Cantilever crane structure and charging trolley comprising same

Abstract

The utility model relates to the technical field of charging mechanical equipment, in particular to an arm support structure and a charging trolley comprising the arm support structure, the arm support structure comprises a slewing mechanism, an arm support pitching mechanism, an arm support telescoping mechanism and an arm support folding mechanism; the arm support pitching mechanism comprises an upper supporting frame, a lower supporting frame and a first driving part, the upper supporting frame and the lower supporting frame form a hollow frame structure, and the medicine tube winding drum is arranged in the hollow frame structure and connected with the upper supporting frame. According to the utility model, the boom telescopic mechanism and the boom folding mechanism are arranged, so that when the charging trolley stops charging operation and needs to run, the telescopic boom is retracted, and the folding boom is folded, so that the size of the whole machine is reduced, rotation adjustment is facilitated, and the requirements of small roadways are met; the explosive tube winding drum is arranged in the hollow frame structure of the cantilever crane pitching mechanism, so that the space can be utilized to the maximum extent, and the size of the whole machine is reduced.

Description

Technical Field

[0001] This utility model relates to the field of loading machinery and equipment, specifically to a boom structure and a loading trolley containing the boom structure. Background Technology

[0002] In blasting operations such as mining, tunnel excavation, and tunnel engineering, drill-and-blast methods are commonly used. Currently, charging vehicles are increasingly replacing manual charging for blasting operations. The boom of the charging vehicle, which carries the guide tubes to the blast hole, is a crucial component. Existing charging vehicles typically have telescopic booms, which are relatively long, inconvenient to rotate, and unsuitable for operations in small tunnels.

[0003] Based on the above, there is an urgent need to provide a boom structure and a loading trolley containing the boom structure to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a boom structure and a loading trolley containing the boom structure, the specific technical solution of which is as follows:

[0005] A boom structure includes a slewing mechanism, a boom pitching mechanism, a boom telescopic mechanism, and a boom folding mechanism; the boom pitching mechanism is mounted on the slewing mechanism, the boom telescopic mechanism is mounted on the boom pitching mechanism, the boom folding mechanism is connected to the boom telescopic mechanism, and the free end of the boom folding mechanism is connected to a hole-connecting mechanism.

[0006] The boom pitching mechanism includes an upper support frame, a lower support frame, and a drive component. The lower support frame is mounted on the slewing mechanism, and the upper support frame is hinged to the lower support frame. The drive component is mounted on the slewing mechanism and connected to the upper support frame.

[0007] The upper support frame and the lower support frame form a hollow frame structure, and the medicine tube reel is set inside the hollow frame structure and connected to the upper support frame.

[0008] Furthermore, the lower support frame includes two sets of support rods arranged opposite each other, and the upper support frame includes two sets of V-shaped support frames arranged opposite each other. The V-shaped support frames are hinged to the support rods; the two sets of support rods and the two sets of V-shaped support frames cooperate to form a hollow frame structure.

[0009] Furthermore, mounting seats are provided on the two sets of V-shaped support frames, and the medicine tube reel is mounted on the mounting seats.

[0010] Furthermore, the boom telescopic mechanism includes a telescopic boom and a second driving component. The telescopic boom is mounted on the upper support frame. The telescopic boom includes nested multi-stage sleeves. The second driving component is mounted inside the sleeves and connected to the adjacent next-stage sleeve. A slider is provided between adjacent sleeves.

[0011] Furthermore, the boom folding mechanism includes a folding arm, a linkage structure, and a driving component three. The linkage structure is hinged to the boom telescopic mechanism, the folding arm is hinged to the linkage structure, and the driving component three connects the folding arm and the linkage structure to drive the folding arm to perform a folding action.

[0012] Furthermore, the linkage structure includes a first linkage arm and a second linkage arm. The first linkage arm is hinged to the last stage sleeve, and the first linkage arm and the second linkage arm are hinged together by a hinge shaft. The second linkage arm is hinged to a folding arm.

[0013] The fixed end of the driving component three is hinged to the folding arm, and the telescopic end of the driving component three is hinged to the hinge shaft.

[0014] Furthermore, it also includes a guide structure, which connects the medicine tube reel and the hole alignment mechanism; the guide structure includes a guide steel pipe one and a guide steel pipe two, the guide steel pipe one is set on the boom telescopic mechanism, and the guide steel pipe two is set on the boom folding mechanism.

[0015] Furthermore, the guide steel pipe includes multiple nested steel pipes, and the guide steel pipe can extend and retract with the boom telescopic mechanism.

[0016] Furthermore, the guide steel pipe is provided with rotating shafts at both ends.

[0017] A loading trolley includes a loading trolley body and a boom structure as described above, wherein the boom structure is disposed on the loading trolley body.

[0018] The application of the technical solution of this utility model has the following beneficial effects:

[0019] (1) This utility model provides a boom structure, including a slewing mechanism, a boom pitching mechanism, a boom telescopic mechanism, and a boom folding mechanism; the boom pitching mechanism is disposed on the slewing mechanism, the boom telescopic mechanism is disposed on the boom pitching mechanism, the boom folding mechanism is connected to the boom telescopic mechanism, and the free end of the boom folding mechanism is connected to a hole-fitting mechanism; the boom pitching mechanism includes an upper support frame, a lower support frame, and a drive component, the lower support frame is disposed on the slewing mechanism, the upper support frame is hinged to the lower support frame, and the drive component is disposed on the slewing mechanism and connected to the upper support frame; the upper support frame and the lower support frame form a hollow frame structure, and the medicine tube reel is disposed in the hollow frame structure and connected to the upper support frame. In this invention, by setting up a boom telescopic mechanism and a boom folding mechanism, the folding arm can be unfolded and the telescopic arm extended during the loading operation, increasing the working range and meeting the loading operation requirements; when the loading trolley stops loading and needs to move, the telescopic arm can be retracted and the folding arm can be folded, reducing the overall size of the machine, facilitating rotation adjustment, and meeting the needs of small roadways; by setting the medicine tube drum in the hollow frame structure of the boom pitching mechanism, space can be utilized to the maximum extent and the overall size of the machine can be reduced.

[0020] (2) In this utility model, a guide structure is set to guide and protect the delivery of the medicine tube, so as to avoid the medicine tube from bending due to pressure during the delivery process.

[0021] (3) In this utility model, the two ends of the guide steel pipe are rotatably connected to the medicine tube drum and the telescopic arm respectively through the rotating shaft, so that the guide steel pipe can rotate with the change of the position of the medicine tube, thus meeting the need for smooth delivery of the medicine tube.

[0022] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the boom structure in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the boom pitching mechanism in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of a medicine tube reel;

[0027] Figure 4This is a schematic diagram of the boom folding mechanism;

[0028] Figure 5 This is a schematic diagram of guide steel pipe one;

[0029] Figure 6 This is a schematic diagram of the boom structure in a folded state;

[0030] Among them, 1. Slewing mechanism, 2. Boom pitching mechanism, 2.1 Upper support frame, 2.2 Lower support frame, 2.3 Drive component one, 2.4 Mounting seat, 3. Boom telescopic mechanism, 3.1 Telescopic boom, 3.2 Slewing seat one, 4. Boom folding mechanism, 4.1 Folding boom, 4.2 Linkage structure, 4.2.1 Linkage arm one, 4.2.2 Linkage arm two, 4.2.3 Hinge shaft, 4.3 Drive component three, 4.4 Hydraulic cylinder mounting seat, 5. Hole alignment mechanism, 6. Drug reel drum, 6.1 Drum mounting seat, 6.2 Slewing seat two, 7. Guide structure, 7.1 Guide steel pipe one, 7.1.1 Rotating shaft, 7.2 Guide steel pipe two. Detailed Implementation

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] Example

[0035] See Figure 1This embodiment provides a boom structure, including a slewing mechanism 1, a boom pitching mechanism 2, a boom telescopic mechanism 3, and a boom folding mechanism 4; the boom pitching mechanism 2 is disposed on the slewing mechanism 1, the boom telescopic mechanism 3 is disposed on the boom pitching mechanism 2, the boom folding mechanism 4 is connected to the boom telescopic mechanism 3, and the free end of the boom folding mechanism 4 is connected to a hole-connecting mechanism 5.

[0036] The slewing mechanism 1 is mounted on the loading trolley body and is used to realize the rotation of the entire boom structure relative to the loading trolley body. The slewing mechanism 1 uses a slewing bearing and is driven by a hydraulic motor to achieve the slewing action.

[0037] See Figure 2 The boom pitching mechanism 2 includes an upper support frame 2.1, a lower support frame 2.2, and a drive component 2.3. The lower support frame 2.2 is mounted on the slewing mechanism 1, and the upper support frame 2.1 is hinged to the lower support frame 2.2. The drive component 2.3 is mounted on the slewing mechanism 1 and connected to the upper support frame 2.1. The drive component 2.3 drives the upper support frame 2.1 to pitch relative to the lower support frame 2.2.

[0038] See Figures 1-3 The upper support frame 2.1 and the lower support frame 2.2 form a hollow frame structure. The medicine tube reel 6 is set inside the hollow frame structure and connected to the upper support frame 2.1. The medicine tube reel 6 moves in pitch along with the upper support frame 2.1.

[0039] Specifically, the lower support frame 2.2 includes two sets of support rods arranged opposite each other, and the upper support frame 2.1 includes two sets of V-shaped support frames arranged opposite each other. The V-shaped support frames and the support rods are hinged together by a hinge shaft. The two sets of support rods and the two sets of V-shaped support frames cooperate to form a hollow frame structure.

[0040] See Figure 2 and Figure 3 Two sets of V-shaped support frames are equipped with mounting bases 2.4, and the medicine tube reel 6 is equipped with a medicine tube reel mounting base 6.1. The medicine tube reel mounting base 6.1 is connected to the mounting base 2.4 by bolts.

[0041] In this embodiment, the medicine tube reel 6 is placed in the hollow frame structure of the boom pitching mechanism 2, which can maximize the use of space and reduce the overall size of the machine.

[0042] In this embodiment, the boom telescopic mechanism 3 includes a telescopic boom 3.1 and a second drive component. The telescopic boom 3.1 is mounted on the upper support frame 2.1. (See attached image) Figure 1 and Figure 2Two sets of V-shaped support frames are equipped with fixed seats, and the telescopic arm 3.1 is fixed to the fixed seats by bolts; the telescopic arm 3.1 includes nested multi-stage sleeves, and the driving component is set inside the sleeve and connected to the adjacent next-stage sleeve; a slider is provided between adjacent two-stage sleeves to reduce the sliding resistance between adjacent two-stage sleeves.

[0043] In this embodiment, a two-stage sleeve structure is used as an example. The first-stage sleeve is fixed to the fixed base, and the second-stage sleeve is nested inside the first-stage sleeve. The fixed end of the second driving component is located inside the first-stage sleeve, and the telescopic end of the second driving component is connected to the second-stage sleeve. The telescopic movement of the second driving component drives the second-stage sleeve to perform telescopic actions. The extended end of the second-stage sleeve is provided with a hinged interface for connecting the boom folding mechanism 4.

[0044] See Figure 4 In this embodiment, the boom folding mechanism 4 includes a folding arm 4.1, a connecting rod structure 4.2, and a driving component 4.3. The connecting rod structure 4.2 is hinged to the hinge interface of the extended end of the secondary sleeve. The folding arm 4.1 is hinged to the connecting rod structure 4.2. The driving component 4.3 connects the folding arm 4.1 and the connecting rod structure 4.2 and is used to drive the folding arm 4.1 to perform a folding action.

[0045] Specifically, the linkage structure 4.2 includes a first linkage arm 4.2.1 and a second linkage arm 4.2.2. The first end of the first linkage arm 4.2.1 is hinged to the hinge interface of the extended end of the secondary sleeve. The second end of the first linkage arm 4.2.1 is hinged to the first end of the second linkage arm 4.2.2 via a hinge shaft 4.2.3. The second end of the second linkage arm 4.2.2 is hinged to the first end of the folding arm 4.1. A cylinder mounting seat 4.4 is provided on the lower side of the second end of the folding arm 4.1. The fixed end of the third driving component 4.3 is hinged to the cylinder mounting seat 4.4, and the telescopic end of the third driving component 4.3 is hinged to the hinge shaft 4.2.3. The folding action of the folding arm 4.1 is achieved by the telescopic movement of the third driving component 4.3. The folded state of the folding arm 4.1 is shown in the figure. Figure 6 .

[0046] In this embodiment, drive component 1 (2.3), drive component 2, and drive component 3 (4.3) are preferably drive cylinders.

[0047] In this embodiment, by setting up a boom telescopic mechanism 3 and a boom folding mechanism 4, the folding arm 4.1 is unfolded and the telescopic arm 3.1 is extended when the charging trolley is charging, increasing the working range and meeting the operational requirements; when the charging trolley stops charging and needs to move, the telescopic arm 3.1 is retracted and the folding arm 4.1 is folded, which reduces the overall size of the machine, facilitates rotation adjustment, and is suitable for the needs of small roadways.

[0048] In this implementation, see Figure 1 , Figure 5 and Figure 6 The boom structure also includes a guide structure 7, which connects the medicine tube reel 6 and the alignment mechanism 5. The guide structure 7 guides and protects the medicine tube during transport, preventing it from bending due to pressure. The guide structure 7 includes a guide steel pipe 7.1 and a guide steel pipe 7.2. The guide steel pipe 7.1 is mounted on the boom telescopic mechanism 3. Specifically, both ends of the guide steel pipe 7.1 are equipped with rotating shafts 7.1.1. One end of the guide steel pipe 7.1 is rotatably connected to the rotary seat 6.2 on the medicine tube reel 6 via the rotating shaft 7.1.1, and the other end of the guide steel pipe 7.1 is rotatably connected to the rotary seat 3.2 located on the lower side of the extended end of the secondary sleeve via the rotating shaft 7.1.1. The position of the medicine tube wound on the medicine tube reel 6 changes during transport, and the guide steel pipe 7.1 can rotate with the change in the position of the medicine tube to meet the requirement of smooth transport of the medicine tube.

[0049] In this embodiment, preferably, the guide steel pipe 7.1 includes multiple nested steel pipes, and the guide steel pipe 7.1 can extend and retract with the boom telescopic mechanism 3; a slider is provided between two adjacent layers of steel pipes.

[0050] The second guide steel pipe 7.2 is located below the boom folding mechanism 4, with one end aligned with the first guide steel pipe 7.1 and the other end connected to the hole-aligning mechanism 5; the second guide steel pipe 7.2 is not directly connected to the first guide steel pipe 7.1, and the second guide steel pipe 7.2 folds with the folding arm 4.1.

[0051] This embodiment also provides a charging trolley, including a charging trolley body and a boom structure as described above, wherein the boom structure is mounted on the charging trolley body. The charging trolley provided in this embodiment meets the requirements of charging operations while reducing the overall size of the vehicle, thus meeting the needs of small roadways.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A boom structure, characterized in that, It includes a slewing mechanism (1), a boom pitching mechanism (2), a boom telescopic mechanism (3), and a boom folding mechanism (4); the boom pitching mechanism (2) is mounted on the slewing mechanism (1), the boom telescopic mechanism (3) is mounted on the boom pitching mechanism (2), the boom folding mechanism (4) is connected to the boom telescopic mechanism (3), and the free end of the boom folding mechanism (4) is connected to a hole-connecting mechanism (5); The boom pitching mechanism (2) includes an upper support frame (2.1), a lower support frame (2.2), and a drive component (2.3). The lower support frame (2.2) is mounted on the slewing mechanism (1), and the upper support frame (2.1) is hinged to the lower support frame (2.2). The drive component (2.3) is mounted on the slewing mechanism (1) and connected to the upper support frame (2.1). The upper support frame (2.1) and the lower support frame (2.2) form a hollow frame structure, and the medicine tube reel (6) is set inside the hollow frame structure and connected to the upper support frame (2.1).

2. The boom structure according to claim 1, characterized in that, The lower support frame (2.2) includes two sets of support rods arranged opposite to each other, and the upper support frame (2.1) includes two sets of V-shaped support frames arranged opposite to each other. The V-shaped support frames are hinged to the support rods. The two sets of support rods and the two sets of V-shaped support frames cooperate to form a hollow frame structure.

3. The boom structure according to claim 2, characterized in that, Mounting seats (2.4) are provided on the two sets of V-shaped support frames, and the medicine tube reel (6) is mounted on the mounting seats (2.4).

4. The boom structure according to claim 1, characterized in that, The boom telescopic mechanism (3) includes a telescopic boom (3.1) and a second drive component. The telescopic boom (3.1) is mounted on the upper support frame (2.1). The telescopic boom (3.1) includes nested multi-stage sleeves. The second drive component is mounted inside the sleeve and connected to the adjacent next-level sleeve. A slider is provided between adjacent two-stage sleeves.

5. The boom structure according to claim 4, characterized in that, The boom folding mechanism (4) includes a folding arm (4.1), a connecting rod structure (4.2), and a driving component (4.3). The connecting rod structure (4.2) is hinged to the boom telescopic mechanism (3), the folding arm (4.1) is hinged to the connecting rod structure (4.2), and the driving component (4.3) connects the folding arm (4.1) and the connecting rod structure (4.2) to drive the folding arm (4.1) to perform a folding action.

6. The boom structure according to claim 5, characterized in that, The linkage structure (4.2) includes a first linkage arm (4.2.1) and a second linkage arm (4.2.2). The first linkage arm (4.2.1) is hinged to the last stage sleeve. The first linkage arm (4.2.1) and the second linkage arm (4.2.2) are hinged together by a hinge shaft (4.2.3). The second linkage arm (4.2.2) is hinged to the folding arm (4.1). The fixed end of the driving component three (4.3) is hinged to the folding arm (4.1), and the telescopic end of the driving component three (4.3) is hinged to the hinge shaft (4.2.3).

7. The boom structure according to any one of claims 1-6, characterized in that, It also includes a guide structure (7), which connects the medicine tube reel (6) and the hole-aligning mechanism (5); the guide structure (7) includes a guide steel pipe one (7.1) and a guide steel pipe two (7.2), the guide steel pipe one (7.1) is mounted on the boom telescopic mechanism (3), and the guide steel pipe two (7.2) is mounted on the boom folding mechanism (4).

8. The boom structure according to claim 7, characterized in that, The guide steel pipe (7.1) includes multiple nested steel pipes, and the guide steel pipe (7.1) can extend and retract with the boom telescopic mechanism (3).

9. The boom structure according to claim 7, characterized in that, The guide steel pipe (7.1) is provided with a rotating shaft (7.1.1) at both ends.

10. A loading trolley, characterized in that, It includes a loading trolley body and a boom structure as described in any one of claims 1-9, wherein the boom structure is disposed on the loading trolley body.

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