Shunting winch for coal mine
By designing protective cartridges and guide components on the shunt winch, the friction between the guide wheel and the wire rope is reduced and the guide wheel is kept tight, which solves the problems of wire rope jumping and friction damage, extends the service life and protects the Wire rope.
Patent Information
- Application Number
- CN202421198657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing shunt winch guide mechanism is prone to cause wire rope to jump and friction damage during use, and the winch is exposed to the outside and is susceptible to water vapor and dust, shortening its service life.
A coal mine shunt winch consisting of a protective cartridge and a guide assembly is designed, and the protective cartridge is equipped with a winch and a guide mechanism is provided. The friction between the guide wheel and the wire rope is reduced through the arcuate groove and the buffer spring, and the limiting plate and Extended bolts keep the guide wheels tightly to prevent disengagement and friction.
It effectively reduces the friction between the guide wheel and the wire rope, prevents the wire rope from being disengaged and damaged, and protects the wire rope from air erosion, extending the service life.
Smart Images
Figure CN222273972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shunting winches, in particular to a shunting winch for coal mines. Background Art
[0002] The shunting winch is an inorganic rope friction transmission, which is matched with auxiliary machines such as guide wheels, supporting rollers, pressure rollers, and pulleys to form a train system. The wire rope is wound on the winch friction capstan for several turns and then passed through the guide mechanism, pressure roller, and pulley, and fixed at both ends. It can realize forward and reverse bidirectional heavy-load traction. It is suitable for dispatching trains when loading and unloading goods in railway train transportation places such as coal mines, coal washing plants, power plants, cement plants, and ports. However, when using the guide mechanism to guide the wire rope, in order to reduce the friction force on the wire rope and extend the service life of the wire rope, most of the existing guide mechanisms clamp the upper and lower ends of the wire rope through two guide wheels to limit and guide it, and adjust the position of the guide wheel fixing seat when the guide wheel is subjected to force, so that the guide wheel fixing seat presses the spring, and the spring buffers the force on the guide wheel and its fixing seat, thereby reducing the friction between the wire rope and the guide wheel.
[0003] However, since the position of the upper guide wheel is fixed and the height of the lower guide wheel is adjustable in the two guide wheels distributed up and down in the existing guide mechanism, when the wire rope presses the lower guide wheel, the position of the lower guide wheel changes, which will cause a large gap between the lower guide wheel and the upper guide wheel, making it easy for the wire rope to jump out of the lower guide wheel and generate friction with the fixed frame of the guide mechanism, which is not conducive to the use of the guide mechanism. In addition, most of the capstans on the existing shunting winches are exposed to the outside and cannot protect the steel wire wound thereon, making it easy for the steel wire rope wound thereon to be corroded by water vapor and dust in the air, reducing the service life of the steel wire rope. Therefore, those skilled in the art provide a shunting winch for coal mines to solve the problems raised in the above background technology. Utility Model Content
[0004] The purpose of the utility model is to provide a shunting winch for coal mines to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A shunting winch for coal mines comprises: a winch body and a guide assembly, wherein the outer wall of the winch body is provided with a protective cylinder surrounding the outside of the capstan, and the top of the protective cylinder is provided with a through hole for the passage of a wire rope, and the guide assembly comprises a fixed seat and a limit frame, wherein the fixed seat is installed on the top of the protective cylinder and is located on one side of the through hole, and the limit frame is arranged above the fixed seat, and two vertical plates which are symmetrically distributed are arranged on the top of the fixed seat, and a limit plate is arranged at a position corresponding to the vertical plate at the bottom of the limit frame, and the limit plate is plugged into the inside of the vertical plate. A buffer spring is arranged between the lower end surface of the limit plate and the inner wall of the vertical plate, and two guide wheels distributed up and down are arranged between the two limit plates. The two guide wheels are respectively engaged with the upper and lower ends of the wire rope, and both ends of the guide wheels rotate with limit blocks. A sliding groove is opened inside the limit plate, and the limit block is slidably installed inside the sliding groove, and an extension bolt is arranged at the top of the limit frame at a position corresponding to the limit plate, the extension bolt passes through the limit frame, extends to the inside of the sliding groove, and is threadedly installed inside the two limit blocks and the limit plate.
[0007] Preferably, limiting bolts are arranged around the protective tube, and the limiting bolts penetrate the protective tube and are threadedly installed inside the winch body.
[0008] Preferably, a hollow groove is opened inside the vertical plate, the limit plate is inserted into the hollow groove, and the two ends of the buffer spring are respectively installed on the lower end surface of the limit plate and the inner wall of the hollow groove, and a limit ear is provided at one end of the outer wall of the limit plate located inside the hollow groove, and the end surface area of the limit ear is larger than the opening area of the vertical plate.
[0009] Preferably, an arc-shaped groove is provided inside the guide wheel, and both guide wheels are engaged with the upper and lower ends of the wire rope through the arc-shaped groove, and the upper guide wheel is tightly attached to the upper end surface of the lower guide wheel.
[0010] Preferably, both ends of the outer wall of the guide wheel are rotatably mounted with a rotating shaft, the other end of the rotating shaft is mounted on the side wall of the limit block, the limit block is rotatably mounted on the end of the guide wheel through the rotating shaft, and a through groove is opened at the position of the side wall of the vertical plate corresponding to the rotating shaft, and the rotating shaft is slidably mounted inside the vertical plate through the through groove.
[0011] Preferably, a slot is provided at a position of the bottom of the limiting frame corresponding to the limiting plate, and the limiting plate is inserted into the slot.
[0012] Preferably, the upper end surfaces of the two limit blocks and the bottom of the slide groove are respectively provided with a second threaded hole and a first threaded hole, and the lengthened bolt is threadedly installed inside the two limit blocks and the limit plate through the second threaded hole and the first threaded hole.
[0013] Compared with the prior art, the advantages of the utility model are:
[0014] By sleeved a protective cylinder on the outside of the winch and arranging a guide mechanism on the protective cylinder, when in use, the wire rope wound on the winch can be extended from the through hole to the outside of the protective cylinder, and the wire rope is clamped between the two guide wheels through two arc-shaped grooves, so that the wire rope presses the guide wheel located below, and then the guide wheel located below drives the limit blocks installed at both ends thereof to move downward, and the limit blocks press the limit plates to move downward in the empty grooves and squeeze the buffer springs, and the buffer springs buffer the pressure on the guide wheels, reducing the friction between the guide wheels and the wire rope, avoiding the damage of the wire rope and the guide wheels due to the large friction between the wire rope and the guide wheels, and realizing the protection of the wire rope and the guide wheels. At the same time, the limit plate in the downward displacement can drive the limit plate through the guide wheels. The upper guide wheel on which the extension bolt and the limit block are installed is displaced downward, so that the upper guide wheel is always in close contact with the top of the lower guide wheel to prevent the two guide wheels from detaching from each other. This not only avoids the wire rope from detaching from the lower guide wheel and being engaged in the gap between the two guide wheels, causing the wire rope to deviate, but also avoids the trouble of friction between the wire rope and the frame caused by the wire rope being engaged in the gap between the two guide wheels, thereby ensuring the guiding work of the wire rope. In addition, the winch can be stored in a protective tube for use, reducing the contact between the wire rope on the winch and the outside air, avoiding the damage of the wire rope due to long-term contact with water vapor and dust in the outside air, further realizing the protection of the wire rope, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a shunting winch according to an embodiment of the utility model;
[0016] Figure 2 It is a three-dimensional schematic diagram of a guide assembly according to an embodiment of the utility model;
[0017] Figure 3 It is a three-dimensional schematic diagram of a limit frame according to an embodiment of the utility model;
[0018] Figure 4 It is a three-dimensional schematic diagram of a guide wheel according to an embodiment of the utility model;
[0019] Figure 5 The figure is a schematic diagram of the connection between the vertical plate and the limiting plate according to an embodiment of the utility model.
[0020] In the figure: 1. winch body; 11. protective tube; 111. through opening; 12. limit bolt; 2. guide assembly; 21. fixed seat; 211. vertical plate; 212. empty slot; 213. through slot; 22. limit frame; 221. limit plate; 222. slide slot; 223. limit ear; 224. first threaded hole; 225. slot; 23. buffer spring; 24. guide wheel; 241. arc groove; 242. rotating shaft; 25. limit block; 251. second threaded hole; 26. extension bolt. DETAILED DESCRIPTION
[0021] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.
[0022] Combination Figure 1 As shown, a protective tube 11 is arranged on the outer wall of the winch body 1 around the outside of the winch, a through hole 111 for the passage of the wire rope is arranged on the top of the protective tube 11, and limiting bolts 12 are arranged around the protective tube 11. The limiting bolts 12 pass through the protective tube 11 and are threadedly installed inside the winch body 1.
[0023] In one embodiment, when installing the protective tube 11 on the winch body 1, the protective tube 11 can be firstly put on the outside of the winch, and one end of the wire rope can be extended from the through opening 111 to the outside of the protective tube 11, and then the limit bolts 12 around the protective tube 11 are successively screwed to fix the limit bolts 12 inside the winch body 1, thereby completing the installation of the protective tube 11. The winch can be stored in the protective tube 11 for use, reducing the contact between the wire rope on the winch and the outside air, avoiding the damage of the wire rope caused by long-term contact between the wire rope and the water vapor and dust in the outside air, and further realizing the protection of the wire rope. In addition, the wire rope extends from the through opening 111 to the outside of the protective tube 11, and passes through the guide mechanism, pressure roller, pulley, etc. for use. The protective tube 11 will not interfere with the use of the wire rope, and is highly practical.
[0024] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the guide assembly 2 includes a fixed seat 21 and a limit frame 22. The fixed seat 21 is installed on the top of the protective tube 11 and is located on one side of the through opening 111. The limit frame 22 is arranged above the fixed seat 21, and two symmetrically distributed vertical plates 211 are arranged on the top of the fixed seat 21. A limit plate 221 is arranged at a position corresponding to the vertical plate 211 at the bottom of the limit frame 22. An empty groove 212 is opened inside the vertical plate 211. The limit plate 221 is inserted into the empty groove 212, and a buffer spring 23 is arranged between the lower end surface of the limit plate 221 and the inner wall of the empty groove 212. Two guide wheels 24 distributed up and down are arranged between the two limit plates 221. The guide wheels 24 are opened inside with an arc groove 241. Each guide wheel 24 is engaged with the upper and lower ends of the wire rope through an arc groove 241, and the upper guide wheel 24 is tightly attached to the upper end surface of the lower guide wheel 24. Both ends of the guide wheel 24 rotate the limit blocks 25. A slide groove 222 is provided inside the limit plate 221. The limit block 25 is slidably installed inside the slide groove 222. An extension bolt 26 is provided at the top of the limit frame 22 corresponding to the position of the limit plate 221. A second threaded hole 251 and a first threaded hole 224 are respectively provided on the upper end surfaces of the two limit blocks 25 and the bottom of the slide groove 222. The extension bolt 26 is threadedly installed inside the two limit blocks 25 and the limit plate 221 through the second threaded hole 251 and the first threaded hole 224.
[0025] In one embodiment, when assembling the fixing seat 21, the limiting frame 22 and the guide wheel 24, the limiting blocks 25 at both ends of one of the guide wheels 24 can be slidably installed in the slide grooves 222 in the two limiting plates 221, respectively, so that the guide wheel 24 slides downward between the two limiting plates 221, and then the limiting blocks 25 at both ends of the other guide wheel 24 are slidably installed in the slide grooves 222 in the two limiting plates 221, so that the two guide wheels 24 are distributed up and down, and the two guide wheels 24 are clamped at the upper and lower ends of the wire rope through the arc grooves 241, and finally, the two limiting plates 221 are respectively plugged into the limiting frames. 22, and tighten the extension bolt 26 so that the extension bolt 26 is threadedly installed in the two limit blocks 25 and the limit plate 221, thereby completing the assembly of the guide assembly 2, and the two guide wheels 24 can be fastened to the upper and lower ends of the wire rope to prevent the two guide wheels 24 from detaching from each other. This not only avoids the deviation of the wire rope caused by the wire rope detaching from the guide wheel 24 located below and being engaged in the gap between the two guide wheels 24, but also avoids the trouble of friction between the wire rope and the frame caused by the wire rope being engaged in the gap between the two guide wheels 24, thereby ensuring the guiding work of the wire rope.
[0026] In one embodiment, when guiding the wire rope, the wire rope presses the guide wheel 24 located below in the arc groove 241, so that the guide wheel 24 located below can drive the limit blocks 25 installed at both ends thereof to move downward, and the limit blocks 25 press the limit plates 221 to move downward in the empty groove 212 and squeeze the buffer spring 23. The buffer spring 23 buffers the pressure on the guide wheel 24, reducing the friction between the guide wheel 24 and the wire rope, thereby avoiding damage to the wire rope and the guide wheel 24 due to the large friction between the wire rope and the guide wheel 24, thereby protecting the wire rope and the guide wheel 24.
[0027] In one embodiment, when the wire rope presses the guide wheel 24 located below to move downward, the limit plate 221 that follows the guide wheel 24 located below to move downward can drive the guide wheel 24 located above, which is installed thereon through the lengthened bolt 26 and the limit block 25, to move downward, so that the guide wheel 24 located above is always in close contact with the top of the guide wheel 24 located below, preventing the two guide wheels 24 from detaching from each other, and preventing the wire rope from detaching from the guide wheel 24 located below and being engaged in the gap between the two guide wheels 24, thereby ensuring the guidance of the wire rope. In addition, the rotating shaft 242 installed between the guide wheel 24 and the limit block 25 can slide in the through groove 213, and the rotating shaft 242 will not interfere with the vertical plate 211, thereby ensuring the adjustment of the position of the guide wheel 24 installed on the limit plate 221.
[0028] In one embodiment, since the end surface area of the limiting ear 223 is larger than the opening area of the vertical plate 211, when the guide mechanism is not used, the limiting plate 221 can slide upward in the empty slot 212 under the elastic force of the buffer spring 23, and the limiting ear 223 limits the limiting plate 221 to prevent the limiting plate 221 from escaping from the empty slot 212, thereby ensuring the fixation of the position of the guide wheel 24.
[0029] The working principle of the utility model is as follows: when the protective tube 11 and the guide assembly 2 are installed on the winch body 1 for use, the protective tube 11 can be firstly mounted on the outside of the winch, and one end of the wire rope can be extended from the through port 111 to the outside of the protective tube 11, and then the limit bolts 12 around the protective tube 11 are screwed in turn, the limit bolts 12 are fixed to the inside of the winch body 1, and the winch is stored in the protective tube 11 for use, thereby reducing the contact between the wire rope on the winch and the external air, and avoiding the situation where the wire rope is damaged due to long-term contact with water vapor and dust in the external air, and then the wire rope is allowed to press the guide wheel 24 located below in the arc groove 241, so that the guide wheel 24 located below can drive the limit blocks 25 installed at both ends thereof to move downward, and the limit blocks 25 can press the limit plate 221 to move downward in the empty groove 212 and squeeze the buffer spring 23, and the buffer spring 23 can press the guide wheel The pressure on the guide wheel 24 is buffered, the friction between the guide wheel 24 and the wire rope is reduced, and the wire rope and the guide wheel 24 are avoided from being damaged due to the large friction between the wire rope and the guide wheel 24. At the same time, the limit plate 221 following the downward displacement of the guide wheel 24 at the bottom can drive the guide wheel 24 at the top installed thereon by the extension bolt 26 and the limit block 25 to move downward, so that the guide wheel 24 at the top is always closely attached to the top of the guide wheel 24 at the bottom, and the two guide wheels 24 can be fastened to the upper and lower ends of the wire rope to prevent the two guide wheels 24 from detaching from each other. Not only does it avoid the deviation of the wire rope caused by the wire rope detaching from the guide wheel 24 at the bottom and being engaged in the gap between the two guide wheels 24, it also avoids the trouble of friction between the wire rope and the frame caused by the wire rope being engaged in the gap between the two guide wheels 24, thereby ensuring the guiding work of the wire rope.
[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A shunting winch for coal mines, comprising: A winch body (1) and a guide assembly (2), characterized in that the outer wall of the winch body (1) is provided with a protective tube (11) surrounding the outside of the winch, and the top of the protective tube (11) is provided with a through hole (111) for the passage of the wire rope, and the guide assembly (2) comprises a fixed seat (21) and a limit frame (22), the fixed seat (21) is installed on the top of the protective tube (11) and is located on one side of the through hole (111), the limit frame (22) is arranged above the fixed seat (21), and two vertical plates (211) distributed symmetrically are arranged on the top of the fixed seat (21), and a limit plate (221) is arranged at a position corresponding to the vertical plate (211) at the bottom of the limit frame (22), and the limit plate (221) is inserted into the inside of the vertical plate (211), and the limit plate A buffer spring (23) is arranged between the lower end surface of the limit plate (221) and the inner wall of the vertical plate (211), and two guide wheels (24) distributed up and down are arranged between the two limit plates (221), and the two guide wheels (24) are respectively engaged with the upper and lower ends of the wire rope, and both ends of the guide wheels (24) rotate with limit blocks (25), and a sliding groove (222) is provided inside the limit plate (221), and the limit block (25) is slidably installed inside the sliding groove (222), and an extension bolt (26) is arranged at the top of the limit frame (22) at a position corresponding to the limit plate (221), and the extension bolt (26) passes through the limit frame (22) and extends to the inside of the sliding groove (222) and is threadedly installed inside the two limit blocks (25) and the limit plate (221).
2. A shunting winch for coal mines according to claim 1, characterized in that: Limiting bolts (12) are arranged around the protective tube (11), and the limiting bolts (12) penetrate the protective tube (11) and are threadedly mounted inside the winch body (1).
3. A shunting winch for coal mines according to claim 1, characterized in that: An empty slot (212) is provided inside the vertical plate (211), the limiting plate (221) is inserted into the empty slot (212), and the two ends of the buffer spring (23) are respectively mounted on the lower end surface of the limiting plate (221) and the inner wall of the empty slot (212), and a limiting lug (223) is provided at one end of the outer wall of the limiting plate (221) located inside the empty slot (212), and the end surface area of the limiting lug (223) is larger than the opening area of the vertical plate (211).
4. A shunting winch for coal mine according to claim 1, characterized in that: An arc-shaped groove (241) is provided inside the guide wheel (24), and the two guide wheels (24) are engaged with the upper and lower ends of the wire rope through the arc-shaped groove (241), and the guide wheel (24) located at the upper end is tightly attached to the upper end surface of the guide wheel (24) located at the lower end.
5. A shunting winch for coal mine according to claim 1, characterized in that: A rotating shaft (242) is rotatably mounted on both ends of the outer wall of the guide wheel (24), the other end of the rotating shaft (242) is mounted on the side wall of the limit block (25), the limit block (25) is rotatably mounted on the end of the guide wheel (24) through the rotating shaft (242), and a through groove (213) is provided at a position of the side wall of the vertical plate (211) corresponding to the rotating shaft (242), and the rotating shaft (242) is slidably mounted inside the vertical plate (211) through the through groove (213).
6. A shunting winch for coal mines according to claim 1, characterized in that: A slot (225) is provided at a position on the bottom of the limiting frame (22) corresponding to the limiting plate (221), and the limiting plate (221) is inserted into the inside of the slot (225).
7. A shunting winch for coal mines according to claim 1, characterized in that: A second threaded hole (251) and a first threaded hole (224) are respectively provided on the upper end surfaces of the two limit blocks (25) and the bottom of the slide groove (222), and the extension bolt (26) is threadedly installed inside the two limit blocks (25) and the limit plate (221) through the second threaded hole (251) and the first threaded hole (224).