CN114572862A - Double-hoisting-end hoisting tower crane - Google Patents

Abstract

The invention provides a double-hoisting-end hoisting tower crane, and relates to the technical field of hoisting tower cranes. This two hoisting end jack-up tower cranes, the on-line screen storage device comprises a base, the first support body of the last fixed surface of base is connected with, the upper surface of first support body is provided with the top cover, the last fixed surface of top cover is connected with changes the board, the last fixed surface who changes the board is connected with the mount, the side surface fixedly connected with second support body of mount, the inside fixedly connected with gravity mechanism of second support body. Through the gravity mechanism who sets up, utilize first bearing block and the multiplicable second support body weight of second bearing block, when the third support body is when the tower crane article, make the weight between second support body and the third support body comparatively balanced, utilize electric telescopic handle's flexible second bearing block removal of promoting simultaneously, make the inside that the second bearing block can follow first bearing block stretch out, make the weight of second support body concentrate in the below, make the device when carrying out the tower crane to the article, be difficult for appearing unbalance.

Description

Double-end lifting tower crane

technical field

The invention relates to the technical field of hoisting tower cranes, in particular to a double hoisting end hoisting tower crane.

Background technique

Tower cranes are the most commonly used lifting equipment on construction sites, also known as "tower cranes". , concrete, steel pipes and other construction raw materials. The tower crane is an indispensable equipment on the construction site.

The function of the tip of the tower crane is to bear the upper load from the jib pull rope and the balance arm pull rope, and directly transmit it to the tower body structure through the rotary tower, turntable, bearing and other structural components. The top of the self-elevating tower has a truncated cone column type, a forward or backward truncated cone column type, a herringbone frame type and a diagonal support frame type. All upper slewing tower cranes need to be equipped with a counterweight, and its function is to support the counterweight to form a counterbalancing moment that is opposite to the direction of the lifting moment in the function required by the design. In addition to the counterweight, a hoisting mechanism is often installed at its tail. The reason why the hoisting mechanism is placed at the end of the balance arm together with the counterweight is that it can play a part of the counterweight role, and secondly, it increases the distance between the rope drum and the tower tip guide wheel, so as to facilitate the winding of the wire rope and avoid the occurrence of The rope disorder phenomenon. The amount of balance weight is inversely proportional to the length of the balance arm, and there is a certain proportional relationship between the length of the balance arm and the length of the boom. The balance weight is quite considerable. Light tower cranes are generally at least 3-4t, and heavy-duty tower cranes are nearly 30t. Usually, double-end lifting tower cranes are mostly used in large construction sites. Lifting tower cranes are very popular.

However, when the existing double-end hoisting tower crane hoists the object, the weight of the two ends of the frame body is different, and it is easy to cause imbalance and affect the use.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a double-end lifting tower crane, which solves the problem that the black scale generated after burning in the pot is difficult to remove.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a double-end hoisting tower crane includes a base, the upper surface of the base is fixedly connected with a first frame body, and the upper surface of the first frame body is provided with a roof; The upper surface of the top sleeve is fixedly connected with a turning plate, the upper surface of the turning plate is fixedly connected with a fixing frame, the side surface of the fixing frame is fixedly connected with a second frame body, and the second frame body is fixedly connected to the upper surface of the turning plate. A gravity mechanism is fixedly connected inside, the side surface of the fixing frame is located on the right side of the second frame body is fixedly connected with a third frame body, and the front surface of the third frame body is slidably connected with a balance mechanism.

Preferably, the gravity mechanism includes a first load-bearing block, an electric telescopic rod is fixedly connected to the inside of the first load-bearing block, and a second load-bearing block is fixedly connected to the output end of the electric telescopic rod, and the second load-bearing block is connected to the The first bearing block is slidingly connected.

Preferably, the balance mechanism includes a balance plate, and a sliding plate is slidably connected to the front surface of the balance plate.

Preferably, a hydraulic cylinder is fixedly connected to the inside of the top sleeve, and the output end of the hydraulic cylinder is fixedly connected to the first frame body.

Preferably, a rack is fixedly connected to the inside of the third frame body, a gear is meshed and connected to the upper surface of the rack, and a moving plate is provided on the rear surface of the gear.

Preferably, a first step motor is fixedly connected to the upper surface of the moving plate, a winding plate is fixedly connected to the output end of the first step motor, and a steel wire rope is provided on the side surface of the winding plate. One end away from the rewinding plate is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the slide plate, the lower surface of the mounting plate is fixedly connected with a support plate, and a threaded rod is threadedly connected to the inside of the mounting plate, and the threaded rod is close to the One end of the support plate is provided with a pressure plate, and the pressure plate is located above the support plate.

Preferably, a second stepping motor is slidably connected to the rear surface of the third frame body, and the output end of the second stepping motor is connected to the gear through splines.

(3) Beneficial effects

The present invention provides a double-end hoisting tower crane. Has the following beneficial effects:

1. Compared with the existing technology, the weight of the second frame can be increased by using the first load-bearing block and the second load-bearing block through the set gravity mechanism. When the third frame is hanging on the tower, the second frame is The weight of the third frame body is relatively balanced, and at the same time, the extension and contraction of the electric telescopic rod can push the second bearing block to move, so that the second bearing block can protrude from the inside of the first bearing block, so that the weight of the second frame body can be concentrated At the bottom, the device is less likely to be unbalanced when the object is tower-hoisted.

2. Compared with the existing technology, through the set balance mechanism, when the mounting plate is moving, the slide plate can be driven to slide on the surface of the balance plate, so that it can improve the stability of the mounting plate when moving, and effectively prevent the wire rope from The object is shaking when the tower crane is carried out, causing danger.

3. Compared with the existing technology, the object is placed on the surface of the pallet through the installed support plate, threaded rod and pressure plate, and the threaded rod is twisted so that the pressure plate can press the surface of the object, so that the object can be placed on the tower crane. more solid.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the rear view structure schematic diagram of the present invention;

Fig. 3 is the partial structure schematic diagram of the present invention;

FIG. 4 is a schematic structural diagram of the mobile board of the present invention;

5 is a schematic diagram of the internal structure of the first load-bearing block of the present invention;

Fig. 6 is the structural representation of place A in Fig. 1 of the present invention;

7 is a schematic diagram of the internal structure of the third frame of the present invention;

FIG. 8 is a schematic diagram of the structure at B in FIG. 7 of the present invention.

Among them, 1. the base; 2. the first frame body; 3. the gravity mechanism; 301, the first bearing block; 302, the second bearing block; 303, the electric telescopic rod; 4, the second frame body; 5, the turning plate; 6. Fixed frame; 7. Top cover; 8. Third frame body; 9. Balance mechanism; 901, Balance plate; 902, Skateboard; 10, First step motor; 11, Rewinding plate; 12, Steel wire rope; 13 14, the second stepper motor; 15, the moving plate; 16, the hydraulic cylinder; 17, the gear; 18, the threaded rod; 19, the pressure plate;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example:

As shown in Figures 1-8, the embodiment of the present invention provides a double-end lifting tower crane, including a base 1, a first frame body 2 is fixedly connected to the upper surface of the base 1, and a top sleeve is provided on the upper surface of the first frame body 2 7. A hydraulic cylinder 16 is fixedly connected to the inside of the top sleeve 7, and the output end of the hydraulic cylinder 16 is fixedly connected to the first frame body 2. The expansion and contraction of the hydraulic cylinder 16 can push the top sleeve 7 to move up and down, so that the second frame can be moved up and down. The heights of the body 4 and the third frame body 8 are adjusted, the upper surface of the top sleeve 7 is fixedly connected with a turning plate 5, and the fixing frame 6 can drive the second frame body 4 and the third frame body 8 to rotate by controlling the turning plate 5 from the outside. , the upper surface of the turning plate 5 is fixedly connected with a fixing frame 6, the side surface of the fixing frame 6 is fixedly connected with a second frame body 4, and the interior of the second frame body 4 is fixedly connected with a gravity mechanism 3, and the gravity mechanism 3 includes a first load-bearing Block 301, the inside of the first bearing block 301 is fixedly connected with an electric telescopic rod 303, the output end of the electric telescopic rod 303 is fixedly connected with a second bearing block 302, and the second bearing block 302 is slidably connected with the first bearing block 301, using The first load-bearing block 301 and the second load-bearing block 302 can increase the weight of the second frame body 4, so that when the pallet 20 is tower-hoisting the object, the weight between the second frame body 4 and the third frame body 8 is more balanced, At the same time, the extension and retraction of the electric telescopic rod 303 can push the second bearing block 302 to move, so that the second bearing block 302 can protrude from the inside of the first bearing block 301, so that the weight of the second frame body 4 is concentrated below, so that the device When the object is tower crane, it is not easy to appear unbalanced.

By arranging the above structure, the weights of the second frame body 4 and the third frame body 8 can be better balanced, so that the device is less likely to be unbalanced.

The side surface of the fixed frame 6 is located on the right side of the second frame body 4, and the third frame body 8 is slidably connected to the front surface of the third frame body 8 with a balance mechanism 9. The balance mechanism 9 includes a balance plate 901. The front surface of the balance plate 901 A sliding plate 902 is slidably connected. When the pallet 20 is lifting the object, the movement of the mounting plate 21 enables the sliding plate 902 to slide on the surface of the balance plate 901, so that when the object is moving, the wire rope 12 is not easy to shake and cause danger.

By arranging the above structure, the steel wire rope 12 can be effectively prevented from shaking and causing danger when the object is tower-hoisted.

A rack 13 is fixedly connected to the inside of the third frame body 8 , a gear 17 is meshed and connected to the upper surface of the rack 13 , a moving plate 15 is provided on the rear surface of the gear 17 , and a second frame is slidingly connected to the rear surface of the third frame body 8 The stepper motor 14, and the output end of the second stepper motor 14 is connected with the gear 17 through splines, and the second stepper motor 14 is activated to make the gear 17 rotate. When rotating, the moving plate 15 can move on the surface of the third frame body 8, the upper surface of the moving plate 15 is fixedly connected with the first step motor 10, and the output end of the first step motor 10 is fixedly connected with the winding plate 11, The side surface of the coiling plate 11 is provided with a wire rope 12, the first step motor 10 is activated to make the coiling plate 11 rotate to unwind or rewind the wire rope 12, and the end of the wire rope 12 away from the coiling plate 11 is fixedly connected with a mounting plate 21 , and the mounting plate 21 is fixedly connected with the sliding plate 902. Using the fixing of the mounting plate 21 and the sliding plate 902, when the mounting plate 21 moves up and down, the sliding plate 902 can slide up and down on the surface of the balance plate 901. When the moving plate 15 drives the mounting plate 21 left and right When moving, since the balance plate 901 is slidably connected with the outer surface of the third frame body 8, when the mounting plate 21 is moving, the balance plate 901 can slide on the outer surface of the third frame body 8, and the lower surface of the mounting plate 21 is fixedly connected There is a pallet 20, a threaded rod 18 is threaded inside the mounting board 21, and a pressure plate 19 is provided at one end of the threaded rod 18 close to the pallet 20, and the pressure plate 19 is located above the pallet 20, and the wire rope 12 is used for unwinding or rewinding. , make the mounting plate 21 moveable, place the object on the surface of the support plate 20 to hold it, twist the threaded rod 18 to make the pressing plate 19 moveable and press the surface of the object to be fixed, and the wire rope 12 can be fixed by the rotation of the winding plate 11 Rewinding is performed, and through the movement of the moving plate 15, the staff can install the price of the tower crane.

By arranging the above structure, the device is more convenient when the object is tower-hoisted, so that the tower-hoisting efficiency of the object can be improved.

Working principle: start the first step motor 10 so that the rewinding plate 11 can rotate to unwind the wire rope 12, so that the mounting plate 21 can move, and the sliding plate 902 can slide on the surface of the balance plate 901 when the The object is placed on the surface of the support plate 20 to support it, and the threaded rod 18 is twisted to make the pressure plate 19 move to press the surface of the object to be fixed. The block 302 can be protruded from the inside of the first bearing block 301, so that the weight of the second frame body 4 is concentrated below, so that the device is less likely to be unbalanced when the object is tower-hoisted. 12 to rewind, so that the mounting plate 21 can be driven to slide upward, and the second stepper motor 14 is activated, so that the gear 17 can be rotated. The second stepper motor 14 moves inside the third frame body 8 . Since the balance plate 901 is slidably connected to the outer surface of the third frame body 8 , when the moving plate 15 is moving, the balance plate 901 can move on the third frame body 8 . The outer surface of the machine slides, so that it is convenient for the staff to install the objects of the tower crane.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. Two hoisting end jack-up tower cranes, including base (1), its characterized in that: the utility model discloses a support frame, including base (1), the upper surface fixedly connected with of base (1) first support body (2), the upper surface of first support body (2) is provided with top cover (7), the upper surface fixedly connected with of top cover (7) changes board (5), the upper surface fixedly connected with mount (6) of changeing board (5), the side surface fixedly connected with second support body (4) of mount (6), the inside fixedly connected with gravity mechanism (3) of second support body (4), the side surface of mount (6) is located right side fixedly connected with third support body (8) of second support body (4), the front surface sliding connection of third support body (8) has balance mechanism (9).

2. The double-hoisting-end crane tower crane according to claim 1, wherein: gravity mechanism (3) include first bearing block (301), the inside fixedly connected with electric telescopic handle (303) of first bearing block (301), the output fixedly connected with second bearing block (302) of electric telescopic handle (303), and second bearing block (302) and first bearing block (301) sliding connection.

3. The double-hoisting-end crane tower crane according to claim 1, wherein: the balance mechanism (9) comprises a balance plate (901), and a sliding plate (902) is connected to the front surface of the balance plate (901) in a sliding mode.

4. The double-hoisting-end crane tower crane according to claim 1, wherein: the inside fixedly connected with pneumatic cylinder (16) of top cover (7), and the output and first support body (2) fixed connection of pneumatic cylinder (16).

5. The double-hoisting-end crane tower crane according to claim 1, wherein: the inside fixedly connected with rack (13) of third support body (8), the upper surface meshing of rack (13) is connected with gear (17), the rear surface of gear (17) is provided with movable plate (15).

6. The double-hoisting-end crane tower crane according to claim 5, wherein: the upper surface fixedly connected with of movable plate (15) first step motor (10), the output fixedly connected with of first step motor (10) coils board (11), the side surface of coils board (11) is provided with wire rope (12), wire rope (12) are kept away from one end fixedly connected with mounting panel (21) of coils board (11), and mounting panel (21) and slide (902) fixed connection, the lower fixed surface of mounting panel (21) is connected with layer board (20), the internal thread of mounting panel (21) is connected with threaded rod (18), the one end that threaded rod (18) are close to layer board (20) is provided with clamp plate (19), and clamp plate (19) are located the top of layer board (20).

7. The double-hoisting-end crane tower crane according to claim 1, wherein: the rear surface of the third frame body (8) is connected with a second stepping motor (14) in a sliding mode, and the output end of the second stepping motor (14) is connected with the gear (17) through a spline.

Images