Scraper conveyor with adjustable machine body frame for coal mine

Abstract

The invention provides a scraper conveyor with an adjustable machine body frame for a coal mine. The scraper conveyor comprises a machine head, a linear machine body frame connected with the machine head and a chain which is driven by a driving mechanism of the machine head and arranged on the linear machine body frame, and a plurality of chain plates are distributed on the chain at intervals. The adjustable machine body frame is connected with the linear machine body frame through a chain type hinge; the adjustable machine body frame comprises a plurality of bottom plates which are horizontally arranged, the bottom plates are formed by hinging long plates with trapezoidal sections and long plates with triangular sections, and connecting rods which are arranged diagonally are hinged to the bottom surfaces of every two adjacent bottom plates; the adjustable machine body frame further comprises split type side plates on the two sides. By arranging the adjustable machine body frame hinged to the linear machine body frame in a chain mode, the limitation that an existing scraper conveyor can only turn at a right angle and cannot adjust the angle at will is solved, and the direction of the machine body can be flexibly adjusted at multiple angles according to the actual trend and operation requirements of a coal mine roadway; and the adaptability and universality of the conveyor in a complex coal mine environment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scraper conveyors, in particular to an adjustable body frame scraper conveyor for coal mines. BACKGROUND

[0002] In modern coal mining, the scraper conveyor needs to adapt to the complex and variable underground roadway environment, including straight sections, turning sections and undulating sections and other working conditions. The turning flexibility of the body frame is a key technical indicator that determines the adaptability of the equipment.

[0003] The body frame of the traditional scraper conveyor adopts a rigid integrated structure, and its turning function relies on a pre-set right-angle turning transition section. The right-angle turning is derived from the relatively regular characteristics of the early mine roadway layout, but with the increase in coal mining depth and the development of intelligent mining technology, the underground roadway presents new features such as variable curvature and limited space. For example, in thin coal seam mining, the roadway width is only 3-4 meters, and the inclination angle of the steeply inclined seam roadway can be more than 35°, and the traditional fixed-angle turning structure has been difficult to match the spatial requirements of complex roadways.

[0004] Chinese patent CN116513715A discloses a scraper conveyor space double-chain right-angle turning assembly, which is provided with a turning disc groove at the turning position and adopts a multi-section type scraper that is hingedly connected, which can fit the transition slope and the slope at the turning position to balance the path difference between the inner and outer chains at the turning position. However, this device can only realize right-angle turning and cannot adjust the turning angle. SUMMARY

[0005] The present application provides an adjustable body frame scraper conveyor for coal mines to solve the problem that the existing scraper conveyor can only turn right angles and cannot adjust the angle arbitrarily.

[0006] To solve the above problems, the present application provides an adjustable body frame scraper conveyor for coal mines, which includes a machine head, a straight body frame connected to the machine head, a chain driven by a drive mechanism of the machine head and arranged on the straight body frame, and a plurality of chain plates distributed at intervals on the chain; it also includes an adjustable body frame connected to the straight body frame through chain hinging; the adjustable body frame includes a plurality of horizontally arranged bottom plates, which are hingedly connected by trapezoidal section long plates and triangular section long plates, and the bottom surfaces of adjacent two bottom plates are hingedly connected with diagonal arranged connecting rods; the adjustable body frame also includes split side plates on both sides. Through the above scheme, by setting the adjustable body frame connected to the straight body frame through chain hinging, the limitation that the existing scraper conveyor can only turn right angles and cannot adjust the angle arbitrarily is solved, and the body direction can be flexibly adjusted at multiple angles according to the actual trend of the coal mine roadway and the operation requirements, improving the adaptability and versatility of the conveyor in complex coal mine environment, so that the equipment can better meet the transportation requirements of different mine layouts.

[0007] Further, in order to realize multi-angle turning, the split side plate includes upper side plates arranged on both sides of the bottom plate, the inner wall of the upper side plate is provided with a first chain plate slide and a bottom plate slide, the bottom surface of the upper side plate is provided with a bottom surface slide, and the top of the upper side plate is provided with a stop edge; the bottom surface slide is matched with a middle side plate which is composed of a plurality of I-shaped plates connected by hinges, and the upper and lower surfaces of the I-shaped plate are both provided with guide blocks; the lower side plate is slidably connected with the middle side plate, the top of the lower side plate is provided with a top surface slide, and the inner wall is provided with a second chain plate slide.

[0008] Further, in order to avoid transverse gaps between adjacent bottom plates during turning, the cross section of the trapezoidal long plate is a right trapezoid, the included angle between the trapezoidal waist surface of the trapezoidal long plate and the horizontal plane is 3°-5°, the width of the second contact surface of the triangular long plate is half of the width of the first contact surface of the trapezoidal long plate, and the included angle between the bottom surface of the triangular long plate and the horizontal plane is 3°-5°.

[0009] Further, in order to reduce the horizontal gap between the upper and lower bottom surfaces of the adjacent two bottom plates when the adjustable fuselage frame is adjusted, long grooves are arranged on both sides of the first contact surface, universal ball heads are correspondingly arranged on both sides of the second contact surface, the ball head seat of the universal ball head reciprocally slides in the long groove, and the steering ball of the universal ball head rotates in the ball head seat.

[0010] Preferably, in order to adapt to the shape of the ball head seat and prevent horizontal misplacement, the long groove is a T-shaped groove.

[0011] Further, in order to realize the adjustable angle during installation of the existing scraper conveyor, the radius of the upper side plate and the lower side plate can be selected as 45°, 60°, 90° or 120°.

[0012] Further, in order to realize adjustment at any angle, the adjustable fuselage frame further includes integral side plates on both sides, which are composed of a plurality of outer I-shaped plates connected by hinges, and the bottom plate is welded on the upper inner wall of the outer I-shaped plate.

[0013] Preferably, the upper surfaces of the trapezoidal long plate and the triangular long plate are both provided with stop plates, and one end of the stop plate is hingedly connected to the highest point of the bottom plate.

[0014] Preferably, the lower inner wall of the outer I-shaped plate is provided with a roller.

[0015] Preferably, the adjustable angle of the adjustable fuselage frame is 45°-120° at any angle.

[0016] The technical effect of the present application is that: This application provides an adjustable frame scraper conveyor for coal mines. By setting an adjustable frame that is chain-hinged to a straight frame, it solves the limitation of existing scraper conveyors that can only turn at right angles and cannot adjust the angle arbitrarily. It can flexibly adjust the direction of the conveyor at multiple angles according to the actual direction of the coal mine roadway and the operational needs, thereby improving the adaptability and versatility of the conveyor in complex coal mine environments and enabling the equipment to better meet the transportation requirements of different mine layouts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an adjustable frame scraper conveyor for coal mines provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the adjustable frame structure of a scraper conveyor for coal mines, provided by the present invention.

[0019] Figure 3 This is a schematic diagram of one side of the adjustable frame structure of a scraper conveyor for coal mines, provided by the present invention.

[0020] Figure 4 This is a side-view diagram of the adjustable frame structure of a scraper conveyor for coal mines, provided by the present invention.

[0021] Figure 5 This is a schematic diagram of the bottom plate structure of an adjustable frame scraper conveyor for coal mines provided by the present invention.

[0022] Figure 6 This is a schematic diagram of the universal ball joint structure of an adjustable frame scraper conveyor for coal mines provided by the present invention.

[0023] Figure 7 This is a schematic diagram of the middle side plate structure of an adjustable frame scraper conveyor for coal mines provided by the present invention.

[0024] Figure 8 This invention provides Figure 4 A magnified view of the details at point A in the middle.

[0025] Figure 9 This is a schematic diagram of the adjustable frame structure of a scraper conveyor for coal mines according to Embodiment 2 of the present invention.

[0026] Figure 10 This invention provides Figure 9 A magnified view of the details at point B in the middle.

[0027] Explanation of reference numerals in the attached figures: 1, head; 2, straight body frame; 3, adjustable body frame; 4, chain; 5, chain plate; 310, bottom plate; 311, trapezoidal long plate; 311a, trapezoidal waist surface; 311b, first contact surface; 312, triangular long plate; 312a, triangular base; 312b, second contact surface; 313, long groove; 314, universal ball head; 3141, ball head seat; 3142, steering ball; 320, upper side plate; 321, flange; 322, first chain plate slide; 323, bottom plate slide; 324, bottom surface slide; 330, middle side plate; 331, I-shaped plate; 332, hinge; 340, lower side plate; 341, top surface slide; 342, second chain plate slide; 350, connecting rod; 360, outer I-shaped plate; 361, roller. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings Figures 1-3 The embodiments of the technical solutions of the present application will be described in detail. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, therefore only as an example, and cannot limit the protection scope of the present application.

[0029] Embodiment one Referring to Figure 1 and Figure 2 , in order to solve the problem that the existing scraper conveyor can only make right-angle turns and cannot be adjusted at multiple angles, the present application provides an adjustable body frame coal mine scraper conveyor, which comprises a head 1, a straight body frame 2 connected with the head, a chain 4 driven by a driving mechanism of the head 1 and arranged on the straight body frame 2, and a plurality of chain plates 5 distributed at intervals on the chain 4; It also comprises an adjustable body frame 3 connected with the straight body frame 2 through chain articulation.

[0030] The adjustable body frame 3 comprises a plurality of horizontally arranged bottom plates 310, which are hingedly connected by trapezoidal long plates 311 and triangular long plates 312, and the bottom surfaces of adjacent two bottom plates 310 are hingedly connected with connecting rods 350 arranged at diagonals; The adjustable fuselage frame 3 further comprises two split side plates, each comprising an upper side plate 320 arranged on the two side edges of the bottom plate 310, the inner wall of the upper side plate 320 being provided with a first chain plate slide 322 and a bottom plate slide 323, the bottom surface of the upper side plate 320 being provided with a bottom surface slide 324, and the top of the upper side plate 320 being provided with a stop edge 321; a middle side plate 330 slidingly connected to the bottom surface slide 324, the middle side plate 330 being composed of a plurality of I-shaped plates 331 connected by hinges 312, the upper and lower surfaces of each I-shaped plate 331 being provided with a guide block; and a lower side plate 340 slidingly connected to the middle side plate 330, the top of the lower side plate 340 being provided with a top surface slide 341, and the inner wall of the lower side plate 340 being provided with a second chain plate slide 342.

[0031] When the angle needs to be adjusted, the split side plates of the adjustable fuselage frame 3 are first installed, the upper side plates 320 and the lower side plates 340 of a certain angle are selected, a proper number of I-shaped plates 331 are selected to form the middle side plate 330, the middle side plate 330 is slid into the top surface slide 341 of the lower side plate 340, and the upper side plate 320 is installed on the middle side plate 330; then the bottom plate 310 is installed again, the connecting rods 350 are used to assemble the bottom plates 310 into a whole, and the whole bottom plate 310 is slid into the middle of the two upper side plates 320 through the bottom plate slide 323; since the upper side plates 320 have a curvature and the bottom plate 310 is a long plate with a certain thickness, when the bottom plate 310 is pushed into the bottom plate slide 323, the bottom plate 310 is distributed in a fan shape around the center point of the curvature under the pushing of the connecting rods 350, and the triangular cross-section long plate 312 is overlapped on the adjacent trapezoidal cross-section long plate 311; finally, the I-shaped plates at both ends are connected to the straight fuselage frame 2 through the hinges 312, and the trapezoidal cross-section long plate 311 of the top end bottom plate 310 is flush with the straight fuselage frame 3, and the triangular cross-section long plate 312 of the end bottom plate 310 is overlapped on the straight fuselage frame 3.

[0032] Through the above scheme, the adjustable fuselage frame 3 connected to the straight fuselage frame 2 through chain hinging is provided, which solves the limitation that the existing scraper conveyor can only make right-angle turns and cannot adjust the angle arbitrarily, and can realize flexible adjustment of the fuselage direction at multiple angles according to the actual direction of the coal mine roadway and the operation requirements, thereby improving the adaptability and versatility of the conveyor in complex coal mine environments and enabling the equipment to better meet the transportation requirements of different mine layouts.

[0033] Further, the cross section of the trapezoidal cross-section long plate 311 is a right trapezoid, the included angle between the trapezoidal waist surface 311a and the horizontal plane is 3°-5°, the width of the second contact surface 312b of the triangular cross-section long plate 312 is half of the width of the first contact surface 311b, and the included angle between the bottom surface 312a of the triangular cross-section long plate 312 and the horizontal plane is 3°-5°.

[0034] Further, in order to reduce the horizontal gap between the upper and lower surfaces of the two adjacent bottom plates 310 when the adjustable fuselage frame 3 adjusts the angle, long grooves 313 are arranged on both sides of the first contact surface 311b, universal ball heads 314 are correspondingly arranged on both sides of the second contact surface 312b, the ball head seat 3141 of the universal ball head 314 reciprocally slides in the long groove 313, and the steering ball 3142 of the universal ball head 314 rotates in the ball head seat 3141. The bottom surface 312a away from the long side of the trapezoidal long plate 311 is completely overlapped on the trapezoidal waist surface 311a of the adjacent bottom plate 310, so as to better eliminate the horizontal gap and make the chain plate 5 better scrape the coal residue.

[0035] Preferably, the long groove 313 is a T-shaped groove to adapt to the shape of the ball head seat 3141, and the T-shaped groove is more likely to clamp the ball head seat 3141 and prevent horizontal misplacement.

[0036] Further, in order to realize the fixed adjustment angle when the existing scraper conveyor is installed, the curvature of the upper side plate 320 and the lower side plate 340 can be selected as 45°, 60°, 90°, and 120°.

[0037] Embodiment Two Reference Figure 9 、 Figure 10 According to the above embodiment one, the application provides another embodiment of the adjustable fuselage frame coal mine scraper conveyor. In order to realize the adjustment of any angle, the adjustable fuselage frame 3 further comprises two integrated side plates, the integrated side plates comprise a plurality of outer I-shaped plates 360 connected by hinges 332, the bottom plates 310 are welded on the inner walls of the two outer I-shaped plates 360, the upper surfaces of the trapezoidal long plates 311 and the triangular long plates 312 are provided with baffles 370, one end of the baffle 370 is hinged to the highest point of the bottom plate 310 by a hinge 371, and the rollers 361 are installed on the lower part of the inner walls of the two outer I-shaped plates 360.

[0038] The adjustable fuselage frame 3 provided by the embodiment can adjust the angle to any angle of 45°-120°.

[0039] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. An adjustable frame scraper conveyor for coal mines, comprising a head (1), a straight frame (2) connected to the head (1), a chain (4) driven by a drive mechanism of the head (1) and disposed on the straight frame (2), wherein a plurality of chain plates (5) are spaced apart on the chain (4). Its features are, It also includes an adjustable fuselage frame (3) that is connected to the linear fuselage frame (2) via a chain hinge. The adjustable frame (3) includes several horizontally arranged base plates (310). The base plates (310) are hinged together by trapezoidal cross-section long plates (311) and triangular cross-section long plates (312). The bottom surfaces of two adjacent base plates (310) are hinged together with diagonally arranged connecting rods (350). The adjustable fuselage frame (3) also includes split side panels on both sides.

2. The adjustable frame scraper conveyor for coal mines according to claim 1, characterized in that, The split side plate includes an upper side plate (320) disposed on both sides of the bottom plate (310). The inner wall of the upper side plate (320) is provided with a first chain plate slide (322) and a bottom plate slide (323). The bottom surface of the upper side plate (320) is provided with a bottom surface slide (324). The top of the upper side plate (320) is provided with a retaining edge (321). The bottom slide rail (324) is slidably fitted with a middle side plate (330), which is composed of several I-shaped plates (331) connected by hinges (332). Guide blocks are provided on both the upper and lower surfaces of the I-shaped plates (331). The lower side plate (340) is slidably connected to the middle side plate (330). The top of the lower side plate (340) is provided with a top surface slide (341), and the inner wall is provided with a second chain plate slide (342).

3. The adjustable frame scraper conveyor for coal mines according to claim 1, characterized in that, The trapezoidal cross-section plate (311) has a right trapezoidal cross-section. The trapezoidal waist surface (311a) of the trapezoidal cross-section plate (311) has an angle of 3°~5° with the horizontal plane. The width of the second contact surface (312b) of the triangular cross-section plate (312) is half the width of the first contact surface (311b) of the trapezoidal cross-section plate (311). The angle between the bottom surface (312a) of the triangular cross-section plate (312) and the horizontal plane is 3°~5°.

4. The adjustable frame scraper conveyor for coal mines according to claim 3, characterized in that, The first contact surface (311b) has long grooves (313) on both sides, and the second contact surface (312b) has universal ball joints (314) installed on both sides respectively. The ball joint seat (3141) of the universal ball joint (314) slides back and forth in the long groove (313), and the steering ball (3142) of the universal ball joint (314) rotates in the ball joint seat (3141).

5. The adjustable frame scraper conveyor for coal mines according to claim 4, characterized in that, The long groove (313) is a T-shaped groove.

6. The adjustable frame scraper conveyor for coal mines according to claim 2, characterized in that, The curvature of the upper side plate (320) and the lower side plate (340) can be selected as 45°, 60°, 90°, or 120°.

7. The adjustable frame scraper conveyor for coal mines according to claim 1, characterized in that, The adjustable frame (3) also includes two integrated side panels, which consist of several outer I-beam plates (360) connected by hinges (332), and the bottom plate (310) is welded to the upper part of the inner wall of the outer I-beam plates (360) on both sides.

8. The adjustable frame scraper conveyor for coal mines according to claim 7, characterized in that, Both the trapezoidal cross-section plate (311) and the triangular cross-section plate (312) have baffles (370) on their upper surfaces. One end of each baffle (370) is hinged to the highest point of the base plate (310) by a hinge (371).

9. The adjustable frame scraper conveyor for coal mines according to claim 8, characterized in that, Rollers (361) are installed on the lower part of the inner wall of the outer I-shaped plate (360) on both sides.

10. The adjustable frame scraper conveyor for coal mines according to any one of claims 7-8, characterized in that, The adjustable body frame (3) can be adjusted to any angle from 45° to 120°.

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