Arc-shaped waste rock blocking support

Abstract

The utility model belongs to the field of mine supports, and relates to an arc-shaped waste rock blocking support which comprises a support body, a support rod body and a locking lifting driving mechanism. The whole bracket main body is U-shaped; the locking lifting driving mechanism is arranged in the bracket main body; the bottom of the bracket rod body extends into the bracket main body and is connected with the locking lifting driving mechanism; and the locking lifting driving mechanism drives the bracket rod body to freely lift along the axial direction of the bracket main body. The utility model provides the arc-shaped waste rock blocking bracket which is not limited by gears and is flexible and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mine support field relates to a kind of arc-shaped gangue blocking support, in particular to a kind of cutting top pressure relief along empty roadway arc-shaped gangue blocking support. BACKGROUND

[0002] Mine is the general term of shaft, chamber, equipment, ground building and structure of underground coal mine production system.Cutting top pressure relief along empty roadway technology is a kind of coal pillarless mining technology, aims at recycling the security pillar reserved in traditional mining method.This technology uses the periodic roof pressure of stope to make the roof of goaf fall along the pre-splitting surface in the roadside, forms the support structure to the overlying old roof beam, thereby reducing the surrounding rock pressure of along empty roadway, effectively controls the stability of roadway roof.When working in the space under the mine, gangue blocking support is needed to support cutting top pressure relief along empty roadway.Due to different roadway heights, arc-shaped gangue blocking support is usually adjusted according to the height of roadway, and the height is adjusted by multiple adjustment holes and bolts, which is not only troublesome to operate, but also can only be adjusted at fixed gears, and it is easy to appear that the height is too high when adjusting up a gear, and the height is insufficient when adjusting down a gear, and there is usually lack of connection between arc-shaped gangue blocking supports, so that multiple arc-shaped gangue blocking supports cannot be connected, the integrity is insufficient, and the stability of support is poor, so it needs to be improved. SUMMARY

[0003] In order to solve the above technical problems in the background art, the utility model provides an arc-shaped gangue blocking support which is not limited by gears and is flexible and convenient to use.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An arc-shaped gangue blocking support, characterized in that: the arc-shaped gangue blocking support comprises a support body, a support rod body and a lock position lifting driving mechanism; the support body is in the shape of U as a whole; the lock position lifting driving mechanism is arranged in the support body; the support rod body is inserted into the support body at the bottom and connected with the lock position lifting driving mechanism; the lock position lifting driving mechanism drives the support rod body to lift along the axial direction of the support body.

[0006] The lock position lifting driving mechanism comprises a lifting driving mechanism and a lock position mechanism arranged on the lifting driving mechanism; the lifting driving mechanism is arranged in the support body and connected with the support rod body.

[0007] The bottom of the support rod body is provided with an open slot along the axial direction of the support rod body; the lifting driving mechanism is inserted into the open slot and connected with the support rod body, and the lifting driving mechanism drives the support rod body to lift along the axial direction of the support body.

[0008] The lifting driving mechanism comprises an adjusting screw rod, a first bevel gear, a threaded block, a second bevel gear, a rotating rod, a rotating disc and a hand wheel; one end of the adjusting screw rod is movably arranged in the inside of the support body, and the other end extends into the opening groove along the axial direction of the opening groove; the first bevel gear is sleeved on the outside of the adjusting screw rod and is fixedly connected with the adjusting screw rod; the threaded block is sleeved on the outside of the adjusting screw rod and is threadedly matched with the adjusting screw rod; the inner wall of the support body is provided with a sunken groove along the axial direction of the support body, and the threaded block is provided with an anti-rotation gear outside, which is arranged in the sunken groove; the threaded block is connected with the support rod body and drives the support rod body to freely lift along the axial direction of the support body; the rotating rod penetrates through the side wall of the support body; the rotating disc is arranged outside the support body and is fixedly sleeved on the rotating rod; the second bevel gear is arranged inside the support body and is fixedly sleeved on the rotating rod; the second bevel gear is engaged with the first bevel gear; the hand wheel is arranged at the end of the rotating rod and can drive the rotating rod to rotate around the axial direction of the rotating rod; the locking mechanism is arranged on the rotating disc.

[0009] The locking mechanism comprises a positioning sleeve and a threaded locking rod; a plurality of positioning holes are uniformly arranged on the rotating disc in the circumferential direction; the positioning sleeve is fixedly arranged on the outer wall of the support body; the positioning sleeve is provided with a threaded hole; the axial direction of the threaded hole is parallel to the axial direction of the support body; the threaded locking rod is threadedly matched with the threaded hole and is screwed into the positioning hole.

[0010] The support rod body comprises a vertical part, an arc-shaped part and a supporting part which are sequentially connected from bottom to top; the opening groove is arranged along the axial direction of the vertical part; the lifting driving mechanism drives the supporting part to freely lift along the axial direction of the support body through the vertical part and the arc-shaped part.

[0011] The arc-shaped gangue blocking support is a single-piece structure or a connected-piece structure; when the arc-shaped gangue blocking support is a connected-piece structure, the connected-piece structure comprises at least two groups of arc-shaped gangue blocking supports, and adjacent two groups of arc-shaped gangue blocking supports are connected through a connecting mechanism.

[0012] The connecting mechanism comprises a support, a rotating shaft, a connecting arm and a connecting piece; the support is fixedly arranged on the side wall of the support body; the connecting arm is movably arranged on the support through the rotating shaft; the connecting piece is arranged on the connecting arm, and adjacent two groups of arc-shaped gangue blocking supports are connected through the connecting piece.

[0013] The connecting arm comprises a first connecting arm and a second connecting arm; the first connecting arm and the second connecting arm are arranged on the two sides of the support body and are movably arranged on the support through the rotating shaft respectively; the first connecting arm is provided with a slot; the connecting piece is arranged on the second connecting arm; when the adjacent two groups of arc-shaped gangue blocking supports are connected, the connecting piece of the first group of arc-shaped gangue blocking supports is movably arranged in the slot of the second group of arc-shaped gangue blocking supports.

[0014] The aforementioned connector includes a positioning post, a support spring, and a pin; the pin is generally sickle-shaped; the support spring is fitted onto the outside of the positioning post; one end of the pin is movably connected to the positioning post via the support spring, and the other end is movably disposed in the slot.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model provides an arc-shaped rock-blocking support, including a support body, a support rod, and a locking and lifting drive mechanism. The support body is U-shaped. The locking and lifting drive mechanism is located within the support body. The bottom of the support rod extends into the support body and is connected to the locking and lifting drive mechanism. The locking and lifting drive mechanism drives the support rod to move freely up and down along the axial direction of the support body. This utility model, through the locking and lifting drive mechanism, can both drive the support rod to move freely up and down and lock its position. The height of the arc-shaped rock-blocking support can be quickly adjusted according to the support requirements of roadways at different heights. It is easy to operate, not limited by gear positions, and more flexible and convenient. Attached Figure Description

[0017] Figure 1 This is a front view structural schematic diagram of the arc-shaped rock-blocking support provided by this utility model;

[0018] Figure 2 This is a side view of the arc-shaped rock-blocking support provided by this utility model;

[0019] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the arc-shaped rock-blocking support provided by this utility model in the spliced ​​state;

[0021] Figure 5 yes Figure 4 Enlarged structural diagram at point B.

[0022] In the picture:

[0023] 1-Bracket body; 2-Adjusting screw; 3-First bevel tooth; 4-Bracket rod; 401-Vertical part; 402-Arc-shaped part; 403-Support part; 5-Support; 6-Rotating shaft; 7-Connecting arm; 8-Opening slot; 9-Threaded block; 10-Rotating rod; 11-Second bevel tooth; 12-Positioning sleeve; 13-Threaded hole; 14-Threaded locking rod; 15-Handwheel; 16-Turntable; 17-Positioning hole; 18-Positioning pin; 19-Supporting spring; 20-Pin; 21-Slot. Detailed Implementation

[0024] See Figure 1 as well as Figure 2The utility model provides an arc keeps off gangue support, including support main part 1, support rod body 4 and lock position lifting drive mechanism, support main part 1 is overall and presents U type, lock position lifting drive mechanism is placed in support main part 1, support rod body 4 bottom stretches into support main part 1 and is connected with lock position lifting drive mechanism, lock position lifting drive mechanism drives support rod body 4 and along the axial self -lifting of support main part 1. Figure 2 And Figure 3 The utility model adopts lock position lifting drive mechanism, including lifting drive mechanism and setting on lifting drive mechanism's lock position mechanism, lifting drive mechanism is placed in support main part 1 and is connected with support rod body 4, wherein, the bottom of support rod body 4 is set with opening slot 8 along the axial of support rod body 4, lifting drive mechanism stretches into opening slot 8 and is connected with support rod body 4, and lifting drive mechanism drives support rod body 4 and along the axial self -lifting of support main part 1.

[0025] Exemplary, referring to Figure 3 The utility model adopts lifting drive mechanism, including adjusting screw rod 2, first bevel gear 3, threaded block 9, second bevel gear 11, rotating rod 10, rotating disc 16 and hand wheel 15, one end of adjusting screw rod 2 is movably arranged in the inside of support main part 1, and the other end stretches into opening slot 8 along the axial of opening slot 8, first bevel gear 3 is sleeved in the outside of adjusting screw rod 2 and is fixedly connected with adjusting screw rod 2, threaded block 9 is sleeved in the outside of adjusting screw rod 2 and is threadedly matched with adjusting screw rod 2, the inner wall of support main part 1 is provided with sunken groove along the axial of support main part 1, and the outside of threaded block 9 is provided with anti -rotation tooth, and the anti -rotation tooth is placed in sunken groove, threaded block 9 is connected with support rod body 4 and drives support rod body 4 and along the axial self -lifting of support main part 1, rotating rod 10 penetrates the side wall of support main part 1, rotating disc 16 is placed in the outside of support main part 1 and is fixedly sleeved on rotating rod 10, second bevel gear 11 is placed in the inside of support main part 1 and is fixedly sleeved on rotating rod 10, second bevel gear 11 is engaged with first bevel gear 3, hand wheel 15 is set up at the end of rotating rod 10 and can drive rotating rod 10 rotation around the axial of rotating rod 10, and lock position mechanism is set up on rotating disc 16.

[0026] Please continue to refer to Figure 3 The utility model adopts lock position mechanism, including positioning sleeve 12 and threaded lock rod 14, the circumferential of rotating disc 16 is evenly provided with a plurality of positioning holes 17, positioning sleeve 12 is fixedly set up on the outer wall of support main part 1, positioning sleeve 12 is provided with threaded hole 13, the axial of threaded hole 13 is parallel with the axial of support main part 1, and threaded lock rod 14 is screwed into positioning hole 17 after the threaded cooperation with threaded hole 13.

[0027] Referring to Figure 2The support rod body 4 comprises a vertical part 401, an arc-shaped part 402 and a support part 403 connected in sequence from bottom to top; the open slot 8 is arranged along the axial direction of the vertical part 401; the lifting driving mechanism drives the support part 403 to lift along the axial direction of the support main body 1 through the vertical part 401 and the arc-shaped part 402.

[0028] In actual use, according to the height of the roadway, the rotating rod 10 is rotated to drive the second bevel gear 11 to drive the adjusting screw rod 2 to rotate through the first bevel gear 3, the adjusting screw rod 2 drives the threaded block 9 to drive the support rod body 4 to move upwards until the support part 403 abuts against the roof of the roadway. Then, the threaded locking rods 14 at the top and bottom of the positioning sleeve 12 are screwed into the corresponding positioning holes 17 in the outer wall of the rotating disc 16, the rotating disc 16 is fixed, the rotating rod 10 is locked, the adjusting screw rod 2 is locked, the position of the support rod body 4 is locked, the height of the arc-shaped gangue blocking support can be quickly adjusted, the operation is convenient, the support rod body 4 can be adjusted to any height, is not limited by gears, is more flexible and convenient, and the support demand of the roadway with different heights can be met.

[0029] The arc-shaped gangue blocking support provided by the utility model is a single-piece structure or a connected-piece structure, when the arc-shaped gangue blocking support is a connected-piece structure, the connected-piece structure comprises at least two groups of arc-shaped gangue blocking supports, and the two adjacent groups of arc-shaped gangue blocking supports are connected through a connecting mechanism, for example, the arc-shaped gangue blocking support comprises two groups of arc-shaped gangue blocking supports, and a schematic diagram after connection is as shown in Figure 4 .

[0030] Referring to Figure 1 , the connecting mechanism comprises a support 5, a rotating shaft 6, a connecting arm 7 and a connecting piece; the support 5 is fixedly arranged on the side wall of the support main body 1; the connecting arm 7 is movably arranged on the support 5 through the rotating shaft 6; the connecting piece is arranged on the connecting arm 7, and the two adjacent groups of arc-shaped gangue blocking supports are connected through the connecting piece. The connecting arm 7 comprises a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm are arranged on the two sides of the support main body 1 and are movably arranged on the support 5 through the rotating shaft 6; the first connecting arm is provided with a slot 21; the connecting piece is arranged on the second connecting arm; when the two adjacent groups of arc-shaped gangue blocking supports are connected, the connecting piece of the first group of arc-shaped gangue blocking supports is movably arranged in the slot 21 of the second group of arc-shaped gangue blocking supports. Referring to Figure 5 , the connecting piece comprises a positioning column 18, a supporting spring 19 and a bolt 20; the bolt 20 is in the shape of a sickle as a whole; the supporting spring 19 is sleeved outside the positioning column 18; one end of the bolt 20 is movably connected with the positioning column 18 through the supporting spring 19, and the other end is movably arranged in the slot 21. For example, referring to Figure 4The connecting arm 7 is rotated to a horizontal state, and the arc-shaped gangue blocking support is spliced two by two, so that the connecting arms 7 are connected together, wherein the bolt 20 is pulled to stretch the supporting spring 19, and then the bolt 20 is released to be clamped into the slot 21 at the end of the connecting arm 7 adjacent to the bolt 20, so that the connecting arm 7 is fixed, thereby facilitating the combination and connection of the arc-shaped gangue blocking supports, improving the integrity, and further improving the stability of the support.

Claims

1. An arc-shaped retaining wall for rockfill, characterized in that: The arc-shaped rock retaining bracket includes a bracket body (1), a bracket rod (4), and a locking lifting drive mechanism; the bracket body (1) is U-shaped in general; the locking lifting drive mechanism is placed in the bracket body (1); the bottom of the bracket rod (4) extends into the bracket body (1) and is connected to the locking lifting drive mechanism; the locking lifting drive mechanism drives the bracket rod (4) to move freely up and down along the axial direction of the bracket body (1).

2. The arc-shaped rock-blocking support according to claim 1, characterized in that: The locking lifting drive mechanism includes a lifting drive mechanism and a locking mechanism disposed on the lifting drive mechanism; the lifting drive mechanism is placed in the support body (1) and connected to the support rod (4).

3. The arc-shaped rock-blocking support according to claim 2, characterized in that: The bottom of the support rod (4) is provided with an opening groove (8) along the axial direction of the support rod (4); the lifting drive mechanism extends into the opening groove (8) and is connected to the support rod (4), and the lifting drive mechanism drives the support rod (4) to move freely up and down along the axial direction of the support body (1).

4. The arc-shaped rock-blocking support according to claim 3, characterized in that: The lifting drive mechanism includes an adjusting screw (2), a first bevel gear (3), a threaded block (9), a second bevel gear (11), a rotating rod (10), a turntable (16), and a handwheel (15); one end of the adjusting screw (2) is movably disposed inside the support body (1), and the other end extends into the opening groove (8) along the axial direction of the opening groove (8); the first bevel gear (3) is fitted outside the adjusting screw (2) and fixedly connected to the adjusting screw (2); the threaded block (9) is fitted outside the adjusting screw (2) and threadedly engaged with the adjusting screw (2); the inner wall of the support body (1) is provided with a countersunk groove along the axial direction of the support body (1), and the threaded block (9) is provided with an anti-rotation device on its exterior. The anti-rotation tooth is placed in the sinker; the threaded block (9) is connected to the support rod (4) and drives the support rod (4) to move freely up and down along the axial direction of the support body (1); the rotating rod (10) passes through the side wall of the support body (1); the turntable (16) is placed outside the support body (1) and fixedly mounted on the rotating rod (10); the second bevel tooth (11) is placed inside the support body (1) and fixedly mounted on the rotating rod (10); the second bevel tooth (11) meshes with the first bevel tooth (3); the handwheel (15) is set at the end of the rotating rod (10) and can drive the rotating rod (10) to rotate around the axial direction of the rotating rod (10); the locking mechanism is set on the turntable (16).

5. The arc-shaped rock-blocking support according to claim 4, characterized in that: The locking mechanism includes a positioning sleeve (12) and a threaded locking rod (14); the turntable (16) is provided with a plurality of positioning holes (17) evenly distributed around its circumference; the positioning sleeve (12) is fixedly mounted on the outer wall of the support body (1); the positioning sleeve (12) is provided with a threaded hole (13); the axial direction of the threaded hole (13) is parallel to the axial direction of the support body (1); the threaded locking rod (14) is screwed into the positioning hole (17) after being threaded into the threaded hole (13).

6. The arc-shaped rock-blocking support according to claim 5, characterized in that: The support rod (4) includes a vertical part (401), an arc-shaped part (402) and a support part (403) connected sequentially from bottom to top; the opening slot (8) is arranged along the axial direction of the vertical part (401); the lifting drive mechanism drives the support part (403) to move freely up and down along the axial direction of the support body (1) through the vertical part (401) and the arc-shaped part (402).

7. The arc-shaped rock-blocking support according to any one of claims 1-6, characterized in that: The arc-shaped rock-blocking support can be a single-piece structure or a continuous structure. When the arc-shaped rock-blocking support is a continuous structure, the continuous structure includes at least two sets of arc-shaped rock-blocking supports, and adjacent sets of arc-shaped rock-blocking supports are connected by a connecting mechanism.

8. The arc-shaped rock-blocking support according to claim 7, characterized in that: The connecting mechanism includes a support (5), a rotating shaft (6), a connecting arm (7), and a connector; the support (5) is fixedly installed on the side wall of the support body (1); the connecting arm (7) is movably installed on the support (5) through the rotating shaft (6); the connector is installed on the connecting arm (7), and two adjacent sets of arc-shaped rock retaining supports are connected by the connector.

9. The arc-shaped rock-blocking support according to claim 8, characterized in that: The connecting arm (7) includes a first connecting arm and a second connecting arm. The first connecting arm and the second connecting arm are arranged on both sides of the support body (1) and are movably mounted on the support (5) via a rotating shaft (6). The first connecting arm is provided with a slot (21). The connecting member is placed on the second connecting arm. When two adjacent sets of arc-shaped rock-blocking supports are connected, the connecting member of the first set of arc-shaped rock-blocking supports is movably mounted in the slot (21) of the second set of arc-shaped rock-blocking supports.

10. The arc-shaped rock-blocking support according to claim 9, characterized in that: The connector includes a positioning post (18), a support spring (19), and a pin (20); the pin (20) is sickle-shaped; the support spring (19) is fitted on the outside of the positioning post (18); one end of the pin (20) is movably connected to the positioning post (18) through the support spring (19), and the other end is movably set in the slot (21).

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