CN216403618U

CN216403618U - Anti-toppling device for semi-portal crane portal

Info

Publication number: CN216403618U
Application number: CN202121642779.9U
Authority: CN
Inventors: 李杨
Original assignee: Yantai Qingyang Hoisting Machinery Co ltd
Current assignee: Yantai Qingyang Hoisting Machinery Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-04-29
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses an anti-dumping device for a gantry of a semi-portal crane, and relates to the field of design of gantry cranes. This semi-portal crane portal anti-overturning device, including the base, the last fixed surface of base is connected with the support frame, the top of support frame and the left end fixed connection of portal, and the below of portal is provided with the telescopic link, and the below of telescopic link is provided with the book shape frame, and the inside of book shape frame is provided with the screw hole, and the second open slot has been seted up to the inside of portal, the bottom and the gyro wheel roll connection of first open slot. This semi-portal crane portal anti-overturning device, through setting up first open slot, second open slot, first fixed axle, gyro wheel, hydraulic means and telescopic link, because gyro wheel motion makes telescopic link, portal and support frame form a triangle-shaped bearing structure, prevents that the portal from empting, through setting up motor, lead screw, screw hole and book shape frame, can pass through the support angle that the motor started the quick change telescopic link according to the quality size of lifting by crane the object, and it is nimble convenient to use.

Description

Anti-toppling device for semi-portal crane portal

Technical Field

The utility model relates to the technical field of gantry crane design, in particular to an anti-dumping device for a gantry of a semi-portal crane.

Background

The gantry crane is a variant of a bridge crane and is also called a gantry crane. The device is mainly used for loading and unloading outdoor goods yards, stockyards and bulk goods. The portal crane has the characteristics of high site utilization rate, large operation range, wide application range, strong universality and the like, and can be widely used in port goods yards, the metal structure of the portal crane is like a portal frame, two support legs are installed under a bearing girder, the portal crane can directly walk on a track on the ground, the two ends of the girder can be provided with the overhanging cantilever beams, some portal cranes only have the support leg on one side, the other side of the portal crane runs on a factory building or a trestle, and the portal crane is called as a semi-portal crane.

The existing semi-portal crane can cause toppling easily if a lifted object is too heavy during working, so that the device can be damaged, and workers can be easily injured and killed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an anti-dumping device for a portal of a semi-portal crane, which solves the problems of casualties and property loss caused by the fact that a heavy object lifted by the portal is easy to dump.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a semi-portal crane portal anti-overturning device, includes the base, the last fixed surface of base is connected with the support frame, the top of support frame and the left end fixed connection of portal, the below of portal is provided with the telescopic link, the below of telescopic link is provided with the book shape frame, the inside of book shape frame is provided with the screw hole.

Further, a first open slot has been seted up on the portal, a second open slot has been seted up to the inside of portal, the bottom and the gyro wheel roll connection of first open slot, gyro wheel and first fixed axle fixed connection, the both ends and the second open slot roll connection of first fixed axle, the one end roll connection of first fixed axle and fixed plate, fixed plate and first connecting plate fixed connection, fixed mounting has hydraulic means on the portal, hydraulic means and first connecting plate fixed connection.

Further, the other end of the fixed plate is fixedly connected with the upper surface of the second connecting plate, the lower surface of the second connecting plate is fixedly connected with the fixed block, a threaded hole is formed in the fixed block, the fixed block is in threaded connection with the screw rod, the screw rod is in threaded connection with the limiting nut, the two ends of the screw rod are in threaded connection with the U-shaped frame, and the U-shaped frame is fixedly connected with the top of the telescopic rod.

Further, the last fixed surface of book shape frame is connected with the connecting block, connecting block and second fixed axle fixed connection, the bottom and the second fixed axle of telescopic link rotate to be connected, a side fixedly connected with motor of base, the rotor of motor and the one end fixed connection of lead screw, the lead screw rotates with the base to be connected, lead screw and screw hole threaded connection, the bottom fixedly connected with baffle of book shape frame, the baffle rotates with the pulley with the third fixed axle to be connected, the bottom of pulley flushes with the lower surface of base.

Furthermore, the middle part of the first opening groove is communicated with the second opening groove.

Furthermore, the number of the limiting nuts is two, and the two limiting nuts are respectively located on two sides of the fixing block.

(III) advantageous effects

The utility model provides an anti-dumping device for a portal frame of a semi-portal crane. The method has the following beneficial effects:

1. this semi-portal crane portal anti-overturning device through setting up first open slot, second open slot, first fixed axle, gyro wheel, hydraulic means and telescopic link, has not only improved bearing capacity with the device installation on the fixed block when lifting by crane the heavy object, because gyro wheel motion makes telescopic link, portal and support frame form a triangle-shaped bearing structure moreover, prevents that the portal from empting.

2. This semi-portal crane portal anti-overturning device through setting up motor, lead screw, screw hole and book shape frame, can pass through the support angle that the motor started the quick change telescopic link according to the quality size of lifting by crane the object, and it is nimble convenient to use, also plays the supporting role simultaneously, constitutes the bearing structure of zigzag by the bottom plate of book shape frame, telescopic link and portal, makes and prevents empting the ability better.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the mechanism A of FIG. 1 according to the present invention;

FIG. 3 is a schematic cross-sectional view of the folding frame of the present invention;

FIG. 4 is a schematic bottom view of the door frame of the present invention;

FIG. 5 is a schematic structural view of the mechanism B of FIG. 4 according to the present invention;

fig. 6 is a schematic sectional structure view of the opening slot of the portal frame.

In the figure: 1. a base; 2. a motor; 3. a support frame; 4. a gantry; 5. a hydraulic device; 6. a first open slot; 7. a second open slot; 8. a first fixed shaft; 9. a roller; 10. a fixing plate; 11. a first connecting plate; 12. a second connecting plate; 13. a fixed block; 14. a screw; 15. a limit nut; 16. a U-shaped frame; 17. a telescopic rod; 18. connecting blocks; 19. a second fixed shaft; 20. a folding frame; 21. a threaded hole; 22. a screw rod; 23. a baffle plate; 24. a third fixed shaft; 25. a pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides an anti-toppling device for a portal frame of a semi-portal crane, which comprises a base 1, wherein the upper surface of the base 1 is fixedly connected with a support frame 3, the top of the support frame 3 is fixedly connected with the left end of the portal frame 4, a telescopic rod 17 is arranged below the portal frame 4, a folded frame 20 is arranged below the telescopic rod 17, a threaded hole 21 is formed in the folded frame 20, a first open slot 6 is formed in the portal frame 4, a second open slot 7 is formed in the portal frame 4, the middle part of the first open slot 6 is communicated with the second open slot 7, the bottom of the first open slot 6 is in rolling connection with a roller 9, the roller 9 is fixedly connected with a first fixed shaft 8, two ends of the first fixed shaft 8 are in rolling connection with the second open slot 7, the first fixed shaft 8 is in rolling connection with one end of a fixed plate 10, the fixed plate 10 is fixedly connected with a first connecting plate 11, the gantry 4 is fixedly provided with a hydraulic device 5, and the hydraulic device 5 is fixedly connected with the first connecting plate 11.

The other end of the fixing plate 10 is fixedly connected with the upper surface of the second connecting plate 12, the lower surface of the second connecting plate 12 is fixedly connected with a fixing block 13, a threaded hole is formed in the fixing block 13, the fixing block 13 is in threaded connection with a screw 14, the screw 14 is in threaded connection with a limit nut 15, the limit nuts 15 are two, the two limit nuts 15 are respectively located on two sides of the fixing block 13, two ends of the screw 14 are in threaded connection with a U-shaped frame 16, and the U-shaped frame 16 is fixedly connected with the top of the telescopic rod 17.

The upper surface of the folding frame 20 is fixedly connected with a connecting block 18, the connecting block 18 is fixedly connected with a second fixed shaft 19, the bottom of a telescopic rod 17 is rotatably connected with the second fixed shaft 19, one side surface of a base 1 is fixedly connected with a motor 2, a rotor of the motor 2 is fixedly connected with one end of a lead screw 22, the lead screw 22 is rotatably connected with the base 1, the lead screw 22 is in threaded connection with a threaded hole 21, the bottom of the folding frame 20 is fixedly connected with a baffle 23, the baffle 23 and a third fixed shaft 24 are rotatably connected with a pulley 25, the bottom of the pulley 25 is flush with the lower surface of the base 1, when in use, the telescopic rod 17 and a fixed block 13 are mutually related through a screw 14, a hydraulic device 5 extends to drive a first connecting plate 11, the first connecting plate 11 drives a fixed plate 10, the fixed plate 10 drives a first fixed shaft 8, the first fixed shaft 8 rolls in a second open slot 7 to drive a roller 9, and the fixed plate 10 drives a second connecting plate 12, the second connecting plate 12 drives the fixing block 13, the fixing block 13 drives the screw 14, the screw 14 drives the U-shaped frame 16, and the U-shaped frame 16 drives the telescopic rod 17 to extend to form a triangular supporting structure.

The working principle is as follows: when the heavy object needs to be lifted, the fixed block 13 is connected with the limiting nut 15 by the screw 14, the telescopic length of the hydraulic device 5 is controlled according to the mass of the lifted heavy object, the hydraulic device 5 extends to drive the first connecting plate 11, the first connecting plate 11 drives the fixing plate 10, the fixing plate 10 drives the first fixing shaft 8, the first fixing shaft 8 rolls in the second opening groove 7 to drive the roller 9, meanwhile, the fixing plate 10 drives the second connecting plate 12, the second connecting plate 12 drives the fixing block 13, the fixing block 13 drives the screw 14, the screw 14 drives the U-shaped frame 16, the U-shaped frame 16 drives the telescopic rod 17, the motor 2 can not be started under the condition that the lifting weight material amount is not too large to be close to the critical point, at the moment, the telescopic rod 17 is elongated along with the movement of the U-shaped frame 16, when the amount of the hoisting materials is too large, the motor 2 is started, the motor 2 drives the lead screw 22, and the lead screw 22 drives the folding frame 20 to move through the threaded hole 21 to increase the bearing capacity.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a semi-portal crane portal anti-overturning device, includes base (1), its characterized in that: the upper surface fixed connection of base (1) has support frame (3), the top of support frame (3) and the left end fixed connection of portal (4), the below of portal (4) is provided with telescopic link (17), the below of telescopic link (17) is provided with book shape frame (20), the inside of book shape frame (20) is provided with screw hole (21).

2. The anti-tipping device for the portal frame of the semi-portal crane according to claim 1, wherein: first open slot (6) have been seted up on portal (4), second open slot (7) have been seted up to the inside of portal (4), the bottom and gyro wheel (9) roll connection of first open slot (6), gyro wheel (9) and first fixed axle (8) fixed connection, the both ends and second open slot (7) roll connection of first fixed axle (8), the one end roll connection of first fixed axle (8) and fixed plate (10), fixed plate (10) and first connecting plate (11) fixed connection, fixed mounting has hydraulic means (5) on portal (4), hydraulic means (5) and first connecting plate (11) fixed connection.

3. The anti-tipping device for the portal frame of the semi-portal crane according to claim 2, wherein: the other end of fixed plate (10) is connected with the last fixed surface of second connecting plate (12), the lower fixed surface of second connecting plate (12) is connected with fixed block (13), the inside screw hole that offers of fixed block (13), fixed block (13) and screw rod (14) threaded connection, screw rod (14) and stop nut (15) threaded connection, the both ends and U-shaped frame (16) threaded connection of screw rod (14), the top fixed connection of U-shaped frame (16) and telescopic link (17).

4. The anti-tipping device for the portal frame of the semi-portal crane according to claim 3, wherein: roll over last fixed surface of shape frame (20) and be connected with connecting block (18), connecting block (18) and second fixed axle (19) fixed connection, the bottom and second fixed axle (19) of telescopic link (17) rotate to be connected, a side fixedly connected with motor (2) of base (1), the rotor of motor (2) and the one end fixed connection of lead screw (22), lead screw (22) rotate with base (1) to be connected, lead screw (22) and screw hole (21) threaded connection, roll over the bottom fixedly connected with baffle (23) of shape frame (20), baffle (23) rotate with third fixed axle (24) and pulley (25) to be connected, the bottom of pulley (25) flushes with the lower surface of base (1).

5. The anti-tipping device for the portal frame of the semi-portal crane according to claim 2, wherein: the middle part of the first opening groove (6) is communicated with the second opening groove (7).

6. The anti-tipping device for the portal frame of the semi-portal crane according to claim 3, wherein: the number of the limiting nuts (15) is two, and the two limiting nuts (15) are respectively positioned on two sides of the fixing block (13).