A cable handling device for a coal mining machine

Abstract

The utility model relates to the technical field of coal mining, especially a cable supporting device for a coal mining machine, which is designed by setting fixing screw rods, threaded barrels, worm wheels, worms, linkage rods, driving gears and driven gears, and is embodied in that the driving gear is rotated by a rotating hand wheel, the driving gear is engaged with the driven gear, the two worms are connected through the linkage rod, the worm is engaged with the worm wheel, the worm wheel is arranged below the fixing screw rod, the fixing screw rod is further rotated, the fixing screw rod is threadedly connected with the threaded barrel, the lifting plate can be lifted, the support height of the cable can be flexibly adjusted according to the actual construction condition on site, and the applicable scenarios are expanded.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a cable support device for a coal mining machine. Background Technology

[0002] Coal mining refers to the process of extracting coal resources from the earth's surface or crust, encompassing both open-pit and underground mining methods. Underground mining often employs the longwall mining method, which involves five major processes: coal breaking, coal loading, coal transportation, support, and goaf treatment. The coal mining machine is the core equipment in this process, playing a crucial role in efficiently and safely cutting, crushing, and transporting coal. When the coal mining machine moves across the working face, it needs to drag power cables and water pipes. Direct dragging can easily cause repeated bending, squeezing, and collisions of the cables, leading to electric shock hazards, cable damage, or water supply interruptions. The cable-carrying equipment uses a support frame, locking mechanism, and adjusting components to fix the cables, ensuring that they only bend once and are automatically dragged along with the coal mining machine, avoiding secondary bending.

[0003] Existing patent CN213265101U discloses a cable support frame for a coal mining machine, including a cable support frame body. Both ends of the cable support frame body are rotatably connected to adjusting plates via connecting pins. Both ends of the cable support frame body are welded and fixed with second arc-shaped plates. A first arc-shaped plate is located at the middle position inside the cable support frame body. Both ends of the first arc-shaped plate are welded and fixed with sliders. A clamping opening is integrally formed on the outer side of the first arc-shaped plate. By designing second arc-shaped plates at both ends and a first arc-shaped plate at the middle position inside the cable support frame body, the cable support frame is designed to prevent instability during cable installation, avoiding cable swaying and potential hazards. The cable can be placed inside the cable support frame body on the surface of the second arc-shaped plate. The adjusting plates are then closed and fixed. After fixing, the handwheel engages the threaded rod, causing the slider to slide inside the groove, placing the first arc-shaped plate on the outer surface of the cable.

[0004] However, in the aforementioned existing technologies, since the height of the cable support frame is fixed, it is difficult to flexibly adjust the support height of the cable according to the actual construction conditions on site, which limits its applicable scenarios. Utility Model Content

[0005] The purpose of this utility model is to provide a cable support device for coal mining machines, which aims to solve the technical problem that the height of the cable support frame is fixed and it is difficult to flexibly adjust the support height of the cable according to the actual construction conditions on site, which leads to a limited range of applicable scenarios.

[0006] To achieve the above objectives, this utility model employs a cable-supporting device for a coal mining machine, comprising multiple lifting components, a lifting plate, and a fixing plate. Two threaded cylinders are disposed below the lifting plate. Fixed screws are rotatably mounted at both ends of the fixing plate via bearings. Worm gears are disposed below the fixed screws. Two bottom mounting boxes are disposed below the fixing plate, each containing a worm gear rotatably mounted, with the worm gear extending into the bottom mounting box and meshing with the worm gear. The two worm gears between the two bottom mounting boxes are connected by a linkage rod, one end of which is provided with a driven gear. A side mounting box is disposed on the outer side of the fixing plate, containing a driving gear rotatably mounted. The driving gear is rotated via a handwheel, meshing with the driven gear, which extends into the side mounting box. Multiple lifting components are respectively disposed on the lifting plate, and two fixing screws are threadedly connected to their corresponding threaded cylinders and located within the threaded cylinders.

[0007] The lifting assembly includes multiple lifting plates and a mounting frame. Each lifting plate has two sliding rods on its back. Each sliding rod has a spring and a base plate. The multiple lifting plates are slidably connected to the mounting frame via the sliding rods and are located on the mounting frame. The springs abut against the inner side of the mounting frame, and the base plates abut against the outer side of the mounting frame. The mounting frame is fixedly connected to the lifting plate and is located on the lifting plate.

[0008] The multiple supporting plates are arranged in an enclosing shape within the mounting frame.

[0009] The fixing plate is provided with multiple limiting rods at both ends, and the multiple limiting rods are arranged around the outside of the corresponding fixing screw. The outer side of the threaded cylinder has multiple limiting holes, and the multiple limiting rods are inserted into the corresponding limiting holes.

[0010] The number of external teeth of the driving gear is less than the number of external teeth of the driven gear, and the driving gear is located above the driven gear.

[0011] This utility model discloses a cable-supporting device for a coal mining machine. The design comprises a fixed screw, a threaded cylinder, a worm gear, a worm, a linkage rod, a driving gear, and a driven gear. Specifically, rotating the handwheel drives the driving gear to rotate. Since the driving gear meshes with the driven gear, and the two worms are connected via the linkage rod, and the worm meshes with the worm gear, and the worm gear is located below the fixed screw, this drives the fixed screw to rotate. Furthermore, because the fixed screw is threadedly connected to the threaded cylinder, it can achieve… The lifting plate allows for flexible adjustment of the cable support height based on actual on-site construction conditions, expanding its applicability. Simultaneously, the lifting plate in the lifting assembly is slidably connected to the mounting frame via the sliding rod, and the spring and base plate provide buffering and limiting functions. Multiple lifting plates are arranged in an enclosing shape, better accommodating cables of different specifications and further enhancing the equipment's applicability. Furthermore, the limiting rods at both ends of the fixed plate are inserted into the limiting holes on the outside of the threaded cylinder, ensuring stability during the lifting process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional view of the present invention.

[0014] Figure 2 This is the front view of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0016] Figure 4 This is the utility model Figure 3 A magnified view of a section at point B in the middle.

[0017] Figure 5 This is the utility model Figure 2 A cross-sectional view of the CC line.

[0018] Figure 6 This is the utility model Figure 2 A cross-sectional view of the DD line.

[0019] Figure 7 This is the utility model Figure 6A cross-sectional view of the EE line.

[0020] 1-Lifting plate, 2-Fixed plate, 3-Threaded cylinder, 4-Fixed screw, 5-Worm gear, 6-Bottom mounting box, 7-Worm, 8-Driven gear, 9-Linkage rod, 10-Side mounting box, 11-Drive gear, 12-Handwheel, 13-Lifting plate, 14-Mounting bracket, 15-Slide rod, 16-Spring, 17-Bottom plate, 18-Limit rod, 19-Limit hole. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0022] Please see Figures 1 to 7 This utility model provides a cable-supporting device for a coal mining machine, including multiple lifting components, a lifting plate 1, and a fixing plate 2. Two threaded cylinders 3 are disposed below the lifting plate 1. Fixing screws 4 are rotatably mounted on both ends of the fixing plate 2 via bearings. Worm gears 5 are disposed below the fixing screws 4. Two bottom mounting boxes 6 are disposed below the fixing plate 2. A worm gear 7 is rotatably mounted in each bottom mounting box 6, and the worm gear 5 extends into the bottom mounting box 6. The worm gear 7 meshes with the worm wheel 5. Two... The worm gear 7 is connected by a linkage rod 9. One end of the linkage rod 9 is provided with a driven gear 8. A side mounting box 10 is provided on the outer side of the fixing plate 2. A driving gear 11 is rotatably arranged inside the side mounting box 10. The driving gear 11 is rotated by a handwheel 12. The driving gear 11 meshes with the driven gear 8. The driven gear 8 extends into the side mounting box 10. Multiple lifting components are respectively arranged on the lifting plate 1. Two fixing screws 4 are respectively threadedly connected to the corresponding threaded cylinders 3 and are located inside the threaded cylinders 3.

[0023] In this embodiment, when it is necessary to adjust the cable support height according to the actual construction conditions on site, the handwheel 12 is turned to drive the drive gear 11 to rotate. Then, through gear meshing and the transmission of the linkage rod 9, the worm gear 7 drives the worm wheel 5 to rotate, ultimately realizing the rotation of the fixing screw 4. Since the fixing screw 4 is threadedly connected to the threaded cylinder 3 below the lifting plate 1, the rotation of the fixing screw 4 will drive the lifting plate 1 to rise or fall, thereby flexibly adjusting the height of the lifting assembly. This effectively solves the problem of the fixed height and limited application scenarios of traditional cable support frames, and greatly improves the versatility and practicality of the equipment in different construction environments.

[0024] Furthermore, the lifting assembly includes multiple lifting plates 13 and a mounting frame 14. Each lifting plate 13 has two sliding rods 15 on its back side. Each sliding rod 15 is provided with a spring 16 and a base plate 17. The multiple lifting plates 13 are slidably connected to the mounting frame 14 through the sliding rods 15 and are located on the mounting frame 14. The springs 16 abut against the inner side of the mounting frame 14, and the base plate 17 abuts against the outer side of the mounting frame 14. The mounting frame 14 is fixedly connected to the lifting plate 1 and is located on the lifting plate 1.

[0025] In this embodiment, this design allows the supporting plate 13 to have a certain elastic buffering capacity when supporting the cable. When the cable is subjected to external force and shakes or shifts, the spring 16 can absorb some energy, reducing the impact and damage to the cable, while ensuring that the supporting plate 13 can fit tightly against the cable and provide stable support. Moreover, the sliding connection between the slide rod 15 and the mounting bracket 14 facilitates fine-tuning of the position of the supporting plate 13 according to the actual specifications and shape of the cable, enabling the equipment to better adapt to the support requirements of different types of cables, further enhancing the applicability and flexibility of the equipment.

[0026] Furthermore, the plurality of the supporting plates 13 are arranged in an enclosing shape within the mounting frame 14.

[0027] In this embodiment, this layout can surround and support the cable from multiple directions. Compared with the traditional single-point or single-sided support method, it greatly increases the contact area with the cable, making the cable more uniformly stressed and effectively avoiding deformation or damage to the cable due to excessive local stress.

[0028] Furthermore, both ends of the fixing plate 2 are provided with a plurality of limiting rods 18, and the plurality of limiting rods 18 are arranged around the outer side of the corresponding fixing screw 4. The outer side of the threaded cylinder 3 has a plurality of limiting holes 19, and the plurality of limiting rods 18 are inserted into the corresponding limiting holes 19.

[0029] In this embodiment, during the lifting process of the lifting plate 1, the cooperation of the limiting rod 18 and the limiting hole 19 plays a precise guiding and limiting role, which can ensure that the lifting plate 1 always rises or falls smoothly in the vertical direction, avoiding the problem of the lifting plate 1 shifting or shaking due to the rotation of the fixing screw 4.

[0030] Furthermore, the number of external teeth of the driving gear 11 is less than the number of external teeth of the driven gear 8, and the driving gear 11 is located above the driven gear 8.

[0031] In this embodiment, when the handwheel 12 is turned to drive the drive gear 11 to rotate, due to the difference in the number of teeth, the driven gear 8 will rotate at a lower speed, and then drive the fixed screw 4 to rotate slowly through the linkage rod 9 and the worm gear 7 and worm wheel 5 transmission system, so as to achieve fine adjustment of the lifting plate 1.

[0032] When using this utility model, first place the equipment in a suitable position to ensure that the fixing plate 2 is securely installed; when it is necessary to adjust the cable support height to adapt to the actual construction conditions on site, the operator turns the handwheel 12, which drives the drive gear 11 in the side mounting box 10 to rotate. Since the drive gear 11 meshes with the driven gear 8 connected by the linkage rod 9, and the driven gear 8 extends to the worm 7 that meshes with the worm wheel 5 below the fixing screw 4 in the bottom mounting box 6, it will sequentially drive the worm 7 and the worm wheel 5 to rotate, thereby causing the fixing screw 4 connected to the worm wheel 5 to rotate; and since the fixing screw 4 is connected to the lifting plate 1 The threaded cylinder 3 below is threadedly connected, and the limiting rods 18 at both ends of the fixing plate 2 are inserted into the limiting holes 19 on the outside of the threaded cylinder 3 to play a guiding and limiting role. Therefore, the rotation of the fixing screw 4 will drive the lifting plate 1 to rise or fall smoothly, thereby adjusting the height of the mounting frame 14 set on the lifting plate 1 and the multiple lifting plates 13 installed in a surrounding shape within the mounting frame 14. When the cable is placed on the multiple lifting plates 13, the spring 16 and the base plate 17 on the slide rod 15 on the back of the lifting plate 13 can make the lifting plate 13 slide elastically according to the cable specifications and stress conditions, providing stable and buffered support for the cable.

[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A cable-supporting device for a coal mining machine, characterized in that, The device includes multiple lifting components, a lifting plate, and a fixing plate. Two threaded cylinders are located below the lifting plate. Both ends of the fixing plate are rotatably mounted with fixing screws via bearings. Worm gears are located below the fixing screws. Two bottom mounting boxes are located below the fixing plate. A worm gear is rotatably mounted within each bottom mounting box, and the worm gear extends into the bottom mounting box, meshing with the worm gear. The two worm gears between the two bottom mounting boxes are connected by a linkage rod, one end of which is equipped with a driven gear. A side mounting box is located on the outer side of the fixing plate, and a driving gear is rotatably mounted within the side mounting box. The driving gear is rotated via a handwheel, meshing with the driven gear, which extends into the side mounting box. Multiple lifting components are respectively mounted on the lifting plate. The two fixing screws are threadedly connected to their corresponding threaded cylinders and located within the threaded cylinders.

2. The cable support device for a coal mining machine as described in claim 1, characterized in that, The lifting assembly includes multiple lifting plates and a mounting frame. Each lifting plate has two sliding rods on its back. Each sliding rod has a spring and a base plate. The multiple lifting plates are slidably connected to the mounting frame via the sliding rods and are located on the mounting frame. The springs abut against the inner side of the mounting frame, and the base plates abut against the outer side of the mounting frame. The mounting frame is fixedly connected to the lifting plate and is located on the lifting plate.

3. The cable support device for a coal mining machine as described in claim 2, characterized in that, Multiple supporting plates are arranged in an enclosing shape within the mounting frame.

4. The cable-supporting device for a coal mining machine as described in claim 3, characterized in that, Both ends of the fixing plate are provided with multiple limiting rods, and the multiple limiting rods are arranged around the outside of the corresponding fixing screw. The outside of the threaded cylinder has multiple limiting holes, and the multiple limiting rods are inserted into the corresponding limiting holes.

5. The cable-supporting device for a coal mining machine as described in claim 4, characterized in that, The number of external teeth of the driving gear is less than the number of external teeth of the driven gear, and the driving gear is located above the driven gear.

Images