Hydraulic support test bed

Abstract

The utility model relates to a hydraulic support test bed, which relates to the hydraulic support test field and comprises a support frame and a load sensor, the support frame is a rectangular frame formed by four columns and crossbeams connected with the tops of the columns, and two ends of the crossbeams on two sides vertically fix telescopic oil cylinders downwards. The extending end of the telescopic oil cylinder is connected with a bearing plate through a turn buckle, and a load sensor is fixed to the center of the bottom of the bearing plate. An inclined supporting rod is fixed to the front side of the supporting frame, the bottom of the inclined supporting rod is connected with two adjacent stand columns through a fixing base, the fixing base is fixed to the concrete ground, and the other stand columns are fixed to the concrete wall face. Protective curtains are arranged on the two sides of the rectangular frame, the upper ends of the protective curtains are fixed to a curtain rolling shaft, the curtain rolling shaft is connected with a curtain rolling motor, and the curtain rolling motor is fixed to the concrete wall face.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic support testing, in particular to a hydraulic support test bench. Background Art

[0002] Hydraulic supports, the primary support equipment in comprehensive mechanized coal mining, consist of metal components and a hydraulic system. They utilize high-pressure fluid to perform cyclical actions, including support, roof cutting, support pulling, and sliding, thereby ensuring safe production in fully mechanized coal mining faces. During the hydraulic support production process, spot checks are conducted on the support's load-bearing capacity. Traditional test benches present significant risks. If a hydraulic support fails testing and collapses during testing, it could pose a serious threat to workers' lives.

[0003] Based on this, the utility model designs a hydraulic support test bench with protection to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic support test bench to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The hydraulic support test bench includes a support frame and a load sensor. The support frame is a rectangular frame consisting of four columns and a beam connecting the tops of the columns. The telescopic cylinders are fixed vertically downward at both ends of the beams on both sides. The protruding ends of the telescopic cylinders are connected to the pressure plate through basket bolts. The load sensor is fixed in the center of the bottom of the pressure plate. The front side of the support frame is fixed with an oblique support rod. The bottom of the oblique support rod is connected to two adjacent columns through a fixed base. The fixed base is fixed on the concrete floor, and the remaining columns are fixed on the concrete wall. Protective curtains are provided on both sides of the rectangular frame. The upper ends of the protective curtains are fixed on the rolling curtain shaft. The rolling curtain shaft is connected to the rolling curtain motor, and the rolling curtain motor is fixed on the concrete wall.

[0007] A connecting block is fixed at the bottom of the protective curtain, and a positioning hole is provided in the center of the connecting block.

[0008] A groove is provided on the concrete floor, a pneumatic telescopic rod is provided in the groove, and the pneumatic telescopic rod is coaxial with the positioning hole.

[0009] A connection hole is provided on the edge of the pressure bearing plate.

[0010] The support angle steel is fixed at the connection of the support frame.

[0011] The fixing bolt is an M12 expansion bolt, and the basket bolt 12 is an M12 basket bolt.

[0012] The utility model has the following beneficial effects:

[0013] 1. The protective curtain has a certain protective effect on the operator;

[0014] 2. The pressure plate has a balancing effect; the pressure plate is hung on the telescopic cylinder through basket bolts to prevent it from falling and injuring people. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a side view of the utility model when in use;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0019] Figure 4 for Figure 1 Enlarged view of the structure at point B in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Concrete floor; 2. Concrete wall; 3. Upright column; 4. Diagonal support rod; 5. Fixed base; 6. Rolling shutter motor; 7. Rolling shutter shaft; 8. Fixing bolt; 9. Pressure plate; 10. Connection hole; 11. Crossbeam; 12. Turnbuckle bolt; 13. Telescopic cylinder; 14. Protective curtain; 15. Groove; 16. Pneumatic telescopic rod; 17. Support angle steel; 18. Load sensor; 19. Hydraulic support; 20. Connection block; 21. Positioning hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, and therefore cannot be understood as limiting the present invention.

[0023] The accompanying drawings are specific embodiments of the present invention, as shown in FIG. Figure 1-Figure 4As shown, the utility model is a hydraulic support test bench, including a support frame and a load sensor 18. The support frame is a rectangular frame composed of four columns 3 and a crossbeam 11 connecting the tops of the columns 3. Support angle steels 17 are fixed at the connection points of the support frame to increase the support force of the support frame. The ends of the crossbeams 11 on both sides are fixed vertically downward to the telescopic cylinder 13. The protruding end of the telescopic cylinder 13 is connected to the pressure plate 9 through a basket bolt 12. The edge of the pressure plate 9 is provided with a connection hole 10 for connecting the lifting ring of the basket bolt 12. The basket bolt 12 is an M12 basket bolt. Therefore, when the hydraulic support 19 collapses, the telescopic cylinder 13 can suspend the pressure plate 9 to prevent the pressure plate 9 and the pressure plate placed on the pressure plate 9 from falling. A load sensor 18 is fixed to the center of the bottom of the pressure plate 9; the front side of the support frame is fixed to the diagonal support rod 4, the bottom of the diagonal support rod 4 is connected to two adjacent columns 3 through a fixed base 5, the fixed base 5 is fixed to the concrete floor 1, and the remaining columns 3 are fixed to the concrete wall 2 by fixing bolts 8, which are M12 expansion bolts. Protective curtains 14 are provided on both sides of the rectangular frame, the upper end of the protective curtain 14 is fixed to the roller shutter shaft 7, the roller shutter shaft 7 is connected to the roller shutter motor 6, and the roller shutter motor 6 is fixed to the concrete wall 2. The bottom of the protective curtain 14 is fixed to a connecting block 20, and a positioning hole 21 is provided in the center of the connecting block 20. A groove 15 is provided on the concrete floor 1, and a pneumatic telescopic rod 16 is provided in the groove 15. The pneumatic telescopic rod 16 is coaxial with the positioning hole 21. When the pneumatic telescopic rod 16 is extended, it can pass through the positioning hole 21 to perform a secondary locking on the protective curtain 14.

[0024] During use, the hydraulic support 19 is moved to the center of the support frame. After the hydraulic support 19 is placed, the telescopic cylinder 13 is extended until the load sensor 18 is stably placed on the upper surface of the hydraulic support 19 and then stops extending. Then, use any lifting device to lift and place several pressure plates on the pressure plate 9. During the whole process, it is necessary to control the rolling shutter motor 6 to rotate the rolling shutter shaft 7 to close the protective curtain 14, and lock the connecting block 20. Finally, the load sensor 18 converts the pressure transmitted from the pressure plate 9 into a corresponding electrical signal, uploads it to the system, and completes the load-bearing test of the hydraulic support 19.

[0025] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A hydraulic support test bench comprising a support frame and a load sensor (18), characterized in that: The support frame is a rectangular frame consisting of four columns (3) and a crossbeam (11) connecting the tops of the columns (3). The ends of the crossbeams (11) on both sides are vertically fixed downward to telescopic cylinders (13). The protruding ends of the telescopic cylinders (13) are connected to the pressure plate (9) through basket bolts (12). The load sensor (18) is fixed at the center of the bottom of the pressure plate (9). The front side of the support frame is fixed with an inclined support rod (4). The bottom of the inclined support rod (4) is connected to two adjacent columns (3) through a fixed base (5). The fixed base (5) is fixed on the concrete floor (1), and the remaining columns (3) are fixed on the concrete wall (2). Protective curtains (14) are provided on both sides of the rectangular frame. The upper ends of the protective curtains (14) are fixed on the rolling curtain shaft (7). The rolling curtain shaft (7) is connected to the rolling curtain motor (6), and the rolling curtain motor (6) is fixed on the concrete wall (2).

2. The hydraulic support test bench according to claim 1, characterized in that: A connecting block (20) is fixed at the bottom of the protective curtain (14), and a positioning hole (21) is provided at the center of the connecting block (20).

3. The hydraulic support test bench according to claim 2, characterized in that: A groove (15) is provided on the concrete floor (1), and a pneumatic telescopic rod (16) is provided in the groove (15). The pneumatic telescopic rod (16) is coaxial with the positioning hole (21).

4. The hydraulic support test bench according to claim 1, characterized in that: A connection hole (10) is provided on the edge of the pressure plate (9).

5. The hydraulic support test bench according to claim 1, characterized in that: The connection of the support frame is fixed with a support angle steel (17).

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