Crane assembly and transfer trolley

Abstract

The utility model provides a crane assembly and a transfer trolley, and the crane assembly comprises a stand column, a lifting device and a lifting device, the suspension arm is horizontally arranged and comprises a large arm and a small arm, the first end of the large arm is pivotally connected with the stand column, and the second end of the large arm is pivotally connected with the first end of the small arm; the lifting hook assembly comprises a hook part arranged at the second end of the small arm in a liftable mode and a driving device for driving the hook part to ascend and descend. By the adoption of the technical scheme, the problem that in the prior art, the object lifting range of a crane assembly is limited can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering equipment, and in particular to a crane assembly and a transfer vehicle. Background Art

[0002] Cranes, as essential lifting equipment, are used in a variety of fields, including construction and cargo transportation, to lift and move a wide variety of objects. The crane's boom is one of its core components, responsible for lifting and moving objects from one location to another. However, in certain scenarios, the crane's boom's lifting range is limited, primarily due to factors such as its structural design and the operating environment.

[0003] First, from the perspective of boom structure design, booms can be categorized into various types, such as fixed-length and telescopic. These different boom types differ in length, reach, and working range. For example, a fixed-length boom has a fixed length and cannot be adjusted as needed, resulting in a relatively limited lifting range. While telescopic booms can be extended and retracted to change length, their reach may still be limited in certain tight or confined working environments.

[0004] In addition, the working environment will also affect the lifting range of the crane. For example, in a narrow space or restricted site, the operation of the crane may be restricted, resulting in the boom being unable to fully extend or adjust the angle, thus affecting the lifting range.

[0005] In summary, the boom of the crane in the prior art has a small range for lifting objects, and the performance and adaptability of the crane are poor. Utility Model Content

[0006] The main purpose of the utility model is to provide a crane assembly and a transfer vehicle to solve the problem in the prior art that the range of lifting objects by the crane assembly is limited.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a crane assembly is provided, including: a column; a boom, which is horizontally arranged, the boom including a boom and a jib, the first end of the boom is pivotally connected to the column, and the second end of the boom is pivotally connected to the first end of the jib; a hook assembly, including a hook portion that is liftably arranged at the second end of the jib and a driving device for driving the hook portion to rise and fall.

[0008] In one embodiment, the crane assembly also includes: a limiting structure, including a first limiting protrusion arranged on the boom and a second limiting protrusion arranged on the column, the boom has a limiting position and a free rotation position, when the boom is in the limiting position, the second limiting protrusion stops the first limiting protrusion, when the boom is in the free rotation position, the second limiting protrusion and the first limiting protrusion do not interfere with each other.

[0009] In one embodiment, the column includes a column body and a mounting column located at the upper end of the column body, the first end of the upper arm is sleeved on the mounting column, the second limiting protrusion is arranged on the upper end of the side surface of the column body, the first limiting protrusion is arranged on the lower surface of the upper arm, and the lower surface of the first limiting protrusion is lower than the upper surface of the second limiting protrusion.

[0010] In one embodiment, a vertically arranged sleeve is provided at the second end of the upper arm, a C-shaped mounting seat and a rotating shaft passing through an opening of the C-shaped mounting seat are provided at the first end of the lower arm, and the sleeve is sleeved on the rotating shaft.

[0011] In one embodiment, the driving device includes an electric winch, the wire rope of the electric winch is connected to the hook, and the crane assembly also includes: a limit plate, which is arranged at one end of the wire rope close to the hook; a limit sensor, which is arranged at the second end of the forearm and located above the limit plate, and the electric winch operates according to the electrical signal of the limit sensor.

[0012] In one embodiment, the column includes a lower column section and an upper column section hinged to each other, and the upper column section and the lower column section are detachably connected by fasteners.

[0013] In one embodiment, the upper column section and the lower column section are connected by a hinge, the fastener comprises a clamp, and the clamp and the hinge are arranged on opposite sides of the column.

[0014] In one embodiment, the fastener further includes a detachable pin located between the hinge and the clamp in the circumferential direction of the column.

[0015] According to another aspect of the present invention, a transfer vehicle is provided, comprising: a vehicle body having a silo for accommodating stone materials; and a crane assembly disposed on the vehicle body, the crane assembly being the above-mentioned crane assembly.

[0016] In one embodiment, the crane assembly is disposed at the rear of the vehicle body, and the transfer vehicle further comprises: a counterweight block disposed at the front of the vehicle body.

[0017] By applying the technical solution of the present invention, the boom is subdivided into a rotatable boom and arm. This segmented design enables the crane to achieve more flexible and precise lifting operations through the relative rotation of the boom and arm while maintaining a compact overall structure. The boom can rotate around its connection point with the column within a certain range, while the arm can continue to rotate at the end of the boom. This dual rotation mechanism further increases the spatial range of the crane to lift objects, allowing the crane assembly to lift bricks closer to the column. In summary, the application of the technical solution of the present invention has the following four advantages: First, through the coordinated action of the column, boom and arm, this design enables the crane to cover a wider operating area, meeting the needs of complex and changing working environments. Second, the segmented swivel boom design enables the crane to be positioned more accurately above the target object, and it can operate flexibly even in narrow or crowded spaces. Third, due to the expansion of the operating range and the improvement of operational flexibility, the crane can complete the lifting task more quickly, reducing operating time and labor costs. Fourth, this design is suitable for a variety of operating scenarios, such as construction sites and warehouses, and has strong versatility and adaptability.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a crane assembly according to the present utility model is shown;

[0021] Figure 2 Shown Figure 1 An enlarged structural diagram of the crane assembly at F;

[0022] Figure 3 Shown Figure 1 An enlarged structural diagram of the crane assembly at G;

[0023] Figure 4 Shown Figure 1 A bottom view schematic diagram of a crane assembly;

[0024] Figure 5 Shown Figure 4 A schematic cross-sectional view of the crane assembly in the HH direction;

[0025] Figure 6A schematic diagram of the three-dimensional structure of the transfer vehicle according to the present invention is shown at one angle; and

[0026] Figure 7 Shown Figure 6 Schematic diagram of the three-dimensional structure of the transfer vehicle from another angle.

[0027] The above drawings include the following reference numerals:

[0028] 70. Column; 71. Column body; 711. Lower column section; 712. Upper column section; 713. Fastener; 7131. Clamp; 7132. Removable pin; 714. Hinge; 715. Wire outlet; 716. Wire clamping structure; 72. Mounting column; 80. Boom; 81. Upper arm; 811. Sleeve; 82. Lower arm; 821. C-type mounting seat; 822. Rotating shaft; 90. Hook assembly; 91. Hook; 92. Drive unit; 921. Wire rope; 100. Limiting structure; 101. First limiting protrusion; 102. Second limiting protrusion; 110. Limiting plate; 119. Center column; 120. Limiting sensor; 200. Vehicle body; 201. Silo; 210. Crane assembly; 220. Counterweight. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] like Figures 1 to 7 As shown, in this embodiment, the crane assembly includes: a column 70, a boom 80, and a hook assembly 90. The boom 80 is arranged horizontally and includes a boom 81 and an arm 82. The first end of the boom 81 is pivotally connected to the column 70, and the second end of the boom 81 is pivotally connected to the first end of the arm 82. The hook assembly 90 includes a hook portion 91 that is arbitrarily arranged at the second end of the arm 82 and a drive device 92 that drives the hook portion 91 to move up and down.

[0034] By applying the technical solution of this embodiment, the boom 80 is subdivided into a rotatable boom 81 and a small arm 82. This segmented design enables the crane to achieve more flexible and precise lifting operations through the relative rotation of the boom 81 and the small arm 82 while maintaining a compact overall structure. The boom 81 can rotate around its connection point with the column 70 within a certain range, while the small arm 82 can continue to rotate at the end of the boom 81. This dual rotation mechanism further increases the spatial range of the crane to lift objects, allowing the crane assembly to lift bricks closer to the column 70. In summary, the technical solution of this embodiment has the following four advantages: First, through the coordinated action of the column 70, the boom 81 and the small arm 82, this design enables the crane to cover a wider operating area and meet the needs of complex and changing working environments. Second, the segmented rotatable boom design enables the crane to be positioned more accurately above the target object, and it can operate flexibly even in narrow or crowded spaces. Third, due to the expanded operating range and improved operational flexibility, the crane can complete lifting tasks more quickly, reducing operation time and labor costs. Fourth, the design is suitable for a variety of operating scenarios, such as construction sites and warehouses, and has strong versatility and adaptability.

[0035] like Figure 1 、 Figure 2 and Figure 5As shown, in this embodiment, the crane assembly also includes a limiting structure 100, which includes a first limiting protrusion 101 provided on the boom 81 and a second limiting protrusion 102 provided on the column 70. The boom 81 has a limiting position and a free rotation position. When the boom 81 is in the limiting position, the second limiting protrusion 102 stops the first limiting protrusion 101. When the boom 81 is in the free rotation position, the second limiting protrusion 102 and the first limiting protrusion 101 do not interfere with each other. The above structure allows the boom 81 to rotate less than 360 degrees relative to the column 70, thereby preventing the cables of the drive device 92 from being excessively twisted and the occurrence of twisted cables. Preferably, in this embodiment, the boom 81 rotates less than 350 degrees relative to the column 70.

[0036] like Figure 1 、 Figure 2 and Figure 5 As shown, in this embodiment, the column 70 includes a column body 71 and a mounting post 72 located at the upper end of the column body 71. The first end of the arm 81 is sleeved on the mounting post 72. The second limiting protrusion 102 is provided at the upper end of the side surface of the column body 71. The first limiting protrusion 101 is provided on the lower surface of the arm 81, and the lower surface of the first limiting protrusion 101 is lower than the upper surface of the second limiting protrusion 102. The above structure adopts a hard limiting method, which is simple in structure and easy to implement. Of course, in other embodiments not shown in the figures, the limiting method is not limited to hard limiting, and the purpose of limiting can also be achieved by electrical limiting, hydraulic limiting or pneumatic limiting.

[0037] like Figure 1 and Figure 5 As shown, in this embodiment, a vertically arranged sleeve 811 is provided at the second end of the upper arm 81, a C-shaped mounting seat 821 and a rotating shaft 822 extending through the opening of the C-shaped mounting seat 821 are provided at the first end of the lower arm 82, and the sleeve 811 is sleeved on the rotating shaft 822. The above structure is simple, easy to install, and highly reliable.

[0038] like Figure 1 、 Figures 4 to 7 As shown, in this embodiment, the driving device 92 includes an electric winch, and the steel wire rope 921 of the electric winch is connected to the hook portion 91. The crane assembly also includes: a limit plate 110 and a limit sensor 120. Among them, the limit plate 110 is arranged at one end of the steel wire rope 921 close to the hook portion 91. The limit sensor 120 is arranged at the second end of the arm 82 and is located above the limit plate 110. The electric winch operates according to the electrical signal of the limit sensor 120. Specifically, when the hoisted brick material reaches a certain height, the limit plate 110 contacts the limit sensor 120, and the limit sensor 120 sends an in-position signal to the outside. According to the in-position signal, the electric winch is controlled to stop winding to prevent damage to the hook assembly 90.

[0039] Preferably, if Figure 5 As shown, in this embodiment, the limiting plate 110 further includes a central column 119, and the central column 119 and the steel wire rope 921 are fastened together by a clamp. The above structure is simple and easy to install.

[0040] More preferably, Figure 4 and Figure 6 As shown, the limiting plate 110 includes a limiting piece, and the limiting piece is provided with an installation slot extending from the edge of the limiting piece to the center, and the steel wire rope 921 is passed through the installation slot. The above structure is simple and easy to install.

[0041] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, in this embodiment, the column 70 includes a lower column section 711 and an upper column section 712 that are hinged to each other. The upper column section 712 and the lower column section 711 are detachably connected by fasteners 713. When the crane assembly is not in operation, the fasteners 713 can be operated to fold the upper column section 712 and the lower column section 711, thereby reducing the height of the crane assembly and facilitating transportation and storage.

[0042] like Figure 3 and Figure 5 As shown, in this embodiment, the upper column section 712 is connected to the lower column section 711 by a hinge 714, and the fastener 713 includes a clamp 7131. The clamp 7131 and the hinge 714 are arranged on opposite sides of the column 70. The above structure ensures that the upper column section 712 and the lower column section 711 are connected and fastened.

[0043] like Figure 3 As shown, in this embodiment, the fastener 713 further includes a detachable pin 7132, which is located between the hinge 714 and the clamp 7131 in the circumferential direction of the column 70. The above structure provides connecting members around the upper column section 712 and the lower column section 711, thereby further tightening the connection between the upper column section 712 and the lower column section 711.

[0044] Preferably, if Figure 1 and Figure 3 As shown, in this embodiment, the lower column section 711 has a cable passageway, and the upper end of the side wall of the lower column section 711 has a cable outlet 715 connected to the cable passageway. The side wall of the upper column section 712 has a cable retaining structure 716. This structure allows the cables of the drive device 92 to be more concealed within the column 70, ensuring the service life of the cables. At the same time, the exposed cables can be restrained in a predetermined position to prevent them from moving around.

[0045] like Figure 6 and Figure 7As shown, the present application also provides a transfer vehicle. According to an embodiment of the transfer vehicle of the present application, the transfer vehicle includes: a vehicle body 200 and a crane assembly 210. The vehicle body 200 includes a silo 201 for storing stone materials. The crane assembly 210 is mounted on the vehicle body 200 and is the aforementioned crane assembly. Because the aforementioned crane assembly has advantages such as a large operating area, flexible operation, and a wide range of application scenarios, a transfer vehicle incorporating the crane assembly also possesses the aforementioned advantages.

[0046] Specifically, if Figure 6 and Figure 7 As shown, in this embodiment, the crane assembly 210 can lift bricks from the brick stack into the silo 201, and then the bricks in the silo 201 are transferred to the brick laying equipment by the transfer vehicle for brick laying operation. This eliminates the need for manual lifting of bricks, reducing the labor intensity of the workers.

[0047] like Figure 6 and Figure 7 As shown, in this embodiment, the crane assembly 210 is disposed at the rear of the vehicle body 200, and the transfer vehicle further includes a counterweight 220 disposed at the front of the vehicle body 200. The above structure ensures that the center of gravity of the transfer vehicle remains on the chassis of the vehicle body 200 when lifting bricks, thereby preventing the transfer vehicle from overturning.

[0048] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A crane assembly, characterized in that: include: Column (70); A boom (80) is arranged horizontally, and the boom (80) includes a large arm (81) and a small arm (82), wherein a first end of the large arm (81) is pivotally connected to the column (70), and a second end of the large arm (81) is pivotally connected to a first end of the small arm (82); The hook assembly (90) comprises a hook portion (91) which is movably arranged at the second end of the small arm (82) and a driving device (92) for driving the hook portion (91) to move upward and downward.

2. The crane assembly according to claim 1, wherein: The crane assembly further comprises: The limiting structure (100) comprises a first limiting protrusion (101) provided on the upper arm (81) and a second limiting protrusion (102) provided on the column (70); the upper arm (81) has a limiting position and a free rotation position; when the upper arm (81) is located at the limiting position, the second limiting protrusion (102) stops the first limiting protrusion (101); when the upper arm (81) is located at the free rotation position, the second limiting protrusion (102) and the first limiting protrusion (101) do not interfere with each other.

3. The crane assembly according to claim 2, wherein: The column (70) includes a column body (71) and a mounting column (72) located at the upper end of the column body (71); the first end of the upper arm (81) is sleeved on the mounting column (72); the second limiting protrusion (102) is arranged on the upper end of the side surface of the column body (71); the first limiting protrusion (101) is arranged on the lower surface of the upper arm (81), and the lower surface of the first limiting protrusion (101) is lower than the upper surface of the second limiting protrusion (102).

4. The crane assembly according to claim 1, wherein: The second end of the upper arm (81) is provided with a vertically arranged sleeve (811), the first end of the lower arm (82) is provided with a C-shaped mounting seat (821) and a rotating shaft (822) passing through an opening of the C-shaped mounting seat (821), and the sleeve (811) is sleeved on the rotating shaft (822).

5. The crane assembly according to claim 1, wherein: The driving device (92) includes an electric winch, a steel wire rope (921) of the electric winch is connected to the hook (91), and the crane assembly further includes: a limiting plate (110) provided at one end of the steel wire rope (921) close to the hook portion (91); A limit sensor (120) is provided at the second end of the small arm (82) and is located above the limit plate (110), and the electric winch operates according to an electrical signal from the limit sensor (120).

6. The crane assembly according to claim 1, wherein: The column (70) comprises a lower column section (711) and an upper column section (712) which are hinged to each other, and the upper column section (712) is detachably connected to the lower column section (711) via a fastener (713).

7. The crane assembly according to claim 6, wherein: The upper column section (712) and the lower column section (711) are connected via a hinge (714), and the fastener (713) includes a clamp (7131), and the clamp (7131) and the hinge (714) are arranged on opposite sides of the column (70).

8. The crane assembly according to claim 7, wherein: The fastener (713) further includes a detachable pin (7132), and the detachable pin (7132) is located between the hinge (714) and the clamp (7131) in the circumferential direction of the column (70).

9. A transfer vehicle comprising: The vehicle body (200) has a silo (201) for accommodating stones; A crane assembly (210) is provided on the vehicle body (200), wherein the crane assembly (210) is the crane assembly according to any one of claims 1 to 8.

10. The transfer vehicle according to claim 9, characterized in that: The crane assembly (210) is arranged at the rear of the vehicle body (200), and the transfer vehicle further comprises: A counterweight (220) is provided at the front of the vehicle body (200).

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