CN212559199U

CN212559199U - Hoisting mechanism with lever force increasing structure

Info

Publication number: CN212559199U
Application number: CN202020858989.0U
Authority: CN
Inventors: 李文军; 宋井西
Original assignee: Jiangsu Yuefa Construction Engineering Co ltd
Current assignee: Jiangsu Yuefa Construction Engineering Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-02-19
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a mechanism of lifting by crane that possesses lever reinforcement structure, including lifting by crane the base and fixing the grudging post that lifts by crane on the base, the fixed plate that is provided with in middle part of the grudging post that lifts by crane rotates through the pivot on the fixed plate and installs the lever davit, and the right-hand member of lever davit hangs the frame through first lifting rope fixedly connected with, is located to lift by crane on the left base that lifts by crane of grudging post fixed mounting have first U type frame and second U type frame, and first U type frame is located the left side of second U type frame. The utility model discloses in, hoist the lever davit simultaneously through second lifting rope and third lifting rope, both can reach the purpose of lever reinforcement, can ensure the security of lifting by crane the in-process again to fix a position through the meshing of braking latch to first brake gear and second brake gear, thereby can guarantee that the steadiness of lever davit after lifting by crane is better, avoid taking place the accident that falls back easily in the past, safe steadiness obtains great guarantee.

Description

Hoisting mechanism with lever force increasing structure

Technical Field

The utility model relates to a lift by crane technical field, especially relate to a mechanism of lifting by crane that possesses lever reinforcement structure.

Background

In the prior art, machines capable of increasing force or saving labor are almost all products of lever principle, such as levers, movable pulleys, pulley blocks, cranes and the like.

However, in the existing hoisting mechanism with the lever force increasing structure, when some hoisting frames or hoisting platforms have poor stability after hoisting, the falling accident is easy to occur, and the safety and stability cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hoisting mechanism with a lever force increasing structure.

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

a lifting mechanism with a lever force increasing structure comprises a lifting base and a lifting vertical frame fixed on the lifting base, wherein a fixed plate is fixedly arranged in the middle of the lifting vertical frame, a lever lifting arm is rotatably arranged on the fixed plate through a rotating shaft, the right end of the lever lifting arm is fixedly connected with a lifting frame through a first lifting rope, a first U-shaped frame and a second U-shaped frame are fixedly arranged on the lifting base on the left side of the lifting vertical frame, the first U-shaped frame is arranged on the left side of the second U-shaped frame, a first winding disc and a second winding disc are respectively rotatably arranged in the first U-shaped frame and the second U-shaped frame, a second lifting rope and a third lifting rope are respectively wound on the first winding disc and the second winding disc, the other end of the third lifting rope is fixedly connected with the left end of the lever lifting arm, a fixed pulley is rotatably arranged at the top of the lifting vertical frame, and one end, far away from the first winding disc, of the second lifting rope is fixedly connected with the right side of the top of the lever lifting arm after, one side that first U type frame and second U type frame kept away from each other is fixed mounting respectively has first motor and second motor, the output shaft of first motor and second motor is the first spool of fixedly connected with and the second spool respectively, and the one end that first spool and second spool are close to each other runs through first U type frame and second U type frame respectively and fixed the cup joint has first brake gear and second brake gear, and fix the cup joint respectively on first spool and second spool on first rolling dish and the second rolling dish, the top fixed mounting that lifts by crane the base has the hydraulic telescoping cylinder, the output fixedly connected with braking latch of hydraulic telescoping cylinder, and the bottom of first brake gear and second brake gear all meshes the location with the braking latch mutually.

Preferably, the right side of the fixed plate is fixedly provided with a limiting block, the top of the limiting block is provided with a rubber block, and the top side of the rubber block is matched with the bottom side of the lever suspension arm for buffering.

Preferably, a wheel carrier is fixedly arranged at the top of the lifting vertical frame, and the fixed pulley is rotatably arranged on the wheel carrier through a pin shaft.

Preferably, the inner walls of the two sides of the first U-shaped frame are fixedly sleeved with first bearings, and the first reel shaft is rotatably mounted on the first bearings.

Preferably, the inner walls of the two sides of the second U-shaped frame are fixedly sleeved with second bearings, and the second reel is rotatably installed on the second bearings.

Preferably, both sides of the braking latch are provided with sliding blocks, one side of the first U-shaped frame, which is close to the second U-shaped frame, is provided with a sliding groove, and the sliding blocks are connected with the sliding grooves in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

in the utility model, the first motor and the second motor are rotated simultaneously, the first winding disc and the second winding disc are driven to rotate by the first scroll and the second scroll respectively, so that the second lifting rope and the third lifting rope can be driven to be wound and unwound simultaneously, the lever lifting arm can be made to move up and down around the rotating shaft as the center, when the right end of the lever lifting arm rises, the lifting frame can be lifted by the first lifting rope, and the brake latch is pushed to move up by the output end of the hydraulic telescopic cylinder after the lifting, so that the brake latch is used for meshing and positioning the first brake gear and the second brake gear;

to sum up, the utility model discloses in, hoist the lever davit simultaneously through second lifting rope, third lifting rope, both can reach the purpose of lever reinforcement, can ensure the security of lifting by crane the in-process again to fix a position through the meshing of braking latch to first brake gear and second brake gear, thereby can guarantee that the steadiness of lever davit after lifting by crane is better, avoid taking place the accident that falls back easily in the past, safe steadiness obtains great guarantee.

Drawings

Fig. 1 is a schematic structural diagram of a lifting mechanism with a lever force-increasing structure according to the present invention;

fig. 2 is a partially enlarged schematic structural view of fig. 1 according to the present invention;

fig. 3 is a schematic diagram of a state when the middle brake latch of the present invention is not engaged with the first brake gear and the second brake gear.

In the figure: the device comprises a lifting base 1, a lifting stand 2, a fixing plate 3, a rotating shaft 4, a lever lifting arm 5, a first lifting rope 6, a lifting frame 7, a first U-shaped frame 8, a first motor 81, a first reel 82, a first winding disc 83, a second lifting rope 84, a first brake gear 85, a second U-shaped frame 9, a second motor 91, a second reel 92, a second winding disc 93, a third lifting rope 94, a second brake gear 95, a hydraulic telescopic cylinder 10, a brake latch 11, a sliding block 12, a limiting block 13, a rubber block 14 and a fixed pulley 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a lifting mechanism with a lever force-increasing structure comprises a lifting base 1 and a lifting upright frame 2 fixed on the lifting base 1, wherein a fixed plate 3 is fixedly arranged in the middle of the lifting upright frame 2, a lever suspension arm 5 is rotatably arranged on the fixed plate 3 through a rotating shaft 4, the right end of the lever suspension arm 5 is fixedly connected with a suspension frame 7 through a first suspension rope 6, a first U-shaped frame 8 and a second U-shaped frame 9 are fixedly arranged on the lifting base 1 on the left side of the lifting upright frame 2, the first U-shaped frame 8 is arranged on the left side of the second U-shaped frame 9, a first winding disc 83 and a second winding disc 93 are rotatably arranged in the first U-shaped frame 8 and the second U-shaped frame 9 respectively, a second suspension rope 84 and a third suspension rope 94 are respectively wound on the first winding disc 83 and the second winding disc 93, and the other end of the third suspension rope 94 is fixedly connected with the left end of the lever suspension arm 5, the top of the lifting vertical frame 2 is rotatably provided with a fixed pulley 15, one end of the second lifting rope 84 far away from the first winding disc 83 is fixedly connected with the right side of the top of the lever arm 5 after being transmitted by the fixed pulley 15, one sides of the first U-shaped frame 8 and the second U-shaped frame 9 far away from each other are respectively fixedly provided with a first motor 81 and a second motor 91, output shafts of the first motor 81 and the second motor 91 are respectively fixedly connected with a first reel 82 and a second reel 92, one ends of the first reel 82 and the second reel 92 close to each other respectively penetrate through the first U-shaped frame 8 and the second U-shaped frame 9 and are fixedly sleeved with a first brake gear 85 and a second brake gear 95, the first winding disc 83 and the second winding disc 93 are respectively fixedly sleeved on the first reel 82 and the second reel 92, the top of the lifting base 1 is fixedly provided with a hydraulic telescopic cylinder 10, and the output end of the hydraulic telescopic cylinder 10 is fixedly connected with a brake latch 11, the bottoms of the first brake gear 85 and the second brake gear 95 are meshed with the brake latch 11 for positioning; the utility model discloses in, hoist lever davit 5 simultaneously through second lifting rope 84 and third lifting rope 94, both can reach the purpose of lever reinforcement, can ensure the security of lifting by crane the in-process again to fix a position through the meshing of braking latch 11 to first brake gear 85 and second brake gear 95, thereby can guarantee that lever davit 5 is better at the steadiness after lifting by crane, avoid taking place the accident that falls back easily in the past, safe steadiness obtains great guarantee.

Specifically, a limiting block 13 is fixedly arranged on the right side of the fixing plate 3, a rubber block 14 is arranged at the top of the limiting block 13, and the top side of the rubber block 14 is matched with and buffered by the bottom side of the lever arm 5.

Specifically, a wheel carrier is fixedly arranged at the top of the lifting vertical frame 2, and the fixed pulley 15 is rotatably mounted on the wheel carrier through a pin shaft.

Specifically, the inner walls of the two sides of the first U-shaped frame 8 are fixedly sleeved with first bearings, and the first reel 82 is rotatably mounted on the first bearings.

Specifically, a second bearing is fixedly sleeved on the inner walls of two sides of the second U-shaped frame 9, and the second reel 92 is rotatably installed on the second bearing.

Specifically, both sides of the braking latch 11 are provided with sliding blocks 12, one sides of the first U-shaped frame 8 and the second U-shaped frame 9, which are close to each other, are provided with sliding grooves, and the sliding blocks 12 are connected with the sliding grooves in a sliding manner.

The working principle is as follows: when the device is used, the first motor 81 and the second motor 91 rotate simultaneously, the first winding disc 83 and the second winding disc 93 are driven to rotate by the first reel 82 and the second reel 92 respectively, so that the second lifting rope 84 and the third lifting rope 94 can be driven to be simultaneously wound and unwound, the lever suspension arm 5 can move up and down around the rotating shaft 4 as a center, when the right end of the lever suspension arm 5 rises, the suspension frame 7 can be suspended by the first lifting rope 6 (as shown in fig. 1), after the lever suspension arm is suspended, the brake latch 11 is pushed by the output end of the hydraulic telescopic cylinder 10 to move up, the brake latch 11 is used for meshing and positioning the first brake gear 85 and the second brake gear 95 (as shown in fig. 2), and therefore, the lever suspension arm 5 is simultaneously suspended by the second lifting rope 84 and the third lifting rope 94, the purpose of lever force increasing can be achieved, and the safety in the lifting process can be ensured, and the first brake gear 85 and the second brake gear 95 are positioned by the brake latch 11 in a meshing manner, so that the lever suspension arm 5 can be guaranteed to have better stability after being lifted, the accident that the lever suspension arm falls back easily in the past is avoided, and the safety and stability are greatly guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A hoisting mechanism with a lever force increasing structure comprises a hoisting base (1) and a hoisting upright frame (2) fixed on the hoisting base (1), and is characterized in that a fixing plate (3) is fixedly arranged in the middle of the hoisting upright frame (2), a lever hoisting arm (5) is rotatably arranged on the fixing plate (3) through a rotating shaft (4), the right end of the lever hoisting arm (5) is fixedly connected with a hoisting frame (7) through a first hoisting rope (6), a first U-shaped frame (8) and a second U-shaped frame (9) are fixedly arranged on the hoisting base (1) on the left side of the hoisting upright frame (2), the first U-shaped frame (8) is positioned on the left side of the second U-shaped frame (9), a first winding disc (83) and a second winding disc (93) are respectively rotatably arranged in the first U-shaped frame (8) and the second U-shaped frame (9), and a second hoisting rope (84) and a third hoisting rope (94) are respectively wound on the first winding disc (83) and the second winding disc (93), the other end of the third lifting rope (94) is fixedly connected with the left end of the lever suspension arm (5), the top of the lifting stand (2) is rotatably provided with a fixed pulley (15), one end, far away from the first winding disc (83), of the second lifting rope (84) is transmitted through the fixed pulley (15) and then fixedly connected with the right side of the top of the lever suspension arm (5), one sides, far away from each other, of the first U-shaped frame (8) and the second U-shaped frame (9) are respectively and fixedly provided with a first motor (81) and a second motor (91), output shafts of the first motor (81) and the second motor (91) are respectively and fixedly connected with a first reel (82) and a second reel (92), one ends, close to each other, of the first reel (82) and the second reel (92) respectively penetrate through the first U-shaped frame (8) and the second U-shaped frame (9) and are fixedly connected with a first brake gear (85) and a second brake gear (95), and fixedly sleeve joint respectively on first reel (82) and second reel (92) on first rolling dish (83) and second rolling dish (93), lift by crane the top fixed mounting of base (1) and have hydraulic telescoping cylinder (10), the output fixedly connected with braking latch (11) of hydraulic telescoping cylinder (10), and the bottom of first brake gear (85) and second brake gear (95) all meshes the location with braking latch (11) mutually.

2. The hoisting mechanism with the lever force increasing structure is characterized in that a limiting block (13) is fixedly arranged on the right side of the fixing plate (3), a rubber block (14) is arranged on the top of the limiting block (13), and the top side of the rubber block (14) is matched with and buffered by the bottom side of the lever arm (5).

3. The hoisting mechanism with the lever force increasing structure as claimed in claim 1, wherein a wheel carrier is fixedly arranged on the top of the hoisting stand (2), and the fixed pulley (15) is rotatably mounted on the wheel carrier through a pin shaft.

4. The hoisting mechanism with lever force increasing structure as claimed in claim 1, wherein the first U-shaped frame (8) is fixedly sleeved with a first bearing on both inner side walls, and the first reel (82) is rotatably mounted on the first bearing.

5. The lifting mechanism with lever force-increasing structure as claimed in claim 1, wherein a second bearing is fixedly sleeved on both side inner walls of the second U-shaped frame (9), and the second reel (92) is rotatably mounted on the second bearing.

6. The hoisting mechanism with the lever force-increasing structure is characterized in that the two sides of the brake latch (11) are provided with sliding blocks (12), the sides of the first U-shaped frame (8) and the second U-shaped frame (9) close to each other are provided with sliding grooves, and the sliding blocks (12) are in sliding connection with the sliding grooves.