Mine steel derrick structure

Abstract

The utility model relates to the technical field of steel derricks, and discloses a mine steel derrick structure which comprises an installation foundation and an outer steel frame, the outer steel frame is fixedly installed on the upper side of the installation foundation, an inner steel frame is arranged in the outer steel frame, a lifting frame is fixedly installed at the bottom of the inner steel frame, and a lifting assembly is arranged between the outer steel frame and the lifting frame. The lifting frame is driven by the lifting assembly to slide up and down along the inner wall of the outer steel frame, the lifting assembly comprises a driving motor, a first chain wheel, a second chain wheel and a first transmission chain, and the first chain wheel is rotationally installed at the bottom of the outer steel frame. According to the mine steel derrick structure, the inner steel frame is arranged in the outer steel frame, the driving motor lifts the inner steel frame through the first transmission chain, and then the inner steel frame and the outer steel frame are fixedly connected, so that the height of the inner steel frame in the outer steel frame is adjustable, and the problem that the fixed design of an existing steel derrick is inconvenient to use is solved; and the use requirements of mining materials at different lifting heights are met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel derricks, in particular to a mine steel derrick structure. Background Art

[0002] Steel structure derricks are often seen in mining construction projects. They are a kind of supporting device for placing overhead cranes, hanging traveling blocks, large hooks, lifting rings and other machinery. For example, the prior art has a notice number of CN211687956U, which discloses a steel derrick structure for mining construction projects, including: a mounting plate, an adjustment plate, and a main rod; the upper side of the mounting plate is provided with four screw rods in a rectangular distribution, and the mounting plate and the screw rod are connected by welding; the adjustment plate is arranged on the outside of the screw rod, and the adjustment plate and the screw rod are connected; the nut is arranged on the outside of the screw rod, and the nut and the screw rod are screwed; the main rod is arranged in the middle of the upper side of the adjustment plate, and the main rod and the adjustment plate are connected by welding; the cross bar is arranged in the middle of two adjacent main rods, and the cross bar and the main rod are connected by bolts. Through structural improvements, it has the advantages of dust and fall prevention, high adaptability to the installation environment, simple structure, and strong and durable.

[0003] However, the existing steel derrick structures are all fixed. When in order to meet the needs of different lifting heights of mined ore, it is necessary to disassemble and assemble twice to increase the height of the steel derrick body, which brings inconvenience to use. Based on this, the existing steel derrick structure has the problem of inconvenient automatic height adjustment, which needs further improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a mine steel derrick structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mine steel derrick structure, including an installation base and an outer steel frame, the outer steel frame is fixedly installed on the upper side of the installation base, an inner steel frame is arranged inside the outer steel frame, a lifting frame is fixedly installed at the bottom of the inner steel frame, a lifting assembly is arranged between the outer steel frame and the lifting frame, and the lifting frame is driven by the lifting assembly to slide up and down along the inner wall of the outer steel frame.

[0006] The lifting assembly includes a driving motor, a first sprocket, a second sprocket and a first transmission chain. The first sprocket is rotatably installed on the top of the outer steel frame. There are two second sprockets, and the two second sprockets are respectively fixedly installed on the two ends of the connecting shaft. The connecting shaft is rotatably installed on the bottom of the outer steel frame. The first transmission chain is sleeved on the surfaces of the first sprocket and the second sprocket, and both ends of the first transmission chain are fixedly connected to the lifting frame. The driving motor drives the connecting shaft to rotate, and the driving motor lifts the inner steel frame through the first transmission chain, so that the height of the inner steel frame inside the outer steel frame can be adjusted.

[0007] In some embodiments, the outer steel frame includes a plurality of vertical columns and a plurality of connecting beams, and the plurality of vertical columns and the plurality of connecting beams are fixedly connected to each other to form a rectangular cube-shaped frame structure, and pairs of parallel guide plates are fixedly installed on the inner sides of the left and right connecting beams, and the parallel guide plates are used to constrain the lifting route of the lifting frame.

[0008] In some embodiments, two groups of first rollers are rotatably installed on the left and right side surfaces of the lifting frame, and the two groups of first rollers roll along the opposite surfaces of the parallel guide plate. A plurality of second rollers are rotatably installed on the upper surface of the lifting frame, and the second rollers roll along the inner surface of the parallel guide plate, thereby ensuring that the lifting frame is more stable when moving up and down.

[0009] In some embodiments, the inner steel frame includes multiple limit support plates and multiple top cross beams, which are fixedly connected to each other to form a frame structure, and multiple positioning holes are opened on the surface of the limit support plates, and the multiple positioning holes are arranged in a linear array. Both sides of the outer steel frame are fixedly installed with mounting side plates, and the surface of the mounting side plates is fixedly installed with a hydraulic limit cylinder, and the telescopic end of the hydraulic limit cylinder can be inserted into the positioning hole to realize the fixed connection between the inner steel frame and the outer steel frame.

[0010] In some embodiments, there are two sets of lifting components, which are respectively arranged on both sides of the inner steel frame. The driving motor is fixedly installed on the upper surface of the installation base. The upper surface of the installation base is rotatably installed with a transmission shaft, and a plurality of third sprockets are fixedly installed on the surface of the transmission shaft. The third sprocket drives the second sprocket to rotate through the second transmission chain, and drives the connecting shafts in the two sets of lifting components to rotate synchronously, so as to realize the driving of the lifting frame to smoothly lift up and down.

[0011] Beneficial Effects

[0012] The utility model provides a mine steel derrick structure, which has the following beneficial effects:

[0013] 1. The mine steel derrick structure is provided with an inner steel frame inside an outer steel frame, a driving motor lifts the inner steel frame through a first transmission chain, and then the inner steel frame and the outer steel frame are fixedly connected, so that the height of the inner steel frame inside the outer steel frame is adjustable, which solves the problem of the inconvenience of the existing fixed steel derrick design and meets the use requirements of different lifting heights of mining materials.

[0014] 2. The mine steel derrick structure is provided with a hydraulic limit cylinder. When the height of the inner steel frame changes, the telescopic end of the hydraulic limit cylinder can be inserted into the positioning hole on the side of the inner steel frame to realize the connection between the inner steel frame and the outer steel frame. By providing the first roller and the second roller, when the lifting frame is lifted up and down, the first roller and the second roller roll along the surface of the parallel guide plate, thereby reducing friction resistance and ensuring the stability of the lifting of the inner steel frame, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model (I);

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model (II);

[0017] Figure 3 for Figure 1 A schematic diagram of a local enlarged structure;

[0018] Figure 4 for Figure 2 A in the figure is an enlarged structural diagram.

[0019] In the figure: 1 installation base, 2 outer steel frame, 3 inner steel frame, 4 lifting frame, 5 driving motor, 6 first sprocket, 7 second sprocket, 8 first transmission chain, 9 connecting shaft, 10 vertical column, 11 connecting beam, 12 parallel guide plate, 13 first roller, 14 second roller, 15 limiting support plate, 16 top beam, 17 positioning hole, 18 hydraulic limiting cylinder, 19 transmission shaft, 20 third sprocket, 21 second transmission chain. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a mine steel derrick structure, including an installation foundation 1 and an outer steel frame 2, the installation foundation 1 is formed by concrete pouring on the ground, the installation foundation 1 is pre-buried with embedded connecting parts, the outer steel frame 2 is connected to the embedded connecting parts, so that the outer steel frame 2 is fixedly installed on the upper side of the installation foundation 1, an inner steel frame 3 is arranged inside the outer steel frame 2, a lifting frame 4 is fixedly installed at the bottom of the inner steel frame 3, a lifting component is arranged between the outer steel frame 2 and the lifting frame 4, and the lifting frame 4 is driven by the lifting component to slide up and down along the inner wall of the outer steel frame 2.

[0022] Among them, the outer steel frame 2 includes multiple vertical columns 10 and multiple connecting beams 11. The multiple vertical columns 10 and the multiple connecting beams 11 are fixedly connected to each other to form a rectangular cube-shaped frame structure. The inner sides of the connecting beams 11 on the left and right sides of the outer steel frame 2 are fixedly installed with pairs of parallel guide plates 12.

[0023] Two groups of first rollers 13 are rotatably installed on the left and right side surfaces of the lifting frame 4, and the two groups of first rollers 13 roll along the opposite surfaces of the parallel guide plate 12. A plurality of second rollers 14 are rotatably installed on the upper surface of the lifting frame 4, and the second rollers 14 roll along the inner surface of the parallel guide plate 12. By arranging the first rollers 13 and the second rollers 14, when the lifting frame 4 is lifted up and down, the first rollers 13 and the second rollers 14 roll along the surface of the parallel guide plate 12, thereby reducing friction resistance and ensuring the stability of the lifting and lowering of the inner steel frame 3, which is more convenient to use.

[0024] The inner steel frame 3 includes a plurality of limit support plates 15 and a plurality of top cross beams 16, which are fixedly connected to each other to form a frame structure. A plurality of positioning holes 17 are opened on the surface of the limit support plates 15, and the plurality of positioning holes 17 are arranged in a linear array.

[0025] Mounting side plates are fixedly installed on both sides of the outer steel frame 2, and a hydraulic limit cylinder 18 is fixedly installed on the surface of the mounting side plates. The telescopic end of the hydraulic limit cylinder 18 can be inserted into the positioning hole 17. By setting the hydraulic limit cylinder 18, when the height of the inner steel frame 3 changes, the telescopic end of the hydraulic limit cylinder 18 can be inserted into the positioning hole 17 on the side of the inner steel frame 3, thereby realizing the connection between the inner steel frame 3 and the outer steel frame 2.

[0026] The lifting assembly includes a driving motor 5, a first sprocket 6, a second sprocket 7 and a first transmission chain 8. The first sprocket 6 is rotatably installed on the top of the outer steel frame 2. There are two second sprockets 7, and the two second sprockets 7 are respectively fixedly installed at the two ends of the connecting shaft 9. The connecting shaft 9 is rotatably installed on the bottom of the outer steel frame 2. The first transmission chain 8 is sleeved on the surfaces of the first sprocket 6 and the second sprocket 7, and both ends of the first transmission chain 8 are fixedly connected to the lifting frame 4. The driving motor 5 drives the connecting shaft 9 to rotate.

[0027] In this embodiment, there are two sets of lifting components, which are respectively arranged on both sides of the inner steel frame 3. The driving motor 5 is fixedly installed on the upper surface of the mounting base 1. The upper surface of the mounting base 1 is rotatably installed with a transmission shaft 19. A plurality of third sprockets 20 are fixedly installed on the surface of the transmission shaft 19. The third sprocket 20 drives the second sprocket 7 to rotate through the second transmission chain 21. The driving motor 5 drives the transmission shaft 19 to rotate. The transmission shaft 19 drives the connecting shafts 9 in the two sets of lifting components to rotate synchronously through the two second transmission chains 21, providing upward traction on both sides of the lifting frame 4, thereby driving the lifting frame 4 to move up and down smoothly.

[0028] The mine steel derrick structure is configured by arranging an inner steel frame 3 inside an outer steel frame 2, and a driving motor 5 lifts the inner steel frame 3 through a first transmission chain 8, and then the telescopic end of the hydraulic limit cylinder 18 can be inserted into a positioning hole 17 on the side of the inner steel frame 3, so that the inner steel frame 3 and the outer steel frame 2 are fixedly connected, and the height of the inner steel frame 3 inside the outer steel frame 2 is adjustable, which solves the problem of the inconvenience of the existing fixed steel derrick design and meets the use requirements of different lifting heights of mined ore.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mine steel derrick structure, comprising a mounting base (1) and an outer steel frame (2), characterized in that: The outer steel frame (2) is fixedly mounted on the upper side of the installation base (1); an inner steel frame (3) is arranged inside the outer steel frame (2); a lifting frame (4) is fixedly mounted at the bottom of the inner steel frame (3); a lifting assembly is arranged between the outer steel frame (2) and the lifting frame (4); and the lifting frame (4) is driven by the lifting assembly to slide up and down along the inner wall of the outer steel frame (2); The lifting assembly comprises a driving motor (5), a first sprocket (6), a second sprocket (7) and a first transmission chain (8); the first sprocket (6) is rotatably mounted on the top of the outer steel frame (2); there are two second sprockets (7), the two second sprockets (7) are respectively fixedly mounted on the two ends of a connecting shaft (9); the connecting shaft (9) is rotatably mounted on the bottom of the outer steel frame (2); the first transmission chain (8) is sleeved on the surfaces of the first sprocket (6) and the second sprocket (7); and both ends of the first transmission chain (8) are fixedly connected to the lifting frame (4); the driving motor (5) drives the connecting shaft (9) to rotate.

2. The mine steel derrick structure according to claim 1, characterized in that: The outer steel frame (2) comprises a plurality of vertical columns (10) and a plurality of connecting beams (11), wherein the plurality of vertical columns (10) and the plurality of connecting beams (11) are fixedly connected to each other to form a rectangular cube-shaped frame structure, and the inner sides of the connecting beams (11) on the left and right sides are fixedly mounted with pairs of parallel guide rail plates (12).

3. The mine steel derrick structure according to claim 2 is characterized in that: Two groups of first rollers (13) are rotatably mounted on the left and right side surfaces of the lifting frame (4), and the two groups of first rollers (13) roll along opposite surfaces of the parallel guide rail plate (12).

4. The mine steel derrick structure according to claim 3 is characterized in that: A plurality of second rollers (14) are rotatably mounted on the upper surface of the lifting frame (4), and the second rollers (14) roll along the inner surface of the parallel guide plate (12).

5. The mine steel derrick structure according to claim 4, characterized in that: The inner steel frame (3) comprises a plurality of position-limiting support plates (15) and a plurality of top cross beams (16), wherein the plurality of position-limiting support plates (15) and the plurality of top cross beams (16) are fixedly connected to each other to form a frame structure, and a plurality of positioning holes (17) are provided on the surface of the position-limiting support plates (15), and the plurality of positioning holes (17) are arranged in a linear array.

6. The mine steel derrick structure according to claim 5, characterized in that: Mounting side plates are fixedly mounted on both sides of the outer steel frame (2), and a hydraulic limit cylinder (18) is fixedly mounted on the surface of the mounting side plate. The telescopic end of the hydraulic limit cylinder (18) can be inserted into the positioning hole (17).

7. The mine steel derrick structure according to any one of claims 1 to 6, characterized in that: There are two sets of lifting components, which are respectively arranged on both sides of the inner steel frame (3).

8. The mine steel derrick structure according to claim 7, characterized in that: The driving motor (5) is fixedly mounted on the upper surface of the mounting base (1); a transmission shaft (19) is rotatably mounted on the upper surface of the mounting base (1); a plurality of third sprockets (20) are fixedly mounted on the surface of the transmission shaft (19); and the third sprockets (20) drive the second sprocket (7) to rotate via a second transmission chain (21).

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