CN215798108U - Automobile crane counterweight shifting mechanism and automobile crane - Google Patents
Automobile crane counterweight shifting mechanism and automobile crane Download PDFInfo
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- CN215798108U CN215798108U CN202122085182.5U CN202122085182U CN215798108U CN 215798108 U CN215798108 U CN 215798108U CN 202122085182 U CN202122085182 U CN 202122085182U CN 215798108 U CN215798108 U CN 215798108U
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Abstract
The application provides mobile crane counter weight deflection mechanism and mobile crane, this kind of mobile crane counter weight deflection mechanism including the body frame of connecting on the revolving stage, with the frame that shifts, supporting component that the counter weight is connected and the telescopic machanism of being connected with the revolving stage. The telescopic machanism through connecting between revolving stage and the frame that shifts drives the frame that shifts and is close to or keeps away from the reciprocating motion of revolving stage, thereby make the centrobaric position of counter weight change as required, with the requirement of the load of adaptation difference, the frame that shifts simultaneously is at the removal in-process that drives the counter weight, receive supporting component's support and limiting displacement, make the removal orbit of the frame that shifts be the horizontal direction, the stability of the frame that shifts at the drive counter weight removal in-process has been improved, and overall structure is simple, the movable distance of the frame that shifts is great, can effectively satisfy the operation requirement of the balanced load of mobile crane.
Description
Technical Field
The application relates to the field of engineering machinery, in particular to a counterweight shifting mechanism of an automobile crane and the automobile crane.
Background
The balance weight of the automobile crane can keep the stability of the whole machine and balance the load during operation. In order to improve the hoisting performance, a mode of increasing the weight of the balance weight is adopted for medium and small-tonnage automobile cranes, and a mode of shifting the balance weight is adopted for large-tonnage automobile cranes. However, the medium and small tonnage truck crane is limited by the weight of the whole truck and the bridge load, the design of the fixed counterweight is limited by the space and the weight, and the stability and the transportation cost of the whole truck are severely limited by the vehicle-mounted counterweight, so that the distance from the gravity center of the counterweight to the rotation center is very important for ensuring the stability of the whole truck.
However, in the related art, due to the influence of the structure of the truck crane, the movable distance from the counterweight center of gravity to the rotation center of the middle and small-tonnage truck crane is usually short, and the use requirement is difficult to meet.
Disclosure of Invention
In view of this, the application provides a mobile crane counter weight deflection mechanism and mobile crane, has solved the technical problem that the small-tonnage mobile crane counter weight focus is less to centre of gyration distance in the prior art, is difficult to satisfy the operation requirement.
According to one aspect of the present application, the present application provides a mobile crane counterweight shifting mechanism, comprising: a main frame connected to the turntable; the position changing frame is connected with the balance weight and is used for driving the balance weight to move; the displacement frame is movably abutted against the supporting assembly, and the supporting assembly is connected to the main frame; the first end of the telescopic mechanism is connected with the rotary table, and the second end of the telescopic mechanism is connected with the deflection frame and used for driving the deflection frame to move towards the direction close to or far away from the rotary table.
In one embodiment, the support assembly comprises: the lower side of the displacement frame is movably abutted against the first supporting piece, and the first supporting piece is connected to the main frame; and the upper side of the displacement frame movably abuts against the second supporting piece, and the second supporting piece is connected to the main frame.
In one embodiment, the first support comprises: the first side of the first supporting part is fixedly connected to the main frame; the first rotating shafts are rotatably connected to the second sides of the first supporting parts, and the lower sides of the displacement frames movably abut against the first rotating shafts; the second support member includes: the first side of the second supporting part is fixedly connected with the main frame; the second rotating shafts are rotatably connected to the second sides of the second supporting parts, and the upper sides of the displacement frames movably abut against the second rotating shafts; wherein the first rotating shaft and the second rotating shaft are arranged in parallel.
In an embodiment, the first support further comprises: the shaft body of the first rotating shaft is rotatably connected to the first supporting part through the first bearing group; the second support further comprises: and the shaft body of the second rotating shaft is rotatably connected to the second supporting part through the second bearing group.
In one embodiment, the first support part includes: the bending plate is fixedly connected with the main frame; the first bottom plate is detachably connected with the bending plate; the first rotating shaft is rotatably connected between the bending plate and the first bottom plate.
In one embodiment, the index frame includes: two parallel vertical rods, wherein the vertical rods are movably abutted against the first rotating shaft and the second rotating shaft; the transverse rod is connected between the two longitudinal rods and is connected with the telescopic mechanism; wherein, the counter weight sets up on the pole body that the vertical pole is kept away from the revolving stage.
In an embodiment, the first support further comprises: the first limiting blocks are connected to two end parts of the first rotating shaft; the second support further comprises: the second limiting blocks are connected to two end parts of the second rotating shaft; the first limiting block and the second limiting block which are close to the same longitudinal rod are respectively positioned on different sides of the longitudinal rod.
In one embodiment, the telescoping mechanism comprises: the two ends of the mounting shaft are respectively and fixedly connected in the rotary table; and the first end of the driving device is connected with the deflection frame, and the second end of the driving device is connected with the shaft body of the mounting shaft and is used for driving the deflection frame to move towards the direction far away from or close to the rotary table.
In one embodiment, the counterweight is arranged at one end of the displacement frame, which is far away from the rotary table, and is arranged at the same side of the main frame.
According to a second aspect of the present application, there is provided a mobile crane comprising: a turntable; balancing weight; in the foregoing embodiment, the counterweight shifting mechanism is disposed at an end of the shifting mechanism away from the turntable.
The application provides this kind of mobile crane counter weight deflection mechanism and mobile crane, this kind of mobile crane counter weight deflection mechanism including connect the body frame on the revolving stage, with the frame that shifts that the counter weight is connected, supporting component and the telescopic machanism who is connected with the revolving stage. The telescopic machanism through connecting between revolving stage and the frame that shifts drives the frame that shifts and is close to or keeps away from the reciprocating motion of revolving stage, thereby make the centrobaric position of counter weight change as required, with the requirement of the load of adaptation difference, shift simultaneously and frame the removal in-process that drives the counter weight, movably butt in supporting component, because supporting component connects simultaneously in the body frame, consequently shift the frame and receive supporting component's support and limiting displacement, make the removal orbit of frame that shifts be the horizontal direction, the stability of frame that shifts at the drive counter weight removal in-process that has improved, and overall structure is simple, the movable distance of frame that shifts is great, can effectively satisfy the operation requirement of mobile crane balanced load.
Drawings
Fig. 1 is a schematic structural diagram of a counterweight shifting mechanism of an automobile crane according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application.
Fig. 3 is a schematic structural diagram of a support assembly in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application.
Fig. 4 is a schematic structural diagram of a first support member in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application.
Fig. 5 is a schematic structural diagram of a shifting frame in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application.
Description of reference numerals: 100. a turntable; 101. balancing weight; 1. a main frame; 2. a position changing frame; 21. a longitudinal bar; 22. a cross bar; 23. mounting a plate; 24. connecting lugs; 3. a first support member; 31. a first support section; 311. bending the plate; 312. a first base plate; 32. a first rotating shaft; 33. a first stopper; 4. a second support member; 41. a second support portion; 411. a support block; 412. a second base plate; 42. a second rotating shaft; 43. a second limiting block; 5. a telescoping mechanism; 51. installing a shaft; 52. a drive device.
Detailed Description
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural diagram of a counterweight shifting mechanism of an automobile crane according to an embodiment of the present application. As shown in fig. 1, the counterweight displacement mechanism of the truck crane comprises a main frame 1 connected to a rotary table 100, a displacement frame 2 connected to a counterweight 101, a support assembly, and a telescopic mechanism 5 connected to the rotary table 100.
Fig. 2 is a schematic structural diagram of a counterweight shifting mechanism of an automobile crane according to an embodiment of the present application. As shown in fig. 1 and 2, the shifting frame 2 is used for driving the counterweight 101 to move, so as to change the position of the center of gravity of the counterweight 101, so as to maintain the stability of the whole crane and balance the load; the supporting component is connected to the main frame 1, and the movably butt of frame 2 that shifts is in the supporting component, and at the removal in-process of frame 2 that shifts, because the quality of counter weight 101 is great, need the supporting component to play support and spacing effect to it, play the limiting displacement to the removal orbit of frame that shifts simultaneously, reduce the probability that the counter weight 101 place end appears turning on one's side on the frame 2 that shifts, ensure the safety of operation.
The automobile crane counterweight shifting mechanism comprises a main frame 1 connected to a rotary table 100, a shifting frame 2 connected with a counterweight 101, a supporting component and a telescopic mechanism 5 connected with the rotary table 100. The telescopic mechanism 5 connected between the rotary table 100 and the displacement frame 2 drives the displacement frame 2 to do reciprocating motion close to or far away from the rotary table 100, so that the position of the gravity center of the counterweight 101 can be changed as required, and the telescopic mechanism is suitable for different loads, and meanwhile, the displacement frame 2 drives the counterweight 101 to move in the process, and is supported by the supporting component and limited by the limiting component, so that the moving track of the displacement frame 2 is in the horizontal direction, the stability of the displacement frame 2 in the process of driving the counterweight 101 to move is improved, the whole structure is simple, the movable distance of the displacement frame 2 is large, and the use requirement of an automobile crane for balancing loads can be effectively met.
Specifically, as shown in fig. 1 and 2, the support assembly further includes a first support 3 and a second support 4. Wherein, the first supporting part 3 is connected with the main frame 1, and the lower side of the displacement frame 2 is movably abutted against the first supporting part 3; the second support member 4 is connected to the main frame 1, and the upper side of the displacement frame 2 is movably abutted against the second support member 4. In the moving process of the position changing frame 2, because the gravity of the counterweight 101 is large, the first supporting piece 3 and the second supporting piece 4 are required to play supporting and limiting roles on two sides of the position changing frame 2, namely in the Y direction in the vertical direction, so that the moving track of the position changing frame 2 is limited, the probability of side turning of the end where the counterweight 101 is located due to the large mass of the counterweight 101 is reduced, and the operation safety is improved; the first end of the telescopic mechanism 5 is connected with the turntable 100, the second end is connected with the displacement frame 2, the telescopic mechanism 5 takes the turntable 100 as a supporting point, and the second end is a telescopic part and is used for driving the displacement frame 2 to move towards or away from the turntable 100, namely, the displacement frame 2 moves in the horizontal direction X, so as to provide driving force for the displacement frame 2 to drive the counterweight 101 to move.
In a possible implementation manner, fig. 3 is a schematic structural diagram of a support assembly in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application. As shown in fig. 1 and 3, the first support 3 specifically includes a first support portion 31 and a first rotating shaft 32. Wherein, the first side of the first supporting part 31 is fixedly connected to the main frame 1, the second side is rotatably connected with the first rotating shaft 32, and the first supporting part 31 integrally and fixedly connects the first supporting part 3 to the main frame 1; the first rotating shafts 32 are two or more, each first rotating shaft 32 is rotatably connected to the second side of the first supporting portion 31, the lower side of the displacement frame 2 is movably abutted to the first rotating shaft 32, each first rotating shaft 32 is rotatable relative to the displacement frame 2, when the displacement frame 2 moves in the horizontal direction X below the first rotating shaft 32, rolling friction is formed between the first rotating shaft 32 and the displacement frame 2, the generated friction force is small, the rapid movement of the displacement frame 2 is facilitated, the movement speed and accuracy of the gravity center of the counterweight 101 are improved, and unnecessary energy loss is reduced.
It should be noted that the number of the first rotating shafts 32 may be two, or may be two or more, and when the number of the first rotating shafts 32 is two, the number of the first rotating shafts 32 is less, but the use requirement may also be satisfied; when the number of the first rotating shafts 32 is greater than two, the apparatus cost is increased, but the moving process of the index frame 2 is more stable. Therefore, the specific number of the first rotating shafts 32 should depend on the specific application scenario, and the specific number of the first rotating shafts 32 is not further limited in the present application.
As shown in fig. 1 and 3, similarly to the first support 3, the second support 4 specifically includes a second support portion 41 and a second rotating shaft 42. Wherein, the first side of the second supporting part 41 is fixedly connected with the main frame 1, and the second side is rotatably connected with the second rotating shaft 42; the second rotating shafts 42 are provided with two or more second rotating shafts 42, each second rotating shaft 42 is rotatably connected with the second side of the second supporting portion 41, the upper side of the displacing frame 2 is movably abutted against the second rotating shafts 42, and each second rotating shaft 42 is rotatable relative to the displacing frame 2. The first rotating shaft 32 and the second rotating shaft 42 are arranged in parallel, and when the displacement frame 2 moves in the horizontal direction, the first rotating shaft 32 located below the displacement frame 2 and the second rotating shaft 42 located above the displacement frame 2 play a role in limiting the displacement of the displacement frame 2 in the vertical direction, so that the movement track of the displacement frame 2 can be carried out in the horizontal direction X. Meanwhile, the movement between the first rotating shaft 32 and the second rotating shaft 42 and the position changing frame 2 is rolling friction, and the friction force is relatively small, so that the position changing frame 2 can move rapidly under the driving of the telescopic mechanism 5, and unnecessary energy loss is reduced by 4.
It should be noted that the number of the second rotating shafts 42 may be two or more, the specific number should be determined according to a specific application scenario, and the specific number of the second rotating shafts 42 is not further limited in this application.
In addition, the first support portion 31, the second support portion 41 and the main frame 1 are fixedly connected, and the first support portion 31 and the main frame 1 and the second support portion 41 and the main frame 1 may be welded to each other, or the first support portion 31 and the main frame 1 and the second support portion 41 and the main frame 1 may be fastened and bolted to each other to achieve fixed connection.
Specifically, as shown in fig. 3, the first support 3 further includes a first bearing set, and the shaft body of the first rotating shaft 32 is rotatably connected to the first support 31 through the first bearing set, so as to reduce the friction between the first rotating shaft 32 and the first support 31 during the rotation process. The second support 4 further comprises a second bearing set, through which the shaft body of the second rotation shaft 42 is rotatably connected to the second support 41, for reducing the friction force between the second rotation shaft 42 and the second support 41 during rotation. When the first bearing set and the second bearing set slide between the first rotating shaft 32 and the second rotating shaft 42 in the shifting frame 2, the rotating resistance of the first rotating shaft 32 and the second rotating shaft 42 is reduced, so that the speed of the shifting process of the shifting frame 2 is effectively improved.
Optionally, fig. 4 is a schematic structural diagram of a first support member in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application. As shown in fig. 4, the first supporting portion 31 includes a bending plate 311 and a first bottom plate 312, wherein a bending side of the bending plate 311 is detachably connected to the first bottom plate 312, an un-bending side of the bending plate 311 is fixedly connected to the main frame 1, and the first rotating shaft 32 is rotatably connected between the bending plate 311 and the first bottom plate 312 through a first bearing set. Because first axis of rotation 32 sets up in the below of frame 2 that shifts for the required thickness of first supporting part 31 is great, otherwise be difficult to with body frame 1 fixed connection, play the connection effect for first supporting part 31, consequently, choose for use the plate of bending to replace solid subassembly can save raw materials, and alleviate the quality of first supporting part 3 self.
It should be noted that the detachable connection between the bending plate 311 and the first bottom plate 312 may be implemented by bolt connection, or may be implemented by other assembling manners, depending on a specific implementation scenario, and the detachable connection manner between the bending plate 311 and the first bottom plate 312 is not further limited in this application.
Alternatively, as shown in fig. 3, the second support part 41 includes a support block 411 and a second base plate 412. The first side of the supporting block 411 is fixedly connected to the main frame 1, the second side is detachably connected to the second base plate 412, and the second rotating shaft 42 is rotatably connected between the supporting block 411 and the second base plate 412 through a second bearing set. Because the second rotating shaft 42 is arranged above the shifting frame 2, the second supporting part 41 can be fixedly connected with the main frame 1 without large thickness, so that the second supporting part 41 can be of a solid block structure, raw materials are more available, and the processing is simpler.
It should be understood that the first support portion 31 and the second support portion 41 may be the above-mentioned combination, or may be an integral block structure. Meanwhile, the number of the first supporting portions 31 and the number of the second supporting portions 41 can be one or more, when the number of the first supporting portions 31 or the number of the second supporting portions 41 are one, the number of required parts is small, the installation is convenient, the cost is saved, and when the number of the first supporting portions 31 or the number of the second supporting portions 41 is large, the supporting and connecting functions can be better realized. Therefore, the present application does not further limit the specific structure and the specific number of the first support part 31 and the second support part 41.
In a possible implementation manner, fig. 5 is a schematic structural diagram of a shifting frame in a counterweight shifting mechanism of a mobile crane according to another embodiment of the present application. As shown in fig. 2 and 5, the transposing frame 2 may specifically include two longitudinal bars 21 parallel to each other and a cross bar 22 connected between the two longitudinal bars 21. The cross bar 22 is connected to the telescopic mechanism 5 and perpendicular to the longitudinal bars 21, and both of the longitudinal bars 21 are movably abutted to the first rotating shaft 32 and the second rotating shaft 42. An L-shaped mounting plate 23 is connected to the shafts of the two vertical rods 21 far away from the telescopic mechanism 5 through bolts, the mounting plate 23 is used for mounting the counterweight 101, and the counterweight 101 is fixedly connected to the mounting plate 23 through bolts. In addition, the two longitudinal bars 21 and the transverse bar 22 can be fixedly connected by welding. Due to the fixed connection of the cross bar 22 and the longitudinal bar 21, the positioning frame 2 is of an integral structure. Meanwhile, the cross rod 22 is connected with the telescopic mechanism 5, the telescopic mechanism 5 drives the cross rod 22 to move, meanwhile, the cross rod 22 drives the longitudinal rod 21 to move together, the longitudinal rod 21 further drives the balance weight 101, and therefore the gravity center position of the balance weight 101 is adjusted to adapt to different loads, and operation safety is improved.
Specifically, as shown in fig. 2 and 5, the shift frame 2 may further include two engaging lugs 24 fixedly connected to the cross bar 22, and the two engaging lugs 24 are oppositely disposed about the center of the cross bar 22 for performing the hinge connection between the cross bar 22 and the telescopic mechanism 5. Wherein, two engaging lugs 24 wear to be equipped with the round pin axle simultaneously, articulate horizontal pole 22 and telescopic machanism 5 through round pin axle and engaging lug 24, and above-mentioned structure can make telescopic machanism 5 nimble more fast when drive displacement frame 2 removes.
Further, as shown in fig. 3 and 4, the first support member 3 may further include first stoppers 33 connected to both end portions of the first rotating shaft 32, and the second support member 4 may further include second stoppers 43 connected to both end portions of the second rotating shaft 42. The first stopper 33 and the second stopper 43, which are close to the same longitudinal bar 21, are respectively located on different sides of the longitudinal bar 21. The first limiting block 33 and the second limiting block 43 on the same side of the longitudinal rod 21 limit the displacement of the longitudinal rod 21 in the axial direction of the first rotating shaft 32, so that the probability that the shifting frame 2 generates large offset along the axial direction of the first rotating shaft 32 or the second rotating shaft 42 in the process of driving the counterweight 101 to move is reduced, the accuracy of the gravity center movement of the counterweight 101 is further ensured, the load is more effectively balanced, and the operation safety is improved.
It should be noted that the first limiting block 33 and the first rotating shaft 32, and the second limiting block 43 and the second rotating shaft 42 may be fixedly sleeved, or detachably connected by a thread, which depends on the specific application scenario, and the connection manner of the above components is not further limited in this application.
Optionally, as shown in fig. 2 and fig. 3, the telescoping mechanism 5 includes a mounting shaft 51 and a driving device 52, wherein both ends of the mounting shaft 51 are respectively and fixedly connected in the turntable 100, a first end of the driving device 52 is hinged to the cross bar 22 of the displacement frame 2 through a pin, and a second end of the driving device 52 is hinged to the center of the mounting shaft 51 through a pin, so as to implement mounting of the driving device 52, and at the same time, the driving device 52 is used to drive the cross bar 22 and the longitudinal bar 21 to displace, thereby implementing change of the gravity center position of the counterweight 101.
Specifically, as shown in fig. 2 and fig. 3, the driving device 52 may be a telescopic hydraulic cylinder or a telescopic cylinder, and the telescopic rod structure of the telescopic hydraulic cylinder or the telescopic cylinder drives the cross rod 22 to move, and the cross rod 22 drives the longitudinal rod 21 and the counterweight 101 mounted on the longitudinal rod 21 to move, so as to change the position of the center of gravity of the counterweight 101, and the movable range of the center of gravity of the counterweight 101 is large, so that the load range that the counterweight can balance is also large, and the actual benefit of the displacement process is improved.
Preferably, as shown in fig. 2, the counterweight 101 is provided at one end of the displacement frame 2 remote from the turntable 100, and is provided on the same side as the main frame 1. Compared with the prior art that the counterweight 101 is arranged below the displacement frame 2, the counterweight 101 is arranged above the displacement frame 2, so that the space below the displacement frame 2 can be saved, the interference constraint of the counterweight 101 and the chassis is reduced, the space below the hoisting box is enlarged, and the utilization space of the crane is increased.
The application provides a mobile crane counter weight deflection mechanism's use does: when the mass of the load changes, the driving device 52 of the telescopic mechanism 5 is opened, and the telescopic rod of the driving device 52 pushes the cross rod 22 to move towards or away from the turntable 100 until the position is adjusted to a proper position, so that the counterweight 101 can effectively balance the load, and the change of the gravity center position of the counterweight 101 is realized.
In addition, as shown in fig. 2, the present application further provides a mobile crane, which includes a rotating platform 100, a counterweight 101 and the above-mentioned mobile crane counterweight shifting mechanism, wherein the counterweight 101 is disposed at one end of the shifting mechanism far away from the rotating platform 100. The movable range of the gravity center of the counterweight 101 of the automobile crane is large, the load range of the counterweight can be large, and the use value and the safety of the automobile crane are effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a mobile crane counter weight deflection mechanism which characterized in that includes:
a main frame (1) connected to the turntable (100);
the positioning device comprises a positioning frame (2), a counterweight (101), a positioning mechanism and a positioning mechanism, wherein the positioning frame (2) is connected with the counterweight (101) and is used for driving the counterweight (101) to move;
the displacement frame (2) is movably abutted against the supporting component, and the supporting component is connected to the main frame (1);
the first end of the telescopic mechanism (5) is connected with the rotary table (100), and the second end of the telescopic mechanism (5) is connected with the position changing frame (2) and used for driving the position changing frame (2) to move towards the direction close to or far away from the rotary table (100).
2. The mobile crane counterweight shifting mechanism of claim 1, wherein said support assembly comprises:
the lower side of the displacement frame (2) is movably abutted against the first supporting piece (3), and the first supporting piece (3) is connected to the main frame (1);
a second support member (4), wherein the upper side of the displacement frame (2) is movably abutted against the second support member (4), and the second support member (4) is connected to the main frame (1).
3. The mobile crane counterweight displacement mechanism according to claim 2, wherein the first support member (3) comprises:
a first supporting part (31), wherein the first side of the first supporting part (31) is fixedly connected to the main frame (1);
at least two first rotating shafts (32), wherein the first rotating shafts (32) are rotatably connected to the second side of the first supporting part (31), and the lower side of the displacement frame (2) is movably abutted to the first rotating shafts (32);
the second support (4) comprises:
a second support part (41), wherein the first side of the second support part (41) is fixedly connected with the main frame (1);
at least two second rotating shafts (42), wherein the second rotating shafts (42) are rotatably connected to the second sides of the second supporting parts (41), and the upper sides of the displacement frames (2) are movably abutted to the second rotating shafts (42);
wherein the first rotation axis (32) and the second rotation axis (42) are arranged in parallel.
4. The mobile crane counterweight displacement mechanism according to claim 3, wherein the first support member (3) further comprises:
a first bearing group, through which the shaft body of the first rotating shaft (32) is rotatably connected to the first supporting part (31);
the second support (4) further comprises:
and the shaft body of the second rotating shaft (42) is rotatably connected to the second supporting part (41) through the second bearing group.
5. The mobile crane counterweight shifting mechanism of claim 3, wherein the first support portion (31) comprises:
a bending plate (311) fixedly connected with the main frame (1);
the first bottom plate (312) is detachably connected with the bending plate (311);
wherein, the first rotating shaft (32) is rotatably connected between the bending plate (311) and the first bottom plate (312).
6. The mobile crane counterweight shifting mechanism according to claim 3, wherein the shifting frame (2) comprises:
two mutually parallel vertical bars (21), wherein the vertical bars (21) are movably abutted against the first rotating shaft (32) and the second rotating shaft (42);
the cross rod (22) is connected between the two longitudinal rods (21), and the cross rod (22) is connected with the telescopic mechanism (5);
wherein the counterweight (101) is arranged on the rod body of the vertical rod (21) far away from the rotary table (100).
7. The mobile crane counterweight displacement mechanism according to claim 6, wherein the first support member (3) further comprises:
first stoppers (33), the first stoppers (33) being connected to both ends of the first rotating shaft (32);
the second support (4) further comprises:
a second stopper (43), wherein the second stopper (43) is connected to both ends of the second rotating shaft (42);
the first limiting block (33) and the second limiting block (43) which are close to the same longitudinal rod (21) are respectively positioned on different sides of the longitudinal rod (21).
8. The mobile crane counterweight displacement mechanism according to claim 1, wherein the telescoping mechanism (5) comprises:
the two ends of the mounting shaft (51) are respectively and fixedly connected in the rotary table (100);
and a first end of the driving device (52) is connected with the displacement frame (2), and a second end of the driving device (52) is connected with the shaft body of the mounting shaft (51) and is used for driving the displacement frame (2) to move towards the direction far away from or close to the rotary table (100).
9. The mobile crane counterweight displacement mechanism according to claim 1, wherein the counterweight (101) is arranged at one end of the displacement frame (2) far away from the rotary table (100) and is arranged at the same side of the main frame (1).
10. A truck crane, comprising:
a turntable (100);
a counterweight (101);
the mobile crane counterweight indexing mechanism of any one of claims 1 to 9, wherein the counterweight (101) is arranged at an end of the indexing mechanism remote from the turntable (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085182.5U CN215798108U (en) | 2021-08-31 | 2021-08-31 | Automobile crane counterweight shifting mechanism and automobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085182.5U CN215798108U (en) | 2021-08-31 | 2021-08-31 | Automobile crane counterweight shifting mechanism and automobile crane |
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| Publication Number | Publication Date |
|---|---|
| CN215798108U true CN215798108U (en) | 2022-02-11 |
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| CN202122085182.5U Active CN215798108U (en) | 2021-08-31 | 2021-08-31 | Automobile crane counterweight shifting mechanism and automobile crane |
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2021
- 2021-08-31 CN CN202122085182.5U patent/CN215798108U/en active Active
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