Mining bridge crane

Abstract

The invention relates to the technical field of hoisting equipment, and discloses a mining bridge crane which comprises a cross beam, frames arranged on the two sides of the cross beam, rollers installed at the bottoms of the frames, rails matched with the rollers, a crane car sliding on the surface of the cross beam and a driving assembly used for driving the crane car to reciprocate on the surface of the cross beam. The hoisting assembly is arranged at the bottom of the crane car, the hoisting assembly comprises a hoisting block fixedly connected to the bottom of the crane car, a hoist crane is arranged on the surface of the hoisting block, the hoisting block is connected with a lifting rope through the hoist crane, and a lifting hook is arranged at the bottom of the lifting rope; and the stabilizing assembly comprises a sliding plate connected between the two rails in a sliding mode, a bearing block is arranged on the surface of the sliding plate in a sliding mode, a plurality of clamping grooves used for positioning goods are formed in the surface of the bearing block, and a stabilizing plate is hinged to the surface of the bearing block. The lifting device has the effect of improving the lifting stability of the goods with unbalanced weight under the mine.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, specifically to a mining bridge crane. Background Technology

[0002] In the entire mining production process, mining bridge cranes are the core equipment for realizing underground ore transfer, heavy equipment installation and maintenance, and support material transportation. Their operation scenarios cover key areas such as underground roadways, bottom yards, and ore dressing workshops, directly supporting the efficient advancement of mining, ore dressing, and auxiliary support processes.

[0003] Unlike bridge cranes used in surface industrial settings, bridge cranes in underground mine tunnels are limited in height due to space constraints. Furthermore, the goods lifted in mines are often long items such as combined long anchor bolts, conveyor head frames, and mining supports, which are often unbalanced in weight at both ends. When lifting such goods, it is easy to encounter problems such as difficulty in positioning the lifting point and uncontrolled shift of the center of gravity after lifting, resulting in poor stability of the goods after lifting. In addition, the limited lifting height due to the narrow space underground makes it easy for the drooping end to scrape against the tunnel wall, surface equipment, or overhead pipelines, posing certain safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a mining bridge crane to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mining bridge crane, comprising a crossbeam and a frame disposed on both sides thereof, rollers installed at the bottom of the frame, and a track adapted to the rollers, and further comprising a crane trolley sliding on the surface of the crossbeam and a drive assembly for driving the crane trolley to reciprocate on the surface of the crossbeam.

[0006] A lifting assembly is provided at the bottom of the crane vehicle. The lifting assembly includes a lifting block fixedly connected to the bottom of the crane vehicle. A hoist is provided on the surface of the lifting block, and a lifting rope is connected to the hoist. A hook is provided at the bottom of the lifting rope.

[0007] A stabilizing component includes a sliding plate slidably connected between the two tracks, a support block slidably mounted on the surface of the sliding plate, a plurality of slots for positioning goods being formed on the surface of the support block, a stabilizing plate hinged to the surface of the support block, and a fixing block adapted to the stabilizing plate being fixedly connected to one side of the lifting block.

[0008] Preferably, a locking block is fixedly connected to the surface of the fixing block, and a positioning groove adapted to the locking block is formed on the surface of the stabilizing plate.

[0009] Preferably, the card block is a magnetic block and the stabilizing plate is an iron plate.

[0010] Preferably, an auxiliary plate is hinged to the surface of the support block, and pull rings adapted to the lifting rope are fixedly connected to both sides of the auxiliary plate.

[0011] Preferably, a protrusion is provided at the hinge joint between the auxiliary plate and the support block, and a pressing block slides inside the support block, with both sides of the pressing block contacting the protrusion and the sliding plate respectively.

[0012] Preferably, the bottom of the lifting block is fixedly connected with a number of auxiliary wheels adapted to the lifting rope.

[0013] Preferably, the drive assembly includes a movable motor fixedly connected to one side of the crossbeam, and a screw fixedly connected to the output end of the movable motor. The screw passes through the crossbeam and the crane, and the screw is threadedly connected to the crane.

[0014] Preferably, both sides of the sliding plate are rotatably connected to connecting wheels adapted to the track, and both sides of the support block are rotatably connected to adjusting wheels adapted to the sliding plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention employs a sliding plate and a supporting block, both located within the track near the ground and sliding synchronously with the crane. The heavier end of a long cargo is placed on the surface of the supporting block for support, while only the lighter end is lifted. An auxiliary plate stabilizes the cargo's position, transferring the cargo's center of gravity to the controllable surface of the supporting block. This effectively solves the problems of difficulty in selecting the lifting point for unbalanced cargo and the uncontrollable center of gravity after lifting. Furthermore, the heavier end of the cargo is always controlled by the supporting block, which also effectively avoids scratches and collisions caused by the swaying of unbalanced cargo. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram illustrating the unfolded state of the support block and auxiliary plate according to the present invention;

[0019] Figure 3 This is a schematic diagram illustrating the cargo hoisting process according to the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of point A in the image;

[0021] Figure 5 For the present invention Figure 3 Enlarged view of point B in the image.

[0022] In the diagram: 1. Frame; 11. Crossbeam; 12. Roller; 13. Rail; 2. Crane; 21. Mobile motor; 211. Screw; 22. Lifting block; 221. Hoist; 222. Lifting rope; 223. Auxiliary wheel; 224. Fixing block; 225. Locking block; 3. Sliding plate; 31. Connecting wheel; 32. Supporting block; 321. Adjusting wheel; 322. Slot; 33. Stabilizing plate; 34. Auxiliary plate; 341. Pull ring; 342. Protrusion; 343. Extrusion block. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention discloses a mining bridge crane, such as... Figure 1-5 As shown, the system includes a crossbeam 11 and a frame 1 disposed on both sides thereon, rollers 12 mounted on the bottom of the frame 1, and a track 13 adapted to the rollers 12. The frame 1 is fixedly connected to the crossbeam 11 by welding or bolting. Multiple sets of rollers 12 are provided and rotatably connected to the bottom of the frame 1. The track 13 is a fixed track 13 laid on the ground of the mine roadway. The specific width and laying distance are set according to the conveying distance of the mine roadway, the mine environment, etc. The system also includes a crane 2 that slides on the surface of the crossbeam 11 and a drive assembly for driving the crane 2 to move back and forth on the surface of the crossbeam 11.

[0025] Specifically, the rotation of the rollers 12 on the track 13 drives the frame 1 and the crossbeam 11 to move longitudinally. The frame 1 can be moved by a winch or by a drive motor to drive the rollers 12 to rotate, thereby enabling the frame 1 and the crossbeam 11 to move on the track 13. The crane 2 is driven to slide on the surface of the crossbeam 11 by the drive assembly, thus moving laterally, which facilitates the lifting of goods and their transport to the designated location.

[0026] It also includes a lifting assembly, which is set at the bottom of the crane vehicle 2. The lifting assembly includes a lifting block 22 fixedly connected to the bottom of the crane vehicle 2. A hoist 221 is provided on the surface of the lifting block 22. The hoist 221 is fixed to the surface of the lifting block 22 by bolts. The hoist 221 is an electric hoist or a pneumatic hoist. A lifting rope 222 is connected to the hoist 221. The lifting rope 222 is a steel wire rope. A hook is provided at the bottom of the lifting rope 222. The hook can be flexibly replaced with a grab hook, electromagnet or other connecting parts as needed to lift the goods. It also includes a stabilizing assembly, which includes a sliding plate 3 slidably connected between two rails 13. The sliding plate 3 is set near the ground. A support block 32 slides on the surface of the sliding plate 3. Several slots 322 for positioning goods are opened on the surface of the support block 32. A stabilizing plate 33 is hinged to the surface of the support block 32. A fixing block 224 adapted to the stabilizing plate 33 is fixedly connected to one side of the lifting block 22.

[0027] Specifically, when transporting unbalanced and long goods, the stabilizing plate 33 is rotated upwards, and the positions of the sliding plate 3 and the support block 32 are adjusted simultaneously, so that the support block 32 moves below the lifting block 22, and the stabilizing plate 33 abuts against the fixing block 224 on one side of the lifting block 22. The heavier end of the unbalanced goods is placed on the surface of the support block 32, and the contact friction is increased and the goods are positioned by the slot 322. Then, the lighter end of the goods is lifted by the lifting rope 222 and the hook, so that the goods are tilted as a whole, and the center of gravity of the goods is transferred to the surface of the support block 32. Then, the frame 1 and the crossbeam 11 are connected to the surface of the track 13. The movement of the crane 2 and the lifting block 22 moves synchronously along the direction set by the track 13. The stabilizing plate 33, which abuts against the fixed block 224 on the surface of the lifting block 22, will synchronously drive the supporting block 32 at its bottom to move synchronously, thereby realizing the movement of the goods. At this time, the sliding plate 3 will slide on the track 13, and its movement trajectory is the same as that of the frame 1 on the track 13, thus effectively ensuring the stability of the movement. During this process, the center of gravity of the unbalanced goods is always kept on the surface of the supporting block 32 and in hard contact with the supporting block 32. The lighter end of the goods is lifted to avoid collisions and bumps, achieving a stable and controllable lifting effect without shaking.

[0028] A locking block 225 is fixedly connected to the surface of the fixing block 224, and a positioning groove adapted to the locking block 225 is opened on the surface of the stabilizing plate 33. After the locking block 225 is inserted into the positioning groove, the two are connected by locking to improve the connection stability, making the synchronous movement of the lifting block 22 and the supporting block 32 more stable.

[0029] Furthermore, the card block 225 is a magnetic block, and the stabilizing plate 33 is an iron plate or other material with magnetization properties that can be magnetically attracted. After the magnetic block is inserted into the positioning groove, it is simultaneously attracted to the stabilizing plate 33, further improving the stability of the connection between the two.

[0030] like Figure 2 and Figure 3 As shown, an auxiliary plate 34 is hinged to the surface of the support block 32. The auxiliary plate 34 is used to assist in supporting the lighter end of the goods and to facilitate the limiting of the goods. Pull rings 341 adapted to the lifting rope 222 are fixedly connected to both sides of the auxiliary plate 34. By placing the goods on the surface of the support block 32 and the auxiliary plate 34, and connecting the bottom ring of the lifting rope 222 to the pull rings 341 on both sides of the auxiliary plate 34 via connecting ropes, the hoist 221 drives the lifting rope 222 upward, pulling up the auxiliary plate 34 and causing it to rotate upward, causing the lighter end of the goods to tilt upward. The heavier end of the goods, due to its positioning with the groove 322 on the surface of the support block 32, will be stably fixed on the surface of the support block 32 or against the surface of the stabilizing plate 33. The connecting ropes extending from the pull rings 341 on both sides of the auxiliary plate 34 are located on both sides of the goods, effectively limiting the goods on both sides. At this time, the goods are in the following position: Figure 3 As shown, the heavier end of the unbalanced cargo is close to the ground, further improving stability and safety during hoisting, while the lighter end is tilted upwards, effectively preventing collisions caused by swaying.

[0031] like Figure 5 As shown, a protrusion 342 is provided at the hinge of the auxiliary plate 34 and the support block 32. A pressing block 343 slides inside the support block 32. The two sides of the pressing block 343 contact the protrusion 342 and the sliding plate 3 respectively. The pressing block 343 is a rubber block with a certain deformation. When the auxiliary plate 34 rotates, the protrusion 342 on its surface will continuously move toward one side of the pressing block 343, pushing the pressing block 343 and pressing it against the surface of the sliding plate 3. This ensures that the support block 32 can be fixed on the surface of the sliding plate 3, preventing it from shaking on both sides and improving the stability during hoisting.

[0032] The bottom of the lifting block 22 is fixedly connected with several auxiliary wheels 223 that are compatible with the lifting rope 222. The function of the auxiliary wheels 223 is as follows: Figure 3 and Figure 4 As shown, when the lifting rope 222 is tilted to lift the lighter goods at the far end, the auxiliary wheel 223 comes into contact with the lifting rope 222 and reduces frictional wear by rolling, thus avoiding the problem of the lifting rope 222 directly sliding and rubbing against the edge of the lifting block 22, which would cause excessive wear.

[0033] The drive assembly includes a moving motor 21 fixedly connected to one side of the crossbeam 11. A screw 211 is fixedly connected to the output end of the moving motor 21. The screw 211 passes through the crossbeam 11 and the crane 2 respectively, and the screw 211 is threadedly connected to the crane 2. Through the output of the moving motor 21, the screw 211 is driven to rotate, thereby enabling the crane 2, which is threadedly connected to the screw 211, to reciprocate on the surface of the crossbeam 11.

[0034] Both sides of the sliding plate 3 are rotatably connected to connecting wheels 31 that are adapted to the track 13. The connecting wheels 31 make the relative movement of the sliding plate 3 and the track 13 smoother and more stable. Both sides of the support block 32 are rotatably connected to adjusting wheels 321 that are adapted to the sliding plate 3. The adjusting wheels 321 make the sliding of the support block 32 on the surface of the sliding plate 3 smoother and more stable.

[0035] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mining bridge crane, comprising a crossbeam (11) and a frame (1) disposed on both sides thereof, rollers (12) mounted on the bottom of the frame (1), and a track (13) adapted to the rollers (12), characterized in that, It also includes a crane (2) that slides on the surface of the crossbeam (11) and a drive assembly for driving the crane (2) to reciprocate on the surface of the crossbeam (11); A lifting assembly is provided at the bottom of the crane vehicle (2). The lifting assembly includes a lifting block (22) fixedly connected to the bottom of the crane vehicle (2). A hoist (221) is provided on the surface of the lifting block (22), and a lifting rope (222) is connected through the hoist (221). A hook is provided at the bottom of the lifting rope (222). The stabilizing component includes a sliding plate (3) slidably connected between the two tracks (13), a support block (32) slidably on the surface of the sliding plate (3), a plurality of slots (322) for positioning goods are provided on the surface of the support block (32), a stabilizing plate (33) is hinged to the surface of the support block (32), and a fixing block (224) adapted to the stabilizing plate (33) is fixedly connected to one side of the lifting block (22).

2. A mining bridge crane according to claim 1, characterized in that: The surface of the fixing block (224) is fixedly connected to the card block (225), and the surface of the stabilizing plate (33) is provided with a positioning groove that is compatible with the card block (225).

3. A mining bridge crane according to claim 2, characterized in that: The card block (225) is a magnetic block, and the stabilizing plate (33) is an iron plate.

4. A mining bridge crane according to claim 1, characterized in that: The surface of the support block (32) is hinged with an auxiliary plate (34), and both sides of the auxiliary plate (34) are fixedly connected with pull rings (341) adapted to the lifting rope (222).

5. A mining bridge crane according to claim 4, characterized in that: A protrusion (342) is provided at the hinge of the auxiliary plate (34) and the support block (32). A pressing block (343) slides inside the support block (32). The two sides of the pressing block (343) are in contact with the protrusion (342) and the sliding plate (3) respectively.

6. A mining bridge crane according to claim 1, characterized in that: The bottom of the lifting block (22) is fixedly connected with several auxiliary wheels (223) that are adapted to the lifting rope (222).

7. A mining bridge crane according to claim 1, characterized in that: The drive assembly includes a moving motor (21) fixedly connected to one side of the crossbeam (11). The output end of the moving motor (21) is fixedly connected to a screw (211). The screw (211) passes through the crossbeam (11) and the crane (2) respectively, and the screw (211) is threadedly connected to the crane (2).

8. A mining bridge crane according to claim 1, characterized in that: Both sides of the sliding plate (3) are rotatably connected to connecting wheels (31) adapted to the track (13), and both sides of the support block (32) are rotatably connected to adjusting wheels (321) adapted to the sliding plate (3).

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