Height-adjustable scraper machine cushion frame

Abstract

The utility model relates to a height-adjustable scraper machine cushion frame which is characterized in that an upper frame plate is fixed with a scraper machine head / tail frame, a first upper connecting piece is arranged on the rear side of the left side of the upper frame plate, and a second upper connecting piece is arranged on the front side of the right side of the upper frame plate; a first lower connecting piece is arranged on the left front side of the lower frame plate, and a second lower connecting piece is arranged on the right rear side. The top end of the first oil cylinder is hinged to the first upper connecting piece, and the bottom end is hinged to the first lower connecting piece. The top end of the second oil cylinder is hinged to the second upper connecting piece, and the bottom end is hinged to the second lower connecting piece. Four-bar mechanisms are arranged on the inner sides of the first oil cylinder and the second oil cylinder respectively. The oil cylinder stretches out and draws back to provide lifting and descending power for the frame body, and the four-connecting-rod structure provides stress supporting and controls the displacement stability of the frame body. While the machine head / tail of the scraper conveyor is effectively heightened and supported, the height of a certain stroke can be adjusted, and the flexibility of conveying equipment in underground use is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mining equipment, concretely relates to a scraper machine pad frame with adjustable height. BACKGROUND

[0002] The height of the traditional scraper conveyor pad frame cannot be adjusted after being determined, and in the actual use process of different scenes in the mine, there are problems such as poor ability to deal with complex terrain, insufficient use flexibility and the like.

[0003] In the process of excavating a roadway along the roof of a thin coal seam, the pad frame with fixed height cannot meet the demand of adjusting the head height of the scraper conveyor in real time to ensure stable unloading and safe production by following the terrain change, and also cannot meet the demand of fine adjustment of the head / tail frame height of the scraper conveyor to increase the amount of lying bottom of the coal mining machine. SUMMARY

[0004] The utility model discloses a scraper machine pad frame with adjustable height to avoid the defects of the prior art.

[0005] To achieve the above object, the utility model takes the technical scheme that a scraper machine pad frame with adjustable height, characterized by comprising an upper frame plate, a lower frame plate, a first oil cylinder and a second oil cylinder, the upper frame plate is fixed with the head / tail frame of the scraper conveyor, a first upper connecting piece is arranged on the left rear side of the upper frame plate, and a second upper connecting piece is arranged on the right front side of the upper frame plate, a first lower connecting piece is arranged on the left front side of the lower frame plate, and a second lower connecting piece is arranged on the right rear side of the lower frame plate, the top end of the first oil cylinder is hinged with the first upper connecting piece, and the bottom end is hinged with the first lower connecting piece, the top end of the second oil cylinder is hinged with the second upper connecting piece, and the bottom end is hinged with the second lower connecting piece.

[0006] The inside of the first oil cylinder and the second oil cylinder is respectively provided with a four-bar linkage mechanism, and the upper ends of the two four-bar linkage mechanisms are respectively hinged with the upper frame plate through a connecting part, and the lower ends are respectively hinged with the lower frame plate.

[0007] The inside of the first oil cylinder and the second oil cylinder is respectively provided with a four-bar linkage mechanism, and the upper ends of the two four-bar linkage mechanisms are respectively hinged with the upper frame plate through a connecting part, and the lower ends are respectively hinged with the lower frame plate.

[0008] The four-bar linkage mechanism is composed of a longest rod, a shortest rod and an intermediate rod, the first end of the longest rod is hinged with the upper frame plate through a connecting part, the unthreaded end of the longest rod is hinged with one end of the shortest rod, the rear section of the longest rod is hinged with one end of the intermediate rod, the other end of the shortest rod is hinged with the lower frame plate, the hinged point is D, the other end of the intermediate rod is also hinged with the lower frame plate, and the hinged point is E, and the sum of the lengths of the longest rod and the shortest rod is greater than or equal to the sum of the length of the intermediate rod and the distance between the hinged point D and the hinged point E.

[0009] The outside between the two connecting parts is provided with a reinforcing plate.

[0010] A synchronous pull plate is fixed between the two four-bar linkage mechanisms, and the synchronous pull plate is located on the upper surface of the four-bar linkage mechanism.

[0011] The lower shelf plate is provided with push-ear on both sides for connecting with the mine hydraulic support.

[0012] The back of the synchronous pull plate is provided with a reinforcing rib.

[0013] The beneficial effect of the utility model is: simple and practical structure, the oil cylinder telescoping provides the power for lifting and lowering the frame body, the four-bar linkage structure provides the stress support and controls the displacement stability of the frame body. While providing effective cushioning support for the head / tail of the scraper conveyor, the height adjustment of a certain stroke is also realized, the flexibility of the conveying equipment in underground use is improved, the adaptability to the roadway floor is enhanced, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is the left view of the utility model;

[0016] Figure 3 It is the front view of the utility model in the contraction state;

[0017] Figure 4 It is the left view of the utility model in the contraction state;

[0018] Figure 5 It is the schematic diagram of the four-bar linkage mechanism of the utility model.

[0019] In the drawing: 1-upper shelf plate, 2-lower shelf plate, 3-first oil cylinder, 4-second oil cylinder, 5-four-bar linkage mechanism, 6-connecting part, 7-synchronous pull plate, 8-fixed plate, 9-push-ear;

[0020] A1-one upper connecting piece, A2-two upper connecting pieces, B1-one lower connecting piece, B2-two lower connecting pieces; L1-longest rod, L2-shortest rod, L3-intermediate rod, L4-distance between hinged point D and hinged point E. DETAILED DESCRIPTION

[0021] See Figures 1-2 A kind of height-adjustable scraper machine pad frame, it is characterized in that: including upper shelf plate 1, lower shelf plate 2, first oil cylinder 3 and second oil cylinder 4;The upper shelf plate 1 is fixed with the head / tail frame of scraper machine;The left rear side of the upper shelf plate 1 is equipped with one upper connecting piece A1, and the right front side is equipped with two upper connecting pieces A2;The left front side of the lower shelf plate 2 is equipped with one lower connecting piece B1, and the right rear side is equipped with two lower connecting pieces B2;

[0022] The top end of the first oil cylinder 3 is hinged to a first upper connecting piece A1, and the bottom end is hinged to a first lower connecting piece B1; the top end of the second oil cylinder 4 is hinged to a second upper connecting piece A2, and the bottom end is hinged to a second lower connecting piece B2; the first oil cylinder 3 and the second oil cylinder 4 work synchronously.

[0023] The inner side of the first oil cylinder 3 and the second oil cylinder 4 is respectively provided with a four-bar linkage mechanism 5, and the upper end of the two four-bar linkage mechanisms 5 is respectively hinged to the upper rack plate 1 through a connecting part 6, and the lower end is respectively hinged to the lower rack plate 2.

[0024] See Figure 5 The four-bar linkage mechanism 5 is composed of a longest rod L1, a shortest rod L2 and an intermediate rod L3; the first end of the longest rod L1 is hinged to the upper rack plate 1 through the connecting part 6, the unending end of the longest rod L1 is hinged to one end of the shortest rod L2, the rear section of the longest rod L1 is hinged to one end of the intermediate rod L3, the other end of the shortest rod L2 is hinged to the lower rack plate 2, and the hinged point is D; the other end of the intermediate rod L3 is also hinged to the lower rack plate 2, and the hinged point is E; the sum of the lengths of the longest rod L1 and the shortest rod L2 is greater than or equal to the sum of the length of the intermediate rod L3 and the distance L4 between the hinged point D and the hinged point E.

[0025] The outer side between the two connecting parts 6 is provided with a reinforcing plate 8.

[0026] The two four-bar linkage mechanisms 5 are fixed with a synchronous pull plate 7 between them, and the synchronous pull plate 7 is located on the upper surface of the four-bar linkage mechanism 5.

[0027] The lower rack plate 2 is provided with a push-ear 9 on both sides for connecting with the mine hydraulic support.

[0028] The back of the synchronous pull plate 7 is provided with a reinforcing rib.

[0029] When working, the head frame / tail frame of the scraper conveyor is fixedly connected with the upper plate 1 of the pad frame, and is connected with the mine hydraulic support through the push-ear 9, so as to realize the synchronous pushing of the mine hydraulic support and the scraper conveyor.

Claims

1. An adjustable height flightbar support frame, characterized by: Including the upper shelf plate (1), the lower shelf plate (2), the first oil cylinder (3) and the second oil cylinder (4);The upper shelf plate (1) is fixed with the blade machine head / tail frame;The upper shelf plate (1) left rear side is equipped with a upper connecting piece (A1), and the right side is equipped with a upper connecting piece (A2);The lower shelf plate (2) left side is equipped with a lower connecting piece (B1), and the right side is equipped with a lower connecting piece (B2); The top end of the first oil cylinder (3) is hinged with a upper connecting piece (A1), and the bottom end is hinged with a lower connecting piece (B1);The top end of the second oil cylinder (4) is hinged with a upper connecting piece (A2), and the bottom end is hinged with a lower connecting piece (B2); The inner side of the first oil cylinder (3) and the second oil cylinder (4) is respectively equipped with four connecting rod mechanisms (5), and the upper end of two four connecting rod mechanisms (5) is respectively hinged with the upper shelf plate (1) through a connecting part (6), and the lower end is respectively hinged with the lower shelf plate (2).

2. An adjustable height flighted frame as in claim 1, wherein: The four connecting rod mechanisms (5) are composed of the longest rod (L1), the shortest rod (L2) and the intermediate rod (L3);The first end of the longest rod (L1) is hinged with the upper shelf plate (1) through the connecting part (6), the end of the longest rod (L1) is hinged with one end of the shortest rod (L2), the rear section of the longest rod (L1) is hinged with one end of the intermediate rod (L3), the other end of the shortest rod (L2) is hinged with the lower shelf plate (2), and the hinged point is D, the other end of the intermediate rod (L3) is also hinged with the lower shelf plate (2), and the hinged point is E;The sum of the length of the longest rod (L1) and the shortest rod (L2) is greater than or equal to the sum of the length of the intermediate rod (L3) and the distance (L4) between the hinged point D and the hinged point E.

3. A height adjustable flightbar support according to claim 1 or 2 wherein: The outer side between the two connecting parts (6) is provided with a reinforcing plate (8).

4. A height adjustable flightbar shoe according to claim 1 wherein: The synchronous pull plate (7) is fixed between the two four connecting rod mechanisms (5), and the synchronous pull plate (7) is located on the upper surface of the four connecting rod mechanism (5).

5. An adjustable height flighted frame as in claim 1, wherein: The lower shelf plate (2) is provided with a push ear (9) for connecting with the mine hydraulic support on the front and rear sides.

6. A height adjustable flightbar shoe according to claim 4 wherein: The back of the synchronous pull plate (7) is provided with a reinforcing rib.

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