Cable drum for servicing a mining shovel

Abstract

The utility model provides a kind of cable reel for mining electric shovel maintenance, it is related to mining electric shovel maintenance technical field, including main frame body, lifting frame and cable reel, the top of main frame body is hinged with rotating arm, and one end of rotating arm is fixedly connected with fixed frame, and the side of fixed frame is equipped with limiting mechanism;The utility model moves along the length direction of rotating arm by cable, and cable passes between moving roller and fixed roller, and it is 90 around one moving roller Bending, sliding slot frame limits the moving track of sliding block, screw rod and sliding block are threadedly cooperated, the inside linear reciprocating movement of sliding block in sliding slot frame is made by the positive and negative rotation of screw rod driven by hand wheel, sliding block drives moving roller to be close to fixed roller, and moving roller and fixed roller are respectively attached to the two sides of cable, to limit cable, to solve the problem that mining electric shovel operating environment is poor in prior art, cable reel is dragged and crushed, cable is stuck and detached due to deformation of winding drum positioning groove, and supporting rod bearing connection is loose or even broken.

Description

Technical Field

[0001] This utility model relates to the field of mining electric shovel maintenance technology, and in particular to a cable reel for mining electric shovel maintenance. Background Technology

[0002] Electric shovels, also known as rope shovels or cable shovels, are the main mining equipment in open-pit mines. They consist of a traveling mechanism, a slewing mechanism, and a working device. They are driven by an electric motor using gears, chains, and other transmissions. They are characterized by high productivity, high operating efficiency, and low operating costs. Their buckets directly bear the force of the ore and complete the excavation under the pushing and lifting forces. With the development of technology, electric shovels are being upgraded towards electrification and intelligence to improve operating efficiency and safety. Mining electric shovels operate in harsh environments, and the cable reel must frequently withstand the dragging, crushing, and bending of the cable. Over time, the positioning groove of the reel may deform due to uneven cable winding or external impact, causing the cable to jam or fall off. The connection between the support rod and the bearing is prone to loosening due to vibration, and may even cause the bearing to break, affecting the smoothness of cable winding and unwinding. Therefore, this utility model proposes a cable reel for the maintenance of mining electric shovels to solve the above problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a cable reel for the maintenance of mining electric shovels, which solves the problems in the prior art such as the poor working environment of mining electric shovels, the cable reel being dragged and crushed, the deformation of the reel positioning groove causing the cable to get stuck, and the loosening or even breakage of the support rod bearing connection.

[0004] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a cable reel for the maintenance of a mining electric shovel, comprising a main frame, a lifting frame and a cable reel, wherein the lifting frame is provided on the inner side of the main frame, the cable reel is rotatably connected to the top of the lifting frame, a rotating arm is hinged to the top of the main frame, a fixed frame is fixedly connected to one end of the rotating arm, and a limiting mechanism is provided on one side of the fixed frame.

[0005] A further improvement is made in that: the limiting mechanism includes a slide frame, a sliding block, a moving roller, a fixed roller, and a lead screw. The slide frame is fixedly connected to one side of the fixed frame, and the sliding block is slidably connected inside the slide frame. The fixed roller is symmetrically rotatably connected to one side of the slide frame, and the moving roller is symmetrically rotatably connected to both ends of the sliding block. The lead screw is rotatably connected inside the slide frame, and one end of the lead screw passes through the interior of the sliding block and is threadedly connected to it.

[0006] A further improvement is that a rotary motor is fixedly installed on the upper side of one side of the lifting frame, a rotating mechanism is provided between the rotary motor and the cable reel, and lifting mechanisms are symmetrically provided on both sides of the top of the main frame.

[0007] A further improvement is that the rotating mechanism includes pulleys and toothed belts. One end of the cable reel is fixedly connected to the output end of the rotary motor with pulleys. Toothed belts are sleeved on the outer sides of the two pulleys, and the outer sides of the two pulleys mesh with the inner sides of the toothed belts.

[0008] A further improvement is made in that: the lifting mechanism includes rollers and cylinder No. 2, cylinder No. 2 is symmetrically fixedly installed on both sides of the top of the main frame, and a set of guide rods is also symmetrically fixedly connected to both sides of the top of the main frame, and the two sides of the top of the lifting frame are slidably connected to the two sets of guide rods respectively, and the output ends of the two cylinders No. 2 are fixedly connected to the two sides of the top of the lifting frame respectively.

[0009] A further improvement is that: rollers are symmetrically fixedly installed at the bottom of the main frame, and an angle adjustment mechanism is provided between the rotating arm and the main frame.

[0010] A further improvement is that the angle adjustment mechanism includes a first cylinder and a connecting arm. The first cylinder is hinged to one side of the main frame, and the output end of the first cylinder is fixedly connected to the connecting arm. The connecting arm is hinged to one side of the bottom of the rotating arm through a pin.

[0011] The beneficial effects of this utility model are as follows: the cable moves along the length of the rotating arm and passes between the moving roller and the fixed roller, and bends at 90° around a moving roller. The slide rail restricts the movement trajectory of the sliding block. The screw and the sliding block are threaded together. The handwheel drives the screw to rotate forward and backward, causing the sliding block to move linearly back and forth inside the slide rail. The sliding block drives the moving roller to approach the fixed roller. The moving roller and the fixed roller are respectively in contact with both sides of the cable to limit the cable. The moving roller and the fixed roller can rotate on their own, reducing the friction between them and the cable, making the cable move more smoothly. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0013] The components include: 1. Main frame; 2. Lifting frame; 3. Cable reel; 4. Rotating arm; 5. Fixed frame; 6. Slide chute; 7. Sliding block; 8. Moving roller; 9. Fixed roller; 10. Lead screw; 11. Cylinder No. 1; 12. Roller; 13. Cylinder No. 2; 14. Guide rod; 15. Rotary motor; 16. Pulley; 17. Toothed belt. Detailed Implementation

[0014] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0015] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a cable reel for the maintenance of mining electric shovels, including a main frame 1, a lifting frame 2, and a cable reel 3. The lifting frame 2 is provided on the inner side of the main frame 1, and the cable reel 3 is rotatably connected to the top of the lifting frame 2. A rotating arm 4 is hinged to the top of the main frame 1, and a fixed frame 5 is fixedly connected to one end of the rotating arm 4. A limiting mechanism is provided on one side of the fixed frame 5. A cable is wound on the outer side of the cable reel 3. The cable is unwound by rotating the cable reel 3, and one end of the cable is connected to the maintenance device to supply power to the maintenance device. During the movement of the cable, it passes through the inside of the limiting mechanism, and the limiting mechanism limits the cable to solve the problems in the prior art, such as the poor working environment of mining electric shovels, the cable reel being dragged and crushed, the deformation of the positioning groove of the reel causing the cable to get stuck, and the loose or even broken support rod bearing connection.

[0016] The limiting mechanism includes a slide frame 6, a sliding block 7, a moving roller 8, a fixed roller 9, and a lead screw 10. The slide frame 6 is fixedly connected to one side of the fixed frame 5. The sliding block 7 is slidably connected inside the slide frame 6. The fixed roller 9 is symmetrically rotatably connected to one side of the slide frame 6. The moving roller 8 is symmetrically rotatably connected to both ends of the sliding block 7. The lead screw 10 is rotatably connected inside the slide frame 6. One end of the lead screw 10 passes through the interior of the sliding block 7 and is threadedly connected to it. The cable moves along the length of the rotating arm 4, and the cable passes between the moving roller 8 and the fixed roller. The sliding block 7 passes between 9 and bends at 90° around a moving roller 8. The slide frame 6 restricts the movement trajectory of the sliding block 7. The lead screw 10 is threadedly engaged with the sliding block 7. The handwheel drives the lead screw 10 to rotate forward and backward, causing the sliding block 7 to move linearly back and forth inside the slide frame 6. The sliding block 7 drives the moving roller 8 to approach the fixed roller 9. The moving roller 8 and the fixed roller 9 respectively fit against the two sides of the cable to limit the cable. The moving roller 8 and the fixed roller 9 can rotate on their own to reduce the friction between them and the cable, making the cable move more smoothly.

[0017] A rotary motor 15 is fixedly installed above one side of the lifting frame 2. A rotating mechanism is provided between the rotary motor 15 and the cable reel 3. The rotating mechanism includes pulleys 16 and toothed belts 17. One end of the cable reel 3 and the output end of the rotary motor 15 are both fixedly connected to pulleys 16. The toothed belts 17 are sleeved on the outer sides of the two pulleys 16. The outer sides of the two pulleys 16 are engaged with the inner sides of the toothed belts 17. The output end of the rotary motor 15 is connected to one end of the cable reel 3 through the pulleys 16 and the toothed belts 17. The output end of the rotary motor 15 can drive the cable reel 3 to rotate. The rotary motor 15 is a forward and reverse rotating motor, which can change the clockwise or counterclockwise rotation of the cable reel 3, and automatically unwind or rewind the cable wound on the cable reel 3.

[0018] The main frame 1 has symmetrical lifting mechanisms on both sides of its top. Each lifting mechanism includes rollers 12 and cylinders 13. Cylinders 13 are fixedly installed symmetrically on both sides of the top of the main frame 1. A set of guide rods 14 are also fixedly connected symmetrically on both sides of the top of the main frame 1. The two sides of the top of the lifting frame 2 are slidably connected to the two sets of guide rods 14 respectively. The output ends of the two cylinders 13 are fixedly connected to the two sides of the top of the lifting frame 2 respectively. The output ends of the rollers 12 are integrated with the lifting frame 2. The output ends of the rollers 12 can drive the lifting frame 2 to move up and down along the guide rods 14. The cable reel 3 is installed on the top of the lifting frame 2 and can adaptively adjust the height of the cable according to the height of the maintenance device.

[0019] Rollers 12 are symmetrically fixedly installed at the bottom of the main frame 1. An angle adjustment mechanism is provided between the rotating arm 4 and the main frame 1. The angle adjustment mechanism includes a first cylinder 11 and a connecting arm. The first cylinder 11 is hinged to one side of the main frame 1. The output end of the first cylinder 11 is fixedly connected to the connecting arm. The connecting arm is hinged to one side of the bottom of the rotating arm 4 through a pin. The output end of the first cylinder 11 can drive the cable reel 3 to rotate around the top of the main frame 1 to adjust the angle of the cable laying on the cable reel 3 so that it is more compatible with the power connection position of the maintenance device.

[0020] The cable reel for the maintenance of the mining electric shovel has the cable moving along the length of the rotating arm 4 and passing between the moving roller 8 and the fixed roller 9. The cable bends at 90° around the moving roller 8. The chute frame 6 restricts the movement trajectory of the sliding block 7. The screw 10 is threadedly engaged with the sliding block 7. The handwheel drives the screw 10 to rotate forward and backward, causing the sliding block 7 to move linearly back and forth inside the chute frame 6. The sliding block 7 drives the moving roller 8 to move closer to the fixed roller 9. The moving roller 8 and the fixed roller 9 respectively fit against the two sides of the cable to limit the cable movement. The moving roller 8 and the fixed roller 9 can rotate on their own to reduce the friction between them and the cable, making the cable move more smoothly.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cable reel for maintaining a mining electric shovel, comprising a main frame (1), a lifting frame (2), and a cable reel (3), characterized in that: The main frame (1) is provided with a lifting frame (2) on the inner side. A cable reel (3) is rotatably connected to the top of the lifting frame (2). A rotating arm (4) is hinged to the top of the main frame (1). A fixed frame (5) is fixedly connected to one end of the rotating arm (4). A limiting mechanism is provided on one side of the fixed frame (5). The limiting mechanism includes a slide frame (6), a sliding block (7), a moving roller (8), a fixed roller (9), and a screw (10). The slide frame (6) is fixedly connected to one side of the fixed frame (5). The sliding block (7) is slidably connected inside the slide frame (6). The fixed roller (9) is symmetrically rotatably connected to one side of the slide frame (6). The moving roller (8) is symmetrically rotatably connected to both ends of the sliding block (7). The screw (10) is rotatably connected inside the slide frame (6). One end of the screw (10) passes through the interior of the sliding block (7) and is threadedly connected to it.

2. The cable reel for maintaining a mining electric shovel according to claim 1, characterized in that: A rotary motor (15) is fixedly installed on one side of the lifting frame (2). A rotating mechanism is provided between the rotary motor (15) and the cable reel (3). Lifting mechanisms are symmetrically provided on both sides of the top of the main frame (1).

3. The cable reel for maintaining a mining electric shovel according to claim 2, characterized in that: The rotating mechanism includes pulleys (16) and toothed belts (17). One end of the cable reel (3) and the output end of the rotary motor (15) are both fixedly connected to pulleys (16). Toothed belts (17) are sleeved on the outer sides of the two pulleys (16), and the outer sides of the two pulleys (16) mesh with the inner side of the toothed belts (17).

4. The cable reel for maintaining a mining electric shovel according to claim 2, characterized in that: The lifting mechanism includes rollers (12) and cylinders (13). Cylinders (13) are symmetrically fixed on both sides of the top of the main frame (1). A set of guide rods (14) are also symmetrically fixed on both sides of the top of the main frame (1). The two sides of the top of the lifting frame (2) are slidably connected to the two sets of guide rods (14). The output ends of the two cylinders (13) are fixedly connected to the two sides of the top of the lifting frame (2).

5. The cable reel for maintaining a mining electric shovel according to claim 1, characterized in that: The bottom of the main frame (1) is symmetrically fixed with rollers (12), and an angle adjustment mechanism is provided between the rotating arm (4) and the main frame (1).

6. The cable reel for maintaining a mining electric shovel according to claim 5, characterized in that: The angle adjustment mechanism includes a first cylinder (11) and a connecting arm. The first cylinder (11) is hinged to one side of the main frame (1). The output end of the first cylinder (11) is fixedly connected to the connecting arm. The connecting arm is hinged to one side of the bottom of the rotating arm (4) through a pin.

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