Cutting head protection equipment for coal mining tunneling

Abstract

The utility model is suitable for the technical field of protection equipment, and provides cutting head protection equipment for coal mining tunneling, which comprises a main supporting rod, a supporting rod, an adjusting mechanism, a protection plate and a linkage mechanism, the main supporting rod is connected to the coal mining heading machine, the supporting rods are arranged on the periphery of the main supporting rod through the adjusting mechanism, the multiple supporting rods are arranged, and the supporting rods and the main supporting rod integrally form a circular structure. According to the scheme, the adjusting mechanism and the linkage mechanism are arranged, the cutting head of the heading machine is isolated and protected from the outside through the protection plate, meanwhile, the adjusting mechanism is arranged, a first linkage rod and a second linkage rod are in cross linkage through sliding of a sliding sleeve, and then a plurality of supporting rods are driven to be in linkage; the diameter of a cylinder integrally formed by the multiple supporting rods can be rapidly adjusted, the protection plate is driven to contract, the protection equipment can be suitable for protection operation of cutting heads of different types, and the application range is effectively widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective equipment, and particularly relates to a cutting head protective equipment for coal mining and tunneling. Background Art

[0002] The cutting head of a roadheader is a device used for underground mine exploitation such as coal mines and metal mines. It is installed at the front end of the roadheader. Through the rotation of the cutting disc and the extrusion of the shearer, coal or ore is cut and sent to the conveyor belt. The cutting head mainly consists of components such as a cutting disc, blades, gears, chains, motors, and reducers. Among them, the cutting disc is the core part of the entire device. It consists of multiple blades and can rotate and advance forward. Since the blades are relatively sharp, generally, protective equipment is required to protect the entire cutting head during shutdown to avoid personnel being injured by collision.

[0003] Although there are various current cutting head protective equipments, there are still some problems. For example, most of the current protective equipments isolate the cutting head by erecting a layer of protective plate outside the cutting head to achieve the protective effect. However, since the sizes of different models of cutting heads are different, and the size of the protective plate of the current protective equipment is generally constant and cannot be applied to different models of cutting heads. When facing different models of cutting heads, corresponding models of protective equipment need to be used, and the operation is relatively cumbersome. Content of the Utility Model

[0004] The utility model provides a cutting head protective equipment for coal mining and tunneling, aiming to solve the problem that the applicable range of the current protective equipment is small and it cannot protect different models of cutting heads.

[0005] The utility model is realized as follows. The cutting head protective equipment for coal mining and tunneling includes: a main support rod, a support rod, an adjustment mechanism, a protective plate, and a linkage mechanism;

[0006] The main support rod is connected to the coal mining and tunneling machine. The support rod is arranged around the main support rod through the adjustment mechanism, and multiple support rods are provided and form a circular structure with the main support rod as a whole. The protective plate is arranged between the main support rod, the support rod, and two adjacent support rods. The linkage mechanism is arranged on the main support rod;

[0007] The adjusting mechanism includes a docking sleeve, a sliding sleeve, a first linkage rod, and a second linkage rod. A plurality of docking sleeves and sliding sleeves are provided. The plurality of docking sleeves are respectively fixed to one ends of the main support rod and the support rod, and the plurality of sliding sleeves are respectively slidably sleeved on the main support rod and the support rod. The first linkage rod and the second linkage rod are cross-rotatably connected to each other, and one ends of the first linkage rod and the second linkage rod are respectively rotatably connected to the docking sleeve and the sliding sleeve of the main support rod, and the other ends are respectively rotatably connected to the docking sleeve and the sliding sleeve of the support rod.

[0008] Preferably, the adjusting mechanism further includes a limiting sleeve and a limiting rod. A plurality of limiting sleeves are provided, and the plurality of limiting sleeves are respectively fixed to the ends of the main support rod and the support rod away from the docking sleeve. One end of the limiting rod is rotatably connected to the limiting sleeve, and the limiting rods between adjacent two limiting sleeves are rotatably connected to each other.

[0009] Preferably, the protective plate is provided with a plurality of folds and is provided in several pieces, and the several protective plates together form a cylindrical structure.

[0010] Preferably, the linkage mechanism includes a cylinder, a telescopic rod, and a driven rod. The cylinder is provided at one end of the main support rod. The telescopic rod is slidably connected in the internal cavity of the main support rod, and the telescopic part of the cylinder is coaxially fixed to one end of the telescopic rod. The driven rod is slidably connected in the internal cavity of the telescopic rod and is connected to the sliding sleeve at one end.

[0011] Preferably, a connecting block is fixed to one end of the driven rod close to the sliding sleeve. The connecting block is fixed to the sliding sleeve, and a strip-shaped notch is provided on the side wall of the main support rod. The connecting block is slidably clamped in the strip-shaped notch.

[0012] Preferably, the linkage mechanism further includes a driving rack, a driven rack, and a linkage gear. The driving rack is fixed to the inner wall of the main support rod. The driven rack is fixed to one end of the driven rod. The linkage gear is rotatably connected to the telescopic rod and meshes between the driving rack and the driven rack.

[0013] Preferably, at least two sets of the overall structures formed by the driving rack and the linkage gear are symmetrically arranged.

[0014] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0015] In this solution, by setting the adjustment mechanism and the linkage mechanism, the cutting head of the roadheader is isolated and protected from the outside by the protective plate. At the same time, due to the setting of the adjustment mechanism, the first linkage rod and the second linkage rod cross-link through the sliding of the sliding sleeve, and then drive the linkage of multiple support rods, so as to realize the rapid adjustment of the diameter of the cylinder formed by the multiple support rods as a whole, and drive the protective plate to contract. Thus, the protective equipment can be applied to the protective operations of cutting heads of different models, effectively improving the applicable range. At the same time, due to the setting of the linkage mechanism, the cylinder can drive the driven rod to slide with a multiple distance within its telescopic stroke, and then drive the sliding sleeve to quickly link, which is simple and efficient. Brief Description of the Drawings

[0016] Figure 1 is the schematic diagram of the overall external structure of the present utility model;

[0017] Figure 2 is the schematic diagram of the structure of the adjustment mechanism of the present utility model;

[0018] Figure 3 is the schematic diagram of the driven rod and its connection structure of the present utility model;

[0019] Figure 4 is the schematic diagram of the structure of the linkage mechanism of the present utility model;

[0020] In the figure: 1, main support rod; 2, support rod; 3, adjustment mechanism; 31, docking sleeve; 32, sliding sleeve; 33, first linkage rod; 34, second linkage rod; 35, limit sleeve; 36, limit rod; 4, protective plate; 5, linkage mechanism; 51, cylinder; 52, telescopic rod; 53, driven rod; 54, connecting block; 55, driving rack; 56, driven rack; 57, linkage gear. Detailed Embodiment

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.

[0022] References to "embodiments" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment each time, nor are they independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] An embodiment of the utility model provides a cutting head protection device for coal mining and tunneling, such as Figures 1-4 shown, which includes: a main support rod 1, a support rod 2, an adjustment mechanism 3, a protection plate 4, and a linkage mechanism 5;

[0024] The main support rod 1 is connected to a coal mining and tunneling machine. The support rod 2 is arranged around the main support rod 1 through the adjustment mechanism 3. A plurality of support rods 2 are provided and together with the main support rod 1 form a circular structure. The protection plate 4 is arranged on the main support rod 1, the support rod 2, and between two adjacent support rods 2. The linkage mechanism 5 is arranged on the main support rod 1;

[0025] The adjustment mechanism 3 includes a docking sleeve 31, a sliding sleeve 32, a first linkage rod 33, and a second linkage rod 34. A plurality of docking sleeves 31 and sliding sleeves 32 are provided. A plurality of docking sleeves 31 are respectively fixed to one ends of the main support rod 1 and the support rod 2. A plurality of sliding sleeves 32 are respectively slidably sleeved on the main support rod 1 and the support rod 2. The first linkage rod 33 and the second linkage rod 34 are cross-rotationally connected to each other. One ends of the first linkage rod 33 and the second linkage rod 34 are respectively rotationally connected to the docking sleeve 31 and the sliding sleeve 32 on the main support rod 1, and the other ends are respectively rotationally connected to the docking sleeve 31 and the sliding sleeve 32 on the support rod 2;

[0026] The adjustment mechanism 3 further includes a limit sleeve 35 and a limit rod 36. A plurality of limit sleeves 35 are provided. A plurality of limit sleeves 35 are respectively fixed to the ends of the main support rod 1 and the support rod 2 away from the docking sleeve 31. One end of the limit rod 36 is rotationally connected to the limit sleeve 35, and the limit rods 36 between two adjacent limit sleeves 35 are rotationally connected to each other;

[0027] The protection plate 4 is provided with a plurality of folds and is provided with several pieces. Several protection plates 4 together form a cylindrical structure;

[0028] The linkage mechanism 5 includes a cylinder 51, a telescopic rod 52, and a driven rod 53. The cylinder 51 is arranged at one end of the main support rod 1. The telescopic rod 52 is slidably connected in the internal cavity of the main support rod 1, and the telescopic part of the cylinder 51 is coaxially fixed to one end of the telescopic rod 52. The driven rod 53 is slidably connected in the internal cavity of the telescopic rod 52 and is connected to the sliding sleeve 32 at one end;

[0029] The linkage mechanism 5 further includes a driving rack 55, a driven rack 56 and a linkage gear 57. The driving rack 55 is fixed on the inner wall of the main support rod 1. The driven rack 56 is fixed at one end of the driven rod 53. The linkage gear 57 is rotatably connected to the telescopic rod 52 and meshes between the driving rack 55 and the driven rack 56.

[0030] It should be noted that since the size of the protection plate of the existing protection equipment is generally constant and cannot be applied to cutting heads of different models, when facing cutting heads of different models, corresponding protection equipment needs to be used, and the operation is relatively cumbersome. To solve this problem, an adjustment mechanism 3 and a linkage mechanism 5 are provided in this solution. The cutting head of the roadheader is isolated and protected from the outside by the protection plate 4. At the same time, due to the setting of the adjustment mechanism 3, the first linkage rod 33 and the second linkage rod 34 cross-link through the sliding of the sliding sleeve 32, thereby driving the linkage of multiple support rods 2, and then realizing the rapid adjustment of the diameter of the cylinder formed by the multiple support rods 2 as a whole, and driving the protection plate 4 to contract, so that the protection equipment can be applied to the protection operations of cutting heads of different models, effectively improving the applicable range. At the same time, due to the setting of the linkage mechanism 5, the cylinder 51 can drive the driven rod 53 to slide with a multiple distance within its telescopic stroke, thereby driving the sliding sleeve 32 to quickly link, which is simple and efficient.

[0031] Specifically, in this embodiment, this solution mainly includes a main support rod 1, a support rod 2, an adjustment mechanism 3, a protection plate 4 and a linkage mechanism 5. When in use, first drive the telescopic rod 52 to slide in the main support rod 1 through the expansion and contraction of the telescopic part of the cylinder 51. At this time, the linkage gear 57 meshes and links, and drives the driving rack 55 to mesh and link, thereby driving the driven rod 53 to quickly move in the main support rod 1. The driven rod 53 drives the sliding sleeve 32 to slide. While the sliding sleeve 32 slides, the first linkage rod 33 and the second linkage rod 34 cross-link, and at the same time the limiting rods 36 link with each other, thereby driving the synchronous linkage of multiple support rods 2, and adjusting the diameter of the cylinder formed by the combination of multiple support rods 2, and synchronously adjusting the protection plate 4. After adjusting to an appropriate size, the whole protection equipment can be sleeved outside the cutting head.

[0032] In a further preferred embodiment of the present invention, as Figures 1-4 shown, a connection block 54 is fixed at one end of the driven rod 53 close to the sliding sleeve 32. The connection block 54 is fixed to the sliding sleeve 32, and a strip-shaped notch is provided on the side wall of the main support rod 1. The connection block 54 is slidably clamped in the strip-shaped notch.

[0033] In this embodiment, the connection block 54 is limited by the strip-shaped notch, so that it can drive the sliding sleeve 32 to move synchronously while sliding in a fixed direction.

[0034] In a further preferred embodiment of the present invention, as Figures 1-4As shown, at least two sets of the overall structure formed by the driving rack 55 and the linkage gear 57 are symmetrically arranged.

[0035] In this embodiment, the stability of the driven rod 53 during linkage is improved by the symmetrically arranged driving rack 55 and linkage gear 57.

[0036] It should be noted that, for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be adopted in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0037] In several embodiments provided by this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above-mentioned unit division can have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the shown or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0038] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. Cutting head protection equipment for coal mining and tunneling, characterized in that, Including: A main support rod (1), a support rod (2), an adjusting mechanism (3), a protective plate (4) and a linkage mechanism (5); The main support rod (1) is connected to a coal mining and tunneling machine. The support rod (2) is arranged around the main support rod (1) through the adjusting mechanism (3). A plurality of support rods (2) are provided and form a circular structure together with the main support rod (1). The protective plate (4) is arranged between the main support rod (1), the support rod (2) and two adjacent support rods (2). The linkage mechanism (5) is arranged on the main support rod (1); The adjusting mechanism (3) includes a docking sleeve (31), a sliding sleeve (32), a first linkage rod (33) and a second linkage rod (34). A plurality of docking sleeves (31) and sliding sleeves (32) are provided. A plurality of the docking sleeves (31) are respectively fixed at one ends of the main support rod (1) and the support rod (2). A plurality of the sliding sleeves (32) are respectively slidably sleeved on the main support rod (1) and the support rod (2). The first linkage rod (33) and the second linkage rod (34) are cross-rotationally connected to each other. One ends of the first linkage rod (33) and the second linkage rod (34) are respectively rotationally connected to the docking sleeve (31) and the sliding sleeve (32) of the main support rod (1), and the other ends are respectively rotationally connected to the docking sleeve (31) and the sliding sleeve (32) of the support rod (2).

2. The cutting head protection device for coal mining and tunneling according to claim 1, characterized in that, The adjusting mechanism (3) further includes a limit sleeve (35) and a limit rod (36). A plurality of limit sleeves (35) are provided. A plurality of the limit sleeves (35) are respectively fixed at one ends of the main support rod (1) and the support rod (2) away from the docking sleeve (31). One end of the limit rod (36) is rotationally connected to the limit sleeve (35), and the limit rods (36) between two adjacent limit sleeves (35) are rotationally connected to each other.

3. The cutting head protection device for coal mining and tunneling according to claim 1, characterized in that The protective plate (4) is provided with a plurality of wrinkles and is provided with several pieces. Several protective plates (4) together form a cylindrical structure.

4. The cutting head protection device for coal mining and tunneling according to claim 1, characterized in that, The linkage mechanism (5) includes a cylinder (51), a telescopic rod (52) and a driven rod (53). The cylinder (51) is arranged at one end of the main support rod (1). The telescopic rod (52) is slidably connected in the inner cavity of the main support rod (1). The telescopic part of the cylinder (51) is coaxially fixed at one end of the telescopic rod (52). The driven rod (53) is slidably connected in the inner cavity of the telescopic rod (52) and is connected to the sliding sleeve (32) at one end.

5. The cutting head protection device for coal mining and tunneling according to claim 4, characterized in that, A connecting block (54) is fixed at one end of the driven rod (53) close to the sliding sleeve (32). The connecting block (54) is fixed to the sliding sleeve (32), and a strip-shaped notch is arranged on the side wall of the main support rod (1). The connecting block (54) is slidably clamped in the strip-shaped notch.

6. The cutting head protection device for coal mining and tunneling according to claim 4, characterized in that, The linkage mechanism (5) further includes a driving rack (55), a driven rack (56) and a linkage gear (57). The driving rack (55) is fixed on the inner wall of the main support rod (1). The driven rack (56) is fixed at one end of the driven rod (53). The linkage gear (57) is rotatably connected to the telescopic rod (52) and meshes between the driving rack (55) and the driven rack (56).

7. The cutting head protection device for coal mining and tunneling according to claim 6, characterized in that, The overall structure formed by the driving rack (55) and the linkage gear (57) is symmetrically arranged in at least two groups.

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