CN103896161B - A kind of revolving jib crane - Google Patents

Abstract

The invention discloses a jib crane, which comprises a support column, a jib, an electric crane and a suspension system; Hanging system; the number of swing arms is two, and the two swing arms form a fixedly connected fork structure, and the fork structure is located on the horizontal plane; the two swing arms are respectively provided with guide rail grooves, and the electric trolley slides along the guide rail grooves . The jib crane provided by the present invention can better adapt to the non-linear movement and hoisting work of high-temperature objects; it makes the high-temperature objects more stable and safer in the process of hoisting and jib rotation; further, it can realize the lifting of high-temperature objects Control the state.

Description

jib crane

technical field

The invention relates to the field of cranes, in particular to a jib crane.

Background technique

Cranes are a kind of large-scale machinery widely used in the heavy industry. Among them, the jib crane can rotate the jib around the support column at a large angle, so that it can more flexibly complete various non-linear movements and hoisting tasks. The original gantry crane can only move objects in a straight line.

The jib crane mainly includes a support column, a jib that is rotatably connected to the support column, and an electric trolley that is slidably connected to the jib. The lifting of the object is realized through the suspension system installed on the electric trolley. This kind of jib crane can generally only be used for the lifting of ordinary goods, but in heavy industries such as foundry and smelting, it often involves non-linear movement and hoisting of high-temperature objects. For high-temperature objects, due to the high temperature of the object itself, it has a greater impact on the working space devices and staff around the object, and has higher requirements for stability and safety during lifting and jib rotation. Ordinary jib type Cranes cannot meet the requirements, so there is still a lack of a jib crane that can better adapt to non-linear movement and hoisting of high-temperature objects in the prior art.

Contents of the invention

In order to solve the problem that ordinary jib cranes in the prior art cannot better adapt to the non-linear movement and hoisting work of high-temperature objects; they cannot better make high-temperature objects more stable and safer in the process of hoisting and jib rotation; Further, the state control and other defects of the high-temperature objects being lifted are provided by the present invention, which can better adapt to the non-linear movement and hoisting work of the high-temperature objects; make the high-temperature objects more stable and safer in the process of lifting and rotating the jib. ; And further realize the jib crane that controls the state of the lifted high-temperature objects.

In order to achieve the above object, an embodiment of the present invention provides a jib crane, including a support column, a jib, an electric trolley and a suspension system; Connect the electric trolley, and the electric trolley is equipped with a suspension system; the number of the swing arms is two, and the two swing arms form a fixedly connected fork structure, and the fork structure is located on the horizontal plane; the two swing arms are respectively There is a guide rail groove, and the electric trolley slides along the guide rail groove of the swing arm. Specifically, the two swing arms are located parallel to the horizontal plane, and the ends connected to the rotating shaft are fixedly connected, and there is a gap between the two swing arms arranged in parallel; thus, a fork structure is formed. The electric trolley is respectively connected to the swing arms through the guide rail grooves on the two swing arms, so as to realize sliding along the direction of the swing arms.

The jib crane provided by the present invention realizes the lifting of the suspended object through the suspension system installed on the electric trolley; realizes the movement of the suspended object along the cantilever direction by sliding the electric trolley along the cantilever; The arm rotates around the axis of rotation to complete the non-linear movement of the suspended object. Further, because the number of the jib crane is two, and there is a gap between the two parallel jibs, when the jib crane moves and hoistes the high-temperature object, the area directly above the high-temperature object will be affected by air The temperature is the highest due to convection, and the high-temperature objects suspended by the jib crane are roughly located between the two jibs. Therefore, on the one hand, the loading mode of the two jibs will make the electric vehicle with the high-temperature objects suspended more stable when moving. Thereby reducing the possibility of rotation and shaking of high-temperature objects. On the other hand, high-heat air can easily escape through the gap between the two spiral arms without being blocked by the spiral arms; in addition, compared with the existing In the state-of-the-art single jib crane, the two jibs can also keep electric components such as electric cranes on the jib as far away from the high-temperature objects as possible, thereby reducing the impact of high-temperature objects on the components of the jib crane as a whole. It reduces the possibility of failure of electric components due to high temperature, thereby reducing the impact of high-temperature objects on the crane, and realizing that the jib crane can better adapt to the hoisting of high-temperature objects.

Preferably, the jib crane may also include a fixed frame mounted on the electric trolley to keep the object stable during the moving process. In heavy industry fields such as foundry and smelting, when a crane moves high-temperature castings, the high-temperature castings are prone to rotation and shaking, causing some high-temperature debris attached to the castings to be thrown out, which will not only threaten the personal safety of nearby workers, but also It may cause a fire, but the fixed frame installed on the electric vehicle can better keep the suspended object stable during the movement, so that the hoisting of high-temperature objects can be realized more safely.

Preferably, the jib crane may also include a rotating device installed on the electric trolley, and the rotating device is fixedly connected with the fixed frame. In casting, smelting and other related fields, sometimes because the size and shape of the high-temperature object are limited by the conditions of the construction site or other reasons, people want the suspended object to be placed in a certain position in a specific way. At this time, it is necessary to place the high-temperature object Rotate at a certain angle around the vertical rotation axis, and due to the characteristics of high-temperature objects, even for some lighter high-temperature objects, the staff cannot directly move and rotate them after they fall to the ground. Therefore, the rotating device installed on the electric vehicle can conveniently realize the rotation of the high-temperature object around the vertical rotation axis, thereby satisfying people's requirements for further state manipulation of the high-temperature object. The rotating device is fixedly connected with the fixed frame, so that the fixed frame rotates with the high-temperature object at the same time, and the high-temperature object can be stabilized at any time during the rotation process, so that the entire working process is safer.

Further, the fixed frame may include two vertically arranged fixed rods and a moving rod; the upper ends of the two fixed rods are respectively fixedly connected with the rotating device; the two moving rods are respectively sleeved in the two fixed rods; the two moving rods The lower end of the moving rod is provided with a suspension beam connected with the suspension system, and the bottom end of the moving rod is connected with a suspension end for suspending objects. The fixed frame with the above structure, on the one hand, its symmetrical design can better match the two symmetrical swing arms, improve stability, and also simplify the overall device, facilitate disassembly and assembly, and reduce the possibility of failure; on the other hand On the one hand, the suspension end used to suspend the object is directly connected to the movable rod that can be stretched in the vertical direction, and the suspension system directly acts on the suspension beam of the fixed frame to realize the lifting and landing of the suspended object, not only It can make the suspended object more stable and difficult to move in the horizontal direction; at the same time, it can also make the fixed frame rise or fall together with the suspended object, which can better adapt to certain construction sites with specific conditions, for example, When there is an obstacle of a certain height in the circular working area covered by the jib, the fixed frame of the above structure makes the jib crane more flexible, and it is convenient to cross the obstacle to complete the hoisting of high-temperature objects; in addition, the fixed rod is used The connection mode connected with the moving rod can also shorten the height of the fixed frame in the vertical direction, thereby reducing the space required for the jib crane to work.

Further, the rotating device may include a slide rail A and a bearing capable of rotating the two fixed rods around the vertical direction, and the bearing is slidably connected with the slide rail A to realize sliding along the slide rail A; the upper ends of the two fixed rods are respectively fixed on on the bearing. The rotating device with the above structure can not only simplify the device as a whole, facilitate disassembly and assembly, but also reduce the possibility of failure; it can also better cooperate with the specific structure of the aforementioned fixing frame to realize the rotation of high-temperature objects around the vertical rotation axis. rotate.

Preferably, the fixed frame can also include a suspension piece, the suspension piece is connected to the bottom ends of the two moving rods, and the suspension ends are connected to the moving rod through the suspension piece; there are at least two suspension ends, at least two The two suspension ends are connected with the suspension parts in a manner that the spacing in the horizontal direction can be adjusted. Here, multiple suspension ends hook the suspended object at the same time, which can further improve the stability of the suspended object and reduce the possibility of shaking or tremor. In addition, in the actual work of the crane, in order to better adapt to different suspended objects, suspension parts can be installed on the fixed frame, and multiple suspension ends can be connected to the suspension in a horizontally adjustable manner. Hanger connection. In casting, smelting and other related fields, the size of different models and batches of products will change, but their shape will remain unchanged, and the position of the suspension point on the suspended object will also change accordingly. The spacing of the suspension ends in the horizontal direction can be adjusted, and it is only necessary to adapt the spacing of the suspension ends in the horizontal direction when the product batch changes, so as to facilitate the hoisting of multiple batches of products with the same shape.

Preferably, the electric trolley can include a plate located between two swing arms, a circular through hole is opened in the middle of the plate; the slide rail A is located in the through hole. The electric trolley with the above structure, on the one hand, its symmetrical design can better match the two symmetrical swing arms and other components, and improve the stability; placing the slide rail A of the rotating device in the through hole can also make the whole device more stable. Simplified, easy to disassemble and assemble, and reduce the possibility of failure; on the other hand, the circular through hole on the plate can make the high-heat air escape easily without being blocked, so that the jib crane can Better adapt to work such as hoisting of high-temperature objects.

Preferably, at least one positioning beam can also be installed between the two fixed rods, a hole can be opened at the midpoint of the positioning beam, and the projection of the positioning beam on the flat plate passes through the center of the circular through hole; the suspension rope of the suspension system Connect to the suspension beam through the hole. Here, the suspension rope of the suspension system passes through the hole and connects with the suspension beam, so as to realize the lifting and landing of the fixed frame and the suspended object, which can avoid the suspension rope from being wound on the fixed frame and the suspended object when rotating the fixed frame and the suspended object. Faults caused by related components; in addition, making the projection of the positioning beam on the flat plate pass through the center of the circular through hole can make the fixed rod symmetrically placed on the electric trolley, so that the gravity direction of the suspended object is roughly in the direction of the jib crane The plane of symmetry coincides with the axis of rotation in the vertical direction, thereby improving the stability of the suspended object during rotation.

Preferably, the jib crane can also include a motor that drives the rotary shaft to rotate and a PLC (Programmable Logic Controller) programmed electronic control system. Suspension system electrical connections. The automatic hoisting operation of high-temperature objects can be realized through the PLC programming electronic control system, which improves the production efficiency on the one hand, and keeps the staff away from the work site on the other hand, making the whole work process safer.

Preferably, the jib crane may also include a support arm, one end of the support arm is equipped with a rolling bearing, and the other end is fixedly connected to the end of the two jib arms close to the rotating shaft; the support column is equipped with a slide rail B matched with the rolling bearing, The support arm is slidingly connected with the support column through a rolling bearing. Installing the support arm can increase the maximum lifting weight of the jib crane, and can further improve the stability of the jib crane when it rotates.

Preferably, I-shaped steel can be used for the two swing arms, and the use of I-shaped steel can further save the cost of the device on the basis of ensuring the strength of the swing arm; at the same time, the use of I-shaped steel can also achieve better cooperation with the electric trolley, further Improve device stability.

Preferably, a blocking portion can be provided at the ends of the two swing arms opposite to the rotation shaft, and the blocking portion can prevent the electric vehicle from slipping out of the swing arms by accident.

Description of drawings

Fig. 1 is the schematic diagram of a kind of jib crane described in the embodiment of the present invention;

Fig. 2 is a front view of a jib crane described in an embodiment of the present invention;

Fig. 3 is a top view of a jib crane described in an embodiment of the present invention;

4 is a schematic diagram of a jib crane described in an embodiment of the present invention;

Fig. 5 is a side view of a jib crane described in an embodiment of the present invention;

Fig. 6 is a schematic diagram of the suspension member described in the embodiment of the present invention;

Fig. 7 is a side view of another jib crane described in the embodiment of the present invention;

In the figure, 1. Support column; 11. Slide rail B; 2. Rotary shaft; 3. Rotary arm; 4. Electric trolley; 41. Flat plate; 42. Circular through hole; 510. Suspension rope; 6. Fixing frame ;61, fixed rod; 62, moving rod; 63, suspension beam; 64, suspension piece; 611, positioning beam; 6110, hole; 7, rotating device; 71, slide rail A; 8, suspension end; 9 , Support arm; 91, rolling bearing.

Detailed ways

The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of a jib crane provided by the present invention, as shown in Fig. shown); the swing arm 3 is connected with the support column 1 through the rotation shaft 2, and the swing arm 3 is slidably connected to the electric trolley 4, and the electric trolley 4 is equipped with a suspension system; the number of the swing arms 3 is two, two The root swing arm constitutes a fixedly connected fork structure, and the fork structure is located on the horizontal plane; there is a guide rail groove (not shown in the drawings) on the swing arm, and the electric trolley slides along the guide rail groove of the swing arm.

Specifically, the two swing arms are located parallel to the horizontal plane, one end of which is respectively connected to the rotation shaft 2 is fixedly connected, and there is a gap between the two swing arms 3 arranged in parallel; thereby forming a fork structure. The electric trolley is respectively connected with the swing arms through the guide rail grooves installed on the two swing arms 3, so as to realize sliding along the direction of the swing arms.

The jib crane provided by the present invention realizes the lifting of the suspended object through the suspension system installed on the electric trolley; realizes the movement of the suspended object along the cantilever direction by sliding the electric trolley along the cantilever; The arm rotates around the axis of rotation to complete the non-linear movement of the suspended object. Further, because the number of the jib crane is two, and there is a gap between the two parallel jibs, when the jib crane moves and hoistes the high-temperature object, the area directly above the high-temperature object will be affected by air The temperature is the highest due to convection, and the high-temperature objects suspended by the jib crane are roughly located between the two jibs. Therefore, on the one hand, the loading mode of the two jibs will make the electric vehicle with the high-temperature objects suspended more stable when moving. Thereby reducing the possibility of rotation and shaking of high-temperature objects. On the other hand, high-heat air can easily escape through the gap between the two spiral arms without being blocked by the spiral arms; in addition, compared with the existing In the state-of-the-art single jib crane, the two jibs can also keep electric components such as electric cranes on the jib as far away from the high-temperature objects as possible, thereby reducing the impact of high-temperature objects on the components of the jib crane as a whole. It reduces the possibility of failure of electric components due to high temperature, thereby reducing the impact of high-temperature objects on the crane, and realizing that the jib crane can better adapt to the hoisting of high-temperature objects.

Preferably, as shown in Figures 5 and 7, the jib crane may also include a fixed frame 6 that is mounted on the electric trolley 4 and keeps the object stable during the moving process. In heavy industry fields such as foundry and smelting, when a crane moves high-temperature castings, the high-temperature castings are prone to rotation and shaking, causing some high-temperature debris attached to the castings to be thrown out, which will not only threaten the personal safety of nearby workers, but also It may cause a fire, but the fixed frame installed on the electric vehicle can better keep the suspended object stable during the movement, so that the hoisting of high-temperature objects can be realized more safely.

Preferably, as shown in FIG. 3 , the jib crane may further include a rotating device 7 installed on the electric trolley 4 , and the rotating device 7 is fixedly connected to the fixed frame 6 . In casting, smelting and other related fields, sometimes because the size and shape of the high-temperature object are limited by the conditions of the construction site or other reasons, people want the suspended object to be placed in a certain position in a specific way. At this time, it is necessary to place the high-temperature object Rotate at a certain angle around the vertical rotation axis, and due to the characteristics of high-temperature objects, even for some lighter high-temperature objects, the staff cannot directly move and rotate them after they fall to the ground. Therefore, the rotating device installed on the electric vehicle can conveniently realize the rotation of the high-temperature object around the vertical rotation axis, thereby satisfying people's requirements for further state manipulation of the high-temperature object. The rotating device is fixedly connected with the fixed frame, so that the fixed frame rotates with the high-temperature object at the same time, and the high-temperature object can be stabilized at any time during the rotation process, so that the entire working process is safer.

Preferably, as shown in Figures 1, 2, 4, and 5, the fixed frame 6 can be realized in the following manner: the fixed frame 6 includes two vertically arranged fixed rods 61 and a moving rod 62; the upper ends of the two fixed rods 61 They are respectively fixedly connected with the rotating device 7; the two moving rods 62 are respectively sleeved in the two fixed rods 61; the lower ends of the two moving rods 62 are provided with a suspension beam 63 connected with the suspension system, and the moving rods 62 The bottom end is connected to the suspension end 8 for suspending objects. The fixed frame with the above structure, on the one hand, its symmetrical design can better match the two symmetrical swing arms, improve stability, and also simplify the overall device, facilitate disassembly and assembly, and reduce the possibility of failure; on the other hand On the one hand, the suspension end used to suspend the object is directly connected to the movable rod that can be stretched in the vertical direction, and the suspension system directly acts on the suspension beam of the fixed frame to realize the lifting and landing of the suspended object, not only It can make the suspended object more stable and difficult to move in the horizontal direction; on the other hand, it can also make the fixed frame rise or fall together with the suspended object, which can better adapt to certain construction sites with specific conditions. For example, when there is an obstacle of a certain height in the circular working area covered by the jib, the fixed frame of the above structure makes the jib crane more flexible, and it is convenient to cross the obstacle to complete the hoisting of high-temperature objects; The joint connection mode of the fixed rod and the moving rod can also shorten the height of the fixed frame in the vertical direction, thereby reducing the space required for the work of the jib crane.

Of course, the fixing frame can also adopt any other optional implementation methods. For example, as an optional embodiment, the fixing frame can also be four rigid fixing rods installed vertically at the four corners of the electric vehicle, or symmetrically installed on two or three sides The baffle on the electric bicycle. It should be noted here that the specific structure and shape of the fixing frame need to be specifically determined according to the shape and structure of the working object of the jib crane. For objects of different shapes, those skilled in the art can equip different The shape, structure and connection method of the fixed frame can better keep the suspended object stable during the process of rotating and moving the high-temperature object.

Preferably, as shown in Figure 3, the rotating device can be implemented in the following manner: the rotating device 7 includes a slide rail A71 and a bearing (not shown in the drawings) that can realize the rotation of the two fixed rods 61 around the vertical direction, and the bearing Slidingly connected with the slide rail A71 to realize sliding along the slide rail A; the upper ends of the two fixing rods 61 are respectively fixed on the bearings. The rotating device with the above-mentioned structure can not only simplify the whole device, facilitate disassembly and assembly, but also reduce the possibility of failure; it can also better cooperate with the specific structure of the aforementioned fixing frame 6 to realize the rotation of high-temperature objects around the vertical axis. to rotate.

Of course, the rotating device can also be implemented in any other optional way. Similar to the selection basis of the fixing frame, the specific structure and installation method of the rotating device also need to be further specifically determined according to the shape and structure of the fixing frame. For different fixing Those skilled in the art can correspondingly equip rotating devices with different shapes, structures and connection methods to better keep the suspended objects stable during the process of rotating and moving high-temperature objects.

In addition, the specific implementation method adopted by the above-mentioned fixed frame and the specific connection method between the fixed rod and the rotating device can also be realized by using any other optional implementation methods. For example, as an optional embodiment, the fixed frame can be Realize directly with rigid rods: the bottom ends of the two rigid rods are connected by suspension beams, the upper parts of the two rigid rods are provided with racks along the direction of the rods, and the two rigid rods are respectively connected to the bearings through gears.

Preferably, as shown in Figures 1, 2, 4-6, the fixed frame 6 can also include a suspension 64, the suspension 64 is connected to the bottom ends of the two moving rods 62, and the suspension end 8 passes through the suspension 64 It is connected with the moving rod 62 ; there are at least two suspension ends 8 , and at least two suspension ends 8 are connected to the suspension member 64 in a manner that the spacing in the horizontal direction can be adjusted. Here, the at least two suspension ends can adopt any optional implementation manner to achieve the connection with the suspension member with adjustable spacing in the horizontal direction. As an optional implementation, the suspension end can be connected in the following manner: as shown in Figure 6, a horizontal through groove is opened on the suspension part, and the suspension end can be fixed to the through groove by bolts any position.

Here, multiple suspension ends hook the suspended object at the same time, which can further improve the stability of the suspended object and reduce the possibility of shaking or tremor. In addition, in the actual work of the crane, in order to better adapt to different suspended objects, suspension parts can be installed on the fixed frame, and multiple suspension ends can be connected to the suspension in a horizontally adjustable manner. Hanger connection. In casting, smelting and other related fields, the size of different models and batches of products will change, but their shape will remain unchanged, and the position of the suspension point on the suspended object will also change accordingly. The spacing of the suspension ends in the horizontal direction can be adjusted, and it is only necessary to adapt the spacing of the suspension ends in the horizontal direction when the product batch changes, so as to facilitate the hoisting of multiple batches of products with the same shape.

Of course, the suspension end can be realized in any other optional manner, for example, the suspension end can also be directly installed on the bottom end of the moving rod, or an "L"-shaped moving rod can be directly used to move the bottom of the rod The horizontal part of the end is used as the suspension end of the suspended object, etc.; in addition, the shape of the suspension end can also be arbitrary, for example, the suspension end can be "L" type, "J" type or "U" type, etc. , The specific shape of the suspension end needs to be determined according to the shape of the suspended object and the suspension point where the suspended object can be suspended, so as to better keep the suspended object stable during the process of rotating and moving the high-temperature object.

In addition, the suspension end can also be directly connected to the suspension rope of the suspension system in the traditional way. At this time, the fixed frame can be directly connected to the electric vehicle. The specific setting method still needs to be determined according to the actual operation situation. .

The electric trolley of the jib crane can be realized in any optional manner, preferably, as shown in Figures 1, 3 and 4, the electric trolley 4 can be realized in the following manner: the electric trolley 4 can include two The plate 41 between the swing arms 3 has a circular through hole 42 in the middle of the plate 41 ; the slide rail A71 is located in the through hole 42 . The electric trolley with the above structure, on the one hand, its symmetrical design can better match the two symmetrical swing arms and other components, and improve the stability; placing the slide rail A of the rotating device in the through hole can also make the whole device more stable. Simplified, easy to disassemble and assemble, and reduce the possibility of failure; on the other hand, the circular through hole on the plate can make the high-heat air escape easily without being blocked, so that the jib crane can Better adapt to work such as hoisting of high-temperature objects.

Preferably, as shown in Figures 1-4, at least one positioning beam 611 can also be installed between the two fixed rods 6 of the jib crane, and a hole 6110 can be opened at the midpoint of the positioning beam 611, and the positioning beam 611 can be positioned at The projection on the plate 41 passes through the center of the circular through hole 42; the suspension rope 510 of the suspension system passes through the hole 6110 and is connected with the suspension beam 63. Here, the suspension rope of the suspension system passes through the hole and connects with the suspension beam, so as to realize the lifting and landing of the fixed frame and the suspended object, which can avoid the suspension rope from being wound on the fixed frame and the suspended object when rotating the fixed frame and the suspended object. Faults caused by related components; in addition, making the projection of the positioning beam on the flat plate pass through the center of the circular through hole can make the fixed rod symmetrically placed on the electric trolley, so that the gravity direction of the suspended object is roughly in the direction of the jib crane The plane of symmetry coincides with the axis of rotation in the vertical direction, thereby improving the stability of the suspended object during rotation.

Specifically, the suspension system can be a wire rope type electric hoist or a chain type electric hoist, and correspondingly, the suspension rope can be a steel cable or a chain type chain. Of course, both the suspension system and the suspension rope can be selected arbitrarily, and the specific implementation method needs to be determined according to actual work needs.

Preferably, the jib crane can also include a motor (not shown in the drawings) that drives the rotating shaft to rotate and a PLC programming electric control system (not shown in the drawings), the PLC programming electric control system is connected with the motor, the rotating The device 7, the electric driving vehicle 4 are electrically connected with the suspension system. The automatic hoisting operation of high-temperature objects can be realized through the PLC programming electronic control system, which improves the production efficiency on the one hand, and keeps the staff away from the work site on the other hand, making the whole work process safer.

As an application example of the jib crane in a forging workshop, firstly, the high-temperature furnace door of the casting room sends a door-opening signal to the PLC system, the furnace door opens, and the high-temperature castings are slowly driven out of the casting room with the push table. The program pre-programmed in the PLC system, the crane automatically adjusts the jib and the rotating device, the jib rotates to the predetermined position and automatically decelerates, the suspension system puts down the suspension rope, the moving rod and the suspension end are slowly lowered in place, and push When the table travels to the predetermined position, the cross bar on the high-temperature casting penetrates into the two suspension ends on the moving rod, and the suspension system lifts the suspension rope, thereby driving the high-temperature casting on the moving rod and the suspension end to a certain height. At the same time, the arm rotates to another position and puts down the high-position casting, immerses the high-temperature casting in the cooling water pool for cooling, and after a certain period of time, the casting is removed and placed in a predetermined position. During the whole operation process, the staff can realize the remote or preset control of the high temperature working area, which is convenient and safe. It should be noted here that the jib crane can be programmed into two control modes: automatic control and manual control by PLC, so that it is more convenient to move and hoist the objects to be hoisted.

Preferably, as shown in Figure 7, as another optional embodiment of the present invention, the jib crane may also include a support arm 9, one end of the support arm 9 is equipped with a rolling bearing 91, and the other end is close to the two jibs 3 One end of the rotating shaft 2 is fixedly connected; the support column 1 is equipped with a slide rail B11 matched with the rolling bearing 91 , and the support arm 9 is slidably connected with the support column 1 through the rolling bearing 91 . Installing the support arm can increase the maximum lifting weight of the jib crane, and can further improve the stability of the jib crane when it rotates.

Preferably, as shown in Figures 1 and 4, the two jibs of the jib crane can use I-beams, and the use of I-beams can further save the cost of the device on the basis of ensuring the strength of the jib; The cross-section steel can also achieve better cooperation with the electric vehicle, further improving the stability of the device. Of course, it is also possible to implement the swivel arm in any other optional implementation manner.

When the electric crane is actually installed on the swing arm, the following installation method can be adopted: set a horizontal slide rail on the lower wing of the I-shaped steel swing arm, and install two sets of rails on the electric crane symmetrically connected to the two swing arms respectively. The roller group of the slide rail, the roller shaft and the lower wing plate of the I-shaped steel swing arm adopt an embedded fit method, so that the flat plate on the electric vehicle is roughly located on the horizontal plane, and the circular through hole on the flat plate is roughly in the position of the two swing arms. The middle position, as shown in Figure 2. Certainly, the installation mode of electric trolley also can be selected arbitrarily, for example, electric trolley also can be located on the upper wing plate of I-beam swing arm or the like.

Preferably, a blocking portion can be provided at the ends of the two swing arms opposite to the rotation shaft, and the setting of the blocking portion can prevent the electric vehicle from slipping out of the swing arms by accident, thereby further improving the safety of the device.

In addition, heat insulation boards can be further installed on the two fixing rods, and the heat insulation boards are made of high-temperature-resistant plates, which are horizontally fixed on the fixing rods. Installing the heat shield can further reduce the impact of heat radiation from high-temperature objects on the various components of the crane. At the same time, the external heat and moisture insulation protection layer can be installed on the outside of the connecting cables between the various electric components; the heat and moisture insulation material can be installed on the outside of the motor of the relevant components; the suspension end is made of high temperature and humidity resistant 304 stainless steel; the jib crane as a whole The surface is sprayed with temperature-resistant and moisture-resistant paint, and the above-mentioned preferred method can further make the jib crane better adapt to the complex working environment of high temperature and high humidity.

It should be emphasized here that the operating object of this jib crane is not only for high-temperature objects, it can also better complete the manual/automatic lifting tasks of general cargo, and correspondingly, it can also be aimed at specific lifting tasks and hoisting objects. The specific shape makes adaptive changes to the relevant parts of the jib crane, but this does not affect the non-linear movement of the object that the jib crane can achieve, and the hoisting work is more stable and safer; Features such as state control are available.

The above descriptions are preferred implementation cases of the present invention, and do not limit the present invention in any way; and, in the case of no conflict, each embodiment and each feature in the embodiment of the present invention can be combined with each other. All simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. a revolving jib crane, comprises pillar stiffener (1), spiral arm (3), electric bicycle (4) and Suspension System; Spiral arm is rotaryed connection by S. A. (2) with pillar stiffener, and on spiral arm, sliding block joint electric bicycle, electric bicycle is equipped with Suspension System; It is characterized in that, the number of spiral arm is two, and two spiral arms form the jaw structure be fixedly connected with, and described jaw structure is positioned on horizontal surface; Two spiral arms have guide-track groove, and electric bicycle slides along guide-track groove.

2. revolving jib crane according to claim 1, is characterized in that, also comprises and being satisfied with on electric bicycle and the fixed mount (6) keeping object stable in moving process.

3. revolving jib crane according to claim 2, is characterized in that, also comprise the slewing arrangement (7) be satisfied with on electric bicycle, described slewing arrangement is fixedly connected with fixed mount.

4. revolving jib crane according to claim 3, is characterized in that, fixed mount comprises two fixed links (61) and shifting bar (62) vertically settled; The upper end of two fixed links is fixedly connected with slewing arrangement respectively; Two shifting bars are enclosed within two fixed links respectively; The lower end of two shifting bars is provided with the suspention beam (63) be connected with described Suspension System, and the bottom of shifting bar connects the hanging end (8) for suspending object in midair.

5. revolving jib crane according to claim 4, is characterized in that, slewing arrangement comprises can realize slide rail A (71) that two fixed links rotate around vertical direction and bearing, and bearing slides along slide rail A; The upper end of two fixed links is separately fixed on bearing.

6. revolving jib crane according to claim 5, is characterized in that, described fixed mount also comprises Suspension (64), and Suspension connects the bottom of two shifting bars; Described hanging end is at least two, and at least two hanging ends are connected with described Suspension in the mode that spacing in horizontal direction is adjustable.

7. revolving jib crane according to claim 6, is characterized in that, electric bicycle comprises the flat board (41) be positioned between two spiral arms, and dull and stereotyped middle part has manhole (42); Described slide rail A is positioned at through hole.

8. revolving jib crane according to claim 7, it is characterized in that, also be equipped with at least one positioning beam (611) between two fixed links, the midpoint of positioning beam has hole (6110), the center of circle that be projected through round through hole of described positioning beam on flat board; The suspension rope (510) of Suspension System is connected with suspention beam through hole.

9. revolving jib crane according to claim 8, is characterized in that, also comprise the motor and PLC programming electric-control system that drive S. A. to rotate, described PLC programming electric-control system is electrically connected with motor, slewing arrangement, electric bicycle and Suspension System.

10. according to the revolving jib crane in claim 1-9 described in any one, it is characterized in that, also comprise hold-down arm (9), hold-down arm one end is equipped with antifriction-bearing box (91), and the other end is fixedly connected with two spiral arms one end close to S. A.; Pillar stiffener is equipped with the slide rail B (11) matched with antifriction-bearing box, hold-down arm is by antifriction-bearing box and pillar stiffener sliding block joint.