Rail car and hoisting equipment

Abstract

The utility model provides a rail car and hoisting equipment, comprising a bearing plate suitable for bearing a balancing weight; the at least two load wheel sets are arranged along the bottom surface of the bearing plate, are suitable for being movably connected with an external track of hoisting equipment, and move along the external track under the action of external force; the adjusting structure is arranged on the bottom side of the bearing plate and connected with the load wheel set and the bearing plate, and the load wheel set is suitable for having a position adjusting state of moving relative to the bearing plate and a working state of being connected and locked with the bearing plate under the action of the adjusting structure. By means of the arrangement, the distribution position of the load wheel set can be adaptively adjusted according to needs, the rail car is suitable for arc-shaped external rails with different radiuses or external rails with other shapes, and the application range of the rail car is further widened.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a rail vehicle and hoisting equipment. Background Art

[0002] In the existing wind power industry, most crawler cranes with super-lifting counterweight functions have ground-mounted super-lifting counterweights. That is, when the hook head is not lifting heavy objects or the heavy objects are light, the super-lifting counterweight is placed directly on the ground and cannot move or rotate freely. As a result, after unloading the cargo, the super-lifting counterweight requires another crane or other conveying equipment to be transported to the required location, which increases the time for transporting the counterweight block and affects the efficiency of the lifting operation.

[0003] Some existing large-tonnage crawler cranes feature a slewing counterweight system when the hook is unloaded. This is due to their large lifting capacity and strong boom strength, which allows them to lift the counterweight. However, these systems are expensive to manufacture, making them uncompetitive in the smaller crawler crane market. Some smaller crawler cranes utilize rubber tires to transport the counterweight, but tire-based transport has limited capacity. High-tonnage counterweights require a larger chassis, making them difficult to install in smaller spaces.

[0004] Even if the wheel volume can be reduced and a large chassis area can be avoided by setting up a track structure and combining it with fixed wheel load-bearing, the application scope of such a wheel structure is relatively fixed and it is difficult to apply it to different types of track structures and crawler cranes. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the narrow application scope of the existing technology of the method of using a rail structure to cooperate with a conveyor vehicle to carry the super-lifting counterweight, thereby providing a rail vehicle and lifting equipment.

[0006] The utility model provides a rail vehicle, comprising: a load-bearing plate, suitable for bearing a counterweight; at least two load-bearing wheel groups, arranged along the bottom surface of the load-bearing plate, suitable for being movably connected to the outer track of a lifting device and moving along the outer track under the action of an external force; an adjustment structure, arranged on the bottom side of the load-bearing plate, connected to the load-bearing wheel group and the load-bearing plate, and the load-bearing wheel group being suitable for having an adjustment state of moving relative to the load-bearing plate and a working state of being connected and locked with the load-bearing plate under the action of the adjustment structure.

[0007] The rail vehicle further comprises: a plurality of base plates, which are arranged corresponding to the load wheel groups and are arranged between the bearing plate and the load wheel groups.

[0008] The load wheel group includes: at least one pair of load-bearing wheels, which are arranged on the lower side of the base plate and are respectively adjacent to the two ends of the base plate, and are suitable for clamping and limiting at the side of the external track.

[0009] The load-bearing wheel includes a hard wheel body and a load-bearing base. The load-bearing base is respectively connected to the hard wheel body and the base plate and is suitable for horizontal circumferential movement under the action of external force. The hard wheel body is movably connected to the external track.

[0010] The adjustment structure includes: a guide assembly, including a movably connected guide fitting and a guide member, which are respectively arranged on the base plate and the supporting plate, and the direction of movement of the load wheel group along the external track is set as the travel direction, the length direction of the guide member is set perpendicular to the travel direction, and the guide fitting is suitable for moving along the length direction of the guide member under the action of external force; a locking member is set on the guide fitting or the guide member, and has a locking state for locking the relative movement of the guide fitting and the guide member and an active state for unlocking the relative movement of the guide fitting and the guide member.

[0011] The guide member is provided as a long hole, and the guide matching member is provided as a limiting protrusion; or, the guide member is provided as a limiting protrusion, and the guide matching member is provided as a long hole.

[0012] The rail vehicle further comprises: a pulling structure, arranged on the side of the bearing plate, suitable for detachably connecting to the lifting body; and / or a driving assembly, arranged on the bearing plate, suitable for driving the load wheel set to move relative to the outer track.

[0013] The driving assembly includes: a driving member connected to the load wheel group and suitable for driving the load wheel group to move along the external track; a control member connected to the driving member for communication and suitable for adjusting the start and stop of the driving member.

[0014] The rail car further includes a brake structure, which is in communication with the drive assembly and is suitable for braking the load-bearing wheel set.

[0015] The utility model also provides a lifting device, comprising: a lifting body; an external track, arranged in the circumference of the lifting body; the above-mentioned rail car, movably connected to the external track, suitable for carrying a counterweight block, and moving along the external track under the action of external force.

[0016] The technical solution of this utility model has the following advantages:

[0017] When multiple load wheel assemblies are matched with and movably connected to the external track, it is necessary to set corresponding limiters for each load wheel assembly on the external track. When the radius of the annular or partially annular external track, or the shape of the external track changes due to the model or installation terrain, the distribution position of the load wheel assemblies under the rail vehicle is relatively fixed and difficult to apply.

[0018] By arranging an adjustment structure on the bottom side of the load-bearing plate, each group of load wheel groups can move relative to the load-bearing plate, and the position of the load wheel group at the lower end of the load-bearing plate can be adjusted accordingly. This arrangement, on the one hand, allows the distribution position of the load wheel group to be adaptively adjusted as needed, and can be suitable for arc-shaped external tracks of different radii. On the other hand, setting the load wheel group to a positioning state can make the position of the load wheel group under the rail vehicle change accordingly according to the shape of the external track during travel, and can be suitable for a zigzag external track, further improving the applicability of the rail vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of a rail vehicle provided in an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A schematic top view of the railcar is shown;

[0022] Figure 3 for Figure 1 A schematic side view of the railcar is shown;

[0023] Description of reference numerals:

[0024] 1. Load-bearing plate; 2. Counterweight; 3. Load wheel assembly; 301. Load-bearing wheel; 4. Adjustment structure; 5. Base plate; 6. Pulling structure; 7. Drive assembly. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 - Figure 3 The utility model provides a rail vehicle, comprising: a bearing plate 1, at least two load-bearing wheel sets 3 and an adjustment structure 4.

[0030] The specific shape of the supporting plate 1 is not subject to excessive restrictions, as long as it can bear the counterweight 2. In this embodiment, it is a rectangular flat plate. Preferably, a limiting portion is provided to prevent the counterweight 2 from falling. Preferably, it can be a ring-shaped limiting protrusion provided on the edge of the supporting plate 1. It can also be further reinforced with a frame, a mesh cover, a tether, and other structures.

[0031] At least two load wheel groups 3 are arranged along the bottom surface of the load-bearing plate 1, suitable for being movably connected to the external track of the lifting equipment and moving along the external track under the action of external force. In this embodiment, two or three load wheel groups 3 are provided, and each load wheel group 3 is provided with a pair of load wheels 301.

[0032] The adjustment structure 4 is arranged on the bottom side of the load-bearing plate 1 and is connected to the load wheel group 3 and the load-bearing plate 1. The load wheel group 3 is suitable for having an adjustment state of moving relative to the load-bearing plate 1 and a working state of being connected and locked with the load-bearing plate 1 under the action of the adjustment structure 4.

[0033] When multiple load wheel groups 3 are matched with the external track and movably connected, it is necessary to set corresponding limits on each load wheel group 3 on the external track. When the radius of the annular or partially annular external track, or the shape of the external track changes due to the model or installation terrain, the distribution position of the load wheel group 3 under the rail car is relatively fixed, which is difficult to apply to it.

[0034] By arranging an adjustment structure 4 on the bottom side of the load-bearing plate 1, each group of load wheel groups 3 can move relative to the load-bearing plate 1, and the position of the load wheel group 3 at the lower end of the load-bearing plate 1 can be adjusted accordingly. This arrangement, on the one hand, allows the distribution position of the load wheel group 3 to be adaptively adjusted as needed, and can be suitable for arc-shaped external tracks of different radii. On the other hand, setting the load wheel group 3 to a positioning state can make the position of the load wheel group 3 under the rail vehicle change accordingly according to the shape of the external track during travel, and can be suitable for a zigzag external track, further improving the applicability of the rail vehicle.

[0035] The railcar also includes several base plates 5, each corresponding to a load wheel assembly 3 and positioned between the support plate 1 and the load wheel assembly 3. In this embodiment, the base plates 5 are rectangular and perpendicular to the direction of travel of the railcar. Specifically, the length of the base plates 5 is aligned with the width of the support plate 1, and the base plates 5 are spaced apart from each other. The base plates 5 serve as a base for the load wheel assembly 3, facilitating the independent movement of each load wheel assembly 3 under the control of the adjustment structure 4.

[0036] The load wheel assembly 3 includes a pair of load wheels 301. Both load wheels 301 are disposed on the underside of the base plate 5 and adjacent to both ends of the base plate 5, and are adapted to be clamped and positioned laterally of the external track. As an alternative embodiment, the load wheel assembly 3 may also include multiple pairs of load wheels 301.

[0037] The load-bearing wheel 301 comprises a hard wheel body and a load-bearing base. The load-bearing base is disc-shaped and connected to the hard wheel body and the base plate 5. It is adapted to rotate horizontally in a circular direction under the action of an external force, allowing the hard wheel body to adjust its orientation. The hard wheel body is connected to the external track in a positionally movable manner, which can form an H-shaped arrangement, or the two hard wheel bodies of a pair of load-bearing wheels 301 can be positioned outside or inside two parallel sub-tracks of the external track. The hard wheel body is preferably made of steel or iron. This configuration is simple, low-cost, and has a wide range of applications.

[0038] As an alternative embodiment, the load wheel 301 may include a hard, spherical main body and a connection base partially capped and attached to the base plate 5. The connection base is positioned away from the external rail. The main body is preferably made of steel or iron and is adapted for rolling engagement with the lateral arcuate groove of the external rail. By configuring the load wheel 301 as a hard, spherical universal wheel, a rolling connection with the external rail is achieved, reducing friction and increasing service life.

[0039] The adjustment structure 4 includes a guide assembly and a locking member.

[0040] Specifically, the guide assembly includes a movably connected guide fitting and a guide member, the guide fitting is arranged on the base plate 5, the guide member is arranged on the load-bearing plate 1, and the load wheel group 3 is arranged to move along the direction of the external track as the travel direction. Preferably, the length direction of the guide member is arranged perpendicular to the travel direction, and the guide fitting is suitable for moving along the length direction of the guide member under the action of external force; as a convertible embodiment, the length direction of the guide member can also be inclined relative to the vertical travel direction as needed.

[0041] The locking piece is arranged on the guide fitting piece or the guide piece, and has a locking state for locking the relative movement of the guide fitting piece and the guide piece and an active state for unlocking the relative movement of the guide fitting piece and the guide piece.

[0042] Specifically, in this embodiment, the guide member is provided as a long hole, and the guide matching member is provided as a limiting protrusion. Specifically, a laterally extending snap-fit ​​block is provided on the portion of the limiting protrusion that extends into and out of the long hole. The locking member can be a stud that penetrates the snap-fit ​​block and the supporting plate 1, or a snap-fit ​​groove provided on the supporting plate 1 for limiting the supporting plate 1.

[0043] As a convertible implementation method, the guide member is provided as a limiting protrusion, and the guide matching member is provided as a long hole.

[0044] The rail vehicle further includes: a pulling structure 6 and a driving assembly 7 for providing driving force for the rail vehicle. As a convertible embodiment, only one of the pulling structure 6 and the driving assembly 7 can be provided.

[0045] In this embodiment, the pulling structures 6 are respectively arranged on the sides of the load-bearing plate 1. Further preferably, a lateral gap can be set between the counterweight blocks 2. The pulling structure 6 is arranged in the middle of the load-bearing plate 1 and is detachably connected to the lifting body through the lateral gap. The pulling structure 6 is preferably a pulling rod; the driving assembly 7 is arranged at the end of the load-bearing plate 1, and is suitable for driving the load wheel group 3 to move relative to the external track.

[0046] The driving assembly 7 includes a driving component and a control component.

[0047] The driving member is connected to the load wheel assembly 3 and is suitable for driving the load wheel assembly 3 to move along the external track. Preferably, the driving member is hydraulically driven, specifically, a drive motor. The control member is electrically connected to the driving member and specifically, can be a regulating switch or speed regulating switch, or can also be a PLC, etc., for adjusting the start and stop of the driving member and the speed of the driving member.

[0048] The rail car also includes a brake structure, which is communicated with the drive assembly 7 and is specifically electrically connected to the control component, suitable for braking the load wheel group 3. The specific form of the brake structure is not too restricted as long as it meets the braking needs. It is preferably a brake shoe brake or a brake disc brake structure.

[0049] The present invention also provides a lifting device, which can be a crawler crane, etc., comprising: a lifting body, an external track, and the aforementioned track car. The external track is preferably arranged in an annular or semi-annular shape and is arranged circumferentially of the lifting body. The aforementioned track car is movably connected to the external track, suitable for carrying a counterweight 2 and moving along the external track under the action of an external force.

[0050] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A rail vehicle, characterized in that: include: A bearing plate (1) adapted to bear a counterweight (2); At least two load-bearing wheel sets (3) are arranged along the bottom surface of the bearing plate (1), and are suitable for being movably connected to the outer track of the lifting equipment and moving along the outer track under the action of external force; The adjusting structure (4) is arranged on the bottom side of the bearing plate (1) and is connected to the load wheel group (3) and the bearing plate (1). The load wheel group (3) is suitable for having an adjusting state of moving relative to the bearing plate (1) and a working state of being connected and locked with the bearing plate (1) under the action of the adjusting structure (4).

2. The rail vehicle according to claim 1, characterized in that: Also includes: A plurality of base plates (5) are arranged corresponding to the load wheel set (3) and are arranged between the bearing plate (1) and the load wheel set (3).

3. The rail vehicle according to claim 2, characterized in that: The load wheel set (3) comprises: At least one pair of bearing wheels (301) is arranged on the lower side of the base plate (5) and is respectively adjacent to two ends of the base plate (5), and is suitable for clamping and limiting in the lateral direction of the external track.

4. The rail vehicle according to claim 3, characterized in that: The load-bearing wheel (301) comprises a hard wheel body and a load-bearing base, wherein the load-bearing base is respectively connected to the hard wheel body and the base plate (5) and is suitable for horizontal circumferential movement under the action of external force, and the hard wheel body is movably connected to the external track in a limiting manner.

5. The rail vehicle according to any one of claims 2 to 4, characterized in that: The regulating structure (4) comprises: The guide assembly comprises a guide fitting and a guide member which are movably connected and are respectively arranged on the base plate (5) and the carrier plate (1). The direction of movement of the load wheel group (3) along the external track is assumed to be the travel direction. The length direction of the guide member is arranged perpendicular to the travel direction. The guide fitting is adapted to move along the length direction of the guide member under the action of an external force. The locking member is arranged on the guide fitting member or the guide member, and has a locking state for locking the relative movement of the guide fitting member and the guide member, and an active state for unlocking the relative movement of the guide fitting member and the guide member.

6. The rail vehicle according to claim 5, characterized in that: The guide member is provided in the form of a long hole, and the guide matching member is provided in the form of a limiting protrusion; or, the guide member is provided in the form of a limiting protrusion, and the guide matching member is provided in the form of a long hole.

7. The rail vehicle according to any one of claims 1 to 4 and 6, characterized in that: Also includes: A pulling structure (6), arranged on the side of the bearing plate (1), suitable for being detachably connected to the lifting body; and / or, A driving assembly (7) is arranged on the bearing plate (1) and is suitable for driving the load wheel set (3) to move relative to the outer track.

8. The rail vehicle according to claim 7, characterized in that: The driving assembly (7) comprises: A driving member connected to the load wheel set (3) and adapted to drive the load wheel set (3) to move along the outer track; The control member is connected to the driving member for communication and is suitable for adjusting the start and stop of the driving member.

9. The rail vehicle according to claim 7, characterized in that: Also includes: A brake structure is communicatively connected to the drive assembly (7) and is suitable for braking the load wheel set (3).

10. A lifting device, characterized in that: include: Lifting the main body; An external track is arranged in the circumference of the hoisting body; The rail vehicle according to any one of claims 1 to 9 is movably connected to the outer rail, suitable for carrying a counterweight (2) and moving along the outer rail under the action of an external force.

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