Mining simple miniature crane

Abstract

The utility model relates to the technical field of cranes, and discloses a simple mining miniature crane, which comprises a base, a positioning component, an oblique beam and a hydraulic cylinder. According to the scheme, the supporting arm is rotated to the posture extending in the first direction by rotating the supporting arm, the positioning assembly is controlled to be kept in the first state, and the supporting arm can stably keep the current posture; after the hydraulic cylinder is started, the telescopic rod of the hydraulic cylinder stretches out or retracts back to drive the lifting end of the lifting arm to ascend or descend, and the purpose of lifting is achieved. The positioning assembly is controlled to retract into the supporting arm, the supporting arm is rotated with the hinged shaft between the supporting arm and the base as a rotating shaft, the supporting arm can be made to rotate in the third direction, the lifting arm is made to incline by starting the hydraulic cylinder, at the moment, the base can still be moved through the four universal wheels distributed on the base, and the containing space needed by the hoisting instrument in a well is reduced; and the space required to be occupied by the hoisting apparatus during underground movement is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a simple micro crane for mining. Background Art

[0002] There are a lot of lifting operations in the coal industry, but the cranes in the existing technology are large in size and are not suitable for lifting operations in the limited space underground. Utility Model Content

[0003] In view of this, the utility model provides a simple micro crane for mining, which can rotate the arm to a posture extending along the first direction by rotating the arm, and control the positioning component to remain in the first state. At this time, the positioning component penetrates the base along the second direction, and the arm hinged to the base is clamped to the base along the first direction. At the same time, the positioning component and the hinged end of the arm work together to make the arm clamped to the base in the vertical direction, and the arm can stably maintain the current posture; after starting the hydraulic cylinder, the extension or retraction of the telescopic rod of the hydraulic cylinder can drive the lifting end of the boom to rise or fall, thereby achieving the purpose of lifting. The positioning assembly is controlled to retract into the support arm so that the positioning assembly remains in the second state. At this time, the support arm and the base remain in a clamped state along the first direction and the second direction. The support arm is rotated with the hinge axis between the support arm and the base as the rotating axis, so that the support arm can be rotated in the third direction. Even if the support arm that was originally in a horizontal posture is rotated to a vertical or inclined posture, the installation space required for the support arm when it is placed horizontally is reduced. At the same time, the boom can also be tilted by starting the hydraulic cylinder to reduce the placement space required when the boom is placed horizontally. At this time, the base can still be moved by the four universal wheels distributed on the base, which reduces the accommodation space required for the lifting equipment underground and reduces the space occupied by the lifting equipment when it moves underground.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A simple micro crane for mining, comprising:

[0006] A base having a plurality of universal wheels, wherein a support arm is hingedly connected to the base for clamping in a first direction and extending out of the base in the first direction, and the support arm is used to rotate in a second direction so that its vertical projection is located within the edge of the base;

[0007] A positioning assembly fixedly connected to the support arm, wherein the positioning assembly has a first state of penetrating the base along the second direction and a second state of being retracted into the support arm;

[0008] an oblique beam fixedly connected to the base and extending in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other;

[0009] A suspension arm, hinged to the top end of the inclined beam and capable of rotating in the third direction, the suspension arm having a suspension end away from the inclined beam and extending in the first direction;

[0010] A hydraulic cylinder is hinged to the inclined beam and to the boom, and a rotation axis of the hydraulic cylinder is parallel to a rotation axis of the boom.

[0011] Preferably, a first rotating shaft for hingedly connecting the base is fixed on the support arm, and the positioning assembly includes a second rotating shaft slidably connected to the support arm along the second direction, and an elastic member located inside the support arm and used to drive the second rotating shaft to extend out of the support arm and pass through the base.

[0012] Preferably, the elastic member comprises a spring fixedly connected to the inside of the support arm.

[0013] Preferably, the top end of the inclined beam extends to above a side of the base facing away from the supporting foot.

[0014] Preferably, the boom is provided with an anti-bending component, and two ends of the anti-bending component are fixedly connected to the boom at both sides of the top end of the piston rod of the hydraulic cylinder.

[0015] Preferably, the base is fixedly connected with a support rod for fixing and supporting the oblique beam, and there are two support rods which are distributed in the shape of triangular pyramid edges with the oblique beam.

[0016] Preferably, a connecting block is hinged at the end of the piston rod of the hydraulic cylinder, and the boom has a plurality of connecting positions distributed along the first direction and used to fix the connecting block.

[0017] Preferably, there are two supporting arms distributed on two opposite sides of the base, and the ends of the two supporting arms away from the base are flared.

[0018] It can be seen from the above technical scheme that the simple micro crane for mining provided by the utility model rotates the arm to a posture extending along the first direction, and controls the positioning component to remain in the first state. At this time, the positioning component penetrates the base along the second direction, and the arm hinged to the base is clamped to the base along the first direction. At the same time, the positioning component and the hinged end of the arm work together to make the arm clamped to the base in the vertical direction, and the arm can stably maintain the current posture; after starting the hydraulic cylinder, the extension or retraction of the telescopic rod of the hydraulic cylinder can drive the lifting end of the boom to rise or fall, thereby achieving the purpose of lifting. The positioning assembly is controlled to retract into the support arm so that the positioning assembly remains in the second state. At this time, the support arm and the base remain in a clamped state along the first direction and the second direction. The support arm is rotated with the hinge axis between the support arm and the base as the rotating axis, so that the support arm can be rotated in the third direction. Even if the support arm that was originally in a horizontal posture is rotated to a vertical or inclined posture, the installation space required for the support arm when it is placed horizontally is reduced. At the same time, the boom can also be tilted by starting the hydraulic cylinder to reduce the placement space required when the boom is placed horizontally. At this time, the base can still be moved by the four universal wheels distributed on the base, which reduces the accommodation space required for the lifting equipment underground and reduces the space occupied by the lifting equipment when it moves underground. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 is a schematic diagram showing the structure of a simple micro crane for mining according to an exemplary embodiment;

[0021] Figure 2 According to an exemplary embodiment, Figure 1 The middle is an enlarged view of part A showing the position of the second rotating shaft;

[0022] Figure 3 is a schematic diagram showing the position of an elastic member according to an exemplary embodiment.

[0023] Reference numerals:

[0024] 1. Base; 11. First support rod; 12. Second support rod; 121. Mounting groove; 13. Support arm; 131. Slide groove; 14. Universal wheel; 15. First rotating shaft; 2. Inclined beam; 3. Strut; 4. Hydraulic cylinder; 5. Boom; 51. Suspension end; 6. Anti-bending component; 61. Support leg; 62. Suspension rope; 7. Positioning component; 71. Elastic member; 711. Spring; 72. Second rotating shaft; 8. Connecting block. DETAILED DESCRIPTION

[0025] The utility model discloses a simple micro crane for mining. The support arm can be rotated to a posture extending along a first direction by rotating the support arm, and a positioning component can be controlled to remain in a first state. At this time, the positioning component penetrates a base along a second direction, and the support arm hinged to the base is clamped to the base along the first direction. At the same time, the positioning component and the hinged end of the support arm work together to clamp the support arm to the base in a vertical direction, and the support arm can stably maintain the current posture; after the hydraulic cylinder is started, the extension or retraction of the telescopic rod of the hydraulic cylinder can drive the lifting end of the boom to rise or fall, thereby achieving the purpose of lifting. The positioning assembly is controlled to retract into the support arm so that the positioning assembly remains in the second state. At this time, the support arm and the base remain in a clamped state along the first direction and the second direction. The support arm is rotated with the hinge axis between the support arm and the base as the rotating axis, so that the support arm can be rotated in the third direction. Even if the support arm that was originally in a horizontal posture is rotated to a vertical or inclined posture, the installation space required for the support arm when it is placed horizontally is reduced. At the same time, the boom can also be tilted by starting the hydraulic cylinder to reduce the placement space required when the boom is placed horizontally. At this time, the base can still be moved by the four universal wheels distributed on the base, which reduces the accommodation space required for the lifting equipment underground and reduces the space occupied by the lifting equipment when it moves underground.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In an exemplary embodiment of the present disclosure, a simple micro crane for mining is provided. Figure 1 As shown, Figure 1 is a schematic diagram showing the structure of a simple micro crane for mining according to an exemplary embodiment; Figure 2 According to an exemplary embodiment, Figure 1 The middle is an enlarged view of part A showing the position of the second rotating shaft; Figure 3 FIG. 1 is a schematic diagram showing the position of an elastic member according to an exemplary embodiment. Figures 1 to 3 Provide explanation.

[0028] Some specific implementation modes described below are intended to facilitate those skilled in the art to understand the present embodiment, and the present embodiment is not limited to some specific implementation modes described below.

[0029] Reference Figure 1 and Figure 2 An exemplary embodiment of the present disclosure provides a simple micro crane for mining, and the simple micro crane for mining includes:

[0030] The base 1 has a plurality of universal wheels 14. The base 1 is hinged with a support arm 13 for clamping in a first direction and extending out of the base 1 in the first direction. The support arm 13 is used to rotate in a second direction so that its vertical projection is located within the edge of the base 1.

[0031] The positioning assembly 7 is slidably connected to the support arm 13 and is engaged with the support arm 13 along the second direction. The positioning assembly 7 has a first state of penetrating the base 1 along the second direction and a second state of being retracted into the support arm 13.

[0032] An inclined beam 2 is fixedly connected to the base 1 and extends in a third direction;

[0033] A suspension arm 5 is hinged to the top of the inclined beam 2 and can rotate in a third direction. The suspension arm 5 has a suspension end 51 that is away from the inclined beam 2 and extends along the first direction.

[0034] The hydraulic cylinder 4 is hinged to the inclined beam 2 and to the boom 5 , and the rotation axis of the hydraulic cylinder 4 is parallel to the rotation axis of the boom 5 .

[0035] For example, refer to Figure 1 and Figure 2 The base 1 includes a first support rod 11 and three second support rods 12. The length of the first support rod 11 is greater than the length of the three second support rods 12. Two second support rods 12 are spaced apart on the first support rod 11. Two ends of the first support rod 11 extend to the outside of the two second support rods 12 respectively. Another second support rod 12 is fixed between the two second support rods 12. Two ends of the second support rod 12 opposite to the first support rod 11 are fixedly connected to the two ends of the two opposite second support rods 12 respectively. The three second support rods 12 and the first support rod 11 together form a closed frame-shaped base 1.

[0036] The first direction is Figure 1 The X direction is shown, and the second direction is Figure 1 The Y direction is shown, and the third direction is Figure 1The two opposite second support rods 12 are provided with mounting grooves 121 for accommodating the support arms 13. The mounting grooves 121 extend from the top surface of the second support rod 12 to the inside of the physical structure of the second support rod 12, and the mounting grooves 121 penetrate the second support rod 12 from the end of the second support rod 12 away from the first support rod 11. There are two support arms 13, which are respectively hinged to the two opposite second support rods 12. The end of the support arm 13 facing the first support rod 11 is located inside the mounting grooves 121 and is hinged to the second support rod 12. The support arm 13 hinged in the mounting grooves 121 is clamped with the base 1 along the X direction, and the rotation axis of the support arm 13 is set along the Y direction.

[0037] When the support arm 13 is in a posture extending along the X direction, the positioning assembly 7 is exposed from the inside of the support arm 13 and penetrates the second support arm 13 along the Y direction. At this time, the positioning assembly 7 is in the first state; by retracting the positioning assembly 7 into the support arm 13, the positioning assembly 7 is in the second state, and the support arm 13 can be driven to rotate in the Z direction around the axis hinged inside the mounting groove 121, thereby rotating the support arm 13 to the top of the base 1 compared to the far end of the mounting groove 121.

[0038] The inclined beam 2 is arranged along the Z direction, and the bottom end of the inclined beam 2 is fixedly connected to the middle position of the top end of the second support arm 13 opposite to the first support rod 11, and the top end of the inclined beam 2 extends to the upper side of the base 1 away from the support foot.

[0039] One end of the boom 5 is hinged to the top of the inclined beam 2, and the other end is a suspension end 51 extending along the X direction away from the first support rod 11, and the rotation axis of the boom 5 is arranged along the Y direction.

[0040] The bottom end of the cylinder body of the hydraulic cylinder 4 is hinged to the outer wall of the inclined beam 2, and the top end of the piston rod of the hydraulic cylinder 4 is hinged with a connecting block 8. The boom 5 has a plurality of connecting positions (not shown in the figure) distributed along the first direction and used to fix the connecting block 8. There are multiple connecting positions and they are distributed along the length direction of the boom 5. The connecting block 8 is fixed on the connecting positions. The connecting block 8 is bolted to one of the connecting positions on the boom 5, and the rotation axis of the hydraulic cylinder 4 is set along the Y direction.

[0041] There are six universal wheels 14, and the two ends of the first support rod 11, the two ends of the second support rod 12 located on the opposite side of the first support rod 11, and the ends of the two support arms 13 away from the first support rod 11 are all fixedly connected with universal wheels 14, and the universal wheels 14 can be used to perform lateral displacement after the lifting arm 5 lifts the object. It should be understood that since part of the support arm 13 is located inside the installation groove 121, the two universal wheels 14 fixedly connected to the support arm 13 are sunken so that the bottom edges of the six universal wheels 14 are in the same plane.

[0042] A support rod 3 for fixing and supporting the inclined beam 2 is fixedly connected to the base 1, the bottom end of the support rod 3 is fixedly connected to the top surface of the second support rod 12, the top end of the support rod 3 is fixedly connected to the side wall of the inclined beam 2, there are two support rods 3 and they are distributed in the shape of a triangular pyramid with the inclined beam 2, the two support rods 3 are arranged on opposite sides of the inclined beam 2, and are respectively fixedly connected to the two opposite second support rods 12 mentioned above.

[0043] In this embodiment, by rotating the support arm 13, the support arm 13 is rotated to a posture extending along the X direction, and the positioning assembly 7 is controlled to remain in the first state. At this time, the positioning assembly 7 penetrates the second support rod 12 along the Y direction, and the support arm 13 hinged to the second support rod 12 is clamped with the second support rod 12 along the X direction. At the same time, the positioning assembly 7 and the hinged end of the support arm 13 work together to make the support arm 13 clamped with the second support rod 12 in the vertical direction, and the support arm 13 can stably maintain the current posture; after starting the hydraulic cylinder 4, the extension or retraction of the telescopic rod of the hydraulic cylinder 4 can drive the lifting end 51 of the boom 5 to rise or fall, thereby achieving the purpose of lifting. The positioning assembly 7 is controlled to retract into the support arm 13 so that the positioning assembly 7 remains in the second state. At this time, the support arm 13 and the second support rod 12 remain in a clamped state along the X direction and the Y direction. The support arm 13 is rotated with the hinge axis of the support arm 13 hinged in the installation groove 121 as the rotation axis, so that the support arm 13 can be rotated in the third direction. Even if the support arm 13 originally in a horizontal posture is rotated to a vertical or inclined posture, the installation space required for the support arm 13 when it is placed horizontally is reduced. At the same time, the boom 5 can be tilted by starting the hydraulic cylinder 4 to reduce the placement space required when the boom 5 is placed horizontally. At this time, the base 1 can still be moved by the four universal wheels 14 distributed on the base 1, which reduces the accommodation space required for the lifting equipment underground and reduces the space occupied by the lifting equipment when it moves underground.

[0044] In other embodiments, the ends of the two opposite second support rods 12 away from the first support rod 11 extend in directions away from each other, that is, the two opposite second support rods 12 are flared on the side away from the first support rod 11. The ends of the two support arms 13 away from the first support rod 11 extend in directions away from the first support rod 11 along the length direction of the two opposite second support arms 13, that is, the two support arms 13 are flared away from the first support rod 11.

[0045] In an exemplary embodiment of the present disclosure, referring to Figure 2 and Figure 3 A first rotating shaft 15 for articulating the base 1 is fixed on the support arm 13, and the positioning assembly 7 includes a second rotating shaft 72 slidably connected to the support arm 13 along the second direction, and an elastic member 71 located inside the support arm 13 and used to drive the second rotating shaft 72 to extend out of the support arm 13 and then penetrate the base 1.

[0046] For example, refer to Figure 2 and Figure 3The first rotating shaft 15 is in the shape of a rod extending along the Y direction. One end of the first rotating shaft 15 is fixedly connected to the side wall of the support arm 13 located inside the installation groove 121. The other end of the first rotating shaft 15 penetrates the physical structure of the side wall of the installation groove 121 along the Y direction and extends from the side wall of the second support rod 12. The second rotating shaft 72 is in the shape of a rod extending along the Y direction. A sliding groove 131 arranged along the Y direction is opened on the support arm 13 located inside the installation groove 121. The sliding groove 131 extends from the side wall of the support arm 13 to the inside of the entity of the support arm 13. The elastic member 71 includes a spring 711 fixedly connected to the inside of the sliding groove 131. One end of the spring 711 is fixedly connected to the inner end surface of the sliding groove 131, and the other end of the spring 711 extends toward the opening direction of the sliding groove 131. One end of the second rotating shaft 72 is located inside the sliding groove 131 and is fixedly connected to the end of the spring 711 toward the opening of the sliding groove 131. The other end of the second rotating shaft 72 extends out of the sliding groove 131 when the positioning assembly 7 is in the first state and penetrates the side wall entity of the installation groove 121 along the Y direction. At this time, the end of the second rotating shaft 72 extends out from the side wall of the second support rod 12 and is located on the side of the end of the first rotating shaft 15 extending out of the side wall of the second support rod 12. By pressing the end of the second rotating shaft 72 exposed from the side wall of the second supporting rod 12 , the second rotating shaft 72 can be completely hidden in the sliding groove 131 under the condition that the spring 711 is compressed, thereby rotating the supporting arm 13 .

[0047] In an exemplary embodiment of the present disclosure, referring to Figure 1 The boom 5 is provided with an anti-bending component 6 , and two ends of the anti-bending component 6 are fixedly connected to the boom 5 on both sides of the top end of the piston rod of the hydraulic cylinder 4 .

[0048] For example, refer to Figure 1 The anti-bending component 6 includes a support leg 61 fixedly connected to the top surface of the boom 5, and a suspension rope 62 fixedly connected to the top surface of the boom 5. The two ends of the suspension rope 62 are respectively fixedly connected to the top surface of the boom 5 on both sides of the support leg 61, and the support leg 61 lifts the suspension rope 62 and makes the suspension rope 62 taut. The taut suspension rope 62 is in a broken line posture.

[0049] In this embodiment, there are connection positions at corresponding positions below the legs 61. In other embodiments, the legs 61 are bolted to the boom 5, that is, the legs 61 can be installed at different positions on the top surface of the boom 5, so that the legs 61 correspond to different connection positions, thereby enhancing the bending strength of the boom 5.

[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple miniature crane for mining, characterized in that: include: A base (1) having a plurality of universal wheels (14); a support arm (13) is hingedly connected to the base (1) for clamping in a first direction and for extending out of the base (1) in the first direction; the support arm (13) is used to rotate in a second direction so that its vertical projection is located within the edge of the base (1); a positioning assembly (7) fixedly connected to the support arm (13), the positioning assembly (7) having a first state of penetrating the base (1) along the second direction, and a second state of being retracted into the support arm (13); An inclined beam (2) is fixedly connected to the base (1) and extends in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; A suspension arm (5) is hinged to the top end of the inclined beam (2) and is capable of rotating in the third direction, the suspension arm (5) having a suspension end (51) that is away from the inclined beam (2) and extends along the first direction; A hydraulic cylinder (4) is hinged to the inclined beam (2) and to the boom (5), and a rotation axis of the hydraulic cylinder (4) is parallel to a rotation axis of the boom (5).

2. The simple mini crane for mining according to claim 1, characterized in that: The positioning assembly (7) comprises a second rotating shaft (72) slidably connected to the support arm (13) along the second direction, and an elastic member (71) located inside the support arm (13) and used to drive the second rotating shaft (72) to extend out of the support arm (13) and then penetrate the base (1).

3. The simple mini crane for mining according to claim 2 is characterized in that: The elastic member (71) comprises a spring (711) fixedly connected to the inside of the support arm (13).

4. The simple mini crane for mining according to claim 1, characterized in that: The top end of the inclined beam (2) extends to above a side of the base (1) facing away from the support arm (13).

5. The simple mini crane for mining according to claim 1, characterized in that: The boom (5) is provided with an anti-bending component (6), and two ends of the anti-bending component (6) are respectively arranged on both sides of the top end of the piston rod of the hydraulic cylinder (4).

6. The simple mini crane for mining according to claim 1, characterized in that: The base (1) is fixedly connected with a support rod (3) for fixing and supporting the inclined beam (2); there are two support rods (3) which are distributed in the shape of a triangular pyramid with respect to the inclined beam (2).

7. The simple mini crane for mining according to claim 1, characterized in that: A connecting block (8) is hingedly connected to the end of the piston rod of the hydraulic cylinder (4), and the boom (5) has a plurality of connecting positions distributed along the first direction and used to fix the connecting block (8).

8. The simple mini crane for mining according to claim 1, characterized in that: There are two support arms (13) distributed on two opposite sides of the base (1), and the ends of the two support arms (13) facing away from the base (1) are flared.

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