CN212127317U - a gantry crane - Google Patents

Abstract

The utility model provides a gantry crane, including the back timber, the stand, the support column, rotatory axle sleeve, first crossbeam, the second crossbeam, tilting mechanism and two bottom plates, the back timber level sets up, the one end of the rotatory axle sleeve of one end fixed connection of back timber, the one end of stand is connected to the other end detachably of back timber, be equipped with electric block between rotatory axle sleeve and the stand, electric block is used for hoisting the heavy object, the one end of the one end rotationally joint support post of back timber is kept away from to the rotatory axle sleeve, rotatory axle sleeve is used for driving the back timber and is rotatory for the rotation center along rotatory, all be equipped with tilting mechanism on first crossbeam and the second crossbeam, tilting mechanism is used for respectively with two bottom plates along tilting mechanism rotatory and the level is placed side by side for the center, two bottom plates are used for the level: transportation is not stable enough and cannot be adapted to a variety of scenarios.

Description

a gantry crane

technical field

The utility model belongs to the field of cranes, in particular to a gantry crane.

Background technique

Gantry cranes (also known as gantry cranes) are bridge-type cranes in which the bridge is supported on the ground track by the outriggers on both sides. Structurally, it consists of a gantry, a cart running mechanism, a hoisting trolley and electrical parts. Some gantry cranes only have outriggers on one side, and the other side is supported on the workshop or trestle, which is called a semi-gantry crane. The gantry crane is composed of the upper bridge frame of the gantry (including the main beam and the end beam), the outriggers, the lower beam and other parts. The small gantry crane is a small and lightweight gantry crane. It is used to hoist heavy objects through electric hoists. Some equipment or heavy objects are hoisted in the factory. The existing small gantry cranes are usually equipped with universal wheels at the bottom. After hoisting the heavy objects, the heavy objects are directly suspended and transported. Due to the inertial force of the heavy objects during transportation It is easy to swing down, and the electric hoist has been hoisting suspended heavy objects, which has a certain impact on the durability of the electric hoist, and for some scenarios where the gantry crane is not easy to pass (such as placing equipment on the assembly line), other external force equipment is required to For auxiliary hoisting, there are technical problems that the transportation is not stable enough and cannot be applied to various scenarios.

Utility model content

The purpose of the utility model is to provide a gantry crane, which is used to solve the technical problems existing in the prior art, such as: the transportation is not stable enough and cannot be applied to various scenarios.

For realizing the above-mentioned purpose, the technical scheme that the utility model adopts is:

A gantry crane includes a top beam, a vertical column, a support column, a rotating shaft sleeve, a first beam, a second beam, a turning mechanism and two bottom plates, the top beam is an I-beam, and the top beam is horizontally arranged, One end of the top beam is fixedly connected to one end of the rotating shaft sleeve, the other end of the top beam is detachably connected to one end of the vertical column, the rotating shaft sleeve and the vertical column are arranged vertically and side by side, the said An electric hoist is arranged between the rotating shaft sleeve and the upright column, the electric hoist is arranged below the top beam and is connected to the top beam, the electric hoist is used for hoisting heavy objects, and the rotating shaft sleeve is far away from the One end of the top beam is rotatably connected to one end of the support column. For the second beam, the rotating shaft sleeve and the support column are arranged concentrically, the end of the column away from the top beam is fixedly connected to the first beam, and the first beam and the column are in a "T" shape. , the second beam and the support column are in a "T"-shaped structure, the two "T"-shaped structures are parallel to each other, the first beam and the second beam are provided with the flip mechanism, The turning mechanism is used to rotate the two bottom plates along the turning mechanism as the center and place them horizontally side by side. Connecting the upright column and the support column, there is a gap between the two bottom plates, the gap is used for the electric hoist to lift or lower the heavy object, the first beam, the second beam and the The bottoms of the two base plates are fixedly connected with a universal wheel, which is used to move the whole device. When it is necessary to lift a heavy object, hang the hook of the electric hoist on the heavy object, and then lift the heavy object, The heavy objects pass through the gap between the two bottom plates, and the two bottom plates will not block the heavy objects. After lifting the heavy objects, if the heavy objects need to be moved, the relevant personnel can directly flip the two bottom plates down through the flipping mechanism. At this time, the two bottom plates are connected horizontally side by side, and then the heavy objects can be placed on the two bottom plates through the electric hoist, and then the whole device can be pushed through the universal wheel to achieve the purpose of moving the heavy objects. Through the rotatable connection between the rotating shaft sleeve and the supporting column, the top beam, the electric hoist and the heavy object can be rotated to the target position together, which solves the inconvenient installation or placement of the door-type structure in the prior art, and achieves the application of many beneficial effects of the scene.

Further, the turning mechanism includes a mounting seat, a rotating shaft and two connecting rods, the mounting seat is provided with a through hole, the rotating shaft is rotatably inserted into the through hole, and two ends of the rotating shaft are rotatably inserted into the through hole. One ends of the two connecting rods are respectively fixedly connected, and the other ends of the two connecting rods are fixedly connected to one of the bottom plates, and the flipping mechanisms on the different sides of the first beam and the second beam are fixed. The mounting bases are respectively fixedly connected to the first beam and the second beam, and through two connecting rods fixedly connected to the bottom plate, the rotating shaft rotates together with the bottom plate when the bottom plate is turned over, so that the bottom plate can be rotated.

Further, the supporting column and the rotating shaft sleeve are both cylindrical structures, the bottom of the rotating shaft sleeve is provided with a cavity with an opening, the opening is arranged vertically downward, and one end of the supporting column is inserted into the bottom of the rotating shaft sleeve. In the cavity, the end of the support column inserted into the cavity is provided with a bearing, the inner steel ring of the bearing is fixedly connected to the side surface of the support column, and the outer steel ring of the bearing is fixedly connected to the hollow of the rotating bushing. On the inner wall of the cavity, the bearing is used to rotatably connect the support column and the rotating sleeve, and the functions of the rotating top beam, the electric hoist and the heavy object can be realized by the rotating sleeve rotating on the bearing.

Further, it also includes a first mounting block, a second mounting block and a latch, the bottom of the first mounting block is fixedly connected to the end of the column close to the top beam, and the top of the second mounting block is fixedly connected to the top beam Near one end of the upright column, the first mounting block and the second mounting block are in contact. The first mounting block and the second mounting block are both provided with a number of through holes of the same size, and the through holes are vertical straightly arranged, the plug is slidably inserted in the through hole and penetrates through the first mounting block and the second mounting block, when one end of the top beam rests on the upright, the first mounting block and the second mounting block The mounting blocks are in surface-to-surface contact, and the bolt penetrates through the two to prevent rotation. When the above-mentioned rotating shaft sleeve needs to be rotated, the bolt can be removed, and the operation is simple and convenient.

Further, it also includes a fixing seat and two fixing rods, any one side of the bottom plate away from the turning mechanism is fixedly connected to the two fixing seats, the two fixing seats are arranged side by side, the upright column, the The support column and the fixing seat are all provided with through holes adapted to the fixing rod, and any one of the fixing rods can be slidably inserted into the column and the two fixing seats on the same side. In the through hole, the other fixed rod is slidably inserted into the through hole of the support column and the two fixed seats on the same side thereof, and the vertical column and the support column are both arranged on the same side as the through hole. Between the two fixing seats, one end of the fixing rod is fixedly connected with a stopper, and the other end of the fixing rod is threadedly connected with a nut, and both the stopper and the nut are used to prevent the fixing rod from sliding. Out of the through hole, when the two bottom plates rest on the upright column and the supporting column, one fixing rod penetrates the fixed seat and the upright column of the same bottom plate, and the other fixing rod penetrates the fixed seat and the supporting column of the other bottom plate, and is fixed. The two ends of the rod are respectively provided with a stopper and a nut to prevent it from falling off. The fixing rod plays the role of fixing the bottom plate. When the bottom plate needs to be turned over, just remove the nut and slide out the fixing rod.

Further, the first beam, the second beam and the two bottom plates are all provided with two through holes adapted to the fixing rods, the through holes are arranged concentrically, and the through holes are used for fixing The rod passes through the first beam, the second beam and the two bottom plates. When the rotating bushing drives the top beam to rotate, the two fixing rods are respectively inserted into the two through holes, in order to To balance the whole device, insert the two fixing rods into the two through holes. At this time, the upright column, the support column and the two bottom plates form a whole through the fixing rods. The fixing rods inserted in the through holes are equivalent to the left The side acts as a counterweight. At this time, the center of gravity of the whole device is re-balanced. Therefore, in order to balance the center of gravity, the base plate and the column should be made of denser materials to play the function of counterweight. When leaning on the upright column and the support column, it plays the role of fixing the bottom plate, and the bottom plate is turned into a horizontal side and then inserted into the above-mentioned through hole, which plays a multi-purpose function and prevents the accidental loss of the fixed rod.

Further, there are eight universal wheels, and two universal wheels are fixedly connected to the first beam, the second beam and the bottom of the two bottom plates and are arranged horizontally side by side. When the two fixed rods are inserted into the first beam, the second beam and the two bottom plates, the eight universal wheels are on the same horizontal plane and are in contact with the ground. During the process, in order to ensure the stability of the movement, the fixed rod needs to be inserted into the through holes of the first beam, the second beam and the two bottom plates. At this time, the eight universal wheels are evenly stressed at the bottom of the whole device, which ensures for the purpose of moving stability.

Further, it also includes a reinforcing rib, one end of the reinforcing rib is fixedly connected to the top beam, the other end of the reinforcing rib is fixedly connected to the rotating shaft sleeve, the reinforcing rib is an I-beam, and the reinforcing rib acts to stabilize the top beam. effect.

The beneficial effects of the present utility model are:

(1) The gantry crane is provided with two bottom plates, and through the two bottom plates that can be turned over, heavy objects can be placed and transported when the two bottom plates are turned horizontally side by side, achieving the beneficial effect of stable transportation.

(2) The gantry crane is provided with a rotating shaft sleeve and a support column, and the rotating shaft sleeve is rotatably connected with the support column, so that the top beam, electric hoist and heavy objects can be rotated to the target position together, which is suitable for many beneficial effects of the scene.

(3) The gantry crane is provided with two bottom plates, a rotating shaft sleeve and a support column. The two bottom plates play a role in stabilizing the transportation function. Rotate to the target position at the same time, without borrowing other external equipment, and achieve the beneficial effect of convenient production and cost saving.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a gantry crane of the present invention.

Fig. 2 is a schematic diagram of the state where two bottom plates of a gantry crane of the present invention are placed horizontally side by side.

Fig. 3 is a schematic diagram of the rotating state of the rotating shaft sleeve of a gantry crane of the present invention.

FIG. 4 is a schematic view of the overturned front view of a gantry crane of the present utility model.

FIG. 5 is a schematic cross-sectional view of a turning mechanism of a gantry crane of the present invention.

6 is a schematic diagram of the connection relationship between the rotating shaft sleeve and the support column of a gantry crane of the present invention.

Fig. 7 is a schematic diagram of the connection relationship between the fixed rods when two bottom plates of a gantry crane of the present invention are placed horizontally.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings 1-7 of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

A gantry crane, including a top beam 1, a vertical column 2, a support column 4, a rotating shaft sleeve 3, a first beam 6, a second beam 7, a turning mechanism and two bottom plates 8, the top beam 1 is I-beam , the top beam 1 is arranged horizontally, one end of the top beam 1 is fixedly connected to one end of the rotating shaft sleeve 3, the other end of the top beam 1 is detachably connected to one end of the column 2, and the rotating shaft The sleeve 3 and the column 2 are arranged vertically and side by side, and an electric hoist 5 is arranged between the rotating shaft sleeve 3 and the column 2, and the electric hoist 5 is arranged under the top beam 1 and is connected to the top Beam 1 is connected, the electric hoist 5 is used for hoisting heavy objects, the end of the rotating bushing 3 away from the top beam 1 is rotatably connected to one end of the support column 4, and the rotating bushing 3 is used for The top beam 1 is driven to rotate along the rotating shaft sleeve 3 as the center of rotation, the other end of the support column 4 is fixedly connected to the second beam 7, and the rotating shaft sleeve 3 and the support column 4 are arranged concentrically, The end of the column 2 away from the top beam 1 is fixedly connected to the first beam 6, the first beam 6 and the column 2 are in a "T" shape, and the second beam 7 and the support column 4 is a "T"-shaped structure, the two "T"-shaped structures are parallel to each other, and the first beam 6 and the second beam 7 are provided with the flipping mechanism, which is used to respectively The two bottom plates 8 rotate around the turning mechanism and are placed horizontally side by side, the two bottom plates 8 are used to carry the heavy objects when placed horizontally side by side, and the two bottom plates 8 are respectively detachably connected to the uprights 2 And the support column 4, there is a gap between the two bottom plates 8, the gap is used for the electric hoist 5 to lift or lower the weight, the first beam 6, the second beam 7 and The bottoms of the two base plates 8 are fixedly connected with a universal wheel 18, and the universal wheel 18 is used to move the entire device;

The top beam 1 forms a portal structure on both sides of the column 2 and the rotating shaft sleeve 3, and two bottom plates 8 that can be folded and turned are provided on both sides of the portal structure, and the two bottom plates 8 are respectively against the column 2 and the support column 4. When the heavy object needs to be lifted, hang the hook of the electric hoist 5 on the heavy object, then lift the heavy object, the heavy object passes through the gap between the two bottom plates 8, and the two bottom plates 8 It will not block the heavy objects. After lifting the heavy objects, if the heavy objects need to be moved, the relevant personnel can directly turn the two bottom plates 8 down through the flipping mechanism. At this time, the two two bottom plates 8 are connected horizontally side by side. , and then place the heavy objects on the two bottom plates 8 through the electric hoist 5, and then push the whole device through the universal wheel 18 to achieve the purpose of moving the heavy objects. Compared with the prior art, an additional conveying trolley is required. To move the heavy objects, the device passes the two bottom plates 8 that can be turned over. When the two bottom plates 8 are turned horizontally side by side, the heavy objects can be placed and transported, achieving the beneficial effect of stable transportation function. In addition, due to the characteristics of the door structure, The two bottom plates 8 are usually in a state of leaning on the upright column 2 and the supporting column 4. When it is necessary to lift the heavy objects above them on some equipment, the top beam 1 can be slid to the top of the relevant equipment through the universal wheel 18 for lifting. , after the above-mentioned moving the heavy object to the destination, the electric hoist 5 lifts the heavy object again, and then the two bottom plates 8 are turned over and folded by the turning mechanism and parked on the column 2 and the supporting column 4, and then the whole device is pushed again. At this time, the two bottom plates 8 rest on the upright column 2 and the support column 4, so the hoisted heavy objects can be pushed above the relevant equipment and then lowered (for example, two electrical control cabinets are stacked in a factory building).

To further optimize this solution, after the above-mentioned moving heavy objects to the destination, if there is a situation where the portal structure cannot pass (for example, placing equipment on the assembly line), since the top beam 1 side is detachably connected with the upright column 2, it is related. Personnel can disassemble one side of the top beam 1 and then rotate the rotating shaft sleeve 3 to rotate the top beam 1, the electric hoist 5 and the heavy object to the target position together, and then lower the heavy object. This solution is a good solution. In order to deal with some inconvenient installation or placement scenarios in the prior art, on the contrary, if it is necessary to lift heavy objects in scenarios where the portal structure cannot pass through, this solution will also be applicable. Rotatingly connected, the top beam 1, the electric hoist 5 and the heavy object can be rotated to the target position together, which solves the inconvenient installation or placement of the door-type structure in the prior art, and achieves the beneficial effect of being suitable for various scenarios. In addition, the electric hoist 5 and its connection method with the top beam 1 are the existing conventional technology, and the installation and connection method of the electric hoist can be realized by those skilled in the art.

Further, the turning mechanism includes a mounting seat 12, a rotating shaft 9 and two connecting rods 11, the mounting seat 12 is provided with a through hole, the rotating shaft 9 is rotatably inserted into the through hole, and the Both ends of the rotating shaft 9 are fixedly connected to one end of the two connecting rods 11 respectively, and the other ends of the two connecting rods 11 are fixedly connected to one of the bottom plate 8 , the first beam 6 and the second beam The mounting bases 12 in the flip mechanism on different sides on the 7 are respectively fixedly connected to the first beam 6 and the second beam 7 . The rotating shaft 9 rotates together with it to achieve the purpose of rotating the bottom plate 8. In addition, there is a certain gap between the bottom plate 8 and the upright column 2 and another bottom plate 8 and the support column 4. This gap is used for the two bottom plates 8 to be turned over normally. , to prevent the bottom plate 8 from coming into contact with the upright column 2 or the support column 4 when it is turned over.

Further, the support column 4 and the rotating shaft sleeve 3 are both cylindrical structures, the bottom of the rotating shaft sleeve 3 is provided with a cavity with an opening, and the opening is arranged vertically downward, and the support column 4 One end is inserted into the cavity, the end of the support column 4 inserted into the cavity is provided with a bearing 19, the inner steel ring of the bearing 19 is fixedly connected to the side of the support column 4, and the outer steel ring of the bearing 19 The inner wall of the cavity of the rotating sleeve 3 is fixedly connected, and the bearing 19 is used to rotatably connect the support column 4 and the rotating sleeve 3. The bearing 19 is the existing conventional technology, and its installation and connection method is the technology Persons in the field can fully realize that the present utility model does not involve the transformation of the bearing 19, so it will not be repeated here. The functions of rotating top beam 1, electric hoist 5 and heavy objects are realized.

Further, it also includes a first mounting block 13 , a second mounting block 14 and a latch 15 , the bottom of the first mounting block 13 is fixedly connected to the end of the column 2 close to the top beam 1 , and the second mounting block 14 The top is fixedly connected to one end of the top beam 1 close to the upright column 2 , the first mounting block 13 and the second mounting block 14 are in contact, and both the first mounting block 13 and the second mounting block 14 are provided There are several through holes of the same size, the through holes are arranged vertically, and the plug 15 is slidably inserted in the through holes and penetrates through the first mounting block 13 and the second mounting block 14 . When one end of the top beam 1 rests on the upright column 2, the first mounting block 13 and the second mounting block 14 are in surface-to-surface contact, and the pin 15 penetrates through the two to prevent rotation. The lower pin 15 is enough, and the operation is simple and convenient.

Further, it also includes a fixing base 16 and two fixing rods 10, and any one side of the bottom plate 8 away from the turning mechanism is fixedly connected to the two fixing bases 16, and the two fixing bases 16 are arranged side by side, The column 2 , the support column 4 and the fixing seat 16 are all provided with through holes adapted to the fixing rod 10 , and any one of the fixing rods 10 can be slidably inserted into the column 2 and the fixing base 16 . In the through holes of the two fixing bases 16 on the same side, the other fixing rod 10 is slidably inserted in the support column 4 and the through holes of the two fixing bases 16 on the same side, The upright column 2 and the support column 4 are both disposed between the two fixing seats 16 on the same side of the column. One end of the fixing rod 10 is fixedly connected with a stopper, and the other end of the fixing rod 10 is threadedly connected with a screw. The stopper and the nut are both used to prevent the fixing rod 10 from sliding out of the through hole. When the two bottom plates 8 rest on the upright column 2 and the supporting column 4, a fixing rod 10 passes through the same The fixing seat 16 and the column 2 of one base plate 8, the other fixing rod 10 penetrates the fixing base 16 and the supporting column 4 of the other base plate 8, and the two ends of the fixing rod 10 are respectively provided with a stopper and a nut for preventing and fixing. The rod 10 plays the role of fixing the bottom plate 8 . When the bottom plate 8 needs to be turned over, just remove the nut and slide out the fixing rod 10 .

Further, the first beam 6 , the second beam 7 and the two bottom plates 8 are all provided with two through holes adapted to the fixing rod 10 , the through holes are arranged concentrically, and the through holes The holes are used for fixing rods 10 to pass through the first beam 6 , the second beam 7 and the two bottom plates 8 . When the rotating bushing 3 drives the top beam 1 to rotate, the two fixing rods 10 are respectively Inserted into the two through holes, during the above-mentioned process of rotating the rotating sleeve 3, as shown in Figure 3, when the top beam 1 is rotated 180 degrees, the center of gravity of the entire device will lean against one end of the heavy object, in order to make the The whole device is balanced, and the two fixing rods 10 are inserted into the two through holes. At this time, the column 2, the supporting column 4 and the two bottom plates 8 are formed into a whole by the fixing rod 10, and the fixing rod 10 is inserted into the through hole. The left side of the whole device acts as a counterweight. At this time, the center of gravity of the whole device is re-balanced. Therefore, in order to balance the center of gravity, the base plate 8 and the column 2 should be made of denser materials to play the function of counterweight. , In addition, the fixing rod 10 plays the role of fixing the bottom plate 8 when the bottom plate 8 leans against the upright column 2 and the supporting column 4, and the bottom plate 8 is turned into a horizontal side and then inserted into the above-mentioned through hole, which plays a multi-purpose function and prevents the The effect of fixing the accidental loss of the rod 10.

Further, there are eight universal wheels 18 , and two of the universal wheels 18 are fixedly connected to the bottoms of the first beam 6 , the second beam 7 and the two bottom plates 8 and are horizontally side by side. Setting, when the two fixed rods 10 are inserted into the first beam 6, the second beam 7 and the two bottom plates 8, the eight universal wheels 18 are on the same horizontal plane and are Ground contact, in the process of moving the heavy object, in order to ensure the stability of the movement, the fixed rod 10 needs to be inserted in the through holes of the first beam 6, the second beam 7 and the two bottom plates 8. At this time, 80,000 The directional wheel 18 is uniformly stressed at the bottom of the entire device, so as to ensure the stability of the movement. In addition, the universal wheel 18 is an existing conventional technology, and its installation and connection method can be fully realized by those skilled in the art. The new model does not involve the modification of the electric hoist 5, so it will not be repeated.

Further, a reinforcing rib 17 is also included. One end of the reinforcing rib 17 is fixedly connected to the top beam 1, and the other end of the reinforcing rib 17 is fixedly connected to the rotating shaft sleeve 3. The reinforcing rib 17 is an I-beam. The ribs 17 play the role of stabilizing the top beam 1 .

In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "horizontal", "top", "bottom", "front", "rear" and "left" , "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only In order to facilitate the description of the present invention, it is not indicated or implied that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Claims (8)

1. A gantry crane, characterized in that it comprises a top beam (1), a vertical column (2), a support column (4), a rotating shaft sleeve (3), a first beam (6), a second beam (7) , a turning mechanism and two bottom plates (8), the top beam (1) is an I-beam, the top beam (1) is arranged horizontally, and one end of the top beam (1) is fixedly connected to the rotating shaft sleeve ( 3) one end, the other end of the top beam (1) is detachably connected to one end of the column (2), the rotating bushing (3) and the column (2) are arranged vertically and side by side, so An electric hoist (5) is arranged between the rotating shaft sleeve (3) and the upright column (2), and the electric hoist (5) is arranged below the top beam (1) and is connected to the top beam (1) The electric hoist (5) is used for hoisting heavy objects, and the end of the rotating shaft sleeve (3) away from the top beam (1) is rotatably connected to one end of the support column (4). The rotating shaft sleeve (3) is used to drive the top beam (1) to rotate along the rotating shaft sleeve (3) as the center of rotation, and the other end of the support column (4) is fixedly connected to the second beam (7) , the rotating shaft sleeve (3) is arranged concentrically with the support column (4), the end of the column (2) away from the top beam (1) is fixedly connected to the first beam (6), the first beam (6) A beam (6) and the upright column (2) are in a "T"-shaped structure, the second beam (7) and the support column (4) are in a "T"-shaped structure, and the two "T"-shaped The structures are parallel to each other, the first beam (6) and the second beam (7) are both provided with the flipping mechanism, and the flipping mechanism is used to respectively turn the two bottom plates (8) along the flipping mechanism into The center rotates and is placed horizontally side by side, the two bottom plates (8) are used to carry the heavy objects when placed horizontally side by side, and the two bottom plates (8) are respectively detachably connected to the column (2) and the support Column (4), there is a gap between the two bottom plates (8), the gap is used for the electric hoist (5) to lift or lower the heavy object, the first beam (6), the second The two beams (7) and the bottoms of the two bottom plates (8) are fixedly connected with a universal wheel (18), and the universal wheel (18) is used to move the entire device; The turning mechanism includes a mounting seat (12), a rotating shaft (9) and two connecting rods (11), the mounting seat (12) is provided with a through hole, and the rotating shaft (9) is rotatably inserted in the mounting seat (12). In the through hole, the two ends of the rotating shaft (9) are respectively fixedly connected to one end of the two connecting rods (11), and the other ends of the two connecting rods (11) are fixedly connected to a bottom plate ( 8), the mounting seats (12) in the flip mechanism on different sides of the first beam (6) and the second beam (7) are respectively fixedly connected to the first beam (6) and all Describe the second beam (7). 2 . The gantry crane according to claim 1 , wherein the support column ( 4 ) and the rotating shaft sleeve ( 3 ) are both cylindrical structures, and the bottom of the rotating shaft sleeve ( 3 ) is at the bottom. A cavity with an opening is provided, the opening is arranged vertically downward, one end of the support column (4) is inserted into the cavity, and the end of the support column (4) inserted into the cavity is provided with a bearing (19), the inner steel ring of the bearing (19) is fixedly connected to the side surface of the support column (4), and the outer steel ring of the bearing (19) is fixedly connected to the inner wall of the cavity of the rotating shaft sleeve (3), so The bearing (19) is used to rotatably connect the support column (4) and the rotating shaft sleeve (3). 3. A gantry crane according to claim 1, characterized in that further comprising a first installation block (13), a second installation block (14) and a latch (15), the first installation block (13) ) The bottom is fixedly connected to the end of the column (2) close to the top beam (1), and the top of the second mounting block (14) is fixedly connected to the end of the top beam (1) close to the column (2), so The first mounting block (13) and the second mounting block (14) are in abutment, and the first mounting block (13) and the second mounting block (14) are both provided with a number of through holes of the same size, The through hole is arranged in a vertical direction, and the plug (15) is slidably inserted in the through hole and penetrates through the first installation block (13) and the second installation block (14). 4. A gantry crane according to claim 1, characterized in that it further comprises a fixed seat (16) and two fixed rods (10), any one of the bottom plates (8) being away from a part of the turning mechanism The two fixed seats (16) are fixedly connected on both sides, the two fixed seats (16) are arranged side by side, and the three of the upright column (2), the support column (4) and the fixed seat (16) All of them are provided with through holes adapted to the fixing rods (10), and any one of the fixing rods (10) is slidably inserted into the upright column (2) and the two fixing seats (16) on the same side as it. ), the other fixing rod (10) is slidably inserted into the through holes of the support column (4) and the two fixing seats (16) on the same side thereof, and the column ( 2) and the support column (4) are both arranged between the two fixing seats (16) on the same side. 5. A gantry crane according to claim 4, characterized in that, one end of the fixing rod (10) is fixedly connected with a stopper, and the other end of the fixing rod (10) is threadedly connected with a nut, and the Both the block and the nut are used to prevent the fixing rod (10) from sliding out of the through hole. 6. A gantry crane according to claim 4, characterized in that, the first beam (6), the second beam (7) and the two bottom plates (8) are provided with the same Two through holes adapted to the fixing rod (10), the through holes are arranged concentrically, and the through holes are used for the fixing rod (10) to pass through the first beam (6), the second beam ( 7) and the two bottom plates (8), when the rotating shaft sleeve (3) drives the top beam (1) to rotate, the two fixing rods (10) are respectively inserted into the two through holes. 7. A gantry crane according to claim 6, characterized in that there are eight universal wheels (18), the first beam (6), the second beam (7) and the The bottoms of the two base plates (8) are fixedly connected with the two universal wheels (18) and are arranged horizontally side by side. When the two fixing rods (10) are inserted into the first beam (6), the When the second beam (7) and the two bottom plates (8) are located, the eight universal wheels (18) are on the same horizontal plane and are in contact with the ground. 8 . The gantry crane according to claim 1 , further comprising a reinforcing rib ( 17 ), one end of the reinforcing rib ( 17 ) is fixedly connected to the top beam ( 1 ), and the reinforcing rib ( 17) The other end is fixedly connected to the rotating shaft sleeve (3), and the reinforcing rib (17) is an I-beam.

Images