Hydraulic support for fully mechanized coal mining of coal mine

Abstract

The utility model discloses a coal mine fully mechanized mining hydraulic support which comprises a hydraulic support base, a support connecting rod, a shield support, a support shield beam, a support front guard beam, a hydraulic cylinder, a supporting frame, a supporting box and a limiting groove. The rear end of the support shield beam is hinged to the top of the shield support, the support front guard beam is hinged to the front portion of the support shield beam, the hydraulic cylinder supports the support shield beam and the support front guard beam, the supporting frame is installed in the middle of the bottom end of the support shield beam, and the supporting boxes are installed at the left end and the right end of the support shield beam respectively. The limiting grooves are formed in the upper portions of the outer ends of the supporting boxes, and the adjacent support shield beams are connected to the supporting boxes through supporting frames. The utility model solves the problem that the fully-mechanized coal mining hydraulic supports distributed in rows are not associated, so that one fully-mechanized coal mining hydraulic support is difficult to support at the first time after losing support accidentally.

Description

Technical Field

[0001] The utility model relates to the field of coal mine production, in particular to a hydraulic support for fully mechanized mining of coal mines. Background Art

[0002] The hydraulic support for fully-mechanized mining in coal mines is a key device used to support the roof in fully-mechanized mining working faces in coal mines. It uses a hydraulic system to achieve automatic lifting, frame shifting, and roof pre-tightening to ensure the safety of workers and improve coal mining efficiency. The working principle of the hydraulic support is based on hydraulic transmission technology. It is supplied by an emulsion pump station. When the pressure emulsion enters the column, the support rises to support the roof. As the roof sinks, the support resistance of the support to the roof increases, and the safety valve limits the liquid pressure to achieve constant resistance support. The hydraulic support can also perform auxiliary actions such as guarding, balancing, and adjusting the frame through a jack.

[0003] The comprehensive mining hydraulic supports are generally distributed in rows on the working surface. There is no connection between the comprehensive mining hydraulic supports. When a comprehensive mining hydraulic support accidentally loses its support, it is difficult to get support in the first time, causing a safety accident. Utility Model Content

[0004] The utility model aims to provide a coal mine fully mechanized mining hydraulic support to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal mine comprehensive mining hydraulic support, including a hydraulic support base, a support connecting rod, a shielding support, a support shielding beam, a support front shielding beam, a hydraulic cylinder, a supporting frame, a supporting box, and a limiting groove. The rear part of the hydraulic support base is hinged to the support connecting rod, the shielding support is hinged to the top of the support connecting rod, the rear end of the support shielding beam is hinged to the top of the shielding support, the front shielding beam of the support is hinged to the front of the support shielding beam, the hydraulic cylinder respectively supports the support shielding beam and the support front shielding beam, the supporting frame is installed in the middle of the bottom end of the support shielding beam, the supporting box is respectively installed at the left and right ends of the support shielding beam, the limiting groove is opened at the upper outer end of the supporting box, and adjacent support shielding beams are connected to the supporting box through the supporting frame.

[0006] On the basis of the above technical scheme, the supporting frame includes a U-shaped plate, a winding shaft, a motor, a sliding hole, a rope, and a limit block. The U-shaped plate is fixed to the middle part of the bottom end of the bracket shielding beam, the winding shaft is rotatably connected to the bottom end inside the U-shaped plate, the motor is connected to the winding shaft through the bottom end of the U-shaped plate, the sliding holes are respectively opened at the left and right ends of the U-shaped plate, the inner ends of the two ropes are respectively fixed to the side ends of the winding shaft through the sliding holes, and the ropes correspond to the limit grooves, and the limit blocks are respectively fixed to the outer ends of the ropes.

[0007] Based on the above technical solution, the rope places the limit block on the support box through the limit groove to connect the adjacent bracket shielding beam.

[0008] Compared with the prior art, the utility model has the following advantages: the utility model installs a support box and a corresponding support frame on the coal mine comprehensive mining hydraulic support, so that adjacently arranged comprehensive mining hydraulic supports can support each other. When a comprehensive mining hydraulic support accidentally loses support, they can support each other immediately, giving the operator buffer operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0010] Figure 2 It is a schematic diagram of the mutual supporting state of the utility model.

[0011] Figure 3 This is a schematic diagram of the support frame structure of the utility model.

[0012] In the figure: 1. hydraulic support base, 2. support connecting rod, 3. protective support, 4. support shielding beam, 5. support front guard beam, 6. hydraulic cylinder, 7. support frame, 8. support box, 9. limit groove, 10. U-shaped plate, 11. reel, 12. motor, 13. slide hole, 14. rope, 15. limit block. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1 to 3 As shown, a coal mine comprehensive mining hydraulic support includes a hydraulic support base 1, a support connecting rod 2, a shielding support 3, a support shielding beam 4, a support front shielding beam 5, a hydraulic cylinder 6, a supporting frame 7, a supporting box 8, and a limiting groove 9. The rear part of the hydraulic support base 1 is hinged to the support connecting rod 2, the shielding support 3 is hinged to the top of the support connecting rod 2, the rear end of the support shielding beam 4 is hinged to the top of the shielding support 3, the support front shielding beam 5 is hinged to the front of the support shielding beam 4, the hydraulic cylinder 6 supports the support shielding beam 4 and the support front shielding beam 5 respectively, the supporting frame 7 is installed at the middle of the bottom end of the support shielding beam 4, the supporting box 8 is respectively installed at the left and right ends of the support shielding beam 4, the limiting groove 9 is opened at the upper outer end of the supporting box 8, and adjacent support shielding beams 4 are connected to the supporting box 8 or through the supporting frame 7.

[0015] The support frame 7 includes a U-shaped plate 10, a winding shaft 11, a motor 12, a sliding hole 13, a rope 14, and a limit block 15. The U-shaped plate 10 is fixed to the middle part of the bottom end of the bracket shielding beam 4, the winding shaft 11 is rotatably connected to the inner bottom end of the U-shaped plate 10, the motor 12 is connected to the winding shaft 11 through the bottom end of the U-shaped plate 10, the sliding holes 13 are respectively opened at the left and right ends of the U-shaped plate 10, the inner ends of the two ropes 14 are respectively fixed to the side ends of the winding shaft 11 through the sliding holes 13, and the ropes 14 correspond to the limit grooves 9, and the limit blocks 15 are respectively fixed to the outer ends of the ropes 14.

[0016] The rope 14 places the limit block 15 on the support box 8 through the limit groove 9 to connect the adjacent support shielding beam 4.

[0017] The working principle of the utility model is as follows: the hydraulic cylinder 6 supports the support shielding beam 4 and the support front shielding beam 5, and the motor 12 rotates the winding shaft 11 to loosen the rope 14. The rope 14 places the limit block 15 on the support box 8 through the limit groove 9 to connect the adjacent support shielding beam 4. The motor 12 is started to rotate the winding shaft 11 to tighten the rope 14. Without affecting the movement of the comprehensive mining hydraulic support, when a comprehensive mining hydraulic support fails and loses support, the support shielding beam 4 falls. The adjacent support shielding beam 4 is dragged along the limit groove 9 by the rope to form a temporary support, leaving buffer time for the operator. At the same time, the operator loosens or tightens the winding shaft 11 according to the actual situation.

[0018] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A hydraulic support for fully mechanized mining in a coal mine, comprising a hydraulic support base (1), a support connecting rod (2), a shielding support (3), a support shielding beam (4), a support front guard beam (5), a hydraulic cylinder (6), a supporting frame (7), a supporting box (8), and a limiting groove (9), characterized in that: The rear part of the hydraulic support base (1) is hinged to the support connecting rod (2), the shielding support (3) is hinged to the top of the support connecting rod (2), the rear end of the support shielding beam (4) is hinged to the top of the shielding support (3), the support front shielding beam (5) is hinged to the front part of the support shielding beam (4), the hydraulic cylinder (6) supports the support shielding beam (4) and the support front shielding beam (5) respectively, the supporting frame (7) is installed at the middle part of the bottom end of the support shielding beam (4), the supporting box (8) is installed at the left and right ends of the support shielding beam (4), the limiting groove (9) is opened at the upper part of the outer end of the supporting box (8), and adjacent support shielding beams (4) are connected to the supporting box (8) through the supporting frame (7).

2. A coal mine fully mechanized mining hydraulic support according to claim 1, characterized in that: The support frame (7) comprises a U-shaped plate (10), a winding shaft (11), a motor (12), a sliding hole (13), a rope (14), and a limit block (15); the U-shaped plate (10) is fixed to the middle of the bottom end of the support shielding beam (4); the winding shaft (11) is rotatably connected to the inner bottom end of the U-shaped plate (10); the motor (12) is connected to the winding shaft (11) through the bottom end of the U-shaped plate (10); the sliding holes (13) are respectively opened at the left and right ends of the U-shaped plate (10); the inner ends of the two ropes (14) are respectively fixed to the side ends of the winding shaft (11) through the sliding holes (13); the ropes (14) correspond to the limit grooves (9); and the limit blocks (15) are respectively fixed to the outer ends of the ropes (14).

3. A coal mine fully mechanized mining hydraulic support according to claim 2, characterized in that: The rope (14) places the limit block (15) on the support box (8) through the limit groove (9) to connect the adjacent support shielding beam (4).

Images