, the rotating directions of the two driving motors are opposite, and the middle part of the adjusting lead screw 5 is in threaded connection with a screw hole at the lower end of the lifting ring 3;
as shown in fig. 2, the balance adjusting switch 7 includes a switch body 8 fixed on the support beam 2 and having a horizontal sliding cavity therein, a mass block 9 slidably connected in the horizontal sliding cavity of the switch body 8, and two conductive rods 10 inserted inward from one end of the horizontal sliding cavity of the switch body 8; a conducting plate 12 is fixed on one side of the mass block 9 opposite to the installation conducting rod 10, and a reset tension spring 11 is installed between the other side of the mass block 9 and the end part of the switch body 8; the two balance adjusting switches 7 are symmetrically arranged on the supporting beam 2, and two conducting rods 10 of each balance adjusting switch 7 are connected with two poles of a starting circuit of the driving motor 6;
when the supporting beam 2 of the lifting appliance is in a horizontal state, the mass blocks 9 of the two balance adjusting switches 7 are both positioned in the middle of the respective horizontal sliding cavity under the action of the reset tension spring 11, and the mass blocks 9 in the two balance adjusting switches 7 are not in contact with the conductive rod 10;
when the supporting beam 2 of the lifting appliance inclines towards one end, the mass block 9 of one balance adjusting switch 7 slides towards one side of the conducting rod 10 under the action of gravity, the conducting strip of the mass block 9 is simultaneously contacted with the two conducting rods 10, the circuit of the driving motor 6 connected with the two conducting rods 10 is started to drive the adjusting screw 5 to rotate, the hanging ring 3 slides towards the inclined direction, the reset tension spring 11 enables the mass block 9 to be positioned in the middle of the horizontal sliding cavity until the supporting beam 2 of the lifting appliance is horizontal, at the moment, the mass block 9 is not contacted with the conducting rods 10, and the connected driving motor 6 stops rotating; the mass 9 of the other balancing adjusting switch 7 is not in contact with the conductive rod 10 at all times during the tilting and adjusting process.
The supporting beam 2 is connected with the lifting hook 1 through a chain 13.
The lifting ring 3 is connected with the support beam 2 through a horizontal guide rail 14.
A damping spring 16 is arranged between the mass block 9 and the end part on the mounting side, so that the mass block 9 is prevented from damaging the conductive rod 10 when impacting the conductive rod 10.
The conducting rods 10 are connected with the end part of the switch body 8 through ejection springs 15, so that the conducting strips 12 at the end part of the mass block 9 can be simultaneously contacted with the two conducting rods 10 at the same end.

Claims (5)

1. A lifting appliance capable of automatically adjusting the lifting gravity center comprises a supporting beam, lifting hooks connected to two ends of the supporting beam and used for lifting a heavy object, and a lifting ring arranged in the middle of the upper end of the supporting beam and used for connecting a crane; the method is characterized in that: the lifting ring is connected with the supporting beam through a self-balancing mechanism;
the self-balancing mechanism comprises two lead screw supports fixed at the upper end of the supporting beam, an adjusting lead screw rotationally connected between the two lead screw supports, two driving motors respectively arranged at two ends of the adjusting lead screw and used for driving the adjusting lead screw to rotate, and two balance adjusting switches respectively controlling the two driving motors to rotate or not, the rotating directions of the two driving motors are opposite, and the middle part of the adjusting lead screw is in threaded connection with a screw hole at the lower end of the hanging ring;
the balance adjusting switch comprises a switch body which is fixed on the supporting beam and is internally provided with a horizontal sliding cavity, a mass block which is connected in the horizontal sliding cavity of the switch body in a sliding way, and two conducting rods which are inserted inwards from one end of the horizontal sliding cavity of the switch body; a conducting plate is fixed on one side of the mass block opposite to the installation conducting rod, and a reset tension spring is arranged between the other side of the mass block and the end part of the switch body; the two balance adjusting switches are symmetrically arranged on the supporting beam, and two conducting rods of each balance adjusting switch are connected with two poles of a starting circuit of the driving motor;
when a supporting beam of the lifting appliance is in a horizontal state, the mass blocks of the two balance adjusting switches are both positioned in the middle of the respective horizontal sliding cavity, and the mass blocks are not in contact with the conductive rods;
when the supporting beam of the lifting appliance inclines towards one end, the mass block of one balance adjusting switch is contacted with the two conducting rods, and the circuit of the driving motor connected with the mass block is started to drive the adjusting screw rod to rotate, so that the lifting ring slides towards the inclined direction until the supporting beam of the lifting appliance is horizontal; and the mass block of the other balance adjusting switch is not contacted with the conductive rod all the time in the tilting and adjusting process.
2. The lifting appliance capable of automatically adjusting the lifting gravity center as claimed in claim 1, wherein: the supporting beam is connected with the lifting hook through a chain.
3. The lifting appliance capable of automatically adjusting the lifting gravity center as claimed in claim 1, wherein: the lifting ring is connected with the supporting beam through a horizontal guide rail.
4. The lifting appliance capable of automatically adjusting the lifting gravity center as claimed in claim 1, wherein: and a damping spring is arranged between the mass block and the end part on one side of the mounting.
5. The lifting appliance capable of automatically adjusting the lifting gravity center as claimed in claim 1, wherein: the conducting rod is connected with the end part of the switch body through the ejection spring, so that the conducting plate at the end part of the mass block can be simultaneously contacted with the two conducting rods at the same end.
CN201922366832.6U 2019-12-25 2019-12-25 Lifting appliance capable of automatically adjusting lifting gravity center Active CN211895674U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922366832.6U CN211895674U (en) 2019-12-25 2019-12-25 Lifting appliance capable of automatically adjusting lifting gravity center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922366832.6U CN211895674U (en) 2019-12-25 2019-12-25 Lifting appliance capable of automatically adjusting lifting gravity center

Publications (1)

Publication Number Publication Date
CN211895674U true CN211895674U (en) 2020-11-10

Family

ID=73293489

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922366832.6U Active CN211895674U (en) 2019-12-25 2019-12-25 Lifting appliance capable of automatically adjusting lifting gravity center

Country Status (1)

Country Link
CN (1) CN211895674U (en)

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